SDG&E Electric Service Standards

2025 SERVICE STANDARDS & GUIDE GENERAL 000 INFORMATION Historical Record: 3/21/2025 External Version RESIDENTIAL, COMMERCIAL 100 & INDUSTRIAL OVERHEAD CUSTOMER-OWNED METER 200 POLES UNDERGROUND ELECTRIC 300 SERVICE ELECTRIC SERVICE & 500 METERING EQUIPMENT MEDIUM VOLTAGE ELECTRIC SERVICE & METERING 600 EQUIPMENT ELECTRIC TERMINATING 700 ENCLOSURES, 0-600 VOLTS CUSTOMER GENERATION 800 GAS 1000 DISCLAIMER & CONTACTS SUMMARY OF CHANGES DETAILED TABLE OF CONTENTS SERVICE ORDER TEAMS & REGIONAL PROJECT MANAGEMENT OFFICES PROJECT MANAGEMENT REGIONAL BOUNDARY MAP FREQUENTLY REFERENCED STANDARDS ALPHABETICAL SUBJECT INDEX SIGNIFICANT REVISION LIST SAN DIEGO AREA ELECTRICAL NEWSLETTER

ATTENTION: THESE STANDARDS WERE DEVELOPED FOR MAINTAINING SAFETY AND RELIABILITY OF THE ELECTRIC DISTRIBUTION AND SERVICE SYSTEMS. THE INTENT OF THIS STANDARD IS TO GUIDE ENGINEERS, DESIGNERS/PLANNERS AND CONSTRUCTION PERSONNEL AND PROVIDE TYPICAL CONSTRUCTION METHODS FOR ELECTRIC DISTRIBUTION. NOT ALL ARRANGEMENTS ARE DEPICTED AND IT IS THE USER’S RESPONSIBILITY TO APPLY THESE STANDARDS APPROPRIATELY. ALL USERS MUST USE GOOD JUDGMENT. STANDARDS ARE UPDATED AS NEEDED. CONSULT EDE FOR LATEST VERSION. SDG&E STANDARDS MUST BE APPLIED. PRE- CONSTRUCTION APPROVAL OF A “DEVIATION REQUEST” IS REQUIRED FOR ANY EXCEPTION TO THESE STANDARDS. ANY ALTERATIONS, MODIFICATIONS OR IMPROVEMENTS TO THIS AND ALL STANDARDS MUST BE REVIEWED, APPROVED AND DOCUMENTED BY EDE-CONSTRUCTION STANDARDS AND DISTRICT C&O’S. THE CPUC’S GENERAL ORDER 95 RULES/REQUIREMENTS ARE NOT INTENDED FOR USE AS COMPLETE CONSTRUCTION SPECIFICATIONS BUT EMPLOY ONLY THE MINUMUM REQUIREMENTS WHICH ARE MOST IMPORTANT FROM THE STANDPOINT OF SAFETY AND RELIABILITY.

SDG&E MAY IMPOSE STRICTER RULES AND REQUIREMENT IN THE INTREST MAINTANANING SAFETY AND RELIABILTY OF OUR ELECTRICAL SYSTEM. CONSTRUCTION SHALL BE ACCORDING TO ACCEPTED GOOD PRACTICE FOR GIVEN LOCAL CONDITIONS IN ALL SITUATIONS NOT SPECIFIED IN THE STANDARD. SDG&E WILL NOT ACCEPT ANY SYSTEM DESIGN OR INSTALLATION WHICH DOES NOT CONFORM TO THESE STANDARDS DEVIATIONS CANNOT BE GRANTED WHICH CONFLICT WITH THE CPUC GENERAL ORDERS OR OTHER GOVERNING AGENCIES. THESE MAY INCLUDE SEPARATION FROM ENERGIZED FACILITIES AND WORKING CLEARANCES. BASED ON UNUSUAL OR UNSAFE SITE CONDITIONS SDG&E MAY IN THE INTEREST OF SAFETY OR RELIABILITY REQUIRE CONSTRUCTION MEASURES BEYOND THOSE SPECIFICALLY STATED IN THIS MANUAL. EXCEPT FOR A REQUIREMENT TO IMMEDIATELY ADOPT NEWLY PUBLISHED STANDARDS, THE APPLICATION OF NEWLY PUBLISHED STANDARDS IS REQUIRED FOR ALL WORK UP TO THE 30% PROJECT DESIGN APPROVAL LEVEL. ALL DESIGN AND CONSTRUCTION WORK AFTER 30% PROJECT DESIGN APPROVAL MAY USE CONSTRUCTION STANDARDS THAT IMMEDIATELY

PRECEDE THE NEWLY UPDATED STANDARD, UNLESS THE IMMEDIATE ADOPTION OF NEWLY PUBLISHED STANDARDS IS MANDATED. USE OF “BLOCK STOCK” MUST BE COORDINATED WITH INVENTORY & LOGISTICS AND IS GENERALLY ONLY APPLIED AS A “LAST RESORT” AFTER CONSULTATION AND AGREEMENT WITH STAKEHOLDERS AND AN ALTERNATE SOLUTION, SUPPLIER, MATERIAL OR METHOD IS DEEMED ACCEPTABLE AND AVAILABLE. IF YOU HAVE ANY QUESTIONS REGARDING THE CONTENT OF THESE MANUALS, PLEASE EMAIL CONSTRUCTIONSTANDARDSADMINISTRATORS@SEMPRAUTILITIES.COM OR CONTACT: REV. 09/04/2024

SUMMARY OF CHANGES DATE STANDARD PAGES QTY FILE NAME 01/24/20 NEW FORMAT RELEASE 1 SG2020v0124.pdf 02/19/20 002 1 SG2020v0219.pdf 04/24/20 301, 320 2 SG2020v0424.pdf 05/22/20 001, 021, 022, 023, 024, INTERNAL SERVER UPGRADE 6 SG2020v0522.pdf 12/18/20 201, 202, 203, 204, 205, 206, 207, 208, 209, 210 10 SG2020v1218.pdf 01/22/21 COVER PAGE, DISCLAIMER 2 SG2021v0122.pdf 02/19/21 24, 301, (308 MOVED TO FMO) 3 SG2021v0219.pdf 301, 302, 303, 304, 305, 306, 307, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 07/23/21 19 SG2021v0723.pdf 320 01/21/22 Cover Page 1 SG2022v0121.pdf 04/22/22 SG1, SG6 2 SG2022v0422.pdf 10/14/22 003, 524 2 SG2022v1014.pdf 12/22/22 005 1 SG2022v1222.pdf 01/20/23 COVER PAGE, DISCLAIMER, 006, 019, 806 5 SG2023v0120.pdf 04/21/23 004, 009, 011, 012 4 SG2023v0421.pdf 05/19/23 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112 12 SG2023v0519.pdf 06/23/23 013, 015, 016, Electrical Newsletter 4 SG2023v0623.pdf 08/25/23 311 1 SG2023v0825.pdf 09/22/23 306, 309 2 SG2023v0922.pdf 10/20/23 103, 303 2 SG2023v1020.pdf 11/22/23 104, 106, 109 3 SG2023v1122.pdf

12/21/23 019, 319 2 SG2023v1221.pdf 02/23/24 312, 315 2 SG2024v0223.pdf 06/07/24 018 1 SG2024v0607.pdf DISCLAIMER, 018, 601, 602, 603, 604, 605, 606, 607, 608, 609, 701, 702, 703, 704, 705, 11/22/24 20 SG2024v1122.pdf 706, 707, 708, 709 01/24/25 107, 112, 303, 309, 320, 523 6 SG2025v0124.pdf 801, 802, 803, 804, 805, 806, 807, 808, 809, 810, 811, 501, 502, 503, 504, 505, 506, 507, 02/21/25 34 SG2025v0221.pdf 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 522, 524, 525 001, 002, 003, 004, 005, 007, 008, 009, 010, 011, 012, 013, 014, 015, 016, 017, 020, 023, 03/21/25 19 SG2025v0321.pdf 024

INTRODUCTION STANDARDS MANUAL OWNER CONTACT INFORMATION, TABLE OF CONTENTS, SERVICE ORDER TEAMS & REGIONAL PROJECT MANAGEMENT OFFICES, PROJECT MANAGEMENT REGIONAL BOUNDARY MAP, ALPHABETICAL SUBJECT INDEX, SIGNIFICANT REVISIONS LIST SECTION 000 – GENERAL INFORMATION DEFINITIONS OF TERMS, GENERAL INFORMATION, LINE TRUCK ACCESS SECTION 100 – RESIDENTIAL, COMMERCIAL & INDUSTRIAL OVERHEAD OVERHEAD SERVICE INFORMATION SECTION 200 – CUSTOMER-OWNED METER POLES CUSTOMER-OWNED METER POLES & TEMPORARY SERVICE INSTALLATIONS SECTION 300 – UNDERGROUND ELECTRIC SERVICE UNDERGROUND ELECTRIC SERVICE INFORMATION SECTION 500 – ELECTRIC SERVICE & METERING EQUIPMENT GENERAL REQUIREMENTS, LOW VOLTAGE SERVICE & METERING REQUIREMENTS SECTION 600 – MEDIUM VOLTAGE ELECTRIC SERVICE & METERING EQUIPMENT SERVICE & METERING REQUIREMENTS FOR MEDIUM VOLTAGE SERVICE SECTION 700 – ELECTRIC TERMINATING ENCLOSURES, 0 – 600V GENERAL REQUIREMENTS FOR TERMINATING ENCLOSURES, CONDUCTOR IDENTIFICATION, PHASE ARRANGEMENT SECTION 800 – CUSTOMER GENERATION STAND-BY & DISTRIBUTED GENERATION SECTION 1000 – GAS

GENERAL INFORMATION, GAS SERVICE & METERING EQUIPMENT, GAS SERVICE POLICIES & METER LOCATIONS, BARRICADES, GAS FACILITIES NEAR UG SUBSTRUCTURES UG – UNDERGROUND CONSTRUCTION STANDARDS PADS, GROUNDING, CONNECTORS, RETAINING WALLS & CLEARANCES, WIRELESS COMMUNICATIONS ATTACHMENT TO DISTRIBUTION POLE ELECTRICAL NEWSLETTERS INTERNATIONAL CODE COUNCIL (ICC) SAN DIEGO AREA ELECTRICAL NEWSLETTERS © 1998 - 2022 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 03/29/2022 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG1 1 OF 1 TABLE OF CONTENTS

SCOPE: THIS STANDARD DETAILS SG SIGNIFICANT REVISIONS LIST. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. ENTIRE MANUAL a. REVISED INFORMATION IN THE PAGE FOOTER TO INCLUDE DOCUMENT CHANGE HISTORY AND NUMBER OF SHEETS IN A SPECIFIC STANDARD. b. ADDED A NEW TABLE OF CONTENTS AT THE BEGINNING OF EACH SECTION. c. REPLACED EXISTING INDEX SECTIONS WITH NEW ALPHABETICAL SECTION INDEXES AT THE BEGINNING OF EACH SECTION. d. ADDED STANDARD REFERENCES AT THE BOTTOM LEFT SIDE OF EACH PAGE, WHEN APPLICABLE. e. INCREASED THE NUMBER OF PAGES NEEDED TO IMPROVE READABILITY. f. CHANGED STANDARD TITLES WHEN NEEDED TO MORE ACCURATELY REFLECT THE SUBJECT. II. INTRODUCTION SECTION a. ADDED SG6, SIGNIFICANT REVISIONS LIST. III. SECTION 000 – GENERAL INFORMATION a. DIVIDED “ELECTRIC SERVICE POLICIES – NEW AND EXISTING CUSTOMER” (OLD PAGES 013.1 – 013.12) INTO FOUR NEW STANDARDS, AS FOLLOWS: 1. “ELECTRIC SERVICE POLICIES – NEW & EXISTING CUSTOMERS” (SG011) 2. “ELECTRIC SERVICE POLICIES – NEW PROJECT TYPES” (SG012) 3. “ELECTRIC SERVICE POLICIES – EXISTING CUSTOMER” (SG013) 4.

“ELECTRIC SERVICE POLICIES – EXISTING CUSTOMER FEEDER EXCEPTIONS” (SG014) b. ON PAGES SG012.1 AND SG013, TO ASSIST SDG&E PLANNERS AND CUSTOMERS IN THE PLANNING PHASE OF THEIR PROJECT, ADDED A NEW PARAGRAPH AS FOLLOWS: 1. GENERAL SERVICE REQUIREMENT TO MULTIPLE MULTI-UNIT BUILDINGS ON A SINGLE PREMISES – WHEN THERE IS MORE THAN ONE MULTI-UNIT BUILDING ON A SINGLE PREMISES, AN INDIVIDUAL SDG&E SERVICE IS GENERALLY REQUIRED TO EACH OF THE MULTI-UNIT BUILDINGS. BOTH RESIDENTIAL AND NON-RESIDENTIAL APPLICATIONS ARE SUBJECT TO THIS REQUIREMENT. REFER TO SG014 FOR FURTHER DETAIL. IV. SECTION 100 – RESIDENTIAL, COMMERCIAL & INDUSTRIAL OVERHEAD a. MOVED OLD PAGE 123 TO SG107.3 AND REVISED CONTENT TO CLARIFY THE 8-FOOT SERVICE DROP CLEARANCE AS SPECIFIED IN G.O. 95 THAT IS REQUIRED ABOVE BUILDINGS ON ADJACENT PREMISES EXCEPT AS DEFINED IN NOTES ON PAGE SG107.7. V. SECTION 200 – CUSTOMER-OWNED METER POLES a. NO SIGNIFICANT CHANGES. VI. SECTION 300 – UNDERGROUND ELECTRIC SERVICE a. NO SIGNIFICANT CHANGES. VII. SECTION 500 – ELECTRIC SERVICE & METERING EQUIPMENT (NEW SECTION) a.

DIVIDED EXISTING SECTION 600 INTO TWO SECTIONS BY CREATING NEW SECTION 500 FOR LOW VOLTAGE ELECTRIC SERVICE AND METERING EQUIPMENT AND CHANGING TERMINOLOGY FROM “HIGH” TO “MEDIUM” VOLTAGE ELECTRIC SERVICE AND METERING EQUIPMENT IN SECTION 600. b. HOUSEKEEPING PAD WITHIN A BUILDING MUST BE FLUSH WITH THE SERVICE EQUIPMENT. ADDED A NEW REQUIREMENT “WORKING SPACE FOR NON-RESIDENTIAL SERVICE PANELS REQUIRES A PERMANENT CONCRETE SLAB” ON PAGE SG504.5. THIS NEW REQUIREMENT REPLACES NOTE 5 ON OLD PAGE 604.1. c. OLD PAGE 604.2 IS NOW NEW PAGE SG506.1. UNDER “DOORS”, THE CALIFORNIA ELECTRIC CODE CHANGED THE REQUIREMENT FOR SERVICES RATED 1200A, OR MORE, TO NOW APPLY TO SERVICES RATED 800A, OR MORE. © 1998 - 2022 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 03/29/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG6.1 1 OF 2 SIGNIFICANT REVISIONS LIST

NOTES (CONT’D): d. OLD PAGE 604.2, NEW PAGE SG506.1, UNDER “DEDICATED ELECTRICAL SPACE”, EXCEPTION 2, HAS BEEN REVISED AS, “DRY PIPES AND/OR DUCTS NOT CONTAINING FLUIDS, AND INSTALLED FOR THE SOLE PURPOSE OF VENTING ARE PERMITTED WITHIN THE 6-FOOT (1.8M) ZONE.” e. REMOVED THE COMMUNICATIONS INFORMATION FROM THE ILLUSTRATION ON PAGE SG510.3, OLD PAGE 607.3, REMOVED NOTE 6 FROM OLD PAGE 607.4, NEW PAGE SG510.4, AND ADDED “METERING COMMUNICATIONS” INFORMATION REFERENCING NEW PAGE SG525 AT THE BOTTOM OF PAGE SG510.4. f. REVISED THE HEADING “BUS TAP DRAWINGS FOR APPROVAL” ON PAGE SG517.1, OLD PAGE 623, TO “SWITCHBOARD BUS/WIRE TAP DRAWINGS FOR APPROVAL.” ADDED A REQUIREMENT FOR BUS TAP DRAWINGS PREPARED BY A QUALIFIED ENGINEER WHENEVER MECHANICAL LUGS ARE BEING ADDED TO EXISTING BUS, OR MANUFACTURER INSTALLED WIRE CONDUCTORS ARE TO BE TAPPED. g. ADDED NEW PAGES SG524.8–10, “UNMETERED ELECTRIC SERVICE”, TO PROVIDE A STANDARD FOR INSTALLATION OF A CUSTOMER-OWNED AND INSTALLED WIRELESS COMMUNICATIONS ANTENNA ATTACHMENT ON A DIRECT BURIAL OR

FOUNDATION POLE WITH CONVENTIONAL LUMINAIRE FOR ROADWAY LIGHTING OWNED BY SDG&E. h. ADDED NEW PAGE SG525, “METERING COMMUNICATIONS”, TO PROVIDE DIRECTION FOR ESTABLISHING EFFECTIVE METERING COMMUNICATIONS WHEN A METER LOCATION DOES NOT FACILITATE STANDARD “SMART METER” COMMUNICATION METHODS. VIII. SECTION 600 – MEDIUM VOLTAGE ELECTRIC SERVICE & METERING EQUIPMENT a. DIVIDED EXISTING SECTION 600 INTO TWO SECTIONS BY CREATING NEW SECTION 500 FOR LOW VOLTAGE ELECTRIC SERVICE AND METERING EQUIPMENT AND CHANGING TERMINOLOGY FROM “HIGH” TO “MEDIUM” VOLTAGE ELECTRIC SERVICE AND METERING EQUIPMENT IN SECTION 600. IX. SECTION 700 – ELECTRIC TERMINATING ENCLOSURES, 0 – 600V a. REVISED “PHASE ARRANGEMENT” INFORMATION ON OLD PAGE 700, NEW PAGE, SG703, TO REQUIRE THE HIGH LEG TO BE IN THE “C” PHASE POSITION. b. EXPANDED OLD PAGE 707 INTO NEW PAGES SG707.1–2, “RESIDENTIAL SINGLE-PHASE MULTI-METER STACK”. REVISED THE DESCRIPTION AT THE TOP OF THE PAGE BY ADDING “FACTORY-MANUFACTURED PULL CAN AND METER STACK(S)” AND, “THIS

STANDARD DOES NOT APPLY TO FIELD INSTALLED PULL CANS WITH RACEWAYS AND CABLING TO INDIVIDUAL METER PANELS.” ADDED A NEW NOTE 10 TO PAGE SG707.2, AS FOLLOWS: 1. THE SDG&E PLANNER SHALL PROVIDE THE CUSTOMER WITH A COPY OF THIS STANDARD WITH THE ELECTRIC METER & SERVICE LOCATION FORM BECAUSE IT IS A SPECIAL APPLICATION. IT IS IMPORTANT FOR THE CUSTOMER TO UNDERSTAND THE EQUIPMENT MUST BE FACTORY-MANUFACTURED WITH HORIZONTAL BUSSING FROM THE PULL CAN TO THE METERING SECTION(S). XI. SECTION 800 – CUSTOMER GENERATION a. MODIFIED PAGE SG806.13 PER NEW 36-INCH CLEARANCE REQUIREMENTS SPECIFIED ON PAGES SG1007.1-4. XII. SECTION 1000 – GAS a. ADDED A DEFINITION FOR LARGE GAS FIELD SERVICE VEHICLE ACCESS ON PAGE SG1003.1. b. ADDED “SIGNAGE REQUIREMENTS FOR GAS SERVICE LOCATIONS ON MULTI-TENANT BUILDINGS” ON PAGES SG1003.2-3. c. CHANGED “WELD HOLE” TO “TIE-IN HOLE” ON PAGES SG1004.1–2. d. CHANGED “NUMBER OF SERVICES ALLOWED TO A BUILDING – NEW PROJECTS” TO “GAS SERVICE POLICY FOR NEW PROJECTS – NUMBER OF SERVICES ALLOWED”, ON PAGES SG1006.2–3 (OLD PAGE 1007), REFORMATTED THIS SECTION, AND CHANGED

THE TITLES OF SUBSECTIONS 1, 3, AND 4. e. OLD PAGES 1008.1–2 ARE NOW PAGES SG1007.1–5, WITH NEW 36-INCH CLEARANCE REQUIREMENTS FROM GAS RISER. f. OLD PAGES 1008.3–4 ARE NOW PAGES SG1008.1–3, WITH THE LATEST PRODUCT INFORMATION, ILLUSTRATIONS AND MANUFACTURER’S CONTACT INFORMATION. ON PAGE SG1008.1, THE NEW 36-INCH CLEARANCE REQUIREMENTS FROM GAS RISER ARE SPECIFIED. g. TABLES ON OLD PAGES 1010 AND 1011 HAVE BEEN REVISED AND ARE NOW ON PAGES SG1009.2 AND SG1009.3. h. OLD PAGES 1241–1243 ARE NOW PAGES SG1012.1–4. i. ADDED NEW PAGE SG1010.8, “ADEQUATE SUPPORT FOR WALL-MOUNTED METER HEADERS”, TO THE “GAS METERS GROUPED ON METER HEADERS” STANDARD. © 1998 - 2022 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 03/29/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG6.2 2 OF 2

SIGNIFICANT REVISIONS LIST

PAGE SUBJECT 002 GENERAL INFORMATION ALPHABETICAL SUBJECT INDEX 003 DEFINITIONS OF TERMS 004 GENERAL INFORMATION 005 LISTING OF LOCKSMITHS AUTHORIZED TO SELL SCHLAGE RESTRICTED VTQP QUAD SECTION KEYWAYS AND THE SDG&E RESTRICTED SCHLAGE PRIMUS VHLK KEYWAY 006 UTILITY’S CONTRIBUTION TO FAULT CURRENT 007 SDG&E TRANSFORMER FUSING INFORMATION 008 UTILITY’S CONTRIBUTION TO FAULT CURRENT – SECONDARY VOLTAGE SERVICE EXAMPLES 009 TRANSFORMER VAULTS 010 TESTING REQUIREMENTS FOR METAL-ENCLOSED SERVICE ENTRANCE AND UNMETERED FEEDER BUSWAYS 011 ELECTRIC SERVICE POLICIES – NEW AND EXISTING CUSTOMERS 012 ELECTRIC SERVICE POLICIES – NEW PROJECT TYPES 013 ELECTRIC SERVICE POLICIES – EXISTING CUSTOMER 014 ELECTRIC SERVICE POLICIES – EXISTING CUSTOMER FEEDER EXCEPTIONS 015 LINE TRUCK ACCESS REQUIREMENTS 016 PULLING DEVICES FOR INSTALLATION OF SERVICE LATERAL CONDUCTORS IN PARKING STRUCTURES 017 PLAQUE SPECIFICATIONS AND EXAMPLES 018 MEDIUM-VOLTAGE CONDUCTOR CLEARANCES FOR NON-UTILITY WORKERS AND EQUIPMENT 019 CLEARANCES OF OVERHEAD FACILITIES FROM TANKS CONTAINING A FLAMMABLE OR EXPLOSIVE MIXTURE

020 PRODUCT DISTRIBUTORS 021 SERVICE ORDER TEAMS AND REGIONAL PROJECT MANAGEMENT OFFICES 022 PROJECT MANAGEMENT REGIONAL BOUNDARY MAP 023 FREQUENTLY REFERENCED STANDARDS 024 ALPHABETICAL SUBJECT INDEX © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B FORMATTING EDM JIK - - 05/22/2020 E A NEW PAGE - LSM LSM TPM 11/1/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG001.1 1 OF 1 GENERAL INFORMATION TABLE OF CONTENTS

SUBJECT PAGE ACCESSIBILITY..................................................................................................................................................................... 004.4 ACCESSIBLE METER LOCATIONS............................................................................................................................................ 005.1 ADDING LOAD TO EXISTING METER PANELS.......................................................................................................................... 004.2 ADDRESSING CONVENTIONS................................................................................................................................................. 004.5 BILLING ACCOUNT ESTABLISHMENT – APPLICATION FOR A BILLING ACCOUNT............................................................. 003.1, 004.2 CHARACTER OF SERVICE....................................................................................................................................................... 004.3

CLEARANCES OF OVERHEAD FACILITIES FROM TANKS CONTAINING FLAMMABLE OR EXPLOSIVE MIXTURE................................. 019 CLEARANCES, MEDIUM-VOLTAGE CONDUCTOR CLEARANCES FOR NON-UTILITY WORKERS & EQUIPMENT.................................. 018 CONNECTION OR DISCONNECTION OF SERVICE.................................................................................................................... 004.4 DEFINITIONS OF TERMS.......................................................................................................................................................... 003 ELECTRIC SERVICE POLICIES – EXISTING CUSTOMER REQUESTING ADDITIONAL SERVICES OR REMOTE METER LOCATIONS.................................................................................................................................................... 013 GENERAL SERVICE REQUIREMENT TO MULTIPLE MULTI-UNIT BUILDINGS ON A SINGLE PREMISES.................................. 013.1 MULTI-FAMILY RESIDENTIAL BUILDINGS – LESS THAN 3 STORIES HIGH.........................................................................

013.1 RESIDENTIAL CONTIGUOUS DWELLINGS – TOWNHOUSES (ROW HOMES)....................................................................... 013.1 RESIDENTIAL OR MIXED USE BUILDINGS – 3 STORIES OR GREATER............................................................................... 013.1 SINGLE PREMISES – MULTIPLE NON-RESIDENTIAL ENTERPRISES.................................................................................... 013.2 SINGLE PREMISES – MULTIPLE RESIDENTIAL CUSTOMERS.............................................................................................. 013.3 SINGLE PREMISES – SINGLE NON-RESIDENTIAL ENTERPRISE.......................................................................................... 013.2 SINGLE PREMISES – SINGLE RESIDENTIAL CUSTOMER WITH OTHER ELECTRIC USES....................................................... 013.3 ELECTRIC SERVICE POLICIES – EXISTING CUSTOMER FEEDER EXCEPTIONS................................................................................ 014

ELECTRIC SERVICE POLICIES – NEW AND EXISTING CUSTOMERS.............................................................................................. 011 ALTERNATE SERVICE DELIVERY POINT REQUESTS.......................................................................................................... 011.2 GENERAL INFORMATION................................................................................................................................................ 011.1 GENERAL REQUIREMENTS.............................................................................................................................................. 011.1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG002.1

1 OF 3 GENERAL INFORMATION ALPHABETICAL SUBJECT INDEX

SUBJECT PAGE RIGHTS OF WAY............................................................................................................................................................ 011.2 SECONDARY SERVING VOLTAGES AND CLASSIFICATION OF SERVICE INFORMATION....................................................... 011.3 SERVICE LOCATIONS..................................................................................................................................................... 011.2 ELECTRIC SERVICE POLICIES – NEW PROJECT TYPES................................................................................................................ 012 GENERAL SERVICE REQUIREMENT TO MULTIPLE MULTI-UNIT BUILDINGS ON A SINGLE PREMISES................................... 012.1 MULTI-FAMILY RESIDENTIAL BUILDINGS – LESS THAN 3 STORIES HIGH.......................................................................... 012.1 RESIDENTIAL CONTIGUOUS DWELLINGS – TOWNHOUSES (ROW HOMES)........................................................................ 012.1

RESIDENTIAL OR MIXED USE BUILDINGS – 3 STORIES OR GREATER............................................................................... 012.1 SINGLE PREMISES – MULTIPLE RESIDENTIAL CUSTOMERS.............................................................................................. 012.3 SINGLE PREMISES – SINGLE NON-RESIDENTIAL ENTERPRISE.......................................................................................... 012.2 SINGLE PREMISES – SINGLE RESIDENTIAL CUSTOMER WITH OTHER ELECTRIC USES....................................................... 012.3 SINGLE-PREMISES – MULTIPLE NON-RESIDENTIAL ENTERPRISES.................................................................................... 012.2 EQUIPMENT RESPONSIBILITIES – CUSTOMER AND SDG&E..................................................................................................... 004.4 FAULT CURRENT, UTILITY’S CONTRIBUTION............................................................................................................................ 006

FAULT CURRENT, UTILITY’S CONTRIBUTION – SECONDARY VOLTAGE SERVICE EXAMPLES......................................................... 008 GAS AND ELECTRIC METER ACCESS....................................................................................................................................... 005.1 GENERAL INFORMATION.......................................................................................................................................................... 004 INACCESSIBLE METER LOCATIONS......................................................................................................................................... 005.1 LINE TRUCK ACCESS REQUIREMENTS....................................................................................................................................... 015 LOCKSMITHS, LISTING OF......................................................................................................................................... 005.1 – 005.2

MARKOUT SERVICE............................................................................................................................................................... 004.5 MEDIUM-VOLTAGE CONDUCTOR CLEARANCES FOR NON-UTILITY WORKERS AND EQUIPMENT................................................... 018 PERMIT AND INSPECTION..................................................................................................................................................... 004.2 PLAQUE SPECIFICATIONS AND EXAMPLES.................................................................................................................................. 017 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG002.2

2 OF 3 GENERAL INFORMATION ALPHABETICAL SUBJECT INDEX

SUBJECT PAGE PRODUCT DISTRIBUTORS........................................................................................................................................................ 020 PULLING DEVICES FOR INSTALLATION OF SERVICE LATERAL CONDUCTORS IN PARKING STRUCTURES...................................... 016 PURPOSE.............................................................................................................................................................................. 004.1 REQUEST FOR SERVICE......................................................................................................................................................... 004.2 SAMPLE PLAQUE FOR ELECTRICAL EQUIPMENT LABELS.......................................................................................................... 017.1 SCOPE.................................................................................................................................................................................. 004.1

SDG&E TRANSFORMER FUSING INFORMATION....................................................................................................................... 007.1 SEALING OF METER AND SERVICE FACILITIES........................................................................................................................ 004.4 SECONDARY FAULT CURRENT CALCULATIONS............................................................................................................ 006.1 – 006.2 SECONDARY SERVING VOLTAGES AND CLASSIFICATION OF SERVICE INFORMATION............................................................... 011.3 SERVICE DELIVERY POINT POLICY......................................................................................................................................... 011.1 SERVICE PLANNING............................................................................................................................................................... 004.1 TESTING REQUIREMENTS FOR METAL-ENCLOSED SERVICE ENTRANCE AND UNMETERED FEEDER BUSWAYS............................... 010

TRANSFORMER FUSING INFORMATION, SDG&E........................................................................................................................ 007 TRANSFORMER VAULTS........................................................................................................................................................... 009 TRENCH INSPECTIONS.......................................................................................................................................................... 004.5 TYPICAL PLAQUE FOR EXISTING BUILDINGS WITH INTERMIXED SERVICES............................................................................. 017.3 TYPICAL PLAQUE FOR NEW BUILDINGS OR EXISTING BUILDINGS WITH SEPARATE SERVICE AREAS......................................... 017.2 UTILITY’S CONTRIBUTION TO FAULT CURRENT.......................................................................................................... 006.1 – 006.2 UTILITY'S CONTRIBUTION TO FAULT CURRENT – SECONDARY VOLTAGE SERVICE EXAMPLES.................................................... 008

WORK ON UTILITY-OWNED POLES......................................................................................................................................... 004.4 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG002.3 3 OF 3 GENERAL INFORMATION ALPHABETICAL SUBJECT INDEX

SCOPE: THIS STANDARD DEFINES THE VARIOUS TERMS USED IN THE SERVICE STANDARDS AND GUIDE MANUAL. DEFINITIONS: • APPROVED: ACCEPTABLE AND IN CONFORMANCE WITH SDG&E’S (UTILITY’S) RULES AND POLICIES AND GOVERNMENTAL AUTHORITIES’ HAVING JURISDICTION (AHJ’S) LAWS, CODES, AND ORDINANCES. • BILLING ACCOUNT ESTABLISHMENT: A REQUEST TO THE UTILTY FOR ELECTRIC AND/OR GAS SERVICE AS DISTINGUISHED FROM AN INQUIRY AS TO THE AVAILABILITY OF OR CHANGES FOR SUCH SERVICE. CONTACT THE UTILITY’S CUSTOMER CONTACT CENTER AT 1-800-411-7343, TO “MAKE APPLICATION” FOR A BILLING ACCOUNT AS SOON AS THE STREET ADDRESS HAS BEEN ASSIGNED BY THE AHJ. • BUILDING: NORMALLY A STRUCTURE WHICH STANDS ALONE AND IS USED OR INTENDED FOR SUPPORTING OR SHELTERING ANY USE OR OCCUPANCY. WHENEVER THERE IS A QUESTION WHETHER OR NOT THE STRUCTURE IS A SEPARATE BUILDING, THE APPROPRIATE AHJ SHALL MAKE THAT DETERMINATION. • CUSTOMER GENERATION: PRODUCTION OF ELECTRICAL ENERGY NOT GENERATED BY THE UTILITY. • FINAL GRADE: THE GRADE AFTER PAVING OR IMPROVEMENTS HAVE BEEN COMPLETED.

• GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ): SEE INSPECTION AUTHORITY. • INSPECTION AUTHORITY: AN AGENCY RESPONSIBLE FOR ISSUING PERMITS, MAKING INSPECTIONS OF THE CUSTOMER’S ELECTRICAL WIRING SYSTEM (PREMISES WIRING), AND NOTIFYING THE UTILITY THAT SUCH WIRING AND SYSTEM COMPONENTS MEET THE CRITERIA ENFORCED BY THE AGENCY. INSPECTION AUTHORITIES INCLUDE CITY, COUNTY, STATE, AND FEDERAL AGENCIES, INDIAN RESERVATIONS AUTHORIZED TO MAKE ELECTRICAL INSPECTIONS, APPROPRIATE SECTIONS OF SCHOOL, PORT, TRANSIT, AND WATER DISTRICTS AND OTHER ENTITIES WITH LEGAL JURISDICTION OVER PREMISES WIRING. • METER ROOM: A WEATHERPROOF, ILLUMINATED ROOM PROVIDED BY THE CUSTOMER AT THEIR OPTION AND APPROVED BY SDG&E FOR THE LOCATION OF ELECTRIC METERING EQUIPMENT. • METER SEQUENCE: THE SEQUENTIAL RELATIONSHIP BETWEEN THE SERVICE SWITCH AND THE UTILITY’S BILLING METER IN A SERIES ARRANGMENT. • HOT SEQUENCE: A METER-SWITCH-FUSE SEQUENCE. • COLD SEQUENCE: A SWITCH-FUSE-METER-SEQUENCE. • METERED CIRCUITS: THOSE CONDUCTORS EXTENDED FROM THE METER AND OTHER SERVICE EQUIPMENT TO THE LOADS OR

OUTLETS CONNECTED TO SUCH CIRCUITS. METERED CIRCUITS ARE NOT PERMITTED TO SERVCE ANOTHER PREMISE. • PREMISES: ALL OF THE REAL PROPERTY AND APPARATUS EMPLOYED IN A SINGLE ENTERPRISE ON AN INTEGRAL PARCEL OF LAND UNDIVIDED, EXCEPT IN THE CASE OF INDUSTRIAL, AGRICULTURAL, OIL FIELDS, RESORT ENTERPRISES AND PUBLIC OR QUASI- PUBLIC INSTITUTIONS DIVIDED BY A DEDICATED STREET, HIGHWAY, OR OTHER PUBLIC THOROUGHFARE, OR A RAILWAY. AUTOMOBILE PARKING LOTS CONSITUTING A PART OF, AND ADJACENT TO, A SINGLE ENTERPRISE MAY BE SEPARATED BY AN ALLEY FROM THE REMAINDER OF THE PREMISES SERVED. • PREMISES - AGRICULTURAL: REAL PROPERTY USED FOR AGRICULTURAL PURPOSES WHERE SPRINKLERS, SPRAYERS, PORTABLE IRRIGATION PIPE, ETC. ARE USED, INCLUDING PROPERTY IN AN AGRICULTURAL AREA NOT UNDER CULTIVATION, WHICH IS CAPABLE OF BEING TRAVERSED BY VEHICLES OR AGRICULTURAL EQUIPMENT. • PREMISES - COMMERCIAL: REAL PROPERTY FROM WHICH SERVICES ARE OFFERED AND RENDERED TO THE PUBLIC, OR FROM WHICH PRODUCTS ARE SOLD AND DISTRIBUTED FOR GAIN, INCLUDING PREMISES WHERE RESIDENTIAL UNITS ARE COMBINED

WITH COMMERCIAL ENTERPRISES. FOR RESIDENTIAL LIVING UNITS EXCEEDING TWO IN NUMBER ON THE SAME PREMISES, SEE “PREMISES-RESIDENTIAL.” • PREMISES - IDENTIFICATION: APPROVED NUMBERS OR ADDRESSES TO BE PLACED FOR ALL NEW BUILDINGS OR STRUCTURES IN SUCH A POSITION AS TO BE PLAINLY VISIBLE AND LEGIBLE FROM THE STREET OR ROAD FRONTING THE PROPERTY. • PREMISES - INDUSTRIAL: REAL PROPERTY UPON WHICH AN ENTERPRISE IS ENGAGED IN PROCESSSING OR MANUFACTURING RAW OR UNFINISHED MATERIALS INTO ANOTHER FORM OR PRODUCT. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B 2022 FORMAT UPDATE ARC JIK IPJ KRG 09/29/2022 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG003.1 1 OF 3 DEFINITIONS OF TERMS

• PREMISES - RESIDENTAL: REAL PROPERTY USED SOLEY FOR RESIDENTIAL PURPOSES AND COMPLYING WITH THE FOLLOWING PROVISIONS: I. PREMISES FROM WHICH SERVICES ARE NOT OFFERED OR RENDERED TO THE PUBLIC, OR FROM WHICH PRODUCTS ARE NOT COMMERCIALLY PRODUCED, SOLD, OR DISTRIBUTED FOR GAIN. II. PREMISES UPON WHICH ANY COMBINATION OF RESIDENTIAL LIVING UNITS DOES NOT EXCEED TWO IN NUMBER, WHETHER ON ONE LEVEL OR MORE. RESIDENTIAL LIVING UNITS EXCEEDING TWO IN NUMBER ON THE SAME PREMIS ES ARE CLASSIFIED AS A COMMERICAL ENTERPRISE AND COMMERCIAL PREMISES REQUIRING COMMERICAL SERVICE DROP CLEARANCES; HOWEVER, METERING PROVISIONS FOR INDIVIDUAL LIVING UNITS SHALL COMPLY WITH RESIDENTIAL REQUIREMENTS. a • PULL BOX: A SUBSURFACE BOX, USUALLY CONCRETE, USED FOR PULLING OR SPLICING UTILITY CABLES. ALSO KNOWN AS A HANDHOLE. (NOT TO BE USED TO TERMINATE CUSTOMER’S SERVICE ENTRANCE CONDUCTORS.) • PULL CAN: A WALL-MOUNTED ENCLOSURE USED FOR PULLING, ROUTING, OR CONNECTING THE UTILITY’S SERVICE CONDUCTORS TO THE CUSTOMER’S SERVICE EQUIPMENT.

• PULL SECTION: AN UNDERGROUND PULL SECTION (UGPS) IS A SEPARATE COMPARTMENT OF A FREESTANDING, METAL OR METALCLAD SWITCHBOARD, WHICH IS USED FOR CONNECTING THE UTILITY’S SERVICE CONDUCTORS TO THE CUSTOMER’S SERVICE EQUIPMENT. • READILY ACCESSIBLE: CAPABLE OF BEING REACHED QUICKLY AND CONVENIENTLY 24 HOURS A DAY FOR CONSTRUCTION, OPERATION, MAINTENANCE, INSPECTION, TESTING, OR READING, WITHOUT REQUIRING THOSE SEEKING ACCESS TO CLIMB OVER OR REMOVE OBSTACLES, OR TO OBTAIN SPECIAL PERMISSION OR SECURITY CLEARANCES. • SERVICE DELIVERY POINT: THE POINT OF CONNECTION OF THE UTILITY’S SERVICE CONDUCTORS AND THE CUSTOMER’S SERVICE ENTRANCE CONDUCTORS. • SERVICE DROP CONDUCTORS: THE UTILITY’S OVERHEAD CONDUCTORS EXTENDING FROM ITS POLE LINE TO THE POINT OF SERVICE DROP SUPPORT ON A BUILDING OR STRUCTURE. • SERVICE ENTRANCE CONDUCTORS - OVERHEAD: THE CUSTOMER’S CONDUCTORS OR BUS BARS EXTENDING FROM THE SERVICE EQUIPMENT TO THE POINT OF CONNECTION TO THE UTILITY’S SERVICE DROP CONDUCTORS. • SERVICE ENTRANCE CONDUCTORS - UNDERGROUND: ALL CONDUCTORS OR BUS BARS INSTALLED BY THE CUSTOMER

BEYOND AND INCLUDING THE POINT OF CONNECTION TO THE UTILITY’S SERVICE LATERAL CONDUCTORS. • SERVICE LATERAL: THE UNDERGROUND SERVICE LATERAL CONDUCTORS IN THE CUSTOMER’S CONDUIT, INSTALLED BY THE UTILITY FROM THE DESIGNATED SOURCE TO THE POINT OF CONNECTION WITH THE CUSTOMER’S SERVICE ENTRANCE CONDUCTORS. • SERVICE POINT: THE POINT OF CONNECTION BETWEEN THE FACILITIES OF THE SERVING UTILITY AND THE PREMISES WIRING. • SHALL AND WILL: THROUGHOUT THIS SERVICE STANDARDS & GUIDES, "SHALL" AND "WILL" ARE USED TO INDICATE THE MORE RIGID REQUIREMENTS OF THE UTILITY OR AHJ. • SHOULD AND MAY: THROUGHOUT THIS SERVICE STANDARDS & GUIDES, "SHOULD" AND "MAY" ARE USED TO INDICATE RECOMMENDATIONS, OR THAT WHICH IS ADVISED BUT NOT NECESSARILY REQUIRED. • SINGLE ENTERPRISE: A SEPARATE BUSINESS OR OTHER INDIVIDUAL ACTIVITY CARRIED ON BY A CUSTOMER. THE TERM DOES NOT APPLY TO ASSOCIATIONS OR COMBINATIONS OF CUSTOMERS. ONE PERSON MAY BE CONDUCTING SEVERAL ACTIVITES OF WHICH ONE ACTIVITY MAY BE A SINGLE ENTERPRISE.

• SUBMETERS: CUSTOMER-FURNISHED, -INSTALLED, -OWNED, AND -MAINTAINED METERS BEHIND A MASTER UTILITY METER. RESIDENTIAL SUBMETERS MAY BE PERMITTED IN CERTAIN SPECIAL CIRCUMSTANCES. SUBMETERING OF NON-RESIDENTIAL SERVICE IS PROHIBITED. • TERMINATING ENCLOSURE: A UTILITY-APPROVED PULL CAN OR PULL SECTION AT THE SERVICE DELIVERY POINT FOR CONNECTING THE UTILITY’S UNDERGROUND SERVICE LATERAL CONDUCTORS AND THE CUSTOMER’S SERVICE ENTRANCE CONDUCTORS. b c © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B 2022 FORMAT UPDATE ARC JIK IPJ KRG 09/29/2022 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG003.2 2 OF 3 DEFINITIONS OF TERMS

• UTILITY METERS: UTILITY-FURNISHED, -INSTALLED, -OWNED, AND -MAINTAINED METERS USED TO MEASURE CONSUMPTION FOR BILLING PURPOSES. • UTILITY’S OPERATING CONVENIENCE: THE UTILIZATION, UNDER CERTAIN CIRCUMSTANCES, OF FACILITIES OR PRACTICES NOT ORDINARILY EMPLOYED WHICH CONTRIBUTE TO THE OVERALL EFFICIENCY OF THE UTILITY’S OPERATIONS. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: a FOR UTILITY’S CONTRIBUTION TO FAULT CURRENT VALUES, SEE SG006. b FOR 0-600V TERMINATING ENCLOSURES, SEE SG703. c FOR SWITCHGEAR UNDERGROUND SERVICE TERMINATING PULL SECTIONS, SEE SG608. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B 2022 FORMAT UPDATE ARC JIK IPJ KRG 09/29/2022 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG003.3 3 OF 3

SCOPE: THIS STANDARD PROVIDED GENERAL INFORMATION REGARDING THE SERVICE STANDARDS AND GUIDE MANUAL. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: PURPOSE: I. SAN DIEGO GAS ELECTRIC COMPANY (SDG&E) IS AN INVESTOR-OWNED UTILITY COMMITTED TO BUILDING THE CLEANEST, SAFEST AND MOST RELIABLE ENERGY COMPANY IN AMERICA AND PROVIDING THE BEST POSSIBLE SERVICE TO ITS CUSTOMERS IN THE COMPANY’S 4,105 SQUARE MILE SERVICE AREA. II. THE SERVICE STANDARDS & GUIDE CONTAINS INFORMATION ESSENTIAL TO THE ESTABLISHMENT OF SERVICE TO NEW FACILITIES, OR TO REMODELED OR EXPANDED FACILITIES WHERE LOAD HAS BEEN ADDED. THIS INFORMATION IS INTENDED FOR USE BY ALL INTERESTED CUSTOMERS AND PARTICULARLY BY MEMBERS OF TECHNICAL AND PROFESSIONAL TRADES CONCERNED WITH THE DESIGN AND BUILDING OF FACILITIES TO RECEIVE SERVICE FROM SDG&E'S SYSTEM. SCOPE: III. THE SERVICE STANDARDS & GUIDE PRESENTS GENERAL AND DETAILED INFORMATION TO HELP ENSURE THAT A SERVICE INSTALLATION WILL BE ADEQUATE FOR PRESENT AND FUTURE POWER NEEDS. THE MANUAL SEEKS TO OUTLINE SERVICE

REQUIREMENTS IN ACCORDANCE WITH THE REGULATIONS OF THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) WHO WILL INSPECT THE SERVICE CONNECTION PRIOR TO PERMITTING THE UTILITY TO ESTABLISH SERVICE. IV. THE SERVICE STANDARDS ARE BASICALLY FOUNDED UPON STANDARDS OF GOOD SAFETY PRACTICES AND ELECTRICAL CODES ENFORCED BY THE AHJ’S IN THE UTILITY’S SERVICE AREA. WE HAVE ENDEAVORED TO BRING THEM ALL TOGETHER IN A SINGLE, CONVENIENT FORM FOR EASY USE. V. REFERENCES ON WHICH THIS MANUAL IS BASED: a b c d e VI. THE CONTENTS OF THE SERVICE STANDARDS & GUIDE ARE TAKEN FROM A NUMBER OF AUTHORITATIVE SOURCES, AND SINCE THEY ARE COMPILED IN A FORM WE BELIEVE WILL BEST SUIT YOUR INTERESTS, WE HAVE AVOIDED PRECISE FOOTNOTING OF REFERENCES. VII. WHEN AN UNUSUAL SITUATION CONFRONTS YOU, ONE THAT DOES NOT APPEAR TO BE SPELLED-OUT SPECIFICALLY IN THIS MANUAL, PLEASE CONTACT YOUR PROJECT PLANNER OR SERVICE STANDARDS FOR CLARIFICATION. VIII. DESIGN AND PROJECT MANAGEMENT AND THE SERVICE ORDER TEAMS ARE THE SPECIAL DEPARTMENTS THAT WILL ANSWER

YOUR INDIVIDUAL QUESTIONS AND AID YOU IN THE DESIGN AND CONSTRUCTION OF SERVICE CONNECTIONS. f IX. THE PROJECT PLANNER WILL MEET WITH YOU TO DISCUSS YOUR PARTICULAR PROJECT, AND WORK OUT A SOLUTION WHICH WILL BE SATISFYING FOR YOU AND FOR THE FUTURE CUSTOMERS THE UTILITY WILL SERVE WITH SAFE AND RELIABLE ENERGY. SERVICE PLANNING: XI. PLEASE BE ADVISED THAT WHENEVER DESIGN OF ELECTRICAL PLANS IS CONSIDERED FOR A COMMERCIAL, INDUSTRIAL OR RESIDENTIAL STRUCTURE, CONTACT THE UTILITY AS SOON AS POSSIBLE FOR THE FOLLOWING REASONS: a. THE UTILITY WILL WORK WITH YOU TO ESTABLISH THE SERVING VOLTAGE AND AN ACCEPTABLE METER AND SERVICE LOCATION. b. EARLY DISCUSSION OF THE PROJECT WILL ENABLE THE UTILITY TO DETERMINE THE MOST FAVORABLE RATE SCHEDULE FOR THE CUSTOMER, AND PROVIDE THE UTILITY THE ABILITY TO MEET YOUR CONSTRUCTION SCHEDULE. c. YOU CAN PREVENT THE UNNECESSARY EXPENSE OF REDESIGN, CONSTRUCTION CHARGES, OR DELAYS BY NOT ASSUMING THE TYPE OF SERVICE THE UTILITY WILL PROVIDE. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B EDITORIAL CHANGES ARC IPJ IPJ KRG 12/06/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG004.1 1 OF 6 GENERAL INFORMATION

NOTES (CONT’D): REQUEST FOR SERVICE: g h XII. AT THE TIME OF THIS INITIAL CONTACT, SIMPLY PROVIDE THE FOLLOWING INFORMATION: a. STREET ADDRESS AND LEGAL DESCRIPTION OF THE PROPERTY, AND b. PLOT, GRADING, ELEVATION, AND SITE IMPROVEMENT PLANS XIII. AVAILABLE FORMS INCLUDE THE FOLLOWING: a. REQUEST FOR SERVICE – RESIDENTIAL SINGLE-FAMILY DWELLING b. REQUEST FOR SERVICE – RESIDENTIAL SUBDIVISION/DEVELOPMENT c. REQUEST FOR SERVICE – RESIDENTIAL COMMERCIAL/INDUSTRIAL DEVELOPMENT XIV. ALSO, YOU MAY UTILIZE THE REGIONAL SDG&E CONTACTS. f ADDING LOAD TO EXISTING METER PANELS: i XV. EXISTING CUSTOMERS RECEIVING ELECTRIC SERVICE AT 480V, OR LESS, SHALL PROVIDE WRITTEN NOTIFICATION TO THE UTILITY A MINIMUM OF 30 DAYS IN ADVANCE OF CONNECTING ALL NEW ELECTRIC LOADS WITH A RATING OF 20KW, OR GREATER, OR SMALLER LOADS ADDED OVER A 12-MONTH PERIOD OF TIME WITH AGGREGATE RATINGS TOTALING 20KW, OR GREATER. XVI. EXISTING CUSTOMERS RECEIVING ELECTRIC SERVICE AT OVER 480V SHALL PROVIDE WRITTEN NOTIFICATION TO THE UTILITY A

MINIMUM OF 30 DAYS IN ADVANCE OF CONNECTING ALL NEW ELECTRIC LOADS WITH A RATING OF 200KW, OR GREATER, OR SMALLER LOADS ADDED OVER A 12-MONTH PERIOD OF TIME WITH AGGREGATE RATINGS TOTALING 200KW, OR GREATER. XVII. IT IS THE CUSTOMER'S RESPONSIBILITY TO NOTIFY THE UTILITY, IN WRITING, WITHIN 15 DAYS IF THE CUSTOMER MAKES ANY CHANGE IN THE CONNECTED LOAD, OR THE SIZE OR CHARACTER OF THEIR APPLIANCES OR APPARATUS. SUCH CHANGES MAY REQUIRE A NEW APPLICATION FOR SERVICE AND/OR A CHANGE IN THE UTILITY’S SERVICE FACILITIES. APPLICATION FOR A BILLING ACCOUNT: XVIII. THE INITIAL CONTACT WITH THE UTILITY FOR METER AND SERVICE REQUIREMENTS IS NOT AN APPLICATION FOR SERVICES. THERE IS ANOTHER SIMPLE STEP WHICH IS TAKEN CARE OF THROUGH A SEPARATE CHANNEL AT SDG&E. AN APPLICATION FOR A BILLING ACCOUNT MUST BE MADE BEFORE SERVICE CAN BE ESTABLISHED. APPLICATIONS CAN USUALLY BE MADE BY TELEPHONE. THIS SHOULD BE DONE AT THE TIME OF INITIAL CONTACT OR SHORTLY THEREAFTER TO AVOID DELAYS IN ESTABLISHING SERVICE. j PERMIT & INSPECTION: XIX.

PRIOR TO SERVICE BEING ENERGIZED, AN INSPECTION BY THE AHJ IS REQUIRED. ALL ENERGY CONSUMPTION MUST BE METERED. XX. BRIEFLY, THE STEPS ARE: a. AN ELECTRICAL PERMIT IS OBTAINED FROM THE APPROPRIATE AHJ BY THE CONTRACTOR OR OTHER QUALIFIED PERSON. b. WIRING FOR THE FACILITY IS COMPLETED BY AN ELECTRICIAN OR OTHER QUALIFIED PERSON. c. INSPECTION OF THE INSTALLATION IS MADE BY THE AHJ WHO NOTIFIES THE UTILITY OF ACCEPTANCE. d. THE INSTALLATION IS CLEARED TO THE UTILITY. e. THE UTILITY CONNECTS TO THE CUSTOMER’S SERVICE EQUIPMENT AND SETS THE METER. XXI. MODIFICATIONS, ALTERATIONS, OR RE-ESTABLISHMENT OF ELECTRIC SERVICE MAY REQUIRE AN INSPECTION CLEARANCE BY THE AHJ. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B EDITORIAL CHANGES ARC IPJ IPJ KRG 12/06/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D

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NOTES (CONT’D): CHARACTER OF SERVICE: XXII. SERVICE SUPPLIED THROUGHOUT THE UTILITY’S SERVICE AREA IS ALTERNATING CURRENT AT A FREQUENCY OF APPROXIMATELY 60 CYCLES PER SECOND, AND AT THE NORMAL VOLTAGE AVAILABLE AT ANY SPECIFIC LOCATION ON THE DISTRIBUTION SYSTEM. A DETAILED DESCRIPTION OF SERVICE IS OUTLINED IN RULE 2 OF THE COMPANY'S RULES FOR THE SALE OF ELECTRIC ENERGY, AS FILED WITH THE CALIFORNIA PUBLIC UTILITIES COMMISSION. k XXIII. SINGLE-FAMILY RESIDENCES ON INDIVIDUAL LOTS AND MOST SMALL COMMERCIAL LOADS ARE NORMALLY SERVED BY A 3-WIRE, SINGLE-PHASE, 120/240V SERVICE. MULTI-FAMILY RESIDENTIAL DEVELOPMENTS, INDUSTRIAL LOADS, SUBSTANTIAL COMMERCIAL LOADS AND THREE-PHASE LOADS USUALLY REQUIRE SPECIAL ENGINEERING STUDIES TO ESTABLISH THE SERVING VOLTAGE, AND SHOULD BE REFERRED TO THE NEAREST SDG&E OFFICE AT AN EARLY PLANNING STAGE. XXIV. SERVICE STANDARDS AND THE APPROPRIATE AHJ MAY APPROVE A 2-WIRE, SINGLE-PHASE, 120V WHERE THE LOAD DOES NOT EXCEED ONE 15A AND ONE 20A BRANCH CIRCUIT. XXV.

A 4-WIRE, THREE-PHASE, 208Y/120V SERVICE MAY BE PROVIDED TO MULTI-FAMILY BUILDINGS; HOWEVER, THE INDIVIDUAL OCCUPANCIES MUST BE SERVED AND METERED SINGLE-PHASE, 200A MAXIMUM. IN MIXED-USE BUILDINGS, COMMERCIAL SERVICE MAY BE METERED SINGLE-PHASE, 200A MAXIMUM. XXVI. THREE-PHASE, 480V SERVICE FROM AN OVERHEAD TRANSFORMER STATION, WHERE AVAILABLE, IS SUPPLIED 3-WIRE, DELTA- CONNECTED, WITH B-PHASE GROUNDED AND A SEPARATE 4TH WIRE SERVICE GROUND CONDUCTOR (REDUNDANT GROUND, NOT A "NEUTRAL"). XXVII. ALL CUSTOMER REQUESTS FOR 480V SERVICE FROM A PADMOUNT TRANSFORMER WILL BE SERVED THREE-PHASE, 4-WIRE, 480Y/277V. XXVIII. THREE-WIRE, SINGLE-PHASE 240/480V SERVICE IS AVAILABLE, 200A MAXIMUM. THIS IS TYPICALLY PROVIDED FOR HIGH-POWER LIGHTING LOADS, SUCH AS CALTRANS HIGHWAY LIGHTING SYSTEMS. XXIX. ALL CUSTOMERS ON THE UTILITY’S ELECTRIC DISTRIBUTION SYSTEM ARE OCCASIONALLY SUBJECTED TO MOMENTARY FLUCTUATIONS IN SERVING VOLTAGE. THESE ARE CAUSED BY DISTURBANCES SUCH AS LIGHTING SURGES AND SHORT CIRCUITS, AND ARE IMPOSSIBLE TO PREVENT.

ANY CUSTOMER HAVING OR PLANNING TO INSTALL VOLTAGE-SENSITIVE EQUIPMENT (SUCH AS SOLID-STATE CONTROLS) WHICH CANNOT OVERRIDE MOMENTARY VOLTAGE FLUCTUATIONS SHOULD CONSIDER INSTALLING SPECIALLY DESIGNED PROTECTIVE APPARATUS AS PART OF THEIR OWN ELECTRICAL SYSTEM. XXX. MAXIMUM SERVICE PANEL SIZE ALLOWED TO BE SERVED BY A 120/240V, 3-PHASE DELTA TRANSFORMER INSTALLATION (OVERHEAD OR UNDERGROUND) IS 600A. XXXI. MAXIMUM SERVICE PANEL SIZE ALLOWED TO BE SERVED BY AN OVERHEAD 480V, 3-PHASE DELTA TRANSFORMER INSTALLATION IS 600A. EQUIPMENT RESPONSIBILITIES: XXXII. CUSTOMER: THE CUSTOMER IS TO PROVIDE AND INSTALL THEIR OWN SERVICE EQUIPMENT. THIS INCLUDES, BUT IS NOT LIMITED TO, THE FOLLOWING EQUIPMENT: a. SERVICE ENTRANCE CONDUCTORS (NO. 8 AWG MINIMUM FOR OVERHEAD SERVICES) b. SERVICE TERMINATING EQUIPMENT c. SERVICE SWITCHES AND CIRCUIT BREAKERS d. FUSES e. METER SOCKETS AND A STAINLESS STEEL OR ALUMINUM RETAINER (FLIMSY) RING FOR EACH SOCKET f. METER AND INSTRUMENT TRANSFORMER HOUSINGS g. SERVICE SWITCHBOARDS AND ASSOCIATED DEVICES h. OTHER RELATED EQUIPMENT AS REQUIRED BY THE UTILITY

© 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B EDITORIAL CHANGES ARC IPJ IPJ KRG 12/06/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG004.3 3 OF 6 GENERAL INFORMATION

NOTES (CONT’D): EQUIPMENT RESPONSIBILITIES (CONT’D): XXXIII. AFTER THE CUSTOMER HAS INSTALLED THEIR EQUIPMENT IN ACCORDANCE WITH THE REQUIREMENTS OF THE APPROPRIATE AHJ AND THE UTILITY, THE CUSTOMER WILL BE RESPONSIBLE FOR ITS MAINTENANCE. XXXIV. UTILITY: ALL METERS, METERING TRANSFORMERS, TEST SWITCHES, AND OTHER ASSOCIATED METERING EQUIPMENT WILL BE PROVIDED, INSTALLED, OWNED, AND MAINTAINED BY THE UTILITY IN ACCORDANCE WITH OUR FILED RULE 16. l XXXV. CUSTOMER RESPONSIBILITY TO MEET SERVICE STANDARDS REQUIREMENTS: MEETING THE SERVICE EQUIPMENT REQUIREMENTS SET BY THE SDG&E SERVICE STANDARDS & GUIDE IS A CONDITION OF RECEIVING SERVICE. AVOID TURN DOWNS THAT COST THE BUILDER EXTRA TIME AND RESOURCES. IF SERVICE EQUIPMENT MEETING STANDARD CANNOT BE FOUND TO COMPLETE A PROJECT AND ALTERNATIVES THAT DO NOT MEET STANDARD ARE BEING CONSIDERED, CONSULT WITH YOUR SDG&E PROJECT PLANNER FIRST. CONNECTION OR DISCONNECTION OF SERVICE: XXXVI. THE UTILITY WILL BE RESPONSIBLE FOR ANY CONNECTION OR DISCONNECTION OF SERVICE BETWEEN COMPANY POWER LINES AND CUSTOMER-OWNED FACILITIES.

ONLY AUTHORIZED EMPLOYEES OR AGENTS OF THE COMPANY ARE PERMITTED TO DO THIS WORK. ARRANGEMENTS MAY BE MADE FOR THIS WORK TO BE DONE ON A SPECIFIC DAY. IT IS ADVISED TO GIVE AS MUCH ADVANCE NOTICE AS POSSIBLE FOR A TURN-ON OR SHUT-OFF OF SERVICE. WORK ON UTILITY-OWNED POLES: XXXVII. BECAUSE OF SAFETY RULES AND SPECIAL TRAINING REQUIRED, PROPERLY QUALIFIED UTILITY LINEMEN ARE THE ONLY PERSONS PERMITTED TO CLIMB THE UTILITY’S POLES. SEALING OF METER & SERVICE FACILITIES: XXXVIII. THE UTILITY WILL SEAL ALL SERVICE RACEWAYS, PULL CANS, PULL SECTIONS, METERING COMPARTMENTS WITH DOORS OR REMOVABLE COVERS, METERS, TEST SWITCHES, AND OTHER FACILITIES FOR SERVICE AND METERING INSTALLATIONS. THE SEAL IS A BOND OF MUTUAL PROTECTION FOR THE UTILITY AND FOR THE CUSTOMER. AS SUCH, IT MAY NOT BE BROKEN BY ANYONE BUT AN AUTHORIZED REPRESENTATIVE OF THE UTILITY. m XXXIX. IF IT BECOMES NECESSARY FOR ANY PERSON TO BREAK A SEAL FOR ANY LEGITIMATE REASON, THEY SHALL SECURE PERMISSION TO DO SO BY CALLING THE NEAREST DESIGN & PROJECT MANAGEMENT REGIONAL OFFICE. f ACCESSIBILITY: XL.

IN THE EXPRESS INTERESTS OF PROVIDING THE BEST POSSIBLE ELECTRIC SERVICE TO ALL CUSTOMERS, THE UTILITY MUST HAVE IMMEDIATE 24-HOUR ACCESS TO THEIR FACILITIES LOCATED ON THE CUSTOMER'S PREMISES. THE UTILITY MAKES EVERY EFFORT TO DO OUR WORK WITH THE LEAST INCONVENIENCE TO THE CUSTOMER. XLI. WHEN A SERVICE CONNECTION IS TERMINATED, THE UTILITY MUST REMOVE ITS PROPERTY FROM THE PREMISES. XLII. ELECTRICALLY OPERATED GATES, WHICH DO NOT PERMIT IMMEDIATE 24-HOUR ACCESS TO ELECTRIC AND GAS FACILITIES FOR SDG&E AND LOCAL FIRE DEPARTMENT PERSONNEL, COULD POSE A SAFETY HAZARD. IF AN ELECTRICALLY OPERATED SECURITY GATE IS TO BE INSTALLED, THE CUSTOMER IS RESPONSIBLE FOR INSTALLING AN SDG&E RESTRICTED SCHLAGE PRIMUS VHLK KEYWAY IN A KEY SWITCH WIRED TO THE GATE CONTROLLER. THE KEY SWITCH SHOULD BE LOCATED IN A HOUSING THAT ALLOWS AN AUTHORIZED UTILITY EMPLOYEE, OR AUTHORIZED AGENT, TO DRIVE UP AND INSERT THEIR KEY IN THE CYLINDER TO ACTIVATE THE GATE CONTROLLER WITHOUT HAVING TO LEAVE THEIR VEHICLE. IF SITE CONDITIONS MAKE THIS

REQUIREMENT IMPRACTICAL, CONTACT SDG&E'S PROJECT PLANNER FOR APPROVAL OF AN ALTERNATE LOCATION. YOU SHOULD CONTACT THE FIRE DEPARTMENT WHICH SERVICES YOUR AREA TO OBTAIN THEIR REQUIREMENTS. THE CUSTOMER IS ALSO REQUIRED TO PROVIDE A MEANS OF OPENING THE GATE FROM THE INSIDE WITHOUT THE USE OF A VEHICLE TO ACTIVATE THE CONTROLLER. THIS MAY REQUIRE THE INSTALLATION OF AN ADDITIONAL KEY SWITCH INSIDE THE GATE IF THERE IS NOT AN UNSECURED SWITCH AVAILABLE FOR THE UTILITY’S USE. n © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B EDITORIAL CHANGES ARC IPJ IPJ KRG 12/06/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG004.4 4 OF 6 GENERAL INFORMATION

NOTES (CONT’D): MARKOUT SERVICE: XLIII. BEFORE YOU BEGIN DIGGING AT YOUR BUILDING SITE, CALL DIGALERT AT 811 (UNDERGROUND SERVICE ALERT OF SOUTHERN CALIFORNIA [USA]) FOR MARKOUT SERVICE. BY CONTACTING DIGALERT, YOU CAN AVOID CONFLICT WITH EXISTING UNDERGROUND FACILITIES. o TRENCH INSPECTIONS: XLIV. TO REQUEST INSPECTIONS FOR GAS AND/OR ELECTRIC TRENCHES, SEE SG021 FOR CONTACT INFORMATION. f EXISTING NONCONFORMING CONDITIONS: XLV. REWIRES OF EXISTING METER AND SERVICE LOCATIONS THAT HAVE EXISTING NONCONFORMING CONDITIONS SHALL REQUIRE CORRECTIVE MEASURES TO BRING THE CONDITIONS UP TO STANDARD AS PART OF THE REWIRE. TABLE 1 ADDRESSING CONVENTIONS ACRONYM SUBSTITUTION FOR AL ALARM CG CUSTOMER GENERATION (GENERATOR OUTPUT METER) CP CONTROL POWER (FOR PRIMARY SERVICES) CS CELL SITE EL ELEVATOR EV ELECTRIC VEHICLE FA FIRE ALARM FC FUEL CELL (FOR GAS) FM FACILITY METER FP FIRE PUMP HM HOUSE METER IR IRRIGATION MC METER CABINET ND NETWORK DEVICE PS PUMP SERVICE (DOMESTIC, AGRICULTURAL OR COMMERCIAL) REC RECREATION ROOM RR RAILROAD SPK SPRINKLER SL STREET LIGHT TEL TELEPHONE

TP TEMPORARY POWER TR TROLLEY TS TRAFFIC SIGNAL TV CABLE TV REFERENCE: a RULES FOR OVERHEAD ELECTRIC LINE CONSTRUCTION: GENERAL ORDER 95 OF THE PUBLIC UTILITIES COMMISSION, STATE OF CALIFORNIA b RULES FOR CONSTRUCTION OF UNDERGROUND ELECTRICAL SUPPLY AND COMMUNICATION SYSTEMS: GENERAL ORDER 128 OF THE PUBLIC UTILITIES COMMISSION, STATE OF CALIFORNIA © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B EDITORIAL CHANGES ARC IPJ IPJ KRG 12/06/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG004.5 5 OF 6 GENERAL INFORMATION

REFERENCE (CONT’D): c TITLE 24. STATE BUILDING STANDARDS ELECTRICAL CODE, FORMERLY KNOWN AS ELECTRICAL SAFETY ORDERS OF THE DIVISION OF INDUSTRIAL SAFETY, DEPARTMENT OF INDUSTRIAL RELATIONS, STATE OF CALIFORNIA. d NATIONAL ELECTRICAL CODE (NFPA 70), AN ANSI STANDARD, PUBLISHED BY THE NATIONAL FIRE PROTECTION ASSOCIATION, 1 BATTERYMARCH PARK, QUINCY, MA 02169-7471. e APPLICABLE LAWS AND ORDINANCES OF THE COUNTY OR CITY WHERE THE SERVICE CONNECTION IS INSTALLED. f FOR A LIST OF OFFICES WHERE REPRESENTATIVES MAY BE REACHED, SEE SG021. g FOR ANY BUILDING PROJECT NEEDS, BROCHURES AND FORMS CAN BE FOUND AT SDG&E'S BUILDER SERVICES RESOURCES PAGE ONLINE AT HTTP://WWW.SDGE.COM/BUILDER-SERVICES. h SDG&E TARIFFS INCLUDING RULE 15 CAN BE ACCESSED AT HTTP://WWW.SDGE.COM/RATES-REGULATIONS/CURRENT-AND- EFFECTIVE-TARIFFS. i RULE 2, B.9 AND B.10 AND RULE 3, C. SDG&E TARIFFS, INCLUDING RULES 2 AND 3, CAN BE ACCESSED AT HTTP://WWW.SDGE.COM/RATES-REGULATIONS/CURRENT-AND-EFFECTIVE-TARIFFS. j FOR ADDITIONAL INFORMATION, SEE "BILLING ACCOUNT ESTABLISHMENT" IN SG003. k SEE RULE 2.

l FOR DEFINITION OF "UTILITY METERS", SEE SG003. m FOR ADDITIONAL SEALING REQUIREMENTS, SEE SG503. n FOR A LIST OF LOCKSMITHS AUTHORIZED TO SELL UTILITY-APPROVED LOCKS, SEE SG005. o YOU MAY CALL DIGALERT AT 811, OR VISIT THEIR WEBSITE AT HTTP://WWW.DIGALERT.ORG. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B EDITORIAL CHANGES ARC IPJ IPJ KRG 12/06/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG004.6 6 OF 6 GENERAL INFORMATION

SCOPE: THIS STANDARD SHOWS THE LISTING OF LOCKSMITHS TO SELL SCHLAGE RESTRICTED VTQP QUAD SECTION KEYWAYS AND THE SDG&E RESTRICTED SCHLAGE PRIMUS VHLK KEYWAY. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. GAS & ELECTRIC METER ACCESS – IN ORDER TO PROVIDE THE BEST POSSIBLE GAS AND ELECTRIC SERVICE TO ALL OUR CUSTOMERS, SDG&E (UTILITY) MUST HAVE IMMEDIATE 24-HOUR ACCESS TO OUR METERS LOCATED ON THE CUSTOMER’S PREMISES. WE MAKE EVERY EFFORT TO DO OUR WORK WITH THE LEAST INCONVENIENCE TO YOU, OUR CUSTOMER. THE UTILITY MAY ALSO REQUIRE LINE TRUCK ACCESS TO LARGER SERVICES AND DISTRIBUTION FACILITIES ON THE CUSTOMER’S PROPERTY. CONSULT WITH THE UTILITY’S PROJECT PLANNER TO DETERMINE IF LINE TRUCK ACCESS IS REQUIRED. SEE PAGE SG021 FOR DESIGN & PROJECT MANAGEMENT CONTACT INFORMATION. II. ACCESSIBLE METER LOCATION - AN ACCESSIBLE METER LOCATION IS CAPABLE OF BEING REACHED QUICKLY 24-HOURS A DAY FOR INSTALLATION, READING, TESTING, INSPECTION, MAINTENANCE, OR IN THE EVENT OF AN EMERGENCY. LOCKED DOORS

AND GATES WHICH THE UTILITY’S EMPLOYEES MUST PASS THROUGH FOR ACCESS TO OUR FACILITIES MUST UTILIZE THE SDG&E RESTRICTED SCHLAGE PRIMUS VHLK KEYWAY. III. INACCESSIBLE METER LOCATION – AN INACCESSIBLE METER LOCATION REFERS TO A METER IN A LOCATION WHERE THE UTILITY’S EMPLOYEE/AGENT DOES NOT HAVE 24-HOUR ACCESS TO INSTALL, READ, TEST, INSPECT, MAINTAIN, OR RESPOND IN THE EVENT OF AN EMERGENCY. IV. BELOW IS A LIST OF LOCKSMITHS AUTHORIZED BY THE UTILITY TO SELL THE SCHLAGE RESTRICTED VTQP QUAD SECTION KEYWAYS AND THE SDG&E RESTRICTED SCHLAGE PRIMUS VHLK KEYWAY THAT WILL ALLOW THE UTILITY’S PERSONNEL ACCESS TO ITS FACILITIES: TABLE 1 SAN DIEGO AREA A-ADVANCED LOCKSMITHS ACCURATE SECURITY PROS ADAMS AVENUE LOCK & KEY 8280 CLAIREMONT MESA BLVD #135 9919 HIBERT ST #D 2948 IMPERIAL AVE SAN DIEGO, CA 92111 SAN DIEGO, CA 92131 SAN DIEGO, CA 92102 858-277-4358 858-271-1155 619-280-0800 BUSY BEES LOCKS & KEYS CALIFORNIA COMMERCIAL SECURITY COMMERCIAL LOCK & SAFE 1747 KETTNER BLVD 9560 RIDGEHAVEN CT #C 7094 MIRAMAR RD #118 SAN DIEGO, CA 92101 SAN DIEGO, CA 92123 SAN DIEGO, CA 92121

619-733-0172 800-286-2555 / 858-503-7500 858-566-6065 CONVOY STREET LOCKSMITH SHOP CORONADO LOCK AND KEY GRAH SAFE & LOCK 4204 CONVOY ST 1016 9TH ST 939 UNIVERSITY AVE #100 SAN DIEGO, CA 92111 SAN DIEGO, CA 92118 SAN DIEGO, CA 92103 858-715-8533 619-435-5363 619-234-4829 LA JOLLA LOCKSMITH CORPORATION LABANN LOCK & SAFE 8677 VILLA LA JOLLA DR #1140 2038 HANCOCK ST SAN DIEGO, CA 92037 SAN DIEGO, CA 92110 858-453-6868 619-291-2038 (SERVES ALL AREAS) SOUTH BAY AREA BUSY BEES LOCKS & KEYS CHULA VISTA SECURITY CENTER PROFESSIONAL LOCKSMITH SERVICES 386 EAST H ST STE 209 CHULA VISTA, CA 91909 1111 SEACOAST DR SAN DIEGO, CA 91910 619-476-1333 IMPERIAL BEACH, CA 91932 619-271-6364 (ALSO SERVES SAN DIEGO AREA) 619-429-0813 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B EDITORIAL CHANGES ARC IPJ IPJ KRG 11/04/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D

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TABLE 1 (CONT’D) EAST COUNTY AREA A AARON LOCK & KEY A GARAGE DOOR & GATE STORE KWIK-KEY LOCKSMITHS 3027 LEMON GROVE AVE 9901 MAINE AVE 7368 EL CAJON BLVD LEMON GROVE, CA 91945 LAKESIDE, CA 92040 LA MESA, CA 91941 619-462-3381 619-561-9370 619-667-5120 LYNN’S LOCKSMITH SERVICE 1380 EAST MAIN ST EL CAJON, CA 92021 619-447-7332 NORTH COUNTY AREA A-1 LOCK & SAFE ADOBE LOCK & SAFE B&B LOCK & SAFE 6020-B PASEO DEL NORTE 184 SOUTH RANCHO SANTA FE RD 250 WOODWARD AVE #C CARLSBAD, CA 92011 SAN MARCOS, CA 92078 ESCONDIDO, CA 92025 760-431-5397 760-727-5470 760-746-8060 (ALSO SERVES SAN DIEGO & SOUTH BAY AREAS) CARLSBAD VILLAGE LOCK & KEY FOOTHILL LOCK & SECURITY PRO-TEC LOCK & SAFE 3138 ROOSEVELT ST #E 1650 ORD WAY 601 OCEANSIDE BLVD #A CARLSBAD, CA 92008 OCEANSIDE, CA 92056 OCEANSIDE, CA 92056 760-434-6600 760-806-9000 / 858-999-4400 760-722-1479 QUALITY LOCK & SAFE RAMONA LOCKSMITH RL HELMS LOCK & DOOR 340 EAST BROADWAY 811 ½ D ST 4140 OCEANSIDE BLVD UNIT 159-406 VISTA, CA 92084 RAMONA, CA 92065 OCEANSIDE, CA 92056 760-945-4545 760-789-4189 760-685-2794

(ALSO SERVES ORANGE COUNTY) (SERVES JULIAN, RAMONA, SANTA YSABEL) VISTA LOCK & SAFE CO SUPERIOR LOCKSMITH 1025 SOUTH SANTA FE AVE #A ESCONDIDO, CA VISTA, CA 92083 760-580-8777 (MOBILE) 760-726-0310 (ALSO SERVES SAN DIEGO AREA) ORANGE COUNTY AREA CAPISTRANO LOCK AND SAFE CONTROLLED KEY SYSTEMS, INC. CUSTOM LOCK & KEY 32118 PASEO ADELANTO, #5AR 17248 RED HILL AVE SERVES ALL ORANGE COUNTY SAN JUAN CAPISTRANO, CA 92675 IRVINE, CA 92614 714-788-9660 / 949-233-4422 949-496-5625 949-756-1121 MARIN LOCK & SAFE COMPANY TONY’S LOCKSMITH & SAFE SERVICE 26072 MERIT CIR #108 429 AVE DE LA ESTRELLA LAGUNA HILLS, CA 92653 SAN CLEMENTE, CA 92672 949-582-5652 949-492-5700 (SERVES SOUTH ORANGE COUNTY) (SERVES SOUTH ORANGE COUNTY) REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B EDITORIAL CHANGES ARC IPJ IPJ KRG 11/04/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D

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SCOPE: THE CALIFORNIA ELECTRICAL CODE REQUIRES THE INSTALLATION OF SERVICE EQUIPMENT WITH OVERCURRENT PROTECTIVE DEVICES WITH A SHORT CIRCUIT CURRENT RATING EQUAL TO, OR NOT LESS THAN, THE AVAILABLE FAULT CURRENT PROVIDED BY SDG&E (UTILITY), AND WHEN APPLICABLE, THE CONTRIBUTION TO FAULT CURRENT FROM CUSTOMER’S MOTOR CONTRIBUTION. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. THE UTILITY’S MAXIMUM CONTRIBUTION TO FAULT CURRENT IS STATED AS FOLLOWS: a. RESIDENTIAL - APPLICABLE TO A SINGLE-FAMILY RESIDENCE OR DUPLEX AS DEFINED IN RULE 1 (WHICH MAY INCLUDE A HOUSE METER FOR A TOTAL OF 3 METERS), MULTI-FAMILY RESIDENTIAL SERVICE CONSISTING OF 3 OR MORE DWELLING UNITS, OR A MOBILE HOME; ALSO APPLICABLE TO SERVICE USED IN COMMON FOR RESIDENTIAL PURPOSES IN A MULTI-FAMILY DWELLING, ON A SINGLE PREMISES, WHETHER SEPARATELY METERED OR COMBINED WITH SERVICE TO AN INDIVIDUAL DWELLING UNIT. THE UTILITY’S CONTRIBUTION TO THE AVAILABLE FAULT CURRENT AT THE POINT OF CONNECTION OF SERVICE CONDUCTORS TO THE CUSTOMER’S FACILITIES WILL NOT EXCEED THE VALUES LISTED IN TABLE 1. TABLE 1:

UTILITY’S CONTRIBUTION TO FAULT SERVING VOLTAGE SERVICE ENTRANCE AMPACITY PHASE CURRENT WILL NOT EXCEED (VOLTS) (AMPS) (AMPS) 1Ø 120/240 225 OR LESS 10,000 1Ø 120/240 226 – 600 22,000 1Ø 120/208 200 OR LESS 42,000 1 Ø Ib 120/240 800 42,000 3Ø 120/240 600 OR LESS (SEE ITEM 4) 42,000 3Ø 208Y/120 3,000 OR LESS 42,000 3Ø 208Y/120 3,001 – 4,000 65,000 b BY EXCEPTION ONLY: 800 AMPS AND ABOVE SINGLE PHASE RESIDENTIAL MAY BE CONSIDERED ONLY ON A CASE BY CASE BASIS WHEN THE SDG&E DISTRIBUTION SYSTEM SERVING THE AREA IS ONLY SINGLE PHASE AND 3 PHASE DISTRIBUTION IS A CONSIDERABLE DISTANCE AWAY. THIS EXCEPTION REQUIRES REVIEW AND DEVIATION APPROVAL BY SDG&E SERVICE STANDARDS IN ELECTRIC DISTRIBUTION ENGINEERING. c. NON-RESIDENTIAL – APPLICABLE TO ALL NON-RESIDENTIAL OCCUPANCIES SUCH AS, BUT NOT LIMITED TO, COMMERCIAL, INDUSTRIAL, AGRICULTURAL, GOVERNMENTAL, EDUCATIONAL INSTITUTIONS, HOSPITALS, MEDICAL CLINICS, ETC. THE UTILITY’S CONTRIBUTION TO THE AVAILABLE FAULT CURRENT AT THE POINT OF CONNECTION OF THE UTILITY’S SERVICE CONDUCTORS TO

THE CUSTOMER’S FACILITIES WILL NOT EXCEED THE VALUES LISTED IN TABLE 2. TABLE 2: UTILITY’S CONTRIBUTION TO FAULT SERVICE ENTRANCE AMPACITY PHASE SERVING VOLTAGE (VOLTS) CURRENT WILL NOT EXCEED (AMPS) (AMPS) 1Ø 120/208 200 OR LESS 42,000 1Ø 120/240 400 OR LESS 42,000 1Ø 240/480 200 OR LESS 10,000 3Ø 120/240 600 OR LESS (SEE Ie) 42,000 3Ø 208Y/120 3,000 OR LESS 42,000 3Ø 208Y/120 3,001 – 4,000 65,000 3Ø 480 600 OR LESS (SEE If) 30,000 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES ARC IPJ IPJ KRG 11/07/22 E A EDITORIAL CHANGES -- LSM LSM TPM 11/01/17 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG006.1 1 OF 2 UTILITY’S CONTRIBUTION TO FAULT CURRENT

NOTES (CONT’D): TABLE 2 (CONT’D): UTILITY’S CONTRIBUTION TO FAULT SERVICE ENTRANCE AMPACITY PHASE SERVING VOLTAGE (VOLTS) CURRENT WILL NOT EXCEED (AMPS) (AMPS) 3Ø 480Y/277 2,000 OR LESS 30,000 3Ø 480Y/277 2,001 – 3,000 45,000 3Ø 480Y/277 3,001 – 4,000 65,000 d. SDG&E’S AVAILABLE FAULT CURRENT FOR MEDIUM AND HIGH VOLTAGE SERVICES WILL BE CALCULATED ON AN INDIVIDUAL BASIS AND WILL BE QUOTED FOR BOTH THE INITIAL AND ULTIMATE THREE-PHASE, LINE-TO-LINE, AND LINE-TO-GROUND FAULT CURRENT VALUES. e. MAXIMUM SERVICE PANEL SIZE ALLOWED TO BE SERVED BY A 120/240 VOLT, THREE-PHASE DELTA-CONNECTED TRANSFORMER INSTALLATION, OVERHEAD OR UNDERGROUND, IS 600 AMPS. f. MAXIMUM SERVICE PANEL SIZE ALLOWED TO BE SERVED BY AN OVERHEAD 480 VOLT, THREE-PHASE DELTA-CONNECTED TRANSFORMER INSTALLATION IS 600 AMPS. REFERENCE: a. REFER TO DM6142 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES ARC IPJ IPJ KRG 11/07/22 E

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SCOPE: THIS STANDARD PROVIDES PRIMARY FUSING INFORMATION FOR SDG&E DISTRIBUTION TRANSFORMERS. TABLE 1 REPLACEMENT FUSE FOR BAY-O-NET TRANSFORMER CATALOG NUMBER FUSE SIZE IMPEDANCE KV KVA KEARNEY RTE VOLTAGE (AMPS) (%) 25 15 124080-15 4038105C07 1.2 2.4 35 124080-35 - 50 1.8 40 - 4038105C11 75 15 124080-15 4038105C07 1.3 4.16 150 30 124080-30 - 500 100 - 4000353C16 - 3.5 25 6 124080-6 4038105C04 1.2 6.9 50 12 124080-12 4038105C06 1.8 75 15 124080-15 4038105C07 75 6 124080-6 4038105C04 1.3 150 12 124080-12 4038105C06 2400/4160Y/2400 OR 225 15 4.63 2400/4160GrdY/2400 124080-15 4038105C07 - - 240/120 3Ø 4W 1.6 300 25 208Y/120 2.2 124080-25 4038105C09 - - 480Y/277 1.3 2400/4160Y/2400 12.0 500 40 4.63 OR 2400/4160GrdY/2400 4000353C12 - - 208Y/120 3.5 - - 480Y/277 2.2 750 - 65 4000353C14 1000 1500 100 4038361C04CB - 5.32 2000 125 4038361C05CB 2500 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F

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TABLE 2 LIVE FRONT TRANSFORMER FUSING TABLE, THREE-PHASE, 12KV TYPE SM-4 RATED 14.4KV NOMINAL TRANSFORMER FUSE SIZE S&C CATALOG IMPEDANCE VOLTAGE RATING (AMPS) NO. (%) (kV) (KVA) 1500 125 122200R4 14.4 2000 150 122250R4 5.32 2500, 3000 200 122300R4 INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. THIS INFORMATION MAY BE USED BY THE CUSTOMER'S ENGINEERS WHEN CALCULATING THE INCIDENT ENERGY LEVELS FOR ARC FLASH CONDITIONS, OR PERFORMING PROTECTION COORDINATION STUDIES FOR SECONDARY VOLTAGE SERVICES. REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG007.2 2 OF 2 SDG&E TRANSFORMER FUSING INFORMATION

SCOPE: THIS STANDARD ILLUSTRATES THE UTILITY'S CONTRIBUTION TO FAULT CURRENT SECONDARY VOLTAGE. A B a 1 1 9 0 C 2 3 9 9 0 0 GRADE LEVEL 4 9 0 FIGURE 1 EXAMPLE 1 APPLIES TO TWO DWELLING UNITS WITH GROUPED METERS WITH D I IV V VI XVI A COMBINED SERVICE RATING OF 225A MAXIMUM SEE TABLES 1 AND 2 A E 2 5 9 0 F 18” MAX. 2 3 9 9 0 0 GRADE LEVEL 4 FIGURE 2 9 EXAMPLE 2 0 APPLIES TO MULTI-FAMILY RESIDENTIAL BUILDINGS WITH 3 OR MORE D G VII VIII IX XI RESIDENTIAL DWELLING UNITS WITH GROUPED METERS SEE TABLES 1 AND 2 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG008.1 1 OF 6 UTILITY’S CONTRIBUTION TO FAULT CURRENT SECONDARY VOLTAGE SERVICE EXAMPLES

A B a 3 1 1 9 0 F 2 3 9 9 0 0 GRADE LEVEL 4 9 0 FIGURE 3 EXAMPLE 3 APPLIES TO ADDING ONE NEW RESIDENTIAL METER SET TO TWO EXISTING D VIII IX XI XII XIII DWELLING UNITS WITH GROUPED METERS 600A OR LESS SERVICE AMPACITY. SEE TABLES 1 AND 2 0 A E 4 4 1 1 9 0 F 18” MAX. 2 3 9 9 0 0 GRADE LEVEL 4 9 FIGURE 4 0 EXAMPLE 4 APPLIES TO MULTI-FAMILY RESIDENTIAL BUILDINGS WITH 3 OR MORE D G VIII IX XI XIV RESIDENTIAL UNITS WITH GROUPED METERS SEE TABLES 1 AND 2 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG008.2 2 OF 6 UTILITY’S CONTRIBUTION TO FAULT CURRENT SECONDARY VOLTAGE SERVICE EXAMPLES

H 3 4 18” 8 6 7 MAX. 9 9 9 F 0 0 0 ON OFF 9 6’-3” MAX. 9 GRADE LEVEL 0 3’-0” MIN. FIGURE 5 EXAMPLE 5 APPLIES TO RESIDENTIAL UNITS (3 OR MORE) WITH GROUPED METERS D G IX XI IN A METER CABINET (DOORS NOT SHOWN) WITH A SERVING VOLTAGE OF SINGLE-PHASE, 3-WIRE, 120/240V, 600A MAXIMUM SEE TABLES 1 AND 2 0 5 4 18” MAX. 11 F 90 ON OFF 7 9 9 10 6’-3” MAX. 0 90 4’-0” MIN. GRADE LEVEL 6 MAX. 9 0 FIGURE 6 EXAMPLE 6 APPLIES TO COMMERCIAL OR INDUSTRIAL GROUPED METERING D G II XI XV SEE TABLES 1 AND 2 V © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. 0 REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG008.3 3 OF 6 UTILITY’S CONTRIBUTION TO FAULT CURRENT SECONDARY VOLTAGE SERVICE EXAMPLES

5 4 OVERHEAD SERVICE CUSTOMERS LOAD DROP CONDUCTORS 12 90 III J 13 90 FIGURE 7 EXAMPLE 7 APPLIES TO TEMPORARY SERVICE – OVERHEAD OR UNDERGROUND TO SERVE RESIDENTIAL AND COMMERCIAL/INDUSTRIAL PREMISES WITH A 200A MAXIMUM, D II XI XV SINGLE-PHASE OR THREE-PHASE SERVICE V SEE TABLES 1 AND 2 0 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG008.4 4 OF 6 UTILITY’S CONTRIBUTION TO FAULT CURRENT SECONDARY VOLTAGE SERVICE EXAMPLES

TABLE 1 FIGURE ITEMS ITEM DESCRIPTION COMMENT RISER AND WEATHERHEAD, NEW 1 REQUIRED GUTTER, LINE, NEW 2 METER, PROPOSED NEW 3 DISCONNECT, SERVICE, PROPOSED NEW 4 METER, EXISTING RISER AND WEATHERHEAD, NEW SHOWN ON FIGURE 5 GUTTER, LINE, NEW IF REQUIRED TAPPING FROM EXISTING GUTTER, LINE 6 DISCONNECT, SERVICE, METER 7 SOCKET, METER 8 EQUIPMENT, SERVICE, RATED 600A, 3-WIRE, SINGLE-PHASE, 120/240V 9 DISCONNECT, MAIN 10 FACILITIES, TEST-BYPASS (IN THIS COMPARTMENT) 11 EQUIPMENT, SERVICE, RATED 400A MAXIMUM 12 EQUIPMENT, SERVICE, RATED 200A MAXIMUM 13 LATERAL, SERVICE UNDERGROUND (OPTIONAL) TABLE 2 UTILITY FAULT CURRENT CONTRIBUTION UTILITY'S MAXIMUM CONTRIBUTION PANEL ITEM TO FAULT CURRENT (AMPS) (AMPS) 1 - 10,000 - 22,000 2 - 42,000 3 - 22,000 226-600 22,000 4 800 42,000 5 - 42,000 5 INSTALLATION: A SERVICE RISER TO BE LOCATED ON WALL FACING UTILITY POLE LINE OR WITHIN 18 INCHES OF BUILDING CORNER. B EXCEPTION AS PERMITTED ON SG103, FIGURES 1-3 C RESIDENTIAL CLEARANCES REQUIRED D ELECTRICIAN SHALL PROVIDE EQUIPMENT RATED FOR THE FAULT CURRENT OF THE SYSTEM.

E NO EXCEPTIONS PERMITTED PER GO95. F COMMERCIAL CLEARANCES REQUIRED G A MAIN DISCONNECT IS REQUIRED AHEAD OF 7 OR MORE METER SERVICE DISCONNECTS. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG008.5 5 OF 6 UTILITY’S CONTRIBUTION TO FAULT CURRENT SECONDARY VOLTAGE SERVICE EXAMPLES

INSTALLATION (CONT’D): H MAXIMUM OF 3 PARALLEL RUNS OF OVERHEAD SERVICE ENTRANCE CONDUCTORS PER PHASE TO SUPPLY THE LOAD FOR ONE SERVICE. J METER SERVICE DISCONNECT IF SERVED OVERHEAD. IF SERVED UNDERGROUND, METER SERVICE DISCONNECT TO BE LOCATED IMMEDIATELY ADJACENT TO SERVICE AND METER PANEL. BILL OF MATERIALS: NONE NOTES: I EXCEPTION: TWO MAIN SERVICE DISCONNECTS RATED 125A EACH IS PERMISSIBLE. II FACTORY-INSTALLED TEST-BYPASS FACILITIES ARE REQUIRED FOR 100 AND 200A COMMERCIAL/INDUSTRIAL SERVICE EQUIPMENT. III TEST-BYPASS FACILITIES ARE REQUIRED FOR ALL 200A OR LESS TEMPORARY SERVICES. CONCLUSIONS: IV RESIDENTIAL METERING EQUIPMENT IS ACCEPTABLE. V UTILITY CONTRIBUTION TO FAULT CURRENT WILL NOT EXCEED 10,000A. b VI RESIDENTIAL CLEARANCES APPLY PER G.O. 95. VII NEW DWELLING UNIT METER MUST NOT EXCEED 225A MAXIMUM, SINGLE-PHASE, 120/240V. VIII TEST-BYPASS FACILITIES ARE NOT REQUIRED. IX UTILITY'S CONTRIBUTION TO FAULT CURRENT WILL NOT EXCEED THE VALUES SHOWN ON SG006, TABLE 1 AND ARE BASED ON THE SERVICE AMPACITY. b XI COMMERCIAL CLEARANCES APPLY PER G.O. 95. c

XII 600A MAXIMUM SERVICE SIZE, SINGLE-PHASE, 120/240V XIII IF SERVICE AMPERAGE EXCEEDS 600A, SEE SG006, TABLE 1 FOR UTILITY'S MAXIMUM CONTRIBUTION TO FAULT CURRENT. b XIV NEW HOUSE METER - 225A MAXIMUM, 1-PHASE, 120/240V XV UTILITY CONTRIBUTION TO FAULT CURRENT WILL NOT EXCEED THE VALUES SHOWN ON SG006, TABLE 2 AND ARE BASED ON THE SERVICE AMPACITY. d XVI NEW DWELLING UNIT METER PLUS EXISTING MUST NOT EXCEED 225A MAXIMUM, SINGLE-PHASE, 120/240V. REFERENCE: a SEE SG103, FIGURES 1-3. b SEE SG006, TABLE 1. c SEE G.O. 95. d SEE SG006, TABLE 2. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG008.6 6 OF 6 UTILITY’S CONTRIBUTION TO FAULT CURRENT SECONDARY VOLTAGE SERVICE EXAMPLES

SCOPE: THIS STANDARD HAS BEEN COMPILED AS A GUIDE FOR A TYPICAL INSTALLATION OF UTILITY DISTRIBUTION FACILITIES IN A CUSTOMER-OWNED VAULT. THE INFORMATION IS TO BE USED ONLY AS A GUIDELINE AND NOT FOR THE DESIGN OR CONSTRUCTION OF THE VAULT, OR INSTALLATION OF ELECTRICAL EQUIPMENT. INSTALLATION: CUSTOMER SHALL FURNISH, INSTALL, OWN, AND MAINTAIN: A. VAULT: 1. THE WALLS AND ROOF SHALL BE CONSTRUCTED OF 6 INCHES MINIMUM REINFORCED CONCRETE, REINFORCED CONCRETE BLOCK, OR 8 INCHES MINIMUM REINFORCED BRICK. ALL CONCRETE BLOCK OR BRICK JOINTS ARE TO BE MORTARED SOLID. A 6-INCH THRESHOLD FOR OIL RETENTION IS REQUIRED AT ALL ACCESS OPENINGS INTO THE VAULT. THE VAULT FLOOR IS TO BE CAPABLE OF SUPPORTING COMBINED EQUIPMENT WEIGHT AS REQUIRED. 2. WHEREVER A VAULT IS CONSTRUCTED OVER SUB LEVELS OF A STRUCTURE, THE CUSTOMER IS TO PROVIDE SDG&E WITH A CERTIFICATE FROM A REGISTERED CIVIL ENGINEER VERIFYING THE STRUCTURAL ADEQUACY OF THE BUILDING TO SUPPORT THE TRANSFORMERS UNDER NORMAL AND STRUCTURAL FIRE CONDITIONS AS WELL AS FIRE WITHSTANDING CAPABILITIES OF

THE STRUCTURE FLOOR, CEILING, AND WALLS. 3. ANY VAULT CONSTRUCTION BELOW FINISHED GRADE IS TO BE CONSIDERED A DRY VAULT. THE EXTERIOR SURFACES OF A DRY VAULT WHICH ARE EXPOSED TO SURROUNDING EARTH CONDITIONS WILL BE MOISTURE-PROOFED AGAINST WATER ENTRY. A VAULT MUST BE CONNECTED TO THE BUILDING OR STRUCTURE WITH A MAIN DOOR FOR ENTRANCE AND EXIT. 4. NO DUCTS, PIPES, OR CONDUITS, EXCEPT THOSE WHICH ARE A PART OF THE ELECTRICAL INSTALLATION, SHALL BE INSTALLED IN OR THROUGH THE VAULT. WATER-TYPE FIRE SPRINKLER SYSTEMS ARE PROHIBITED IN ANY VAULT. CUSTOMER MUST INFORM THE UTILITY WHEN ANY PRE-STRESSED CONCRETE PORTIONS OF A VAULT ARE PROPOSED FOR CONSTRUCTION. B. CONDUIT AND BUS DUCT: 1. PRIMARY CONDUITS SHALL BE EITHER DIRECT-BURIED OR CONCRETE-ENCASED AS SPECIFIED BY SDG&E. 2. THERE ARE NO RESTRICTIONS ON THE APPLICATION OF CUSTOMER-SUPPLIED BUS DUCT. ANY SIZE PANEL MAY BE FED BY BUS DUCT, AT THE OPTION OF THE CUSTOMER. THE ONLY EXCEPTION IS BUS DUCT CANNOT BE APPLIED IN CASES WHERE MORE THAN ONE SERVICE POINT WILL BE SERVED BY A SINGLE TRANSFORMER. 3.

CUSTOMERS MAY ELECT THE OPTION OF HAVING THE UTILITY INSTALL AND MAINTAIN SERVICE LATERAL CONDUCTORS, REGARDLESS OF BOARD SIZE, GIVEN THE REQUIRED CRITERIA ARE MET TO THE SATISFACTION OF THE UTILITY. 4. THE TRANSFORMER TO THE TERMINATING ENCLOSURE DISTANCE IS LIMITED TO 75 CONDUIT FEET, WHICH INCLUDES THE ELBOWS. C. CUSTOMER’S METERING FACILITIES: SERVICE EQUIPMENT IS TO BE INSTALLED IN ACCORDANCE WITH SDG&E'S SERVICE STANDARDS & GUIDE. METERS AND SERVICE EQUIPMENT ARE NOT PERMITTED IN THE VAULT. D. DRAINAGE SYSTEM: STANDARD FLOOR DRAINS MUST DRAIN TO A DRY SUMP LOCATION AS DETERMINED AND APPROVED BY THE APPROPRIATE INSPECTION AUTHORITY. FLOOR DRAINS ARE NOT TO BE CONNECTED TO THE SEWER OR DRAIN SYSTEM. E. EQUIPMENT OPENINGS: 1. BELOW GRADE: WHEN THE EQUIPMENT OPENING IS TO BE THROUGH A VAULT CEILING, THE CUSTOMER SHALL PROVIDE A REMOVABLE 3-HOUR FIRE APPROVED CONCRETE COVER. BOTH OPENING AND COVER SHALL HAVE MATCHING BEVELED EDGES, WITH MINIMUM 1/2-INCH VERTICAL DEFLECTION. FOUR LIFTING INSERTS ARE TO BE PROVIDED FOR REMOVAL OF THE COVER.

LIFTING INSERTS ARE TO BE 1-INCH MINIMUM COIL, WITH SLOTTED SETTING STUDS, AS SUPPLIED BY A PROFESSIONAL CONCRETE ACCESSARY PRODUCTS COMPANY. THE EQUIPMENT OPENING INSIDE AND OUT MUST BE KEPT CLEAR AND UNOBSTRUCTED BY CUSTOMER-INSTALLED EQUIPMENT. PROPER CLEARANCE FOR OPERATION OF HEAVY EQUIPMENT, INCLUDING CRANES, MUST BE PROVIDED ABOVE THE OPENING FOR INSTALLATION AND REMOVAL OF MATERIAL AND EQUIPMENT IN AND OUT OF THE VAULT. CONTACT THE UTILITY FOR REQUIRED CLEARANCES. CUSTOMER SHALL SEAL THE COVER TO PREVENT WATER ENTRY FOLLOWING INSTALLATION OF EQUIPMENT. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG009.1 1 OF 3 TRANSFORMER VAULTS

INSTALLATION (CONT’D): CUSTOMER SHALL FURNISH, INSTALL, OWN, AND MAINTAIN (CONT’D): E. EQUIPMENT OPENINGS (CONT’D): 2. ON GRADE: EQUIPMENT OPENING IS TO BE THROUGH AN EXTERIOR VAULT WALL, AND THE EQUIPMENT DOOR IS TO BE 3- HOUR FIRE APPROVED. CUSTOMER IS TO PROVIDE AND INSTALL A SCHLAGE VTQP QUAD SECTION MA SERIES KEY SECTION IN A STOREROOM FUNCTION (SELF-LOCKING) RHODES SERIES LOCKSET. SDG&E WILL REPLACE THE MA SERIES CYLINDER WITH AN ELECTRIC SERIES CYLINDER PRIOR TO ENERGIZING EQUIPMENT IN THE VAULT. THE CUSTOMER IS REQUIRED TO NOTIFY SDG&E'S INSPECTOR WHEN THE LOCKSET IS INSTALLED. THE UTILITY WILL REPLACE THE MA SERIES CYLINDER PRIOR TO ENERGIZING THE SERVICE. A PERMANENT 6-FOOT CLEAR AND LEVEL WORKING AREA IS REQUIRED AT THE VAULT FLOOR LEVEL OUTSIDE THE ACCESS DOOR. DOOR SHALL PROVIDE 24-HOUR DIRECT ACCESS FOR UTILITY PERSONNEL. F. GROUNDING SYSTEM: A GROUND GRID WILL BE REQUIRED WITHIN THE VAULT, AND THE REQUIREMENTS WILL BE AS SPECIFIED ON THE DRAWINGS PROVIDED BY SDG&E. G. LIGHTING: THE VAULT IS TO BE ILLUMINATED.

THE VENTILATION BLOWER MOTOR AND VAULT LIGHTING SYSTEM ARE TO BE SEPARATELY PROTECTED. H. PERSONNEL ACCESS DOOR: 1. A MINIMUM 3-FOOT WIDE X 6’-8” HIGH, 3-HOUR FIRE RATED, SELF-CLOSING PERSONNEL ACCESS DOOR IS REQUIRED. a 2. ACCESS MUST BE THROUGH A DOOR ON AN EXTERIOR WALL OF THE BUILDING TO PROVIDE IMMEDIATE 24-HOUR-A-DAY ACCESS. THE DOOR MUST SWING OUT OF THE ROOM IN THE DIRECTION OF EGRESS, AND IT MUST BE EQUIPPED WITH PANIC HARDWARE. IF THE DOOR IS TO BE LOCKED DURING CONSTRUCTION AND PRIOR TO ENERGIZING ELECTRICAL EQUIPMENT IN THE VAULT, THE CUSTOMER IS REQUIRED TO PROVIDE AND INSTALL A SCHLAGE VTQP QUAD SECTION MA SERIES KEY SECTION IN A STOREROOM FUNCTION (SELF-LOCKING) RHODES SERIES LOCKSET. THE CUSTOMER IS REQUIRED TO NOTIFY SDG&E'S INSPECTOR WHEN THE LOCKSET IS INSTALLED. SDG&E WILL REPLACE THE MA SERIES CYLINDER WITH AN ELECTRIC SERIES CYLINDER PRIOR TO ENERGIZING EQUIPMENT IN THE VAULT. 3. THE DOOR THRESHOLD IS TO BE 6 INCHES ABOVE THE VAULT FLOOR FOR OIL RETENTION. 4. THE CUSTOMER SHALL PROVIDE SDG&E WITH AN APPROVED ROUTE AND ACCESS EASEMENT TO THE PERSONNEL ACCESS DOOR

IN THE VAULT. THE DOOR SHALL PROVIDE DIRECT 24-HOUR ACCESS FOR UTILITY PERSONNEL. J. PICK UP INSERTS AND PULLING EYES: PICK UP INSERTS AND PULLING EYES ARE REQUIRED FOR INSTALLATION OF THE TRANSFORMER, AND THE PULLING AND TRAINING OF THE CABLES. K. VENTILATION SYSTEMS: 1. THE CUSTOMER SHALL PROVIDE FOR ADEQUATE VENTILATION, ALL VENTS OR DUCTING, AND RELATED FACILITIES AS REQUIRED BY SDG&E. 2. INSTALLATION IS TO COMPLY WITH ALL LOCAL CODES AND ORDINANCES. 3. FIRE DAMPERS MAY BE REQUIRED BY THE APPROPRIATE INSPECTION AUTHORITY. WHEN TRANSFORMER VAULTS ARE IMPROPERLY CONSTRUCTED BECAUSE THE UTILITY WAS NOT CONTACTED IN ADVANCE, THE CUSTOMER WILL BE RESPONSIBLE FOR ALL MODIFICATIONS. SDG&E WILL FURNISH, INSTALL, OWN, AND MAINTAIN: L. TRANSFORMERS M. PRIMARY DISTRIBUTION CABLE AND EQUIPMENT © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E

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INSTALLATION (CONT’D): SDG&E WILL FURNISH, INSTALL, OWN, AND MAINTAIN (CONT’D): N. SERVICE LATERAL CONDUCTORS (IN CUSTOMER’S CONDUIT) FROM TRANSFORMER SECONDARY TERMINALS TO THE CUSTOMERS TERMINATING ENCLOSURE (UNDERGROUND PULL SECTION) O. SERVICE LATERAL CONDUCTORS FROM THE TRANSFORMER SECONDARY TERMINALS TO THE BUS STUBS WHERE THE CUSTOMER PROVIDES A BUS DUCT SERVICE BILL OF MATERIALS: NONE NOTES: I. ALL REQUESTS FOR VAULT DESIGN MUST BE REVIEWED AND APPROVED BY SDG&E (UTILITY) DURING THE ARCHITECTURAL DESIGN PHASE OF THE PROJECT. A MEETING WITH UTILITY REPRESENTATIVES IS BENEFICIAL TO ALL PARTIES EARLY IN THE DESIGN PHASE TO ENSURE PROPER COMPLIANCE WITH VAULT STANDARDS. THE MAIN ELEMENTS THAT WILL BE REVIEWED DURING THE MEETING INCLUDE THE FOLLOWING: a. ACCESS FOR TRANSFORMER INSTALLATION AND MAINTENANCE b. ACCESS TO INSTALL AND MAINTAIN THE SERVICE LATERAL CONDUCTORS c. OTHER REQUIREMENTS APPLICABLE TO VAULT INSTALLATIONS SUCH AS POWER VENTILATION, LIGHTING, PERSONNEL ACCESS, ETC. II.

THE DIMENSIONS WILL VARY IN SIZE DEPENDING UPON THE BUS AMPACITY OF THE CUSTOMER SERVICE ENTRANCE EQUIPMENT, SERVING VOLTAGE AND SIZE OF THE TRANSFORMER TO BE INSTALLED BY SDG&E. A TYPICAL VAULT SIZE COULD RANGE ANYWHERE FROM 13'-6" X 9'-6" X 8'-0" HIGH (FOR A 400A SERVICE) TO 20'-0" X 16'-6" X 12'-0" HIGH (FOR A 4,000A SERVICE) PROVIDED NO EQUIPMENT OTHER THAN THE TRANSFORMER IS REQUIRED IN THE VAULT. III. VAULT INSTALLATIONS MUST BE IN COMPLIANCE WITH ALL APPLICABLE RULES OF THE ELECTRICAL SAFETY ORDERS OF THE DIVISION OF INDUSTRIAL SAFETY, DEPARTMENT OF INDUSTRIAL RELATIONS, STATE OF CALIFORNIA, NATIONAL ELECTRICAL CODE, OTHER GOVERNING CODES AND ORDINANCES, AND COMPLY WITH REQUIREMENTS OF THE UTILITY. REFERENCE: a REFER TO THE SDG&E ELECTRIC VAULT REQUIREMENTS AND SPECIFICATIONS DOCUMENT. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E

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SCOPE: THIS STANDARD OUTLINES THE SDG&E (UTILITY) REQUIREMENT FOR THIRD-PARTY TESTING OF METAL-ENCLOSED SERVICE ENTRANCE AND UNMETERED FEEDER BUSWAYS. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. THE UTILITY REQUIRES THE INSPECTION AND TESTING OF METAL-ENCLOSED “SERVICE ENTRANCE AND UNMETERED FEEDER BUSWAYS” IN ACCORDANCE WITH THE LATEST EDITION OF THE INTERNATIONAL ELECTRICAL TESTING ASSOCIATION, INC. (NETA), ACCEPTANCE TESTING SPECIFICATIONS FOR ELECTRICAL POWER DISTRIBUTION EQUIPMENT AND SYSTEMS AS SHOWN IN TABLE 1. TABLE 1 NETA SPECIFICATIONS REQUIRED INSPECTION AND TESTING INFORMATION SECTION TOPIC REQUIREMENTS 3 QUALIFICATIONS OF TESTING ORGANIZATION AND PERSONNEL - 3.1 TESTING ORGANIZATION II AS PUBLISHED 3.2 TESTING PERSONNEL AS PUBLISHED 7.4 METAL-ENCLOSED BUSWAYS - 7.4.1 VISUAL AND MECHANICAL INSPECTION AS PUBLISHED 7.4.2 ELECTRICAL TESTS AS PUBLISHED 7.4.3 TEST VALUES AS PUBLISHED II A TESTING ORGANIZATION THAT DOES NOT HAVE A “FULL MEMBERSHIP” IN NETA BUT MEETS ALL OTHER REQUIREMENTS OF

SECTION 3.1 AND 3.2, AND TESTS IN COMPLIANCE WITH NETA SPECIFICATIONS NOTED BELOW, MAY BE ALLOWED TO PERFORM THE TESTING IF ACCEPTABLE TO THE AUTHORITY HAVING JURISDICTION (AHJ) AND THE UTILITY. III. THE INSTALLER OF THE SYSTEM SHALL PROVIDE A WRITTEN TEST REPORT TO THE AHJ AND THE UTILITY’S INSPECTOR. THE AHJ WILL NOT RELEASE AN INSPECTION CLEARANCE TO THE UTILITY, NOR WILL THE UTILITY ENERGIZE ITS TRANSFORMER AND SERVICE UNTIL RECEIPT, REVIEW, AND ACCEPTANCE OF THE WRITTEN TEST REPORT. REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG010.1 1 OF 1 TESTING REQUIREMENTS FOR METAL-ENCLOSED SERVICE ENTRANCE AND UNMETERED FEEDER BUSWAYS

SCOPE: THIS STANDARD DESCRIBES SDG&E ELECTRIC SERVICE POLICIES FOR NEW AND EXISTING CUSTOMERS. DEFINITIONS: • PRACTICABLE: IN REFERENCE TO THE SERVICE DELIVERY POINT, PRACTICABLE IS DEFINED AS ANY BUILDING SURFACE, OTHER THAN THE BUILDING ENTRANCE (DOORS), GLASS WALLS, OR WINDOWS, WHICH IS ACCESSIBLE. DECORATIVE WALLS WILL BE CONSIDERED AS A PRACTICABLE LOCATION FOR THE PURPOSE OF LOCATING SERVICE TERMINATING ENCLOSURES. • ACCESSIBLE: IN REFERENCE TO TERMINATING ENCLOSURES, ACCESSIBLE IS DEFINED AS BEING READILY AND PERMANENTLY LOCATED ON OR RECESSED IN AN EXTERIOR WALL OF THE BUILDING SERVED, FACING OUTWARD. ATTENTION:  A TERMINATING ENCLOSURE SHALL BE PERMANENTLY ACCESSIBLE WITHOUT ENTERING THE BUILDING, SHALL NOT PROJECT INTO ANY DRIVEWAY, WALK OR PUBLIC WAY, AND SHALL PROVIDE ACCESS AND WORKING SPACE IN COMPLIANCE WITH ALL SERVICE STANDARDS & GUIDE REQUIREMENTS. BY SPECIAL PERMISSION, THE TERMINATING ENCLOSURE MAY BE INSTALLED IN AN ELECTRIC METER ROOM OR IN A PARKING STRUCTURE WHEN APPROVED BY THE UTILITY AND INSTALLED PER THE UTILITY'S APPLICABLE STANDARDS. a b

INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. SDG&E (UTILITY) WILL NOT NORMALLY PROVIDE MORE THAN ONE ELECTRIC SERVICE EXTENSION FOR ANY ONE BUILDING OR GROUP OF BUILDINGS, FOR A SINGLE ENTERPRISE ON A SINGLE PREMISE, EXCEPT: a. TARIFF SCHEDULES – WHERE OTHERWISE ALLOWED OR REQUIRED UNDER THE UTILITY'S TARIFF SCHEDULES, OR b. UTILITY CONVENIENCE – AT THE OPTION OF, AND AS DETERMINED BY THE UTILITY, FOR ITS OPERATING CONVENIENCE, CONSISTENT WITH ITS ENGINEERING DESIGN FOR DIFFERENT VOLTAGE AND PHASE CLASSIFICATION, OR WHEN REPLACING AN EXISTING SERVICE, OR c. ORDINANCE – WHERE REQUIRED BY ORDINANCE OR OTHER APPLICABLE LAW, FOR SUCH THINGS AS FIRE PUMPS, FIRE ALARM SYSTEMS, ETC. GENERAL INFORMATION: II. SERVICE DELIVERY POINT POLICY: NEW UNDERGROUND ELECTRIC SERVICE INSTALLATIONS SHALL COMPLY WITH THE UTILITY'S SERVICE DELIVERY POINT POLICY. GENERAL REQUIREMENTS: III. ONE SERVICE DELIVERY POINT WILL NORMALLY BE ESTABLISHED AS NEAR AS PRACTICABLE TO THE CLOSEST CORNER OF THE BUILDING WALL WHICH IS ACCESSIBLE, WITH A MINIMUM LENGTH OF SERVICE LATERAL CONDUCTORS FROM THE UTILITY'S

SOURCE. AESTHETICS WILL NOT BE CONSIDERED WHEN DETERMINING THE SERVICE DELIVERY POINT. a. ALL UTILITY METERS AND ASSOCIATED METERING EQUIPMENT SHALL BE LOCATED AT SOME PROTECTED LOCATION ON APPLICANT'S PREMISES AS APPROVED BY THE UTILITY. b. IN A BUILDING WITH TWO OR MORE TENANTS, OR WHERE THE UTILITY FURNISHES MORE THAN ONE METER ON THE SAME PREMISES, UTILITY'S METERS NORMALLY SHALL BE GROUPED AT ONE CENTRAL LOCATION. c. MORE THAN ONE GROUP OF METERS MAY BE ESTABLISHED WHERE ACCEPTABLE TO THE UTILITY, PROVIDED THE APPLICANT INSTALLS, OWNS, AND MAINTAINS THE SERVICE ENTRANCE CONDUIT(S) AND CONDUCTORS FROM THE SERVICE DELIVERY POINT (TERMINATING ENCLOSURE) TO EACH METER LOCATION IN COMPLIANCE WITH THE UTILITY'S REQUIREMENTS AND RECEIVES PRIOR APPROVAL FROM THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E

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NOTES (CONT’D): GENERAL REQUIREMENTS (CONT’D): III. (CONT’D): d. FOR SINGLE- AND MULTI-FAMILY RESIDENTIAL BUILDINGS, AND SINGLE- AND MULTI-OCCUPANCY COMMERCIAL AND INDUSTRIAL BUILDINGS, METERS MAY BE INSTALLED: OUTDOOR-MOUNTED ON OR RECESSED IN AN EXTERIOR BUILDING WALL. IN AN APPROVED METER ROOM. a METER LOCATIONS ARE NOT REQUIRED TO BE AT OR NEAR THE SERVICE DELIVERY POINT, BUT ARE TO BE LOCATED IN ACCORDANCE WITH THE UTILITY'S RULES AND SERVICE STANDARDS. c IV. TWO SERVICE DELIVERY POINTS TO A SINGLE BUILDING OR PREMISES MAY BE ESTABLISHED AT THE UTILITY'S OPTION IF ALL OF THE FOLLOWING REQUIREMENTS ARE MET: a. ALL ELECTRIC SERVICE POLICIES FOR NEW PROJECTS & EXISTING CUSTOMERS AS OUTLINED IN THIS STANDARD ARE MET; AND b. METERS ARE GROUPED AT OR NEAR EACH SERVICE DELIVERY POINT OR AT A LOCATION APPROVED BY THE UTILITY; AND c. THE APPROPRIATE AHJ APPROVES THE INSTALLATION. ALTERNATE SERVICE DELIVERY POINT REQUESTS: V. AN APPLICANT MAY REQUEST AN ALTERNATE SERVICE DELIVERY POINT THAT IS NOT NECESSARILY THE CORNER OF THE BUILDING

WALL CLOSEST TO THE UTILITY'S UNDERGROUND OR OVERHEAD SOURCE. THE REQUEST MAY BE APPROVED PROVIDED THE REQUESTED LOCATION IS ACCEPTABLE TO THE UTILITY'S PROJECT PLANNER, AND THE APPLICANT AGREES TO PAY FOR THE ADDITIONAL FACILITIES REQUIRED PER THE PROVISIONS OF RULE 2, I. SPECIAL FACILITIES AND MAINTENANCE. CONSULT WITH THE UTILITY’S PROJECT PLANNER FOR APPROVAL OF AN ALTERNATE SERVICE DELIVERY POINT IN THE PROJECT'S DESIGN PHASE TO AVOID PROJECT DELAYS AND TO OBTAIN COST INFORMATION. d SERVICE LOCATIONS: VI. THE SERVICE DELIVERY POINT MUST BE CONFIRMED IN WRITING BY THE UTILITY’S PROJECT PLANNER. IT IS IMPORTANT TO CONTACT THE UTILITY'S SERVICE PLANNING OR DESIGN & PROJECT MANAGEMENT REGIONAL OFFICE AND REQUEST AN ELECTRIC METER & SERVICE LOCATION FORM FOR THE FOLLOWING: e a. A NEW SERVICE CONNECTION IS BEING CONSIDERED FOR ANY TYPE OF PROJECT. b. ADDITIONS, ALTERATIONS, RENEWALS, OR A CHANGE IN THE ELECTRIC SERVICE DELIVERY POINT LOCATION IS BEING PROPOSED TO AN EXISTING SERVICE. THIS INCLUDES, BUT IS NOT LIMITED TO, REPLACEMENT OF CUSTOMER-OWNED SERVICE

ENTRANCE CONDUITS, CONDUCTORS, SERVICE EQUIPMENT, OR METERING ENCLOSURES. RIGHTS OF WAY: VII. THE UTILITY WILL OWN, OPERATE AND MAINTAIN DISTRIBUTION LINE EXTENSION FACILITIES ONLY AS FOLLOWS: a. ALONG PUBLIC STREETS, ALLEYS, ROADS, HIGHWAYS AND OTHER PUBLICLY DEDICATED WAYS AND PLACES WHICH THE UTILITY HAS THE LEGAL RIGHT TO OCCUPY (FRANCHISE AREAS); AND b. ON PUBLIC LANDS AND PRIVATE PROPERTY ACROSS WHICH RIGHTS OF WAY AND PERMITS SATISFACTORY TO THE UTILITY MAY BE OBTAINED WITHOUT COST TO OR CONDEMNATION BY THE UTILITY. VIII. THE CUSTOMER IS RESPONSIBLE FOR PROVIDING A CLEAR ROUTE, FREE OF OBSTRUCTIONS, WHICH WOULD INHIBIT THE CONSTRUCTION OF EITHER UNDERGROUND OR OVERHEAD SERVICE EXTENSIONS ON THEIR PROPERTY. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG011.2 2 OF 3 ELECTRIC SERVICE POLICIES NEW AND EXISTING CUSTOMERS

NOTES (CONT’D): RIGHTS OF WAY (CONT’D): IX. THE UTILITY CANNOT BE RESPONSIBLE FOR CORRECTING ANY PORTION OF THE CUSTOMER'S SERVICE INSTALLATION NECESSITATED BY THE CUSTOMER'S OR THEIR CONTRACTOR'S DEVIATION FROM THE UTILITY'S SERVICE STANDARDS & GUIDE REQUIREMENTS, OR WHERE THE SERVICE EQUIPMENT LOCATION WAS ASSUMED AND CONFLICTS WITH THE LOCATION APPROVED BY THE UTILITY'S PROJECT PLANNER. XI. A SERVICE LOCATION DOES NOT CONSTITUTE AN "APPLICATION FOR SERVICE". ENSURING AN APPLICATION FOR SERVICE HAS BEEN MADE FOR THE BILLING ACCOUNT CAN HELP AVOID DELAYS IN ESTABLISHING NEW ELECTRIC SERVICE. f SECONDARY SERVING VOLTAGES & CLASSIFICATION OF SERVICE INFORMATION: XII. THE FOLLOWING ARE THE UTILITY’S STANDARD SECONDARY SERVING VOLTAGES: a. SINGLE-PHASE – 120/240V, 120/208V, AND 240/480V (FOR HIGHWAY LIGHTING) VOLTS b. THREE-PHASE DELTA SERVING VOLTAGES – 120/240V AND 480V (CORNER-GROUNDED) VOLTS c. THREE-PHASE WYE SERVING VOLTAGES – 208Y/120V AND 480Y/277V d. A DIFFERENT CLASS OF SERVICE SHALL BE CONSIDERED TWO SERVICES WITH EACH HAVING A DIFFERENT "PHASE-TO-

NEUTRAL"OR "PHASE-TO-GROUND" VOLTAGE. XIII. THE FOLLOWING THREE-PHASE VOLTAGES ARE CONSIDERED DIFFERENT CLASSES OF SERVICE BY THE UTILITY: a. 208Y/120V OR 120/240V b. 480V (CORNER-GROUNDED) c. 480Y/277V d. "SINGLE-PHASE 120/208V AND THREE-PHASE 208Y/120V” ARE THE SAME CLASS OF SERVICE AND ARE NOT CONSIDERED BY THE UTILITY AS A DIFFERENT CLASS OF SERVICE THAN ''SINGLE-PHASE OR THREE-PHASE 120/240V". THIS IS BECAUSE THE PHASE- TO-NEUTRAL VOLTAGE IS THE SAME FOR ALL OF THEM (120V). REFERENCE: a SEE SG506: ELECTRIC METER ROOM. b SEE SG016: PULLING DEVICES FOR INSTALLATION OF SERVICE LATERAL CONDUCTORS IN PARKING STRUCTURES. c SEE SG510: ELECTRICAL METERING IN MID-RISE AND HIGH-RISE BUILDINGS. d SEE RULE 2, I. e SEE LISTING ON SG021. f FOR "APPLICATION FOR A BILLING ACCOUNT" INFORMATION, SEE SG004. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E

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SCOPE: THIS STANDARD IS INTENDED TO PROVIDE GUIDANCE TO DEVELOPERS, ARCHITECTS, ENGINEERS, ELECTRICAL CONTRACTORS, AND CONSULTANTS PLANNING CUSTOMERS’ NEW ELECTRICAL SERVICE NEEDS. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. GENERAL SERVICE REQUIREMENT TO MULTIPLE MULTI-UNIT BUILDINGS ON A SINGLE PREMISES: WHEN THERE IS MORE THAN ONE MULTI-UNIT BUILDING ON A SINGLE PREMISES, AN INDIVIDUAL SDG&E SERVICE IS GENERALLY REQUIRED TO EACH OF THE MULTI-UNIT BUILDINGS. BOTH RESIDENTIAL AND NON-RESIDENTIAL APPLICATIONS ARE SUBJECT TO THIS REQUIREMENT. a II. MULTI-FAMILY RESIDENTIAL BUILDINGS – LESS THAN 3 STORIES HIGH: ONE SERVICE PER BUILDING WILL BE GRANTED, UNLESS THE DISTANCE BETWEEN SERVICE POINTS AND METER LOCATIONS IS 300 FEET OR GREATER. IF THE SERVICE SIZE EXCEEDS 4,000A AND A SECOND SERVICE OF THE SAME CLASS IS REQUIRED, THE SERVICE POINTS WILL BE GROUPED AT ONE LOCATION UNLESS THE DISTANCE BETWEEN SERVICE POINTS IS 300 FEET OR GREATER. A SEPARATE SERVICE OF A DIFFERENT CLASS, NORMALLY 480Y/277V FOR SERVING HOUSE LOADS, MAY BE GRANTED

AND GROUPED WITH THE SERVICE(S) FOR THE MULTI-FAMILY DWELLING UNITS OR LOCATED AT A MORE CONVENIENT LOCATION ACCEPTABLE TO SDG&E’S (UTILITY’S) PROJECT PLANNER BASED ON THE DESIGN OF THE CUSTOMER'S ELECTRICAL SYSTEM AND THE UTILITY’S SERVICE DELIVERY POINT POLICY, AND WITH APPROVAL FROM THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). THERE IS NO MINIMUM DISTANCE REQUIRED BETWEEN SERVICES OF A DIFFERENT CLASS. RULE 16 WILL APPLY, AND THE RULE 15 RESIDENTIAL AND NON-RESIDENTIAL ALLOWANCES WILL BE APPLIED TO THE COST OF ALL SERVICES MEETING THE CRITERIA ABOVE. b c III. RESIDENTIAL OR MIXED USE BUILDINGS – 3 STORIES OR GREATER: THE CUSTOMER MAY RECEIVE AS MANY 3-PHASE, 208Y/120V SERVICES AS REQUIRED, NORMALLY GROUPED AT ONE LOCATION, TO SERVE THE DWELLING UNITS THAT MUST BE INDIVIDUALLY METERED BY THE UTILITY. THE PLANNER MAY APPROVE MORE THAN ONE SERVICE POINT AND METER LOCATION FOR SERVICES OF THE SAME CLASS IF THE DISTANCE BETWEEN THEM IS 300 FEET OR GREATER, OR WHEN IT IS IN THE BEST INTEREST OF THE UTILITY TO PROVIDE MULTIPLE SERVICE POINTS AND METER LOCATIONS.

A SEPARATE SERVICE OF A DIFFERENT CLASS, NORMALLY 480Y/277V, MAY BE GRANTED FOR HOUSE LOADS AND MAY BE GROUPED WITH THE SERVICE(S) FOR THE MULTI-FAMILY DWELLING UNITS OR LOCATED AT A MORE CONVENIENT LOCATION ACCEPTABLE TO THE PROJECT PLANNER BASED ON THE DESIGN OF THE CUSTOMER'S ELECTRICAL SYSTEM AND THE UTILITY’S SERVICE DELIVERY POINT POLICY, AND WITH APPROVAL FROM THE AHJ. THERE IS NO MINIMUM DISTANCE REQUIRED BETWEEN SERVICES OF A DIFFERENT CLASS. RULE 16 WILL APPLY AND THE RULE 15 RESIDENTIAL AND NON-RESIDENTIAL ALLOWANCES WILL BE APPLIED TO THE COST OF ALL SERVICES MEETING THE CRITERIA ABOVE. b c IV. RESIDENTIAL CONTIGUOUS DWELLINGS – TOWNHOUSES (ROW HOMES): EACH INDIVIDUAL TOWNHOUSE OR DUPLEX LOCATED ON A PARCEL OF LAND BOUNDED BY LEGAL PROPERTY LINES MUST BE PROVIDED WITH AN INDIVIDUAL ELECTRIC SERVICE AND METER(S) LOCATED ON THE PROPERTY SERVED. EACH INDIVIDUAL TOWNHOUSE OR DUPLEX LOCATED ON A SINGLE PARCEL OF PROPERTY DIVIDED WITH "ASSUMED PROPERTY LINES" MAY BE: a. PROVIDED WITH AN INDIVIDUAL ELECTRIC SERVICE AND METER(S) LOCATED ON THE TOWNHOUSE BOUNDED BY ASSUMED

PROPERTY LINES, OR © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG012.1 1 OF 3 ELECTRIC SERVICE POLICIES NEW PROJECT TYPES

NOTES (CONT’D): IV. RESIDENTIAL CONTIGUOUS DWELLINGS – TOWNHOUSES (ROW HOMES)(CONT’D): b. SERVED THROUGH A SINGLE SERVICE POINT, WITH METERS GROUPED AT ONE LOCATION IN A COMMON AREA REMOTE FROM THE BUILDINGS. EASEMENTS WILL BE REQUIRED TO BE ESTABLISHED AND RECORDED IN THE DEED OF EVERY TOWNHOUSE ALLOWING FOR PRIVATELY-OWNED ELECTRIC LINES TO CROSS ASSUMED PROPERTY LINES. THE UTILITY IS NOT INVOLVED IN THE EASEMENT PROCESS, BUT IT IS IMPORTANT FOR DEVELOPERS TO UNDERSTAND THIS REQUIREMENT. MAIN ELECTRIC SERVICE DISCONNECTS (MAXIMUM OF SIX) MAY BE GROUPED AT ONE LOCATION TO ACCOMMODATE GROUPING OF THE ELECTRIC SERVICE AND OF THE ELECTRIC SERVICE AND METERING EQUIPMENT. IF THE NUMBER OF SERVICE DISCONNECTS EXCEEDS SIX, A MAIN DISCONNECT WILL BE REQUIRED AHEAD OF ALL METERS AND THEIR RELATED METER SERVICE DISCONNECT. THE METER SERVICE DISCONNECT MUST BE LOCATED AT OR IMMEDIATELY ADJACENT TO THE METER. A 3/4- INCH OR LARGER ELECTRICAL CONDUIT MUST BE INSTALLED, PER THE REQUIREMENTS OF THE CALIFORNIA ELECTRICAL CODE

AND APPROVED BY THE AHJ, BETWEEN THE GROUPED METER LOCATION AND EACH INDIVIDUAL TOWNHOUSE. THIS CONDUIT WILL PROVIDE ACCESS FOR FUTURE INSTALLATION OF ALTERNATIVE ENERGY SOURCES, SUCH AS PHOTOVOLTAIC SYSTEMS. V. SINGLE PREMISES – MULTIPLE NON-RESIDENTIAL ENTERPRISES (SUCH AS SHOPPING CENTERS AND OFFICE BUILDINGS): ONE SERVICE PER BUILDING WILL BE GRANTED, UNLESS THE DISTANCE BETWEEN METER LOCATIONS IS GREATER THAN 300 FEET OR THE CUSTOMER IS REQUESTING TWO CLASSES OF SERVICE. IN THE CASE OF TWO CLASSES OF SERVICE, THE SERVICES MAY BE GROUPED AT THE SAME LOCATION, OR LOCATED AT TWO SEPARATE MORE CONVENIENT LOCATIONS ACCEPTABLE TO THE UTILITY’S PROJECT PLANNER BASED ON THE DESIGN OF THE CUSTOMER'S ELECTRICAL SYSTEM AND THE UTILITY’S SERVICE DELIVERY POINT POLICY, AND WITH APPROVAL FROM THE AHJ. THERE IS NO MINIMUM DISTANCE REQUIRED BETWEEN SERVICES OF A DIFFERENT CLASS. RULE 16 FOR SERVICE EXTENSIONS WILL APPLY, AND THE NON-RESIDENTIAL ALLOWANCES PER RULE 15 WILL BE APPLIED TO THE COST OF ALL SERVICES MEETING THE CRITERIA ABOVE. b c

SINGLE PREMISES – SINGLE NON-RESIDENTIAL ENTERPRISE (CUSTOMER): VI. NORMALLY, ONE SERVICE PER PREMISES SERVING A SINGLE ENTERPRISE WILL BE GRANTED, FOR EXAMPLE, SCHOOLS, CHURCH COMPLEXES, MANUFACTURING PLANTS, HOSPITALS, ETC. VII. IF THE PLANNED SECONDARY VOLTAGE SERVICE EXCEEDS 4,000A, THE UTILITY WILL PROVIDE A MAXIMUM OF 3 SECONDARY VOLTAGE SERVICES RATED AT NOT MORE THAN 4,000A EACH, AND THEY SHALL BE GROUPED TOGETHER AT A SINGLE LOCATION OR AT A LOCATION APPROVED BY THE PROJECT PLANNER AND THE AHJ, BASED ON THE CONFIGURATION AND CAPACITY OF THE UTILITY DISTRIBUTION SYSTEM AND GOOD ENGINEERING PRACTICE. LOADS GREATER THAN 3 AT 4,000A (MAXIMUM 12,000A AT SECONDARY VOLTAGE) WILL REQUIRE THE CUSTOMER TO INSTALL A MEDIUM VOLTAGE SERVICE AND PRIMARY METERING EQUIPMENT. VIII. IF MORE THAN ONE SECONDARY VOLTAGE SERVICE IS REQUIRED BECAUSE THE SERVICE SIZE EXCEEDS 4,000A, RULE 16 FOR SERVICE EXTENSIONS WILL APPLY AND RULE 15 NON-RESIDENTIAL ALLOWANCES WILL BE APPLIED TO THE COST OF ALL SERVICES GROUPED AT ONE LOCATION.

WHEN THE UTILITY DETERMINES IT IS IN THE CUSTOMER'S BEST INTEREST FOR THE UTILITY TO APPROVE A SECOND OR THIRD SECONDARY VOLTAGE SERVICE OF THE SAME CLASS NOT GROUPED AT ONE LOCATION, THE CUSTOMER WILL PAY FOR ONLY THE ADDITIONAL FACILITIES REQUIRED PER THE PROVISIONS OF RULE 2, SPECIAL FACILITIES, UNLESS THE MINIMUM DISTANCE BETWEEN ALL SERVICES IS AS FOLLOWS: b c d a. 120/240V OR 208Y/120V – 500 FEET MINIMUM SEPARATION BETWEEN SERVICES OF THE SAME CLASS IS REQUIRED. b. 480Y/277V – 1,000 FEET MINIMUM SEPARATION BETWEEN SERVICES OF THE SAME CLASS IS REQUIRED. IX. IF THE CUSTOMER REQUESTS A SECOND CLASS OF SECONDARY VOLTAGE SERVICE, ALL SERVICES MAY BE GROUPED AT THE SAME LOCATION, OR THE SERVICE OF A DIFFERENT CLASS MAY BE LOCATED AT A MORE CONVENIENT LOCATION ACCEPTABLE TO THE PROJECT PLANNER AND THE AHJ BASED ON THE DESIGN OF THE CUSTOMER'S ELECTRICAL SYSTEM AND THE UTILITY’S SERVICE DELIVERY POINT POLICY. THERE IS NO MINIMUM DISTANCE REQUIRED BETWEEN SERVICES OF A DIFFERENT CLASS. RULE 16 FOR

SERVICE EXTENSIONS WILL APPLY AND THE NON-RESIDENTIAL ALLOWANCES PER RULE 15 WILL BE APPLIED TO THE COST OF THE SECOND SERVICE OF A DIFFERENT CLASS. b c © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG012.2 2 OF 3 ELECTRIC SERVICE POLICIES NEW PROJECT TYPES

XI. SINGLE PREMISES – SINGLE RESIDENTIAL CUSTOMER WITH OTHER ELECTRIC USES: ONE SERVICE PER PREMISES WILL BE GRANTED. A SECOND SERVICE MAY BE APPROVED FOR OTHER ELECTRIC USES SUCH AS AN ACCESSORY DWELLING UNIT (ADU), WELLS, BARNS, GARAGES, ETC., PROVIDED THE LOCATION IS MORE THAN 150 FEET FROM THE EXISTING SERVICE AND METER LOCATION AT THE RESIDENCE, AND THE AHJ APPROVES A SECOND SERVICE AND METER ON THE PROPERTY. WHEN BOTH OF THESE CONDITIONS ARE MET, RULE 16 WILL APPLY, AND THE RULE 15 NON-RESIDENTIAL ALLOWANCE WILL BE APPLIED TO THE COST OF THE SECOND SERVICE. b c XII. SINGLE PREMISES – MULTIPLE RESIDENTIAL CUSTOMERS: EACH SEPARATE STRUCTURE CONTAINING MORE THAN SIX LEGAL DWELLING UNITS, OR MORE THAN FIVE LEGAL DWELLING UNITS AND A HOUSE METER, MUST BE INDIVIDUALLY SERVED BY THE UTILITY. EACH DWELLING UNIT MUST BE INDIVIDUALLY METERED BY THE UTILITY. RULE 16 FOR SERVICE EXTENSIONS AND THE RESIDENTIAL ALLOWANCES PER RULE 15 FOR EACH DWELLING UNIT WILL APPLY TO EACH SERVICE. APPROVAL BY THE AHJ IS REQUIRED. b c REFERENCE: a FOR FURTHER DETAILS, SEE SG014. b SEE RULE 16.

c SEE RULE 15. d SEE RULE 2. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG012.3 3 OF 3 ELECTRIC SERVICE POLICIES NEW PROJECT TYPES

SCOPE: THIS STANDARD IS INTENDED TO PROVIDE GUIDANCE TO DEVELOPERS, ARCHITECTS, ENGINEERS, ELECTRICAL CONTRACTORS, AND CONSULTANTS WORKING WITH AN EXISTING CUSTOMER PLANNING FOR ADDITIONS TO THEIR ELECTRICAL SERVICE(S) OR REMOTE METER LOCATIONS. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. GENERAL SERVICE REQUIREMENT TO MULTIPLE MULTI-UNIT BUILDINGS ON A SINGLE PREMISES: WHEN THERE IS MORE THAN ONE MULTI-UNIT BUILDING ON A SINGLE PREMISES, AN INDIVIDUAL SDG&E SERVICE IS GENERALLY REQUIRED TO EACH OF THE MULTI-UNIT BUILDINGS. BOTH RESIDENTIAL AND NON-RESIDENTIAL APPLICATIONS ARE SUBJECT TO THIS REQUIREMENT. a II. MULTI-FAMILY RESIDENTIAL BUILDINGS – LESS THAN 3 STORIES HIGH: a. CUSTOMER REQUESTS FOR A SECOND SERVICE OF THE SAME CLASS WILL NOT BE GRANTED UNLESS THE SERVICE SIZE EXCEEDS 4,000A. WHEN THE SERVICE SIZE WILL EXCEED 4,000A, A SECOND SERVICE OF THE SAME CLASS MAY BE GROUPED AS CLOSE AS PRACTICAL TO THE EXISTING SERVICE OR A SECOND SERVICE A MINIMUM OF 300 FEET APART MAY BE GRANTED.

RULE 16 WILL APPLY, AND RULE 15 ALLOWANCES MAY BE GRANTED FOR THE SECOND SERVICE REQUEST BASED ON THE TYPE OF LOAD ADDITIONS. FOR EXAMPLE, IF THE LOAD ADDITIONS ARE IN THE EXISTING DWELLING UNITS ONLY, NO ALLOWANCES WILL BE GIVEN. IF HOUSE LOADS ARE BEING ADDED THROUGH A NEW SERVICE AND METER, ALLOWANCES FOR THE INCREMENTAL LOAD INCREASE WILL BE GRANTED. b c b. A SEPARATE SERVICE OF A DIFFERENT CLASS, NORMALLY 480Y/277V, MAY BE GRANTED FOR HOUSE LOADS AND MAY BE GROUPED WITH THE SERVICE(S) FOR THE MULTI-FAMILY DWELLING UNITS OR LOCATED AT A MORE CONVENIENT LOCATION ACCEPTABLE TO THE PROJECT PLANNER BASED ON THE DESIGN OF THE CUSTOMER'S ELECTRICAL SYSTEM AND THE UTILITY’S SERVICE DELIVERY POINT POLICY AND WITH APPROVAL FROM THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). THERE IS NO MINIMUM DISTANCE REQUIRED BETWEEN SERVICES OF A DIFFERENT CLASS. RULE 16 FOR SERVICE EXTENSIONS AND THE NON-RESIDENTIAL ALLOWANCES FOR THE INCREMENTAL LOAD INCREASE PER RULE 15 WILL APPLY TO THE SECOND SERVICE. b c III. RESIDENTIAL OR MIXED USE BUILDINGS – 3 STORIES OR GREATER:

THE CUSTOMER MAY RECEIVE AS MANY 3-PHASE, 208Y/120V SERVICES AS REQUIRED, NORMALLY GROUPED AT ONE LOCATION, TO SERVE THE DWELLING UNITS THAT MUST BE INDIVIDUALLY METERED BY THE UTILITY. THE PROJECT PLANNER MAY APPROVE MORE THAN ONE SERVICE POINT AND METER LOCATION FOR SERVICES OF THE SAME CLASS IF THE DISTANCE BETWEEN THEM IS 300 FEET OR GREATER, OR WHEN IT IS IN THE BEST INTEREST OF THE UTILITY TO PROVIDE MULTIPLE SERVICE POINTS AND METER LOCATIONS. A SEPARATE SERVICE OF A DIFFERENT CLASS, NORMALLY 480Y/277V, MAY BE GRANTED FOR HOUSE LOADS AND MAY BE GROUPED WITH THE SERVICE(S) FOR THE MULTI-FAMILY DWELLING UNITS OR LOCATED AT A MORE CONVENIENT LOCATION ACCEPTABLE TO THE PROJECT PLANNER BASED ON THE DESIGN OF THE CUSTOMER'S ELECTRICAL SYSTEM AND THE UTILITY’S SERVICE DELIVERY POINT POLICY, AND WITH APPROVAL FROM THE AHJ. THERE IS NO MINIMUM DISTANCE REQUIRED BETWEEN SERVICES OF A DIFFERENT CLASS. RULE 16 WILL APPLY AND THE RULE 15 RESIDENTIAL AND NON-RESIDENTIAL ALLOWANCES WILL BE APPLIED TO THE COST OF ALL SERVICES MEETING THE CRITERIA ABOVE. b c IV.

RESIDENTIAL CONTIGUOUS DWELLINGS – TOWNHOUSES (ROW HOMES): EACH INDIVIDUAL TOWNHOUSE OR DUPLEX LOCATED ON A PARCEL OF LAND BOUNDED BY LEGAL PROPERTY LINES MUST BE PROVIDED WITH AN INDIVIDUAL ELECTRIC SERVICE AND METER(S) LOCATED ON THE PROPERTY SERVED. EACH INDIVIDUAL TOWNHOUSE OR DUPLEX LOCATED ON A SINGLE PARCEL OF PROPERTY DIVIDED WITH "ASSUMED PROPERTY LINES" MAY BE: a. PROVIDED WITH AN INDIVIDUAL ELECTRIC SERVICE AND METER(S) LOCATED ON THE TOWNHOUSE BOUNDED BY ASSUMED PROPERTY LINES, OR © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG013.1 1 OF 3 ELECTRIC SERVICE POLICIES EXISTING CUSTOMER

NOTES (CONT’D): IV. RESIDENTIAL CONTIGUOUS DWELLINGS – TOWNHOUSES (ROW HOMES) (CONT’D): b. SERVED THROUGH A SINGLE SERVICE POINT, WITH METERS GROUPED AT ONE LOCATION IN A COMMON AREA REMOTE FROM THE BUILDINGS. EASEMENTS WILL BE REQUIRED TO BE ESTABLISHED AND RECORDED IN THE DEED OF EVERY TOWNHOUSE ALLOWING FOR PRIVATELY-OWNED ELECTRIC LINES TO CROSS ASSUMED PROPERTY LINES. THE UTILITY IS NOT INVOLVED IN THE EASEMENT PROCESS, BUT IT IS IMPORTANT FOR DEVELOPERS TO UNDERSTAND THIS REQUIREMENT. MAIN ELECTRIC SERVICE DISCONNECTS (MAXIMUM OF SIX) MAY BE GROUPED AT ONE LOCATION TO ACCOMMODATE GROUPING OF THE ELECTRIC SERVICE AND OF THE ELECTRIC SERVICE AND METERING EQUIPMENT. IF THE NUMBER OF SERVICE DISCONNECTS EXCEEDS SIX, A MAIN DISCONNECT WILL BE REQUIRED AHEAD OF ALL METERS AND THEIR RELATED METER SERVICE DISCONNECT. THE METER SERVICE DISCONNECT MUST BE LOCATED AT OR IMMEDIATELY ADJACENT TO THE METER. A 3/4- INCH OR LARGER ELECTRICAL CONDUIT MUST BE INSTALLED, PER THE REQUIREMENTS OF THE CALIFORNIA ELECTRICAL CODE

AND APPROVED BY THE AHJ, BETWEEN THE GROUPED METER LOCATION AND EACH INDIVIDUAL TOWNHOUSE. THIS CONDUIT WILL PROVIDE ACCESS FOR FUTURE INSTALLATION OF ALTERNATIVE ENERGY SOURCES, SUCH AS PHOTOVOLTAIC SYSTEMS. V. SINGLE PREMISES–MULTIPLE NON-RESIDENTIAL ENTERPRISES (SUCH AS SHOPPING CENTERS & OFFICE BUILDINGS): a. CUSTOMER REQUESTS FOR A SECOND SERVICE OF THE SAME CLASS TO SERVE AN EXISTING BUILDING WILL NOT BE GRANTED UNLESS THE SERVICE SIZE EXCEEDS 4,000A. WHEN THE SERVICE SIZE WILL EXCEED 4,000A, A SECOND SERVICE OF THE SAME CLASS MAY BE GROUPED AS CLOSE AS PRACTICAL TO THE EXISTING SERVICE OR A SECOND SERVICE A MINIMUM OF 300 FEET APART MAY BE GRANTED. RULE 15 ALLOWANCES WILL BE GRANTED FOR THE SECOND SERVICE REQUEST BASED ON THE INCREMENTAL LOAD INCREASE. c b. REQUESTS FOR A SECOND CLASS OF SERVICE WILL BE GRANTED AND MAY BE GROUPED WITH THE EXISTING SERVICE(S) OR LOCATED AT A MORE CONVENIENT LOCATION ACCEPTABLE TO THE PLANNER AND THE AHJ BASED ON THE DESIGN OF THE CUSTOMER'S ELECTRICAL SYSTEM AND THE UTILITY’S SERVICE DELIVERY POINT POLICY. THERE IS NO MINIMUM DISTANCE

REQUIRED BETWEEN SERVICES OF A DIFFERENT CLASS. THIS APPLIES TO AN EXISTING PRIMARY METERED CUSTOMER WHO IS ALLOWING A NEW SEPARATE ENTERPRISE TO OPERATE A BUSINESS ON THE SINGLE PREMISES. A SECONDARY VOLTAGE SERVICE WILL BE GRANTED AT A LOCATION APPROVED BY THE PROJECT PLANNER AND THE AHJ. RULE 16 FOR SERVICE EXTENSIONS AND THE NON-RESIDENTIAL ALLOWANCES PER RULE 15 WILL APPLY TO THE SECOND SERVICE. b c c. AREA SEPARATION WALLS CONSTRUCTED AS PART OF A TENANT IMPROVEMENT MAY RESULT IN THE CREATION OF A SEPARATE BUILDING CONTIGUOUS WITH THE EXISTING BUILDING. WHEN THE BUILDING OFFICIAL CONFIRMS IN WRITING A NEW SEPARATE BUILDING HAS BEEN CREATED, A NEW GAS AND/OR ELECTRIC SERVICE IS ALLOWED PROVIDED THERE IS SPACE ON THE BUILDING FOR THE SERVICE AND METERING EQUIPMENT. RULE 16 FOR SERVICE EXTENSIONS WILL APPLY AND THE NON-RESIDENTIAL ALLOWANCES PER RULE 15 MAY BE GRANTED FOR THE NEW SERVICE REQUEST IF THERE IS AN INCREMENTAL LOAD INCREASE. b c VI. SINGLE PREMISES – SINGLE NON-RESIDENTIAL ENTERPRISE (CUSTOMER): a.

THE CUSTOMER WILL NOT BE GRANTED BOTH A PRIMARY METERED SERVICE AND A SECONDARY VOLTAGE SERVICE, EVEN THOUGH THE SERVICES ARE TECHNICALLY A DIFFERENT CLASS. IF A CUSTOMER'S LOAD REQUIREMENTS EXCEED 3 AT 4,000A SECONDARY VOLTAGE SERVICE, THE CUSTOMER WILL BE REQUIRED TO TAKE SERVICE AT A PRIMARY VOLTAGE LEVEL AND INSTALL PRIMARY METERING MEDIUM VOLTAGE SWITCHGEAR. b. EXCEPTION: WHEN AN EXISTING PRIMARY METERED CUSTOMER REQUESTS A NEW SECONDARY VOLTAGE SERVICE WITH THE INTENT OF REMOVING THEIR EXISTING PRIMARY METERED SERVICE, WE WILL PROVIDE UP TO 3 SECONDARY VOLTAGE SERVICES, NOT EXCEEDING 3 AT 4,000A EACH. RULE 15, SECTION I, ITEM 1, FACILITY RELOCATION OR REARRANGEMENT, WILL APPLY. THE CUSTOMER IS RESPONSIBLE FOR THE TOTAL ESTIMATED INSTALLED COST OF THE NEW FACILITIES AND REMOVAL OF THE EXISTING PRIMARY METERED SERVICE, INCLUDING THE METERING. IF THE CUSTOMER IS ADDING LOAD AND THE EXISTING PRIMARY METERED SERVICE WAS ADEQUATE TO SERVE THE LOAD ADDITIONS, THE CUSTOMER WILL NOT BE GRANTED RULE 15 ALLOWANCES FOR THE INCREMENTAL LOAD INCREASE. THE CUSTOMER IS ALLOWED TO CONTINUE

RECEIVING PRIMARY METERED SERVICE AND THE NEW SECONDARY VOLTAGE SERVICE FOR A MAXIMUM OF FIVE YEARS AND SHALL PROVIDE THE PLANNER WRITTEN CONFIRMATION OF THEIR ACCEPTANCE OF THE MAXIMUM TIMEFRAME FOR REMOVAL OF THE EXISTING PRIMARY METERED SERVICE. THIS WILL ALLOW THE CUSTOMER ADEQUATE TIME TO RE-FEED THEIR ELECTRICAL LOADS FROM THE NEW SECONDARY VOLTAGE SOURCE(S) AND FACILITATE A PHASED APPROACH WHEN MORE THAN ONE SECONDARY VOLTAGE SERVICE IS NEEDED. TYPICALLY, PLANNERS WILL RECEIVE THIS TYPE OF REQUEST FROM SCHOOL DISTRICTS OR CAMPUS TYPE FACILITIES. c d © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG013.2 2 OF 3 ELECTRIC SERVICE POLICIES EXISTING CUSTOMER

NOTES (CONT’D): VI. SINGLE PREMISES – SINGLE NON-RESIDENTIAL ENTERPRISE (CUSTOMER) (CONT’D): c. WHEN THE UTILITY DETERMINES IT IS IN THE CUSTOMER'S BEST INTEREST FOR THE UTILITY TO APPROVE A SECOND OR THIRD SECONDARY VOLTAGE SERVICE OF THE SAME CLASS NOT GROUPED WITH THE EXISTING SERVICE AT ONE LOCATION, THE CUSTOMER WILL PAY FOR ONLY THE ADDITIONAL FACILITIES REQUIRED PER THE PROVISIONS OF RULE 2, SECTION I, ITEM 1, SPECIAL FACILITIES AND MAINTENANCE, UNLESS THE MINIMUM DISTANCE BETWEEN THE EXISTING AND ALL PROPOSED NEW SERVICES ARE AS FOLLOWS: e TABLE 1 REQUIRED MINIMUM SEPARATION BETWEEN SERVICES OF THE SAME CLASS SERVICE MINIMUM SEPARATION (V) (FT) 120/240 500 208Y/120 480Y/277 1,000 d. RULE 16 FOR SERVICE EXTENSIONS WILL APPLY WHEN THE ABOVE CRITERIA IS MET, AND THE NON-RESIDENTIAL ALLOWANCES PER RULE 15 MAY BE GRANTED FOR THE NEW SERVICE REQUEST IF THERE IS AN INCREMENTAL LOAD INCREASE. b c e. REQUESTS FOR A SECOND CLASS OF SECONDARY VOLTAGE SERVICE WILL BE GRANTED AND MAY BE GROUPED WITH THE

EXISTING SERVICE(S) OR LOCATED AT A MORE CONVENIENT LOCATION ACCEPTABLE TO THE PROJECT PLANNER AND THE AHJ BASED ON THE DESIGN OF THE CUSTOMER'S ELECTRICAL SYSTEM AND THE UTILITY’S SERVICE DELIVERY POINT POLICY. THERE IS NO MINIMUM DISTANCE REQUIRED BETWEEN SERVICES OF A DIFFERENT CLASS. RULE 16 FOR SERVICE EXTENSIONS AND THE NON-RESIDENTIAL ALLOWANCES PER RULE 15 WILL APPLY TO THE SECOND SERVICE. b c VII. SINGLE PREMISES - SINGLE RESIDENTIAL CUSTOMER WITH OTHER ELECTRIC USES: ONE SERVICE PER PREMISES WILL BE GRANTED. A SECOND SERVICE MAY BE APPROVED FOR OTHER ELECTRIC USES SUCH AS AN ACCESSORY DWELLING UNIT (ADU), WELLS, BARNS, GARAGES, ETC., PROVIDED THE LOCATION IS MORE THAN 150 FEET FROM THE EXISTING SERVICE AND METER LOCATION AT THE RESIDENCE, AND THE AHJ APPROVES A SECOND SERVICE AND METER ON THE PROPERTY. WHEN BOTH OF THESE CONDITIONS ARE MET, RULE 16 WILL APPLY, AND THE RULE 15 NON-RESIDENTIAL ALLOWANCE WILL BE APPLIED TO THE COST OF THE SECOND SERVICE. b c VIII. SINGLE PREMISES – MULTIPLE RESIDENTIAL CUSTOMERS:

EACH SEPARATE STRUCTURE CONTAINING MORE THAN SIX LEGAL DWELLING UNITS, OR MORE THAN FIVE LEGAL DWELLING UNITS AND A HOUSE METER, MUST BE INDIVIDUALLY SERVED BY THE UTILITY. EACH DWELLING UNIT MUST BE INDIVIDUALLY METERED BY THE UTILITY. RULE 16 FOR SERVICE EXTENSIONS AND THE RESIDENTIAL ALLOWANCES PER RULE 15 FOR EACH DWELLING UNIT WILL APPLY TO EACH SERVICE. APPROVAL BY THE AHJ IS REQUIRED. b c REFERENCE: a SEE SG014: ELECTRIC SERVICE POLICIES – EXISTING CUSTOMER FEEDER EXCEPTIONS. b SEE RULE 16. c SEE RULE 15. d SEE RULE 15, SECTION 1, ITEM 1: FACILITY RELOCATION OR REARRANGEMENT. e SEE RULE 2, SECTION 1, ITEM 1: SPECIAL FACILITIES AND MAINTENANCE. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES

SHEET SG013.3 3 OF 3 ELECTRIC SERVICE POLICIES EXISTING CUSTOMER

SCOPE: THIS STANDARD DESCRIBES ELECTRIC SERVICE POLICIES EXCEPTIONS FOR EXISTING CUSTOMER FEEDERS. CITY STREET BREEZEWAY ACCESS 2 OR MORE UNITS IN FRONT BUILDING 3 9 0 CITY STREET 12 1 UNIT REAR BUILDING 2 15 9 0 1 16 ALLEY 9 0 FIGURE 1 SERVICE AND METERING REQUIREMENT SINGLE PREMISES WITH MULTIPLE BUILDINGS Ib II VII POSSIBLE EXCEPTION SCENARIO SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG014.1 1 OF 6 ELECTRIC SERVICE POLICIES EXISTING CUSTOMER FEEDER EXCEPTIONS

ALLEY 13 16 4 UNITS 15 12 6 9 4 0 9 9 9 0 0 2 UNITS CITY STREET 4 9 0 2 UNITS CITY STREET FIGURE 2 SERVICE AND METERING REQUIREMENT SINGLE PREMISES WITH MULTIPLE BUILDINGS Ib III VII POSSIBLE EXCEPTION SCENARIO SEE TABLE 1 © 1998 – 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG014.2 2 OF 6 ELECTRIC SERVICE POLICIES EXISTING CUSTOMER FEEDER EXCEPTIONS

ALLEY 4 UNITS 15 16 14 9 9 6 0 9 13 0 2 UNITS 7 9 11 0 8 CITY STREET 9 0 10 2 UNITS 1 UNIT CITY STREET FIGURE 3 SERVICE AND METERING REQUIREMENT SINGLE PREMISES WITH MULTIPLE BUILDINGS Ib IV VII POSSIBLE EXCEPTION SCENARIO SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG014.3 3 OF 6 ELECTRIC SERVICE POLICIES EXISTING CUSTOMER FEEDER EXCEPTIONS

CITY STREET 5 9 0 2 OR MORE VIII 17 UNITS CITY STREET 18 1 UNIT 9 15 9 0 2 16 9 ALLEY 0 FIGURE 4 SERVICE AND METERING REQUIREMENT SINGLE PREMISES WITH MULTIPLE BUILDINGS SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG014.4 4 OF 6 ELECTRIC SERVICE POLICIES EXISTING CUSTOMER FEEDER EXCEPTIONS

TABLE 1 FIGURE ITEMS ITEM DESCRIPTION DETAILS 1 METER, NEW FOR REAR BUILDING 2 METER, ONE 2 3 METERS, GROUP FOR FRONT BUILDING 4 METERS, GROUP 2 NEW 5 METERS, GROUP 2 OR MORE 6 METERS, GROUP 4 NEW 7 METERS, GROUP, NEW FOR 2 UNITS AND 1 UNIT IN ADJACENT BUILDING (SOUTH) 8 METERS, GROUP, NEW FOR 2 UNITS 9 METER LOCATION, GROUPED, EXISTING FOR ALL UNITS ON PARCEL 10 CONDUCTORS, FEEDER, NEW METERED CUSTOMER 11 CONDUCTORS, SERVICE ENTRANCE UNDERGROUND OR OVERHEAD, WITH AHJ APPROVAL 12 CONDUCTORS, SERVICE ENTRANCE, NEW BY CUSTOMER EITHER UNDERGROUND OR OVERHEAD WITH AHJ APPROVAL 13 CONDUCTORS, SERVICE ENTRANCE, NEW BY CUSTOMER - SEALABLE JUNCTION/TAP ENCLOSURE 14 CONDUCTORS, SERVICE ENTRANCE, NEW CUSTOMER 15 POINT OF ATTACHMENT (POA), EXISTING 16 POINT OF ATTACHMENT (POA), NEW 17 SERVICE, UNDERGROUND OR OVERHEAD, NEW DIRECT FROM SDG&E SOURCE 18 SPACE ADEQUATE TO RUN SERVICE BETWEEN PROPERTY LINE AND EXISTING BUILDING INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. SINGLE PREMISES WITH MULTIPLE BUILDINGS – SERVICE & METERING REQUIREMENTS: a.

FOR COMPLIANCE WITH THE CALIFORNIA ELECTRICAL CODE, ARTICLE 225.30, AN INDIVIDUAL SDG&E (UTILITY) SERVICE DROP OR SERVICE LATERAL WILL BE PROVIDED TO EACH BUILDING CONTAINING 2 OR MORE RESIDENTIAL OR NON- RESIDENTIAL UNITS LOCATED ON A SINGLE PARCEL OF LAND. EACH BUILDING WILL HAVE THE METERS FOR THE UNITS WITHIN THAT BUILDING GROUPED AT ONE CENTRAL LOCATION. THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) SHALL APPROVE AND INSPECT THE CUSTOMER’S PREMISES WIRING SYSTEM. a b EXCEPTION: FOR REWIRES OR CONVERSION OF SERVICE FROM OVERHEAD TO UNDERGROUND ON EXISTING PARCELS WITH 2 OR MORE MULTI-UNIT BUILDINGS, IT IS SOMETIMES IMPRACTICABLE TO ESTABLISH A DIRECT SERVICE FROM THE UTILITY SOURCE TO REAR OR REMOTELY LOCATED BUILDINGS ON THE PARCEL. FOR EXAMPLE, IF THERE IS A STRUCTURE BUILT LOT LINE TO LOT LINE BETWEEN THE UTILITY SOURCE AND ANOTHER MULTI-UNIT BUILDING ON THE SAME PARCEL, AN INDIVIDUAL UTILITY SERVICE TO THE OTHER MULTI-UNIT BUILDING WOULD BE CONSIDERED IMPRACTICABLE. CUSTOMER-

OWNED AND -INSTALLED SERVICE ENTRANCE CONDUCTORS OR UNMETERED FEEDER WILL BE ALLOWED BETWEEN BUILDINGS IN THESE SITUATIONS BY DEVIATION ONLY. THIS IS BY EXCEPTION AND APPLIES ONLY WHEN APPROVED IN ADVANCE BY SDG&E SERVICE STANDARDS. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG014.5 5 OF 6 ELECTRIC SERVICE POLICIES EXISTING CUSTOMER FEEDER EXCEPTIONS

NOTES (CONT’D): II THIS STANDARD APPLIES ONLY WHEN STANDARD OH OR UG SERVICE CANNOT BE ESTABLISHED TO BOTH BUILDINGS DUE TO PHYSICAL CONSTRUCTION LIMITATIONS. A DEVIATION IS REQUIRED FROM SERVICE STANDARDS BEFORE NEGOTIATING THIS METHOD OF SERVICE WITH THE CUSTOMER OR THEIR CONTRACTOR, OR ON A CONVERSION PROJECT. III THIS STANDARD APPLIES ONLY WHEN STANDARD OH OR UG SERVICE CANNOT BE ESTABLISHED TO ALL BUILDINGS DUE TO PHYSICAL CONSTRUCTION LIMITATIONS. A DEVIATION IS REQUIRED FROM SERVICE STANDARDS BEFORE NEGOTIATING THIS METHOD OF SERVICE WITH THE CUSTOMER OR THEIR CONTRACTOR, OR ON A CONVERSION PROJECT. IV THIS STANDARD APPLIES ONLY WHEN STANDARD OH OR UG SERVICE CANNOT BE ESTABLISHED TO ALL BUILDINGS WITH MULTIPLE TENANTS DUE TO PHYSICAL CONSTRUCTION LIMITATIONS. A DEVIATION IS REQUIRED FROM SERVICE STANDARDS BEFORE NEGOTIATING THIS METHOD OF SERVICE WITH THE CUSTOMER OR THEIR CONTRACTOR, OR ON A CONVERSION PROJECT. V. SDG&E SOURCE IN ALLEY AND NO SDG&E SOURCE ON STREET SIDE OF PARCEL. VI.

A PLAQUE IS REQUIRED AT EACH METER LOCATION CONNECTED TO THE SERVICE IDENTIFYING THE LOCATION OF ALL METER LOCATIONS SERVED. b VII SERVICE ENTRANCE CONDUITS INSTALLED UNDERGROUND BETWEEN BUILDINGS SHALL BE CONCRETE-ENCASED (ONE SACK SLURRY). VIII EXCEPTION NOT GRANTED IN THIS SCENARIO REFERENCE: a SEE CALIFORNIA ELECTRIC CODE, ARTICLE 225.30. b FOR PLAQUE SPECIFICATIONS AND EXAMPLES, SEE SG017. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG014.6 6 OF 6 ELECTRIC SERVICE POLICIES EXISTING CUSTOMER FEEDER EXCEPTIONS

SCOPE: THIS STANDARD PROVIDES SDG&E (UTILITY) LINE TRUCK ACCESS REQUIREMENTS TO TERMINATING ENCLOSURES. DEFINITIONS: • LINE TRUCK ACCESS: A MINIMUM 16-FOOT WIDE "ALL WEATHER" DRIVEN WAY OF SUFFICIENT STRENGTH TO SUPPORT A TRUCK WEIGHT CLASS H20 (20 TONS), WITH A CLEAR HEIGHT OF 13'-6" AND A 40-FOOT MINIMUM TURNING RADIUS MEASURED FROM INSIDE CURB. • PICK-UP TRUCK ACCESS: A MINIMUM 8-FOOT HEIGHT CLEARANCE, 14-FOOT MINIMUM TURNING RADIUS MEASURED FROM INSIDE CURB, AND 14-FOOT WIDE ALL WEATHER DRIVEN WAY OF SUFFICIENT STRENGTH TO SUPPORT A MINIMUM TRUCK WEIGHT OF 4,000 POUNDS. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. THE MAXIMUM DISTANCE FROM LINE TRUCK ACCESS TO AN ELECTRIC METER ROOM DOOR APPLIES WHEN THE TERMINATING ENCLOSURE IS LOCATED IN THE ELECTRIC METER ROOM DIRECTLY IN FRONT OF THE ACCESS DOOR, OR WHEN THE TERMINATING ENCLOSURE IS LOCATED ON AN EXTERIOR BUILDING WALL. THE MAXIMUM DISTANCE IS DEPENDENT UPON THE SIZE OF THE ELECTRIC SERVICE. LARGER SERVICES REQUIRE LARGER DIAMETER AND GREATER NUMBER OF CONDUITS TO SERVE THE CUSTOMER'S ULTIMATE ELECTRICAL NEEDS. a.

IF THE TERMINATING ENCLOSURE IS WITHIN A METER ROOM AND LOCATED OTHER THAN DIRECTLY IN FRONT OF THE ACCESS DOOR, PULLING EYE HOOKS AND COIL INSERTS MAY BE REQUIRED TO RIG CABLE PULLING OPERATIONS. CONSULT WITH THE UTILITY'S PROJECT PLANNER IF THIS IS PROPOSED. a II. THE MAXIMUM SIZE CONDUCTOR THE UTILITY INSTALLS IS 1,000 KCMIL ALUMINUM CONDUCTORS IN A 5-INCH CONDUIT. THE MAXIMUM DISTANCES SHOWN IN TABLE 1 HAVE BEEN ESTABLISHED TO HELP ENSURE A SAFE INSTALLATION AND TO SHORTEN RESTORATION TIME SHOULD A CABLE FAILURE OCCUR DURING THE LIFE OF THE SERVICE. III. ALL ELECTRIC METER ROOMS WITHOUT THE TERMINATING ENCLOSURE LOCATED INSIDE THE ELECTRIC METER ROOM SHALL BE A MAXIMUM OF 100 FEET FROM PICK-UP TRUCK ACCESS. IV. IT IS THE CUSTOMER'S RESPONSIBILITY TO PROVIDE AND MAINTAIN THE REQUIRED TRUCK ACCESS FOR THE LIFE OF THE ELECTRICAL SYSTEM. TABLE 1 MAXIMUM DISTANCE FROM LINE TRUCK ACCESS TO AN ELECTRIC METER ROOM DOOR OR TERMINATING ENCLOSURE LOCATED ON EXTERIOR OF BUILDING SIZE OF ELECTRIC CONDUIT ENTERING MAXIMUM DISTANCE TERMINATING ENCLOSURE (FT) (IN) LESS THAN 4 30 4 20 5 10

REFERENCE: a SEE SG016. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK JTM KRG 02/26/2025 F B EDITORIAL CHANGES ARC IPJ IPJ KRG 12/06/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG015.1 1 OF 1 LINE TRUCK ACCESS REQUIREMENTS

SCOPE: THIS STANDARD PROVIDES AN ALTERNATIVE TO LINE TRUCK ACCESS TO THE EXTERIOR OF AN ELECTRIC METER ROOM DOOR FOR INSTALLATION AND REMOVAL OF SERVICE LATERAL CONDUCTORS IN THE UNDERGROUND TERMINATING ENCLOSURE (UGPS) LOCATED IN A PARKING STRUCTURE. ATTENTION:  THIS STANDARD MAY BE USED WHEN ALL OF THE REQUIREMENTS CAN BE MET. DEFINITIONS: • TRUCK ACCESS (FOR THIS STANDARD): A MINIMUM 8-FOOT HEIGHT CLEARANCE AND 14-FOOT MINIMUM TURNING RADIUS MEASURED FROM INSIDE CURB 2,500A UGPS D CUSTOMER’S 30’-0” ELECTRIC METER ROOM SWITCHBOARD MAX. A B 5’-0” MAX. PICKUP TRUCK III EXAMPLE 1 UGPS ON WALL DIRECTLY OPPOSITE DOORWAY III PICKUP TRUCK 5’-0” MAX. ELECTRIC METER ROOM D 30’-0” MAX. CUSTOMER’S A B SWITCHBOARD EXAMPLE 2 3,000A UGPS PERPENDICULAR UGPS TO DOORWAY FIGURE 1 MAIN ELECTRICAL ROOM C E NOT DRAWN TO SCALE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK JTM KRG 02/26/2025 F

B EDITORIAL CHANGES ARC IPJ IPJ KRG 12/06/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG016.1 1 OF 3 PULLING DEVICES FOR INSTALLATION OF SERVICE LATERAL CONDUCTORS IN PARKING STRUCTURES

UNDERGROUND 15 MAX. TERMINATING D ENCLOSURE Z (UGPS) 5’-0” MAX. SDG&E C E F SERVICE LATERAL CONDUIT FIGURE 2 INSTALLATION: A CUSTOMER TO PROVIDE PULLING EYE HOOK STRUCTURALLY IN THE CEILING WITH A LOAD CAPACITY OF 8,000 POUNDS. LOCATE EYE HOOK IN FRONT OF, AND CENTERED TO, THE UGPS. CUSTOMER TO SUBMIT THE STRUCTURAL ENGINEER’S APPROVED DRAWING(S) TO SDG&E’S (UTILITY) PROJECT PLANNER PRIOR TO INSTALLATION OF THE EYE HOOK AND COIL INSERT. COORDINATE THE INSTALLATION WITH THE UTILITY’S INSPECTOR. B B CUSTOMER TO PROVIDE A 1” X 4 1/2” DAYTON/RICHMOND FLARED THIN SLAB COIL INSERT (F-63), OR EQUIVALENT, WITH A SAFE WORKING LOAD TENSION OF 4,750 POUNDS. AND A LOAD OF 8,000 POUNDS. WHEN USED IN COMBINATION WITH THE COIL INSERT SPECIFIED ABOVE. INSTALL THE COIL INSERT AND SWIVEL LIFTING PLATE DIRECTLY BELOW THE PULLING EYE HOOK. COORDINATE THE INSTALLATION WITH THE UTILITY’S INSPECTOR. TO ENSURE SAFETY, INSTALLATION OF THE COIL INSERT AND SWIVEL LIFTING PLATE SHALL BE IN COMPLIANCE WITH THE MANUFACTURER’S INSTALLATION INSTRUCTIONS. A

C THE RIGGING PATH THROUGH THE METER ROOM DOOR IS TO BE DIRECTLY IN LINE FROM TRUCK ACCESS TO THE FLOOR- MOUNTED COIL INSERT AND SWIVEL LIFTING PLATE THROUGH THE METER ROOM DOOR. D THE PULLING EYE HOOK, THE FLOOR-MOUNTED COIL INSERT AND SWIVEL LIFTING PLATE ARE TO BE POSITIONED AT A DISTANCE OUT FROM THE UGPS SUCH THAT ANGLE Z IS NOT GREATER THAN 15 DEGREES. THE RIGGING PATH THROUGH THE FRONT OF THE UGPS IS TO BE UNOBSTRUCTED, AND THE RIGGING IS TO HAVE NO CONTACT WITH THE TOP, BOTTOM, OR SIDES OF THE PULL SECTION OPENING. MAXIMUM ALLOWABLE HEIGHT OF TOP PULLING EYE IS 14 FEET. A B E CUSTOMER TO PROVIDE THE UTILITY 24-HOUR DIRECT ACCESS TO WITHIN 5 FEET OF THE METER ROOM DOOR(S). F RIG THROUGH METER ROOM DOOR. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK JTM KRG 02/26/2025 F B EDITORIAL CHANGES ARC IPJ IPJ KRG 12/06/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG016.2 2 OF 3 PULLING DEVICES FOR INSTALLATION OF SERVICE LATERAL CONDUCTORS IN PARKING STRUCTURES

BILL OF MATERIALS: NONE NOTES: I. PRECAST CONCRETE COMPANIES STOCK THE PULLING DEVICES SPECIFIED ABOVE. II. UPON COMPLETION OF INSTALLATION OF PULLING DEVICES, CERTIFICATION OF COMPLIANCE WITH THIS STANDARD IS REQUIRED UNDER STRUCTURAL/MECHANICAL ENGINEER’S SEAL. III TRUCK ACCESS REQUIRED. UTILITY MUST BE ABLE TO POSITION PICKUP TRUCK PERPENDICULAR TO ACCESS DOOR. REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK JTM KRG 02/26/2025 F B EDITORIAL CHANGES ARC IPJ IPJ KRG 12/06/2022 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG016.3 3 OF 3 PULLING DEVICES FOR INSTALLATION OF SERVICE LATERAL CONDUCTORS IN PARKING STRUCTURES

SCOPE: THIS STANDARD DESCRIBES VARIOUS PLAQUE SPECIFICATIONS. 3/4” MIN. 1/4” MIN. SAMPLE TEXT 3/16” MIN. 3/16” MIN. SAMPLE BUILDING DIAGRAM FIGURE 1 SAMPLE PLAQUE FOR ELECTRICAL EQUIPMENT LABELS II © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG017.1 1 OF 4 PLAQUE SPECIFICATIONS AND EXAMPLES

3/4” MIN. 1/4” MIN. SERVICE #1 3/16” MIN. 3/16” MIN. FIGURE 2 TYPICAL PLAQUE FOR NEW BUILDINGS OR EXISTING BUILDINGS V WITH SEPARATE SERVICE AREAS © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG017.2 2 OF 4 PLAQUE SPECIFICATIONS AND EXAMPLES

3/4” MIN. 1/4” MIN. SERVICE #1 3/16” MIN. 3/16” MIN. FIGURE 3 TYPICAL PLAQUE FOR EXISTING BUILDINGS WITH II INTERMIXED SERVICES © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG017.3 3 OF 4 PLAQUE SPECIFICATIONS AND EXAMPLES

INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. THE PLAQUE OR DIRECTORY REQUIRED BY SECTION 230.2 OF THE NATIONAL ELECTRICAL CODE SHALL BE MANUFACTURED IN METAL OR PLASTIC WITH ENGRAVED OR MACHINE-PRINTED LETTERING, OR ELECTRO-PHOTO-PLATING, IN A CONTRASTING COLOR. a II THE PLAQUE SHALL INCLUDE A FOOTPRINT OF THE ENTIRE BUILDING. III. THE PLAQUE SHALL BE ATTACHED TO THE SERVICE DISCONNECTING MEANS SECURELY BY A MEANS ACCEPTABLE TO THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). IV. EPOXY IS NO LONGER AN ACCEPTABLE METHOD OF SECURING. V THE PLAQUE SHALL INCLUDE A FOOTPRINT OF THE ENTIRE BUILDING WITH THE AREA SERVED BY EACH SERVICE CLEARLY DELINEATED. REFERENCE: a SEE NEC, SECTION 230.2. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG017.4 4 OF 4 PLAQUE SPECIFICATIONS AND EXAMPLES

SCOPE: THESE CLEARANCES APPLY TO ALL UNQUALIFIED PERSONS WHO ARE WORKING IN PROXIMITY TO VOLTAGES UP TO 50KV. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I WORKERS OR OBJECTS NOT SUPPORTED BY BOOM TYPE EQUIPMENT MUST MAINTAIN A 10-FOOT RADIAL CLEARANCE FROM LINE VOLTAGES UP TO 50KV CONDUCTORS. II SCAFFOLDS AND ANY CONDUCTIVE MATERIAL HANDLED ON THEM MUST HAVE A MINIMUM RADIAL CLEARANCE OF 10 FEET FROM UNINSULATED VOLTAGES UP TO 50KV AND A MINIMUM OF 3 FEET FROM INSULATED LINE VOLTAGES LESS THAN 300 VOLTS. III BOOM TYPE LIFTING OR HOSTING EQUIPMENT, INCLUDING LOAD, MUST MAINTAIN A 20-FOOT MINIMUM WORKING RADIUS 10'-0" RADIUS DISTANCE FROM LINE VOLTAGES UP TO 50KV CONDUCTORS. IV TO REDUCE MINIMUM DISTANCE TO 10-FOOT, ALL CAL/FED OSHA APPLICABLE RULES APPLY. 10'-0" RADIUS V. CAL/OSHA ELECTRICAL SAFETY ORDER 2948 MAKES THE CUSTOMER RESPONSIBLE FOR NOTIFYING SDG&E IF ADJUSTMENTS NEED TO BE MADE IN THE ELECTRICAL SYSTEM TO COMPLY WITH TITLE 8. CUSTOMER SHOULD CONTACT APPROPRIATE SDG&E CUSTOMER PROJECT PLANNER FOR AVAILABLE OPTIONS. REFERENCE: a.

SEE CALIFORNIA ADMINISTRATIVE CODE TITLE 8 INDUSTRIAL RELATIONS ELECTRICAL SAFETY ORDER 2946. b. SEE FED/OSHA 1926.1408. c. SEE CALIFORNIA ADMINISTRATIVE CODE TITLE 8 INDUSTRIAL RELATIONS ELECTRICAL SAFETY ORDER 2948. d. SEE FED/OSHA 1926.451 FIGURE 1 FIGURE 2 10'-0" MINIMUM RADIAL CLEARANCE I II 10'-0" MINIMUM RADIAL CLEARANCE I II 20'-0" MINIMUM RADIAL CLEARANCE III FIGURE 3 III IV 20'-0" MINIMUM RADIAL CLEARANCE REV CHANGE DRWN BY CHKD APVD DATE SDG&E ELECTRIC OVERHEAD AND SERVICE GUIDE CONSTRUCTION STANDARDS SCALE: NOT TO SCALE E EDITORIAL CHANGES EDM JAC MRF KRG 10/22/2024 DRAWING NO: SHEET: MEDIUM VOLTAGE CONDUCTOR CLEARANCES FOR D REVISED TO 3D FORMAT NV5 JIK - - 04/15/2024 OH228.1 NON-UTILITY WORKERS AND EQUIPMENT 1 OF 1 C DRAWING UPDATE EDM JAC MRF KRG 11/28/2023 SG018.1 © 1998 - 2024 San Diego Gas and Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. Completely Revised New Page X Indicates Latest Revision Information Removed

SCOPE: THIS STANDARD DESCRIBES HORIZONTAL AND VERTICAL CLEARANCES OF SUPPLY CONDUCTORS FROM BUILDINGS, BRIDGES AND SCOPE: THIS STANDARD DESCRIBES MINIMUM CLEARANCES OF WIRES FROM ILLUMINATED AND NON-ILLUMINATED SIGNS. OTHER STRUCTURES. 750V-300KV SUPPLY CONDUCTORS AND CABLES 750V-300KV SUPPLY 0-750V SUPPLY CONDUCTORS CONDUCTORS 0-750V SUPPLY CONDUCTORS AND CABLES 0-20KV GROUNDED CABLE 0-20KV GROUNDED CABLE c 0-750V SERVICE DROPS a 0-750V SERVICE DROPS, SPAN WIRES, CLEARANCE OVERHEAD GUYS AND MESSENGERS I ZONE CLEARANCE CLEARANCE ZONE 12'-0" MIN. 8'-0" MIN. 0-750V SUPPLY CONDUCTORS ZONE 12'-0" MIN. 8'-0" MIN. AND CABLES 3'-0" 3'-0" 3'-0" 0-20KV GROUNDED CABLE c MIN. MIN. MIN. 0-750V SERVICE DROPS WALKABLE SURFACE 6'-0" MIN. 750V-300KV SUPPLY CONDUCTORS I I ILLUMINATED SIGNS 3'-0" SPAN WIRES, OVERHEAD 3'-0" 3'-0" (ISOLATED OR ON BLDGS) II BUILDINGS, BRIDGES, AND OTHER STRUCTURES WALKABLE SURFACE MIN. GUYS AND MESSENGERS MIN. MIN. 0-750V SUPPLY CONDUCTORS 6'-0" 750V-300KV SUPPLY 6'-0" 6'-0" 3'-0" MIN 0-750V SERVICE DROPS a 2'-0" MIN. 3'-0" MIN. MIN. CONDUCTORS AND CABLES MIN. MIN.

NEAREST PROJECTING SURFACE INCLUDES CORNICES, BALCONIES, EXITS, FIRE ESCAPES, 0-750V SUPPLY CONDUCTORS AND CABLE SIDE VIEW BAY WINDOWS, CATWALKS, ETC. II 0-20KV GROUNDED CABLE 0-20KV GROUNDED CABLE c 0-750V SERVICE DROPS I FIGURE 1 SPAN WIRES, OVERHEAD GUYS AND MESSENGERS II NEAR BUILDINGS, BRIDGES, AND OTHER STRUCTURES 750V OR MORE SUPPLY CONDUCTORS PROHIBITED UNDER SIGNS AND HORIZONTAL SUPPORTS III VERTICAL CLEARANCES ABOVE GROUND, WALKWAYS, ETC. SHALL BE MAINTAINED FIGURE 1 CLEARANCES FROM WALKABLE ILLUMINATED SIGNS 6'-0" MIN. II 3'-0" MIN. 0-750V SUPPLY CONDUCTORS 3'-0" 750V-300KV SUPPLY CONDUCTORS AND CABLES CLEARANCE ZONE 0-750V SERVICE DROPS MIN. 0-20KV GROUNDED CABLE c 0-20KV GROUNDED CABLE II 0-750V SERVICE DROPS, SPAN WIRES, 6'-0" OVERHEAD GUYS AND MESSENGERS I 750V-300KV SUPPLY CONDUCTORS I MIN. CLEARANCE 0-750V SUPPLY CONDUCTORS AND CABLES ZONE CLEARANCE FIGURE 2 ZONE 8'-0" MIN. 2'-0" MIN. 3'-0" MIN. UNDER OR THRU BRIDGES, VIADUCTS OR SIMILAR STRUCTURES INSTALLATION: NONE 3'-0" SPAN WIRES, OVERHEAD 3'-0" 3'-0" II BILL OF MATERIALS: NONE ILLUMINATED SIGNS MIN.

GUYS AND MESSENGERS MIN. MIN. (ISOLATED OR ON BLDGS) NOTES: NOT A WALKABLE SURFACE 6'-0" 750V-300KV SUPPLY 6'-0" 6'-0" MIN. CONDUCTORS AND CABLES MIN. MIN. I HORIZONTAL CLEARANCE OF 750V-7.5KV CONDUCTORS FROM BUILDING WALLS MAY BE REDUCED TO FOUR FEET WHERE CONDUCTORS ARE IN EXCESS OF THIRTY FIVE FEET ABOVE GROUND. REDUCED CLEARANCE DOES NOT APPLY TO BRIDGES, FIRE 2'-0" MIN. 3'-0" MIN. ESCAPES, WINDOWS, BALCONIES OR STRUCTURES WHERE HUMAN CONTACT MAY BE EXPECTED. II NO LIMIT REQUIRED BUT THE GREATEST PRACTICABLE CLEARANCE SHOULD BE MAINTAINED. PROVIDE MECHANICAL (PHYSICAL) SIDE VIEW 0-750V SUPPLY CONDUCTORS AND CABLES CLEARANCE FOR CABLE PROTECTION. 0-20KV GROUNDED CABLE c 0-750V SERVICE DROPS I REFERENCE: SPAN WIRES, OVERHEAD GUYS AND MESSENGERS II a FOR 0-300V SERVICE DROP CLEARANCES, SEE UG262.3-4. 750V OR MORE SUPPLY CONDUCTORS AND CABLES PROHIBITED b. SEE G.O. 95 RULE 54.4I FOR SIGN REQUIREMENTS ON BRIDGES, VIADUCTS ETC., WHEN ATTACHING CONDUCTORS 750V-22.5KV UNDER SIGNS AND HORIZONTAL SUPPORTS III BENEATH OR THRU SAME. FIGURE 2 c. DATA TAKEN FROM G.O.

95 TABLE I, CASE 6 AND 7 AND RULE 54.4H AND I. CLEARANCES FROM NON-WALKABLE ILLUMINATED SIGNS REV CHANGE DRWN BY CHKD APVD DATE SDG&E ELECTRIC OVERHEAD AND UNDERGROUND CONSTRUCTION STANDARDS SCALE: NOT TO SCALE H EDITORIAL CHANGES EDM KRG MRF KRG 11/03/2023 HORIZONTAL AND VERTICAL CLEARANCES OF SUPPLY CONDUCTOR DRAWING NO: SHEET: G REVISED TO 3D FORMAT/DRAWING UPDATE EDM JAC MRF KRG 07/20/2023 FROM BUILDINGS, BRIDGES AND OTHER STRUCTURES/FROM OH229.1 1 OF 4 F EDITORIAL CHANGES EDM GLW JES CZH 12/12/2021 ILLUMINATED AND NON-ILLUMINATED SIGNS SG019.1 ‹ 1998 - 2023 San Diego Gas and Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. Completely Revised New Page X Indicates Latest Revision Information Removed

INSTALLATION: NONE 750V-300KV SUPPLY CONDUCTORS AND CABLES BILL OF MATERIALS: NONE 0-750V SUPPLY CONDUCTORS AND CABLES 0-20KV GROUNDED CABLE c NOTES: 0-750V SERVICE DROPS I I THESE CLEARANCES DO NOT APPLY TO SERVICE DROPS ATTACHED TO AND SERVING THESE SIGNS. CLEARANCE SPAN WIRES, OVERHEAD GUYS AND MESSENGERS CLEARANCE II MAY BE REDUCED TO SIX INCHES MINIMUM IF ILLUMINATED SIGN IS GROUNDED. ZONE ZONE 0-750V SUPPLY CONDUCTORS III CLEARANCES SPECIFIED MAY VARY NO MORE THAN 10% DUE TO TEMPERATURE OR WIND LOADING. 12'-0" MIN. 8'-0" MIN. AND CABLES 3'-0" 3'-0" 3'-0" IV WHEN CONDUCTORS OF MORE THAN 750V ARE AT A LEVEL OF EIGHT FEET OR MORE BELOW THE LEVEL OF THE LOWEST PORTION 0-20KV GROUNDED CABLE c MIN. MIN. MIN. 0-750V SERVICE DROPS OF THE SIGN BUT NOT VERTICALLY UNDER THE SIGN, NO HORIZONTAL CLEARANCE IS REQUIRED BETWEEN THE VERTICAL PLANES I THROUGH THE CONDUCTOR NEAREST THE SIGN AND THE VERTICAL PROJECTION OF THE EXTREMITIES OF THE SIGN. a NON-ILLUMINATED SIGNS 3'-0" SPAN WIRES, OVERHEAD 3'-0" 3'-0" (ISOLATED OR ON BLDGS) MIN. GUYS AND MESSENGERS MIN. MIN. REFERENCE: WALKABLE SURFACE

6'-0" 750V-300KV SUPPLY 6'-0" 6'-0" a SEE G.O. 95, RULE 39. MIN. CONDUCTORS AND CABLES MIN. MIN. b. DATA TAKEN FROM G.O. 95 TABLE 2-A. 2'-0" MIN. 3'-0" MIN. c SEE G.O. 95 RULES 57.4-A2 & 57.8. 0-750V SUPPLY CONDUCTORS AND CABLES SIDE VIEW 0-20KV GROUNDED CABLE c 0-750V SERVICE DROPS I SPAN WIRES, OVERHEAD GUYS AND MESSENGERS II 750V OR MORE SUPPLY CONDUCTORS PROHIBITED UNDER SIGNS AND HORIZONTAL SUPPORTS III FIGURE 3 CLEARANCES FROM WALKABLE NON-ILLUMINATED SIGNS 750V-300KV SUPPLY CONDUCTORS AND CABLES 0-20KV GROUNDED CABLE c 0-750V SERVICE DROPS, SPAN WIRES, OVERHEAD GUYS AND MESSENGERS I CLEARANCE 0-750V SUPPLY CONDUCTORS AND CABLES CLEARANCE ZONE ZONE 0-750V SUPPLY CONDUCTORS 8'-0" MIN. 2'-0" MIN. 3'-0" MIN. AND CABLES 3'-0" 3'-0" 3'-0" 0-20KV GROUNDED CABLE c MIN. MIN. MIN. 0-750V SERVICE DROPS I NON-ILLUMINATED SIGNS 3'-0" SPAN WIRES, OVERHEAD 3'-0" 3'-0" (ISOLATED OR ON BLDGS) MIN. GUYS AND MESSENGERS MIN. MIN. NOT A WALKABLE SURFACE 6'-0" 750V-300KV SUPPLY 6'-0" 6'-0" MIN. CONDUCTORS AND CABLES MIN. MIN. 2'-0" MIN. 3'-0" MIN. SIDE VIEW 0-750V SUPPLY CONDUCTORS AND CABLES

0-20KV GROUNDED CABLE c 0-750V SERVICE DROPS I SPAN WIRES, OVERHEAD GUYS AND MESSENGERS II 750V OR MORE SUPPLY CONDUCTORS AND CABLES PROHIBITED UNDER SIGNS AND HORIZONTAL SUPPORTS III FIGURE 4 CLEARANCES FROM NON-WALKABLE NON-ILLUMINATED SIGNS REV CHANGE DRWN BY CHKD APVD DATE SDG&E ELECTRIC OVERHEAD AND UNDERGROUND CONSTRUCTION STANDARDS SCALE: NOT TO SCALE H EDITORIAL CHANGES EDM KRG MRF KRG 11/03/2023 DRAWING NO: SHEET: HORIZONTAL AND VERTICAL CLEARANCES OF SUPPLY CONDUCTOR G REVISED TO 3D FORMAT/DRAWING UPDATE EDM JAC MRF KRG 07/20/2023 OH229.2 FROM ILLUMINATED AND NON-ILLUMINATED SIGNS 2 OF 4 F EDITORIAL CHANGES EDM GLW JES CZH 12/12/2021 SG019.2 ‹ 1998 - 2023 San Diego Gas and Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. Completely Revised New Page X Indicates Latest Revision Information Removed

SCOPE: THIS STANDARD DESCRIBES MINIMUM HORIZONTAL AND VERTICAL CLEARANCES WHERE LINE STRUCTURES ARE SET IN INSTALLATION: NONE PROXIMITY TO RAILROAD TRACKS. BILL OF MATERIALS: NONE NOTES: I IF VERTICAL CLEARANCE OF 22'-6" IS NOT ENCROACHED IN FROM NEAREST PART OF STRUCTURE TO CENTERLINE OF TRACK, THEN MINIMUM HORIZONTAL CLEARANCE IS ALLOWED TO BE MEASURED FROM FACE OF POLE. II IF VERTICAL CLEARANCE OF 22'-6" IS ENCROACHED IN BY ANY PORTION OF STRUCTURE, THEN MINIMUM HORIZONTAL CLEARANCE MUST BE MEASURED FROM THE NEAREST PART OF STRUCTURE TO CENTERLINE OF TRACK. III NO PART OF STRUCTURE ALLOWED IN THIS AREA. CL OF TRACK REFERENCE: a. FOR VERTICAL CLEARANCES, SEE OH220. III 22'-6" TOP OF RAIL R.R. CURVE 9'-6" MIN. R.R. TANGENT 8'-6" MIN. FIGURE 1 I CL OF TRACK III 22'-6" TOP OF RAIL R.R. CURVE 9'-6" MIN. R.R. TANGENT 8'-6" MIN. FIGURE 2 II REV CHANGE DRWN BY CHKD APVD DATE SDG&E ELECTRIC OVERHEAD AND UNDERGROUND CONSTRUCTION STANDARDS SCALE: NOT TO SCALE H EDITORIAL CHANGES EDM KRG MRF KRG 11/03/2023 DRAWING NO: SHEET: HORIZONTAL AND VERTICAL CLEARANCES OF SUPPLY CONDUCTOR

G REVISED TO 3D FORMAT/DRAWING UPDATE EDM JAC MRF KRG 07/20/2023 OH229.3 FROM RAILROAD TRACKS 3 OF 4 F EDITORIAL CHANGES EDM GLW JES CZH 12/12/2021 SG019.3 ‹ 1998 - 2023 San Diego Gas and Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. Completely Revised New Page X Indicates Latest Revision Information Removed

SCOPE: THIS STANDARD DESCRIBES MINIMUM CLEARANCE AND SEPARATION REQUIREMENTS OF ENERGIZED OVERHEAD CONDUCTORS FROM CONTAINERS OF FLAMMABLE OR EXPLOSIVE MIXTURES. 6'-0" III FLAMMABLE OR MIN. EXPLOSIVE MIXTURE RECOMMENDED RADIUS = 25'-0" FIGURE 1 PLAN VIEW RECOMMENDED RADIUS = 25'-0" FLAMMABLE OR EXPLOSIVE MIXTURE 6'-0" III MIN. FLAMMABLE OR EXPLOSIVE MIXTURE FIGURE 1 ELEVATION INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. ALL ENERGIZED OVERHEAD FACILITIES OVER 600V SHALL HAVE A MINIMUM CLEARANCE OF 6 FEET MEASURED HORIZONTALLY AND A RECOMMENDED RADIUS OF 25 FEET FROM ANY EXPOSED TANK, VENT OR FILL TUBE CONTAINING FLAMMABLE OR EXPLOSIVE MIXTURES. II. THIS STANDARD DOES NOT APPLY TO FACILITIES INSTALLED PRIOR TO NOVEMBER 15, 1983. a III 10 FEET RECOMMENDED REFERENCE: a. SEE NFPA 58-6.5.3.13, 2020 EDITION. REV CHANGE DRWN BY CHKD APVD DATE SDG&E ELECTRIC OVERHEAD AND UNDERGROUND CONSTRUCTION STANDARDS SCALE: NOT TO SCALE H EDITORIAL CHANGES EDM KRG MRF KRG 11/03/2023 DRAWING NO: SHEET: HORIZONTAL AND VERTICAL CLEARANCES OF SUPPLY CONDUCTOR

G REVISED TO 3D FORMAT/DRAWING UPDATE EDM JAC MRF KRG 07/20/2023 OH229.4 FROM TANKS CONTAINING FLAMMABLE OR EXPLOSIVE MIXTURE 4 OF 4 F EDITORIAL CHANGES EDM GLW JES CZH 12/12/2021 SG019.4 ‹ 1998 - 2023 San Diego Gas and Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. Completely Revised New Page X Indicates Latest Revision Information Removed

SCOPE: THIS STANDARD LISTS VARIOUS PRODUCT DISTRIBUTORS UTILIZED BY SDG&E. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. CONDUIT PULLING TAPE, CONCRETE PRODUCTS, AND WOOD POLES PURCHASED FOR USE ON SDG&E’S DISTRIBUTION SYSTEM AND CUSTOMER-OWNED METER POLES MUST MEET THE AMERICAN SOCIETY FOR TESTING & MATERIALS (ASTM) INTERNATIONAL STANDARDS. TABLE 1 IS A CURRENT LISTING OF SUPPLIERS THAT CARRY PRODUCTS APPROVED BY SDG&E. PRIOR TO PURCHASE, IT IS ADVISED THAT YOU VERIFY WITH THE SUPPLIER THAT THE PRODUCTS YOU ARE PROCURING MEET ASTM INTERNATIONAL STANDARDS. TABLE 1 SDG&E SUPPLIER LIST CONCRETE SUPPLIER PHONE NUMBER CONDUIT II POLES PULLING TAPE PRODUCTS Brooks Products – Ontario 909-947-7470 X California Electric Supply Chula Vista 619-427-2370 X El Cajon 619-579-0711 Consolidated Electric Distributors Carlsbad 760-438-9691 Escondido 760-747-2900 Ramona 760-788-6112 X San Clemente 949-492-5161 San Diego 858-268-1020 Santee 619-562-3004 Temecula 951-296-9555 Crescent Electric Supply Company 855-999-2372 X X X X CSC (Communications Supply 858-279-0233 X

Corporation/WESCO Distribution) Grand Electric Supply – Vista 760-727-0400 X Graybar Electric Company San Diego 858-547-6550 X San Marcos 760-591-4788 Jensen Precast – Fontana 909-350-4111 X Oldcastle Precast Escondido 760-737-8590 X Fontana 800-626-3860 One Source Distributors El Centro 760-352-1015 Garden Grove 714-685-5340 X Oceanside 760-966-4500 San Diego – Miramar 858-452-9001 San Diego – Kearny Mesa 858-565-8866 Pine Tree Lumber – Escondido 760-745-0411 X ProGlass, Inc. – Gig Harbor (WA) 253-884-4008 X Rexel El Cajon 619-442-9255 X Escondido 760-747-2211 San Diego 858-636-4400 II CONDUIT MUST BE GRAY REFERENCE: a. SEE AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) INTERNATIONAL STANDARDS. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK JTM KRG 02/26/2025 E A EDITORIAL CHANGES LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG020.1 1 OF 1 PRODUCT DISTRIBUTORS

SCOPE: THIS SERVICE GUIDE EXPLAINS HOW TO OBTAIN A SERVICE AND METER LOCATION FOR NEW ELECTRIC SERVICES, SERVICE RELOCATIONS, AND SERVICE UPGRADES. TABLE 1: SERVICE ORDER TEAMS FOR RESIDENTIAL CUSTOMERS UP TO 400 AMPS AND NON-RESIDENTIAL CUSTOMERS UP TO 200 AMPS BEACH CITIES METRO NORTH COAST 4848 SANTE FE ST 701A 33RD ST 4940 CARLSBAD BLVD SAN DIEGO, CA 92109 SAN DIEGO, CA 92102 CARLSBAD, CA 92008 (858) 581-7544 (619) 230-7800 (760) 476-5621 NORTHEAST EASTERN ORANGE COUNTY 571 ENTERPRISE ST 904 WEST MAIN ST 662 CAMINO DE LOS MARES ESCONDIDO, CA 92029 EL CAJON, CA 92020 SAN CLEMENTE, CA 92673 (760) 480-7745 (619) 441-3969 (949) 361-8066 TABLE 2: PROJECT MANAGEMENT OFFICES FOR RESIDENTIAL CUSTOMERS UP TO 400 AMPS AND NON-RESIDENTIAL CUSTOMERS UP TO 200 AMPS SOUTHERN REGION (METRO) NORTHERN REGION ORANGE COUNTY REGION 8315 CENTURY PARK CT, STE 210 571 ENTERPRISE ST 662 CAMINO DE LOS MARES SAN DIEGO, CA 92123-1550 ESCONDIDO, CA 92029 SAN CLEMENTE, CA 92673 (858) 636-6805 (760) 480-7603 (949) 361-8028

IN ALL CASES, YOU MAY ALSO CONTACT SDG&E BY CALLING (877) 789-9866 OR VIA THE INTERNET AT: https://www.sdge.com/businesses/savings-center/services/service-planning-for-expansionrelocation/service-and-meter-request-form TO REQUEST A TRENCH INSPECTION, CONTACT ONE OF THE FOLLOWING NUMBERS BETWEEN 7:00 A.M. AND 2:00 P.M. BASED ON THE LOCATION OF YOUR PROJECT. TABLE 3: SAN DIEGO GAS & ELECTRIC TRENCH INSPECTIONS SOUTHERN REGION (METRO) NORTHERN REGION ORANGE COUNTY REGION (877) 610-2948 (760) 432-5805 (949) 361-8061 FOR SERVICE STANDARDS INTERPRETATIONS OR TO PURCHASE A SERVICE STANDARDS & GUIDE, CONTACT: ISRAEL JUAREZ SERVICE STANDARDS TEAM LEAD ijuarez@sdge.com (858) 636-3941 © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 5/22/2020 F B EDITORIAL CHANGES CSE IPJ CZH 2/10/2020 E A EDITORIAL CHANGES LSM IPJ TPM 11/1/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG021.1 1 OF 1 SERVICE ORDER TEAMS & REGIONAL PROJECT MANAGEMENT OFFICES

BORDER WITH SOUTHERN CALIFORNIA EDISON ORANGE COUNTY REGION NORTHERN REGION METRO REGION © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK -- -- 5/22/2020 E A EDITORIAL CHANGES LSM LSM TPM 11/1/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG022.1 1 OF 1 PROJECT MANAGEMENT REGIONAL BOUNDARY MAP

SUBJECT – ELECTRIC PAGE CONDUITS, CUSTOMER-OWNED & -INSTALLED......................................................................................................................... 309 DEFINITIONS OF TERMS.......................................................................................................................................................... 003 ELECTRIC METER CABINETS.................................................................................................................................................... 509 ELECTRIC METER ROOMS........................................................................................................................................................ 506 ELECTRIC SERVICE POLICIES.......................................................................................................................................... 011 – 014 FAULT CURRENT, UTILITY’S CONTRIBUTION & EXAMPLES..................................................................................................006, 008

LOCKSMITHS, LISTING OF....................................................................................................................................................... 005 METER ACCESS.................................................................................................................................................................... 004.4 METER POLES, CUSTOMER-OWNED SERVICE & METER POLES.......................................................................................... 204 – 205 METER TYPE & SOCKET CLIP ARRANGEMENT............................................................................................................................ 516 SERVICE LATERAL, UNDERGROUND ELECTRIC SERVICE LATERAL RESIDENTIAL OR COMMERCIAL............................................... 309 TERMINATING ENCLOSURES PULL CAN, 0-600 VOLTS.......................................................................................................................................... 705 – 706

PULL SECTION, 0-600 VOLTS............................................................................................................................................ 708 PULL SECTION, MEDIUM-VOLTAGE SWITCHGEAR.............................................................................................................. 608 TRENCH INSPECTIONS.................................................................................................................................................. 021, 004.5 TRUCK ACCESS.............................................................................................................................................................. 015 – 016 UNACCEPTABLE METER LOCATIONS...................................................................................................................................... 504.3 WORKING SPACE................................................................................................................................................................. 504.1 SUBJECT – GAS

GAS METER CAPACITY & SELECTION...................................................................................................................................... 1005 GAS SERVICE RISER & HOUSELINE SPACING, CLEARANCES, & MINIMUM WORKING SPACE........................................................ 1009 GAS TRENCH ONLY FOR SAN DIEGO COUNTY......................................................................................................................... 1004 METER CABINET FOR SINGLE RESIDENTIAL GAS METER.......................................................................................................... 1008 UTILITY PLACEMENT IN JOINT TRENCH & GAS METER SET ASSEMBLY INSTALLATION.............................................................. 1007 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES EDM IWA JTM KRG 02/26/2025 F B FORMATTING EDM JIK - - 05/22/2020 E A NEW PAGE - LSM BRB TPM 11/01/2017 D

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ELECTRIC SECTIONS SUBJECT PAGE ACCESSIBILITY.................................................................................................................................................................... 004.4 ACCESSIBLE/INACCESSIBLE METER LOCATION...................................................................................................................... 005.1 ADDING LOAD TO EXISTING METER PANELS.......................................................................................................................... 004.2 ADDITIONS, ALTERATIONS OR RENEWAL OF EXISTING SERVICE AND METERING EQUIPMENT................................................. 504.2 ADDRESSING CONVENTIONS................................................................................................................................................ 004.5 ALTERNATE SERVICE DELIVERY POINT REQUESTS................................................................................................................. 011.2

APPLICATION FOR A BILLING ACCOUNT................................................................................................................................ 004.2 BARRIERS FOR ELECTRIC SERVICE AND METERING EQUIPMENT................................................................................................ 505 BIL RATING......................................................................................................................................................................... 603.4 BUS TAP DRAWINGS FOR APPROVAL........................................................................................................................... 517.1, 603.3 BUSWAY SERVICE HEADS........................................................................................................................................................ 110 CABLE POLE QUADRANT AND RISER IDENTIFICATION............................................................................................................... 314

CABLE POLE RISER INSTALLATION........................................................................................................................................... 315 CABLE POLE RISER POSITION USING LADDER ARM BRACKET AND SINGLE RISER....................................................................... 313 CABLE TERMINATION BUS STUBS............................................................................................................................................ 709 CHARACTER OF SERVICE...................................................................................................................................................... 004.3 CLEARANCES OF OVERHEAD FACILITIES FROM TANKS CONTAINING FLAMMABLE OR EXPLOSIVE MIXTURE.................................. 019 CLEARANCES, MEDIUM-VOLTAGE CONDUCTORS....................................................................................................................... 018

CONDUIT BEND AND RISER AT BUILDING................................................................................................................................ 312 CONNECTION OR DISCONNECTION OF SERVICE.................................................................................................................... 004.4 CONTROL POWER TRANSFORMER METERING........................................................................................................................... 605 CONVERSIONS............................................................................................................................................................... 303 – 305 CURRENT TRANSFORMER DIMENSIONS ………………………………………………………………………………………………………………………………….606 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C SG308 MOVED TO FMO EDM JIK IPJ CZH 02/08/2021 F B FORMATTING EDM JIK - - 05/22/2020 E

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SUBJECT PAGE CUSTOMER GENERATION CLEARANCE REQUIREMENTS FROM SDG&E-OWNED ELECTRIC METER AND SERVICE AND GAS METER ASSEMBLY................. 810 DISCONNECTION DEVICES................................................................................................................................ 806.3 – 806.4 DISCONNECTION OF GENERATOR................................................................................................................................. 807.6 DISTRIBUTED GENERATION.................................................................................................................................... 806 – 811 GENERAL INFORMATION.................................................................................................................................................. 803 INSPECTION................................................................................................................................................................. 807.6

METERING DEVICES INFORMATION AND TABLE............................................................................................................. 807.5 METERING EXAMPLES FOR BILLING AND PURCHASE OF ENERGY........................................................................................ 811 NET GENERATION OUTPUT METERING..................................................................................................................... 807 – 811 STAND-BY GENERATOR.................................................................................................................................................... 805 STAND-BY GENERATOR SAFETY TRANSFER SWITCH.......................................................................................................... 804 TELEMETERING............................................................................................................................................................ 807.6

TRANSFORMER REQUIREMENTS.................................................................................................................................... 807.6 VOLTAGE STANDARDS.................................................................................................................................................. 807.5 CUSTOMER WILL FURNISH, INSTALL, OWN, AND MAINTAIN................................................................................................... 009.1 CUSTOMER-OWNED SERVICE AND METER POLES ADDRESS MARKING...................................................................................................................................................... 203.2 MULTIPLE METER INSTALLATION..............................................................................................................................206, 207 PERMANENT POLE........................................................................................................................................................... 204

TEMPORARY POLE........................................................................................................................................................... 205 TEMPORARY SERVICE FROM AN OVERHEAD SOURCE..................................................................................................205, 206 UNDERGROUND INSTALLATION........................................................................................................................................ 207 DEFINITIONS OF TERMS.......................................................................................................................................................... 003 DRIP LOOPS.......................................................................................................................................... 104.5, 112.2, 112.4, 112.6 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C SG308 MOVED TO FMO EDM JIK IPJ CZH 02/08/2021 F

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SUBJECT PAGE ELECTRIC METER AND SERVICE LOCATION – COMMERCIAL AND RESIDENTIAL PREMISES COMMERCIAL AND INDUSTRIAL, METER LOCATIONS...................................................................................................... 504.3 GENERAL INFORMATION...........................................................................................................................................503, 504 INACCESSIBLE.............................................................................................................................................................. 005.1 MID-RISE AND HIGH-RISE BUILDINGS.............................................................................................................................. 510 REQUESTS, ELECTRIC METER AND SERVICE LOCATION..................................................................................................... 503 RESIDENTIAL, METER LOCATIONS................................................................................................................................. 504.2

SINGLE OR MULTIPLE METER INSTALLATIONS.................................................................................................................. 507 UNACCEPTABLE METER LOCATIONS............................................................................................................................... 504.3 ELECTRIC METER CABINET – COMMERCIAL OR RESIDENTIAL MULTI-METER INSTALLATIONS...................................................... 509 ELECTRIC METER ROOM.......................................................................................................................................................... 506 ELECTRIC SERVICE DISCONNECTS AND METER SERVICE DISCONNECTS........................................................................... 511, 515.1 ELECTRIC SERVICE POLICIES.......................................................................................................................................... 011 – 014

ELECTRIC TERMINATING ENCLOSURES, 0–600V........................................................................................................................ 703 GENERAL INFORMATION........................................................................................................................................ 003.2, 703 OVERHEAD SERVICE TERMINATING ENCLOSURE............................................................................................................... 704 UNDERGROUND PULL SECTION........................................................................................................................................ 708 EQUIPMENT PROVIDED, BY CUSTOMER AND UTILITY............................................................................................................. 004.4 EXISTING CUSTOMERS REQUESTING ADDITIONAL SERVICES OR REMOTE METER LOCATIONS.................................................... 013 EXISTING GAS METER BELOW ELECTRIC SERVICE AND METERING EQUIPMENT....................................................................... 504.2

FIELD HEATING SERVICE LATERAL CONDUITS.......................................................................................................................... 306 GAS AND ELECTRIC METER ACCESS...................................................................................................................................... 005.1 GENERAL INFORMATION......................................................................................................................................................... 004 GROUNDING AND BONDING................................................................................................................................................. 112.6 INGRESS AND EGRESS TO ELECTRIC SERVICE AND METERING EQUIPMENT............................................................................ 504.2 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C SG308 MOVED TO FMO EDM JIK IPJ CZH 02/08/2021 F

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SUBJECT PAGE INSPECTION AUTHORITY..................................................................................................................................................... 003.1 INSTRUMENT TRANSFORMER MOUNTING SPECIFICATIONS....................................................................................................... 607 LOCKSMITHS, LISTING OF........................................................................................................................................ 005.1 – 005.2 MANUFACTURER’S DRAWINGS FOR APPROVAL............................................................................................................. 517.1, 603.1 MARKOUT SERVICE.............................................................................................................................................................. 004.5 MEDIUM-VOLTAGE CONDUCTOR CLEARANCES FOR NON-UTILITY WORKERS AND EQUIPMENT.................................................... 018

MEDIUM VOLTAGE METERING CUBICLE.................................................................................................................................... 604 MEDIUM VOLTAGE SERVICE AND METERING EQUIPMENT.......................................................................................................... 603 METER CABINET RECESS......................................................................................................................................................... 508 METER HEIGHTS.................................................................................................................................................................. 504.1 METER LOCATIONS (REFER TO ELECTRIC METER AND SERVICE LOCATION – COMMERCIAL AND RESIDENTIAL PREMISES) SHEET 3 METER MARKING................................................................................................................................................................. 504.1

METER PEDESTAL FOUNDATION DETAILS.............................................................................................................................. 519.6 METER PEDESTAL, COMMERCIAL............................................................................................................................................. 519 METER PEDESTAL, FIELD REPLACEMENT OF EXISTING 120-VOLT METER PEDESTAL.................................................................... 520 METER PEDESTAL, RESIDENTIAL.............................................................................................................................................. 518 METER SOCKET SEALING RINGS.............................................................................................................................................. 503 METER TYPE AND SOCKET CLIP ARRANGEMENT....................................................................................................................... 516

METERED AND UNMETERED CONDUCTORS............................................................................................................................... 503 METERING COMMUNICATIONS................................................................................................................................................. 525 MID-RISE AND HIGH-RISE BUILDINGS...................................................................................................................................... 510 MOBILE HOME PARK SERVICE AND METER PEDESTALS............................................................................................................. 518 MULTI-FAMILY RESIDENTIAL BUILDINGS – LESS THAN 3 STORIES HIGH....................................................................... 012.1, 013.1 OVERHEAD ELECTRIC CLEARANCES OVER SWIMMING POOLS.................................................................................................... 108

PERMIT AND INSPECTION.................................................................................................................................................... 004.2 PLAQUE SPECIFICATIONS AND EXAMPLES................................................................................................................................ 017 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C SG308 MOVED TO FMO EDM JIK IPJ CZH 02/08/2021 F B FORMATTING EDM JIK - - 05/22/2020 E A NEW PAGE - LSM LSM TPM 11/01/2017 D EDITORIAL CHANGES EDM JIK JTM KRG 02/26/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG024.4 4 OF 9 ALPHABETICAL SUBJECT INDEX

SUBJECT PAGE PRODUCT DISTRIBUTORS........................................................................................................................................................ 020 PULLING DEVICES FOR INSTALLATION OF SERVICE LATERAL CONDUCTORS IN PARKING STRUCTURES....................................... 016 PURPOSE............................................................................................................................................................................. 004.1 READILY ACCESSIBLE DEFINITION........................................................................................................................................... 503 REQUEST FOR SERVICE................................................................................................................................................. 021, 004.2 RESIDENTIAL OR MIXED USE BUILDINGS – 3 STORIES OR GREATER............................................................................. 012.1, 013.1

RESIDENTIAL SINGLE-PHASE MULTI-METER STACK SPECIAL APPLICATION................................................................................. 707 RESIDENTIAL CONTIGUOUS DWELLINGS – TOWNHOUSES (ROW HOMES)..................................................................... 012.1, 013.1 RIGHTS OF WAY.................................................................................................................................................................. 011.2 RISERS METALLIC CONDUIT RISERS............................................................................................................................................. 105 SOLID WOOD RISERS...................................................................................................................................................... 106 SAFETY SOCKET METER CANS.................................................................................................................................................. 514

SAMPLE PLAQUE FOR ELECTRICAL EQUIPMENT LABELS.......................................................................................................... 017.1 SCOPE................................................................................................................................................................................. 004.1 SDG&E TRANSFORMER FUSING INFORMATION...................................................................................................................... 007.1 SDG&E WILL FURNISH, INSTALL, OWN, AND MAINTAIN......................................................................................................... 009.2 SEALING OF METER AND SERVICE FACILITIES................................................................................................................ 004.4, 503 SECONDARY SERVING VOLTAGES AND CLASSIFICATION OF SERVICE INFORMATION............................................................... 011.3 SERVICE DROPS

ATTACHMENTS................................................................................................................................................. 103, 105, 106 CLEARANCES................................................................................................................................................................... 107 CLEARANCES OVER SWIMMING POOLS............................................................................................................................. 108 GENERAL INFORMATION............................................................................................................................................... 103.4 LENGTH....................................................................................................................................................................... 103.1 SUPPORTS...................................................................................................................................................................... 104 © 1998 - 2025 San Diego Gas & Electric Company.

All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C SG308 MOVED TO FMO EDM JIK IPJ CZH 02/08/2021 F B FORMATTING EDM JIK - - 05/22/2020 E A NEW PAGE - LSM LSM TPM 11/01/2017 D EDITORIAL CHANGES EDM JIK JTM KRG 02/26/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG024.5 5 OF 9 ALPHABETICAL SUBJECT INDEX

SUBJECT PAGE SERVICE AND METERING EQUIPMENT, RESIDENTIAL SELF-CONTAINED COMBINATION PULL AND METER CANS............................................................................................................................. 512 EQUIPMENT CONNECTED AHEAD OF A MAIN SERVICE DISCONNECT................................................................................ 512.1 METER SOCKET CLOSING DEVICES................................................................................................................................ 512.1 METER SOCKET CONNECTIONS..................................................................................................................................... 512.1 SELF-CONTAINED METER SOCKETS............................................................................................................................... 512.1 SERVICE ENTRANCE CONDUCTORS, 0–600V............................................................................................................................. 112

SERVICE ENTRANCE LIMITATIONS........................................................................................................................................... 503 SERVICE ENTRANCE RACEWAYS............................................................................................................................................... 111 SERVICE HEADS...................................................................................................................................................................... 109 SERVICE LOCATIONS............................................................................................................................................................ 011.2 SERVICE PLANNING............................................................................................................................................................. 004.1 SINGLE PREMISES – MULTIPLE NON-RESIDENTIAL ENTERPRISES................................................................................. 012.2, 013.2

SINGLE PREMISES – MULTIPLE RESIDENTIAL CUSTOMERS........................................................................................... 012.3, 013.3 SINGLE PREMISES – SINGLE NON-RESIDENTIAL ENTERPRISE....................................................................................... 012.2, 013.2 SINGLE PREMISES – SINGLE RESIDENTIAL CUSTOMER WITH OTHER ELECTRIC USES.................................................... 012.3, 013.3 SINGLE PREMISES WITH MULTIPLE BUILDINGS – SERVICE AND METERING REQUIREMENTS....................................................... 014 STANDARD SWITCHBOARD SERVICE SECTIONS........................................................................................................................ 517 SWITCHGEAR UNDERGROUND TERMINATING PULL SECTION, MEDIUM VOLTAGE....................................................................... 608 TEST-BYPASS FACILITIES FOR SAFETY SOCKETS...................................................................................................................... 513

TESTING REQUIREMENTS FOR METAL-ENCLOSED SERVICE ENTRANCE AND UNMETERED FEEDER BUSWAYS................................ 010 TRANSFORMER FUSING INFORMATION, SDG&E........................................................................................................................ 007 TRANSFORMER RATED METER [CURRENT TRANSFORMER (CT)]................................................................................................. 515 TRANSFORMER VAULTS........................................................................................................................................................... 009 TRENCH INSPECTIONS......................................................................................................................................................... 004.5 TROLLEY TRACTION STATION, 12KV SERVICE POINT CONNECTION........................................................................................... 609 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

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SUBJECT PAGE TRUCK ACCESS REQUIREMENTS, LINE...................................................................................................................................... 015 TYPICAL PLAQUE FOR EXISTING BUILDINGS WITH INTERMIXED SERVICES............................................................................. 017.3 TYPICAL PLAQUE FOR NEW BUILDINGS OR EXISTING BUILDINGS WITH SEPARATE SERVICE AREAS......................................... 017.2 UNACCEPTABLE METER LOCATIONS...................................................................................................................................... 504.3 UNDERGROUND ELECTRIC SERVICE LATERAL CLEARANCES GASOLINE DISPENSING AND SERVICE STATIONS.......................................................................................................316, 318 LEACH FIELDS................................................................................................................................................................. 319

PROPANE TANKS.................................................................................................................................................... 317 - 318 UNDERGROUND ELECTRIC SERVICE LATERAL CONDUIT REQUIREMENTS.................................................................................... 309 UNDERGROUND PULL CAN WITH CABLE TERMINATION BUS STUBS........................................................................................... 706 UNDERGROUND PULL CAN WITH OR WITHOUT MECHANICAL LUGS........................................................................................... 705 UNDERGROUND PULL SECTION (SEE ELECTRIC TERMINATING ENCLOSURES, 0–600V) SHEET 3 UNDERGROUND SERVICE FROM OVERHEAD FACILITIES (LOW VOLTAGE)................................................................................... 310 UNDERGROUND SERVICE FROM OVERHEAD FACILITIES-PADMOUNT TRANSFORMER................................................................... 311

UNMETERED ELECTRIC SERVICE.............................................................................................................................................. 524 UTILITY METERS.................................................................................................................................................................. 003.3 UTILITY’S CONTRIBUTION TO FAULT CURRENT........................................................................................................................ 006 UTILITY'S CONTRIBUTION TO FAULT CURRENT SECONDARY VOLTAGE SERVICE EXAMPLES........................................................ 008 VENTILATION............................................................................................................................................................ 517.2, 603.4 WIRELESS COMMUNICATIONS ON PRIVATE PROPERTY............................................................................................................. 522

WIRELESS COMMUNICATIONS PROVIDER – METERED ELECTRIC SERVICE.................................................................................. 523 WORK ON UTILITY-OWNED POLES........................................................................................................................................ 004.4 WORKING SPACE LOW VOLTAGE (0–600V)............................................................................................................................................... 504.1 MEDIUM-VOLTAGE SWITCHGEAR................................................................................................................................... 603.3 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C SG308 MOVED TO FMO EDM JIK IPJ CZH 02/08/2021 F B FORMATTING EDM JIK - - 05/22/2020 E A NEW PAGE - LSM LSM TPM 11/01/2017 D EDITORIAL CHANGES EDM JIK JTM KRG 02/26/2025

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GAS SECTION SUBJECT PAGE BARRICADES FOR GAS METER SETS....................................................................................................................................... 1014 BILLING ACCOUNT ESTABLISHMENT................................................................................................................................... 1003.2 BUILDING RECESS FOR GAS SERVICE AND METERS................................................................................................................. 1012 CUSTOMER RESPONSIBILITY FOR APPLIANCES.................................................................................................................... 1003.2 DEFINITIONS OF TERMS........................................................................................................................................................ 1003 ELECTRIC BONDING AND GROUNDING OF GAS PIPE............................................................................................................ 1003.4

ESTABLISHING GAS METER LOCATION AND LOCATION OF CUSTOMER’S HOUSELINE............................................................. 1003.2 EXISTING GAS SERVICE – CUSTOMER REQUESTS FOR ADDITIONAL SERVICES...................................................................... 1006.3 GAS FACILITIES NEAR UNDERGROUND PADMOUNTED EQUIPMENT OR SUBSTRUCTURES.......................................................... 1015 GAS METER CAPACITY AND SELECTION.................................................................................................................................. 1005 GAS METERS GROUPED ON METER HEADERS....................................................................................................................... 1010.1 GAS SERVICE AND METERING............................................................................................................................................. 1003.1 GAS SERVICE AND METER BEHIND WING WALLS.................................................................................................................... 1011

GAS SERVICE RISER AND HOUSELINE SPACING, CLEARANCES, AND MINIMUM WORKING SPACE............................................... 1009 GAS TRENCH ONLY FOR SAN DIEGO COUNTY......................................................................................................................... 1004 HOUSELINE MODIFICATIONS.............................................................................................................................................. 1003.3 MARKOUT SERVICE............................................................................................................................................................ 1003.4 METER AND SERVICE LOCATION............................................................................................................................................ 1006 METER CABINET FOR SINGLE RESIDENTIAL GAS METER.......................................................................................................... 1008

METER LOCATIONS............................................................................................................................................................... 1006 MOBILE HOME METER PAD.................................................................................................................................................... 1013 NUMBER OF SERVICES ALLOWED TO A BUILDING................................................................................................................ 1006.2 OWNERSHIP AND MAINTENANCE OF UTILITY’S FACILITIES.................................................................................................. 1003.3 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C SG308 MOVED TO FMO EDM JIK IPJ CZH 02/08/2021 F B FORMATTING EDM JIK - - 05/22/2020 E A NEW PAGE - LSM LSM TPM 11/01/2017 D EDITORIAL CHANGES EDM JIK JTM KRG 02/26/2025

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SUBJECT PAGE PURPOSE........................................................................................................................................................................... 1003.1 RESALE OF NATURAL GAS................................................................................................................................................... 1003.4 SCOPE............................................................................................................................................................................... 1003.1 SERVICE LOCATIONS.......................................................................................................................................................... 1006.4 SIGNAGE REQUIREMENTS FOR GAS SERVICE LOCATIONS ON MULTI-TENANT BUILDINGS...................................................... 1003.2 TERRITORY SERVED........................................................................................................................................................... 1003.1

UTILITY PLACEMENT IN JOINT TRENCH AND GAS METER SET ASSEMBLY INSTALLATION.......................................................... 1007 UTILITY’S RIGHT OF ACCESS TO CUSTOMER’S PREMISES........................................................................................................ 1003 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C SG308 MOVED TO FMO EDM JIK IPJ CZH 02/08/2021 F B FORMATTING EDM JIK - - 05/22/2020 E A NEW PAGE - LSM LSM TPM 11/01/2017 D EDITORIAL CHANGES EDM JIK JTM KRG 02/26/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG024.9 9 OF 9 ALPHABETICAL SUBJECT INDEX

PAGE SUBJECT 102 RESIDENTIAL, COMMERCIAL AND INDUSTRIAL OVERHEAD ALPHABETICAL SUBJECT INDEX 103 SERVICE DROPS – OVERHEAD ELECTRIC 104 SERVICE DROP SUPPORTS 105 OVERHEAD SERVICE ATTACHMENT FOR METALLIC CONDUIT RISERS 106 OVERHEAD SERVICE ATTACHMENT FOR SOLID WOOD RISERS 107 SERVICE DROP CONDUCTOR CLEARANCES, 0–600V 108 OVERHEAD ELECTRIC CLEARANCES OVER SWIMMING POOLS 109 SERVICE HEADS 110 BUSWAY SERVICE HEADS 111 SERVICE ENTRANCE RACEWAYS 112 SERVICE ENTRANCE CONDUCTORS, 0–600V © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 04/24/2023 E A NEW PAGE - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG101.1 1 OF 1 RESIDENTIAL, COMMERCIAL, AND INDUSTRIAL OVERHEAD TABLE OF CONTENTS

SUBJECT PAGE ALUMINUM SERVICE ENTRANCE CONDUCTORS...................................................................................................................... 112.6 BUSWAY SERVICE HEADS........................................................................................................................................................ 110 CLEARANCES ABOVE COMMERCIAL OR INDUSTRIAL BUILDINGS AND STRUCTURES, SERVICE ENTRANCE CONDUCTORS, 0-600V............ 112.6 ABOVE GROUND, THOROUGHFARES, DRIVEWAYS AND PUBLIC/PRIVATE PROPERTY......................................................... 107.8 COMMERCIAL OR INDUSTRIAL PREMISES SERVICE DROP CONDUCTOR, 0–600V.............................................................. 107.6 FROM BUILDINGS AND STRUCTURES, RESIDENTIAL, COMMERCIAL/INDUSTRIAL PREMISES.................................. 107.11, 112.6 FROM DOORS, EXITS, WINDOWS, FIRE ESCAPES, BALCONIES, ETC................................................................................ 107.4

FROM OTHER CONDUCTORS......................................................................................................................................... 107.9 FROM SIGNS.............................................................................................................................................................. 107.10 HORIZONTAL AND VERTICAL CLEARANCES OF SUPPLY AND SERVICE DROP CONDUCTORS FROM BUILDINGS, BRIDGES AND OTHER STRUCTURES............................................................................................................................... 107.7 OVER BUILDINGS AND STRUCTURES................................................................................................................. 107.1 – 107.3 OVER THOROUGHFARES, FROM BUILDINGS AND AT POINT OF ATTACHMENT TO BUILDING RESIDENTIAL PREMISES........................................................................................................................................ 107.5

COMMERCIAL OR INDUSTRIAL PREMISES............................................................................................................... 107.6 SWIMMING POOLS........................................................................................................................................................... 108 CONNECTION OF SERVICE ENTRANCE CONDUCTORS TO SERVICE DROP CONDUCTORS........................................................... 112.4 DRIP LOOPS.......................................................................................................................................... 103.4, 104.5, 112.4, 112.6 GALVANIZED RIGID CONDUIT RISER OR INTERMEDIATE METALLIC CONDUIT FOR OVERHEAD SERVICE ATTACHMENT................................................................................................................................... 105 GENERAL INFORMATION BUSWAY SERVICE HEADS................................................................................................................................................. 110

OVERHEAD ELECTRIC CLEARANCES OVER SWIMMING POOLS............................................................................................. 108 SERVICE DROPS, OVERHEAD ELECTRIC................................................................................................................ 103.1, 103.4 SERVICE DROP SUPPORT................................................................................................................................................. 104 SERVICE DROP CONDUCTOR CLEARANCES, 0-600V............................................................................................... 107.1, 107.8 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG102.1

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SUBJECT PAGE SERVICE ENTRANCE CONDUCTORS, 0-600V............................................................................................. 112.1, 112.3 – 112.4 SERVICE ENTRANCE RACEWAYS....................................................................................................................................... 111 SERVICE HEADS.............................................................................................................................................................. 109 GROUNDING AND BONDING................................................................................................................................................. 112.6 IDENTIFICATION, SERVICE ENTRANCE CONDUCTORS, 0–600V............................................................................................... 112.4 INSTALLATION METHOD, SERVICE ENTRANCE RACEWAYS......................................................................................................... 111

OVERHEAD ELECTRIC CLEARANCES OVER SWIMMING POOLS.................................................................................................... 108 MINIMUM VERTICAL AND RADIAL CLEARANCES OVER SWIMMING POOLS........................................................................... 108 OVERHEAD SERVICE ATTACHMENT FOR METALLIC CONDUIT RISERS......................................................................................... 105 OVERHEAD SERVICE ATTACHMENT FOR SOLID WOOD RISERS.................................................................................................. 106 RISERS CLEARANCE RISERS OR STRUCTURES............................................................................................................................... 104 METALLIC CONDUIT RISERS............................................................................................................................................. 105 SOLID WOOD RISERS......................................................................................................................................................

106 SEALING SERVICE ENTRANCE RACEWAYS AND METERING ENCLOSURES.................................................................................... 111 SERVICE DROPS.............................................................................................................................................................................................. 103 ATTACHMENTS................................................................................................................................................. 103, 105, 106 COMMERCIAL AND INDUSTRIAL BUILDINGS OR STRUCTURES............................................................................. 103.2 – 103.4 CONDUCTOR CLEARANCES............................................................................................................................................... 107 GENERAL INFORMATION............................................................................................................................................... 103.4

IMPAIRED CLEARANCES................................................................................................................................................ 103.5 LENGTH................................................................................................................................................................................................ 103.1 RESIDENTIAL BUILDINGS OR STRUCTURES.................................................................................................103.1, 103.2 – 103.4, 103.5 SUPPORTS............................................................................................................................................................................................... 104 SWIMMING POOLS................................................................................................................................................................................. 108 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

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SUBJECT PAGE SERVICE DROP SUPPORTS....................................................................................................................................................... 104 ATTACHMENT RISER, ANGLE IRON RACK....................................................................................................................... 104.1 BUILDINGS OTHER THAN WOOD................................................................................................................................... 104.4 CLEARANCE RISERS OR STRUCTURES............................................................................................................................ 104.4 GENERAL INFORMATION............................................................................................................................................... 104.1 INSTALLATION................................................................................................................................................. 104.4 – 104.5

MAINTENANCE RESPONSIBILITY AND LIABILITY............................................................................................................. 104.5 WOOD BUILDINGS........................................................................................................................................................ 104.4 WOOD-REINFORCING BLOCK........................................................................................................................................ 104.4 SERVICE ENTRANCE CABLE.................................................................................................................................................. 112.5 SERVICE ENTRANCE CONDUCTORS, 0–600V............................................................................................................................. 112 CONNECTION OF SERVICE ENTRANCE CONDUCTORS TO SERVICE DROP CONDUCTORS.................................................... 112.4

DEFINITIONS............................................................................................................................................................... 112.1 IDENTIFICATION.......................................................................................................................................................... 112.4 MAXIMUM LENGTH OF SERVICE ENTRANCE CONDUCTORS.............................................................................................. 112.4 OTHER CONDUCTORS IN SERVICE ENTRANCE RACEWAYS............................................................................................... 112.5 SERVICE ENTRANCE CABLE........................................................................................................................................... 112.5 SIZE AND CAPACITY..................................................................................................................................................... 112.5

TAPS AND SPLICES IN SERVICE RACEWAYS.................................................................................................................... 112.5 SERVICE ENTRANCE RACEWAYS...............................................................................................................................................111 SERVICE HEADS...................................................................................................................................................................... 109 LOCATION.................................................................................................................................................................... 109.1 MULTIPLE SERVICE HEAD INSTALLATIONS..................................................................................................................... 109.2 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F

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SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR OVERHEAD ELECTRIC SERVICE DROPS FOR RESIDENTIAL AND COMMERCIAL BUILDINGS OR STRUCTURES. ATTENTION: * WHERE SDG&E’S DISTRIBUTION POLE LINE IS LOCATED ON THE CUSTOMER’S PREMISES, OR ON A STREET, HIGHWAY, LANE, ALLEY, ROAD, OR PRIVATE EASEMENT CONTIGUOUS THERETO, SDG&E (UTILITY) WILL, AT ITS OWN EXPENSE, FURNISH AND INSTALL A SERVICE DROP (SINGLE SPAN OF SERVICE WIRES) FROM ITS POLE LINE TO THE CUSTOMER’S PERMANENT SERVICE DROP SUPPORT. UPON THE UTILITY’S RECEIPT OF APPROVAL FROM THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ), THE UTILITY WILL CONNECT TO THE CUSTOMER'S SERVICE ENTRANCE CONDUCTORS PROVIDED SUCH SUPPORT IS OF A TYPE ACCEPTABLE TO THE UTILITY. ** THE CUSTOMER IS REQUIRED TO PROVIDE, OR PAY FOR, A CLEAR ROUTE ON ANY PRIVATE PROPERTY THAT IS CLEAR OF OBSTRUCTIONS WHICH WOULD INHIBIT THE CONSTRUCTION OF OVERHEAD SERVICE FACILITIES. THIS INCLUDES TREE TRIMMING, OR TREE REMOVAL, IF REQUIRED. *** THE MAXIMUM LENGTH OF SERVICE DROP NORMALLY SHALL NOT EXCEED 100 FEET. IN ORDER TO MINIMIZE SERVICE DROP STRESS

ON THE BUILDING, THE POINT OF ATTACHMENT SHALL BE LOCATED AS NEAR AS PRACTICABLE TO THE UTILITY'S SERVICE POLE. WHERE THE CHARACTER OF LOAD NECESSITATES HEAVY SERVICE DROP CONDUCTORS WITH EXCESSIVE SAG AND STRESS, THE MAXIMUM LENGTH OF SERVICE DROP SHALL BE SUBJECT TO APPROVAL OF THE UTILITY’S SERVICE PLANNER. UTILITY’S POLE LINE I 10’-0” MIN. LESS THAN I LESS THAN LESS THAN I 10’-0” I 10’-0” 10’-0” 1’-6” MAX. 7’-0” MAX. II II 12’-0” IV G MAX. III 1 EXAMPLE 1 EXAMPLE 2 EXAMPLE 3 EXAMPLE 4 FLAT ROOF C GABLE ROOF GABLE ROOF B E HIP ROOF FOR EXCEPTION D1 FOR EXCEPTIONS D E FIGURE 1 RESIDENTIAL BUILDINGS OR STRUCTURES PLAN VIEW SEE TABLE 1 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 05/09/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG103.1 1 OF 6 SERVICE DROPS – OVERHEAD ELECTRIC

2’-0” MAX. VII 1’-6” MAX. V 3 6’-0” MAX. VI 1’-6” MAX. 4’-0” MAX. IV 2 WALL FACING AND 2 PATIO COVER NEAREST UTILITY’S POLE LINE FIGURE 2 FIGURE 3 MAXIMUM PERMISSIBLE LENGTH OF SERVICE DROP OVER ROOF NO TRUCK OR LADDER ACCESS TO SERVICE DROP ATTACHMENT RISER PLAN VIEW PLAN VIEW SEE TABLE 1 SEE TABLE 1 UTILITY’S POLE LINE 4 L IX XI VIII OPTIONAL OPTIONAL LOCATIONS LOCATIONS ON OPTIONAL HIGHER PART OF LOCATIONS BUILDING EXAMPLE 1 EXAMPLE 2 EXAMPLE 3 EXAMPLE 4 WALL FACING AND PLAN VIEW J LOW SHED-TYPE K XII INADEQUATE K XIII NEAREST LINE AFFORDING B BUILDING WALLS CLEARANCES ADEQUATE CLEARANCE PLAN VIEW PLAN VIEW FIGURE 4 COMMERCIAL AND INDUSTRIAL BUILDINGS OR STRUCTURES SEE TABLE 1 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 05/09/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

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UTILITY’S POLE LINE INTERVENING 8’-0” MIN. N LOT N 8’-0” MIN. 7 30’-0” 10’-0” MAX. MIN. ON ANY BUILDING 6 5 EXAMPLE 5 EXAMPLE 6 EXAMPLE 7 SERVICE DROP OVER SERVICE DROP CLEARANCE OVER MAXIMUM HEIGHT INTERVENING LOT B M STAIRWAYS AND SHED-TYPE SERVICE DROP ATTACHMENT NOT PERMITTED BUILDING PROJECTIONS PROFILE VIEW PLAN VIEW PROFILE VIEW FIGURE 4 (CONT’D) COMMERCIAL AND INDUSTRIAL BUILDINGS OR STRUCTURES SEE TABLE 1 TABLE 1 SERVICE DROPS DESCRIPTION LIST ITEM DESCRIPTION 1 ATTACHMENT, SERVICE DROP 2 SERVICE DROP 3 RISER, SERVICE DROP ATTACHMENT 4 BUILDING PROJECTIONS, SHED-TYPE, LOW 5 STAIRWAYS, ETC. 6 BUILDING PROJECTIONS, SHED-TYPE 7 SERVICE DROP CROSSING OVER ROOF PROJECTION TO NEAREST WALL © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 05/09/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG103.3 3 OF 6 SERVICE DROPS – OVERHEAD ELECTRIC

INSTALLATION: SERVICE DROP ATTACHMENT A. THE POINT OF SERVICE DROP ATTACHMENT SHALL NORMALLY BE LOCATED ON THAT PORTION OF A BUILDING OR STRUCTURE FACING AND NEAREST THE STREET, ALLEY, EASEMENT, OR PUBLIC WAY ON WHICH THE UTILITY'S POLE LINE IS LOCATED, AND INSTALLED AT A HEIGHT NOT LESS THAN SPECIFIED HEREIN FOR RESIDENTIAL, COMMERCIAL AND INDUSTRIAL BUILDINGS (SEE SG107). THIS IS TO PERMIT THE SERVICE DROP CONDUCTORS TO BE: 1. INSTALLED AND MAINTAINED IN ACCORDANCE WITH VERTICAL, HORIZONTAL AND RADIAL CLEARANCES REQUIRED ABOVE GROUND AND FROM ROOFS, OBSTRUCTIONS, WINDOWS, DOORWAYS, OPENINGS, BALCONIES, FIRE ESCAPES, SWIMMING POOLS AND OTHER CONDUCTORS. 2. RUN FREE OF OBSTRUCTION FROM TREES, STRUCTURES, POLES, MASTS, ANTENNAS, VENTS, FLOOD LIGHTS, ETC. AN 18-INCH RADIAL CLEARANCE IS REQUIRED FROM ELECTRIC RISERS SUPPORTING SERVICE CONDUCTORS TO VENTS OR CHIMNEYS CONVEYING PRODUCTS OF COMBUSTION TO THE OUTSIDE ATMOSPHERE, SUCH AS A WATER HEATER VENT OR WOOD BURNING STOVE VENT. A VENT SHALL NOT BE INSTALLED WITHIN THE WORKING SPACE OF THE ELECTRICAL EQUIPMENT. 12-INCH

MINIMUM RADIAL CLEARANCE IS REQUIRED FROM VENTS TO SERVICE DROP CONDUCTORS CROSSING OVER A STRUCTURE TO WITHIN 18 INCHES OF THE RISER. 3. INSTALLED AT AN APPROACH ANGLE OF NOT LESS THAN 30 DEGREES WITH THE BUILDING WALL WHEN SERVICE ATTACHES BELOW ROOFLINE. 4. READILY ACCESSIBLE FOR INSTALLATION, INSPECTION AND MAINTENANCE. 5. INSTALLED AT A LOCATION WHERE THE WEATHERHEAD AND POINT OF ATTACHMENT ARE SAFELY ACCESSIBLE FROM A LADDER PLACED ON THE GROUND. DISTANCE FROM THE LADDER TO THE WEATHERHEAD AND POINT OF ATTACHMENT IS NOT TO EXCEED 24 INCHES. 6. ATTACHED AT ONLY ONE POINT ON THE BUILDING AND WITHOUT INTERMEDIATE SUPPORT. 7. ATTACHED IN THE PROXIMITY OF THE SERVICE ENTRANCE SO THAT THE OPEN WIRING BETWEEN THE SERVICE DROP AND THE SERVICE HEAD (DRIP LOOP) DOES NOT EXCEED 3 FEET. 8. ATTACHED AT NOT MORE THAN 30 FEET ABOVE THE GROUND. 9. SO ARRANGED AS NOT TO HAMPER OR ENDANGER WORKERS AND FIREMEN IN THE PERFORMANCE OF THEIR DUTIES. 10. SUBSTANTIALLY SUPPORTED AT THE BUILDING.

B THE SERVICE DROP WILL NORMALLY BE RUN TO THE BUILDING OR STRUCTURE FROM THE UTILITY’S NEAREST POLE ADJACENT TO THE PREMISES. UNDER THIS CONDITION THE SERVICE DROP MAY, WHERE APPROVED BY THE UTILITY, CROSS AN ADJOINING PREMISES PROVIDED THE NECESSARY RIGHTS-OF-WAY CAN BE OBTAINED AT NO COST TO THE UTILITY. IN EVERY CASE, THE POINT OF SERVICE DROP ATTACHMENT SHALL BE LOCATED ON THE WALL FACING AND NEAREST THE UTILITY’S POLE LINE OR WITHIN 18 INCHES OF THAT POINT TO PERMIT THE UTILITY, AS NECESSITATED FOR ITS OPERATING CONVENIENCE, TO INSTALL A SERVICE DROP FROM SOME POINT ALONG ITS LINE PASSING THE PREMISES SERVED WHETHER OR NOT A POLE EXISTS. SEE FIGURE 1 – EXAMPLE 3, AND FIGURE 3 – EXAMPLES 1 AND 5. RESIDENTIAL BUILDINGS OR STRUCTURES C THE POINT OF SERVICE DROP ATTACHMENT ON A RESIDENTIAL BUILDING OR STRUCTURE SHALL NORMALLY BE LOCATED ON THE WALL FACING AND NEAREST THE UTILITY'S POLE LINE, AND SO LOCATED THAT THE SERVICE HEAD, SERVICE DROP AND OPEN WIRES BETWEEN THE SERVICE HEAD AND POINT OF CONNECTION TO THE SERVICE DROP (DRIP LOOP) WILL HAVE NOT LESS THAN

12-FOOT CLEARANCE ABOVE FINAL GRADE ON RESIDENTIAL PREMISES, AND WHENEVER NECESSARY, BE LOCATED AT A GREATER HEIGHT TO OBTAIN REQUIRED CLEARANCES. THE 12-FOOT CLEARANCE MAY BE REDUCED FOR INSULATED SERVICES (SSC) TO NOT LESS THAN 10 FEET. SEE FIGURE 1 – EXAMPLE 1. RESIDENTIAL DWELLING UNITS EXCEEDING TWO IN NUMBER ON THE SAME PREMISES ARE CLASSIFIED AS A COMMERCIAL ENTERPRISE AND PREMISES, REQUIRING THE SERVICE DROP ATTACHMENT TO BE LOCATED AT A POINT AFFORDING COMMERCIAL SERVICE DROP CLEARANCES. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 05/09/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG103.4 4 OF 6 SERVICE DROPS – OVERHEAD ELECTRIC

INSTALLATION (CONT’D): D THE POINT OF SERVICE DROP ATTACHMENT MAY BE SELECTED ON A RESIDENCE SIDE WALL WHICH IS AT RIGHT ANGLES TO THE UTILITY'S POLE LINE, WHERE THE WALL OF THE RESIDENCE FACING AND NEAREST THE UTILITY'S POLE LINE DOES NOT AFFORD SUFFICIENT SERVICE DROP CLEARANCE ABOVE GROUND OR FROM OBSTRUCTIONS. SUCH A LOCATION IS SUBJECT TO APPROVAL BY THE SERVICE PLANNER, AND TO CONFORMANCE WITH PROVISIONS OF THE FOLLOWING EXCEPTIONS: 1 EXCEPTION FOR OBTAINING GROUND CLEARANCE WHERE THE HEIGHT OF A RESIDENCE WALL FACING AND NEAREST THE UTILITY'S POLE LINE IS INSUFFICIENT TO OBTAIN SERVICE DROP CONDUCTOR CLEARANCE WITHOUT THE INSTALLATION OF A CLEARANCE RISER OR STRUCTURE ON THE FRONT OF THE RESIDENCE, A POINT OF SERVICE DROP ATTACHMENT MAY BE LOCATED UP THE GABLE WALL NOT FARTHER BACK THAN IS NECESSARY TO OBTAIN SERVICE DROP CLEARANCE, BUT IN NO CASE MORE THAN 12 FEET BACK FROM THE WALL FACING THE UTILITY'S POLE LINE NOR FURTHER BACK THAN THE PEAK OF A GABLE ROOF. SEE FIGURE 1 – EXAMPLE 2. THE SERVICE DROP

CONDUCTORS MAY NOT PASS OVER THE ROOF (EXCLUDING EAVES) OF THE RESIDENCE SERVED. 2. EXCEPTION FOR CLEARING WINDOWS AND OBSTRUCTIONS WHERE WINDOWS OR OTHER BUILDING COMPONENTS CONFLICT WITH PROVIDING AN ACCEPTABLE POINT OF SERVICE DROP ATTACHMENT ON THE WALL FACING AND NEAREST THE UTILITY'S POLE LINE, OR WITHIN 18 INCHES OF THAT POINT, A RISER OR STRUCTURE MAY BE LOCATED ON A RESIDENCE SIDE WALL. THIS LOCATION MAY NOT BE FARTHER BACK THAN IS NECESSARY TO OBTAIN SERVICE DROP CLEARANCES, BUT IN NO CASE MORE THAN 7 FEET BACK FROM THE WALL FACING THE POLE LINE. SERVICE DROP CONDUCTORS MAY NOT PASS OVER THE ROOF (EXCLUDING EAVES) OF THE RESIDENCE SERVED. IN EITHER EXCEPTION, THE SERVICE DROP ATTACHMENT SHALL BE LOCATED AT A POINT WHICH WILL NOT REQUIRE THE SERVICE DROP TO PASS OVER AN ADJACENT LOT OR A BUILDING SITE ON THE SAME PREMISES. E WHERE THE HEIGHT OF A RESIDENCE WILL NOT AFFORD SUFFICIENT SERVICE DROP CLEARANCE ABOVE GROUND OR FROM OBSTRUCTIONS, A SERVICE DROP SUPPORT RISER OR STRUCTURE SHALL BE INSTALLED ON THE WALL FACING, OR WITHIN 18

INCHES OF THAT POINT, AND NEAREST THE UTILITY'S POLE LINE TO PROVIDE CLEARANCE. SEE FIGURE 1 – EXAMPLES 3 AND 4. IMPAIRED CLEARANCES F. WHEN ANY OF THE SERVICE DROP CLEARANCES REQUIRED BY THE UTILITY, OR THE AHJ, BECOME IMPAIRED BECAUSE OF CHANGES CREATED BY THE TENANT OR OWNER OF THE PREMISES, IT IS INCUMBENT UPON THE CUSTOMER, AT THEIR EXPENSE, TO PROVIDE A MEANS TO CORRECT THE INFRACTION. G TO OBTAIN PROPER CLEARANCES, THE POINT OF SERVICE DROP ATTACHMENT MAY BE SELECTED NOT MORE THAN 12 FEET BACK FROM WALL FACING UTILITY’S POLE LINE TO AVOID INSTALLATION OF RISER ON FACE OF RESIDENCE. ATTENTION: * WHEN THE DISTANCE FROM BUILDING TO AN OBSTRUCTION WILL NOT ACCOMMODATE SAFE USE OF A LADDER FOR ACCESS, BUCKET TRUCK ACCESS IS REQUIRED. COMMERCIAL – INDUSTRIAL BUILDINGS OR STRUCTURES H. THE POINT OF SERVICE DROP ATTACHMENT ON A COMMERCIAL OR INDUSTRIAL BUILDING SHALL NORMALLY BE LOCATED ON THE WALL FACING AND NEAREST THE UTILITY'S POLE LINE, AND SO LOCATED THAT THE SERVICE HEAD, SERVICE DROP AND THE OPEN

WIRES BETWEEN THE SERVICE HEAD AND POINT OF CONNECTION TO THE SERVICE DROP WILL HAVE NOT LESS THAN 16 FEET OF CLEARANCE ABOVE FINISHED GRADE, AND WHENEVER NECESSARY BE LOCATED AT A GREATER HEIGHT TO OBTAIN REQUIRED CLEARANCES. THE 16-FOOT CLEARANCE MAY BE REDUCED FOR INSULATED SERVICES (SSC) TO NOT LESS THAN 10 FEET IN AREAS ACCESSIBLE TO PEDESTRIANS ONLY. a J WHERE THE SERVICE DROP WILL PASS OVER ONLY THE PREMISES SERVED, THE POINT OF SERVICE DROP ATTACHMENT MAY BE ON ANY WALL OF THE BUILDING FACING AND PARALLEL TO THE UTILITY'S POLE LINE. SEE FIGURE 4 – EXAMPLE 2. K WHERE THE BUILDING WALL FACING AND NEAREST THE UTILITY'S POLE LINE IS ON A SHED OR SIMILAR BUILDING PROJECTION, WHICH DOES NOT AFFORD SUFFICIENT SERVICE DROP CLEARANCE WITHOUT THE INSTALLATION OF A SERVICE DROP SUPPORT RISER OR STRUCTURE, AND THERE IS ANOTHER WALL OF ADEQUATE HEIGHT FACING THE UTILITY'S POLE LINE, THE POINT OF SERVICE DROP ATTACHMENT MAY BE LOCATED ON SUCH WALL, PROVIDED APPLICABLE CLEARANCES CAN BE OBTAINED. SEE FIGURE 4 – EXAMPLE 3.

THIS OPTION DOES NOT APPLY TO A BUILDING OF NORMAL HEIGHT OR CONSTRUCTION HAVING A © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 05/09/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG103.5 5 OF 6 SERVICE DROPS – OVERHEAD ELECTRIC

INSTALLATION (CONT’D): HIGHER SECTION SET BACK FROM THE WALL FACING AND NEAREST THE UTILITY'S POLE LINE, SUCH AS A HIP ROOF. WHEN SERVICE DROP CLEARANCES CANNOT BE MET, A SERVICE DROP SUPPORT RISER OR STRUCTURE SHALL BE PROVIDED ON THE WALL FACING AND NEAREST THE UTILITY'S POLE LINE TO OBTAIN REQUIRED CLEARANCES. SEE FIGURE 4 – EXAMPLE 4. L BUCKET TRUCK ACCESS REQUIRED IF DISTANCE FROM LADDER TO WEATHERHEAD AND POINT OF ATTACHMENT EXCEEDS 24 INCHES OR REQUIRED WORKING SPACE FOR A LADDER IS NOT MET. M SERVICE DROP ATTACHMENT TO BE LOCATED WHERE DIRECTED BY THE UTILITY. N ROOF CLEARANCE APPLIES TO ALL COMMERCIAL AND INDUSTRIAL BUILDINGS AND TO METAL ROOFS. BILL OF MATERIALS: NONE NOTES: I NEAREST WALL HEIGHT II SERVICE DROP ATTACHMENT RISER IS REQUIRED. III SERVICE DROP ATTACHMENT NOT PERMITTED WHEN SERVICE DROP CROSSES ADJOINING PREMISES. IV SERVICE DROP ATTACHMENT NOT PERMITTED. V MAXIMUM LENGTH OF SERVICE DROP OVER ROOF. VI OVER ROOF AND OVERHANG LIMITED TO 6 FEET OF CONDUCTOR. VII MAXIMUM EAVE OVERHANG (FOR LADDER ACCESS TO WEATHERHEAD AND POINT OF ATTACHMENT)

VIII LOCATION OVER SHED-TYPE PROJECTIONS NOT RECOMMENDED DUE TO CLEARANCE REQUIREMENTS. IX LOCATION NOT APPROVED. SERVICE DROP CROSSES ADJOINING PREMISES. XI ANOTHER WALL FACING LINE. SERVICE DROPS PERMITTED ONLY ACROSS PREMISES SERVED. XII DO NOT PROVIDE CLEARANCE WITHOUT INSTALLATION OF A RISER. OPTIONAL SERVICE DROP ATTACHMENT LOCATION PERMITTED ON HIGHER PART OF BUILDING. XIII FOR A WALL WITH INADEQUATE SERVICE DROP CLEARANCE, RISER IS REQUIRED. WHEN NEAREST WALL DOES NOT AFFORD CLEARANCE, SERVICE DROP SUPPORT RISER REQUIRED. REFERENCE: a SEE SG107. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 05/09/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG103.6 6 OF 6 SERVICE DROPS – OVERHEAD ELECTRIC

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR SERVICE DROP SUPPORTS. ATTENTION: * A SERVICE DROP WILL BE ATTACHED AT ONLY ONE POINT OF SUPPORT ON A BUILDING. AT THIS POINT OF SUPPORT, THE BUILDING SHALL HAVE ADEQUATE STRENGTH TO SAFELY WITHSTAND THE STRESS OF THE SERVICE DROP CONDUCTORS. ** WHERE, IN THE OPINION OF SDG&E (UTILITY), A BUILDING DOES NOT AFFORD SUFFICIENT STRENGTH TO SAFELY SUPPORT SERVICE DROP CONDUCTORS, AN UNDERGROUND SERVICE OR A CUSTOMER-OWNED SERVICE AND METER POLE SHOULD BE INSTALLED. *** WHERE THE SIZE OF SERVICE ENTRANCE CONDUCTORS INDICATES UNUSUALLY HEAVY SERVICE DROP CONDUCTORS WILL BE REQUIRED, CONTACT THE UTILITY'S NEAREST DESIGN AND PROJECT MANAGEMENT REGIONAL OFFICE. a C 2’-0” 1 1/2” 10 1/2” WELD 10 1/2” 1 1/2” WELD 2 F 2’-6” MAX. IV 1 1 1 FIGURE 1 SERVICE DROP ATTACHMENT RISER III ANGLE IRON RACK SEE TABLE 1 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE

C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/02/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG104.1 1 OF 5 SERVICE DROP SUPPORTS

G FIGURE 2 TYPICAL INSTALLATION SERVICE HEAD IS BELOW POINT OF ATTACHMENT ROOF 3 RAFTERS NON-METALLIC 1’-0” MIN. ROOF 4 EXAMPLE 1 EXAMPLE 2 RAFTER ENDS UN-ENCLOSED EAVE OR ROOF OVERHANG ROOF 5 EXAMPLE 3 FASCIA BOARD-ENCLOSED OR UN-ENCLOSED EAVES FIGURE 3 SEE TABLE 1 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/02/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG104.2 2 OF 5 SERVICE DROP SUPPORTS

4 ROOF OR 5 2’-0” MAX. FASCIA BOARD M ROOF EXAMPLE 4 BARGEBOARD 6 M EXAMPLE 5 CONCEALED STUDS OR TIMBERS M 3 NON-METALLIC ROOF 7 1’-0” MIN. 1’-6” MAX. 2’-0” MAX. 9 H J 8 EXAMPLE 6 WOOD REINFORCING BLOCK FIGURE 3 (CONT’D) SEE TABLE 1 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/02/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG104.3 3 OF 5 SERVICE DROP SUPPORTS

TABLE 1: SERVICE DROP SUPPORT ITEM DESCRIPTIONS ITEM DESCRIPTION 1 HOLES, 5/16'' DIA., FOR 1/4'' X 3'' LAG SCREWS 2 HOLES, 5/16'' DIA., FOR 1/4'' DIAMETER GALV. BOLTS 3 SERVICE HEAD, PREFERRED POSITION 4 BARGEBOARD, 2'' NOMINAL THICKNESS 5 FASCIA BOARD, 2'' NOMINAL THICKNESS 6 INSULATOR, SERVICE, SCREWED INTO STUDS SCREWS, LAG, 3/8'' X 5'', MIN. 2 7 WASHER, LARGE, ROUND FLAT 8 SERVICE HEAD, ALTERNATE POSITION 9 BOARD, PRESSURE TREATED, 2'' X 4'' INSTALLATION: WOOD BUILDINGS: A. THE UTILITY WILL FURNISH, AT THE CONTRACTOR’S REQUEST, A SERVICE BRACKET OR INSULATORS TO SUPPORT SERVICE DROP CONDUCTORS ON A WOOD FRAME OR STUCCO BUILDING, PROVIDED THE WOOD BUILDING MEMBERS HAVE NOT LESS THAN A 2- INCH NOMINAL THICKNESS AND ARE PROPERLY LOCATED WITH RESPECT TO A POINT OF SERVICE DROP ATTACHMENT ACCEPTABLE TO THE UTILITY. THE FOLLOWING WOOD STRUCTURAL MEMBERS ARE APPROVED FOR SUPPORTING SERVICE DROP CONDUCTORS: 1. AN UN-ENCLOSED, NON-METALLIC ROOF OVERHANG, EAVE OR RAFTER END PROJECTING OUTSIDE AN EXTERIOR WALL. 2.

A FASCIA, BARGEBOARD, OR AN UN-ENCLOSED EAVE PROJECTING OUTSIDE AN EXTERIOR WALL. WOOD REINFORCING BLOCK: B. WHERE THE WOOD ROOF OR EAVE OVERHANG MEMBERS AT THE POINT OF SERVICE DROP SUPPORT HAVE LESS THAN A 2-INCH NOMINAL THICKNESS, OR ARE OTHERWISE CONSIDERED TO BE INADEQUATE TO WITHSTAND THE PULL OF THE SERVICE DROP CONDUCTORS, A 2” X 4” MINIMUM WOOD REINFORCING BLOCK OF SUFFICIENT LENGTH SHALL BE LAGGED OR BOLTED TO THE ROOF RAFTERS TO PROVIDE A SAFE ANCHORAGE FOR INSTALLATION OF SERVICE INSULATORS BY THE UTILITY. C. SERVICE INSULATORS OR WOOD REINFORCING BLOCKS FOR THE SUPPORT OF SERVICE INSULATORS SHALL NOT BE INSTALLED IN ANY ROOF SECTION INSIDE THE OUTER FACE OF AN EXTERIOR WALL OR ROOF SURFACE OF AN ENCLOSED CORNICE OR WITHIN A SOFFIT. SEE FIGURE 3 – EXAMPLE 6. BUILDINGS OTHER THAN WOOD: D. THE CONTRACTOR SHALL INSTALL BOLTS, SERVICE INSULATORS OR OTHER SUITABLE MEANS OF SERVICE DROP CONDUCTOR SUPPORT ON BUILDINGS CONSTRUCTED OF TILE, BRICK, CONCRETE, ADOBE, STONE, METAL OR SIMILAR MATERIAL. THE UTILITY

WILL FURNISH, AT THE CONTRACTOR’S REQUEST, BOLTS OR INSULATORS NECESSARY TO SUPPORT THE SERVICE DROP CONDUCTORS. CLEARANCE RISERS OR STRUCTURES: E. WHERE A SERVICE DROP RISER OR STRUCTURE IS NECESSARY ON A BUILDING TO OBTAIN SERVICE DROP CLEARANCE, A GALVANIZED RIGID CONDUIT RISER, INTERMEDIATE METALLIC CONDUIT, OR UN-SPLICED TIMBER SHALL BE SECURELY LAGGED OR BOLTED TO THE BUILDING TO SUPPORT SERVICE INSULATORS FURNISHED AND INSTALLED BY THE UTILITY. GALVANIZED CONDUIT RISERS ARE PREFERRED. b C © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/02/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG104.4 4 OF 5 SERVICE DROP SUPPORTS

F WELD OR BOLT KNEE BRACES. G SERVICE HEAD TO BE LOCATED WITHIN 24 INCHES FROM THE POINT OF ATTACHMENT. DRIP LOOP NOT TO EXCEED 3 FEET. H INSTALL 2” X 4” PRESSURE TREATED BOARD LAGGED TO RAFTERS. NAILING IS NOT ACCEPTABLE. J WOOD BLOCKS FOR SERVICE INSULATOR SUPPORT, OR SERVICE INSULATORS, SHALL NOT BE INSTALLED IN ANY ROOF SECTION INSIDE THE OUTER FACE OF AN EXTERIOR WALL OR ROOF SURFACE OF AN ENCLOSED CORNICE OR WITHIN A SOFFIT. K. SERVICE DROP ATTACHMENT SHOULD NORMALLY BE LOCATED ON THE WALL FACING AND NEAREST THE UTILITY'S POLE LINE. L. IT IS RECOMMENDED THAT SERVICE HEADS BE INSTALLED 1-FOOT ABOVE THE POINT OF SERVICE DROP ATTACHMENT TO PREVENT SIPHONING OF MOISTURE INTO THE SERVICE CONDUIT. WHERE SERVICE HEADS ARE INSTALLED BELOW THE POINT OF SERVICE DROP ATTACHMENT, DRIP LOOPS SHALL BE FORMED IN OPEN SERVICE ENTRANCE CONDUCTORS. TO PREVENT WATER FROM SIPHONING INTO THE SERVICE RACEWAY AND EQUIPMENT, AN INVERTED "V" NOTCH SHOULD BE CUT THROUGH THE INSULATION TO THE CURRENT-CARRYING STRAND(S) AT THE LOWEST POINT ON THE BOTTOM SIDE OF EACH SERVICE ENTRANCE DRIP LOOP.

M INSULATORS WILL BE PROVIDED BY THE UTILITY AND INSTALLED BY THE CONTRACTOR OR CUSTOMER. M N. COMMUNICATION DROPS, ATTACHMENT SUPPORTS AND ANTENNAE ARE TO HAVE A MINIMUM 12-INCH RADIAL CLEARANCE FROM THE SDG&E SERVICE DROP AND SERVICE DROP SUPPORT. BILL OF MATERIALS: NONE NOTES: MAINTENANCE RESPONSIBILITY AND LIABILITY: I. ANY SERVICE DROP CLEARANCE RISER OR STRUCTURE INSTALLED SHALL BE PROPERLY MAINTAINED AT THE EXPENSE OF THE PROPERTY OWNER OR CUSTOMER. II. THE UTILITY WILL NOT ASSUME LIABILITY FOR ANY DAMAGE CAUSED BY: a. ROOF LEAKAGE AROUND A RISER OR ANY OTHER TYPE OF SERVICE DROP SUPPORT. b. MECHANICAL FAILURE OF A RISER OR ANY OTHER TYPE OF SERVICE DROP SUPPORT. c. FAILURE OF ANY PART OF THE BUILDING AT THE POINT WHERE A RISER OR ANY OTHER TYPES OF SERVICE DROP SUPPORT IS ATTACHED. III ALL ANGLE IRON IS TO BE 1 1/4” X 1 1/4” X 1/8”. IV LENGTH OF BRACE VARIES WITH HEIGHT OF RACK AND PITCH OF ROOF. V. ANGLE IRON RACK FOR ATTACHMENT OF UTILITY SERVICE DROP PROVIDED AND INSTALLED BY CUSTOMER. VI. STEEL CLEARANCE STRUCTURES SHALL BE HOT-DIPPED GALVANIZED AFTER FABRICATION.

REFERENCE: a SEE SG021. b FOR METHODS OF ATTACHING SERVICE DROPS TO GALVANIZED CONDUIT AND SOLID WOOD SERVICE DROP SUPPORT RISERS, SEE SG105 – SG106. c. FOR SERVICE DROP CLEARANCES, SEE SG107. d. SEE OH229. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/02/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG104.5 5 OF 5 SERVICE DROP SUPPORTS

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR OVERHEAD SERVICE ATTACHMENT FOR METALLIC CONDUIT RISERS. J J J H 1’-0” MIN. H 1’-0” MIN. H 1’-0” MIN. K K K 1’-0” MIN. 1’-0” MIN. 1’-0” MIN. Y 3 Y 3 Y 3 1 1 1 2 Z 2 G 2 E F E F Z 4’-0” TO 6’-3” 4’-0” TO 6’-3” 4’-0” TO 6’-3” MAX. TO GRADE MAX. TO GRADE MAX. TO GRADE EXAMPLE 1 EXAMPLE 2 EXAMPLE 3 ENCLOSED EXTERIOR 1 EXTERIOR 2 FIGURE 1 GALVANIZED RIGID CONDUIT RISER OR INTERMEDIATE METALLIC CONDUIT FOR OVERHEAD SERVICE ATTACHMENT SEE TABLES 1, 2 AND 3 TABLE 1 TABLE 2 MINIMUM SUPPORT DISTANCE MEASURED FROM MAXIMUM DISTANCE OF CENTERLINE OF LOAD CENTERLINE OF HEAVY DUTY PIPE STRAPS ABOVE ROOF CONDUIT SIZE (IN) Z (IN) CONDUIT SIZE (IN) Y (IN) 1 1/4 12 1 1/4 30 1 1/2 15 1 1/2 40 2 22 2 60 2 1/2 30 2 1/2 96 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG105.1 1 OF 2 OVERHEAD SERVICE ATTACHMENT FOR METALLIC CONDUIT RISERS

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’S POLE LINE. e E HEAVY DUTY TWO-HOLE PIPE STRAPS. UPPER STRAP MUST BE DIRECTLY BELOW SOFFIT (SEE FIGURE 1-EXAMPLE 2) OR SCREWED

WITH 3/8” X 3” LAG SCREWS INTO PLATE (SEE FIGURE 1-EXAMPLE 3). 1/4-INCH TOGGLE BOLTS MAY BE USED IN LIEU OF LAG SCREWS. ZANAC NAIL HEADS 1/4” X 1 7/8” (MUSHROOM) MAY BE USED IN PLACE OF LAG SCREWS WHEN ATTACHING TO CINDER BLOCK OR CONCRETE WALLS. F HEAVY DUTY ONE-HOLE PIPE STRAPS ARE ACCEPTABLE IF USED WITH 3/8” X 3” LAG CREW (MIN. SIZE) INTO WALL STUD OR PLATE. ZANAC NAIL HEADS 1/4” X 1 7/8” (MUSHROOM) MAY BE USED IN PLACE OF LAG SCREWS WHEN ATTACHING TO CINDER BLOCK OR CONCRETE WALLS. G ENCLOSED RISERS MUST BE SECURELY SUPPORTED AT THE PLATE AND IMMEDIATELY ABOVE THE METER SOCKET ENCLOSURE. H THE UTILITY WILL PROVIDE THE CLAMP AND INSULATOR FOR ATTACHMENT OF THE SERVICE DROP TO THE CUSTOMER’S RISER. J ONLY THE UTILITY’S SERVICE DROP CONDUCTORS SHALL BE PERMITTED TO BE ATTACHED TO THE SERVICE RISER. THIS IS A UTILITY AND CALIFORNIA ELECTRICAL CODE REQUIREMENT. K BUCKET TRUCK ACCESS REQUIRED IF DISTANCE FROM LADDER TO WEATHERHEAD AND POINT OF ATTACHMENT EXCEEDS 24 INCHES. BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: a. FOR RECESSED RESIDENTIAL METER INSTALLATION, SEE SG507. b.c.

FOR SINGLE RESIDENTIAL METER INSTALLATION ENCLOSED IN A METER CABINET, SEE SG508. c. FOR COMMERCIAL OR RESIDENTIAL MULTI-METER ENCLOSED IN A CABINET, SEE SG509. d. FOR COMMERCIAL OR RESIDENTIAL MULTI-METER LOCATED IN A METER ROOM, SEE SG506. e FOR EXCEPTIONS TO OBTAIN SERVICE DROP CLEARANCES ON RESIDENTIAL BUILDINGS OR STRUCTURES, SEE SG103. f. SEE OH641. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG105.2 2 OF 2 OVERHEAD SERVICE ATTACHMENT FOR METALLIC CONDUIT RISERS

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR OVERHEAD SERVICE ATTACHMENTS FOR SOLID WOOD RISERS. 6 6 7 8 1’-0” MIN. 1’-0” MIN. DETAILS 1 DETAILS 1, 2 AND 2 AND 3 III 9 III 9 DETAILS DETAILS 1, 2 AND 3 1 AND 2 10 10 1’-0” MIN. 1’-0” MIN. 11 11 CEILING JOIST RAFTER RAFTER 12 12 CEILING JOIST 13 FACE OF G 5 BUILDING 16 2’-6” MAX. 2’-6” MAX. G 1 19 17 STUD A 18 16 STUD FIGURE 3 14 ALTERNATE METHOD 15 OF SECURING RISER PLAN VIEW 15 4’-0” to 6’-3” 20 TO GRADE FIGURE 1 FIGURE 2 SEE TABLE 1 SEE TABLE 1 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/02/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG106.1 1 OF 4 OVERHEAD SERVICE ATTACHMENT FOR SOLID WOOD RISERS

0-300V SERVICE DROP 0-300V SERVICE DROP 3 8’-0” MAX. 5’-0” 2 MAX. WALL NEAREST SDG&E WALL NEAREST SERVICE POLE SDG&E SERVICE POLE DETAIL 1 DETAIL 2 SEE TABLE 1 SEE TABLE 1 F 0-300V SERVICE DROP 4 12’-0” MAX. 6” DIRECTION OF PULL 4” 4 II WOOD RISER DETAIL 1 5 PLAN VIEW SEE TABLE 1 B WALL NEAREST SDG&E SERVICE POLE DETAIL 3 SEE TABLE 1 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/02/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG106.2 2 OF 4 OVERHEAD SERVICE ATTACHMENT FOR SOLID WOOD RISERS

TABLE 1: OVERHEAD SERVICE ATTACHMENT ITEM DESCRIPTIONS ITEM DESCRIPTION 1 BOLT AND WASHER, 1/2”, (QTY 2) 2 RISER, SOLID WOOD, 4'' X 4'' (PRESSURE TREATED) 3 RISER, SOLID WOOD, 4'' X 6'' (PRESSURE TREATED) 4 RISER, SOLID WOOD, 6'' X 6'' (PRESSURE TREATED) 5 BOLTS, 1/2'' DIA. OR LAG SCREWS 6 SERVICE CAP 4” X 4” 7 RISER, SOLID WOOD, PRESSURE TREATED 4” X 6” 4” X 4” 8 RISER, SOLID WOOD, PRESSURE TREATED 4” X 6” 6” X 6" 9 SERVICE KNOB 10 E.M.T., I.M.T. OR SCH 40 PVC 11 FLASHING 12 PLATES 13 STRAPS, ON PLATES 14 SOCKET BOX, METER, FLUSH TYPE 15 METER 16 SCREW, LAG, 1/4'' X 4'' 17 RISER, WOOD 18 BOLT, MACH., 1/2'' DIA. 19 2'' X 4'' 20 SOCKET BOX, METER, SURFACE MOUNTED TYPE INSTALLATION: A BOLT HEAD TO BE RECESSED IN 2 X 4. BOLT 2 X 4 TO WOOD RISER BEFORE INSTALLING. B SERVICE DROP ATTACHMENT SHALL NORMALLY BE LOCATED ON THE WALL FACING AND NEAREST THE UTILITY’S POLE LINE. c C. WOOD RISERS SHALL NOT BE SPLICED OR OF LAMINATED CONSTRUCTION, 2 X 4’S, 2 X 6’S, ETC. NAILED OR BOLTED TOGETHER RISERS ARE NOT ACCEPTABLE. D.

BUCKET TRUCK ACCESS IS REQUIRED IF THE DISTANCE FROM LADDER TO WEATHERHEAD AND POINT OF ATTACHMENT EXCEEDS 24 INCHES. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/02/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG106.3 3 OF 4 OVERHEAD SERVICE ATTACHMENT FOR SOLID WOOD RISERS

INSTALLATION (CONT’D): E. ONLY THE UTILITY’S SERVICE DROP CONDUCTORS SHALL BE PERMITTED TO BE ATTACHED TO THE SOLID WOOD RISER STRUCTURE. THIS IS A UTILITY AND CALIFORNIA ELECTRICAL CODE REQUIREMENT. F SERVICE KNOBS TO BE INSTALLED ON 4-INCH FACE OF TIMBER ONLY. G SECURE RISER TO STUD. BILL OF MATERIALS: NONE NOTES: I SDG&E (UTILITY) WILL NOT BE RESPONSIBLE FOR ANY DAMAGE TO THE BUILDING CAUSED BY RAIN OR STRUCTURAL FAILURE. II WOOD RISER TO EXTEND TO TOP OF FOUNDATION. III FURNISHED AND INSTALLED BY SDG&E REFERENCE: a. SEE OH641. b. FOR SERVICE DROP CLEARANCES, SEE SG107. c FOR EXCEPTIONS TO OBTAIN SERVICE DROP CLEARANCES ON RESIDENTIAL BUILDINGS OR STRUCTURES, SEE SG103. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/02/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG106.4 4 OF 4 OVERHEAD SERVICE ATTACHMENT FOR SOLID WOOD RISERS

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR 0-600V SERVICE DROP CONDUCTOR CLEARANCES. ATTENTION: * THE VERTICAL, HORIZONTAL AND RADIAL SERVICE DROP CONDUCTOR (INCLUDING THE DRIP LOOP) CLEARANCES TABULATED AND ILLUSTRATED THROUGHOUT THIS MANUAL ARE MINIMUM REQUIREMENTS OF STATE, COUNTY OR MUNICIPAL CODES, LAWS AND ORDINANCES. DEVIATION FROM THESE MINIMUM CLEARANCE REQUIREMENTS CANNOT BE GRANTED BY SDG&E (UTILITY). ** THE UTILITY PRIMARILY USES INSULATED ABRASION-RESISTANT SELF-SUPPORTING CABLE (SSC) FOR SERVICE DROP CONDUCTORS. HOWEVER, THE UTILITY USED TO INSTALL OPEN-WIRE WEATHERPROOF (WP) UNINSULATED SERVICE DROP CONDUCTORS. THE OLDER WP SERVICE DROPS STILL EXIST, THOUGH THEY ARE NOT COMMON. *** THE USE OF OPEN-WIRE SERVICE DROP CONDUCTORS IN COMMERCIAL/INDUSTRIAL APPLICATIONS MAY OCCUR TODAY WHEN THE ESTIMATED LOAD REQUIRES A HIGHER AMPACITY RATING FOR THE SERVICE DROP CONDUCTORS THAT ARE ONLY AVAILABLE IN OPEN-WIRE CONDUCTOR SIZES. THE ABBREVIATIONS SSC AND WP ARE COMMONLY USED THROUGHOUT THIS SECTION. 1’-0” MIN. 8’-0” MIN. (WP) 2’-0” MIN. (SSC) I VI G1 1’-0” MIN. 1’-6” MAX.

WALL FACING POLE LINE 4’-0” MAX. c FIGURE 1 FIGURE 2 CLEARANCE ABOVE RESIDENTIAL, REDUCED 0-300V WP SERVICE DROP COMMERCIAL, OR INDUSTRIAL CLEARANCE ABOVE A RESIDENTIAL BUILDINGS ON PREMISES SERVED ROOF OR EAVE ON THE BUILDING OTHER THAN THE BUILDING SERVED SERVED © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FIGURE UPDATE EDM IWA JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG107.1 1 OF 12 SERVICE DROP CONDUCTOR CLEARANCES 0-600V

1’-0” MIN. 1’-0” MIN. 1’-6” 1’-0” MAX. MIN. WALL FACING WALL FACING POLE LINE 1’-0” MIN. POLE LINE 1’-0” 1’-0” MAX. MAX. EXAMPLE 1 EXAMPLE 2 1’-0” MIN. SSC SERVICE 1’-0” MIN. DROP 1’-0” MIN. 4’-0” MAX. WALL FACING 1’-6” POLE LINE MAX. EXAMPLE 3 II FIGURE 3 EXCEPTIONS FOR REDUCED CLEARANCE ABOVE G2 XIV COMMERCIAL AND INDUSTRIAL BUILDINGS © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FIGURE UPDATE EDM IWA JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG107.2 2 OF 12 SERVICE DROP CONDUCTOR CLEARANCES 0-600V

1’-0” MIN. 1’-0” MIN. 1’-0” MIN. 1’-0” MIN. 1’-6” MAX. 1’-6” MAX. WALL FACING POLE LINE 1’-0” MAX. EXAMPLE 4 1’-0” MIN. 1’-0” MIN. III 1’-6” MIN. MAIN BUILDING WALL (FIRE WALL) FACING WITH OR WITHOUT POLE LINE COLUMN OR SUPPORT (NOT PART OF BLDG) EXAMPLE 5 FIGURE 3 (CONT’D) EXCEPTIONS FOR REDUCED CLEARANCE ABOVE G2 XIV COMMERCIAL AND INDUSTRIAL BUILDINGS © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FIGURE UPDATE EDM IWA JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG107.3 3 OF 12 SERVICE DROP CONDUCTOR CLEARANCES 0-600V

Y Y Y Y Y 3’-0” 3’-0” 3’-0” Y Z Z Y Y 3’-0” Z 3’-0” OPENING OPENING 3’-0” 3’-0” 3’-0” 3’-0” 3’-0” 3’-0” 3’-0” 3’-0” EXAMPLE 1 EXAMPLE 1 EXAMPLE 2 EXAMPLE 2 SIDE VIEW FRONT VIEW FRONT VIEW SIDE VIEW FIGURE 4 SERVICE DROP CONDUCTOR CLEARANCES, 0-600V, FROM DOORS, EXITS, WINDOWS, FIRE ESCAPES, BALCONIES, ETC. II V VII SEE TABLE 1 TABLE 1 VERTICAL, HORIZONTAL, AND RADIAL SERVICE DROP CONDUCTOR (INCLUDING THE DRIP LOOP) CLEARANCES MINIMUM CLEARANCE CONDITION Z (FT) Y (FT) VERTICALLY ABOVE WALKABLE SURFACES OF FIRE ESCAPES, BALCONIES, STAIRWAYS 8 -- AND WALKWAYS HORIZONTALLY AND RADIALLY FROM FIRE ESCAPES, EXITS, OPENABLE WINDOWS, -- 3 DOORS, AND OTHER POINTS AT WHICH HUMAN CONTACT MIGHT BE EXPECTED © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FIGURE UPDATE EDM IWA JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

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RESIDENTIAL PREMISES BUILDING AREA ACCESSIBLE TO XI IX PEDESTRIANS ONLY SERVICE DROP 16’-0” N 12’-0” MIN. MIN. N 12’-0” MIN. PRIVATE DRIVEWAY STREET OR 18’-0” ROADWAY MIN. 12’-0” MIN. FIGURE 5 RESIDENTIAL PREMISES MINIMUM CLEARANCES REQUIRED FOR SERVICE DROP CONDUCTORS OVER THOROUGHFARES, F FROM BUILDINGS, AT POINT OF ATTACHMENT TO BUILDING, AND CROSS REFERENCE PAGES © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FIGURE UPDATE EDM IWA JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG107.5 5 OF 12 SERVICE DROP CONDUCTOR CLEARANCES 0-600V

COMMUNICATIONS COMMERCIAL OR INDUSTRIAL SERVICE DROP PREMISES BUILDING N 12’-0” MIN. 3’-0” RADIUS SERVICE DROP 16’-0” XII VIII 16’-0” MIN. 18’-0” MIN. MIN. 18’-0” OPENABLE WINDOW MIN. 12’-0” AREA ACCESSIBLE TO PEDESTRIANS ONLY STREET OR ROADWAY CENTERLINE PRIVATE DRIVEWAY EXAMPLE 1 COMMERCIAL OR INDUSTRIAL PREMISES BUILDING O 1’-6” MAX. DRIP LOOP 3’-0” MAX. 3’-0” MIN. RADIALLY SERVICE DROP IX XIII SEE EXAMPLE 1 FOR CLEARANCES ABOVE STREET LOADING DOCK DOOR STREET OR ALLEY COMMUNICATION 16’-0” MIN. 12’-0” MIN. N SERVICE DROP CROSSING EXAMPLE 2 FIGURE 6 COMMERCIAL OR INDUSTRIAL PREMISES MINIMUM CLEARANCES REQUIRED FOR SERVICE DROP CONDUCTORS OVER THOROUGHFARES, F FROM BUILDINGS, AT POINT OF ATTACHMENT TO BUILDING, AND CROSS REFERENCE PAGES © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FIGURE UPDATE EDM IWA JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

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750-300KV SUPPLY CONDUCTORS 0-750V SUPPLY CONDUCTORS 12’-0” MIN. 0-20KV GROUNDED CABLE 0-750V SERVICE DROPS j 8’-0” MIN. 3 1 750V OR MORE SUPPLY CONDUCTORS P 6’-0” MIN. 0-750V SUPPLY CONDUCTORS 0-750V SERVICE DROPS j R 2 3’-0” MIN. 0-20KV GROUNDED CABLE Q EXAMPLE 1 BUILDINGS, BRIDGES, AND OTHER STRUCTURES 3 VERTICAL CLEARANCES ABOVE GROUND, WALKWAYS, ETC. SHALL BE MAINTAINED 0-750V SUPPLY CONDUCTORS 0-750V SERVICE DROPS 3’-0” MIN. 0-20KV GROUNDED CABLE Q 750V-300KV SUPPLY CONDUCTORS P 6’-0” MIN. EXAMPLE 2 UNDER OR THRU BRIDGES, VIADUCTS OR SIMILAR STRUCTURES FIGURE 7 HORIZONTAL AND VERTICAL CLEARANCES OF SUPPLY AND SERVICE DROP g h CONDUCTORS FROM BUILDINGS, BRIDGES, AND OTHER STRUCTURES SEE TABLE 2 TABLE 2 APPURTENANCE LIST ITEM DESCRIPTION 1 WALKABLE SURFACE 2 NEAREST PROJECTING SURFACE R 3 CLEARANCE ZONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FIGURE UPDATE EDM IWA JTM KRG 01/02/2025 F

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INSTALLATION: A. WEATHER AND TIME ADVERSELY AFFECT SERVICE DROP CONDUCTORS AND THE SERVICE SUPPORT, RESULTING IN ULTIMATE SERVICE DROP CONDUCTOR SAG GREATER THAN THE INITIAL SAG OBTAINED AT THE TIME OF INSTALLATION. ACCORDINGLY, WHEN SELECTING A POINT OF ATTACHMENT METHOD PROVIDE A HEIGHT THAT WILL PERMIT THE SERVICE DROP CONDUCTORS TO BE MAINTAINED IN COMPLIANCE WITH APPLICABLE CLEARANCE REQUIREMENTS FOR THE ULTIMATE SAG. B. A SERVICE DROP SUPPORT RISER OR RACK SHALL NOT BE LOCATED MORE THAN 18 INCHES BACK FROM THE FRONT FACE OF THE BUILDING WALL FACING THE UTILITY'S POLE LINE, EXCEPT AS PERMITTED FOR RESIDENTIAL BUILDINGS. C. SERVICE SUPPORT INSULATORS OR BRACKET SHALL NOT BE INSTALLED ON THE TOP OF ANY CORNICE, APPENDAGE, EAVE, ROOF OR PARAPET WALL OF A BUILDING, EXCEPT AS ALLOWED ON SG104. d D. WHERE NON-INSULATED (WP) OPEN WIRE SERVICE DROP CONDUCTORS APPROACH A BUILDING WALL AT ANY ANGLE OF LESS THAN 60 DEGREES, THE SPACING OF THE INSULATORS IN HORIZONTAL CONFIGURATION AT THE POINT OF ATTACHMENT SHALL BE INCREASED TO PROVIDE AT LEAST 8 INCHES CONDUCTOR SEPARATION.

VERTICAL CONFIGURATION IS PREFERABLE WHERE THE ANGLE BETWEEN THE SERVICE DROP AND THE WALL IS LESS THAN 60 DEGREES AND IS ACCEPTABLE FOR ANY ANGLE. E. SERVICE DROPS SHOULD BE ARRANGED SO AS NOT TO HINDER OR ENDANGER WORKERS AND FIREFIGHTERS WHILE PERFORMING THEIR DUTIES. F CLEARANCES ABOVE GROUND, THOROUGHFARES, DRIVEWAYS, AND PUBLIC/PRIVATE PROPERTY: VERTICAL CLEARANCES ABOVE GROUND FOR SERVICE DROP CONDUCTORS CROSSING OVER PUBLIC OR PRIVATE THOROUGHFARES, DRIVEWAYS, AND PROPERTIES SHALL BE NOT LESS THAN THOSE SPECIFIED IN TABLE 3. THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) MAY IN SOME INSTANCES REQUIRE GREATER CLEARANCES THAN THOSE SHOWN. i TABLE 3 VERTICAL CLEARANCES ABOVE GROUND FOR SERVICE DROP CONDUCTORS MINIMUM CONDITION VERTICAL CLEARANCE (FT) CROSSING RAILROAD TRACKS 25 CROSSING PUBLIC THOROUGHFARES 18 (PUBLIC OR PRIVATELY OWNED ROADWAYS MAINTAINED BY A PUBLIC AGENCY, I.E. COUNTY SERVICE AREA) EXCEPTION: THIS CLEARANCE MAY BE REDUCED FROM 18 FEET AT A POSITION NOT MORE THAN 12 FEET HORIZONTALLY FROM THE CURB LINE TO A CLEARANCE AT THE CURB LINE OF NOT LESS THAN 16

(WHERE NO CURB EXISTS, THE OUTER LIMITS OF POSSIBLE VEHICULAR MOVEMENT SHALL BE USED IN LIEU OF A CURB LINE) CROSSING PRIVATE DRIVEWAYS, LANES, OR OTHER PRIVATE PROPERTY AREAS ACCESSIBLE TO VEHICLES ON COMMERCIAL OR INDUSTRIAL PREMISES 16 (INCLUDES PRIVATELY-OWNED ROADWAYS NOT MAINTAINED BY A PUBLIC AGENCY) CROSSING PREMISES ACCESSIBLE TO AGRICULTURAL EQUIPMENT 15 CROSSING PRIVATE DRIVEWAYS, LANES, OR OTHER AREAS ACCESSIBLE TO VEHICLES ON RESIDENTIAL PREMISES 12 EXCEPTION: THIS CLEARANCE MAY BE REDUCED FOR INSULATED SERVICES (SSC) TO NOT LESS THAN 10 CROSSING AREAS ON RESIDENTIAL, COMMERCIAL OR INDUSTRIAL PREMISES THAT ARE ACCESSIBLE ONLY TO PEDESTRIANS 12 EXCEPTION: THIS CLEARANCE MAY BE REDUCED FOR INSULATED SERVICES (SSC) TO NOT LESS THAN 10 CROSSING OVER OR IN PROXIMITY TO SWIMMING POOLS AND/OR RELATED DIVING BOARDS, DIVING PLATFORMS, SLIDES, a ETC. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE

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INSTALLATION (CONT’D): G CLEARANCES OVER BUILDINGS AND STRUCTURES: 0–600V SERVICE DROP CONDUCTORS SHALL BE MAINTAINED AT A VERTICAL CLEARANCE OF NOT LESS THAN 8 FEET IF WP, OR 2 FEET IF SSC, ABOVE ANY PORTION OF A METALLIC OR NON-METALLIC RESIDENTIAL, COMMERCIAL OR INDUSTRIAL BUILDING OR STRUCTURE, INCLUDING ANY OTHER BUILDING OR STRUCTURE ON THE PREMISES EXCEPT THAT 0–300V SERVICE DROP CONDUCTORS MAY BE REDUCED IN ACCORDANCE WITH THE FOLLOWING: 1 EXCEPTION FOR WP REDUCED CLEARANCE ABOVE RESIDENTIAL BUILDING SERVED (SEE TABLE 6): 0–300V WP SERVICE DROP CONDUCTORS MAY BE LESS THAN 8 FEET, BUT SHALL BE MAINTAINED AT A CLEARANCE OF NOT LESS THAN 12 INCHES ABOVE A METALLIC OR NON-METALLIC RESIDENTIAL ROOF OR EAVE OF THE BUILDING SERVED, PROVIDED: • THE SERVICE DROP CONDUCTORS ARE SUPPORTED ON A RISER OR RACK LOCATED NOT MORE THAN 18 INCHES BACK FROM THE WALL FACING THE UTILITY'S POLE LINE, AND • THE POINT OF SERVICE SUPPORT IS LOCATED NOT MORE THAN 4 FEET BACK FROM THE OUTER EDGE OF THE ROOF EAVES EXTENDING BEYOND THE WALL FACING THE UTILITY'S POLE LINE.

2 EXCEPTION FOR REDUCED CLEARANCE ABOVE COMMERCIAL AND INDUSTRIAL BUILDINGS: SERVICE DROP CONDUCTORS MAY BE LESS THAN 8 FEET, BUT NOT LESS THAN 1 FOOT ABOVE A METALLIC OR NON-METALLIC ROOF, EAVE, PARAPET WALL, CORNICE, OR DECORATIVE APPENDAGE OF THE BUILDING SERVED PROVIDED: • ANY CORNICE OR DECORATIVE APPENDAGE DOES NOT EXTEND MORE THAN 1 FOOT FROM THE FRONT FACE OF THE BUILDING WALL FACING THE UTILITY’S POLE LINE, AND • THE POINT OF ATTACHMENT OF THE SERVICE DROP IS NOT MORE THAN 18 INCHES BACK FROM THE FRONT FACE OF THE BUILDING WALL FACING THE UTILITY’S POLE LINE, AND • THE SERVICE DROP CONDUCTORS ARE INSULATED (SSC) FOR THE VOLTAGE BEING SUPPLIED. H. CLEARANCES FROM OTHER CONDUCTORS: THE VERTICAL CLEARANCE OF SERVICE DROP CONDUCTORS FROM OTHER CONDUCTORS AT CROSSINGS AND RADIALLY WHERE APPROACHING CROSSINGS SHALL NOT BE LESS THAN THE MINIMUM CLEARANCES SPECIFIED: TABLE 4 VERTICAL CLEARANCES OF SERVICE DROP CONDUCTORS FROM OTHER CONDUCTORS MINIMUM CONDITION VERTICAL CLEARANCE (FT) BELOW TELEPHONE CABLE SUPPORTED ON A MESSENGER 4 BELOW OPEN-WIRE TELEPHONE AND FIRE ALARM 2

ABOVE TELEPHONE CABLE, OPEN-WIRE TELEPHONE AND FIRE ALARM CONDUCTORS 2 RADIAL FROM TELEPHONE SERVICE DROPS 2 EXCEPT WHERE WITHIN 15’ OF THE POINT OF ATTACHMENT ON A BUILDING THIS CLEARANCE MAY BE REDUCED TO 1 FROM OTHER ELECTRIC SERVICE DROPS 2 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FIGURE UPDATE EDM IWA JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG107.9 9 OF 12 SERVICE DROP CONDUCTOR CLEARANCES 0-600V

J. CLEARANCES FROM SIGNS: THE VERTICAL AND HORIZONTAL SERVICE DROP CONDUCTOR CLEARANCE FROM SIGNS, WHETHER MOUNTED ON A BUILDING, ISOLATED STRUCTURES, OR OTHERWISE CONSTRUCTED, SHALL NOT BE LESS THAN THE MINIMUM CLEARANCES SPECIFIED: TABLE 5 CLEARANCES OF SERVICE DROP CONDUCTORS FROM SIGNS MINIMUM CONDITION CLEARANCE IV (FT) VERTICAL CLEARANCE ABOVE SIGNS UPON WHICH A PERSON CAN WALK 8 VERTICAL CLEARANCE ABOVE SIGNS UPON WHICH A PERSON CANNOT WALK 2 VERTICAL CLEARANCE UNDER SIGNS WHICH ARE ILLUMINATED 2 VERTICAL CLEARANCE UNDER SIGNS WHICH ARE NON-ILLUMINATED 1 HORIZONTAL CLEARANCE FROM SIGNS WHICH ARE ILLUMINATED 3 HORIZONTAL CLEARANCE FROM SIGNS WHICH ARE NON-ILLUMINATED 1 K CLEARANCES FROM BUILDINGS AND STRUCTURES, RESIDENTIAL, COMMERCIAL/INDUSTRIAL PREMISES: TABLE 6 G.O. 95 TABLE 10: MINIMUM ALLOWABLE CLEARANCE OF SERVICE DROPS OF 0-750V FROM BUILDINGS G1 V1II MINIMUM CLEARANCE FROM BUILDINGS (FT) INSULATED WEATHER RESISTANT CONDUCTORS COVERED CONDUCTORS (RULE 20.8-G) 0-750V 0-750V VERTICAL CLEARANCE ABOVE:

1) ALL PORTIONS OF BUILDINGS INCLUDING METALLIC OR NON-METALLIC CORNICE, DECORATIVE APPENDAGE, EAVES, ROOF OR PARAPET WALL OF THE BUILDING SERVED. K1 K2 2) METALLIC OR NON-METALLIC NON-WALKABLE OVERHANG, PATIO COVER, OR OTHER STRUCTURE. 8 3) OTHER BUILDINGS ON THE SAME PREMISES. 2 L 4) BUILDINGS ON OTHER PREMISES. K3 M HORIZONTAL AND RADIAL CLEARANCES: 1) FROM FIRE ESCAPES, EXITS, WINDOWS AND DOORS. 3 3 1 NO LIMIT IS SPECIFIED BUT THE GREATEST PRACTICABLE CLEARANCE SHOULD BE OBTAINED. SDG&E MINIMUM REQUIREMENT IS 1 FOOT. 2 THE POINT OF ATTACHMENT OF THE SERVICE DROP FOR INDUSTRIAL AND COMMERCIAL PREMISES IS NOT TO BE MORE THAN 18 INCHES BACK OF THE FRONT FACE OF THE BUILDING WALL FACING THE POLE LINE FROM WHICH THE SERVICE DROP ORIGINATES. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FIGURE UPDATE EDM IWA JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

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INSTALLATION (CONT’D): K CLEARANCES FROM BUILDINGS AND STRUCTURES, RESIDENTIAL, COMMERCIAL/INDUSTRIAL PREMISES (CONT’D): 3 REDUCE TO 2 FEET FOR NON-METALLIC ROOFS, MORE THAN 3/8 PITCH (APPROXIMATELY 37 DEGREES FROM HORIZONTAL). RUN=12” MIN. RISE=9” MIN. FIGURE 8 K3 L THE AHJ MAY ENFORCE THE MORE RESTRICTIVE CALIFORNIA ELECTRICAL CODE REQUIREMENT OF 8 FEET MINIMUM CLEARANCE, OR 3 FEET MINIMUM CLEARANCE WHEN THE VOLTAGE BETWEEN CONDUCTORS DOES NOT EXCEED 300V AND THE ROOF HAS A SLOPE OF NOT LESS THAN 4 INCHES IN 12 INCHES. IT IS THE CUSTOMER’S RESPONSIBILITY TO VERIFY THE LOCAL AHJ’S REQUIREMENTS BEFORE START OF CONSTRUCTION. M NON-WALKABLE DEFINITION – THOSE SURFACES NOT NORMALLY INTENDED TO SUPPORT HUMANS, SUCH AS BUT NOT LIMITED TO: HANDRAILS, FENCES, WALLS, CHIMNEYS, PARAPET WALLS, CORNICES, ALUMINUM OR LATH PATIO COVERS AND DECORATIVE APPENDAGES OR OTHER LIGHT WEIGHT MATERIAL USED FOR PATIO COVERS. HOWEVER, SUCH SURFACES, WHEN USED FOR A DUAL PURPOSE AS IN THE CASE OF A WIDE SURFACE USED AS A PLATFORM TO WORK ON LIGHTS, SIGNS, ETC., MUST BE

CONSIDERED AS A SURFACE THAT A PERSON MIGHT NORMALLY WALK UPON. ALL CLEARANCES OF THIS TYPE MUST BE MEASURED FROM THE WALKABLE SURFACE. N CLEARANCE MAY BE REDUCED FOR INSULATED SERVICES (SSC) TO NOT LESS THAN 10 FEET. CLEARANCE IS MEASURED FROM THE LOWEST POINT, WHICH INCLUDES THE DRIP LOOP, TO FINISHED GRADE. O THE POINT OF SERVICE DROP ATTACHMENT ON ANY RISER SHALL IN NO CASE BE MORE THAN 18 INCHES BACK OF THE FRONT FACE OF THE WALL FACING THE POLE LINE TO WHICH THE SERVICE DROP ORIGINATES, EXCEPT AS PERMITTED ON SG103. c P HORIZONTAL CLEARANCE OF 750–7,500V CONDUCTORS FROM BUILDING WALLS MAY BE REDUCED TO 4 FEET WHERE CONDUCTORS ARE IN EXCESS OF 35 FEET ABOVE GROUND. REDUCED CLEARANCE DOES NOT APPLY TO BRIDGES, FIRE ESCAPES, WINDOWS, BALCONIES, OR STRUCTURES WHERE HUMAN CONTACT MAY BE EXPECTED. Q NO LIMIT REQUIRED BUT THE GREATEST PRACTICABLE CLEARANCE SHOULD BE MAINTAINED. PROVIDE MECHANICAL (PHYSICAL) CLEARANCE FOR CABLE PROTECTION. R INCLUDES CORNICES, BALCONIES, EXITS, FIRE ESCAPES, BAY WINDOWS, CATWALKS, ETC. BILL OF MATERIALS: NONE NOTES:

I ONLY IF THIS BUILDING IS ON THE PREMISES SERVED II NO SUPPLY SERVICE WIRES PERMITTED WITHIN SHADED ZONE. III A WALKABLE MARQUEE, BUILDING PROJECTION, CANOPY, ROOF SECTION, OR EAVES EXTENDED FROM A BUILDING WALL TO FORM A SHELTER OVER A WALKWAY, DRIVEWAY, PASSENGER LOADING AREA, ETC., OUTSIDE THE BUILDING FIRE WALL REQUIRES 8 FEET MINIMUM CLEARANCE. IF NON-WALKABLE, MAY REDUCE TO 2 FEET PROVIDED SERVICE DROP IS INSULATED (SSC). © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FIGURE UPDATE EDM IWA JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG107.11 11 OF 12 SERVICE DROP CONDUCTOR CLEARANCES 0-600V

NOTES (CONT’D): IV THESE CLEARANCES DO NOT APPLY TO SERVICE DROP CONDUCTORS WHICH ARE ATTACHED TO SIGNS FOR THE PURPOSE OF SERVING SUCH SIGN. ALL CLEARANCES OF MORE THAN 6 INCHES SHALL BE APPLICABLE FROM THE CENTERLINE OF THE CONDUCTORS CONCERNED. LESSER CLEARANCES SHALL BE APPLICABLE FROM THE CONDUCTOR SURFACE. f V SERVICE DROP CONDUCTORS ARE NOT PERMITTED WITHIN SHADED ZONES. VI CLEARANCE REQUIREMENT FOR RESIDENTIAL, COMMERCIAL, OR INDUSTRIAL 0-600V SERVICE DROPS ABOVE BUILDINGS OTHER THAN SERVED G VII THE PORCH RAIL ILLUSTRATED IS NOT CONSIDERED A WALKABLE SURFACE. THE CLEARANCE WILL BE MEASURED FROM THE PORCH DECK. VIII CLEARANCE REQUIREMENTS FOR NON-WALKABLE SURFACES ARE 2 FEET, AND FOR WALKABLE SURFACES ARE 8 FEET. SEE TABLE 6 FOR WALKABLE SURFACE CLEARANCES AND DEFINITION OF “NON-WALKABLE”. M IX HORIZONTAL ANGLE SERVICE MAKES WITH BUILDING MUST NOT BE LESS THAN 30 DEGREES. XI 3-FOOT MINIMUM RADIAL CLEARANCE ABOVE OPENABLE WINDOWS (SEE SHEET 4) XII 24 INCHES MINIMUM RADIALLY WHERE MORE THAN 15 FEET FROM POINT OF ATTACHMENT OF EITHER SERVICE

XIII 12 INCHES MINIMUM RADIALLY WHERE 15 FEET OR LESS FROM POINT OF ATTACHMENT OF EITHER SERVICE XIV BUCKET TRUCK ACCESS IS REQUIRED IF THE DISTANCE FROM A LADDER TO THE WEATHERHEAD AND POINT OF ATTACHMENT EXCEEDS 24 INCHES. REFERENCE: a SEE SG108. b. SEE OH220 AND OH225. c FOR RESIDENTIAL, COMMERCIAL, OR INDUSTRIAL SERVICE DROPS, SEE SG103. d SEE SG104. e. FOR RADIAL CLEARANCES FROM OTHER CONDUCTORS, SEE OH225. f FOR MINIMUM CLEARANCES OF WIRES (0–750V SERVICE DROPS AND 750V–300KV SUPPLY CONDUCTORS AND CABLES) TO ILLUMINATED AND NON-ILLUMINATED SIGNS, SEE OH229. g FOR SIGNAGE REQUIREMENTS ON BRIDGES, VIADUCTS, ETC., WHEN ATTACHING CONDUCTORS 750-22,500V BENEATH OR THROUGH SAME, SEE G.O. 95 RULE 54.4I. h SEE G.O. 95, TABLE 1, CASES 6 AND 7 AND RULE 54.4H. i SEE CPUC GENERAL ORDER 95. j FOR 0-300V SERVICE DROP CLEARANCES, SEE OH262. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FIGURE UPDATE EDM IWA JTM KRG 01/02/2025 F

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SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR OVERHEAD ELECTRIC CLEARANCES OVER SWIMMING POOLS. DEFINITIONS: • THE STATE OF CALIFORNIA GENERAL ORDER 95 DEFINES SWIMMING POOL AS “THAT PORTION OF ANY NATURAL OR ARTIFICIALLY CONTAINED BODY OF WATER WHICH IS 24 INCHES OR MORE IN DEPTH AT ANY POINT BELOW THE HIGHEST WATER LEVEL, WHICH IS INTENDED FOR USE FOR SWIMMING, BATHING OR OTHER SIMILAR RECREATIONAL PURPOSES, AND WHICH HAS A SURFACE AREA EXCEEDING 100 SQUARE FEET.” b EDGE OF POOL DIVING BOARD Y OVER WATER SURFACE NOT OVER WATER SURFACE Y Y Y Y Y Y Y Y Y Y Y Y Z Z Z Z HIGHEST WATER LEVEL FIGURE 1 SEE TABLE 1 TABLE 1 CLEARANCES OVER SWIMMING POOLS Z Y MINIMUM VERTICAL AND RADIAL CLEARANCES OVER SWIMMING POOLS III IV MINIMUM MINIMUM VERTICAL RADIAL (FT) (FT) UNPROTECTED LINE CONDUCTORS (VERTICAL OVER HIGHEST WATER LEVEL AND RADIAL FROM TOP EDGE OF POOL WALLS) 1. 0-750V 20 20 2. 750-22,500V 25 25 3. 22.5-300KV 30 30 SERVICE DROPS (VERTICAL OVER HIGHEST WATER LEVEL AND RADIAL FROM TOP EDGE OF POOL WALLS) 4. POOLS PUBLIC AND COMMERCIAL 16 16 5. POOLS RESIDENTIAL 12 12

SERVICE DROPS (OVER DIVING BOARDS OR PLATFORMS) 6. PORTION OF BOARD OR PLATFORM THAT IS OVER WATER SURFACE 16 8 7. PORTION OF BOARD OR PLATFORM THAT IS NOT OVER WATER SURFACE 12 3 © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG108.1 1 OF 2 OVERHEAD ELECTRIC CLEARANCES OVER SWIMMING POOLS

TABLE 1 (CONT’D) CLEARANCES OVER SWIMMING POOLS Z Y MINIMUM VERTICAL AND RADIAL CLEARANCES OVER SWIMMING POOLS III IV MINIMUM MINIMUM VERTICAL RADIAL (FT) (FT) GUYS (UNGROUNDED PORTIONS) 8. OVER HIGHEST WATER LEVEL AND FROM TOP EDGE OF POOL WALLS 18 18 9. OVER DIVING BOARD OR PLATFORM (THE PORTION THAT IS OVER THE WATER SURFACE) 18 8 10. OVER DIVING BOARD OR PLATFORM (THE PORTION THAT IS NOT OVER THE WATER SURFACE) 12 6 GUYS (GROUNDED PORTIONS) 11. OVER THE HIGHEST WATER LEVEL 16 - 12. OVER DIVING BOARD OR PLATFORM (THE PORTION THAT IS OVER THE WATER SURFACE) 16 8 13. OVER DIVING BOARD OR PLATFORM (THE PORTION THAT IS NOT OVER THE WATER SURFACE) 8 3 INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. CONTACT SDG&E (UTILITY) TO OBTAIN AN ACCEPTABLE POINT OF SERVICE DROP ATTACHMENT WHENEVER A SWIMMING POOL IS PROPOSED TO BE CONSTRUCTED IN AN AREA BETWEEN THE UTILITY'S POLE LINE AND THE BUILDING TO BE SERVED, OR A SWIMMING POOL HAS BEEN CONSTRUCTED CREATING A G.O. 95 OVERHEAD ELECTRIC CLEARANCE INFRACTION. II.

INSTALLATION of 0–600V SERVICE DROP CONDUCTORS ABOVE A PUBLIC OR PRIVATE SWIMMING POOL AND ADJACENT RECREATIONAL AREA SHALL BE AVOIDED. SERVICE CONDUCTORS SHALL BE ROUTED AROUND THESE AREAS AT A HORIZONTAL CLEARANCE SUFFICIENT TO PROVIDE FOR HUMAN SAFETY, AND TO AVOID CONTAMINATION AND NUISANCE CAUSED BY "DROPPINGS" FROM BIRDS RESTING ON CONDUCTORS. SUFFICIENT HORIZONTAL CLEARANCE IS DEFINED AS A CLEARANCE DIMENSION AS CONDITIONS WARRANT TO PREVENT PERSONS IN THE POOL AREA FROM COMING INTO ACCIDENTAL CONTACT WITH SERVICE CONDUCTORS, OR BRINGING CONDUCTING MATERIALS INTO CONTACT WITH SERVICE CONDUCTORS BY USE OF POOL CLEANING OR MAINTENANCE EQUIPMENT. III SWIMMING POOLS SHALL NOT BE PLACED UNDER EXISTING OVERHEAD CONDUCTORS, INCLUDING SERVICE DROPS AND ANY OTHER OPEN OVERHEAD WIRING, UNLESS THE UTILITY DETERMINES ANY NECESSARY EASEMENTS HAVE BEEN GRANTED TO THE UTILITY, AND ALL MINIMUM CLEARANCES ARE MET. IV WHERE IT IS NOT PRACTICABLE TO CLEAR A SWIMMING POOL AND RECREATIONAL AREA AT A HORIZONTAL CLEARANCE AS

SPECIFIED, SERVICE DROP CONDUCTORS SHALL BE MAINTAINED AT A RADIAL AND VERTICAL CLEARANCE OF NOT LESS THAN SHOWN. a. PRACTICABLE AS DEFINED BY THE RULES FOR OVERHEAD LINE CONSTRUCTION MEANS CAPABLE OF BEING ACCOMPLISHED BY REASONABLY AVAILABLE AND ECONOMIC MEANS. V. CLEARANCE REQUIREMENTS FOR SPAS, HOT TUBS, ETC. MAY VARY ACCORDING TO THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). MOST AHJS REQUIRE SWIMMING POOL CLEARANCES BE MET OVER ALL OUTDOOR SPAS, REGARDLESS OF SIZE. VI. UNDERGROUND ELECTRIC SERVICE CONDUIT AND GAS SERVICES ARE TO MAINTAIN A MINIMUM 5-FOOT SEPARATION FROM THE OUTSIDE WALL OF SWIMMING POOLS AND SPAS. REFERENCE: a. SEE G.O. 95 RULE 54.4-A3. b SEE G.O. 95 RULE 23.6. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG108.2 2 OF 2 OVERHEAD ELECTRIC CLEARANCES OVER SWIMMING POOLS

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR SERVICE HEADS. ATTENTION: * A SERVICE HEAD OF A TYPE APPROVED BY THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) SHALL BE PROVIDED ON THE SUPPLY END OF EVERY SERVICE RACEWAY TERMINATED ABOVE GROUND FOR AN OVERHEAD SERVICE CONNECTION. 2’-0” MAX. 2’-0” MAX. C POINT OF ATTACHMENT FIGURE 1 B INSTALLATION: A. LOCATION: THE SERVICE HEAD SHALL NORMALLY BE LOCATED ABOVE OR ON THE WALL OF THE BUILDING FACING AND NEAREST THE UTILITY’S POLE LINE. IT MAY BE LOCATED BELOW THE ROOF OF THE BUILDING SERVED UNDER THE CONDITIONS OUTLINED BELOW. A2 IN ANY CASE, IT SHALL BE LOCATED SO THE SERVICE HEAD AND POINT OF CONNECTION TO THE SERVICE DROP CONDUCTORS WILL COMPLY WITH CLEARANCES REQUIRED BY APPLICABLE ELECTRICAL CODES AND ORDINANCES ENFORCED BY THE AHJ, AS WELL AS PROVISIONS SPECIFIED ON OTHER PAGES OF THIS SERVICE STANDARDS & GUIDE AND THE FOLLOWING: 1. THE SERVICE HEAD SHALL BE LOCATED SO THAT ONLY ONE POINT OF ATTACHMENT IS REQUIRED TO SUPPORT THE SERVICE

DROP ON A BUILDING OR STRUCTURE AND SHOULD, WHERE PRACTICABLE, BE AT LEAST ONE FOOT ABOVE THE LEVEL OF THE POINT OF SERVICE DROP SUPPORT. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/02/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG109.1 1 OF 2 SERVICE HEADS

INSTALLATION (CONT’D): 2 WHERE IT IS IMPRACTICAL TO LOCATE THE SERVICE HEAD ABOVE THE POINT OF ATTACHMENT, THE SERVICE HEAD MAY BE LOCATED NOT MORE THAN 24 INCHES RADIALLY FROM THE POINT OF ATTACHMENT. THE SERVICE HEAD SHALL BE LOCATED SO THE LENGTH OF OPEN SERVICE ENTRANCE CONDUCTORS BETWEEN THE SERVICE HEAD AND THE POINT OF CONNECTION OF THE UTILITY'S SERVICE DROP CONDUCTORS (DRIP LOOP) WILL NOT EXCEED 3 FEET. 3. WHERE MORE THAN ONE SERVICE HEAD FOR THE SAME PHASE AND VOLTAGE IS INSTALLED ON A BUILDING OR STRUCTURE, ALL SUCH SERVICE HEADS SHALL BE LOCATED SO THEY MAY BE SERVED THROUGH A SINGLE SERVICE DROP. THE MAXIMUM NUMBER OF SERVICE HEADS PERMITTED IS THREE. SEE INSTALLATION NOTE B FOR MULTIPLE SERVICE HEAD INSTALLATIONS. 4. WHERE SERVICE HEADS FOR DIFFERENT PHASE OR VOLTAGE ARE INSTALLED ON A BUILDING FOR WHICH A SINGLE POINT OF DELIVERY IS ESTABLISHED, SUCH SERVICE HEADS SHALL BE LOCATED AS CLOSE TOGETHER AS PRACTICABLE OR AS OTHERWISE DIRECTED BY THE SDG&E SERVICE PLANNER. 5.

A SERVICE HEAD SHALL NOT BE LOCATED ON ANY WALL OR STRUCTURE WHICH FACES AND IS LESS THAN 3 FEET FROM A COMMON PROPERTY LINE. 6. A RADIAL DISTANCE OF NOT LESS THAN 3 FEET SHALL BE MAINTAINED FROM A SERVICE HEAD, SERVICE ENTRANCE CONDUCTORS AND SERVICE DROP TO ANY OPEN LOAD CONDUCTORS OR YARD LIGHTING. 7. A SERVICE HEAD SHALL NOT BE LOCATED MORE THAN 30 FEET ABOVE GRADE LEVEL MEASURED FROM THE STANDING SURFACE NEAREST SUCH HEAD. B NUMBER OF SERVICE HEADS PERMITTED: MORE THAN ONE SERVICE HEAD MAY BE INSTALLED ON A BUILDING UP TO A MAXIMUM OF THREE PROVIDED THE INSTALLATION CONFORMS TO APPLICABLE ELECTRICAL CODES AND ORDINANCES ENFORCED BY THE AHJ PERTAINING TO THE PERMISSIBLE NUMBER OF SERVICES TO A BUILDING, AND CONFORMS TO ALL METER LOCATION AND ACCESS REQUIREMENTS FOR THEIR LOCATION IN ACCORDANCE WITH THE PROVISIONS OF THE SERVICE STANDARDS & GUIDE. C THE POINT OF ATTACHMENT IS TO BE ON THE CENTER RISER, WHICH IS TO MEET ALL STANDARD REQUIREMENTS FOUND ON SG105. a D. DRIP LOOPS ARE NOT TO EXCEED 3 FEET IN OVERALL CABLE LENGTH PER SERVICE HEAD. b E.

THE UTILITY SERVICE DROP IS NOT TO CROSS OVER MORE THAN 6 FEET OF ROOF TO REACH THE POINT OF ATTACHMENT. c BILL OF MATERIALS: NONE NOTES: I. ACTUAL CONFIGURATION WILL VARY BASED ON SITE CONDITIONS. II. THE BUILDER’S ACTUAL DESIGN AND INSTALLATION ARE SUBJECT TO ALL APPROVALS, PERMITS, AND INSPECTIONS REQUIRED BY THE AHJ. III. ALL PROPOSED METER LOCATIONS FOR THIS APPLICATION REQUIRE UTILITY APPROVAL AND A “METER & SERVICE LOCATION” FORM FROM AN SDG&E SERVICE PLANNER PRIOR TO CONSTRUCTION. REFERENCE: a SEE SG105. b SEE SG112. c SEE SG103. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/02/2023 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG109.2 2 OF 2 SERVICE HEADS

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR BUSWAY SERVICE HEADS. ATTENTION: * BUSWAY TYPE SERVICE ENTRANCE SHALL BE LIMITED TO 600V MAXIMUM AND IS A REQUIREMENT WHEN MORE THAN THREE PARALLELED OVERHEAD SERVICE ENTRANCE CONDUCTORS PER PHASE ARE NECESSARY TO SUPPLY THE LOAD FOR ONE METERING LOCATION. WALL OR NEAREST OBSTRUCTION 6” MIN. 4” MIN. 1’-0” MIN. 8” MIN. 8” MIN. DETAIL 1 CONFIGURATION 1 CONFIGURATION 1 STUBS IN SAME PLACE STUBS IN SAME PLACE END VIEW SIDE VIEW WALL OR NEAREST OBSTRUCTION 6” MIN. 4” MIN. 4” MIN. 1’-0” MIN. 6” MIN. DETAIL 1 6” MIN. CONFIGURATION 2 CONFIGURATION 2 STUBS STAGGERED VERTICALLY STUBS STAGGERED VERTICALLY END VIEW SIDE VIEW WALL OR NEAREST OBSTRUCTION 6” MIN. Z 1 1/4” MIN. DETAIL 1 NOT SPECIFIED CONFIGURATION 3 CONFIGURATION 3 STUBS STAGGERED HORIZONTALLY STUBS STAGGERED HORIZONTALLY END VIEW SIDE VIEW SEE TABLE 1 SEE TABLE 1 FIGURE 1 SINGLE-PHASE, THREE-WIRE SERVICE © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

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6” MIN. 4” MIN. WALL OR NEAREST OBSTRUCTION 1’-0” MIN. 8” MIN. 8” MIN. 8” MIN. DETAIL 2 CONFIGURATION 1 CONFIGURATION 1 STUBS IN SAME PLACE STUBS IN SAME PLACE END VIEW SIDE VIEW WALL OR NEAREST OBSTRUCTION 6” MIN. 4” MIN. 4” MIN. 1’-0” MIN. 6” MIN. 6” MIN. 6” MIN. DETAIL 2 CONFIGURATION 2 CONFIGURATION 2 STUBS STAGGERED VERTICALLY STUBS STAGGERED VERTICALLY END VIEW SIDE VIEW WALL OR NEAREST OBSTRUCTION 6” MIN. Z 1 1/2” MIN. DETAIL 2 NOT SPECIFIED CONFIGURATION 3 CONFIGURATION 3 STUBS STAGGERED HORIZONTALLY STUBS STAGGERED HORIZONTALLY END VIEW SIDE VIEW SEE TABLE 1 SEE TABLE 1 FIGURE 2 THREE-PHASE, FOUR-WIRE, WYE OR DELTA-CONNECTED SERVICE © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG110.2 2 OF 3

1 3/4” 4X Ø9/16” 1 3/8” 4X Ø9/16” 1” 1” 2” 2” 1” 1” 1” 1” DETAIL 1 DETAIL 2 DRILLING DETAILS FOR STUBOUTS DRILLING DETAILS FOR STUBOUTS TABLE 1 MINIMUM DISTANCE FROM NEAREST OBSTRUCTION/WALL Z (IN) TO NEUTRAL CONNECTION 7 TO LINE CONNECTION 12 INSTALLATION: A. BUS STUBS SHALL BE DRILLED AS SHOWN IN DETAILS 1 AND 2. BILL OF MATERIALS: NONE NOTES: I. MANUFACTURER SHALL PROVIDE AN INSULATED BARRIER TO SHIELD THE BUS BARS. ONLY THE STUBS ARE TO BE EXPOSED FOR CONNECTION OF SERVICE DROP CONDUCTORS BY SDG&E’S CREW. II. ALL NEUTRAL AND DELTA POWER LEG BUS STUBS SHALL BE PERMANENTLY IDENTIFIED (MARKED) IN A MANNER CONFORMING TO THE REQUIREMENTS OF THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) AND SDG&E. a III. SDG&E WILL FURNISH LUGS AND INSULATE THE CONNECTIONS BELOW THE BARRIER. IV. CONTACT THE APPROPRIATE PROJECT MANAGEMENT REGIONAL OFFICE FOR VAULT INSTALLATIONS. b REFERENCE: a FOR IDENTIFICATION, SEE SG112. b SEE SG021. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

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SCOPE: THIS STANDARD DESCRIBES REQUIREMENTS FOR SERVICE ENTRANCE RACEWAYS. INSTALLATION: A. GENERAL INFORMATION: FOR EACH OVERHEAD SERVICE CONNECTION, THE CONTRACTOR FURNISHES AND INSTALLS AN APPROVED RAINTIGHT SERVICE ENTRANCE RACEWAY, INCLUDING ALL FITTINGS, FROM THE SERVICE EQUIPMENT TO THE POINT OF SERVICE DROP ATTACHMENT. SUCH A SERVICE RACEWAY MAY BE CONCEALED OR EXPOSED. THE INSTALLATION MUST COMPLY WITH ALL APPLICABLE ELECTRICAL CODES AND ORDINANCES OF THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). B. INSTALLATION METHOD: THE SERVICE ENTRANCE RACEWAY SHOULD BE CONTINUOUS AND WITHOUT CONDULET OR JUNCTION BOX. HOWEVER, WITH THE PRIOR APPROVAL OF THE AHJ AND SDG&E (UTILITY), SUCH DEVICES MAY BE INSTALLED WHEN EXCESSIVE LENGTH AND BENDS IN THE SERVICE ENTRANCE RACEWAY MAKE A CONTINUOUS RUN IMPRACTICAL. 1. IF EXPOSED TO WEATHER, THE DEVICES SHALL BE RAINTIGHT. 2. IF A CONDULET OR JUNCTION BOX IS APPROVED IN THE SERVICE ENTRANCE RACEWAY, IT WILL NEED TO BE EQUIPPED WITH ACCESSORIES TO PERMIT SEALING. 3.

BETWEEN THE METERING EQUIPMENT AND THE SERVICE ENTRANCE CONNECTION, THE DEVICES SHALL BE LOCATED SO THAT THEY ARE PLAINLY VISIBLE FOR PERPETUAL INSPECTION BY THE UTILITY. C. SEALING SERVICE ENTRANCE RACEWAYS AND METERING ENCLOSURES: THE UTILITY WILL SEAL AUXILIARY RACEWAYS, GUTTERS, OR METER TROUGHS CONTAINING SERVICE ENTRANCE CONDUCTORS (UNMETERED CONDUCTORS), INCLUDING METER ENCLOSURES, METER SOCKET BOXES AND SIMILAR ENCLOSURES WHICH FORM A PART OF THE SERVICE ENTRANCE INSTALLATION THAT IS ON THE SUPPLY (LINE) SIDE OF THE METERING EQUIPMENT. IT IS NOT ACCEPTABLE TO INSTALL THE CUSTOMER’S FEEDER (METERED) CONDUCTORS IN A SERVICE ENTRANCE RACEWAY, LINE GUTTER OR METER TROUGH, OR IN A METERING ENCLOSURE AHEAD (ON THE LINE SIDE) OF THE OVERCURRENT PROTECTIVE DEVICE. ELECTRICALLY PROTECTED (FUSED) AND UNPROTECTED (UNFUSED) CONDUCTORS ARE NOT ALLOWED TO OCCUPY THE SAME RACEWAY OR LINE GUTTER. a BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: a FOR SEALING OF METERS AND METERING EQUIPMENT AND SEALING REQUIREMENTS, SEE SG503. © 1998 - 2023 San Diego Gas & Electric Company.

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SCOPE: THIS STANDARD DESCRIBES REQUIREMENTS FOR 0-600V SERVICE ENTRANCE CONDUCTORS. DEFINITIONS: • SERVICE ENTRANCE CONDUCTORS (OVERHEAD): CUSTOMER-OWNED CONDUCTORS EXTENDING FROM THE SERVICE EQUIPMENT TO THE POINT OF CONNECTION TO THE UTILITY SERVICE DROP CONDUCTORS. • SERVICE DROP CONDUCTORS: SDG&E (UTILITY’S) OVERHEAD CONDUCTORS EXTENDING FROM ITS POLE LINE TO THE POINT OF SERVICE DROP SUPPORT ON A BUILDING OR STRUCTURE. I DETAIL 1 U FIGURE 1 DETAIL 1 DRIP LOOPS U DRIP LOOP © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES PS JTM JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG112.1 1 OF 7 SERVICE ENTRANCE CONDUCTORS 0-600V

1’-0” MIN. 1’-0” MIN. 1’-6” MAX. a WALL FACING POLE LINE 1’-0” MIN. EXAMPLE 1 DECORATIVE APPENDAGE AND/OR ROOF 1’-0” MIN. 1’-0” MIN. 1’-0” 1’-0” MIN. MIN. WALL FACING WALL FACING POLE LINE POLE LINE 1’-6” MAX 1’-6” MAX. EXAMPLE 2 EXAMPLE 3 FLAT OR SLOPING EAVE OR ROOF PARAPET WALL FIGURE 2 0-600V CLEARANCE ABOVE A METALLIC OR NON-METALLIC DECORATIVE APPENDAGE, EAVE, ROOF OR PARAPET WALL F G II III IV a © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES PS JTM JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG112.2 2 OF 7 SERVICE ENTRANCE CONDUCTORS 0-600V

1’-0” MIN. 1’-0” MIN. 1’-0” 1’-0” MIN. MIN. 1’-6” 1’-6” WALL FACING MAX. WALL FACING MAX. POLE LINE POLE LINE EXAMPLE 4 EXAMPLE 5 FLAT ROOF FLAT OR SLOPING EAVE OR ROOF 1’-0” MIN. 1’-0” MIN. WALL FACING POLE LINE 1’-6” MAX. EXAMPLE 6 PARAPET WALL FIGURE 2 (CONT’D) 0-600V CLEARANCE ABOVE A METALLIC OR NON-METALLIC DECORATIVE APPENDAGE, EAVE, ROOF OR PARAPET WALL F G II III IV a INSTALLATION: GENERAL INFORMATION: A. FOR EACH OVERHEAD SERVICE CONNECTION, THE CONTRACTOR FURNISHES AND INSTALLS SERVICE ENTRANCE CONDUCTORS FROM THE SERVICE EQUIPMENT TO THE POINT OF CONNECTION TO THE UTILITY’S SERVICE DROP CONDUCTORS. THESE CONDUCTORS MAY BE AN INDIVIDUAL SET OR PARALLEL SETS IN CONDUIT RACEWAYS, BUSWAY OR SERVICE ENTRANCE CABLE OF TYPES APPROVED BY THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). B. BUSWAY TYPE SERVICE ENTRANCE SHALL BE REQUIRED WHERE MORE THAN THREE PARALLELED OVERHEAD SERVICE ENTRANCE CONDUCTORS PER PHASE ARE NECESSARY TO SUPPLY THE LOAD FOR ONE METERING LOCATION. b © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

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INSTALLATION (CONT’D): GENERAL INFORMATION (CONT’D): C. IN GENERAL, A BUILDING SHOULD HAVE ONLY ONE SET OF SERVICE ENTRANCE CONDUCTORS, EXCEPT AS FOLLOWS: 1. WHERE PERMITTED BY THE AHJ, BUILDINGS WITH MULTIPLE TYPES OF OCCUPANCY MAY HAVE TWO OR MORE SEPARATE SETS OF SERVICE ENTRANCE CONDUCTORS WHICH ARE TAPPED FROM A SINGLE POINT OF SERVICE DELIVERY. UP TO SIX SETS OF SERVICE ENTRANCE CONDUCTORS MAY BE TAPPED FROM A SINGLE SET OF MAIN SERVICE ENTRANCE CONDUCTORS PROVIDED THE PHASE-TO-PHASE VOLTAGE BETWEEN THE CONDUCTORS DOES NOT EXCEED 300V. WHERE MAIN SERVICE ENTRANCE CONDUCTORS SUPPLY SEVERAL UNITS OF A MULTIPLE OCCUPANCY BUILDING, THE JUNCTION BOXES IN WHICH SUB-SERVICE ENTRANCE CONDUCTORS ARE CONNECTED TO THE MAIN SERVICE NEED TO BE IN A READILY ACCESSIBLE AND VISIBLE LOCATION ON THE EXTERIOR OF THE BUILDING OR IN A PUBLIC AREA. THEY MUST BE SEALABLE AND IF EXPOSED TO WEATHER, RAINTIGHT. 2. BUILDINGS OF UNUSUALLY LARGE AREA MAY HAVE MORE THAN ONE POINT OF SERVICE DELIVERY. c 3.

A SEPARATE SET OF SERVICE ENTRANCE CONDUCTORS MAY BE INSTALLED IF REQUIRED FOR FIRE PUMPS OR FOR EMERGENCY LIGHTING PURPOSES. 4. ADDITIONAL SERVICE ENTRANCE CONDUCTORS MAY BE INSTALLED FOR A SECOND CLASS OF SERVICE (DIFFERENT VOLTAGE) WHEN APPROVED BY THE UTILITY. SIZE AND CAPACITY: D. THE CAPACITY OF SERVICE ENTRANCE CONDUCTORS SHALL COMPLY WITH ELECTRICAL CODES AND ORDINANCES ENFORCED BY THE AHJ. THE SMALLEST SIZE SHOULD NOT BE LESS THAN 6 AWG, EXCEPT THAT 8 AWG MAY BE USED IN EITHER TWO-WIRE, OR THREE-WIRE SERVICE ENTRANCE INSTALLATIONS WHICH SUPPLY NOT MORE THAN TWO 2-WIRE BRANCH CIRCUITS, WITH A MAXIMUM OF ONE 15A AND ONE 20A CIRCUIT. IDENTIFICATION: E. ALL NEUTRAL CONDUCTORS SHALL BE PERMANENTLY IDENTIFIED WHITE OR GRAY IN COLOR IN A MANNER ACCEPTABLE TO THE AHJ. FOR THREE-PHASE DELTA-CONNECTED SERVICES, THE POWER LEG SHALL BE PERMANENTLY IDENTIFIED ORANGE IN COLOR IN A MANNER ACCEPTABLE TO THE AHJ. THE IDENTIFICATION FOR BOTH NEUTRAL AND POWER LEG CONDUCTORS SHALL BE APPLIED ON THE OPEN CONDUCTORS (DRIP LOOP) EXTENDED FROM A SERVICE HEAD OR ON THE BUS STUBS OF A BUSWAY

SERVICE HEAD, WHICHEVER IS APPLICABLE, AND THROUGHOUT THE METER AND SERVICE EQUIPMENT. THE UTILITY DOES NOT REQUIRE OTHER CONDUCTORS TO BE IDENTIFIED. MAXIMUM LENGTH OF SERVICE ENTRANCE CONDUCTORS EXTENDED FROM SERVICE HEAD AND THE DRIP LOOP: F THE LENGTH OF OPEN SERVICE ENTRANCE CONDUCTORS BETWEEN THE SERVICE HEAD AND THE POINT OF CONNECTION TO THE UTILITY’S SERVICE DROP (DRIP LOOP) SHALL NOT EXCEED 3 FEET. G THE CONTRACTOR SHOULD ENSURE THAT THE SERVICE ENTRANCE CONDUCTORS EXTENDED FROM THE SERVICE HEAD HAVE SUFFICIENT LENGTH TO BE CONNECTED TO THE UTILITY’S SERVICE DROP CONDUCTORS. SPLICES ARE NOT PERMITTED IN THE CUSTOMER-OWNED SERVICE ENTRANCE CONDUCTORS. WHEN THE ACTUAL LENGTH REQUIRED IS NOT KNOWN, 3 FEET WILL BE SUFFICIENT. H. SEE DRIP LOOP INSTALLATION INSTRUCTIONS WHEN, BY NECESSITY, A SERVICE HEAD IS INSTALLED BELOW THE POINT OF SERVICE DROP ATTACHMENT. U CONNECTION OF SERVICE ENTRANCE CONDUCTORS TO SERVICE DROP CONDUCTORS: J. THE UTILITY WILL COMPLETE THE SERVICE CONNECTION BY: 1. CONNECTING THE CUSTOMER’S SERVICE ENTRANCE CONDUCTORS TO ITS SERVICE DROP CONDUCTORS, OR

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INSTALLATION (CONT’D): CONNECTION OF SERVICE ENTRANCE CONDUCTORS TO SERVICE DROP CONDUCTORS (CONT’D): 2. CONNECTING ITS SERVICE DROP CONDUCTORS TO BUSWAY SERVICE HEAD BUS-DUCT STUBS, EXCEPT WHEN VOLTAGE RATED INSULATED SERVICE ENTRANCE CONDUCTORS ARE REQUIRED BETWEEN BUSWAY BUS-DUCT STUBS AND SERVICE DROP CONDUCTORS AT LOCATIONS WHERE SERVICE ENTRANCE CONDUCTORS WILL PASS ABOVE ANY PORTION OF A BUILDING AT THE REDUCED CLEARANCE PERMITTED BY SOME EXCEPTIONS. INSULATED SERVICE ENTRANCE CONDUCTORS, IN SUCH A CASE, SHALL BE FURNISHED AND CONNECTED TO BUS-DUCT STUBS BY THE CONTRACTOR AND BE OF SUFFICIENT LENGTH FOR CONNECTION TO THE UTILITY’S SERVICE DROP CONDUCTORS. W SERVICE ENTRANCE CABLE: K. WHERE PERMITTED BY THE AHJ, STANDARD TYPES OF SERVICE ENTRANCE CABLE WITH APPROVED RAINTIGHT FITTINGS MAY BE FURNISHED AND INSTALLED BY THE CONTRACTOR IN LIEU OF SERVICE ENTRANCE CONDUCTORS IN RACEWAYS. L. SERVICE ENTRANCE CABLES SHALL BE INSTALLED ON THE SURFACE OF THE BUILDING. TAPS AND SPLICES IN SERVICE RACEWAYS: M. THE CONDUCTORS SHALL BE CONTINUOUS WITHOUT TAPS OR SPLICES, EXCEPT AS FOLLOWS:

1. APPROVED CLAMPED OR BOLTED CONNECTIONS MAY BE MADE IN JUNCTION BOXES OR APPROVED DEVICES. d 2. TAPS MAY BE MADE IN APPROVED JUNCTION BOXES WHERE SUBSETS OF INDIVIDUAL SERVICE ENTRANCE CONDUCTORS ARE PERMITTED TO BE EXTENDED FROM MAIN BUS SERVICE ENTRANCE CONDUCTOR RUN. 3. TAPS MAY BE MADE IN AUXILIARY GUTTERS OR METER TROUGHS WHERE INDIVIDUAL SETS OF SERVICE ENTRANCE CONDUCTORS ARE PERMITTED TO BE TAPPED TO AN APPROVED GROUP OF INDIVIDUAL SERVICE SWITCHES. 4. THE NEUTRAL SHALL BE CONTINUOUS WITHOUT SPLICE UNTIL TERMINATED AT THE GROUNDING BUS. TAPS MAY BE MADE AS INDICATED PREVIOUSLY. NEUTRAL CONDUCTORS BROKEN AT AN APPROVED LANDING BLOCK OR BUS SHALL BE CONSIDERED AS CONTINUOUS. OTHER CONDUCTORS IN SERVICE ENTRANCE RACEWAYS: N. NO CONDUCTORS OTHER THAN SERVICE ENTRANCE CONDUCTORS ARE PERMITTED IN THE SERVICE ENTRANCE RACEWAY, EXCEPT WHEN CONTINUOUS BONDING WIRES ARE REQUIRED BY THE APPROPRIATE INSPECTION AUTHORITY TO CONNECT MULTIPLE SECTIONS OF THE CUSTOMER'S SERVICE EQUIPMENT. WHERE A MAIN DISCONNECT IS INSTALLED ON THE LINE SIDE OF A GROUP

OF METERS AND SERVICE SWITCHES, THE CONDUCTORS ON THE LINE SIDE OF THE MAIN DISCONNECT, AND ANY UNMETERED CONDUCTORS (FEEDERS) ON THE LOAD SIDE OF THE MAIN DISCONNECT TO THE METERS WILL BE TREATED AS SERVICE ENTRANCE CONDUCTORS. THE PURPOSE OF THIS RULING IS TO PROHIBIT METERED AND UNMETERED CONDUCTORS IN THE SAME RACEWAY. O. LINE SIDE (UNMETERED) AND LOAD SIDE (METERED) CONDUCTORS ARE PROHIBITED FROM OCCUPYING THE SAME RACEWAY, EXCEPT IN METER SOCKETS AND TERMINATING ENCLOSURES. P. NO CONDUCTORS FROM THE LOAD SIDE OF ANY OR FROM A SIMILAR SOURCE MAY RE-ENTER AN AUXILIARY GUTTER OR METER TROUGH CONTAINING UNMETERED FEEDER OR SERVICE ENTRANCE CONDUCTORS, EXCEPT IN A SEPARATELY BARRIERED SECTION. Q. A MAIN GROUNDING CONNECTION FROM THE GROUNDING ELECTRODE OR WATER PIPE TO A NEUTRAL CONDUCTOR OF THE SERVICE MAY BE IN AN AUXILIARY GUTTER OR METER TROUGH WHERE MORE THAN ONE METER IS INVOLVED, PROVIDED THE INSTALLATION IS MADE SO AS TO MINIMIZE INTERFERENCE AND APPROVED BY THE AHJ. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES PS JTM JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG112.5 5 OF 7 SERVICE ENTRANCE CONDUCTORS 0-600V

INSTALLATION (CONT’D): GROUNDING AND BONDING: R. THE SERVICE RACEWAY, METERING ENCLOSURE AND SERVICE EQUIPMENT FOR ALL CLASSES OF SERVICE, INCLUDING ANY NEUTRAL SERVICE ENTRANCE CONDUCTOR, NEEDS TO BE BONDED AND GROUNDED IN COMPLIANCE WITH ELECTRICAL CODES AND ORDINANCES ENFORCED BY THE AHJ. IN ADDITION, A NEUTRAL BOND CONNECTION SHALL BE MADE BY THE CONTRACTOR, CONNECTING THE NEUTRAL SERVICE ENTRANCE CONDUCTOR TO THE INTERIOR OF THE METER SOCKET ENCLOSURE FOR MULTIPLE SOCKETS, OR SEALED SERVICE GUTTER. IN SUCH CASES, THE COMPLETE NEUTRAL BOND CONNECTION SHALL BE ENTIRELY WITHIN THE PART OF THE ENCLOSURE WHICH IS UNDER THE UTILITY'S SEAL. IN COMBINATION METER SOCKET AND BREAKER ENCLOSURES, THE NEUTRAL BOND CONNECTION SHALL BE ENTIRELY ON THE SUPPLY SIDE OF THE BARRIER BETWEEN THE UPPER PART OF THE DEVICE AND THE BREAKER COMPARTMENT. S. ELECTRIC BONDING TO, OR USE OF SDG&E GAS SERVICE PIPING, GAS RISERS OR GAS METER FACILITIES FOR ELECTRIC BONDING AND GROUNDING IS NOT PERMITTED. ALUMINUM SERVICE ENTRANCE CONDUCTORS: T.

ALUMINUM SERVICE ENTRANCE CONDUCTORS MAY BE USED PROVIDED THE TERMINALS AND CONNECTORS MAKING CONNECTIONS, TAPS OR SPLICES IN METER AND SERVICE DEVICES ARE OF A TYPE SUITABLE FOR RECEIVING ALUMINUM CONDUCTORS AND ARE FURNISHED AND INSTALLED BY THE CONTRACTOR IN ACCORDANCE WITH APPLICABLE ELECTRICAL CODES ENFORCED BY THE AHJ. DRIP LOOPS: U WHERE BY NECESSITY A SERVICE HEAD IS INSTALLED BELOW THE POINT OF SERVICE DROP ATTACHMENT, DRIP LOOPS SHOULD BE FORMED IN THE OPEN SERVICE ENTRANCE CONDUCTORS. TO PREVENT SIPHONING OF WATER INTO SERVICE RACEWAY OR EQUIPMENT, AN INVERTED “V” NOTCH SHOULD BE CUT THROUGH THE INSULATION ON THE CURRENT CARRYING STRANDS AT THE LOWEST POINT ON THE BOTTOM SIDE OF EACH SERVICE ENTRANCE CONDUCTOR DRIP LOOP AS SHOWN IN FIGURE 1. CLEARANCES ABOVE COMMERCIAL OR INDUSTRIAL BUILDINGS AND STRUCTURES: W THE LEGAL REQUIREMENT FOR 0–600V OPEN WIRE SERVICE ENTRANCE CONDUCTORS IS A VERTICAL CLEARANCE OF NOT LESS THAN 8 FEET ABOVE ANY PORTION OF A METALLIC OR NON-METALLIC BUILDING OR STRUCTURE SERVED, EXCEPT: 1.

0–300V SERVICE ENTRANCE CONDUCTORS MAY BE LESS THAN 8 FEET BUT NOT LESS THAN 12 INCHES ABOVE A NON-METALLIC DECORATIVE APPENDAGE, EAVE, ROOF, OR PARAPET WALL, PROVIDED THE SERVICE HEAD IS LOCATED NOT MORE THAN 18 INCHES BACK OF THE EXTERIOR FACE OF THE BUILDING WALL. 2. 0–300V SERVICE ENTRANCE CONDUCTORS MAY BE LESS THAN 8 FEET BUT NOT LESS THAN 12 INCHES ABOVE A METALLIC EAVE, ROOF OR PARAPET WALL, PROVIDED THE SERVICE HEAD IS NOT MORE THAN 18 INCHES BACK OF THE OUTER EDGE OF THE EAVE, ROOF, OR PARAPET WALL. 3. 0-600V SERVICE ENTRANCE CONDUCTORS MAY BE LESS THAN 8 FEET BUT NOT LESS THAN 12 INCHES ABOVE A METALLIC OR NON-METALLIC EAVE, ROOF, OR PARAPET WALL, PROVIDED THE SERVICE HEAD IS NOT MORE THAN 18 INCHES BACK OF THE OUTER EDGE OF THE EAVE, ROOF, OR PARAPET WALL. BILL OF MATERIALS: NONE NOTES: I FORM DRIP LOOPS IN SERVICE ENTRANCE CONDUCTORS WHERE SERVICE HEAD IS BELOW SERVICE DROP ATTACHMENT. 3 FEET MAXIMUM LENGTH II NO SUPPLY SERVICE WIRES PERMITTED WITHIN SHADED ZONE. III SERVICE ENTRANCE CONDUCTORS AND SERVICE DROP CONDUCTORS ARE NOT PERMITTED WITHIN THE SHADED ZONES

ILLUSTRATED. IV 0–600V SERVICE DROP CONDUCTORS AND SUPPORTING SERVICE INSULATOR MAY BE ATTACHED TO A CONDUIT RISER IN LIEU OF THE SUPPORT RACK PROVIDED THE SERVICE ENTRANCE CONDUCTORS AND SERVICE DROP CONDUCTORS DO NOT PASS THROUGH THE SHADED ZONES ILLUSTRATED. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES PS JTM JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG112.6 6 OF 7 SERVICE ENTRANCE CONDUCTORS 0-600V

REFERENCE: a FOR SERVICE DROP CLEARANCES ABOVE BUILDINGS, A CORNICE OR APPENDAGE, SEE SG107. b SEE SG109 AND SG110. c FOR ELECTRIC SERVICE POLICIES, SEE SG013. d SEE SG111. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES PS JTM JTM KRG 01/02/2025 F B FORMATTING EDM JIK - - 04/24/2023 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG112.7 7 OF 7 SERVICE ENTRANCE CONDUCTORS 0-600V

PAGE SUBJECT 202 ALPHABETICAL SUBJECT INDEX 203 GENERAL INFORMATION 204 CUSTOMER-OWNED SERVICE & METER POLE PERMANENT/CLIMBABLE, 0 – 600 VOLTS 205 CUSTOMER-OWNED SERVICE & METER POLES TEMPORARY/NON-CLIMBABLE, 0 – 600 VOLTS 206 CUSTOMER-OWNED SERVICE & METER POLE WITH MULTIPLE METERS PERMANENT OR TEMPORARY INSTALLATION 207 CUSTOMER-OWNED SERVICE WITH MULTIPLE METERS FOR UNDERGROUND PERMANENT OR TEMPORARY INSTALLATION 208 TEMPORARY SERVICE FROM SDG&E HANDHOLE TO CUSTOMER-OWNED SERVICE & METER INSTALLATION 209 TEMPORARY SERVICE FROM SDG&E POLE OR PADMOUNT TRANSFORMER TO CUSTOMER-OWNED SERVICE & METER INSTALLATION 210 TEMPORARY SERVICE TO PERMANENT SERVICE & METERING ENCLOSURE (TSPB) © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK -- -- 12/07/2020 E A NEW PAGE -- LSM LSM TPM 11/01/2017 D Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES

SHEET SG201.1 1 OF 1 CUSTOMER-OWNED METER POLES TABLE OF CONTENTS

SUBJECT PAGE ADDRESS MARKING..................................................................................................................................................................203.2 AVAILABLE SECONDARY FAULT CURRENT.................................................................................................................................203.2 CUSTOMER-OWNED SERVICE & METER POLE FOR PERMANENT OR TEMPORARY SERVICE, 0 – 600 VOLTS..................... 203.1 - 203.2 CUSTOMER-OWNED SERVICE & METER POLES PERMANENT/CLIMBABLE, 0 – 600 VOLTS............................................... 204.1 – 204.3 CUSTOMER-OWNED SERVICE & METER POLES TEMPORARY/NON-CLIMBABLE, 0 – 600 VOLTS....................................... 205.1 – 205.4 CUSTOMER-OWNED SERVICE & METER POLE WITH MULTIPLE METERS PERMANENT OR TEMPORARY INSTALLATION................... 206 CUSTOMER-OWNED SERVICE WITH MULTIPLE METERS FOR UNDERGROUND PERMANENT OR TEMPORARY INSTALLATION........... 207

GENERAL INFORMATION..........................................................................................................................................................203.1 GENERAL REQUIREMENTS........................................................................................................................................................203.1 MARKING, ADDRESS.................................................................................................................................................................203.2 MULTIPLE METER INSTALLATION........................................................................................................................................ 206, 207 PERMANENT POLES..................................................................................................................................................... 204.1 – 204.3 PERMANENT OR TEMPORARY SERVICE INSTALLATIONS....................................................................................................... 206, 207

SERVICE & METER POLE SPECIFICATIONS................................................................................................................................203.1 SERVICE DROP CLEARANCES............................................................................................................................... 203.1, 204.2, 205.3 STEEL SERVICE & METER POLES.................................................................................................................................. 203.1 – 203.2 TEMPORARY POLES..................................................................................................................................................... 205.1 – 205.4 TEMPORARY SERVICE FROM AN OVERHEAD SOURCE..................................................................... 205.1 – 205.4, 206, 209.1 – 209.2 TEMPORARY SERVICE FROM AN UNDERGROUND SOURCE............................................................................................ 207, 208, 209 TEMPORARY SERVICE FROM SDG&E HANDHOLE TO CUSTOMER-OWNED SERVICE & METER INSTALLATION..................

208.1 – 208.2 TEMPORARY SERVICE FROM SDG&E POLE OR PADMOUNT TRANSFORMER TO CUSTOMER-OWNED SERVICE & METER INSTALLATION................................................................................................ 209.1 – 209.2 TEMPORARY SERVICE TO PERMANENT METERING ENCLOSURE (TSPB)........................................................................................ 210 © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK -- -- 12/07/2020 E A EDITORIAL CHANGES -- LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG202.1 1 OF 1 CUSTOMER-OWNED METER POLES ALPHABETICAL SUBJECT INDEX

SCOPE: THIS SERVICE GUIDE PROVIDES GENERAL INFORMATION REGARDING SERVICE AND METER POLES OR POLE-TYPE STRUCTURES. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. ALL PERMANENT CUSTOMER-OWNED SERVICE AND METER POLES OR POLE-TYPE STRUCTURES ON WHICH SDG&E (UTILITY) OVERHEAD SERVICE DROP CONDUCTORS ARE TO BE SUPPORTED ARE DEFINED BY THE CALIFORNIA PUBLIC UTILITIES COMMISSION AS BEING CLIMBABLE. FOR THIS REASON, THEY ARE SUBJECT TO COMPLIANCE WITH CALIFORNIA PUBLIC UTILITIES COMMISSION RULES FOR OVERHEAD ELECTRIC LINE CONSTRUCTION, GENERAL ORDER 95. EXCEPTED ARE POLES OR WOODEN TIMBERS PERMANENTLY ATTACHED TO BUILDINGS IN SUCH A MANNER THAT THEY ARE CONSIDERED TO BE NON-CLIMBABLE AND PART OF THE BUILDING STRUCTURE, IN WHICH CASE THEY ARE TREATED AS A SERVICE DROP ATTACHMENT RISER AND ARE SUBJECT TO COMPLIANCE WITH APPLICABLE STRENGTH AND CLEARANCE REQUIREMENTS. THE UTILITY HAS DETERMINED TEMPORARY CUSTOMER-OWNED SERVICE AND METER POLES WILL NOT BE CLIMBED. II. MINIMUM REQUIREMENTS FOR CUSTOMER-OWNED SERVICE AND METER POLES ARE SPECIFIED AND ILLUSTRATED ON THE FOLLOWING PAGES.

COMPLIANCE WITH THESE MINIMUM REQUIREMENTS IS THE RESPONSIBILITY OF THE CUSTOMER OR CONTRACTOR. SERVICE CANNOT BE ESTABLISHED TO ANY INSTALLATION NOT COMPLYING WITH THESE MINIMUM REQUIREMENTS, OR WHERE PERMIT AND INSPECTION CLEARANCE FROM THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) HAS NOT BEEN OBTAINED. THE FOLLOWING INFORMATION PROVIDES ASSISTANCE IN DETERMINING A CORRECT AND UNIFORM INTERPRETATION OF REQUIREMENTS FOR CUSTOMER-OWNED PERMANENT OR TEMPORARY SERVICE AND METER POLES. III. GENERAL REQUIREMENTS THE REQUIREMENTS ON DIMENSIONS PERTAINING TO SEPARATION, ELEVATION, LOCATION OF CONSTRUCTION UNITS, DESCRIPTION OF APPROVED MATERIALS, CONSTRUCTION METHODS AND CLEARANCES ARE BASIC MINIMUMS SPECIFIED BY LOCAL CODES AND ORDINANCES, STATE OF CALIFORNIA BUILDING STANDARDS, CALIFORNIA ELECTRICAL CODE AND CALIFORNIA PUBLIC UTILITIES COMMISSION RULES FOR OVERHEAD ELECTRIC LINE CONSTRUCTION, GENERAL ORDER 95. DEVIATION FROM THESE MINIMUM REQUIREMENTS, OR SUBSTITUTION OF MATERIAL OTHER THAN SPECIFIED, CANNOT BE GRANTED BY THE UTILITY. IV. SERVICE DROP CLEARANCES

SERVICE DROP CLEARANCES ABOVE GROUND ARE SHOWN ON THE ACCOMPANYING SPECIFICATIONS AND DRAWINGS. FOR SERVICE DROP CLEARANCE REQUIRED OVER ROOFS, FROM BUILDINGS, STRUCTURES, OBSTRUCTIONS, AND OTHER CONDUCTORS, REFER TO SG112. a V. SERVICE & METER POLE SPECIFICATIONS SEE DRAWINGS AND GENERAL NOTES IN SG204 AND SG205 FOR PERMANENT AND TEMPORARY SERVICE AND METER POLE REQUIREMENTS. b c VI. STEEL SERVICE & METER POLE a. A STEEL POLE MAY BE USED FOR BOTH A TEMPORARY OR PERMANENT SERVICE AND METER POLE, PROVIDED ITS STRENGTH IS ADEQUATE AND IS APPROVED BY THE UTILITY. SUCH POLE SHALL BE SELF-SUPPORTING AND IN OTHER RESPECTS COMPLY WITH SPECIFICATIONS AND DRAWINGS ILLUSTRATING PERMANENT OR TEMPORARY CUSTOMER- OWNED SERVICE AND METER POLE AS APPLICABLE FOR ITS INTENDED USE. b. THE COVERING OF METALLIC CONDUIT RISERS AND WOOD BLOCKS OVER THE TOPS OF THE RISERS WILL NOT BE REQUIRED, PROVIDED THE POLE IS GROUNDED IN ACCORDANCE WITH GOVERNING CODES AND TITLE 24, STATE BUILDING STANDARDS; AND PROVIDED ALL METALLIC CONDUITS ARE ADEQUATELY BONDED TO THE POLE

MECHANICALLY WITH APPROVED CLAMPS OR CONNECTORS. c. A STEEL POLE SHALL BE SET IN AN ADEQUATE CONCRETE FOUNDATION TO ENSURE THE SELF-SUPPORTING CONDITION. THE POLE SHALL BE PAINTED OR, PREFERABLY, GALVANIZED TO PREVENT CORROSION. STEEL POLES SHALL BE OF HEAVY WALL PIPE 3 INCHES OR LARGER IN DIAMETER. © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK -- -- 12/07/2020 E A EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG203.1 1 OF 2 GENERAL INFORMATION

d. THE CUSTOMER-OWNED STEEL SERVICE AND METER POLE MUST BE LOCATED WITHIN A 20’ RADIUS FROM A ROAD OR OTHER DRIVABLE SURFACE SO THE UTILITY CAN CONNECT AND MAINTAIN THE SERVICE DROP FROM A BUCKET TRUCK. IF THE SERVICE AND METER POLE CANNOT BE LOCATED WITHIN THE 20’ RADIUS, A PERMANENT/CLIMBABLE POLE MUST BE INSTALLED. b e. CONSULT THE UTILITY FOR APPROVAL IN ALL CASES WHERE A STEEL POLE IS PROPOSED TO BE USED. VII. ADDRESS MARKING ALL METER POLES, TEMPORARY OR PERMANENT, MUST HAVE THE NUMERIC PORTION OF THE ADDRESS PERMANENTLY MARKED ON THE POLE OR SERVICE EQUIPMENT. VIII. AVAILABLE SECONDARY FAULT CURRENT THE UTILITY’S CONTRIBUTION TO SECONDARY FAULT CURRENT INFORMATION MAY BE FOUND IN SG006. FOR SHORT CIRCUIT CURRENT AND OVERLOAD PROTECTION REQUIREMENTS, CONSULT WITH THE AHJ. d REFERENCE: a REFER TO SG112. b REFER TO SG204. c REFER TO SG205. d REFER TO SG206. © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F

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SCOPE: THIS STANDARD SHOWS AND DESCRIBES THE INSTALLATION OF A CUSTOMER-OWNED PERMANENT/CLIMBABLE SERVICE AND METER POLE. 5” MIN. 3 I IV V 1 III XIII 2 3’-0” C XIII 4 O II E METHOD 1 A IMPREGNATED FIBER CONDUIT 1/4" MIN. THICKNESS 5 N 8’-0” MIN. V METHOD 2 6 H WOOD MOULDING 1 1/2" MIN. THICKNESS 7 M XIII 8 VIII 6’-3” MAX. METHOD 3 4’-0” MIN. 9 B BOXING OF WOOD 1 1/2" MIN. THICKNESS G FINISH GRADE 10 11 J L METHOD 4 POLE DEPTH CONDUIT K TOP VIEW D FIGURE 2 12 ALTERNATE METHODS OF COVERING F SERVICE ENTRANCE CONDUITS FIGURE 1 © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK -- -- 12/07/2020 E A EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDES SHEET SG204.1 1 OF 5 CUSTOMER-OWNED SERVICE & METER POLE PERMANENT/CLIMBABLE, 0 – 600V

INSTALLATION: A EXTEND PROTECTIVE COVERING OVER METALLIC CONDUIT TO BOTTOM OF SERVICE HEADS. DO NOT LEAVE CONDUITS EXPOSED. B SERVICE GROUND TO COMPLY TO CALIFORNIA ELECTRIC CODE AND BE MECHANICALLY PROTECTED IN COMPLIANCE WITH G.O. 95 PER ONE OF THE FOLLOWING METHODS: 1. ENCASED IN RIGID STEEL CONDUIT. 2. MINIMUM NO. 8 AWG ARMORED COPPER GROUND WIRE. 3. COVERED BY A MINIMUM OF: HARDWOOD MOULDING (OF OAK OR ROCK ELM) 3/8-INCH THICKNESS, OR DOUGLAS FIR MOULDING ½-INCH THICKNESS, OR RIGID CONDUIT OR RIGID U-SHAPED MOULDING OF A MINIMUM SCHEDULE 40 PVC, OR POLY PROTECTED GROUND WIRE. C CUSTOMER TO WIRE OUT 3 FEET BELOW TOP OF POLE. D WHEN CUSTOMER’S LOAD CONDUCTORS ARE UNDERGROUND, INSTALL CONDUIT AS INDICATED BY DASHED LINES. E PROVIDE AT LEAST 18 INCHES OF WIRE OUTSIDE OF SERVICE HEAD. F COVERING TO BE STRAPPED TO POLE WITH GALVANIZED TWO-HOLE PIPE STRAPS SPACED NOT TO EXCEED 3 FEET APART. G COVER TO BE NAILED TO SIDE PIECES. H INSTALL STRAPS BELOW FIBER CONDUITS TO PREVENT SLIPPING. J CAP ON BOTTOM AND STRAP TO POLE. K POLE SETTING DEPTH TABLE 1 POLE SETTING DEPTH

HEIGHT SETTING DEPTH 25’-0” 5’-0” 30’-0” 5’-6” 35’-0” 5’-6” L CUSTOMER TO DIG POLE HOLE IN NATURAL SOIL. BACKFILL MUST BE COMPACTED TO 90% MINIMUM WITHIN A 5-FOOT RADIUS OF THE POLE. POLE DEPTH WILL BE CONFIRMED BY INSERTION OF A GROUND ROD OR SIMILAR PROBE INTO THE PCV DEPTH CONDUIT ATTACHED TO CLIMBABLE POLE. INSTALL REMOVABLE CAP ON TOP OF CONDUIT TO PREVENT FALLING DEBRIS ENTERING CONDUIT. GUY WIRES ARE NOT PERMITTED AS A MEANS OF SUPPORTING A METER POLE. M ALL METER POLES MUST HAVE THE NUMERIC PORTION OF THE STREET ADDRESS FIRMLY ATTACHED AND FACING THE STREET OR DRIVABLE SURFACE. PLASTIC OR METALLIC NUMBERS OF THE TYPE USED FOR HOUSE ADDRESSES ARE ACCEPTABLE. N ALL CONDUIT FITTINGS MUST BE RAINTIGHT. APPROVED WIRE, NOT LESS THAN NO. 8 AWG, SHALL BE USED IN THE SERVICE ENTRANCE CONDUIT. O BOLTED TO POLE IN 1/2-INCH GAINS. © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK -- -- 12/07/2020 E

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BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 POLE, TREATED, FULL LENGTH ROUND, 25'-0”, CLASS 5 MIN. 1 -- -- -- 2 CUSTOMER LOAD CONDUCTORS AS REQ'D -- -- -- HOLDER, SERVICE DROP & WIRE -- -- -- 3 AS REQ'D RACK, SERVICE -- -- -- 4 WOOD BLOCK, 4" X 4" X 6" AS REQ'D -- -- -- PVC, SCHEDULE 40, PLASTIC (PREFERRED) 5 CONDUIT, SERVICE ENTRANCE AS REQ'D -- -- -- IRON, RIGID, GALV., 3/4" MIN. WITH PROTECTIVE COVERING (ALTERNATE) 6 STRAP, PIPE AS REQ'D -- -- -- 7 METER AS REQ'D -- -- -- 8 SAFETY SOCKET CAN WITH BYPASS TEST FACILITIES (IF REQUIRED) AS REQ'D -- -- -- 9 SERVICE GROUND AS REQ'D -- -- -- 10 REMOVABLE CAP AS REQ'D -- -- -- 11 CONDUIT, PVC, SCHEDULE 40, 6'-0", 3/4", POLE DEPTH AS REQ'D -- -- -- 12 CONDUIT CAP AS REQ'D -- -- -- NOTES: I MAXIMUM LENGTH OF SERVICE DROP SPAN SHALL BE 100 FEET. II BLOCK NOT REQUIRED FOR PVC, SCHEDULE 40 PLASTIC CONDUIT RUNS. III THESE ARE MINIMUM REQUIREMENTS FOR PERMANENT CUSTOMER-OWNED SERVICE AND METER POLES. THEY ARE APPROVED FOR TEMPORARY INSTALLATIONS. V IV POLE LOCATION: a.

POLE SHALL BE SET NOT MORE THAN 100 FEET NOR LESS THAN 10 FEET FROM THE SURFACE OF SDG&E’S SERVICE POLE AND SO LOCATED THAT ALL REQUIRED SERVICE DROP CLEARANCES WILL BE OBTAINED FROM GROUND, BUILDINGS, STRUCTURES AND OTHER CONDUCTORS ON SDG&E’S POLE INCLUDING FOREIGN COMMUNICATION AND SUPPLY CONDUCTORS. IN SELECTING THE POLE LOCATION, CONSIDERATION SHOULD BE GIVEN TO PROVIDING ADEQUATE CLEARANCE IN AREAS WHERE:  CONSTRUCTION EQUIPMENT WILL BE OPERATED.  CHANGES IN GRADE OF STREETS, DRIVEWAY, AND OTHER LANDS ARE PROPOSED.  BUILDINGS OR STRUCTURES ARE PROPOSED TO BE ADDED DURING THE PERIOD OF PERMANENT OR TEMPORARY SERVICE b. ADEQUATE CLEARANCE SHALL BE PROVIDED, WHETHER OR NOT SUCH AREAS OF CONFLICT OR OBSTRUCTION ARE ON THE PREMISES SERVED. c. CONTACT SDG&E AT ANY REGIONAL PROJECT MANAGEMENT OFFICE AND REQUEST AN ELECTRIC METER AND SERVICE LOCATION FORM. b © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F

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V SERVICE DROP MINIMUM CLEARANCES: TABLE 2 SERVICE DROP MINIMUM CLEARANCES VII LOCATION MIN. CLEARANCE (FT) AT CENTER OF STREET OR 12'-0” FROM CURB, WHICHEVER IS LESS 18 AT CURB LINE 16 OVER COMMERCIAL OR INDUSTRIAL DRIVEWAYS, PARKING AREAS OR AREAS 16 CAPABLE OF BEING TRAVERSED BY VEHICLES OVER RESIDENTIAL DRIVEWAYS 12 VI OVER AGRICULTURAL AREAS 15 OVER RAILROADS OR FOR OTHER SPECIAL CONDITIONS CONSULT YOUR SDG&E PROJECT PLANNER VI MAY BE REDUCED TO 10 FEET IF SELF-SUPPORTING CABLE (SSC) SERVICE. SERVICE DROP CABLE (SSC) SHALL BE USED BY SDG&E. THE TYPE OF CONSTRUCTION USED BY THE CUSTOMER IS THEIR OPTION. VII WHERE CLEARANCES CANNOT BE OBTAINED WITH THE 25-FOOT POLE SHOWN, A 35-FOOT MAXIMUM POLE SHALL BE USED. VIII SAFETY SOCKET CAN WITH TEST-BYPASS FACILITIES IS REQUIRED WHEN POLE IS TO BE USED FOR TEMPORARY SERVICE OR PERMANENT NON-RESIDENTIAL SERVICE. SERVICE EQUIPMENT AND RECEPTACLES MUST BE RAINTIGHT, PROPERLY RATED FOR THE LOAD TO BE SERVED, AND SHALL BE ADEQUATELY BONDED AND GROUNDED. IX.

RECEPTACLES USED TO CONNECT PORTABLE TOOLS SHALL BE 3-POLE TYPE FOR SINGLE-PHASE MOTORS AND 4-POLE TYPE FOR THREE-PHASE MOTORS, ONE CONTACT TO BE USED FOR GROUNDING CONNECTION. WHERE MORE THAN ONE VOLTAGE TYPE IS USED, RECEPTACLES SHALL BE NON-INTERCHANGEABLE. XI. PERMIT AND INSPECTION MUST BE OBTAINED FROM THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) BEFORE SERVICE WILL BE CONNECTED AND A METER SET BY SDG&E XII. CONSULT SDG&E FOR SERVICE REQUIREMENTS WHENEVER THREE-PHASE SERVICE IS DESIRED. XIII. SDG&E WILL FURNISH AND INSTALL THE METER, SERVICE DROP AND SERVICE DROP RACK OR WIRE HOLDERS. ALL OTHER EQUIPMENT, INCLUDING THE POLE, SHALL BE FURNISHED AND INSTALLED BY THE CUSTOMER. XIV. FLOOD LIGHTS, SIGNS, ROPES AND ANY SIMILAR EQUIPMENT SHALL NOT BE ATTACHED TO SERVICE AND METER POLES. XV. A TELEPHONE AND/OR CABLE TV SERVICE DROP MAY ATTACH TO A METER POLE PROVIDED: a. THE ATTACHMENT IS OUTSIDE THE CLIMBING SPACE, b. A MINIMUM RADIAL CLEARANCE OF 12 INCHES IS MAINTAINED FROM ANY PORTION OF THE DRIP LOOP, AND c. IT MEETS ALL G.O. 95 REQUIREMENTS. XVI.

REQUIRED WORK AREA AROUND CLIMBABLE METER AND SERVICE POLES: 8 FEET OF UNOBSTRUCTED RADIAL CLEARANCE AROUND THE POLE IS REQUIRED. XVII. REQUIRED WORKING SPACE IN FRONT OF THE METER PANEL: A MINIMUM OF 3-FOOT BY 3-FOOT CLEAR AND LEVEL WORKING SPACE IS REQUIRED IN FRONT OF THE METER PANEL MEASURED FROM FACE OF PANEL. XVIII. TO MAINTAIN SAFE, CLEAR AND LEVEL WORKING SPACE IN FRONT OF NEW OR EXISTING NON-RESIDENTIAL METER AND SERVICE EQUIPMENT, A CONCRETE SLAB IS REQUIRED FOR THE FULL WORKING SPACE. c © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK -- -- 12/07/2020 E A EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDES SHEET SG204.4 4 OF 5 CUSTOMER-OWNED SERVICE & METER POLE PERMANENT/CLIMBABLE, 0 – 600V

REFERENCE: a. REFER TO OH645. b REFER TO SG021. c REFER TO SG504.5. © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK -- -- 12/07/2020 E A EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDES SHEET SG204.5 5 OF 5 CUSTOMER-OWNED SERVICE & METER POLE PERMANENT/CLIMBABLE, 0 – 600V

SCOPE: THIS STANDARD SHOWS AND DESCRIBES THE INSTALLATION OF A CUSTOMER-OWNED TEMPORARY/NON-CLIMBABLE SERVICE AND METER POLE. 1 VII 5” MIN. 2 I V XIX 3 E II 3’-0” 4 G METHOD 1 IMPREGNATED FIBER CONDUIT 1/4" MIN. THICKNESS F H 5 VI III 8’-0” MIN. 6 J 7 VII XV METHOD 2 8 VIII WOOD MOULDING 1 1/2" MIN. THICKNESS 6’-3” MAX. 4’-0” MIN. 9 IX FINISH GRADE 10 K L SETTING DEPTH FOR 20’-0” POLE - 4’-0” METHOD 3 BOXING OF WOOD N 1 1/2" MIN. THICKNESS FIGURE 1 FIGURE 2 ALTERNATE METHODS OF COVERING M SERVICE ENTRANCE CONDUITS © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A NO CHANGES-REAFFIRMED -- JC TPM MDJ 08/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG205.1 1 OF 4 CUSTOMER-OWNED SERVICE & METER POLE TEMPORARY/NON-CLIMBABLE, 0 – 600V

INSTALLATION: A. NO SDG&E EMPLOYEE SHALL PLACE A LADDER AGAINST OR OTHERWISE CLIMB THE TEMPORARY POLE FOR THE PURPOSE OF INSTALLING, REPAIRING, OR REMOVING THE ELECTRIC SERVICE CONNECTIONS. B. TEMPORARY SERVICE OR METER POLES SHALL NOT BE SET AT ANY LOCATION WHERE A CHANGE TO PERMANENT STATUS IS PLANNED. C. THE TEMPORARY/NON-CLIMBABLE POLE MUST BE LOCATED WITHIN A 20-FOOT RADIUS FROM A ROAD OR OTHER DRIVABLE SURFACE SO SDG&E CAN CONNECT AND MAINTAIN THE SERVICE DROP FROM A BUCKET TRUCK. TRUCK ACCESS MUST BE MAINTAINED DURING THE PERIOD OF TEMPORARY SERVICE. I D. ANY SERVICE OR METER POLES THAT CANNOT BE LOCATED WITHIN THE 20-FOOT RADIUS MUST BE BUILT TO THE STANDARD OF A PERMANENT/CLIMBABLE POLE. E CUSTOMER TO WIRE OUT 3 FEET BELOW TOP OF POLE. F PROVIDE AT LEAST 18 INCHES OF WIRE OUTSIDE OF SERVICE HEAD. G WOOD BLOCKS TO BE BOLTED TO POLE WITH 1/2-INCH GAINS. BLOCK NOT REQUIRED FOR SCHEDULE 40 PVC PLASTIC CONDUIT RUNS. H EXTEND PROTECTIVE COVERING OVER METALLIC CONDUIT TO BOTTOM OF SERVICE HEADS. DO NOT LEAVE CONDUITS EXPOSED.

J INSTALL STRAPS BELOW FIBER CONDUITS TO PREVENT SLIPPING. K SERVICE GROUND TO COMPLY TO CALIFORNIA ELECTRIC CODE AND BE MECHANICALLY PROTECTED IN COMPLIANCE WITH G.O. 95 PER ONE OF THE FOLLOWING METHODS: 1. ENCASED IN RIGID STEEL CONDUIT. 2. MINIMUM NO. 8 AWG ARMORED COPPER GROUND WIRE. 3. COVERED BY A MINIMUM OF:  HARDWOOD MOULDING (OF OAK OR ROCK ELM) 3/8-INCH IN THICKNESS, OR  DOUGLAS FIR MOULDING 1/2-INCH IN THICKNESS, OR  RIGID CONDUIT OR RIGID U-SHAPED MOULDING OF A MINIMUM SCHEDULE 40 PVC. L WHEN CUSTOMER’S LOAD CONDUCTORS ARE UNDERGROUND, INSTALL CONDUIT AS INDICATED BY DASHED LINES. M COVERING TO BE STRAPPED TO POLE WITH GALVANIZED TWO-HOLE PIPE STRAPS SPACED NOT TO EXCEED 3 FEET APART. N COVER TO BE NAILED TO THE SIDE PIECES. BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS HOLDER, WIRE 1 AS REQ’D -- -- -- RACK, SERVICE TIMBER, SELF-SUPPORTING, 6" X 6" X 20'-0” 2 POLE, ROUND, 20’ 1 -- -- -- POLE, SELF-SUPPORTING, METER, 20’-0” 3 CONDUCTOR, LOAD, CUSTOMER-OWNED AS REQ’D -- -- -- 4 WOOD BLOCK, 4" X 4" X 6" AS REQ’D -- -- --

CONDUIT, PVC, SCHEDULE 40, PLASTIC (SERVICE ENTRANCE – PREFERRED) 5 AS REQ’D -- -- -- CONDUIT, IRON, RIGID, GALV. 3/4" MIN. (SERVICE ENTRANCE – ALTERNATE) © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A NO CHANGES-REAFFIRMED -- JC TPM MDJ 08/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG205.2 2 OF 4 CUSTOMER-OWNED SERVICE & METER POLE TEMPORARY/NON-CLIMBABLE, 0 – 600V

BILL OF MATERIALS (CONT’D): STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 6 STRAP, PIPE AS REQ’D -- -- -- 7 METER AS REQ’D -- -- -- 8 SAFETY SOCKET CAN WITH BYPASS TEST FACILITIES AS REQ’D -- -- -- 9 BOXES AND RECEPTACLES, WEATHERPROOF AS REQ’D -- -- -- 10 SERVICE GROUND AS REQ’D -- -- -- NOTES: I THESE ARE MINIMUM REQUIREMENTS FOR ALL TEMPORARY SERVICES. TEMPORARY SERVICE IS FOR A PERIOD OF ONE YEAR, OR LESS. II POLE LOCATION: a. MAXIMUM LENGTH OF SERVICE DROP SHALL BE 100 FEET. POLE SHALL BE SET NOT MORE THAN 100 FEET, NOR LESS THAN 10 FEET, FROM THE SURFACE OF SDG&E’S SERVICE POLE AND SO LOCATED THAT ALL REQUIRED SERVICE DROP CLEARANCES WILL BE OBTAINED FROM GROUND, BUILDINGS, STRUCTURES, AND OTHER CONDUCTORS ON SDG&E’S POLE INCLUDING FOREIGN COMMUNICATION AND SUPPLY CONDUCTORS. IT ALSO MUST BE LOCATED WITHIN A 20- FOOT RADIUS FROM A ROAD OR OTHER DRIVABLE SURFACE SO SDG&E CAN CONNECT AND MAINTAIN THE SERVICE DROP FROM A BUCKET TRUCK. IN SELECTING THE POLE LOCATION, CONSIDERATION SHOULD BE GIVEN TO PROVIDING ADEQUATE CLEARANCE IN AREAS WHERE:

 CONSTRUCTION EQUIPMENT WILL BE OPERATED.  CHANGES IN GRADE OF STREETS, DRIVEWAY, AND OTHER LANDS ARE PROPOSED.  BUILDINGS OR STRUCTURES ARE PROPOSED TO BE ADDED DURING THE PERIOD OF PERMANENT OR TEMPORARY SERVICE. b. ADEQUATE CLEARANCE SHALL BE PROVIDED, WHETHER OR NOT SUCH AREAS OF CONFLICT OR OBSTRUCTION ARE ON THE PREMISES SERVED. c. CONTACT SDG&E AT ANY REGIONAL PROJECT MANAGEMENT OFFICE AND REQUEST AN ELECTRIC METER & SERVICE LOCATION FORM. b III SERVICE DROP MINIMUM CLEARANCES: TABLE 1 SERVICES DROP MINIMUM CLEARANCES LOCATION MIN. CLEARANCE (FT) AT CENTER OF STREET OR 12’-0” FROM CURB, WHICHEVER IS LESS 18 AT CURB LINE 16 OVER COMMERCIAL OR INDUSTRIAL DRIVEWAYS, PARKING AREAS OR AREAS 16 CAPABLE OF BEING TRAVERSED BY VEHICLES OVER RESIDENTIAL DRIVEWAYS 12 IV OVER AGRICULTURAL AREAS 15 OVER RAILROADS OR FOR OTHER SPECIAL CONDITIONS CONSULT YOUR SDG&E PROJECT PLANNER IV MAY BE REDUCED TO 10 FEET IF SELF-SUPPORTING CABLE (SSC) SERVICE. SERVICE DROP CABLE (SSC) SHALL BE USED BY SDG&E. THE TYPE OF CONSTRUCTION USED BY THE CUSTOMER IS THEIR OPTION.

V WHERE CLEARANCES CANNOT BE OBTAINED WITH THE 20-FOOT POLE SHOWN, A PERMANENT/CLIMBABLE POLE IS REQUIRED. © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A NO CHANGES-REAFFIRMED -- JC TPM MDJ 08/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG205.3 3 OF 4 CUSTOMER-OWNED SERVICE & METER POLE TEMPORARY/NON-CLIMBABLE, 0 – 600V

NOTES (CONT’D.): VI ALL CONDUIT FITTINGS MUST BE RAINTIGHT. APPROVED WIRE, NOT LESS THAN NO. 8 AWG, SHALL BE USED IN THE SERVICE ENTRANCE CONDUIT. SEE FIGURE 2 FOR RIGID IRON PROTECTIVE COVERING. VII FURNISHED & INSTALLED BY SDG&E. VIII SAFETY SOCKET CAN WITH TEST-BYPASS FACILITIES IS REQUIRED WHEN POLE IS TO BE USED FOR TEMPORARY/ CONSTRUCTION POWER. SERVICE EQUIPMENT AND RECEPTACLES MUST BE RAINTIGHT, PROPERLY RATED FOR THE LOAD TO BE SERVED, AND SHALL BE ADEQUATELY BONDED AND GROUNDED. IX RECEPTACLES USED TO CONNECT PORTABLE TOOLS SHALL BE 3-POLE TYPE FOR SINGLE-PHASE MOTORS AND 4-POLE TYPE FOR THREE-PHASE MOTORS, ONE CONTACT TO BE USED FOR GROUNDING CONNECTION. WHERE MORE THAN ONE VOLTAGE TYPE IS USED, RECEPTACLES SHALL BE NON-INTERCHANGEABLE. XI. PERMIT AND INSPECTION MUST BE OBTAINED FROM THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) BEFORE SERVICE WILL BE CONNECTED AND A METER SET BY SDG&E. XII. CONSULT SDG&E FOR SERVICE REQUIREMENTS WHENEVER THREE-PHASE SERVICE IS DESIRED. XIII.

FLOOD LIGHTS, SIGNS, ROPES AND ANY SIMILAR EQUIPMENT SHALL NOT BE ATTACHED TO SERVICE AND METER POLES. XIV. COVERING OF METALLIC CONDUIT WILL NOT BE REQUIRED ON METAL POLES, PROVIDED THE METAL POLE IS EFFECTIVELY GROUNDED AND PROVIDED ALL METALLIC CONDUITS ARE ADEQUATELY BONDED TO THE METAL POLE WITH APPROVED CLAMPS OR CONNECTORS. XV ALL METER POLES MUST HAVE THE NUMERIC PORTION OF THE STREET ADDRESS FIRMLY ATTACHED AND FACING THE STREET OR DRIVABLE SURFACE. PLASTIC OR METALLIC NUMBERS OF THE TYPE USED FOR HOUSE ADDRESSES ARE ACCEPTABLE. XVI. A TELEPHONE AND/OR CABLE TV SERVICE DROP MAY ATTACH TO A METER POLE PROVIDED: a. THE ATTACHMENT IS OUTSIDE THE CLIMBING SPACE, b. A MINIMUM RADIAL CLEARANCE OF 12 INCHES IS MAINTAINED FROM ANY PORTION OF THE DRIP LOOP, AND c. IT MEETS ALL G.O. 95 REQUIREMENTS. XVII. REQUIRED WORKING SPACE IN FRONT OF THE METER PANEL: A MINIMUM 3-FOOT BY 3-FOOT CLEAR AND LEVEL WORKING SPACE IS REQUIRED IN FRONT OF THE METER PANEL MEASURED FROM FACE OF PANEL. XVIII.

TO MAINTAIN SAFE, CLEAR AND LEVEL WORKING SPACE IN FRONT OF NEW OR EXISTING NON-RESIDENTIAL METER AND SERVICE EQUIPMENT, A CONCRETE SLAB IS REQUIRED FOR THE FULL WORKING SPACE. c XIX SELF-SUPPORTING METER POLE SHALL MEET EQUIVALENT STRENGTH REQUIREMENTS. REFERENCE: a. REFER TO OH646 TEMPORARY SERVICE AND METER POLES. b REFER TO SG021. c REFER TO SG504.5. © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A NO CHANGES-REAFFIRMED -- JC TPM MDJ 08/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG205.4 4 OF 4 CUSTOMER-OWNED SERVICE & METER POLE TEMPORARY/NON-CLIMBABLE, 0 – 600V

SCOPE: THIS SERVICE GUIDE DESCRIBES PERMANENT OR TEMPORARY INSTALLATION OF CUSTOMER-OWNED SERVICE OR METER POLE WITH MULTIPLE METERS. 2 b 1 IV a 3 5 5 4 6 6 6’-3” MAX. 4’-0” MIN. 7 V STANDING SURFACE FIGURE 1 INSTALLATION: NONE BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 LINE GUTTER, SEALABLE AS REQ'D -- -- -- 2 POLE, SERVICE & METER, APPROVED AS REQ'D -- -- -- 3 BACKBOARD, PLYWOOD, EXTERIOR GRADE, 3/4" MIN AS REQ'D -- -- -- 4 THRU BOLT, NUT & BOLT ASSY, 1/2" (TYP) AS REQ'D -- -- -- 5 METER AS REQ'D -- -- -- 6 METER SERVICE DISCONNECTS AS REQ'D -- -- -- 7 TREATED WOOD, 4" X 4" AS REQ'D -- -- -- © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A NO CHANGES-REAFFIRMED -- JC TPM MDJ 08/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET CUSTOMER-OWNED SERVICE & METER POLE SG206.1 1 OF 2 WITH MULTIPLE METERS PERMANENT OR TEMPORARY INSTALLATION

NOTES: I. A LINE GUTTER IS REQUIRED WHEN SERVING FOUR OR MORE METERS. A SECOND RISER FOR TWO METERS, OR A THIRD RISER FOR THREE METERS, MAY BE INSTALLED IN PLACE OF A LINE GUTTER. VERIFY METHOD OF INSTALLATION WITH THE SDG&E PLANNER AND THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) PRIOR TO START OF CONSTRUCTION. II. THIS APPLICATION IS LIMITED TO A SINGLE-PHASE OR THREE-PHASE SERVICE, 600 AMPS MAXIMUM. A MAIN SWITCH IS REQUIRED AHEAD OF MORE THAN 6 METER SERVICE DISCONNECTS. THERE IS NO LIMIT TO THE NUMBER OF METERS THAT CAN BE INSTALLED PER THIS STANDARD. III. WHEN THE INSTALLATION IS PERMANENT, NO RISERS, WIRE, OR EQUIPMENT ARE PERMITTED ON THE REAR HALF OF THE METER POLE IN ORDER TO PROVIDE THE LEGALLY REQUIRED CLIMBING SPACE. IV BUS DUCT OR CABLE MAY BE USED FOR SERVICE ENTRANCE CONDUCTORS IN LINE GUTTER. V DISTANCE BETWEEN POLE AND POST AS REQUIRED. REFERENCE: a REFER TO SG503 FOR SEALING REQUIREMENTS. b REFER TO SG204 OR SG205, WHICHEVER IS APPLICABLE. © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A NO CHANGES-REAFFIRMED -- JC TPM MDJ 08/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET CUSTOMER-OWNED SERVICE & METER POLE SG206.2 2 OF 2 WITH MULTIPLE METERS PERMANENT OR TEMPORARY INSTALLATION

SCOPE: THIS SERVICE GUIDE DESCRIBES THE INSTALLATION OF CUSTOMER OWNED PERMANENT OR TEMPORARY UNDERGROUND SERVICE WITH MULTIPLE METERS. 1 7 2 3 a 6’-3” MAX. 4 6 b 4’-0” MIN. 5 FINISH GRADE FIGURE 1 INSTALLATION: NONE BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 PLYWOOD BACKBOARD, EXTERIOR GRADE, 3/4" MIN. AS REQ'D -- -- -- 2 THRU BOLT, NUT & BOLT ASSY, 1/2" (TYP) AS REQ'D -- -- -- 3 PULL CAN AS REQ'D -- -- -- 4 STRAP, PIPE AS REQ'D -- -- -- 5 WOOD, TREATED, 4" X 4" AS REQ'D -- -- -- 6 CONDUIT, PVC, SCHEDULE 80 AS REQ'D -- -- -- 7 METER AS REQ'D -- -- -- NOTES: I. CUSTOMER SHALL FURNISH, INSTALL, OWN AND MAINTAIN AT THEIR EXPENSE: a. POST, TERMINATING AND METER ENCLOSURE, TRENCH, CONDUIT AND CONDUIT RISER TO SDG&E’S EQUIPMENT, OR AS DIRECTED BY THE SDG&E INSPECTOR. b. PROVIDE SHADE MATERIAL AND BACKFILL TO FINISHED GRADE AFTER CONDUIT HAS BEEN INSTALLED, INSPECTED, AND APPROVED BY THE SDG&E INSPECTOR. REFERENCE: a REFER TO SECTION 700; ELECTRIC TERMINATING ENCLOSURES.

b REFER TO SG309; UNDERGROUND ELECTRIC SERVICE LATERAL CONDUIT REQUIREMENTS. © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A NO CHANGES-REAFFIRMED -- JC TPM MDJ 08/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG207.1 1 OF 1 CUSTOMER-OWNED SERVICE WITH MULTIPLE METERS FOR UNDERGROUND PERMANENT OR TEMPORARY INSTALLATION

SCOPE: THIS SERVICE GUIDE DESCRIBES THE INSTALLATION OF TEMPORARY SERVICE FROM SDG&E HANDHOLES TO CUSTOMER- OWNED SERVICE AND METERS. A1 1 7 II 8 2 3 c 6’-3” MAX. 4’-0” MIN. 5 6 2 FINISH GRADE A2 2’-0” MIN. 6’-0” MIN. 4 I B1 FIGURE 1 INSTALLATION: A. CUSTOMER SHALL FURNISH, INSTALL, OWN AND MAINTAIN AT THEIR EXPENSE: 1 POST, TERMINATING AND METER ENCLOSURE, TRENCH, CONDUIT AND CONDUIT RISER TO SDG&E’S SECONDARY HANDHOLE AS ILLUSTRATED ABOVE. 2 PROVIDE SHADE MATERIAL AND BACKFILL TO FINISHED GRADE AFTER CONDUIT HAS BEEN INSTALLED, INSPECTED AND APPROVED BY SDG&E’S INSPECTOR. B. SDG&E WILL FURNISH AND INSTALL AT CUSTOMER’S EXPENSE: 1 SERVICE LATERAL CONDUCTORS FROM CUSTOMER’S METER PANEL ON POST TO SDG&E’S SECONDARY HANDHOLE AND REMOVE SERVICE LATERAL CONDUCTORS AT DISCONTINUANCE OF SERVICE. C. SERVICE AND METER INSTALLATION SHALL COMPLY WITH LOCAL CODES AND STATE OF CALIFORNIA DIVISION OF INDUSTRIAL SAFETY REGULATIONS, AND SHALL BE SUBJECT TO INSPECTION CLEARANCE BY THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). © 1998 - 2020 San Diego Gas & Electric Company.

All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A EDITORIAL CHANGES -- JC BRB MDJ 08/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG208.1 1 OF 2 TEMPORARY SERVICE FROM SDG&E HANDHOLE TO CUSTOMER- OWNED SERVICE & METER INSTALLATION

BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 POST, 4" X 4" MIN. AS REQ'D -- -- -- 2 STRAP, PIPE AS REQ'D -- -- -- 3 SERVICE GROUND AS REQ'D -- -- -- 4 CONDUIT, BEND AND RISERS AS REQ'D -- -- -- 5 CONDUCTOR, LOAD, CUSTOMER OWNED AS REQ'D -- -- -- 6 HANDHOLE, SECONDARY, SDG&E OWNED AS REQ'D -- -- -- 7 SAFETY SOCKET CAN WITH TEST-BYPASS FACILITIES AS REQ'D -- -- -- 8 MAIN AS REQ'D -- -- -- NOTES: I FOR SINGLE-PHASE, 2" CONDUIT WITH 2'-0" MIN. RADIUS REQUIRED. FOR THREE-PHASE, 3" CONDUIT WITH 3'-0" RADIUS REQUIRED. a II REQUIRED FOR ALL TEMPORARY SERVICE UP TO 200A. b III. SERVICE METHOD SHOWN IS FOR A MAXIMUM OF 200A. FOR GREATER CAPACITY, CONTACT THE SDG&E PLANNER. IV. CONTACT THE PLANNER AT THE NEAREST SDG&E REGIONAL PROJECT MANAGEMENT OFFICE FOR AN ELECTRIC METER AND SERVICE LOCATION FORM AND NEGOTIATION OF TEMPORARY SERVICE CHARGES. d V. WHERE THE CUSTOMER PROPOSES TO EXTEND TEMPORARY OVERHEAD CONDUCTORS VIA CUSTOMER-OWNED LINES, A 6” X 6” X 20’-0” MINIMUM SELF-SUPPORTING POLE SHALL BE SUBSTITUTED FOR THE 4” X 4” MINIMUM POST SHOWN.

REFERENCE: a REFER TO SG309 NOTE C. b REFER TO SG210 FOR TSPB AND SG513.1 FOR TSPB EXCEPTION. c SERVICE GROUND TO COMPLY WITH CALIFORNIA ELECTRICAL CODE. d REFER TO SG021. © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A EDITORIAL CHANGES -- JC BRB MDJ 8/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG208.2 2 OF 2 TEMPORARY SERVICE FROM SDG&E HANDHOLE TO CUSTOMER- OWNED SERVICE & METER INSTALLATION

SCOPE: THIS SERVICE GUIDE DESCRIBES INSTALLATION OF TEMPORARY SERVICE FROM AN SDG&E POLE OR PADMOUNT TRANSFORMER TO CUSTOMER-OWNED SERVICE AND METER. D A1 1 A2 11 11 I 2 10 FRONT 3 FIGURE 1 6’-3” MAX. PLAN VIEW 4’-0” MIN. 4 a 5 6 7 8 FINISH GRADE FRONT A2 6’-0” MIN. 2’-0” MIN. B1 9 E FIGURE 1 SIDE ELEVATION INSTALLATION: A. CUSTOMER SHALL FURNISH, INSTALL, OWN AND MAINTAIN AT THEIR EXPENSE: 1 POST, SAFETY SOCKET METER CAN, TRENCH, CONDUIT AND CONDUIT RISER AS ILLUSTRATED ABOVE. 2 SHADING MATERIAL AND BACKFILL TO FINISHED GRADE AFTER CONDUIT HAS BEEN INSTALLED, INSPECTED AND APPROVED BY SDG&E’S INSPECTOR. B. SDG&E WILL FURNISH AND INSTALL AT CUSTOMER’S EXPENSE: 1 SERVICE LATERAL CONDUCTORS FROM CUSTOMER’S METER PANEL ON POST TO SDG&E’S POLE OR PADMOUNT TRANSFORMER. SDG&E WILL REMOVE SERVICE LATERAL CONDUCTORS AT DISCONTINUANCE OF SERVICE. C. THE SERVICE AND METER INSTALLATION SHALL COMPLY WITH LOCAL CODES AND STATE OF CALIFORNIA DIVISION OF INDUSTRIAL SAFETY REGULATIONS, AND SHALL BE SUBJECT TO INSPECTION CLEARANCE BY THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ).

© 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A EDITORIAL CHANGES -- JC BRB MDJ 08/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET TEMPORARY SERVICE FROM SDG&E POLE OR PADMOUNT SG209.1 1 OF 2 TRANSFORMER TO CUSTOMER-OWNED SERVICE & METER INSTALLATION

D ALTERNATE DIRECTION OF SERVICE TRENCH. TERMINATE TRENCH AT LOCATION THAT WILL PERMIT SERVICE TO ENTER SIDE OF SECONDARY COMPARTMENT. E 24-INCH MINIMUM RADIUS BEND REQUIRED. BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 POST, 4" X 4" MIN. AS REQ'D -- -- -- 2 DEADFRONT SINGLE-PHASE PADMOUNT TRANSFORMER SECONDARY AREA AS REQ'D -- -- -- 3 LIVEFRONT OR THREE-PHASE PADMOUNT TRANSFORMER SECONDARY AREA AS REQ'D -- -- -- 4 SERVICE GROUND AS REQ'D -- -- -- 5 COMPARTMENT, SECONDARY AS REQ'D -- -- -- 6 PADMOUNT TRANSFORMER OR POLE, SDG&E-OWNED AS REQ'D -- -- -- 7 CONDUCTOR, LOAD, CUSTOMER-OWNED AS REQ'D -- -- -- 8 STRAP, PIPE AS REQ'D -- -- -- 9 CONDUIT, 2", BEND AND RISER AS REQ'D -- -- -- 10 MAIN 1 -- -- -- 11 SAFETY SOCKET CAN WITH TEST BY-PASS FACILITIES AS REQ'D -- -- -- NOTES: I SAFETY SOCKET CAN WITH TEST BY-PASS FACILITIES REQUIRED FOR ALL TEMPORARY SERVICES. II. THE SERVICE METHOD SHOWN IS FOR A MAXIMUM OF 200 AMPS. FOR GREATER CAPACITY, CONTACT THE SDG&E PLANNER. III.

WHERE THE CUSTOMER PROPOSES TO EXTEND TEMPORARY OVERHEAD CONDUCTORS VIA CUSTOMER-OWNED LINES, A 6-INCH X 6-INCH X 20-FOOT MINIMUM SELF-SUPPORTING POLE SHALL BE SUBSTITUTED FOR THE 4-INCH X 4-INCH MINIMUM POST SHOWN. IV. CONTACT THE PLANNER AT THE NEAREST SDG&E REGIONAL PROJECT MANAGEMENT OFFICE FOR AN ELECTRIC METER AND SERVICE LOCATION FORM AND NEGOTIATION OF TEMPORARY SERVICE CHARGES. b REFERENCE: a SERVICE GROUND TO COMPLY WITH CALIFORNIA ELECTRICAL CODE. b REFER TO SG021. c. WHEN SERVICE IS PROVIDED FROM AN OVERHEAD POLE, SEE SG315 FOR CABLE POLE RISER INSTALLATION. © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A EDITORIAL CHANGES -- JC BRB MDJ 08/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET TEMPORARY SERVICE FROM SDG&E POLE OR PADMOUNT SG209.2

2 OF 2 TRANSFORMER TO CUSTOMER-OWNED SERVICE & METER INSTALLATION

SCOPE: THIS STANDARD DESCRIBES THE INSTALLATION OF TEMPORARY SERVICE TO PERMANENT SERVICE & METERING EQUIPMENT (TSPB). a 6’-3” MAX. 4’-0” MIN. 3 1 II FINISH GRADE 2 b FIGURE 1 TSPB (TEMPORARY SERVICE PERMANENT BASE) © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A NO CHANGES-REAFFIRMED -- JC BRB MDJ 08/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG210.1 1 OF 2 TEMPORARY SERVICE TO PERMANENT SERVICE & METERING EQUIPMENT (TSPB)

INSTALLATION: A. FOUNDATION TO BE INSTALLED PRIOR TO SERVICE CONNECTION AND METER SET. B. THE TERMINATING ENCLOSURE SHALL BE MOUNTED ON PERMANENT STUDDING OR ON TEMPORARY 2” X 4” SUPPORTING STRUCTURE. BRACES SHOWN, AND ANY ADDITIONAL BRACES, SHALL BE PROVIDED AS NECESSARY TO SUBSTANTIALLY SUPPORT THE PERMANENT FACILITIES. SERVICE CONNECTION AND METER SET IS SUBJECT TO THE AHJ’S (AUTHORITIES HAVING JURISDICTION) AND SDG&E’S APPROVAL OF THE SUITABILITY OF THE SUPPORTING STRUCTURE AND BRACING. C. SERVICE LATERAL CONDUIT TO BE CONNECTED TO TERMINATING ENCLOSURE WITH HUB OR SUPPORTED WITH REINFORCEMENT PLATE TO PREVENT BREAK AWAY OF KNOCKOUT RINGS. D. BONDING AND GROUNDING PROVISIONS SHALL BE INSTALLED PRIOR TO INSTALLATION OF UNDERGROUND SERVICE LATERAL CONDUCTORS. c BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 FOUNDATION AREA AS REQ’D -- -- -- 2 CONDUIT, SERVICE, PERMANENT AS REQ’D -- -- -- 3 SILL AS REQ’D -- -- -- NOTES: I. RESIDENTIAL METER PANEL IS ACCEPTABLE FOR USE IN TSPB APPLICATIONS. II VARIABLE FOUNDATION DETAILS NOT SHOWN. III.

THIS INSTALLATION IS SUBJECT TO THE APPROVAL OF THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). IV. TEMPORARY SERVICE SUPPLIED IN ACCORDANCE WITH THIS STANDARD IS SUBJECT TO THE CONTINUING APPROVAL OF THE AHJ THROUGHOUT THE BUILDING CONSTRUCTION PERIOD. V. USE OF THIS SERVICE IS NOT INTENDED FOR DWELLING OR COMMERCIAL PURPOSES PRIOR TO FINAL INSPECTION CLEARANCE. SERVICE IS SUBJECT TO DISCONNECTION AND METER REMOVAL IF USED FOR OTHER THAN TEMPORARY CONSTRUCTION POWER. VI. THE UTILITY WILL FURNISH AND INSTALL THE SERVICE LATERAL CONDUCTORS AND CONNECT DIRECTLY TO THE LANDING LUGS. VII. CONTACT THE PLANNER AT THE NEAREST SDG&E REGIONAL PROJECT MANAGEMENT OFFICE TO THE JOB LOCATION FOR AN ELECTRIC METER AND SERVICE LOCATION FORM. d VIII. TEMPORARY SERVICE ON A PERMANENT BASE (TSPB) IS NOT PERMITTED WHEN THE METER PANEL IS TO BE LOCATED IN A METER CABINET, METER ROOM OR NON-RESIDENTIAL INSTALLATIONS. REFERENCE: a SEE SECTION 500 FOR APPROVED COMBINATION PULL AND METER CANS. b REFER TO SG309 FOR CUSTOMER-OWNED RIGID SERVICE CONDUIT REQUIREMENTS.

c REFER TO CALIFORNIA ELECTRICAL CODE. d SEE SG021. e. FOR TRENCH INFORMATION, SEE UG3370 FOR SAN DIEGO COUNTY AND UG3371 FOR ORANGE COUNTY. © 1998 - 2020 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK -- -- 12/07/2020 F B EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 E A NO CHANGES-REAFFIRMED -- JC BRB MDJ 08/06/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG210.2 2 OF 2 TEMPORARY SERVICE TO PERMANENT SERVICE & METERING EQUIPMENT (TSPB)

PAGE # SUBJECT 302 ALPHABETICAL SUBJECT INDEX 303 CUSTOMER AND UTILITY RESPONSIBILITIES FOR UNDERGROUND INSTALLATION TO REPLACE OVERHEAD ELECTRIC SERVICE 304 ACCEPTABLE METHODS FOR RESIDENTIAL ELECTRIC SERVICE CONVERSION 305 OVERHEAD TO UNDERGROUND SERVICE CONVERSION – CONTRACTOR AND SDG&E CREW COORDINATION METHODS 306 FIELD HEATING SERVICE LATERAL CONDUITS 307 SAFETY OVERFLOW FITTING FOR INDOOR USE ONLY ON WALL-MOUNTED SERVICE EQUIPMENT 309 UNDERGROUND ELECTRIC SERVICE LATERAL CONDUIT REQUIREMENTS 310 UNDERGROUND SERVICE FROM OVERHEAD FACILITIES (LOW VOLTAGE) 311 PRIMARY AND SECONDARY VOLTAGE UNDERGROUND SYSTEM ON CUSTOMER PREMISES FROM CABLE POLE 312 CUSTOMER-OWNED CONDUIT BEND AND RISER AT BUILDING 313 STANDARD JOINT CABLE POLE RISER POSITION USING LADDER ARM BRACKE AND SINGLE RISER 314 CABLE POLE QUADRANT AND RISER IDENTIFICATION 315 UNDERGROUND ELECTRIC CABLE POLE RISER INSTALLATION 316 UNDERGROUND ELECTRIC SERVICE LATERAL GASOLINE DISPENSING AND SERVICE STATIONS 317 UNDERGROUND ELECTRIC SERVICE LATERAL AND METER PANELS IN PROXIMITY TO PROPANE TANKS

318 UNDERGROUND ELECTRIC SERVICE NEAR GASOLINE DISPENSING EQUIPMENT AND PROPANE TANKS 319 UNDERGROUND ELECTRIC SERVICE LATERAL FROM LEACH FIELDS 320 EXISTING SIDA SERVICE FOR PANEL REWIRES, UPGRADES, AND RELOCATIONS © 1998 – 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C SG308 MOVED TO FMO EDM JIK IPJ CZH 02/08/2021 F B ADDED SG 320 - CSE IPJ CZH 04/13/2020 E A NEW PAGE - LSM LSM TPM 11/01/2017 D FORMATTING EDM JIK - - 07/19/2021 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG301 1 OF 1 UNDERGROUND ELECTRIC SERVICE TABLE OF CONTENTS

SUBJECT PAGE ACCEPTABLE METHODS FOR RESIDENTIAL ELECTRIC SERVICE CONVERSION.............................................................. 304.1 – 304.2 CABLE POLE QUADRANT AND RISER IDENTIFICATION...............................................................................................................314.1 – 314.3 CABLE POLE RISER INSTALLATION...............................................................................................................................................315.1 – 315.5 CABLE POLE RISER POSITION USING LADDER ARM BRACKET AND SINGLE RISER..................................................................313.1 – 313.2 CONDUIT BEND AND RISER AT BUILDING, CUSTOMER-OWNED................................................................................................312.1 – 312.2 CONDUIT SEALING..........................................................................................................................................................................308.1 – 308.2

CONDUIT, SAFETY OVERFLOW FITTING................................................................................................................................... 307 CONVERSIONS............................................................................................................................ 303, 304.1 – 304.2, 305.1 – 305.2 CUSTOMER AND UTILITY RESPONSIBILITIES FOR UNDERGROUND INSTALLATION TO REPLACE OVERHEAD ELECTRIC SERVICE...................................................................................................... 303 CUSTOMER-OWNED CONDUIT BEND AND RISER AT BUILDING.................................................................................................312.1 – 312.2 FIELD HEATING SERVICE LATERAL CONDUITS............................................................................................................................................ 306 GASOLINE DISPENSING AND SERVICE STATIONS, UNDERGROUND ELECTRIC SERVICE LATERAL CLEARANCES......................... 316, 318

LEACH FIELDS, UNDERGROUND ELECTRIC SERVICE LATERAL CLEARANCES............................................................................................ 319 OVERHEAD TO UNDERGROUND SERVICE CONVERSION CONTRACTOR AND SDG&E CREW COORDINATION METHODS............................................................................................................................................................305.1 – 305.2 PRIMARY AND SECONDARY VOLTAGE UNDERGROUND SYSTEM ON CUSTOMER PREMISES FROM CABLE POLE..........................................................................................................................................................................311.1 – 311.2 PROPANE TANKS, UNDERGROUND ELECTRIC SERVICE LATERAL AND METER PANEL CLEARANCES............................................................................................................................................................... 317.1 – 317.2, 318

RESIDENTIAL ELECTRIC SERVICE CONVERSION.........................................................................................................................304.1 – 304.2 SAFETY OVERFLOW FITTING FOR INDOOR USE ONLY ON WALL-MOUNTED SERVICE EQUIPMENT....................................................... 307 STANDARD JOINT CABLE POLE RISER POSITION USING LADDER ARM BRACKET AND SINGLE RISER..................................313.1 – 313.2 UNDERGROUND ELECTRIC CABLE POLE RISER INSTALLATION.................................................................................................315.1 – 315.5 UNDERGROUND ELECTRIC SERVICE LATERAL AND METER PANELS IN PROXIMITY TO PROPANE TANKS.............................317.1 – 317.2 UNDERGROUND ELECTRIC SERVICE LATERAL FROM LEACH FIELDS......................................................................................................... 319 © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE

C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG302.1 1 OF 2 UNDERGROUND ELECTRIC SERVICE ALPHABETICAL SUBJECT INDEX

SUBJECT PAGE UNDERGROUND ELECTRIC SERVICE LATERAL GASOLINE DISPENSING AND SERVICE STATIONS.......................................................... 316 UNDERGROUND ELECTRIC SERVICE LATERAL RESIDENTIAL OR COMMERCIAL.......................................................................309.1 – 309.3 UNDERGROUND ELECTRIC SERVICE NEAR GASOLINE DISPENSING EQUIPMENT AND PROPANE TANKS.............................................. 318 UNDERGROUND PRIMARY SYSTEM FROM CABLE POLE TO PADMOUNT TRANSFORMER.........................................................311.1 – 311.2 UNDERGROUND SERVICE FROM OVERHEAD FACILITIES (LOW VOLTAGE)...............................................................................310.1 – 310.2 © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC STANDARDS & GUIDES SHEET SG302.2 2 OF 2 UNDERGROUND ELECTRIC SERVICE ALPHABETICAL SUBJECT INDEX

SCOPE: THIS STANDARD DESCRIBES CUSTOMER AND UTILITY RESPONSIBILITIES FOR AN UNDERGROUND INSTALLATION TO REPLACE AN OVERHEAD ELECTRIC SERVICE. ATTENTION: ∗ BEFORE STARTING CONSTRUCTION, OBTAIN AN “ELECTRIC METER & SERVICE LOCATION” FORM FROM SDG&E DESIGN & PROJECT MANAGEMENT. APPLY ONLINE ON THE SDG&E BUILDER SERVICES PORTAL AT: https://www.sdge.com/apply-service. A B B PROPERTY LINE C STREET OR H PARKWAY III 2’-0” MIN E F G I D D II FIGURE 1 a INSTALLATION: A TO BE REMOVED BY CUSTOMER. B TO BE REMOVED BY UTILITY. C CONDUIT, ELBOW, PULL CAN OR UTILITY PULL SECTION, AND WIRING ON BUILDING TO BE INSTALLED BY CUSTOMER. D CUSTOMER TO PROVIDE TRENCH, BACKFILL AND PAVEMENT REPAIR. CUSTOMER TO FURNISH, INSTALL, OWN AND MAINTAIN: E CONDUIT AS SPECIFIED BY SDG&E ON THE CONVERSION SERVICE ORDER. F TRENCH PER SDG&E STANDARDS. BACKFILL SHALL BE COMPACTED IN ACCORDANCE WITH SDG&E AND LOCAL GOVERNMENTAL REQUIREMENTS. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 08/31/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 D TABLE UPDATE PS JTM JTM KRG 01/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET CUSTOMER & UTILITY RESPONSIBILITIES SG303.1 1 OF 2 FOR UNDERGROUND INSTALLATION TO REPLACE OVERHEAD ELECTRIC SERVICE

INSTALLATION (CONT’D): TABLE 1: CONDUIT RISER BEND MINIMUM BENDING RADII BEND SIZE RADIUS (IN) (IN) 2 24 3 36 4 36 5 48 G CONDUIT RISER BENDS SIZE AND MINIMUM BENDING RADIUS SHOWN IN TABLE 1. MINIMUM SCHEDULE 40 PVC REQUIRED. DO NOT CUT BENDS. H TYPE & SCHEDULE OF CONDUIT PER THE BUILDING INSPECTOR’S REQUIREMENTS. NORMALLY, SCHEDULE 40 PVC IS ALLOWED INSIDE THE BUILDING WALL, AND SCHEDULE 80 PVC IS REQUIRED WHEN EXPOSED ON AN EXTERIOR WALL. CONSULT WITH THE APPROPRIATE BUILDING INSPECTOR. FLEX CONDUIT IS NOT PERMITTED. b BILL OF MATERIALS: NONE NOTES: I DEPTH OF TRENCH IS DETERMINED BY TYPE OF SUBSTRUCTURE AT SOURCE, VERIFY WITH SDG&E INSPECTOR PRIOR TO EXCAVATION. II CUSTOMER OR UTILITY DEPENDING ON CONVERSION RULE. CONSULT WITH PLANNER. III SOURCE: MANHOLE, HANDHOLE OR PADMOUNT TRANSFORMER. REFERENCE: a SEE SG304 INSTALLATION NOTES A-F FOR CABLE AND CONDUIT RESPONSIBILITIES BETWEEN PROPERTY LINE AND STRUCTURE. b SEE SG306 FOR FIELD HEATING SERVICE LATERAL CONDUIT, AND CONSULT WITH THE SDG&E TRENCH INSPECTOR. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 08/31/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 D TABLE UPDATE PS JTM JTM KRG 01/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET CUSTOMER & UTILITY RESPONSIBILITIES SG303.2 2 OF 2 FOR UNDERGROUND INSTALLATION TO REPLACE OVERHEAD ELECTRIC SERVICE

SCOPE: THIS STANDARD DESCRIBES ACCEPTABLE METHODS FOR RESIDENTIAL ELECTRIC SERVICE CONVERSION. I III DETAIL 2 4 G DETAIL 1 1 FIGURE 1 II FIGURE 2 RISER METER ADAPTER 5 6 TO METER 8” 2 EXISTING 7’-0” MAX. GRADE 2 5/8” MIN. 6” MIN. 9 7/8” 3 5” 1’-4 5/8” 7 ‘5/8” DETAIL 1 4” RISER AND PULL CAN F II DETAIL 2 METER ADAPTER 100A/200A © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG304.1 1 OF 2 ACCEPTABLE METHODS FOR RESIDENTIAL ELECTRIC SERVICE CONVERSION

INSTALLATION: A. THE CUSTOMER WILL PROVIDE A SUITABLE TRENCH FROM THE CONDUIT RISER TO THE PROPERTY LINE, OR SOURCE. CONSULT WITH A PLANNER. a B. THE CUSTOMER WILL PROVIDE AND INSTALL A SUITABLE CONDUIT FROM THE ELBOW TO THE PROPERTY LINE, OR SOURCE. CONSULT WITH A PLANNER. C. THE CUSTOMER WILL PROVIDE AND INSTALL ALL EQUIPMENT NEEDED TO MODIFY THE SERVICE ENTRANCE WHEN CHANGING FROM OVERHEAD TO UNDERGROUND SERVICE. THE CUSTOMER WILL ALSO REMOVE ALL THEIR EXISTING SERVICE EQUIPMENT NO LONGER REQUIRED UPON COMPLETION OF SERVICE CONVERSION TO UNDERGROUND. D. SDG&E (UTILITY) WILL FURNISH AND INSTALL UG SERVICE LATERAL CONDUCTORS AND MAKE CONNECTIONS AT THE SERVICE PULL CAN. E. THE METER ADAPTER SHOWN IN FIGURE 2 IS APPROVED FOR SINGLE-METER RESIDENTIAL EQUIPMENT INSTALLATIONS ONLY. MULTIPLE METER CONVERSIONS WILL REQUIRE USE OF A LINE GUTTER OR MULTIPLE METER SERVICE EQUIPMENT F IF SERVICE ENTRANCE CONDUCTORS ARE ENERGIZED, THE CONTRACTOR IS RESPONSIBLE TO IDENTIFY AS ENERGIZED OR "HOT".

G METER ADAPTER INSTALLATIONS REQUIRE THE RISER TO BE SECURED TO THE WALL WITH A HEAVY DUTY TWO-HOLE PIPE STRAP PLACED 3 INCHES BELOW BOTTOM OF METER ADAPTER WITH 3/8" X 3" LAG SCREWS INTO PLATE. 1/4-INCH TOGGLE BOLTS MAY BE USED IN LIEU OF LAG SCREWS. A ZANAC NAIL HEAD 1/4” X 1 7/8" (MUSHROOM) MAY BE USED IN PLACE OF A LAG SCREW WHEN ATTACHING IT TO A CINDER BLOCK OR CONCRETE WALL. INSTALL CROSS-BRACING (UNISTRUT) AS REQUIRED TO FIT TO WALL STUDS. TIGHTEN THE PIPE STRAP FIRMLY OVER THE RISER TO SECURE IT FROM SHIFTING DOWNWARD AS THE TRENCH SETTLES OVER TIME. H. AN INSPECTION AND RELEASE FROM THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) IS NOT REQUIRED FOR INSTALLATION OF A METER ADAPTER. WHEN THE METER ADAPTER IS INSTALLED, THE ELECTRICAL CONTRACTOR MUST REROUTE THE EXISTING NEUTRAL CONDUCTOR INTO THE METER ADAPTER AND CONNECT TO THE NEUTRAL LUG SUPPLIED BY THE MANUFACTURER. THE UTILITY’S SERVICE CREW WILL CHECK THE NEUTRAL CONNECTIONS IN THE NEW METER ADAPTER AND IN THE EXISTING SERVICE EQUIPMENT FOR TIGHTNESS. BILL OF MATERIALS: STANDARD STOCK DESIGN

ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 RISER, CONDUIT AS REQ’D -- -- -- 2 PULL CAN, UNDERGROUND SERVICE AS REQ’D -- -- -- 3 ELBOW, 90°, 24” MIN. RADIUS AS REQ’D -- -- -- 4 STRAP, PIPE AS REQ’D -- -- -- 5 COVER, GASKETED (SEALABLE) AS REQ’D -- -- -- 6 RING, ADAPTER AS REQ’D -- -- -- 7 HUB, 3” AS REQ’D -- -- -- NOTES: I EXISTING SURFACE-MOUNT METER SOCKET CAN. II CONDUIT RISER SIZE BASED ON SERVICE EQUIPMENT AMPACITY. (2” MIN.) III EXISTING SEMI-FLUSH METER SOCKET. REFERENCE: a SEE UG3370 (SAN DIEGO COUNTY) OR UG3371 (ORANGE COUNTY) FOR TRENCH AND UTILITY POSITIONING DETAILS. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG304.2 2 OF 2 ACCEPTABLE METHODS FOR RESIDENTIAL ELECTRIC SERVICE CONVERSION

SCOPE: THIS STANDARD DESCRIBES THE COORDINATION METHODS WITH CONTRACTORS AND SDG&E CREWS FOR OVERHEAD TO UNDERGROUND SERVICE CONVERSION. 4 III I 1 II IV 7 2 II 6 5 V 8 3 FIGURE 1 A B FIGURE 2 C D E JUNCTION BOX CONNECTION OLD 2-WIRE METER CONNECTION VI 9 K FIGURE 3 F G H J FIGURE 4 F G H J METER ADAPTER CONNECTION METER ADAPTER CONNECTION TYPICAL OVERHEAD SERVICE SAME INSTALLATION AFTER CONVERSION FOR INSTALLATION UNDERGROUND SERVICE USING METER ADAPTER © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET OVERHEAD TO UNDERGROUND SERVICE SG305.1 1 OF 3 CONVERSION – CONTRACTOR & SDG&E CREW COORDINATION METHODS

INSTALLATION: A THE CONTRACTOR COMPLETES INSTALLATION OF UG PULL CAN, UG RISER, RISER, CONDUIT, JUNCTION BOX, WIRE FROM JUNCTION BOX TO PULL CAN, AND CONNECTS TEMPORARY JUMPERS TO SERVICE DROP AND LANDING LUGS. IF THE SERVICE ENTRANCE CONDUCTORS ARE ENERGIZED, THE CONTRACTOR IS TO IDENTIFY THEM AS ENERGIZED OR "HOT". B SDG&E (UTILITY) INSTALLS NEW UG SERVICE LATERAL CONDUCTORS TO THE PULL CAN. ON INSPECTION, THE UTILITY REMOVES TEMPORARY JUMPERS AND THE OH SERVICE DROP, CONNECTS WIRES IN THE PULL CAN, SEALS THE PULL CAN AND JUNCTION BOX, AND RESETS OR RESEALS THE METER AS REQUIRED. C THE CONTRACTOR INSTALLS THE NEW METER PANEL, UG RISER, WIRE AND NIPPLE FROM THE BREAKER PANEL TO THE SERVICE SWITCH. THE NEW CIRCUIT BREAKER IS TO BE LOCKED OR TAPED IN THE OFF POSITION. D THE UTILITY WILL INSTALL UG SERVICE LATERAL CONDUCTORS. ON INSPECTION AND RELEASE BY THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ), THE UTILITY DISCONNECTS THE OH SERVICE AT THE WEATHERHEAD, CONNECTS NEW CONDUCTORS TO THOSE ON THE LOAD-SIDE OF SERVICE SWITCH, CONNECTS THE NEW UG SERVICE, AND SETS THE METER.

E THE CONTRACTOR IS TO FOLLOW UP WITH THE REMOVAL OF THE SERVICE CONDUIT, METER BASE, SERVICE SWITCHBLADES, ETC. F THE METER ADAPTER MAY BE INSTALLED EITHER FOR LEFT OR RIGHT HAND FEED BY SIMPLY REVERSING THE DIRECTION OF INSERTION INTO THE EXISTING METER SOCKET. G ON REQUEST, PERMISSION IS GRANTED BY THE PLANNER FOR THE CONTRACTOR TO BREAK THE METER SEAL, PULL METER AND INSERT IN THE ADAPTER. THE METER ADAPTER IS BUSSED THROUGH SO THE UNIT MAY BE INSERTED INTO THE EXISTING METER SOCKET, THE SCREW TYPE SEALING RING FURNISHED WITH THE UNIT INSTALLED IN THE GROOVE OF THE ADAPTER RING AND OVER THE EXISTING SOCKET RING, AND WHEN SECURELY IN PLACE, THE EXISTING METER INSERTED IN THE ADAPTER WILL OPERATE CORRECTLY STILL CONNECTED TO THE OVERHEAD SERVICE. a H AFTER THE CONTRACTOR INSTALLS THE UNDERGROUND SERVICE LATERAL CONDUIT AND TRENCH, AND THE UTILITY’S INSPECTOR APPROVES, A JOINT MEET WILL BE SCHEDULED AND THE FOLLOWING WORK IS TO BE PERFORMED: 1. UTILITY CREW WILL: PULL THE METER AND INSTALL SERVICE LATERAL CONDUCTORS INTO THE PULL BOX OF THE METER ADAPTER.

CUT OVERHEAD SERVICE AT THE DRIP LOOP. SWING THE METER ADAPTER OUT FROM THE METER SOCKET. 2. CONTRACTOR WILL: PULL ENOUGH NEUTRAL SERVICE ENTRANCE CONDUCTOR DOWN FROM THE SERVICE CONDUIT RISER TO REACH THROUGH THE SLOT IN THE METER SOCKET TO THE NEUTRAL LUG LANDING IN THE PULL BOX OF THE METER ADAPTER (APPROXIMATELY 18 INCHES). REMOVE THE PHASE WIRES FROM THE EXISTING METER SOCKET LINE TERMINALS. 3. UTILITY CREW WILL: RE-INSERT THE METER ADAPTER INTO THE EXISTING METER SOCKET (FEEDING THE NEUTRAL CONDUCTOR THROUGH THE SLOT IN THE ADAPTER RING). 4. CONTRACTOR WILL: CONNECT THE NEUTRAL CONDUCTOR TO THE NEUTRAL TERMINAL IN THE PULL BOX OF THE METER ADAPTER. 5. UTILITY CREW WILL: CONNECT THE UNDERGROUND PHASE WIRES TO THE UPPER TERMINALS OF THE METER ADAPTER SOCKET (NO CONNECTION IS MADE TO THE LOWER TERMINALS). INSERT THE METER IN THE METER ADAPTER AND ENERGIZE UNDERGROUND SERVICE. RESEAL THE METER AND SEAL THE METER ADAPTER. J THE CONVERSION IS COMPLETED WITH THE UTILITY’S REMOVAL OF THE OVERHEAD SERVICE DROP AND THE CONTRACTOR’S

REMOVAL OF THE OVERHEAD SERVICE ENTRANCE CONDUCTORS AND CONDUIT RISER. K THE METER ADAPTER INSTALLATIONS REQUIRE THE RISER TO BE SECURED TO THE WALL WITH A HEAVY DUTY TWO-HOLE PIPE STRAP PLACED 3 INCHES BELOW THE BOTTOM OF THE METER ADAPTER WITH 3/8-INCH X 3-INCH LAG SCREWS INTO THE PLATE. 1/4- INCH TOGGLE BOLTS MAY BE USED IN LIEU OF LAG SCREWS. A ZANAC NAIL HEAD 1/4-INCH X 1 7/8-INCH (MUSHROOM) MAY BE USED IN PLACE OF A LAG SCREW WHEN ATTACHING IT TO A CINDER BLOCK OR CONCRETE WALLS. INSTALL CROSSBRACING (UNISTRUT) AS REQUIRED TO FIT TO THE WALL STUDS. TIGHTEN THE PIPE STRAP FIRMLY OVER THE RISER TO SECURE IT FROM SHIFTING DOWNWARD AS THE TRENCH SETTLES OVER TIME. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET

OVERHEAD TO UNDERGROUND SERVICE SG305.2 2 OF 3 CONVERSION – CONTRACTOR & SDG&E CREW COORDINATION METHODS

BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 CONDUCTORS, SERVICE ENTRANCE, NEW AS REQ’D -- -- -- 2 CAN, PULL AS REQ’D -- -- -- 3 RISER, SERVICE, U.G. AS REQ’D -- -- -- 4 OPEN LOOP AND BOND OR JUNCTION BOX, WITH SEALING SCREWS AS REQ’D -- -- -- 5 CAN, METER SOCKET, FLUSH MOUNTED AS REQ’D -- -- -- CAN, NEW U.G. COMBINATION PULL AND METER, WITH CIRCUIT BREAKER 6 AS REQ’D -- -- -- DISTRIBUTION SECTION 7 SOCKET, METER, OLD AS REQ’D -- -- -- 8 SWITCH, SERVICE AS REQ’D -- -- -- 9 STRAP, PIPE AS REQ’D -- -- -- NOTES: I CONNECTIONS BY CONTRACTOR. II BY CUSTOMER. III SIZED PER CODE AND BONDED TO OLD RISER. IV SDG&E MAY INSTALL TEMPORARY SERVICE DROP CONDUCTORS FOR JOB COORDINATION. V EXISTING. VI PULL BOX AREA OF METER ADAPTER. REFERENCE: a SEE SG304. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET OVERHEAD TO UNDERGROUND SERVICE SG305.3 3 OF 3 CONVERSION – CONTRACTOR & SDG&E CREW COORDINATION METHODS

SCOPE: THIS STANDARD PROVIDES THE REQUIREMENTS AND CONDITIONS ALLOWING FIELD HEATING OF SERVICE LATERAL CONDUITS INSTALLED ABOVE GRADE ONLY. ATTENTION: * THIS STANDARD PROVIDES A MEANS TO AVOID EXCAVATING INTO AN EXISTING BUILDING FOOTING WHEN CONVERTING EXISTING OVERHEAD SERVICES TO UNDERGROUND (SEE FIGURE 1). IT ALSO APPLIES TO EXISTING OR NEW SERVICES WHEN A HORIZONTAL OFFSET IS REQUIRED DUE TO FIELD CONDTIONS (SEE FIGURE 2). ** THIS STANDARD IS NOT INTENDED TO CORRECT POOR WORKMANSHIP. *** CARE SHOULD BE TAKEN TO INSTALL SERVICE EQUIPMENT IN A MANNER ALLOWING THE SERVICE LATERAL CONDUIT RISER TO EXIT THE GROUND AND RUN STRAIGHT UP INTO THE TERMINATING ENCLOSURE EXCEPT WHERE PRE-EXISTING FIELD CONDITIONS EXIST. SEMI-FLUSH OR SURFACE MOUNTED METER PANEL OR TERMINATING ENCLOSURE E E EXISTING A B C A B C BUILDING FOOTING D FINAL GRADE FIGURE 1 FIGURE 2 VERTICAL OFFSET HORIZONTAL OFFSET SIDE VIEW FRONT VIEW INSTALLATION: A THIS STANDARD APPLIES TO 2-INCH, 3-INCH AND 4-INCH CONDUIT SIZES ONLY. B ONLY MANUFACTURER’S RECOGNIZED FIELD CONDUIT HEATING EQUIPMENT SHALL BE USED.

DEGRADATION OF THE CONDUIT’S SHAPE, WRINKLES, DISCOLORATION, BURN MARKS, OR PAINT ARE NOT ALLOWED. SDG&E’S INSPECTOR WILL DETERMINE IF THE HEATED CONDUIT IS ACCEPTABLE. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 08/31/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG306.1 1 OF 2 FIELD HEATING SERVICE LATERAL CONDUITS

INSTALLATION (CONT’D): C 45 DEGREES IS THE MAXIMUM ALLOWABLE DEFLECTION ON THE RISER. THE DEFLECTION IN THE RISER IS INCLUDED IN THE MAXIMUM 270 DEGREE TOTAL DEFLECTION IN THE SERVICE LATERAL CONDUIT RUN. b D WHEN CONVERTING AN EXISTING SERVICE TO UNDERGROUND, MANDREL NEW CONDUIT TO THE TOP OF THE ELBOW EXTENDING TO GRADE PRIOR TO CONNECTING THE RISER CONDUIT. ALLOW ENOUGH PULL ROPE TO EXTENDED THROUGH THE RISER, WITH A MINIMUM 12-INCH TAIL TO BE LEFT IN THE TERMINATING ENCLOSURE. E NEW SERVICES REQUIRE MANDRELING OF ALL NEW CONDUITS, INCLUDING THE CONDUIT RISER. BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: a. REFER TO UG3950. b REFER TO SG309, INSTALLATION ITEM B, FOR ADDITIONAL INFORMATION. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 08/31/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES -- LSM IPJ TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG306.2 2 OF 2 FIELD HEATING SERVICE LATERAL CONDUITS

SCOPE: THIS STANDARD PROVIDES INSTRUCTIONS FOR INSTALLING A SAFETY OVERFLOW FITTING FOR FLUSH OR SEMI-FLUSH MOUNTED SERVICE EQUIPMENT WHERE THE SDG&E SOURCE IS AT A HIGHER ELEVATION THAN THE SERVICE EQUIPMENT. ATTENTION: * THIS FITTING IS RECOMMENDED, BUT NOT REQUIRED BY SDG&E. ** THE PURPOSE OF INSTALLING THIS DEVICE IS THAT IT MAY HELP PREVENT WATER ENTRY INTO THE SERVICE EQUIPMENT. *** THIS FITTING IS FOR INDOOR USE ONLY. K L DETAIL 1 DETAIL 1 H J FIGURE 1 INSTALLATION: A. THIS FITTING IS FOR CONDUITS INSTALLED INSIDE BUILDING WALLS ONLY. USE LISTED ELECTRICAL RIGID PVC SCHEDULE 40 CONDUIT AND FITTINGS FOR EXTENDING THE DRAIN FITTING OUTSIDE THE WALL OR FOUNDATION. IT IS THE INSTALLER’S RESPONSIBILITY TO COMPLY WITH ALL APPLICABLE BUILDING AND ELECTRICAL CODES. B. ASSEMBLE THE DRAIN BY MEANS OF CEMENT THAT IS, OR CONTAINS, A SOLVENT FOR POLYVINYL CHLORIDE. C. ENSURE THE ARROW ON THE 2-INCH FITTING IS POINTING “UP” WHEN INSTALLING. DO NOT CUT OR MODIFY THE SAFETY OVERFLOW FITTING. D.

CLEAN THE SAFETY OVERFLOW FITTING APPROXIMATELY 2 INCHES FROM EACH END THOROUGHLY WITH CLEANING FLUID. LET THE FITTING DRY COMPLETELY. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG307.1 1 OF 2 SAFETY OVERFLOW FITTING FOR INDOOR USE ONLY ON WALL-MOUNTED SERVICE EQUIPMENT

INSTALLATION (CONT’D): E. THE DRAIN MUST BE FULLY INSERTED INTO THE BODY AND EXTENDED IN THE DOWNWARD POSITION. F. AFTER USING THE CEMENT SOLVENT, MAKE A QUARTER TURN AND THEN LET DRY COMPLETELY. G. REPEAT THE CLEANING AND GLUING PROCESS AT EACH JOINT. H EXTEND THE 1-INCH FITTING UNTIL IT IS OUTSIDE THE WALL OR FOUNDATION AT LEAST 1 1/2 INCHES TO 2 INCHES. J AFTER EXTENDING THE CONDUIT OUTSIDE THE WALL OR FOUNDATION, INSTALL A 90-DEGREE ELBOW POINTING DOWN AND A MINIMUM OF 18 INCHES ABOVE GROUND. INSTALL A MESH SCREEN TO PREVENT DIRT OR INSECTS FROM ENTERING CONDUIT. DO NOT CONNECT THE 1-INCH FITTING TO ANY OUTSIDE WATER DRAINS. K USE THE PROPER END COUPLING AND LOCKING NUT INSIDE THE CABLE TERMINATION CAN. L SDG&E CREW WILL SEAL THE SERVICE LATERAL CONDUIT IN THE TERMINATING ENCLOSURE. BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: a. REFER TO UG3960 FOR REQUIREMENTS RELATING TO ELEVATION OF CUSTOMER FACILITIES AND WATER ENTRY PREVENTION. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG307.2 2 OF 2 SAFETY OVERFLOW FITTING FOR INDOOR USE ONLY ON WALL-MOUNTED SERVICE EQUIPMENT

SCOPE: THIS STANDARD PROVIDES INSTRUCTIONS FOR COSTUMER-INSTALLED CONDUIT AND ADDITIONAL REQUIREMENTS FOR A RESIDENTIAL OR COMMERCIAL SERVICE LATERAL. TABLE 1: TABLE 2: CUSTOMER-INSTALLED SERVICE EQUIPMENT, BUS AND ASSOCIATED CONDUITS CONDUIT BENDS SERVICE RISER BEND AND SERVICE LATERAL CONDUIT SIZE MINIMUM FOR 3- OR 4- WIRE RUN CONDUIT RISER BENDING RADIUS B 3 6 7 K BEND SIZE (IN) (IN) 6 7 SERVICE EQUIPMENT OR RESIDENTIAL AND COMMERCIAL AND BUS AMPACITY MULTI-FAMILY SERVICE INDUSTRIAL (AMPS) SERVICE 2 C 24 III III 3 36 QTY. SIZE (IN) QTY. SIZE (IN) 4 36 0 -200 I 1 3 C 1 3 C 5 48 201 – 400 (SINGLE-PHASE) 1 3 IV 1 3 201 – 400 (THREE-PHASE) 1 4 1 4 401 – 800 2 4 V j 2 4 801 – 1,200 3 4 3 5 1,201 – 1,600 3 4 4 5 1,601 – 2,000 4 4 5 5 2,001 – 2,500 5 4 6 5 2,501 – 3,000 4 5 7 5 3,001 – 3,500 5 5 8 5 3,501 – 4,000 7 5 10 5 PROPERTY 8 STREET OR LINE PARKWAY 1 F FINAL GRADE 4 9 5 2’-0” MIN G J L 4 4 2 3 7 10 6 10 H M 6 H 5 H FIGURE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG - F B FORMATTING EDM JIK - - 07/19/2021 E TABLE UPDATE PS JTM JTM KRG 01/03/2024 A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D EDITORIAL CHANGES ARC IPJ IPJ KRG 08/31/2023 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG309.1 1 OF 4 UNDERGROUND ELECTRIC SERVICE LATERAL CONDUIT REQUIREMENTS

TABLE 3: ITEM DESCRIPTION RESPONSIBLE PARTY SDGE WILL FURNISH, 1 SOURCE: MANHOLE, HANDHOLE OR PADMOUNT TRANSFORMER. INSTALL, OWN AND MAINTAIN, SUBJECT TO 2 SERVICE LATERAL CONDUCTORS AND CONNECTORS FROM SDG&E UNDERGROUND DISTRIBUTION SYSTEM ITEM 1 TO CUSTOMER’S INSTALLATION SERVICE TERMINATING FACILITY ITEM 8. SDG&E WILL MAKE CONNECTIONS. CHARGES. A CLEAR ROUTE ON ANY PRIVATE PROPERTY, THAT IS CLEAR OF OBSTRUCTIONS WHICH WOULD INHIBIT THE CONSTRUCTION OF SERVICE FACILITIES. SERVICE LATERAL CONDUIT FROM SOURCE ITEM 1 TO TERMINATING FACILITY ITEM 8. CONDUIT SIZE SHALL BE BASED ON THE NAMEPLATE RATING OF THE SERVICE EQUIPMENT AND DISTANCE FROM TRANSFORMER TO THE TERMINATING FACILITY. CONDUIT MATERIAL FROM ITEM 1 TO ITEM 8 SHALL BE APPROVED NON-METALLIC CONDUIT IN ACCORDANCE WITH UG3373. BETWEEN ITEM 6 AND ITEM 8, THE CONDUIT INSTALLER MUST PROVIDE A 3/4-INCH PULLING AND MEASURING TAPE IN 3 EACH CONDUIT. THE PULLING TAPE MUST BE APPROVED BY SDG&E, HAVE A MINIMUM AVERAGE TENSILE STRENGHT OF 2,500

POUNDS AND BE WOVEN POLYESTER HIGH STRENGTH, CONTINUOUS FILAMENT, PRE-LUBRICATED WITH FOOTAGE MARKING. PULLING TAPE TAILS OF 24 INCHES SHALL BE SECURED AT EACH END OF THE CONDUIT, THE PULLING TAPE SHALL BE PULLED IN BEHIND THE MANDREL. WHEN THE PULLING AND MEASURING TAPE IS INSTALLED, IT SHALL BE ONE CONTINUOUS LENGTH WITHOUT KNOTS FOR THE ACCURATE MEASUREMENT FOR CONDUCTOR INSTALLATION AND THE PULLING OF CONDUCTORS OR WINCH LINES. LEAVE AT LEAST 2 FEET BEYOND EACH END OF CONDUIT RUN. FLEX CONDUIT IS NOT PERMITTED. TRENCH, BACKFILL, PAVEMENT REPAIR, AND STRUCTURES SHALL BE IN ACCORDANCE WITH SDG&E AND THE GOVERNMENTAL 4 AUTHORITY HAVING JURISDICTION (AHJ) REQUIREMENTS. IF THE CUSTOMER INSTALLS A SECONDARY HARDHOLE ON PRIVATE PROPERTY, THE LID SHALL BE MARKED “SDG&E”. THE CUSTOMER IS TO OBTAIN AN EXCAVATION PERMIT FOR TRENCHING IN STREET CUSTOMER SHALL RIGHT-OF-WAY AS REQUIRED BY THE GOVERNMENTAL AHJ. SDG&E INSPECTION IS REQUIRED PRIOR TO SHADING AND BACKFILLING FURNISH, INSTALL, OWN AND MAINTAIN AT THEIR 5 ADAPTER COUPLINGS FOR CONNECTING BENDS TO STRAIGHT CONDUIT. EXPENSE

6 CONDUIT RISER BEND. (SEE TABLE 2) 7 SIZE AND NUMBER OF CONDUIT RUNS TO BE DESIGNATED BY SDG&E. (SEE TABLE 1) 8 SERVICE TERMINATING ENCLOSURE PER SG700. TYPE AND SCHEDULE OF CONDUIT ON OR WITHIN A BUILDING OR STRUCTURE TO BE INSTALLED PER BUILDING INSPECTOR’S REQUIREMENTS AND MUST BE LISTED AND LABELED. NORMALLY SCHEDULE 40 PVC IS ALLOWED INSIDE A BUILDING WALL AND 9 SCHEDULE 80 PVC IS REQUIRED WHEN EXPOSED ON AN EXTERIOR WALL. CONSULT WITH THE APPROPIATE AHJ. FLEX CONDUIT IS NOT PERMITTED. 10 CONDUIT MANUFACTURER AND MATERIAL MUST BE SDG&E-APPROVED, ASBESTOS-CONTAINING MATERIAL (ACM) IS NOT APPROVED. INSTALLATION: A. CONTACT DESIGN & PROJECT MANAGEMENT AT THE NEAREST SDG&E REGIONAL OFFICE CLOSEST TO THE JOB SITE FOR AN ELECTRIC METER & SERVICE LOCATION FORM PRIOR TO THE START OF CONSTRUCTION. SEE SG2. B THE SERVICE LATERAL CONDUIT SPECIFIED IN THE CONDUIT TABLE IS LIMITED TO 150 FEET IN LENGTH, WITH NOT MORE THAN THREE 90 DEGREE HORIZONTAL OR VERTICAL BENDS OR 270 DEGREES TOTAL DEFLECTION THROUGH THE SERVICE RUN. IF GREATER THAN 150 FEET, REFER TO UG4005-UG4007.

PLANNER AND ELECTRIC CONSTRUCTION SUPERVISOR APPROVAL IS REQUIRED IF LIMITATIONS ARE EXCEEDED. C A 3-WIRE, 100A, SINGLE-PHASE SERVICE AND METER PANEL CAN BE SERVED BY A 2-INCH CONDUIT. A 3-WIRE, 200A, OR LESS, SINGLE-PHASE SERVICE AND METER PANEL FOR TEMPORARY CONSTRUCTION POWER CAN BE SERVED BY A 2-INCH CONDUIT. ITEM 3 SHALL BE THE SAME SIZE AND TYPE MATERIAL STOCKED BY SDG&E AS SHOWN ON UG3373. D. ENGINEERS’ AND ARCHITECTS’ PROPOSALS FOR ALL SWITCHBOARDS RATED 801 AMPERES, OR LARGER, SHALL BE SUBMITTED BY THE MANUFACTURER TO THE SDG&E SERVICE STANDARDS SECTION FOR REVIEW AND APPROVAL. REFER TO SG517 FOR FURTHER INFORMATION ON THE MANUFACTURER’S DRAWINGS FOR APPROVAL PROCESS. E. REPLACEMENT OR ENLARGEMENT OF SERVICE LATERAL CONDUITS DUE TO RELOCATION OR INCREASED LOAD WILL BE ACCOMPLISHED BY THE CUSTOMER UNDER THE PROVISIONS OF TABLE 3, ITEMS 3 THROUGH 10. CONSULT WITH THE SDG&E PROJECT PLANNER. F CONDUITS SHALL BE SEALED PER UG3948. e k © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG - F B FORMATTING EDM JIK - - 07/19/2021 E TABLE UPDATE PS JTM JTM KRG 01/03/2025 A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D EDITORIAL CHANGES ARC IPJ IPJ KRG 08/31/2023 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG309.2 2 OF 4 UNDERGROUND ELECTRIC SERVICE LATERAL CONDUIT REQUIREMENTS

INSTALLATION (CONT’D): G A 24-INCH MINUMUM COVER OVER THE CONDUIT IS REQUIRED FOR ALL NORMAL INSTALLATIONS ON PRIVATE PROPERTY AND A 30- INCH MINIMUM COVER IS REQUIRED IN RIGHT-OF-WAY OR PUBLIC PROPERTY. IN ALL INSTALLATIONS WHERE THE MINIMUM COVER CANNOT BE MET, G.O. 128 REQUIRES ONE OF THE FOLLOWING: 1. SCHEDULE 40 PVC OR SCHEDULE 80 PVC CONDUIT WITH A MINIMUM WALL THICKNESS OF 1/8-INCH. 2. AT LEAST A 3-INCH LAYER OF CONCRETE ABOVE (2 SACK 3/8-INCH ROCK) AND 2 INCHES ON EACH SIDE OF THE CONDUIT, REDUCED DEPTHS MUST BE APPROVED BY THE SDG&E’S PROJECT PLANNER AND INSPECTOR. H THE TRENCH MUST HAVE AN EVEN SLOPING GRADE TO ALLOW ROOM FOR A 90-DEGREE BEND INTO THE BOTTOM OF ANY CUSTOMER-OWNED OR SDG&E FACILITY. DO NOT CUT BENDS. THE TRENCH DEPTH IS TO BE DETERMINED AT THE PRECONSTRUCTION MEETING. J WHEN TRENCHING TO AN EXISITING SDG&E FACILITY, THE APPLICANT/CONTRACTOR SHALL COMPLETE THE TRENCH AND INSTALLATION OF CONDUIT UP TO THE EXISTING FACILITY UNLESS IT IS DETERMINED BY AN AUTHORIZED SDG&E EMPLOYEE THAT

SUCH AN INSTALLATION PERFORMED BY THE APPLICANT/CONTRACTOR WOULD EXPOSE WORKERS TO, OR CREATE, A HAZARD. IN THIS CASE, SDG&E WOULD PERFORM TRENCHING AS INDICATED ON THE CONSTRUCTION WORK ORDER. DIGGING UNDER ENERGIZED PAD MOUNTED EQUIPMENT AND INSTALLATION OF CONDUIT INTO ENERGIZED PAD MOUNTED EQUIPMENT WILL ALWAYS BE THE RESPONSIBILITY OF SDG&E. K A SERVICE CONDUIT WILL ONLY BE ALLOWED UNDERNEATH THE BUILDING BEING SERVED BY THE CABLE IN THE CONDUIT. NO CONDUIT IS ALLOWED UNDER ONE BUILDING TO SERVE ANOTHER BUILDING. L DEPTH OF TRENCH IS DETERMINED BY TYPE OF SUBSTRUCTURE AT SOURCE. VERIFY WITH SDG&E INSPECTOR PRIOR TO EXCAVATION. M INSTALL CONDUIT ON EVEN SLOPING GRADE FROM CONDUIT RISER BEND TO SDG&E SOURCE. BILL OF MATERIALS: NONE NOTES: I 225A RESIDENTIAL SERVICE EQUIPMENT. II. AMPACITY RANGE BASED IN 75 DEGREES CELSIUS ALIMINUM WIRE. III THESE ARE MINIMUM REQUIREMENTS. CONDUIT REQUIREMENTS MAY INCREASE WITH DIFFERENT ESTIMATED DEMANDS AND LENGTH OF SERVICE, DUE TO VOLTAGE DROP AND/OR FLICKER (INRUSH CURRENT). FUTURE LOADS SHOULD ALSO BE CONSIDERED.

IV INCLUDES 300A RESIDENTAIL SERVICE EQUIPMENT. i V 2-3-INCH CONDUITS MINIMUM FOR MULTI-FAMILY 600A SERVICES. REFERENCE: a. SEE UG3367 FOR TRENCH PARALLELING FOUNDATIONS. b. SEE UG3372 FOR CONDUIT SIZING AND UG3373 FOR CONDUIT AND FITTINGS. c. SEE UG3376 FOR CONCRETE SLURRY REQUIREMENTS. d. SEE UG3421, UG3425, UG3426 AND UG3427 FOR CONDUIT PLACEMENT. e SEE UG3941 FOR RESIDENTIAL RISER AND CONDUIT AND UG3948 FOR CONDUIT SEALING. f. SEE UG3944 FOR MATERIAL REQUIREMENTS OF AN UG SERVICE FROM OH FACILITIES. g. SEE OH1404, UG4204 FOR CABLE POLE CONDUIT REQUIREMENTS. h. SEE UG3942. i SEE SG512.6 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG - F B FORMATTING EDM JIK - - 07/19/2021 E TABLE UPDATE PS JTM JTM KRG 01/03/2025 A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D EDITORIAL CHANGES ARC IPJ IPJ KRG 08/31/2023 X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG309.3 3 OF 4 UNDERGROUND ELECTRIC SERVICE LATERAL CONDUIT REQUIREMENTS

REFERENCE (CONT’D): j SEE SG707 FOR SPECIAL APPLICATION. k SEE G.O. 128, RULE 31.6. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG - F B FORMATTING EDM JIK - - 07/19/2021 E TABLE UPDATE PS JTM JTM KRG 01/03/2025 A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D EDITORIAL CHANGES ARC IPJ IPJ KRG 08/31/2023 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG309.4 4 OF 4 UNDERGROUND ELECTRIC SERVICE LATERAL CONDUIT REQUIREMENTS

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR INSTALLATION, OWNERSHIP AND MAINTENANCE OF A SINGLE LOW-VOLTAGE UNDERGROUND SERVICE FED FROM OVERHEAD FACILITIES. ATTENTION: * CONTACT THE SDG&E INSPECTOR FOR INSTRUCTIONS ON TRENCHING NEAR THE POLE. ** SDG&E INSPECTION IS REQUIRED PRIOR TO BACKFILLING TRENCH. 3 13 1 4 13 11 STREET OR PARKWAY PROPERTY 2 7 9 8’-0” MIN. 12 LINE 2’-6” MIN. 2’-0” MIN. A 10 13 5 B C 2 6 8 13 B 2 6 8 13 .2 FIGURE1 TABLE 1 ITEM DESCRIPTION RESPONSIBLE PARTY SOURCE POLE AS DESIGNATED BY SDG&E PLANNER. CONTACT PROJECT MANAGEMENT AT THE NEAREST SDG&E REGIONAL OFFICE SDG&E OVERHEAD 1 CLOSEST TO THE JOB SITE FOR AN ELECTRIC METER & SERVICE LOCATION FORM PRIOR TO THE START OF CONSTRUCTION. i DISTRIBUTION SYSTEM SDG&E TO FURNISH, INSTALL, OWN AND SERVICE LATERAL CONDUCTORS AND CONNECTORS 2 MAINTAIN, SUBJECT TO INSTALLATION CHARGES 3 SCHEDULE 40 PVC CONDUIT CUSTOMER TO PROVIDE, SDG&E TO INSTALL, OWN AND 4 SCHEDULE 80 PVC CONDUIT MAINTAIN SCHEDULE 80 PVC CONDUIT BEND. THE LARGER RADIUS AT THE POLES IS NECESSARY TO ALLOW FOR VERTICAL CABLE PULLING 5 TENSION.

(SEE TABLE 2) A CLEAR ROUTE ON ANY PRIVATE PROPERTY, THAT IS CLEAR OF OBSTRUCTIONS WHICH WOULD INHIBIT THE CONSTRUCTION OF 6 SERVICE FACILITIES. SERVICE LATERAL CONDUIT FROM SOURCE (ITEM 1) TO TERMINATING FACILITY (ITEM 11). CONDUIT SIZE SHALL BE BASED ON THE NAMEPLATE RATING OF THE SERVICE EQUIPMENT AND DISTANCE FROM TRANSFORMER TO THE CUSTOMER SHALL TERMINATING FACILITY. FURNISH, INSTALL, SECONDARY HANDHOLE. VERIFY IF IT IS REQUIRED WITH THE SDG&E PLANNER. IF A HANDHOLE IS REQUIRED, THE LID SHALL BE OWN AND MAINTAIN AT 7 MARKED “SDG&E”. THEIR EXPENSE TRENCH, BACKFILL, PAVEMENT REPAIR AND STRUCTURES SHALL BE IN ACCORDANCE WITH SDG&E’S AND THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION’S (AHJ) REQUIREMENTS. SPECIAL NOTE: CONTACT THE SDG&E INSPECTOR FOR INSTRUCTIONS 8 FOR TRENCHING NEAR THE SDG&E POLE. THE CUSTOMER IS TO OBTAIN AN EXCAVATION PERMIT FOR TRENCHING IN THE STREET RIGHT-OF-WAY AS REQUIRED BY THE AHJ. SDG&E INSPECTION IS REQUIRED PRIOR TO SHADING AND BACKFILLING THE TRENCH. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG310.1 1 OF 3 UNDERGROUND SERVICE FROM OVERHEAD FACILITIES (LOW VOLTAGE)

TABLE 1 (CONT’D) ITEM DESCRIPTION RESPONSIBLE PARTY ITEMS 3, 4, 5 AND 6 SHALL BE NON-METALLIC CONDUIT PER UG3373 AND UG4204. BETWEEN ITEM 5 AND ITEM 9 THE CONDUIT INSTALLER SHALL PROVIDE A 3/4-INCH PULLING AND MEASURING TAPE IN EACH CONDUIT. THE PULLING TAPE MUST BE APPROVED BY SDG&E, HAVE A MINIMUM AVERAGE TENSILE STRENGTH OF 2,500 POUNDS AND BE WOVEN POLYESTER HIGH 9 STRENGTH, CONTINUOUS FILAMENT, PRE-LUBRICATED WITH FOOTAGE MARKING. PULLING TAPE TAILS OF 24 INCHES SHALL BE SECURED AT EACH END OF THE CONDUIT. THE PULLING TAPE SHALL BE PULLED IN BEHIND THE MANDREL. WHEN THE PULLING AND MEASURING TAPE IS INSTALLED IT SHALL BE ONE CONTINUOUS LENGTH WITHOUT KNOTS FOR THE ACCURATE MEASUREMENT FOR CONDUCTOR INSTALLATION AND THE PULLING OF CONDUCTORS OR WINCH LINES. LEAVE AT LEAST 2 FEET CUSTOMER SHALL BEYOND EACH END OF THE CONDUIT RUN. FLEX CONDUIT IS NOT PERMITTED. FURNISH, INSTALL, 10 CONDUIT RISER BEND. j OWN AND MAINTAIN AT THEIR EXPENSE 11 SERVICE TERMINATING ENCLOSURE PER SECTION 700 REQUIREMENTS.

TYPE AND SCHEDULE OF CONDUIT ON OR WITHIN A BUILDING OR STRUCTURE SHALL BE INSTALLED PER THE AHJ’S 12 REQUIREMENTS AND MUST BE LISTED AND LABELED. NORMALLY SCHEDULE 40 PVC IS ALLOWED INSIDE A BUILDING WALL AND SCHEDULE 80 PVC IS REQUIRED WHEN EXPOSED ON AN EXTERIOR WALL. CONSULT WITH THE APPROPRIATE AHJ. FLEX CONDUIT IS NOT PERMITTED. 13 CONDUIT MANUFACTURER MUST BE SDG&E-APPROVED. TABLE 2 MINIMUM CONDUIT BEND RADIUS MINIMUM CONDUIT SIZE BENDING RADIUS (IN) (IN) 3 36 4 48 5 48 INSTALLATION: A A 24-INCH MINIMUM COVER OVER THE CONDUIT IS REQUIRED FOR ALL NORMAL INSTALLATIONS ON PRIVATE PROPERTY, AND A 30-INCH MINIMUM COVER IS REQUIRED IN RIGHT-OF-WAY OR ON PUBLIC PROPERTY. IN ALL INSTALLATIONS WHERE THE MINIMUM COVER CANNOT BE MET, G.O. 128 REQUIRES ONE OF THE FOLLOWING ALTERNATIVES THAT ARE ACCEPTABLE TO SDG&E: 1. SCHEDULE 40 PVC OR SCHEDULE 80 PVC CONDUIT WITH A MINIMUM WALL THICKNESS OF 1/8-INCH. 2. AT LEAST A 3-INCH LAYER OF CONCRETE (2 SACK 3/8-INCH ROCK) ABOVE AND 2 INCHES ON EACH SIDE OF THE CONDUIT. REDUCED DEPTHS MUST BE APPROVED BY THE SDG&E PLANNER AND INSPECTOR.

B THE TRENCH MUST HAVE AN EVEN SLOPING GRADE TO ALLOW ROOM FOR A 90 DEGREE BEND INTO THE BOTTOM OF ANY CUSTOMER-OWNED OR SDG&E FACILITY. DO NOT CUT BENDS. THE TRENCH DEPTH IS TO BE DETERMINED AT THE PRE- CONSTRUCTION MEETING. C WHEN TRENCHING TO AN EXISTING SDG&E FACILITY, THE APPLICANT/CONTRACTOR SHALL COMPLETE THE TRENCH AND INSTALLATION OF CONDUIT UP TO THE EXISTING FACILITY UNLESS IT IS DETERMINED BY AN AUTHORIZED SDG&E EMPLOYEE THAT SUCH AN INSTALLATION PERFORMED BY THE APPLICANT/CONTRACTOR WOULD EXPOSE WORKERS TO OR CREATE A POTENTIAL HAZARD. IN THIS CASE, SDG&E WOULD PERFORM TRENCHING AS INDICATED ON THE CONSTRUCTION WORK ORDER. DIGGING UNDER ENERGIZED PAD MOUNTED EQUIPMENT AND INSTALLATION OF CONDUIT INTO ENERGIZED PAD MOUNTED EQUIPMENT WILL ALWAYS BE THE RESPONSIBILITY OF SDG&E. BILL OF MATERIALS: NONE NOTES: NONE © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E

A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG310.2 2 OF 3 UNDERGROUND SERVICE FROM OVERHEAD FACILITIES (LOW VOLTAGE)

REFERENCE: a. SEE UG3367 FOR TRENCH PARALLELING FOUNDATIONS. b. SEE UG3373 FOR SDG&E CONDUIT AND FITTINGS. c. SEE UG3376 FOR CONCRETE SLURRY REQUIREMENTS. d. SEE UG3941 FOR RESIDENTIAL RISER AND CONDUIT. e. SEE UG3944 FOR MATERIAL REQUIREMENTS OF AN UG SERVICE FROM OH FACILITIES. f. SEE UG3948 FOR CONDUIT SEALING. g. SEE OH1404UG4204 FOR CABLE POLE CONDUIT REQUIREMENTS. h. SEE UG3950 FOR FIELD HEATING SERVICE LATERAL CONDUITS. i SEE SG3. j SEE SG309.1 FOR MINIMUM BENDING RADIUS. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG310.3 3 OF 3 UNDERGROUND SERVICE FROM OVERHEAD FACILITIES (LOW VOLTAGE)

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR INSTALLATION, OWNERSHIP AND MAINTANENCE OF A PRIMARY AND SECONDARY VOLTAGE UNDERGROUND SYSTEM FED FROM A NEW CABLE POLE. ATTENTION: * CONTACT THE SDG&E INSPECTOR FOR INSTRUCTIONS ON TRENCHING NEAR THE POLE. ** SDG&E INSPECTION IS REQUIRED PRIOR TO BACKFILLING TRENCH. 2 3 5 1 4 13 6 8’-0” 10 12 3 3 9 11 7 8 9 FIGURE 1 TABLE 1: ITEM DESCRIPTION RESPONSIBLE PARTY SOURCE POLE AS DESIGNATED BY SDG&E PLANNER, CONTACT PROJECT MANAGEMENTS AT THE NEAREST SDG&E REGIONAL OFFICE SDG&E OVERHEAD 1 CLOSEST TO THE JOB SITE FOR AN ELECTRIC METER & SERVICE LOCATION FORM PRIOR TO THE START OF CONSTRUCTION. DISTRIBUTION SYSTEM 2 MEDIUM-VOLTAGE TERMINALS 3 MEDIUM-VOLTAGE AND LOW VOLTAGE CABLE AND CONNECTIONS SDG&E TO FURNISH, INSTALL, OWN AND 4 TRANSFORMER MAINTAIN, SUBJECT TO INSTALLATION CHARGES 5 SCHEDULE 40 PVC CONDUIT 6 SCHEDULE 80 PVC CONDUIT © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE

C EDITORIAL CHANGES ARC IPJ IPJ KRG 08/07/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG311.1 1 OF 3 PRIMARY & SECONDARY VOLTAGE UNDERGROUND SYSTEM ON CUSTOMER PREMISES FROM CABLE POLE

TABLE 1 (CONT’D): ITEM DESCRIPTION RESPONSIBLE PARTY SCHEDULE 80 PVC CONDUIT BEND. THE LARGER THE RADIUS AT THE POLES IS NECESSARY TO ALLOW FOR VERTICAL CABLE PULLING TENSION. TABLE 2: SCHEDULE 80 PVC CONDUIT BEND 7 CONDUIT RADIUS SIZE (IN) (IN) 2, 3 36 4, 5 48 PRIMARY CONDUIT SIZED AND SPECIFIED BY SDG&E ON THE CONSTRUCTION WORK ORDER. THE CONDUIT MANUFACTURER MUST BE SDG&E-APPROVED. BETWEEN ITEM 7 AND ITEM 12, THE CONDUIT INSTALLER SHALL PROVIDE A 3/4-INCH PULLING AND 8 MEASURING TAPE IN EACH CONDUIT. THE PULLING TAPE MUST BE APPROVED BY SDG&E, HAVE A MINIMUM AVERAGE TENSILE STRENGTH OF 2,500 POUNDS, AND BE WOVEN POLYESTER HIGH STRENGTH, CONTINOUS FILAMENT, PRE-LUBRICATED WITH FOOTAGE MARKING. PULLING TAPE TAILS OF 24 INCHES SHALL BE SECURED AT EACH END OF THE CONDUIT. THE PULLING TAPE SHALL BE PULLED IN BEHIND THE MANDREL. WHEN THE PULLING AND MEASURING A CLEAR ROUTE ON ANY PRIVATE PROPERTY, THAT IS CLEAR OF OBSTRUCTIONS WHICH WOULD INHIBIT THE CONSTRUCTION OF CUSTOMER SHALL PRIMARY AND SERVICE FACILITIES.

TRENCH, BACKFILL, PAVEMENT REPAIR AND STRUCTURES SHALL BE IN ACCORDANCE WITH FURNISH, INSTALL, OWN SDG&E AND THE LOCAL GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) REQUIREMENTS. AND MAINTAIN AT THEIR 9 EXPENSE ATTENTION: *CONTACT THE SDG&E INSPECTOR FOR INSTRUCTION ON TRENCHING NEAR THE SDG&E POLE. THE CUSTOMER IS TO OBTAIN AN EXCAVATION PERMIT FOR TRENCHING IN STREET RIGHT-OF-WAY AS REQUIRED BY THE AHJ. SDG&E INSPECTIONS IS REQUIRED PRIOR TO SHADING AND BACKFILLING THE TRENCH. 10 TRANSFORMER PAD AND GROUNDING. THE PAD SIZE IS SPECIFIED ON THE CONSTRUCTION WORK ORDER. f SERVICE LATERAL CONDUIT SIZED AND SPECIFIED BY SDG&E ON THE CONSTRUCTION WORK ORDER OR ON A SEPARATE 11 g SERVICE ORDER. CONDUIT MANUFACTURER MUST BE SDG&E APPROVED. TYPE AND SCHEDULE OF CONDUIT ON OR WITHIN A BUILDING OR STRUCTURE SHALL BE INSTALLED PER THE AHJ’S REQUIREMENTS 12 AND MUST BE LISTED AND LABELED. NORMALLY, SCHEDULE 40 PVC IS ALLOWED INSIDE A BUILDING WALL AND SCHEDULE 80 PVC IS REQUIRED WHEN EXPOSED ON AN EXTERIOR WALL. CONSULT WITH THE APPROPIATE AHJ. FLEX CONDUIT IS NOT PERMITTED.

13 SERVICE TERMINATING ENCLOSURE PER SECTION 700 REQUIREMENTS. IF A SECONDARY HANDHOLE IS REQUIRED BETWEEN THE NEW TRANSFORMER AND THE SERVICE AND METERING EQUIPMENT, THE 14 LID SHALL BE MARKED “SDG&E”. HANDHOLE NOT SHOWN ON FIGURE 1. INSTALLATION: A. A 24-INCH MINIMUM COVER OVER THE CONDUIT IS REQUIRED FOR ALL NORMAL INSTALLATIONS ON PRIVATE PROPERTY AND A 30- INCH MINIMUM COVER IS REQUIRED IN RIGHT-OF-WAY OR ON PUBLIC PROPERTY. IN ALL INSTALLATIONS WHERE THE MINIMUM COVER CANNOT BE MET, G.O. 128 REQUIRES ONE OF THE FOLLOWING: 1. STEEL CONDUIT. 2. SCHEDULE 40 PVC OR SCHEDULE 80 PVC CONDUIT WITH A MINIMUM WALL THICKNESS OF 1/8-INCH. 3. AT LEAST A 3-INCH LAYER OF CONCRETE (2 SACKS 3/8-INCH ROCK) ABOVE AND 2 INCHES ON EACH SIDE OF THE CONDUIT. REDUCED DEPTHS MUST BE APPROVED BY THE SDG&E PROJECT PLANNER AND INSPECTOR. B. THE TRENCH MUST HAVE AN EVEN SLOPING GRADE TO ALLOW ROOM FOR A 90 DEGREE BEND INTO THE BOTTOM OF ANY CUSTOMER-OWNED OR SDG&E FACILITY. DO NOT CUT BENDS. THE TRENCH DEPTH IS TO BE DETERMINED AT THE PRE- CONSTRUCTION MEETING.

© 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 08/07/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG311.2 2 OF 3 PRIMARY & SECONDARY VOLTAGE UNDERGROUND SYSTEM ON CUSTOMER PREMISES FROM CABLE POLE

INSTALLATION (CONT’D): C. WHEN TRENCHING TO AN EXISTING SDG&E FACILITY, THE APPLICANT/CONTRACTOR SHALL COMPLETE THE TRENCH AND INSTALLATION OF CONDUIT UP TO THE EXISTING FACILITY UNLESS IT IS DETERMINED BY AN AUTHORIZED SDG&E EMPLOYEE THAT SUCH AN INSTALLATION PERFORMED BY THE APPLICANT/CONTRACTOR WOULD EXPOSE WORKERS TO, OR CREATE, A POTENTIAL HAZARD. IN THIS CASE, SDG&E WOULD PERFORM TRENCHING AS INDICATED ON THE CONSTRUCTION WORK ORDER. DIGGING UNDER ENERGIZED PAD MOUNTED EQUIPMENT AND INSTALLATION OF CONDUIT INTO ENERGIZED PAD MOUNTED EQUIPMENT WILL ALWAYS BE THE RESPONSIBILITY OF SDG&E. BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: a. SEE UG3373 FOR SDG&E CONDUIT AND FIITINGS. b. SEE UG3376 FOR CONCRETE SLURRY EQUIPMENTS. c. SEE UG3941 FOR RESIDENDTILA RISER AND CONDUIT. d. SEE UG3948 FOR SEALING CONDUITS. e. SEE OH1404UG4204 FOR CABLE POLE CONDUIT REQUIREMENTS. f. SEE UG4500 FOR GROUNDING SPECIFICATIONS. g. SEE SG309 FOR ADDITIONAL INFORMATION. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 08/07/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG311.3 3 OF 3 PRIMARY & SECONDARY VOLTAGE UNDERGROUND SYSTEM ON CUSTOMER PREMISES FROM CABLE POLE

SCOPE: THIS STANDARD SHOWS A TERMINATION OF A CUSTOMER-OWNED 2-INCH OR 3-INCH CONDUIT BEND AND RISER AT A BUILDING. ALTERNATIVE SDG&E POWER G INSTALLATION SOURCE 1 4’’ 45° 4 2 BUILDING 5 4’’ FIGURE 1 6’’ MIN. TYPICAL PLAN 3 FINAL GRADE F II 1’-6’’ MIN. I DEPTH 6 c 2’-0’’ MIN. DEPTH 45° 90° - 2’-0’’ MIN. B RADIUS D E 3 C b FIGURE 2 BOTTOM OF TRENCH 1’’ EARTH PLAN FIGURE 1 TYPICAL ELEVATION INSTALLATION: A. CONTACT DESIGN & PROJECT MANAGEMENT AT THE NEAREST SDG&E REGIONAL OFFICE CLOSEST TO THE JOB SITE FOR AN ELECTRIC METER & SERVICE LOCATION FORM PRIOR TO THE START OF CONSTRUCTION. g B G.O. 128 RULE 33.4-D REQUIRES ONE OF THE FOLLOWING DOWN TO AN 18-INCH DEPTH ON PRIVATE PROPERTY: 1. STEEL CONDUIT 2. SCHEDULE 40 PVC OR SCHEDULE 80 PVC CONDUIT WITH A MINIMUM WALL THICKNESS OF 1/8-INCH 3. AT LEAST A 3-INCH LAYER OF CONCRETE ABOVE AND 2 INCHES ON EACH SIDE OF THE CONDUIT © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE

C EDITORIAL CHANGES ARC IPJ IPJ KRG 01/18/2024 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG312.1 1 OF 2 CUSTOMER – OWNED CONDUIT BEND & RISER AT BUILDING

INSTALLATION (CONT’D): C WHEN THE TRENCH IS BUTTED AGAINST THE BUILDING, THE END OF THE TRENCH SHALL BE EXCAVATED AT A ONE-TO-ONE SLOPE IF UNDERMINING IS SUSPECTED AT THE BUILDING. D THE 90 DEGREE BEND MUST BE INSTALLED DEEP ENOUGH TO CONNECT TO THE CONDUIT ON THE BOTTOM OF THE TRENCH. E CONDUIT MANUFACTURER MUST BE SDG&E APPROVED. F TYPE AND SCHEDULE OF CONDUIT ON OR WITHIN A BUILDING OR STRUCTURE TO BE INSTALLED PER THE BUILDING INSPECTOR’S REQUIREMENTS AND MUST BE LISTED AND LABELED. NORMALLY SCHEDULE 40 PVC IS ALLOWED INSIDE A BUILDING WALL AND SCHEDULE 80 PVC IS REQUIRED WHEN EXPOSED ON AN EXTERIOR WALL. CONSULT WITH THE APPROPRIATE INSPECTION AUTHORITY HAVING JURISDICTION (AHJ). FLEX CONDUIT IS NOT PERMITTED. G SERVICE LATERAL CONDUIT SIZED AND SPECIFIED BY SDG&E. CONSULT WITH THE SDG&E PLANNER. BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 STUD, 2’’ X 4’’ (MIN.) AS REQ’D -- -- -- 2 MUDSILL AS REQ’D -- -- -- 3 COUPLING, CONDUIT AS REQ’D -- -- -- 4 SURFACING MATERIAL, EXTERIOR AS REQ’D -- -- -- 5 BEND, RISER AS REQ’D -- -- --

6 BEND, CONDUIT, 3’’ AS REQ’D -- -- -- NOTES: I A STRAIGHT PIECE OF 3-INCH CONDUIT AND A 90 DEGREE BEND WITH A 36-INCH MINIMUM RADIUS IS REQUIRED. f II POINT CONDUIT STUB IN THE DIRECTION OF SUPPLY SOURCE NORMALLY AT 45 DEGREE ANGLE FROM OUTER FACE OF BUILDING WALL. REFERENCE: a. SEE UG3367 FOR TRENCH PARALLELING FOUNDATIONS. b SEE UG3370 (SAN DIEGO COUNTY) OR UG3371 (ORANGE COUNTY) FOR TRENCH DEPTHS, SHADING AND BACKFILL REQUIREMENTS. c SEE UG3942 FOR MINIMUM BENDING RADIUS. d. SEE UG3948 FOR SEALING CONDUITS. e. SEE UG3950 FOR FIELD HEATING SERVICE LATERAL CONDUITS. f SEE UG3942, NOTE C FOR 2-INCH CONDUIT INSTALLATIONS. g SEE SG2. h SEE UG3941. i SEE SG309 FOR ADDITIONAL INFORMATION. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 01/18/2024 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG312.2 2 OF 2 CUSTOMER – OWNED CONDUIT BEND & RISER AT BUILDING

SCOPE: THIS STANDARD SHOWS TYPICAL CABLE POLE RISER POSITIONS FOR SDG&E AND COMMUNICATION COMPANIES. ANCHOR 1 OR 2 LOCATION 1 OR 2 9 9 9 9 5 5 2 2 6 A 6 A 6 6 2 2 4 4 9 9 9 9 8 CLIMBING CLIMBING 9 SPACE SPACE 1 OR 2 6 6 9 9 9 9 5 8 2 9 4 7 6 A B C 9 8 ANCHOR 6 3 B 9 6 B C 3 CONFIGURATION 1 CONFIGURATION 2 6 DEADEND MULTIPLE POWER RISER THROUGH MULTIPLE POWER RISER FIGURE 1 PREFERRED CONSTRUCTION CLIMBING SPACE ANCHOR 4 1 OR 2 4 1 OR 2 6 6 CLIMBING FIGURE 3 CLIMBING SPACE SPACE NEW CONSTRUCTION WITH EXISTING SDG&E RISER 8 6 DEADEND OR THROUGH 6 CONSTRUCTION 8 7 MULTIPLE RISER ANCHOR CONFIGURATION 1 CONFIGURATION 2 DEADEND SINGLE POWER RISER THROUGH SINGLE POWER RISER FIGURE 2 ALTERNATE CONSTRUCTION INSTALLATION: A COMMUNICATIONS ONLY POINT OF ATTACHMENT FOR LADDER ARM BRACKET CONSTRUCTION SHALL BE ON THE BACKSIDE OF LADDER ARM BRACKET ASSEMBLY. GALVANIZED UNISTRUT PIPE CLAMPS SHALL BE USED TO SECURE THE CONDUIT. COMMUNICATIONS MAY ATTACH ON THE BACK OF THE LADDER ARM ASSEMBLY ALONGSIDE SDG&E’S RISER. LADDER ARMS MAY BE

INSTALLED BY COMMUNICATIONS COMPANIES PROVIDED THEY ARE INSTALLED PER SDG&E CONSTRUCTION STANDARDS AND MEET SDG&E MATERIAL SPECIFICATIONS. B FOR NEW CONSTRUCTION WITH AN EXISTING SDG&E RISER ON THE POLE (FIGURE 3), ONE 3-INCH RISER MAXIMUM ON THE POLE AND ONE 3-INCH RISER MAXIMUM ON THE BACKSIDE OF THE LADDER ARM BRACKET ARE PERMITTED BACK-TO-BACK. C WHEN A LADDER ARM IS EXISTING, AND THE BACK OF LADDER ARM POSITIONS AND POLE POSITIONS ON COMMUNICATIONS SIDE OF POLE ARE OCCUPIED, ADDITIONAL COMMUNICATIONS RISERS MUST BE PLACED ON ANOTHER POLE. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG313.1 1 OF 2 STANDARD JOINT CABLE POLE RISER POSITION USING LADDER ARM BRACKET & SINGLE RISER

BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 RISER, PRIMARY, SDG&E AS REQ’D -- -- -- 2 RISER, SECONDARY, SDG&E AS REQ’D -- -- -- 3 RISER, EXISTING, SDG&E AS REQ’D -- -- -- 4 GROUND, ELECTRIC, SDG&E AS REQ’D -- -- -- 5 ASSEMBLY, BRACKET, LADDER ARM AS REQ’D -- -- -- 6 RISER, POSITION, COMMUNICATION AS REQ’D -- -- -- 7 TANGENT THROUGH POSITION, COMMUNICATION AS REQ’D -- -- -- 8 GROUND, COMMUNICATION AS REQ’D -- -- -- NOTES: I. 1/2 POLE CLIMBING SPACE APPLIES TO A LEVEL 4 FEET BELOW THE LOWEST LEVEL OF FACILITIES (COMMUNICATIONS, SECONDARY, PRIMARY, ETC.). h II. CHANGES TO THESE STANDARD RISER POSITIONS MUST NOT REDUCE THE CLIMBING SPACE TO LESS THAN 1/2 POLE. III. CONDUIT RISER AT BASE OF POLE NOT TO INFRINGE ON CURB OR SIDEWALK POSITIONS. IV. SPARE CONDUITS ARE NOT CONSIDERED AS RISERS. REFERENCE: a. PVC RISERS ARE NOT PERMITTED WITHIN THE CLIMBING SPACE PER OH1414UG4214. b. NO CATV OR TELCO JUMPERS ALLOWED IN CLIMBING SPACE PER G.O. 95 RULE 84.7. c. SEE OH225 FOR ALLOWABLE G.O. 95 CLIMBING SPACE OBSTRUCTIONS. d.

SEE OH363UG4205 FOR INSTALLATION OF POLE STEPS. e. SEE OH1403UG4203 FOR POLE QUADRANT AND RISER IDENTIFICATION. f. SEE OH1404UG4204 WHEN INSTALLING A SINGLE RISER, MODIFYING EXISTING CABLE POLE TO INCLUDE SECOND RISER, OR FOR MULTIPLE CONDUIT RUNS AND JOINT POLE INSTALLATION. g. SEE UG4620 FOR TELECOMMUNICATIONS INSTALLATION. h SEE OH430 FOR CLIMBING SPACE REQUIREMENTS. i SEE UG4202. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG313.2 2 OF 2 STANDARD JOINT CABLE POLE RISER POSITION USING LADDER ARM BRACKET & SINGLE RISER

SCOPE: THIS STANDARD SHOWS CABLE POLE RISER LOCATIONS, SDG&E QUADRANT AND SIGN FOR MARKING POLE RISER INSTALLATIONS. 5 9 6 6 6 6 9 9 9 9 3 3 5 5 4 4 5 6 5 6 9 9 1 2 A B 1 2 A B CLIMBING 5 5 CLIMBING 5 5 SPACE SPACE 4 4 5 5 5 8 9 5 FIGURE 1 FIGURE 2 DEADEND CONSTRUCTION MULTIPLE POWER RISER THROUGH CONSTRUCTION MULTIPLE POWER RISER 6 6 5 1 2 A B 9 9 3 9 5 5 5 6 1 2 A B 9 4 7 5 5 5 3 CLIMBING 4 I SPACE 5 CLIMBING SPACE 5 5 FIGURE 3 FIGURE 4 THROUGH CONSTRUCTION MULTIPLE POWER RISER DEADEND CONSTRUCTION SINGLE POWER RISER 6 9 1 2 A B 5 5 CLIMBING 4 SPACE 5 8 5 FIGURE 5 THROUGH CONSTRUCTION SINGLE POWER RISER © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG314.1 1 OF 3 CABLE POLE QUADRANT & RISER IDENTIFICATION

INSTALLATION: A NAIL THE SIGN TO THE RISER POLE APPROXIMATELY 5 FEET ABOVE GROUND WITH THE PROPER SIDE SHOWING. B USE ONE MARKER TO SHOW SDG&E RISER LOCATION. BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 SIGN, MARKER, YELLOW PLASTIC 1 1403/4203 S476312 -- 2 NAILS, GALV. 1 3/4” AS REQ’D -- S492192 -- 3 BRACKET, LADDER ARM AS REQ’D -- -- -- 4 COMMUNICATIONS AS REQ’D -- -- -- 5 ANCHOR AS REQ’D -- -- -- 6 SDG&E AS REQ’D -- -- -- 7 RISER, EXISTING, SDG&E AS REQ’D -- -- -- 8 TELCO OR CATV AS REQ’D -- -- -- NOTES: I NO LARGER THAN 3 INCHES. REFERENCE: a. SEE OH1402UG4202 FOR STANDARD JOINT CABLE POLE RISER POSITIONS. b. SEE OH1404UG4204 FOR CABLE POLE RISER INSTALLATION. c SEE UG4203. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG314.2 2 OF 3 CABLE POLE QUADRANT & RISER IDENTIFICATION

SCOPE: THIS STANDARD SHOWS THE SIGN USED FOR MARKING POLE RISER INSTALLATIONS. 3” PLACE PLACE ELECTRIC RISER ELECTRIC HERE RISER HERE 7 1/2” 9 1/4” 1 IN. 10 3/4” 6” CLEAR 7 1/2” FROM 6” 7 1/2” POLE SDG&E SDG&E FIGURE 1 FIGURE 1 PREFERRED CONSTRUCTION ALTERNATE CONSTRUCTION FRONT REVERSE INSTALLATION: A. USE THE SIDE OF THE SIGN STATING, “PLACE ELECTRIC RISER HERE” (FRONT), WHEN LADDER ARM BRACKETS ARE INSTALLED. B. FOR ALTERNATE CONSTRUCTION, USE THE SIDE OF THE SIGN STATING, “PLACE ELECTRIC RISER HERE 1 IN. CLEAR FROM POLE” (REVERSE), WHEN A SINGLE SDG&E CONDUIT IS INSTALLED. C. REMOVE SIGN WHEN POLE RISER(S) IS/ARE INSTALLED. BILL OF MATERIALS: NONE NOTES: I. A SIGN IS AVAILABLE TO MARK SDG&E RISER LOCATIONS ON THE CABLE POLE. THE SIGN IS MADE OF FLEXIBLE PLASTIC, WITH RAISED LETTERING ON EACH SIDE. SIGNS ARE TO BE ATTACHED TO POLES WITH 1 3/4-INCH NAILS. SEE BILL OF MATERIALS ON PAGE 2 FOR STOCK NUMBERS. II. “PLACE ELECTRIC RISER HERE, SDGE” IS PRINTED ON THE FRONT SIDE, SHOWING 3 POLE RISER POSITIONS, with “PLACE ELECTRIC RISER HERE 1 IN.

CLEAR FROM POLE, SDGE” PRINTED ON THE REVERSE SIDE. III. WHEN THE RISER LOCATION HAS BEEN DETERMINED, THE SIGNS ARE TO BE PLACED ON THE POLE, APPROXIMATELY 5 FEET ABOVE GROUND LEVEL BY THE CUSTOMER PROJECT PLANNER, PROJECT COORDINATOR, ELECTRIC SUPERVISOR, INSPECTOR, OR WORKING FOREMAN SETTING THE POLE. REFERENCE: a. SEE REFERENCES ON PAGE 2. b. SEE UG4203. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG314.3 3 OF 3 CABLE POLE QUADRANT & RISER IDENTIFICATION

SCOPE: THIS STANDARD SHOWS NEW CONSTRUCTION FOR SINGLE AND MULTIPLE CONDUIT RISERS. 20 15 B P L d 11 20 C e 7 1/2" 6” SDG&E 9 10 SDG&E SPARE O 12 A 6” D 10’-0” 2’ – 3/4" 16 17 18 B MAX. 19 D FIGURE 2 PREFERRED CONSTRUCTION FOR NEW SINGLE RISER 6 WITH OR WITHOUT EXISTING RISER(S) ON POLE G 10’-0” B MAX. 20 15 B A B 12 A 11 L P 7 13 10’-0” 6” B 7 1/2" SDG&E MAX. A B 20 A B SDG&E SDG&E SDG&E D 16 17 18 10’-0” 4 2’ – 3/4" RISER SECTION A 9’-6” (8’-0” MIN.) E FIGURE 3 NEW MULTIPLE RISER CONSTRUCTION H 3 5 15 B V 2 EXISTING L RISER 3” MIN. SDG&E 20 SCH. 80 FIGURE 1 N FRONT VIEW L 13 11 L 6” P M 1 SDG&E SDG&E SDG&E 12 A FIGURE 1 N SIDE VIEW D 17 18 FIGURE 4 16 EXISTING RISER(S) NEW MULTIPLE RISER CONSTRUCTION WITH RISER(S) ON POLE J © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/29/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG315.1 1 OF 5 UNDERGROUND ELECTRIC CABLE POLE RISER INSTALLATION

10 9 N 6 7 6 3’-0” 8 F MAX. 4 K 8’-0” 3 N E MIN. FINAL GRADE 5 8 2 i 3” MIN. SCH. 80 1 N FIGURE 5 ALTERNATE NEW CONSTRUCTION FOR ONE RISER UP TO 3’ CABLE POLE RISER DETAIL K © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/29/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG315.2 2 OF 5 UNDERGROUND ELECTRIC CABLE POLE RISER INSTALLATION

DEFINITIONS: • FUTURE SPARE CONDUITS: THE TERM “FUTURE SPARE CONDUITS” REFERS TO AN EMPTY CONDUIT SPECIFIED BY EITHER THE PROJECT PLANNER OR DISTRIBUTION PLANNING FOR AREAS WITH GROWTH POTENTIAL. FUTURE FEEDER CONDUIT SPECIFIED BY DISTRIBUTION PLANNING MUST BE SUPPORTED BY THE LONG TERM FEEDER ARRANGEMENT PLAN. • SPARE CONDUITS: THE TERM “SPARE CONDUIT” REFERS TO AN EMPTY CONDUIT THAT IS SPECIFIED BY THE PLANNER FOR OPERATING AND MAINTENANCE REQUIREMENTS. INSTALLATION: A MOUNT FIRST BRACKET LADDER ARM NO LOWER THAN 9 FEET 6 INCHES. IF THE FIRST BRACKET EXTENDS TOWARD A STREET OR DRIVEWAY, OFFSET THE UNISTRUT CHANNEL TO CLEAR LARGE VEHICLES. B INSTALL AT LEAST ONE LADDER ARM BRACKET FOR EACH COUPLING JOINT OF CONDUIT, WITH A MAXIMUM 10-FOOT DISTANCE BETWEEN BRACKETS. ALL LADDER ARM BRACKETS TO BE ATTACHED TO THE POLE WITH BOLTS, NOT LAG SCREWS. C REFER TO INDIVIDUAL CABLE POLE STANDARD FOR CORRECT MEASUREMENT. D CENTER CONDUIT POSITION SHALL BE USED FOR MULTIPLE SDG&E SECONDARY RUNS OR SDG&E TELECOMMUNICATION CONDUIT.

OTHER CONDUIT POSITIONS ON THE FRONT OF THE BRACKET SHALL BE USED FOR A SINGLE OR DOUBLE CONDUIT. THE 8-INCH UNISTRUT CHANNEL (ITEM 19) MAY BE INSTALLED FOR A SINGLE RISER WHERE NO COMMUNICATIONS ARE ANTICIPATED. E RISERS OF PLASTIC CONDUIT SHALL BE EPC-80 PVC SCHEDULE 80, FROM THE GROUND LINE TO A LEVEL NOT LESS THAN 8 FEET ABOVE THE GROUND LINE PER G.O. 95 RULE 54.6-E AND SDG&E CONDUIT SIZING REQUIREMENTS. F FOR SINGLE RISER CONSTRUCTION, SEPARATION OF PIPE STRAPS (ITEM 8) SHALL BE 3 FEET MAXIMUM. G USE FIGURE 2, PREFERRED CONSTRUCTION FOR A SINGLE RISER WHEN: i. INSTALLING A SINGLE RISER. ii. ADDING A SINGLE RISER TO AN EXISTING RISER POLE. AN EXISTING SINGLE SDG&E RISER WOULD REMAIN ON THE POLE UNLESS IT IS CREATING A G.O. 95 INFRACTION. IF AN INFRACTION EXISTS, MOVE THE EXISTING RISER TO THE LADDER ARM BRACKET ALONG WITH THE NEW RISER SHOWN IN FIGURE 3. H USE FIGURE 3 WHEN INSTALLING MORE THAN ONE RISER. J USE FIGURE 4 WHEN ADDING A RISER(S) TO AN EXISTING SDG&E RISER POLE. AN EXISTING SINGLE SDG&E RISER WOULD REMAIN ON THE POLE UNLESS IT IS CREATING A G.O. 95 INFRACTION.

IF AN INFRACTION EXISTS, MOVE THE EXISTING RISER TO THE LADDER ARM BRACKET. K USE FIGURE 5 ALTERNATE CONSTRUCTION FOR A SINGLE RISER WHEN: i. FIELD CONDITION DO NOT ALLOW ROOM FOR LADDER ARM BRACKETS (I.E., CONDUIT WOULD EXTEND INTO THE STREET, SIDEWALK, DRIVEWAY, ETC.). THIS INSTALLATION WOULD BE LIMITED TO ONE SDG&E RISER, UP TO 3 INCHES. (NO OTHER RISER(S) LARGER THAN 3 INCHES WOULD BE ON THE POLE.) ONE HALF OF THE POLE MUST REMAIL CLEAR FOR CLIMBING SPACE, AND G.O. 95 REQUIREMENTS MUST BE FOLLOWED. ii. AN EXISTING RISER IS ALREADY ON THE POLE AND IT MAY BE RE-USED (I.E. REMOVING A STREET LIGHT FUSE BOX FROM A POLE, AND NEW CONDUIT WILL CONNECT TO THE EXISTING CONDUIT WHERE THE FUSE BOX WAS LOCATED, CUSTOMER RE- WIRE JOB, ETC.) L ONE RISER ON THE POLE 3 INCHES MAXIMUM AND ONE RISER ON THE BACK SIDE OF THE LADDER ARM BRACKET 3 INCHES MAXIMUM ARE PERMITTED BACK-TO-BACK. A MAXIMUM OF TWO 4-INCH COMMUNICATIONS RISERS ARE PERMITTED ON THE BACK SIDE OF A LADDER ARM ASSEMBLY. THE ADJACENT POLE QUADRANT MUST BE VACANT TO INSTALL ANY 4-INCH RISER ON THE BACK OF THE

LADDER ARM BRACKET AND MUST REMAIN VACANT AFTER INSTALLATION. M CONCRETE ENCASEMENT IS REQUIRED AROUND THE ELBOW(S) FOR 5-INCH PRIMARY CONDUIT(S). © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/29/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG315.3 3 OF 5 UNDERGROUND ELECTRIC CABLE POLE RISER INSTALLATION

INSTALLATION (CONT’D): N EACH CONDUIT RUN BETWEEN SUBSTRUCTURES, PADS, CUSTOMER SERVICE RISERS, ETC., SHALL BE ONE SIZE CONDUIT CONTINUOUSLY, I.E. NO REDUCERS ARE ALLOWED WITHIN A CONDUIT RUN EXCEPT WHERE THE CONDUIT ENTERS A SUBSTRUCTURE OR ABOVE GROUND LEVEL ON A RISER POLE. IF A 3-INCH RISER IS ALREADY INSTALLED, AND THE GRIP SIZE REQUIRES A 2-INCH RISER, A 2-INCH TO 3-INCH REDUCER MAY BE USED TO ACCOMMODATE THE GRIP. THE SAME WOULD APPLY TO OTHER SIZE CONDUITS AS HAS BEEN DESCRIBED. GRIPS ARE NOT REQUIRED ON SECONDARY RISERS. O SPARE CONDUITS SHOULD BE CONSIDERED OR INSTALLED WHEN: i. REQUESTED BY A CUSTOMER AT THEIR OWN EXPENSE, BUT NOT EXCEED CONDUIT LIMITATIONS IN THIS STANDARD. ii. IT IS ECONOMICAL TO INSTALL CONDUIT IN LIEU OF CONCRETE, BUT NOT EXCEED CONDUIT LIMITATIONS OF THIS STANDARD. iii. BASED ON FUTURE CONSTRUCTION LIMITATIONS SUCH AS BENEATH BRIDGES, ROADWAYS AND RAILROAD TRACKS, BUT NOT TO EXCEED CONDUIT LIMITATIONS IN THIS STANDARD. iv. IN CONVERSION OR NEW BUSINESS PROJECTS TO ALLOW EASY BYPASS OF THE POLE DURING REMOVAL. CONDUITS INSTALLED

FOR THIS PURPOSE SHALL NOT GO UP THE POLE BUT SHALL EXTEND PAST THE POLE A MINIMUM OF 6 INCHES. P COMMUNICATIONS ONLY POINT OF ATTACHMENT FOR LADDER ARM BRACKET CONSTRUCTION SHALL BE ON THE BACK SIDE OF THE LADDER ARM BRACKET ASSEMBLY. GALVANIZED UNISTRUT PIPE CLAMP SHALL BE USED TO SECURE THE CONDUIT. COMMUNICATIONS MAY ATTACH ON THE BACK OF THE ASSEMBLY ALONGSIDE SDG&E’S RISER. BILL OF MATERIALS: ITEM DESCRIPTION WIRE SIZE QUANTITY STANDARD PAGE STOCK NUMBER DESIGN UNITS 3” -- S279904 -- 1 COUPLING, SIZE AS REQUIRED 4” -- S279936 -- 5” -- S280032 -- 3”-36” R -- S322472 CP-B CONDUIT RISER BEND, SCHEDULE 80, SIZE AS 2 4”-48” R -- S322480 CP-B REQUIRED 5”-48” R -- S322488 CP-B 4” TO 3” -- S573408 4-3RED 3 REDUCE, PVC, SCHEDULE 80, SIZE AS REQUIRED 5” TO 4” -- S573424 5-4RED 3” -- S251552 S80 CONDUIT RISER, PVC, SCHEDULE 80, SIZE AS 4 4” -- S251584 S80 REQUIRED 5” -- S251592 S80 3” -- S280544 -- 5 COUPLING, PVC, SCHEDULE 80 4” -- S280576 -- 5” -- S280592 -- 3” -- S280448 -- 6 COUPLING, PVC, SCHEDULE 40, AS REQUIRED 4” -- S280480 -- 5” -- S280496 -- 3” -- AS REQ’D 390 S251360 S40

7 CONDUIT, PVC, SCHEDULE 40, AS REQUIRED 4” -- S251392 S40 5” -- S251408 S40 3” -- S697920 -- STRAP, PIPE, GALVANIZED, 2-16D NAILS, 8 VI 4” -- S697952 -- GALVANIZED 5” -- S697984 -- 3” 1/C# 2 SOL S393984 2G1#2A 3” 2-1/C# 2 SOL S394048 3G2#2A 3” 3-1/C# 2 SOL S394048 3G3#2A 4” 3-1/C# 2 SOL S394104 4G3#2A 4” 3-1/C# 2 SOL S394080 4G#2/0 GRIP, CABLE SIZE AS REQUIRED FOR PRIMARY 9 4” 350 KCMIL S394100 4G-350 RISER ONLY N 5” 350 KCMIL S394102 5G-350 5” 750 KCMIL S394096 5G-750 5” 1000 KCMIL S394098 5G1000 4” 4/0 S394080 4G4/0C 5” 500 KCMIL S394096 5G500C 10 PROTECTOR, NYLON CABLE -- -- S558720 -- © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/29/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG315.4 4 OF 5 UNDERGROUND ELECTRIC

CABLE POLE RISER INSTALLATION

BILL OF MATERIALS (CONT’D): ITEM DESCRIPTION WIRE SIZE QUANTITY STANDARD PAGE STOCK NUMBER DESIGN UNITS 11 BRACKET, LADDER ARM B -- S167186 X LA-ARM 12 CHANNEL, DOUBLE GALV., 24 3/4" X 7/8” X 2 3/4" B -- S216702 X 13 NUT, CLAMPING CHANNEL, W/SPRING, 1/2" -- S503488 -- 14 CLAMP, PIPE, STEEL, GALV., UNISTRUT, 2” VII -- S229536 CL-2IN BOLT, MACHINE, GALV., 5/8” X (LENGTH AS REQ’D), 15 B -- 390 -- -- 1-SQUARE WASHER & DOUBLE COIL SPRING WASHER AS REQ’D 16 CLAMP, PIPE, STEEL, GALV., UNISTRUT, 4” -- S229664 CL-4IN 17 CLAMP, PIPE, STEEL, GALV., UNISTRUT, 5” -- S229668 CL-5IN 18 CLAMP, PIPE, STEEL, GALV., UNISTRUT, 3” -- S229632 CL-3IN 19 CHANNEL, GALV., 8” D -- S216840 -- 20 COMMUNICATIONS -- -- -- -- NOTES: I. ALL CABLE POLES RISERS, PRIMARY AND SECONDARY, SHALL BE 3-INCH MINIMUM CONDUIT. II. THIS CONSTRUCTION IS LIMITED TO A MAXIMUM OF FOUR SDG&E RISER (NO MORE THAN TWO PRIMARY RISERS). III. WHEN POSSIBLE, THE RISER SHOULD BE INSTALLED ON THE SIDE OF THE POLE OPPOSITE TRAFFIC FLOW TOWARDS SIDEWALK. THIS INCLUDES SINGLE RISER INSTALLATIONS. IV.

SPARE CONDUITS SHALL BE CAPPED JUST ABOVE GROUND LEVEL TO PREVENT MOISTURE OR WIRE ENTRY AND TO KEEP OUT DEBRIS. SPARE CONDUITS ARE NOT TO BE CONSIDERED A RISER. V SLOPE SLURRY ENCASEMENT 1/4-INCH ABOVE GRADE OF PAVED AREA TO DRAIN WATER AWAY FROM CONDUIT RISER. VI SINGLE RISER CONSTRUCTION, 4-INCH AND SMALLER. VII NOT SHOWN ON FIGURES. X THIS ITEM IS EXEMPT. REFERENCE: a. SEE OH363UG4205 FOR POLE STEPS. b. SEE UG3944 FOR UG SERVICE FROM OH FACILITIES, MATERIAL REQUIREMENTS, ETC. c. SEE OH1402UG4202 FOR POSITIONING OF RISERS INVOLVING MORE THAN ONE UTILITY. d SEE OH1440UG4240 FOR NON-PORCELAIN TERMINAL MOUNTING BRACKET INSTALLATION AND MATERIALS. e SEE OH1414UG4214 FOR 0-750V UNDERGROUND SERVICE FROM AN OVERHEAD LINE. f. SEE UG4620 FOR TELECOMMUNICATIONS INSTALLATION. g. PVC RISERS ARE NOT PERMITTED WITHIN THE CLIMBING SPACE PER G.O. 95 RULE 22.2C. h SEE UG4204. i SEE UG3370 FOR DEPTH REQUIREMENTS. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/29/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG315.5 5 OF 5 UNDERGROUND ELECTRIC CABLE POLE RISER INSTALLATION

SCOPE: THIS STANDARD SHOWS REQUIREMENTS FOR INSTALLING AN UNDERGROUND ELECTRIC SERVICE LATERAL TO GASOLINE DISPENSING AND SERVICE STATIONS. A GASOLINE DISPENSING AND SERVICE STATION IS DEFINED AS A LOCATION WHERE GASOLINE OR OTHER VOLATILE FLAMMABLE LIQUIDS OR LIQUEFIED FLAMMABLE GASES ARE TRANSFERRED TO FUEL TANKS (INCLUDING AUXILIARY FUEL TANKS) OR SELF-PROPELLED VEHICLES. TABLE 1 CLASSIFIED SHADED AREAS CLASS/DIVISION DESCRIPTION SYMBOL CLASS 1, DIVISION 1 FLAMMABLE GASES OR VAPORS, HIGHLY HAZARDOUS, I.E. IGNITABLE CONCENTRATIONS CONFINED IN A PIT. CLASS 1, DIVISION 2 LIQUID, VAPOR OR GASES WILL NORMALLY BE CONFINED WITHIN CLOSED CONTAINERS OR CLOSED SYSTEMS. ATTENTION: * UTILITY-OWNED UNDERGROUND FACILITIES ARE NOT ALLOWED BELOW THE SURFACE OF A CLASS 1, DIVISION 1 OR CLASS 1, DIVISION 2 LOCATION. a 20’-0” 20’-0” 1’-6” 1’-6” 1’-6” FIGURE 1 FRONT VIEW 5’-0” FILL PIPES BUILDING WALL WITH NO OPENING VENT PIPES 10’-0” 20’-0” FILL PIPES 10’-0” I DISPENSER 20’-0” II FIGURE 1 PLAN VIEW © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG316.1 1 OF 2 UNDERGROUND ELECTRIC SERVICE LATERAL GASOLINE DISPENSING & SERVICE STATIONS

INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I 5-FOOT RADIUS FROM TIGHT FILL CONNECTIONS, 10-FOOT RADIUS FROM LOOSE FILL CONNECTIONS. II UTILITY UNDERGROUND SERVICE LATERALS ARE NOT PERMITTED IN CLASS 1, DIVISION 1 OR CLASS 1, DIVISION 2 LOCATIONS. REFERENCE: a SEE SG318 FOR INSTALLATION NOTES. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG316.2 2 OF 2 UNDERGROUND ELECTRIC SERVICE LATERAL GASOLINE DISPENSING & SERVICE STATIONS

SCOPE: THIS STANDARD SHOWS REQUIREMENTS FOR INSTALLING UNDERGROUND ELECTRIC SERVICE LATERALS AND ELECTRIC METER PANELS IN PROXIMITY TO ABOVE GROUND PROPANE TANKS. BUILDING WALL 10’-0” PROPANE TANK 10’-0” FIGURE 1 FOR TANKS UP TO 500 GALLONS IN SIZE PLAN VIEW INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. UNDERGROUND ELECTRIC SERVICE LATERALS ARE NOT TO PASS WITHIN THE 10-FOOT CLEARANCE AREA AROUND THE PROPANE TANKS UP TO 500 GALLONS WHETHER IT IS ABOVE GROUND OR SUBTERRANEAN (25 FEET FOR ABOVE GROUND TANKS RANGING FROM 501 TO 2,000 GALLONS). © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG317.1 1 OF 4 UNDERGROUND ELECTRIC SERVICE LATERAL & METER PANELS IN PROXIMITY TO PROPANE TANKS

NOTES (CONT’D): II. FOR TANKS LARGER THAN 2,000 GALLONS, CONSULT SDG&E SERVICE STANDARDS. UTILITY-OWNED UNDERGROUND FACILITIES ARE NOT ALLOWED BELOW THE SURFACE OF A CLASS 1, DIVISION 1 OR CLASS 1, DIVISION 2 LOCATION. a III. ABOVE GROUND PROPANE TANKS: a. PROPANE TANKS COME IN THREE MAIN SIZES: 330, 500 AND 1,000 GALLONS. THE SIZE SELECTED NORMALLY DEPENDS ON THE PROPANE REQUIREMENTS AND THE SIZE OF THE STRUCTURE USING THE FUEL. b. ELECTRIC METER PANELS ARE A SOURCE OF IGNITION FOR PROPANE GAS AND SHALL BE INSTALLED IN COMPLIANCE WITH THE FOLLOWING CLEARANCE REQUIREMENTS: TABLE 1 RADIAL HORIZONTAL CLEARANCE REQUIREMENTS AROUND TANKS TANK SIZE RADIAL CLEARANCE (GALLONS) (FEET) UP TO 500 10 MINIMUM 501 TO 2,000 25 MINIMUM REFERENCE: a SEE INSTALLATION NOTES ON SG318. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG317.2 2 OF 4 UNDERGROUND ELECTRIC SERVICE LATERAL & METER PANELS IN PROXIMITY TO PROPANE TANKS

SCOPE: THIS STANDARD SHOWS REQUIREMENTS FOR INSTALLING UNDERGROUND ELECTRIC SERVICE LATERALS AND ELECTRIC METER PANELS IN PROXIMITY TO SUBTERRANEAN PROPANE TANKS. BUILDING WALL 10’-0” PROPANE TANK 10’-0” FIGURE 2 CLEARANCE REQUIREMENT FOR SUBTERRANEAN TANKS UP TO 2,000 GALLONS PLAN VIEW INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. UNDERGROUND ELECTRIC SERVICE LATERALS ARE NOT TO PASS WITHIN THE 10-FOOT CLEARANCE AREA AROUND THE PROPANE TANK WHETHER IT IS ABOVE GROUND OR SUBTERRANEAN. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG317.3 3 OF 4 UNDERGROUND ELECTRIC SERVICE LATERAL & METER PANELS IN PROXIMITY TO PROPANE TANKS

NOTES (CONT’D): II. FOR TANKS LARGER THAN 2,000 GALLONS, CONSULT SDG&E SERVICE STANDARDS. c III. SUBTERRANEAN PROPANE TANKS: a. SUBTERRANEAN TANKS UP TO 2,000 GALLONS REQUIRE A 10-FOOT MINIMUM HORIZONTAL CLEARANCE FROM SOURCES OF IGNITION. THE ONLY VISIBLE PART OF THESE TANKS IS THE RISER COVER, WHICH IS ABOUT 1-FOOT HIGH AND 1-FOOT DIAMETER. b. FOR THE PURPOSES OF PLANNING THE PLACEMENT OF AN UNDERGROUND ELECTRIC SERVICE LATERAL AND METER LOCATION, THE CUSTOMER IS RESPONSIBLE FOR PROVIDING THE TANK SIZE AND DIMENSION SPECIFICATIONS FOR SUBTERRANEAN TANKS, AND MARKING OUT THE FOOTPRINT OF THE TANK AT THE JOB SITE. THE 10-FOOT CLEARANCE REQUIREMENT WILL BE MEASURED FROM THE OUTSIDE EDGE OF THE MARKED OUT FOOTPRINT. REFERENCE: a. FOR LIQUEFIED PETROLEUM GAS CODE, SEE NFPA 58. b. SEE CALIFORNIA FIRE CODE: LIQUEFIED PETROLEUM GASES, CHAPTER 38. c SEE INSTALLATION NOTES ON SG318. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F

B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG317.4 4 OF 4 UNDERGROUND ELECTRIC SERVICE LATERAL & METER PANELS IN PROXIMITY TO PROPANE TANKS

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR INSTALLING UNDERGROUND ELECTRIC SERVICE LATERALS AND SERVICE AND METERING EQUIPMENT NEAR GASOLINE DISPENSING EQUIPMENT AND PROPANE TANKS. INSTALLATION: A. IF THE SERVICE LATERAL, USING THE SHORTEST PRACTICABLE ROUTE, WILL NOT EXTEND THROUGH A “HAZARDOUS (CLASSIFIED) LOCATION”, THE SERVICE AND METERING EQUIPMENT MAY BE LOCATED ON THE BUILDING. B. IF THE SERVICE LATERAL, USING THE SHORTEST PRACTICABLE ROUTE, WOULD EXTEND THROUGH A “HAZARDOUS (CLASSIFIED) LOCATION”, THE SERVICE AND METERING EQUIPMENT MUST BE GROUPED AND LOCATED OUTSIDE, AND PRIOR TO, THE “HAZARDOUS (CLASSIFIED) LOCATION”. THE CUSTOMER WOULD THEN EXTEND THEIR METERED CONDUCTORS AS PREMISES WIRING IN ACCORDANCE WITH REQUIREMENTS OF THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). C. IF THERE IS AN ACCEPTABLE LOCATION ON THE BUILDING FOR THE SERVICE AND METERING EQUIPMENT WHICH IS “OUTSIDE THE HAZARDOUS (CLASSIFIED) LOCATION”, AND ADDITIONAL FACILITIES COULD BE INSTALLED SO THE SERVICE LATERAL WOULD NOT

ENCROACH IN THE “HAZARDOUS (CLASSIFIED) LOCATION”, BUT WOULD NOT BE THE SHORTEST PRACTICABLE ROUTE FOR THE SERVICE LATERAL FROM THE SDG&E CLOSEST SOURCE, THE CUSTOMER MAY BE GIVEN THE OPTION TO: 1. LOCATE THEIR EQUIPMENT AS STATED IN B, OR 2. PAY THE TOTAL ESTIMATED RULE 2, I, SPECIAL FACILITIES AND MAINTENANCE, CHARGES FOR THE ADDITIONAL SERVICE LATERAL CONDUCTORS REQUIRED TO AVOID THE “HAZARDOUS (CLASSIFIED) LOCATION”. CAUTION: * CONFIRM THAT THE FUTURE EXPANSION OF TANKS, PUMPS, ETC., WILL NOT ENCROACH INTO THE AREA OF SDG&E’S SERVICE LATERAL CONDUCTORS INSTALLED WITHIN THE CUSTOMER’S CONDUIT. BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: a. REFER TO SG019 FOR MINIMUM CLEARANCE AND SEPARATION REQUIREMENTS OF ENERGIZED OVERHEAD CONDUCTORS FROM CONTAINERS OF FLAMMABLE OR EXPLOSIVE MIXTURES, SUCH AS PROPANE TANKS. © 1998 - 2021 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 07/19/2021 E

A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG318.1 1 OF 1 UNDERGROUND ELECTRIC SERVICE NEAR GASOLINE DISPENSING EQUIPMENT & PROPANE TANKS

SCOPE: THIS STANDARD PROVIDES CLEARANCE REQUIREMENTS FOR CUSTOMER-OWNED UNDERGROUND ELECTRIC SERVICE LATERAL CONDUIT, AND SUBSTRUCTURE(S) WHEN REQUIRED, FROM LEACH FIELDS. Z Y II UTILITY TRENCH LEACH LINE FIGURE 1 TRENCH TYPICAL PARCEL 1 II 2.9 AC. FIGURE 2 INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. SAN DIEGO COUNTY DEPARTMENT OF HEALTH SERVICES ESTABLISHES THE STANDARD FOR THE PROXIMITY OF LEACH LINES AND SEEPAGE PITS TO UTILITY TRENCHES. THIS STANDARD MAY AFFECT THE ROUTE AND POSITION OF CUSTOMER GAS AND ELECTRIC SERVICE LATERALS. II THERE SHALL BE A FIVE (5) TO ONE (1) SETBACK REQUIRED FROM ALL UTILITY TRENCHES TO THE TILE LINES (LEACH LINES) OR SEEPAGE PIT. THE SETBACK SHALL BE MEASURED FROM THE TOP OF THE UTILITY TRENCHES TO THE CLOSEST EDGE OF THE TILE LINE OR SEEPAGE PIT. THE DEPTH OF THE UTILITY TRENCH SHALL BE MEASURED FROM THE GROUND SURFACE TO THE BOTTOM OF THE TRENCH. © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

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NOTES (CONT’D): III. A 2-FOOT MINIMUM SEPARATIONS IS REQUIRED BETWEEN SERVICE LATERAL CONDUITS AND SEPTIC TANKS AND TIGHT LINES. IV. ALTHOUGH THE CUSTOMER OR THEIR CONTRACTOR HAS THE ULTIMATE RESPONSIBILITY FOR ADHERING TO THESE REQUIREMENTS, THE PROJECT PLANNER SHOULD BE AWARE OF THE LOCATION OF THE LEACH LINES IN ORDER TO AVOID ESTABLISHING SERVICE ROUTES THROUGH THESE AREAS. REFERENCE: NONE © 1998 - 2023 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC IPJ IPJ KRG 11/02/2023 F B FORMATTING EDM JIK - - 07/19/2021 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG319.2 2 OF 2 UNDERGROUND ELECTRIC LATERAL FROM LEACH FIELDS

SCOPE: THIS STANDARD DESCRIBES REQUIREMENTS FOR EXISTING SIDA SERVICE FOR PANEL REWIRES, UPGRADES AND RELOCATIONS. DEFINITIONS: • SIDA DESCRIPTION: SECONDARY-IN-DUCT ALUMINUM (SIDA) AND CABLE IN CONDUIT (CIC) IS A CABLE ASSEMBLY THAT INCLUDED INSULATED CONDUCTORS WITHIN FLEXIBLE DUCT. BOTH NAMES REFER TO THE SAME PRODUCT. THIS PRODUCT WAS PUT IN PRODUCTION IN 1968 AND DISCONTINUED THE USE AROUND 1978. INSTALLATION: A. CUSTOMERS REWIRING, UPGRADING, AND/OR RELOCATING THEIR SERVICE PANEL MUST ADHERE TO CURRENT SDG&E UNDERGROUND CONSTRUCTION STANDARDS (INCLUDING CONDUIT); HOWEVER, IF SIDA SERVICE EXISTS, IT MAY REMAIN PROVIDED THE FOLLOWING CONDITIONS ARE MET: 1. MAXIMUM PANEL SIZE IS NOT EXCEEDED BY SIDA CABLE SIZE AS SHOWN ON THE SIDA TABLE. 2. EXTENDING OR SPLICING FROM EXISTING SIDA IS NOT ALLOWED; NEW TERMINATION POINTS MUST BE AT OR BELOW EXISTING POINTS. 3. THE EXISTING SIDA SERVICE APPEARS TO BE IN GOOD CONDITION, FREE OF DEFECTS AND IMPERFECTIONS WHICH MAY IMPACT SAFETY AND RELIABILITY. 4.

IF, FOR ANY REASON, THE EXISTING SIDA SERVICE CANNOT BE UTILIZED, THE CUSTOMER MUST PROVIDE NEW TRENCH AND CONDUIT TO THE EXISTING SOURCE PER CURRENT SDG&E STANDARD SG309. TABLE 1 SIDA TABLE EXISTING EXISTING MAXIMUM PANEL SIDA TABLE CONDUIT SIZE REPLACEMENT (AL) (IN) (AMPS) #2 1 1/4 125 1/0 1 1/2 150 3/0 2 200 350 2 1/2 225 BILL OF MATERIALS: NONE NOTES: I. ELECTRIC SERVICE PANEL RELOCATIONS REQUIRE TRENCHING AND NEW CONDUIT FROM NEW PANEL LOCATION TO SDG&E SOURCE. II. INTERCEPTING SIDA SERVICE WITH A HANDHOLE, OR ANOTHER SUBSTRUCTURE IS NOT ALLOWED FOR A NEW PANEL. III. NON-PLASTIC CONDUIT, SUCH AS STEEL CONDUIT, DOES NOT MEET CURRENT SDG&E CONSTRUCTION STANDARDS. IV. THE PLANNER WILL DETERMINE WHETHER THE CUSTOMER MUST POTHOLE EXISTING SERVICE TO DETERMINE WHETHER SIDA EXISTS. POTHOLES ARE THE CUSTOMER’S RESPONSIBILITY AND DIGALERT NOTIFICATION IS REQUIRED PRIOR TO DIGGING. V. SOLAR READY METER PANELS: SOME MANUFACTURERS MAY MARKET “SOLAR READY” RESIDENTIAL METER PANELS THAT HAVE A 200 AMP BUS RATING BUT LIMIT

THE SIZE OF THE MAIN BREAKER FOR UTILITY SERVICE PURPOSES TO 125 AMP MAXIMUM FOR AN EXISTING #2 SIDA SERVICE OR 150 AMP MAXIMUM FOR AN EXISTING 1/0 SIDA SERVICE. THE MANUFACTURER LABELS THE METER PANEL ACCORDINGLY AS A 125 AMP OR A 150 AMP PANEL AND SPECIFIES THE MAXIMUM SIZE OF MAIN BREAKER. THIS ENABLES SDG&E TO CONTINUE SERVING A CUSTOMER WITH AN EXISTING SIDA SERVICE, AND THE CUSTOMER HAS THE BUS CAPACITY TO MEET CODE REQUIREMENTS FOR A LARGER PV INTERCONNECTION. THIS MANUFACTURER LISTING, LABELING AND THEREBY LIMITING THE SIZE OF THE MAIN BREAKER, IS THE BASIS FOR ALLOWING THE EXISTING SIDA TO REMAIN IN SERVICE. THE DERATING OF THE METER PANEL CAN ONLY BE DONE BY THE MANUFACTURER. DERATING A METER PANEL IS NOT ACCOMPLISHED BY A CUSTOMER OR THEIR AGENT CHANGING OUT THE MAIN BREAKER TO ONE OF LOWER AMPACITY. SDG&E PROJECT PLANNER/SERVICE PLANNER APPROVAL IS REQUIRED PRIOR TO CONSTRUCTION. REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

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PAGE SUBJECT 502 ELECTRIC SERVICE AND METERING EQUIPMENT ALPHABETICAL SUBJECT INDEX 503 GENERAL INFORMATION 504 ELECTRIC METER AND SERVICE LOCATION – COMMERCIAL AND RESIDENTIAL PREMISES 505 BARRIERS FOR SERVICE AND METERING EQUIPMENT 506 ELECTRIC METER ROOM 507 SINGLE OR MULTIPLE METER INSTALLATIONS – COMMERCIAL OR RESIDENTIAL APPLICATIONS 508 METER CABINET RECESS FOR SINGLE METER RESIDENTIAL APPLICATION ONLY 509 ELECTRIC METER CABINET – COMMERCIAL OR RESIDENTIAL MULTI-METER INSTALLATIONS 510 ELECTRIC METERING IN MID-RISE AND HIGH-RISE BUILDINGS 511 ELECTRIC SERVICE DISCONNECTS AND METER SERVICE DISCONNECTS 512 RESIDENTIAL SELF-CONTAINED SERVICE AND METERING EQUIPMENT 513 TEST-BYPASS FACILITIES FOR SAFETY SOCKETS 514 SAFETY SOCKET METER CANS 515 TRANSFORMER RATED METERS AND WALL-MOUNTED SERVICE AND METERING EQUIPMENT 516 METER TYPE AND SOCKET CLIP ARRANGEMENT 517 STANDARD SWITCHBOARD SERVICE SECTIONS 518 MOBILE HOME PARK SERVICE AND METER PEDESTALS 519 COMMERCIAL METER PEDESTALS 520 FIELD REPLACEMENT OF EXISTING 120V METER PEDESTAL 522 WIRELESS COMMUNICATIONS ON PRIVATE PROPERTY

523 WIRELESS COMMUNICATIONS PROVIDER – METERED ELECTRIC SERVICE 524 UNMETERED ELECTRIC SERVICE 525 METERING COMMUNICATIONS NOTE: 521 HAS BEEN INTENTIONALLY OMITTED. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 02/07/2025 E A NEW PAGE - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG501.1 1 OF 1 ELECTRIC SERVICE AND METERING EQUIPMENT TABLE OF CONTENTS

SUBJECT PAGE ELECTRIC SERVICE DISCONNECTS AND METER SERVICE DISCONNECTS..................................................................................... 511 GENERAL INFORMATION......................................................................................................................................................... 503 ADDITIONS, ALTERATIONS OR RENEWAL OF EXISTING SERVICE AND METERING EQUIPMENT.......................................... 504.2 ELECTRIC METER AND SERVICE LOCATION REQUEST.............................................................................................. 503, 504.2 EXISTING GAS METER BELOW ELECTRIC SERVICE AND METERING.................................................................................. 504.2 INGRESS AND EGRESS TO ELECTRIC SERVICE AND METERING EQUIPMENT..................................................................... 504.2 METER HEIGHTS........................................................................................................................................................... 504.1

METER MARKING.......................................................................................................................................................... 504.1 METERED AND UNMETERED CONDUCTORS....................................................................................................................... 503 METER SOCKET SEALING RINGS....................................................................................................................................... 503 READILY ACCESSIBLE DEFINITION................................................................................................................................... 503 SEALING OF METERS AND METERING EQUIPMENT............................................................................................................ 503 SEALING REQUIREMENTS................................................................................................................................................. 503

SERVICE ENTRANCE LIMITATIONS.................................................................................................................................... 503 METER LOCATIONS BARRIERS FOR SERVICE AND METERING EQUIPMENT........................................................................................................ 505 COMMERCIAL AND INDUSTRIAL.................................................................................................................................... 504.3 ELECTRIC METER CABINETS............................................................................................................................................. 509 ELECTRIC METER CABINET RECESS, SINGLE METER RESIDENTIAL APPLICATION................................................................. 508 ELECTRIC METER ROOMS................................................................................................................................................. 506

METER HEIGHTS........................................................................................................................................................... 504.1 METER MARKINGS........................................................................................................................................................ 504.1 METER PEDESTAL, COMMERCIAL 0–200A....................................................................................................................... 519.1 METER PEDESTAL, COMMERCIAL 600A MAXIMUM, MULTI-METER.................................................................................... 519.4 METER PEDESTAL, FIELD REPLACEMENT OF EXISTING 120V METER PEDESTAL................................................................... 520 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E

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SUBJECT PAGE METER PEDESTAL FOUNDATION DETAILS...................................................................................................................... 519.6 METER PEDESTAL, RESIDENTIAL...................................................................................................................................... 518 MID-RISE AND HIGH-RISE BUILDINGS.............................................................................................................................. 510 RESIDENTIAL............................................................................................................................................................... 504.2 UNACCEPTABLE METER LOCATIONS............................................................................................................................... 504.3 METER TYPE AND SOCKET CLIP ARRANGEMENT........................................................................................................................ 516

METERING COMMUNICATIONS................................................................................................................................................. 525 MOBILE HOME PARK SERVICE AND METERING EQUIPMENT....................................................................................................... 518 RESIDENTIAL SELF-CONTAINED SERVICE AND METERING EQUIPMENT COMBINATION PULL AND METER CANS FOR UG OR OH SERVICE............................................................... 512.1 – 512.4, 512.6 COMBINATION PULL AND METER CANS FOR UG SERVICE.......................................................................... 512.1, 512.3 – 512.7 EQUIPMENT CONNECTED AHEAD OF A MAIN SERVICE DISCONNECT................................................................................ 512.1 METER SOCKET CLOSING DEVICES................................................................................................................................ 512.1

METER SOCKET CONNECTIONS..................................................................................................................................... 512.1 SELF-CONTAINED METER SOCKETS DEFINED................................................................................................................. 512.1 SELF-CONTAINED METER SOCKETS............................................................................................................................... 512.1 SAFETY SOCKET METER CANS.................................................................................................................................................. 514 ALUMINUM CONDUCTORS IN SAFETY SOCKET METER CANS............................................................................................ 514.5 NEUTRAL OR GROUND CONDUCTOR IN SAFETY SOCKET METER CANS............................................................................. 514.5 MULTIPLE SAFETY SOCKET CAN GROUPING ARRANGEMENTS FOR

COMMERCIAL INSTALLATIONS WITH SELF-CONTAINED METERS..................................................................................... 514.3 SAFETY SOCKET CAN 100A (STANDARD DUTY)............................................................................................................... 514.1 SAFETY SOCKET CAN 200A (HEAVY DUTY)..................................................................................................................... 514.2 SAFETY SOCKET METER CAN USED FOR UNDERGROUND SERVICE................................................................................... 514.4 WIRING OF SAFETY SOCKET METER CANS..................................................................................................................... 514.5 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG502.2 2 OF 4 ELECTRIC SERVICE AND METERING EQUIPMENT ALPHABETICAL SUBJECT INDEX

SUBJECT PAGE STANDARD SWITCHBOARD SERVICE SECTIONS........................................................................................................................ 517 SWITCHBOARD BUS/WIRE TAP DRAWINGS FOR APPROVAL............................................................................................. 517.1 ELECTRIC UTILITY SERVICE EQUIPMENT REQUIREMENTS COMMITTEE (EUSERC)............................................................. 517.1 MANUFACTURER’S DRAWINGS FOR APPROVAL............................................................................................................... 517.1 METER SOCKET AND TEST SWITCH PANEL LAYOUT........................................................................................................ 517.9 SWITCHBOARD SERVICE SECTION DEFINED.................................................................................................................. 517.1 SWITCHBOARD SERVICE SECTIONS PICTURED...................................................................................................... 517.3-517.6

STANDARD SWITCHBOARD SERVICE SECTION 0–600V.................................................................................................... 517.3 STANDARD SWITCHBOARD SERVICE SECTION 0–600V OUTDOOR/RAINTIGHT ENCLOSURE............................................... 517.6 STANDARD SWITCHBOARD SERVICE SECTION, 0-600V METER SOCKET AND TEST SWITCH PANEL LAYOUT.….…….……..….…517.9 STANDARD SWITCHBOARD SERVICE SECTION 0–600V FOR SELF-CONTAINED METERING, 200A MAXIMUM METER SOCKET CAPACITY SINGLE-PHASE, 3-WIRE AND THREE-PHASE, 4-WIRE SERVICE....................... 517.11 STANDARD SWITCHBOARD SERVICE SECTION, 0–600V, INSTRUMENT TRANSFORMER COMPARTMENT, 201-400A SINGLE-PHASE SERVICE.......................................................... 517.14 STANDARD SWITCHBOARD SERVICE SECTION, 0–600V, INSTRUMENT TRANSFORMER COMPARTMENT 201-1,000A, THREE-PHASE, 3 AND 4-WIRE SERVICES.................................................... 517.15 STANDARD SWITCHBOARD SERVICE SECTION, 0-600V, INSTRUMENT

TRANSFORMER COMPARTMENT 1,001-3,000A, THREE-PHASE, 3 AND 4-WIRE SERVICES................................................. 517.17 STANDARD SWITCHBOARD SERVICE SECTION, 0-600V, 1,001-3,000A, REMOVABLE LINK AND CT SUPPORT FOR INSTRUMENT TRANSFORMER COMPARTMENTS WITH 4-INCH BUS....................................... 517.19 STANDARD SWITCHBOARD SERVICE SECTION, 0-600V, INSTRUMENT TRANSFORMER COMPARTMENT 3,001-4,000A, THREE-PHASE, 3 AND 4-WIRE SERVICES................................................. 517.21 STANDARD SWITCHBOARD SERVICE SECTION, 0-600V, 3,001A AND LARGER, REMOVABLE LINK AND CT SUPPORT FOR INSTRUMENT TRANSFORMER COMPARTMENTS WITH 5-INCH BUS....................................... 517.23 TEST-BYPASS FACILITIES FOR SAFETY SOCKETS............................................................................................................... 513 VENTILATION............................................................................................................................................................... 517.2

TRANSFORMER RATED METERS AND WALL-MOUNTED SERVICE AND METERING EQUIPMENT [CURRENT TRANSFORMER (CT)]...... 515 COMBINATION CT AND METER SOCKET CAN-OH SERVICE-WALL MOUNTED........................................................... 515.1, 515.5 COMBINATION CT AND METER SOCKET CAN-UG SERVICE-WALL MOUNTED............................................................ 515.1, 515.5 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG502.3 3 OF 4 ELECTRIC SERVICE AND METERING EQUIPMENT ALPHABETICAL SUBJECT INDEX

SUBJECT PAGE CT MOUNTING BASE, 0–400A, 0–600V SERVICE.............................................................................................................. 515.2 CT MOUNTING BASE, 201–800A, 0–600V SERVICE.......................................................................................................... 515.3 METER SERVICE DISCONNECT....................................................................................................................................... 515.1 SOCKETS FOR TRANSFORMER RATED METERS............................................................................................................... 515.1 UNMETERED ELECTRIC SERVICE.............................................................................................................................................. 524 WIRELESS COMMUNICATIONS ON PRIVATE PROPERTY............................................................................................................. 522

WIRELESS COMMUNICATIONS PROVIDER – METERED ELECTRIC SERVICE.................................................................................. 523 WORKING SPACE, ELECTRIC SERVICE AND METERING EQUIPMENT, 0–600V............................................................................ 504.1 WORKING SPACE FOR NON-RESIDENTIAL SERVICE PANELS REQUIRES A PERMANENT CONCRETE SLAB.................................... 504.4 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG502.4 4 OF 4 ELECTRIC SERVICE AND METERING EQUIPMENT ALPHABETICAL SUBJECT INDEX

SCOPE: THIS STANDARD PROVIDES GENERAL INFORMATION ON ELECTRIC SERVICE AND METERING EQUIPMENT. DEFINITIONS: • READILY ACCESSIBLE: CAPABLE OF BEING REACHED QUICKLY AND CONVENIENTLY 24-HOURS A DAY FOR CONSTRUCTION, OPERATION, MAINTENANCE, INSPECTION, TESTING, OR METER READING WITHOUT REQUIRING THOSE SEEKING ACCESS TO CLIMB OVER OR REMOVE OBSTACLES; OR TO OBTAIN SPECIAL PERMISSION OR SECURITY CLEARANCES. TRUCK ACCESS MAY BE REQUIRED. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. ELECTRIC METER AND SERVICE LOCATION REQUEST: CONTACT THE SERVICE PLANNER AT THE REGIONAL DESIGN AND PROJECT MANAGEMENT OFFICE CLOSEST TO THE JOB LOCATION FOR AN “ELECTRIC METER & SERVICE LOCATION” FORM BEFORE STARTING CONSTRUCTION. YOU MAY ALSO REQUEST VIA THE INTERNET AT: HTTPS://WWW.SDGE.COM/APPLY-SERVICE a II. METERED AND UNMETERED CONDUCTORS: LINE SIDE (UNMETERED) AND LOAD SIDE (METERED) CONDUCTORS ARE PROHIBITED FROM OCCUPYING THE SAME RACEWAY OR ENCLOSURE BY BOTH SDG&E (UTILITY) POLICY AND THE CALIFORNIA ELECTRICAL CODE. EXCEPTION: METER SOCKETS AND SAFETY SOCKET CANS. III.

METER SOCKET SEALING RINGS: METER SOCKETS SHALL BE EQUIPPED WITH APPROVED SEALING RINGS AS A PART OF THE METER SOCKET INSTALLATION AND SHALL BE PROVIDED BY THE MANUFACTURER. RINGLESS METER SOCKETS ARE NOT ACCEPTABLE. IV. SEALING OF METERS AND METERING EQUIPMENT: ALL METERS AND ENCLOSURES FOR METERS, METERING EQUIPMENT, AND SERVICE ENTRANCE EQUIPMENT ON THE LINE SIDE OF THE METER, EXCEPT AS APPROVED FOR ACCESS TO REPLACE FUSES USED FOR OVER-CURRENT PROTECTION, WILL BE SEALED BY THE UTILITY. THE UTILITY SEAL SHALL NOT BE BROKEN EXCEPT BY AN AUTHORIZED REPRESENTATIVE OF THE UTILITY, OR WITH THE UTILITY’S PERMISSION GRANTED IN RESPONSE TO A REQUEST WARRANTING APPROVAL. NO PERSON IS PERMITTED TO TAMPER, OR IN ANY WAY INTERFERE, WITH A METER OR ITS CONNECTIONS AS PLACED BY THE UTILITY. ALL REMOVABLE ACCESS COVERS FOR COMPARTMENTS CONTAINING UNMETERED CONDUCTORS SHALL BE SEALABLE. WHEN A RACEWAY, CONDUIT OR CONDULET IS NECESSARY FOR UNMETERED CONDUCTORS, IT SHALL BE SEALABLE. NO REMOVABLE PANEL OR COVER REQUIRING

SEALING SHALL BE LOCATED BEHIND OTHER PANELS, COVERS OR DOORS (EXCEPT NEMA 3R OUTDOOR RAINTIGHT ENCLOSURE DOORS). ALL 400A, AND ABOVE, SERVICE SWITCHES OR BREAKERS SHALL HAVE PROVISIONS FOR LOCKING IN THE OPEN/OFF POSITIONS. V. SEALING REQUIREMENTS: SEALING LATCHES, STUD AND WING-NUTS, OR SEALING SCREWS SHALL BE PROVIDED AS THE MEANS OF SEALING REMOVABLE OR HINGED ACCESS COVERS. STUDS AND WING-NUT ASSEMBLIES SHALL CONSIST OF A 1/4-INCH X 20 (MINIMUM) STUD AND AN ASSOCIATED WING-NUT, EACH DRILLED 1/16-INCH (MINIMUM) FOR SEALING PURPOSES. SEALING SCREWS SHALL BE DRILLED 1/16-INCH (MINIMUM) FOR SEALING PURPOSES. LATCHING DEVICES SHALL BE DESIGNED TO PERMIT POSITIVE LOCKING AND BE MADE OF A DURABLE CORROSION RESISTANT MATERIAL. VI. SERVICE ENTRANCE LIMITATIONS: SINGLE-PHASE SERVICE IS NORMALLY LIMITED TO 400A MAXIMUM. INDIVIDUAL THREE-PHASE SWITCHBOARDS ARE LIMITED TO 4,000A MAXIMUM. b REFERENCE: a SEE SG021. b FOR FURTHER INFORMATION, SEE SWITCHBOARD SERVICE SECTION ON SG517. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

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SCOPE: THIS STANDARD DESCRIBES ELECTRIC METER AND SERVICE LOCATION REQUIREMENTS FOR COMMERCIAL AND RESIDENTIAL PREMISES. METER AND C.T. SECTION (OR MAIN, METERS AND UNDERGROUND IF MULTI-METERS) DISCONNECTS PULL SECTION WORKING SPACE IV FRONT XIII 3’-0” I II MIN. 6’-0” II VI VII 6’-6” MIN. IV MIN. V HEIGHT 3’-0” MIN. DEPTH III XII FIGURE 1 WORKING SPACE – ELECTRIC SERVICE AND METERING EQUIPMENT, 0–600V VIII IX XI m INSTALLATION: GENERAL INFORMATION: A ON NEW INSTALLATIONS, IT IS NECESSARY THAT THE LOCATION FOR THE METER AND ITS RELATED SERVICE DISCONNECT BE APPROVED IN WRITING BY AN SDG&E (UTILITY) PROJECT PLANNER. THIS CAN BE ACCOMPLISHED BY THE CUSTOMER OR CONTRACTOR CALLING THE UTILITY’S NEAREST REGIONAL DESIGN AND PROJECT MANAGEMENT OFFICE AND REQUESTING AN ELECTRIC METER & SERVICE LOCATION FORM, OR VIA THE INTERNET AT: HTTPS://WWW.SDGE.COM/APPLY-SERVICE a B THE LOCATION FOR THE METER AND SERVICE DISCONNECT SHALL COMPLY WITH APPLICABLE CODES, LAWS AND ORDINANCES OF THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ), AND WITH THE REQUIREMENTS OF THE UTILITY’S SERVICE

STANDARDS & GUIDE. C METER HEIGHTS: 1. WHEN METERS ARE LOCATED IN A METER ROOM OR WHEN FULLY ENCLOSED IN A CABINET, THE MINIMUM HEIGHT OF THE METER SOCKET MAY BE 3 FEET, AND THE MAXIMUM HEIGHT SHALL NOT EXCEED 6’-3”. THESE HEIGHTS ARE MEASURED FROM THE STANDING SURFACE TO THE CENTERLINE OF THE METER SOCKET. CABINETS SHALL NOT IMPAIR WORKING SPACE. 2. WHEN METERS ARE WALL - OR SURFACE-MOUNTED, BUT NOT LOCATED IN A METER ROOM OR CABINET, THE MINIMUM HEIGHT OF THE METER SOCKET SHALL BE 4 FEET AND MAXIMUM HEIGHT SHALL NOT EXCEED 6’-3”. THESE HEIGHTS ARE MEASURED FROM THE STANDING SURFACE TO THE CENTERLINE OF THE METER SOCKET. EXCEPTION: FOR MULTI-METER PANELS LOCATED ON AN EXTERIOR WALL, THE MINIMUM METER HEIGHT MAY BE REDUCED TO 36 INCHES. b © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG504.1 1 OF 6 ELECTRIC METER AND SERVICE LOCATION COMMERCIAL AND RESIDENTIAL PREMISES

INSTALLATION (CONT’D): D METER MARKING: 1. EACH METER SOCKET AND ITS RELATED SERVICE DISCONNECT SHALL BE CLEARLY AND PERMANENTLY MARKED WITH MINIMUM 1/2-INCH NUMBER/LETTERS BY THE CONTRACTOR OR CUSTOMER TO INDICATE THE OCCUPANCY OR LOAD SERVED. MARKING WITH FELT PEN, PIGMENTED INK, OR FINGERNAIL POLISH IS NOT ACCEPTABLE. 2. EXAMPLES OF PERMANENT MARKING ARE: AN IDENTIFICATION PLATE SECURELY FASTENED BY A MEANS ACCEPTABLE TO THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). COMMERCIALLY AVAILABLE DECALS 3. IDENTIFICATION MEANS A STREET, APARTMENT, OR SUITE NUMBER. 4. EXCEPTIONS: IN A MULTI-METERING SECTION WHERE THE SERVICE DISCONNECT IS LOCATED IMMEDIATELY ADJACENT TO THE METER SOCKET (TO THE SIDE), IT IS ACCEPTABLE TO MARK ONLY THE SERVICE DISCONNECT. AT THE OPTION OF THE UTILITY, MARKING MAY BE OMITTED OR DONE IN OTHER MANNERS FOR A SINGLE-FAMILY RESIDENCE. E WHENEVER ANY ADDITION, ALTERATION OR RENEWAL IS CONTEMPLATED IN EXISTING SERVICE LATERAL CONDUITS, SERVICE ENTRANCE CONDUCTORS OR METERING EQUIPMENT, THE CUSTOMER OR CONTRACTOR SHALL CONTACT THE AREA PLANNER FOR

AN APPROVED ELECTRIC METER & SERVICE LOCATION FORM. THIS IS IMPERATIVE TO PROVIDE ADVICE REGARDING CORRECTION OF ANY EXISTING UNACCEPTABLE CONDITIONS. F. EXISTING ELECTRICAL SERVICE AND METERING EQUIPMENT LOCATED ABOVE AN EXISTING GAS METER SET ASSEMBLY (MSA) IS CONSIDERED NON-COMPLIANT WITH CURRENT STANDARDS BUT MAY REMAIN AS IS. HOWEVER, ANY UPGRADES AND/OR REWIRES OF THE ELECTRICAL SERVICE AND METERING EQUIPMENT WILL REQUIRE THE RELOCATION OF EITHER THE ELECTRIC OR GAS SERVICE. G ADDITIONAL METERS MAY BE GROUPED WITH THOSE ALREADY IN SERVICE PROVIDED THE EXISTING SERVICE AND METER LOCATION IS ACCEPTABLE TO THE UTILITY. THE ADDED SERVICE EQUIPMENT MUST BE LOCATED AND INSTALLED IN CONFORMANCE WITH APPLICABLE CODES, LAWS AND ORDINANCES ENFORCED BY THE AHJ, AND WITH THE REQUIREMENTS OF THE UTILITY. H. ALL METERS SERVING MULTIPLE BUILDINGS OR OTHER REMOTE LOADS MUST BE GROUPED ON OR AT THE BUILDING OR STRUCTURE WHERE THE UTILITY’S SERVICE CONNECTION IS MADE. c J. METER LOCATIONS AND SERVICE CONNECTIONS ON EXTERIOR WALLS OF BEDROOMS OR NORMALLY OCCUPIED SPACES SHOULD

BE AVOIDED WHENEVER POSSIBLE. K THE MINIMUM INGRESS AND EGRESS TO SERVICE EQUIPMENT AND METER LOCATIONS IS 24 INCHES IN WIDTH. THIS REQUIREMENT ALLOWS A SAFE ACCESS AND EXIT ROUTE FOR INSTALLATION, TESTING AND MAINTENANCE OF THE SERVICE AND METERING EQUIPMENT. METER LOCATIONS – RESIDENTIAL: L FOR SINGLE AND MULTI-FAMILY RESIDENTIAL BUILDINGS, METERS AND METERING EQUIPMENT MAY BE INSTALLED: 1. OUTDOORS AND MOUNTED ON, OR RECESSED IN, AN EXTERIOR BUILDING WALL. A B C D E G b d 2. IN A ROOM WITHIN A BUILDING, APPROVED BY THE UTILITY FOR THE LOCATION OF ELECTRIC METERS, WITH PROVISION FOR PROPER ILLUMINATION, AND WITH ACCESS ONLY BY A DOOR OPENING TO THE OUTSIDE OF THE BUILDING. e M. FOR MULTI-FAMILY RESIDENTIAL BUILDINGS LESS THAN THREE FLOORS, METERS AND METERING EQUIPMENT ARE TO BE GROUPED IN ONE CENTRAL LOCATION THAT IS READILY ACCESSIBLE TO THE UTILITY 24-HOURS A DAY IN ACCORDANCE WITH INSTALLATION NOTE L. L f © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

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INSTALLATION (CONT’D): N. FOR ELECTRICAL METERING IN MID-RISE AND HIGH-RISE BUILDINGS, CONSULT WITH THE UTILITY PROJECT PLANNER FOR APPROVAL OF METER AND METERING EQUIPMENT LOCATIONS IN THE EARLY PLANNING PHASES OF THE PROJECT TO AVOID RE- ENGINEERING AND POSSIBLE DELAYS. g METER LOCATIONS – COMMERCIAL AND INDUSTRIAL: O FOR SINGLE-OCCUPANCY BUILDINGS, METERS AND METERING EQUIPMENT MAY BE INSTALLED: 1. OUTDOORS AND MOUNTED ON, OR RECESSED IN, AN EXTERIOR BUILDING WALL. b 2. IN A ROOM WITHIN A BUILDING, APPROVED BY THE UTILITY FOR THE LOCATION OF ELECTRIC METERS, WITH PROVISION FOR PROPER ILLUMINATION, AND WITH ACCESS ONLY BY A DOOR OPENING TO THE OUTSIDE OF THE BUILDING. e P. FOR MULTI-OCCUPANCY BUILDINGS NOT EXCEEDING TWO FLOORS, METERS AND METERING EQUIPMENT ARE TO BE GROUPED IN ONE CENTRAL LOCATION THAT IS READILY ACCESSIBLE 24-HOURS A DAY TO UTILITY PERSONNEL IN ACCORDANCE WITH THE CONDITIONS PRESCRIBED BY INSTALLATION NOTE O. O f Q. FOR ELECTRICAL METERING IN MID-RISE AND HIGH-RISE BUILDINGS, CONSULT WITH THE UTILITY’S PLANNER FOR APPROVAL OF

METER AND METERING EQUIPMENT LOCATIONS IN THE EARLY PLANNING PHASES OF THE PROJECT TO AVOID RE-ENGINEERING AND POSSIBLE DELAYS. g R. FOR SERVICE STATIONS, THE UTILITY’S UNDERGROUND SERVICE LATERAL CONDUCTORS MAY NOT EXTEND THROUGH A HAZARDOUS (CLASSIFIED) CLASS 1 LOCATION AS DEFINED BY ARTICLE 514 OF THE CALIFORNIA ELECTRICAL CODE. THE UNDERGROUND SERVICE AND METERING EQUIPMENT SHALL BE LOCATED OUTSIDE, AND PRIOR TO, THE HAZARDOUS AREA AT A LOCATION APPROVED BY THE UTILITY’S PLANNER. h UNACCEPTABLE METER LOCATIONS: S. FOR REASONS OF PUBLIC SAFETY, MAINTENANCE OF SERVICE, AND RELIABILITY OF METERING, IT IS NOT PERMISSIBLE TO INSTALL METERS AND METERING EQUIPMENT AS FOLLOWS: 1. INSIDE ANY BUILDING, UNLESS LOCATED WITHIN AN ACCEPTABLE ELECTRIC METER ROOM. e 2. IN COMMERCIAL OR RESIDENTIAL CARPORTS OR GARAGES, OR UNDER A PATIO COVER. 3. IN A LOCATION NOT READILY ACCESSIBLE 24-HOURS A DAY FOR READING, MAINTENANCE, OR REPLACEMENT OF THE METERING EQUIPMENT BY THE UTILITY. i 4. IN A SUBSTATION AREA OR IN A TRANSFORMER VAULT CONTAINING TRANSFORMER(S) OR MEDIUM-VOLTAGE EQUIPMENT. 5.

IN ANY LOCATION WHICH IS HAZARDOUS OR UNSUITABLE FOR ENTRY BY METER READERS OR SERVICE PERSONNEL, E.G., UNCONTROLLED OR UNRESTRAINED ANIMALS, ETC. 6. ON ANY SURFACE SUBJECT TO EXCESSIVE VIBRATION. 7. IN REST, BATH, SHOWER, POWDER, OR TOILET ROOM. 8. IN AN ELEVATED AREA (SUCH AS BALCONY OR MEZZANINE) OR A DEPRESSED AREA (SUCH AS A BASEMENT, CELLAR OR UNDERGROUND ROOM) THAT DOES NOT HAVE ACCESS BY MEANS OF A STAIRWAY OF NORMAL RISE (4 TO 7 INCHES) AND RUN (11-INCH MINIMUM) CONFORMING TO BUILDING CODE REQUIREMENTS. SHIPBOARD LADDERS ARE UNACCEPTABLE FOR INGRESS AND EGRESS. MINIMUM HEADROOM OF 6’-6” MUST BE MAINTAINED IN ALL CASES. 9. IN A PLACE WHERE EXCESSIVE MOISTURE, FUMES, DUST OR SIMILAR DETERIORATING AGENTS WILL INTERFERE WITH ITS OPERATION, UNLESS IT IS ENCLOSED IN A MANNER APPROVED BY THE UTILITY. FOR EXAMPLE, AT A CARWASH IN AN AREA EXPOSED TO EXCESSIVE MOISTURE AND DETERIORATING AGENTS, SERVICE AND METERING EQUIPMENT IS NOT ALLOWED. 10. IN A ROOM WHICH DOES NOT MEET THE REQUIREMENTS OF AN ELECTRIC METER ROOM. e 11. ON POLES OWNED BY THE UTILITY. j

© 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG504.3 3 OF 6 ELECTRIC METER AND SERVICE LOCATION COMMERCIAL AND RESIDENTIAL PREMISES

INSTALLATION (CONT’D): UNACCEPTABLE METER LOCATIONS (CONT’D): 12. ON BUILDINGS OR OTHER STRUCTURES THAT ARE NOT DIRECTLY SERVED BY THE UTILITY’S SERVICE CONNECTION. 13. MEDIUM-VOLTAGE INSTALLATIONS THAT DO NOT HAVE VEHICLE ACCESS TO THE SERVICE AND METERING EQUIPMENT. 14. DIRECTLY OVER ANY STAIRWAY, RAMP, OR STEPS. 15. IN ANY AREA PROTECTED BY ALARM SYSTEMS, SECURITY GATES OR DOORS, GUARD DOGS, ETC., UNLESS APPROVED BY THE UTILITY. i 16. ON ANY PORTION OF A BUILDING WHERE FUTURE LANDSCAPING, FENCING OR OTHER BUILDING CONSTRUCTION WILL MAKE THE METER(S) INACCESSIBLE. BILL OF MATERIALS: NONE NOTES: I TO PERMIT ACCESS TO THE METERING INSTALLATION AND TO PROVIDE SAFE WORKING CONDITIONS FOR PERSONNEL, A WORKING AND STANDING SPACE ENTIRELY ON THE PROPERTY OF THE CUSTOMER IS TO BE PROVIDED IN FRONT OF ALL SERVICE AND METERING EQUIPMENT. k II A MINIMUM OF 3 FEET CLEAR AND LEVEL WORK SPACE IS REQUIRED FOR UNDERGROUND PULL SECTIONS, CURRENT TRANSFORMER METERING SECTIONS, AND METERING EQUIPMENT. PULL CANS/SECTIONS REQUIRING 5-INCH CONDUITS MUST

ALLOW A MINIMUM OF 6 FEET CLEAR AND LEVEL WORKING SPACE IN FRONT OF THE PULL CAN/SECTION. VERIFY LOCATION OF PULL SECTIONS WITH THE SDG&E PLANNER PRIOR TO INSTALLATION. THE WORKING SPACE IS TO BE KEPT CLEAR AND UNOBSTRUCTED. III THE WIDTH AND DEPTH OF THE WORKING SPACE MUST ALLOW READY ACCESS TO COMPLETE THE SERVICE AND METERING INSTALLATION, AND IN NO CASE BE LESS THAN 3 FEET. K IV METER HEIGHT WILL BE MEASURED FROM THE STANDING SURFACE OF THE WORKING SPACE TO THE CENTERLINE OF THE METER SOCKET. THE HEIGHT CLEARANCES FOR THE WORKING SPACE MUST BE NO LESS THAN 6’-6” AS MEASURED FROM THE CLEAR AND LEVEL WORKING SURFACE TO ANY OVERHEAD OBSTRUCTION. C V EQUIPMENT ASSOCIATED WITH THE ELECTRICAL EQUIPMENT AND INSTALLED BELOW THE METER PANEL(S) MAY EXTEND INTO THE WORKING SPACE UP TO 6 INCHES. VI WHEN NON-RAINTIGHT SERVICE EQUIPMENT IS INSTALLED WITHIN A BUILDING ON AN ELEVATED PORTION OF THE FLOOR, OR "HOUSEKEEPING PAD", THE PAD MUST BE FLUSH WITH THE SERVICE EQUIPMENT. a. IF A SWITCHBOARD IS INSTALLED ON A HOUSEKEEPING PAD OR SLAB GREATER THAN 2 1/2 INCHES THICK, A METER HEIGHT

PROBLEM COULD RESULT. THE 6’-3” MAXIMUM ALLOWABLE METER HEIGHT APPLIES TO ALL INSTALLATIONS. VII WHEN OUTDOOR RAINTIGHT SERVICE EQUIPMENT IS INSTALLED ON A HOUSEKEEPING PAD, THE HOUSEKEEPING PAD MUST BE LEVEL AND EXTEND A MINIMUM OF 3 FEET MEASURED FROM THE FACE OF THE METER PANEL, OR 6 FEET WHEN 5-INCH CONDUIT IS REQUIRED. IF THE ENCLOSURE DOORS ARE WIDER THAN 3 FEET, THE HOUSEKEEPING PAD SHALL EXTEND 1-INCH BEYOND THE OUTER EDGE OF THE EQUIPMENT DOORS WHEN OPENED AT 90 DEGREES. l VIII FOR 480V SERVICE, CONSULT WITH THE AHJ FOR THEIR REQUIREMENTS. IX TO MAINTAIN A SAFE, CLEAR, AND LEVEL WORKING AREA IN FRONT OF NEW OR EXISTING NON-RESIDENTIAL METER AND SERVICE EQUIPMENT, A CONCRETE SLAB ACCEPTABLE TO THE UTILITY INSPECTOR IS REQUIRED. THIS ALSO APPLIES TO RESIDENTIAL LIVING UNITS EXCEEDING TWO IN NUMBER ON THE SAME PREMISES, WHICH ARE CLASSIFIED AS A COMMERCIAL ENTERPRISE AND PREMISES. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

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NOTES (CONT’D): XI IN ADDITION, THE CONCRETE SLAB IS TO EXTEND A MINIMUM OF 6 FEET CLEAR AND LEVEL FOR WORKING SPACE IN FRONT OF SERVICE CABLE TERMINATING PULL SECTIONS WHEN 5-INCH SERVICE CONDUIT IS REQUIRED. FOR DRAINAGE PURPOSES, THE SLOPE OF THE WORKING SPACE IS NOT TO EXCEED 1/4-INCH PER FOOT SLOPING AWAY FROM THE EQUIPMENT. XII 3 FEET MINIMUM WIDTH OR LENGTH OF SERVICE EQUIPMENT, WHICHEVER IS GREATER XIII REQUIRED CLEAR AND LEVEL WORKING SPACE REFERENCE: a SEE SG021. b SEE SG507. c SEE SG008. d SEE SG508. e FOR ADDITIONAL ELECTRIC METER ROOM AND LOCKING REQUIREMENTS, SEE SG506. f FOR ELECTRIC SERVICE POLICIES, SEE SG011 AND SG012. g SEE SG510: ELECTRICAL METERING IN MID-RISE AND HIGH-RISE BUILDINGS. h SEE SG316 AND SG318. i FOR DEFINITION OF “READILY ACCESSIBLE”, SEE SG503. j FOR CUSTOMER-OWNED METER POLE REQUIREMENTS, SEE SG203, SG204, AND SG205. k FOR BARRIER REQUIREMENTS, SEE SG505. l FOR OUTDOOR RAINTIGHT ENCLOSURE (NEMA 3R) REQUIREMENTS, SEE SG517. m FOR MEDIUM-VOLTAGE SWITCHGEAR, SEE SG SECTION 600. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

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SCOPE: THIS IS A CAUTIONARY NOTE FOR THOSE INSTALLING HOUSEKEEPING PADS UNDER FREE STANDING METERING EQUIPMENT WITHIN A METER ROOM. 6’-0 1/2” 6’-3” MAX. MAX. 2 1/2” MAX. A 1 9 36” MIN. WORKING B SPACE FIGURE 1 FIGURE 1 FRONT VIEW TABLE 1 SIDE VIEW SEE TABLE 1 DESCRIPTION LIST ITEM DESCRIPTION 1 PAD, HOUSEKEEPING INSTALLATION: A PLACING FREE-STANDING METER PANELS DIRECTLY ON THE FLOOR IS PREFERRED, BUT IF A HOUSEKEEPING PAD IS REQUIRED IT WILL RAISE THE METER HEIGHTS. GENERALLY, EQUIPMENT MANUFACTURERS MAY ALLOW 2 ½ INCHES FOR THIS. HOUSEKEEPING PADS INSTALLED HIGHER THAN 2 ½ INCHES MAY RAISE THE CENTERLINE OF THE METER ON THE PANEL ABOVE THE STANDARD 6 FEET 3 INCHES MAXIMUM. IT IS CUSTOMER RESPONSIBILITY TO ENSURE THE HEIGHT TO CENTERLINE OF METER DOES NOT EXCEED 6 FEET 3 INCHES MEASURED FROM STANDING SURFACE OF THE WORKING SPACE. C B THE FRONT OF THE HOUSEKEEPING PAD SHALL BE FLUSH WITH THE FACE OF THE PANEL. DO NOT EXTEND PAD OUT INTO THE ROOM BEYOND FACE OF PANEL POSING A TRIPPING HAZARD. C

C THIS REQUIREMENT IS A CONDITION OF RECEIVING SERVICE AND THE CUSTOMER IS RESPONSIBLE FOR MAKING CORRECTIONS IF THE REQUIREMENT IS NOT MET. BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: a. FOR WORKING SPACE REQUIREMENTS, SEE SHEET 1. b. FOR OUTDOOR NEMA 3R RAINTIGHT SWITCHBOARDS, SEE SG517. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D Indicates Latest Revision Completely Revised X New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG504.6 6 OF 6 ELECTRIC METER ROOM HOUSEKEEPING PADS AND METER HEIGHT

SCOPE: THIS STANDARD DESCRIBES REQUIREMENTS FOR BARRIERS FOR ELECTRIC SERVICE AND METERING EQUIPMENT. 3” CONCRETE RAGS PULL CAN/SECTION OR METERS HOLLOW 3’-0” MIN. C D 3’-0” A 4’-0” 4’-0” MAX. MAX. 6’-0” 3’-0” FINAL MIN. C D PARKING SPACES OR GRADE C D VEHICULAR TRAFFIC 4’-0” MAX. 2’-6” CONCRETE C D B 6” OR 1’-0” PULL CAN/SECTION OR METERS FIGURE 1 FIGURE 2 NON-REMOVABLE BARRIER POST DETAIL ATTENTION: * METERS LOCATED ON A WALL ADJACENT TO ANY PARKING AREA OR AREA ACCESSIBLE TO VEHICULAR TRAFFIC MUST BE PROTECTED BY NON-REMOVABLE BARRIERS. WHEEL STOPS AND REMOVABLE BARRIERS ARE NOT ACCEPTABLE SUBSTITUTES. MAINTAIN A MINIMUM OF 3 FEET CLEAR AND LEVEL WORKING SPACE IN FRONT OF THE CABINETS OR ENCLOSURES. BARRIERS MUST BE SO POSITIONED TO ALLOW THE DOORS TO BE OPENED 90 DEGREES. INSTALLATION: A USE 4-INCH STEEL PIPE, BLACK OR GALVANIZED STEEL, WITH A MINIMUM WALL THICKNESS OF 3/16-INCH. B THE CONCRETE ENCASEMENT SHALL BE A MINIMUM OF 6 INCHES THICK IN STABLE SOIL AND 12 INCHES THICK IN SANDY OR UNSTABLE SOIL.

C BARRIERS MUST BE INSTALLED IN LINE WITH EACH END OF SERVICE EQUIPMENT TO PREVENT VEHICLE CONTACT. DISTANCE BETWEEN BARRIERS MAY NOT EXCEED 4 FEET. D BARRIERS ARE NOT ALLOWED IN THE REQUIRED WORKING SPACE. a E. BEFORE INSTALLING BARRIERS, CALL DIGALERT AT 811 AND/OR VISIT HTTP://WWW.DIGALERT.ORG/ FOR MARKOUT SERVICE AT LEAST TWO WORKING DAYS PRIOR TO EXCAVATING. BILL OF MATERIALS: NONE NOTES: I. THE CUSTOMER WILL PROVIDE AND INSTALL "NON-REMOVABLE" BARRIERS TO PROVIDE THE CLEARANCES WHERE WORKING SPACE IS EXPOSED TO VEHICLE OR HAZARDOUS CONDITIONS. SERVICE AND METERING EQUIPMENT LOCATED ON PUBLIC OR PRIVATE PROPERTY MUST BE INSTALLED A MINIMUM OF 5 FEET BACK FROM FACE OF CURB OR IS CONSIDERED SUBJECT TO VEHICULAR CONTACT AND REQUIRES BARRIERS. AN SDG&E INSPECTOR WILL DETERMINE IF A BARRIER CAN BE OMITTED WHEN EXISTING STRUCTURES CAN PROTECT PERSONNEL AND EQUIPMENT. METERS WILL NOT BE SET UNTIL THE BARRIERS ARE INSTALLED. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

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NOTES (CONT’D): II. BARRIER POSTS ARE USED TO PROTECT METER AND SERVICE EQUIPMENT AND PERSONNEL FROM VEHICULAR CONTACT AND TO PROHIBIT ENCROACHMENT INTO THE WORKING SPACE. FOR EXAMPLE: LOADING ZONES, DRIVEWAYS, CONGESTED AREAS, ALLEYS, OFF STREET PARKING, ETC. REFERENCE: a FOR WORKING SPACE CLEARANCES, SEE SG504. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG505.2 2 OF 2 BARRIERS FOR ELECTRIC SERVICE AND METERING EQUIPMENT

SCOPE: THIS STANDARD DESCRIBES REQUIREMENTS FOR ELECTRIC METER ROOMS. DEFINITIONS: • ELECTRIC METER ROOM: AN ELECTRIC METER ROOM IS A WEATHERPROOF, ILLUMINATED ROOM PROVIDED BY THE CUSTOMER AT THEIR OPTION AND APPROVED BY SDG&E (UTILITY) FOR THE LOCATION OF THE ELECTRIC SERVICE AND/OR METERING EQUIPMENT. CHAIN LINK FENCE IS NOT ACCEPTABLE AS A SEPARATING WALL. ALL REQUIREMENTS OF THIS STANDARD SHALL APPLY. • READILY ACCESSIBLE: CAPABLE OF BEING REACHED QUICKLY AND CONVENIENTLY 24 HOURS A DAY FOR CONSTRUCTION, OPERATION, MAINTENANCE, INSPECTION, TESTING OR READING, WITHOUT REQUIRING THOSE SEEKING ACCESS TO CLIMB OVER OR REMOVE OBSTACLES; OR TO OBTAIN SPECIAL PERMISSION OR SECURITY CLEARANCES. A STAIRWAY OF NORMAL RISE (4 TO 7 INCHES) AND RUN (11-INCH MINIMUM) CONFORMING TO BUILDING CODE REQUIREMENTS IS ACCEPTABLE. SHIPBOARD LADDERS ARE UNACCEPTABLE. • STRUCTURAL CEILING: DROP, SUSPENDED AND SIMILAR CEILINGS NOT INTENDED TO ADD STRENGTH TO THE BUILDING STRUCTURE ARE NOT STRUCTURAL CEILINGS. ELECTRIC METER ROOM THIS ROOM IS FOR ELECTRICAL AND METERING EQUIPMENT ONLY

STORAGE OF MATERIALS INSIDE IS PROHIBITED SEE SDG&E TERMS & CONDITION OF SERVICE - STANDARD SG506 REFERENCE: • STATE FIRE CODE: §8509.1 • CAL OSHA CODE: §2340.16. WORK SPACE ABOUT ELECTRIC EQUIPMENT FOR ROUTINE WORK, CONTACT THE PROPERTY MANAGER FOR ACCESS. IN CASE OF EMERGENCY, CONTACT SDG&E AT 1-800-411-7343. FIGURE 1 EXAMPLE OF IDENTIFICATION PLAQUE N 10” MIN. C 3’-0” 1’-9” L MIN. MIN. 3’-0” 444 MIN. 3’-0” MIN. 3’-0” 1’-9” MIN. MIN. 3’-0” MIN. 3’-0” MIN. FIGURE 2 FIGURE 3 PLAN VIEW III IV PLAN VIEW III IV © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG506.1 1 OF 5 ELECTRIC METER ROOM

CEILING OR OBSTRUCTION 3’-0” MIN. 10” MIN. 8” I MIN. 3’-0” MIN. 6’-6” 6’-3” MIN. MAX. 6’-3” 4’-0” TO MAX MIN. 3’-0”. MIN. 3’-0” FINAL GRADE FINAL GRADE II MIN. FIGURE 4 FIGURE 5 SIDE VIEW IV FRONT VIEW IV INSTALLATION: A. ACCESS: ACCESS MUST BE THROUGH A DOOR ON THE BUILDING EXTERIOR TO PROVIDE IMMEDIATE 24 HOUR-A-DAY ACCESS. THE DOOR SHALL OPEN OUT OF THE ELECTRIC METER ROOM IN THE DIRECTION OF EGRESS. IF THE DOOR IS TO BE LOCKED, THE LOCK MUST BE KEYED TO SDG&E RESTRICTED SCHLAGE PRIMUS VHLK KEYWAY. A LOCKBOX FOR CUSTOMER KEYS IS NOT ACCEPTABLE. IF A SECOND DOOR OR OPENING IN THE ELECTRIC METER ROOM PERMITS ACCESS TO THE BUILDING INTERIOR, THE BUILDING OWNER, AND OTHER PARTIES AS DETERMINED BY THE UTILITY, WILL BE REQUIRED TO SIGN A METER ACCESS EASEMENT WHICH WILL RELEASE THE UTILITY FROM ANY LOSS OR INJURY ARISING FROM THE ACCESS. THIS DOOR SHALL SWING OUT OF THE METER ROOM IN THE DIRECTION OF EGRESS. B COMMUNICATION EQUIPMENT: TELEPHONE, CATV, DATA PROCESSING EQUIPMENT AND OTHER TYPES OF COMMUNICATION EQUIPMENT ARE NOT PERMITTED IN AN ELECTRIC METER ROOM.

A SINGLE CONDUIT CONTAINING COMMUNICATION WIRING OR CABLES MAY BE INSTALLED IN A STRAIGHT, CONTINUOUS SECTION, RUNNING VERTICALLY THROUGH AN ELECTRIC METER ROOM PROVIDED THE CONDUIT IS NOT LOCATED IN THE DEDICATED ELECTRICAL SPACE AND IT DOES NOT ENCROACH INTO THE WORKING SPACE. CONDUIT SHOULD NOT BE RUN HORIZONTALLY THROUGH AN ELECTRIC METER ROOM BECAUSE IT MAY ENCUMBER SPACE NEEDED FOR FUTURE EXPANSION OF THE CUSTOMER'S ELECTRICAL SYSTEM. ACCESS TO COMMUNICATION EQUIPMENT ROOMS OR SPACES THROUGH AN ELECTRIC METER ROOM IS NOT PERMITTED. 1. EXCEPTIONS: COMMUNICATION EQUIPMENT IS ALLOWED IN A METER ROOM SERVING A SINGLE-FAMILY RESIDENCE. COMMUNICATION CONDUIT, WIRING AND OTHER RELATED DEVICES FOR AUTOMATED METER READING ARE ALLOWED IN ELECTRIC METER ROOMS. C DEDICATED ELECTRICAL SPACE: THE SPACE EQUAL TO THE WIDTH AND DEPTH OF THE EQUIPMENT AND EXTENDING FROM THE FLOOR TO A HEIGHT OF 6 FEET ABOVE THE EQUIPMENT OR TO THE STRUCTURAL CEILING, WHICHEVER IS LOWER, SHALL BE DEDICATED TO THE ELECTRICAL INSTALLATION.

NO PIPING DUCTS, LEAK PROTECTION APPARATUS, OR OTHER EQUIPMENT FOREIGN TO THE ELECTRICAL INSTALLATION SHALL BE LOCATED IN THIS ZONE. 1. EXCEPTION: SUSPENDED CEILINGS WITH REMOVABLE PANELS SHALL BE PERMITTED WITHIN THE 6-FOOT ZONE. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG506.2 2 OF 5 ELECTRIC METER ROOM

INSTALLATION (CONT’D): D. DOORS: THE ENTRANCE TO THE ELECTRIC METER ROOM SHALL BE THROUGH A VERTICAL DOORWAY NOT LESS THAN 3 FEET WIDE OR THE WIDTH OF THE PULL SECTION, WHICHEVER IS GREATER, AND 6'-6” HIGH. THE DOOR SHALL OPEN OUT IN THE DIRECTION OF EGRESS, AND SHALL UTILIZE LEVER-OPERATED HARDWARE. LEVER-OPERATED HARDWARE IS A TYPE THAT PERMITS THE DOOR TO BE OPENED FROM INSIDE THE ROOM WITHOUT THE USE OF HANDS. FOR ELECTRIC METER ROOMS CONTAINING SERVICES RATED 800A OR MORE, THE DOOR SHALL BE EQUIPPED WITH PANIC BARS, PRESSURE PLATES, OR OTHER DEVICES THAT ARE NORMALLY LATCHED BUT OPEN UNDER SIMPLE PRESSURE. WHEN THE PULL SECTION IS NOT DIRECTLY IN FRONT OF THE METER ROOM DOOR, A DOUBLE-DOOR ASSEMBLY IS REQUIRED. IF TWO DOORS ARE REQUIRED BY CODE FOR EMERGENCY EGRESS, BOTH DOORS MUST BE EQUIPPED WITH PANIC HARDWARE. THE SDG&E PROJECT PLANNER DETERMINES WHICH DOOR WILL BE USED FOR SERVICE CABLE PULLING OPERATIONS AND THAT DOOR SHALL BE A DOUBLE DOOR ASSEMBLY. ON DOUBLE-DOOR ASSEMBLIES, BOTH DOORS MUST BE EQUIPPED WITH PANIC HARDWARE.

THE MAXIMUM ALLOWABLE DOORSILL HEIGHT IS 2 INCHES. SECURITY ALARM SYSTEMS MAY BE CONNECTED TO A METER ROOM ACCESS DOOR PROVIDED THE ALARM IS DEACTIVATED MONDAY THROUGH SATURDAY BETWEEN THE HOURS OF 7:00 A.M. AND 9:00 P.M., EXCLUDING HOLIDAYS. THIS WILL ENABLE UTILITY PERSONNEL TO ACCESS UTILITY-OWNED EQUIPMENT DURING OUR NORMAL BUSINESS HOURS WITHOUT ACTIVATING THE ALARM. SHOULD UTILITY EMPLOYEES, OR THEIR AGENTS, ACTIVATE THE ALARM WHILE PERFORMING THEIR DUTIES; THE UTILITY WILL NOT BE RESPONSIBLE FOR THE COST OF LAW ENFORCEMENT OR SECURITY COMPANY RESPONSE CALLS. E FOREIGN SYSTEMS: THE FOLLOWING EQUIPMENT IS NOT PERMITTED WITHIN THE ELECTRICAL METER ROOM. SUCH EQUIPMENT INCLUDES, BUT IS NOT LIMITED TO THE FOLLOWING: 1. GAS EQUIPMENT, INCLUDING CUSTOMER GAS PIPING 2. WATER HEATERS, BOILERS, AND OTHER MECHANICAL EQUIPMENT 3. COMMUNICATIONS EQUIPMENT B 4. STORAGE OF ANY MATERIALS, LIQUIDS, PAINTS, ETC. 5. FIRE AND SECURITY ALARM SYSTEMS 6. WET FILLED BATTERIES AND BATTERY CHARGING EQUIPMENT. NOTE: BATTERIES THAT ARE PART OF A UPS SYSTEM THAT ARE

A SEALED TYPE, NON-GASSING AND NON-VENTING, ARE ALLOWED IN AN ELECTRIC METER ROOM PROVIDED THEY DO NOT ENCROACH IN THE WORKING SPACE OR THE MINIMUM 24-INCH ACCESS AND EXIT ROUTE. 7. IRRIGATION AND SPRINKLER CONTROLLERS 8. DIESEL AND COMBUSTIBLE FUEL TANKS 9. REFRIGERANT PIPELINES EXCEPTION: LIGHTING CONTROLLERS ARE ALLOWED IN AN ELECTRIC METER ROOM WHEN THE BRANCH CIRCUIT OVER CURRENT DEVICE FOR THE LIGHTING IS LOCATED IN THE METER ROOM. F. SPRINKLER PROTECTION: SPRINKLER PROTECTION SHALL BE PERMITTED FOR THE DEDICATED SPACE WHERE THE PIPING IS INSTALLED IN COMPLIANCE WITH THE "DEDICATED ELECTRICAL SPACE" AND "FOREIGN SYSTEMS" REQUIREMENTS. ONLY SPRINKLER SUPPLY PIPING AND HEADS REQUIRED PER STATE AND LOCAL FIRE AND BUILDING CODES TO PROTECT THE ROOM ITSELF ARE ALLOWED. A "MAIN FIRE SPRINKLER" LINE IS NOT ALLOWED TO PASS THROUGH AN ELECTRIC METER ROOM UNLESS A SPRINKLER HEAD SERVING THE ROOM IS CONNECTED DIRECTLY TO THE MAIN LINE. PLACEMENT OF SPRINKLER HEADS AND SHIELDING REQUIREMENTS ARE THE RESPONSIBILITY OF THE FIRE MARSHALL OR BUILDING INSPECTOR, NOT THE UTILITY. C E G.

HEADROOM: THE MINIMUM HEADROOM IN AN ELECTRIC METER ROOM SHALL BE 6'-6" HIGH. THE ACTUAL HEIGHT OF THE ROOM WILL BE DETERMINED BY THE CUSTOMER IN ORDER TO OBTAIN THE 8-INCH CLEARANCE REQUIRED FROM CENTERLINE OF THE HIGHEST METER SOCKET. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG506.3 3 OF 5 ELECTRIC METER ROOM

INSTALLATION (CONT’D): H. IDENTIFICATION/MARKING REQUIREMENTS: EACH METER SOCKET/BASE AND ITS RELATED METER SERVICE DISCONNECT SHALL BE CLEARLY AND PERMANENTLY MARKED BY THE CONTRACTOR OR CUSTOMER TO INDICATE THE OCCUPANCY OR LOAD SERVED, I.E. UNIT OR SUITE NUMBER, FIRE ALARM, HOUSE METER, ETC. EXAMPLES OF PERMANENT MARKING ARE AS FOLLOWS: 1. AN IDENTIFICATION PLATE SECURELY FASTENED BY A MEANS ACCEPTABLE TO THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) OR, 2. COMMERCIALLY AVAILABLE DECALS. IDENTIFICATION MEANS A STREET, APARTMENT, OR SUITE NUMBER. FELT PEN, PIGMENTED INK OR FINGERNAIL POLISH IS NOT ACCEPTABLE. AT THE OPTION OF THE UTILITY, MARKING MAY BE OMITTED OR IDENTIFIED DIFFERENTLY FOR A SINGLE-FAMILY RESIDENCE. EXCEPTION: IN A MULTI-METERING SECTION WHERE THE METER SERVICE DISCONNECTS ARE LOCATED IMMEDIATELY ADJACENT TO THE METER SOCKETS (TO THE SIDE, ABOVE OR BELOW) IT IS ACCEPTABLE TO MARK ONLY THE SERVICE DISCONNECTS. J. ILLUMINATION: THE LIGHT MUST BE CONTROLLED BY AN ON-OFF WALL SWITCH. TIMERS OR MOTION DETECTORS ARE NOT ALLOWED TO CONTROL THE LIGHT.

FOR THE SAFETY OF ELECTRICAL WORKERS, THE UTILITY RECOMMENDS 30 CANDLES MEASURED AT THE FLOOR AS THE MINIMUM LIGHTING LEVEL IN AN ELECTRIC METER ROOM. K. METER HEIGHTS: THE MINIMUM HEIGHT OF THE METER SHALL BE 3 FEET AND THE MAXIMUM HEIGHT SHALL BE 6’-3” AS MEASURED FROM THE STANDING SURFACE TO THE CENTERLINE OF THE METER SOCKET. L. ROOF ACCESS LADDER: LADDERS USED FOR ROOF ACCESS ARE ALLOWED IN A METER ROOM PROVIDED THEY ARE LOCATED OUTSIDE THE REQUIRED WORKING SPACE AREA. THE UTILITY DOES NOT RECOMMEND ROOF ACCESS THROUGH AN OPENING IN AN ELECTRIC ROOM DUE TO ROOF HATCHES BEING INADVERTENTLY LEFT OPEN ALLOWING WATER ENTRY DURING RAIN STORMS. M. PULL SECTIONS: THE POSITION OF A PULL SECTION IN A METER ROOM IS SUBJECT TO APPROVAL BY THE UTILITY. b 1. PULL SECTIONS SHOULD BE POSITIONED: OPPOSITE THE ACCESS DOOR TO ALLOW USE OF THE DOORWAY AS ADDITIONAL WORKING SPACE FOR CABLE PULLING EQUIPMENT; OR ON A WALL PERPENDICULAR TO THE ACCESS DOOR. NOTE: DO NOT LOCATE ON THE SAME WALL AS THE ACCESS DOOR. 2.

PULL SECTIONS THAT REQUIRE 2-INCH, 3-INCH OR 4-INCH CONDUITS MUST ALLOW A MINIMUM OF 3 FEET CLEAR AND LEVEL WORKING SPACE IN FRONT OF THE SECTION. a 3. PULL SECTIONS REQUIRING 5-INCH CONDUITS MUST ALLOW A MINIMUM OF 6 FEET CLEAR AND LEVEL WORKING SPACE IN FRONT OF THE SECTION. 4. ADDITIONAL CLEARANCES MAY BE REQUIRED BY THE LOCAL AUTHORITY HAVING JURISDICTION (AHJ) FOR 480V SERVICES. N ROOM AND SUITE IDENTIFICATION: THE METER ROOM MUST BE PERMANENTLY IDENTIFIED ON THE EXTERIOR OF THE DOOR. DECALS ARE AVAILABLE FROM THE UTILITY BUT MUST BE INSTALLED BY CUSTOMER. WHEN A BUILDING HAS MORE THAN ONE METER ROOM, A PLAQUE IDENTIFYING THE ROOM AND THE SUITES SERVED FROM THE SERVICE IN THE ROOM MUST BE SECURED TO THE EXTERIOR OF THE DOOR. c O. VEHICLE ACCESS: PERMANENT VEHICLE ACCESS TO THE METER ROOM IS REQUIRED FOR THE INSTALLATION AND MAINTENANCE OF THE SERVICE LATERAL CONDUCTORS AND METERING EQUIPMENT. UNDER SOME CONDITIONS, AS DETERMINED BY THE UTILITY, THE VEHICLE ACCESS REQUIREMENT MAY BE WAIVED. d © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG506.4 4 OF 5 ELECTRIC METER ROOM

INSTALLATION (CONT’D): P. VENTILATION: THE UTILITY DOES NOT HAVE A REQUIREMENT FOR VENTILATION OF ELECTRIC METER ROOMS. THE AHJ IS RESPONSIBLE FOR ENFORCEMENT OF VENTILATION IN ELECTRICAL METER ROOMS, WHEN REQUIRED, FOR COMPLIANCE WITH THE CALIFORNIA ELECTRIC CODE, BUILDING CODE OR MECHANICAL CODE. BILL OF MATERIALS: NONE NOTES: I 8-INCH MINIMUM CLEARANCE EXTENDS FOR ENTIRE WIDTH AND DEPTH OF THE 3-FOOT WORKING SPACE. II THE 3-FOOT MINIMUM METER HEIGHT SHOWN IS FOR METER ROOMS, CABINETS, OR EXTERIOR MULTI-METER INSTALLATIONS ONLY. III THE METER FROM ONE PANEL CANNOT BE IN THE WORKING SPACE OF ANOTHER METER IN A DIFFERENT PANEL. IV METER CLEARANCES: ALL METER INSTALLATIONS MUST PROVIDE MINIMUM CLEARANCES AS SHOWN. REFERENCE: a FOR MEDIUM VOLTAGE PULL SECTION CLEARANCES, SEE SG608. b FOR REQUIRED CONDUIT SIZE, SEE SG309. c FOR PLAQUE REQUIREMENTS, SEE SG017. d SEE SG016: PULLING DEVICES FOR INSTALLATION OF SERVICE LATERAL CONDUCTORS IN PARKING STRUCTURES. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG506.5 5 OF 5 ELECTRIC METER ROOM

SCOPE: THIS STANDARD DESCRIBES REQUIREMENTS FOR SINGLE OR MULTIPLE METER INSTALLATIONS IN COMMERCIAL OR RESIDENTIAL APPLICATIONS. 3’-0” MIN. I 10” MIN. 2’-2” 7 MIN. 8” MIN. 2 a 6 II III c 5 6’-6” MIN. WORKING 4’-0” MIN. SPACE 6’-3” MAX. HEIGHT 1 3 3’-0” MIN. d b 4 FIGURE 1 SEMI-FLUSH EXTERIOR METER INSTALLATION SEE TABLE 1 TABLE 1 METER DESCRIPTION LIST ITEM DESCRIPTION 1 CLEAR AND LEVEL WORKING SPACE 2 ANY OBSTRUCTION ABOVE METER 3 PROPERTY LINE OR OBSTRUCTION 4 3 FEET MINIMUM OR LENGTH OF EQUIPMENT, WHICHEVER IS GREATER 5 SEMI-FLUSH METER INSTALLATION 6 METER SERVICE DISCONNECT 7 MIN. DISTANCE TO NEAREST SIDEWALL OR OTHER OBSTRUCTION © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG507.1

1 OF 3 SINGLE OR MULTIPLE METER INSTALLATIONS COMMERCIAL OR RESIDENTIAL APPLICATIONS

6’-3” MAX. 3’-0” MIN. STANDING SURFACE FIGURE 2 MULTIPLE METER INSTALLATION FOR EXTERIOR LOCATIONS COMMERCIAL OR RESIDENTIAL 2’-6” MIN. 10” MIN. 1’-8” C L MIN. 1’-8” MAX. DEPTH 2 8” MIN. 3’-0” MIN. 6’-6” MIN. WORKING 6’-6” MIN. SPACE 3’-0” MIN. HEIGHT 6’-3” MAX. 1 3’-0” MIN. 3 3’-0” MIN. 1 FIGURE 3 RECESS SINGLE METER “RESIDENTIAL APPLICATION ONLY” b c SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG507.2 2 OF 3 SINGLE OR MULTIPLE METER INSTALLATIONS COMMERCIAL OR RESIDENTIAL APPLICATIONS

INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I THE 10-INCH AND 2’-2” DIMENSIONS MAY VARY DEPENDING ON SITE CONDITIONS AND EQUIPMENT CONFIGURATION, BUT IN NO CASE SHALL THE LEFT OR RIGHT SIDE CLEARANCE FROM CENTERLINE OF THE METER SOCKET TO AN OBSTRUCTION BE LESS THAN 10 INCHES, AND THE OVERALL WIDTH OF WORKING SPACE MUST BE 36 INCHES MINIMUM. II RESIDENTIAL EQUIPMENT SHOWN, HOWEVER, THIS STANDARD IS ALSO APPLICABLE TO COMMERCIAL EQUIPMENT (NOT SHOWN). III THIS STANDARD ALSO APPLIES TO WALL-MOUNTED AND FREE-STANDING SWITCHBOARDS (NOT SHOWN). REFERENCE: a FOR HARDSCAPE WORKING SPACE REQUIREMENTS, SEE SG504. b FOR BARRIER REQUIREMENTS, SEE SG505. c FOR ADDITIONAL METER CABINET RECESS REQUIREMENTS, SEE SG508. d FOR 480V SERVICE AND MEDIUM-VOLTAGE SWITCHGEAR, SEE SG504. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG507.3 3 OF 3 SINGLE OR MULTIPLE METER INSTALLATIONS COMMERCIAL OR RESIDENTIAL APPLICATIONS

SCOPE: THIS STANDARD DESCRIBES REQUIREMENTS FOR METER CABINET RECESS FOR SINGLE METER RESIDENTIAL APPLICATIONS ONLY. C 10” L MIN. 8” MIN. 7” MIN. 11” MAX. 1’-8” MIN. 1” MIN. 4 7” MIN. C 11”MAX. L 4 5 5 10” 1’-8” MIN. 6’-6” MIN. MIN. 7 HEIGHT 3’-0” MIN. I 3’-0” 6’-3” MAX. 10 MIN. 6 8 8 90° MIN. OPENING FIGURE 1 FIGURE 1 FIGURE 1 SIDE VIEW B FRONT VIEW C PLAN VIEW B C D1 SEE TABLE 1 SEE TABLE 1 SEE TABLE 1 C L 1’-8” 6 10” MIN. MIN. 6’-6” MIN. FULL LENGTH 8” MIN. 9 C L 6’-6” MIN. 11 HEIGHT 3’-0” MIN. 6’-3” MAX. E 3’-0” MIN. 1 3’-0” MIN. FIGURE 2 SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG508.1 1 OF 3 METER CABINET RECESS FOR SINGLE METER RESIDENTIAL APPLICATION ONLY

TABLE 1 METER CABINET DESCRIPTION LIST ITEM DESCRIPTION 1 PROPERTY LINE OR OBSTRUCTION 2 SERVICE DISCONNECT 3 EXTERIOR BUILDING WALL 4 METER 5 METER SOCKET 6 HINGED DOOR (OPEN) 7 FULL LENGTH DOOR 8 FINAL GRADE 9 ANY OBSTRUCTION ABOVE METER 10 CLEAR LEVEL STANDING AND WORKING SURFACE 11 WORKING SPACE INSTALLATION: A. GENERAL INFORMATION: 1. A METER CABINET RECESS IS ALLOWED FOR A SINGLE METER RESIDENTIAL APPLICATION ONLY AND IS LIMITED TO SINGLE- PHASE SERVICE. 2. THE METER CABINET RECESS MUST HAVE SUFFICIENT DEPTH TO PROVIDE CLEARANCE FOR THE METER IN ADDITION TO THE DEPTH REQUIRED FOR THE METER PANEL. ALL CLEARANCES MUST BE MET TO ENSURE THE METER CAN BE INSTALLED SAFELY. B DEPTH OF RECESS: A 7-INCH MINIMUM, AND 11-INCH MAXIMUM CLEARANCE IS REQUIRED FROM FACE OF METER PANEL TO INSIDE OF CABINET DOOR. C WIDTH OF RECESS: A 10-INCH MINIMUM CLEARANCE MEASURED FROM THE VERTICAL CENTERLINE OF THE METER SOCKET TO THE HINGED SIDE OF THE DOOR IS REQUIRED. A 20-INCH MINIMUM CLEARANCE MEASURED FROM THE VERTICAL CENTERLINE OF THE METER SOCKET

TO THE SIDE OPPOSITE THE HINGED SIDE OF THE DOOR IS REQUIRED. D. DOOR REQUIREMENTS: 1 THE DOOR MUST BE A MINIMUM OF 6'-6" HIGH, FULL LENGTH, SIDE-HINGED, AND DESIGNED TO SECURE IN THE OPEN POSITION AT 90 DEGREES OR MORE. SHOULD THE DOOR, WHEN OPENED TO 90 DEGREES OBSTRUCT THE EXIT ROUTE, IT MUST BE HINGED TO ALLOW THE DOOR TO OPEN BETWEEN 90 AND 180 DEGREES TO OBTAIN THE MINIMUM 24-INCH EXIT ROUTE. IT IS NOT PERMISSIBLE TO CUT AN OPENING IN THE DOOR THROUGH WHICH THE METER WILL PROTRUDE. THE METER COULD BE HIT CAUSING A PERSON TO BE INJURED OR DAMAGE TO THE METER. AN OPENING MAY BE CUT AND COVERED WITH A HINGED POLYCARBONATE VIEWING WINDOW FOR METER READING PURPOSES. 2. FIGURES IN THIS STANDARD ARE FOR 125–225A SOCKET-BASED METER INSTALLATIONS. THIS STANDARD MAY ALSO BE APPLIED TO 400A (CLASS 320) RESIDENTIAL METER PANELS (NOT PICTURED), AND 600A CURRENT TRANSFORMER (CT) RATED COMMERCIAL METER PANELS USED FOR RESIDENTIAL APPLICATION (NOT PICTURED). E 3 FEET MINIMUM CLEAR AND LEVEL WORKING SPACE REQUIRED. FINAL GRADE OF WORKING SPACE AND THE INSIDE OF THE CABINET MUST BE THE SAME.

NO STEPS IN OR OUT OF THE CABINET ARE PERMITTED. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG508.2 2 OF 3 METER CABINET RECESS FOR SINGLE METER RESIDENTIAL APPLICATION ONLY

BILL OF MATERIALS: NONE NOTES: I IF THE INTERIOR WIDTH OF THE CABINET IS 36 INCHES, OR GREATER, THE WORKING SPACE CAN BE MEASURED FROM THE FACE OF THE METER PANEL PROVIDED THE GRADE DOES NOT EXCEED A 1/4-INCH DROP PER FOOT SLOPING AWAY FROM THE PANEL. REFERENCE: a. FOR BARRIER REQUIREMENTS, SEE SG505. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG508.3 3 OF 3 METER CABINET RECESS FOR SINGLE METER RESIDENTIAL APPLICATION ONLY

SCOPE: THIS STANDARD DESCRIBES REQUIREMENTS FOR ELECTRIC METER CABINETS IN COMMERCIAL OR RESIDENTIAL MULTI-METER INSTALLATIONS. 1” MIN. DETAIL 1 1” MIN. 11” MIN. 8” Y 8” MIN. MAIN MIN. 2’-11” MAX. PROPERTY LINE, WALL, OR PULL CAN 1” MIN. OBSTRUCTION 1” MIN. FROM 6’-6” EDGE OF MIN. DOOR JAMB 6’-3” 3’-0” 6’-3” 10” MIN. MAX. MIN. MAX. 3’-0” 3’-0” MIN. MIN. 6” 6” I I MIN. MIN. FINAL GRADE FINAL GRADE FIGURE 1 FIGURE 1 FRONT VIEW SIDE VIEW SEE TABLE 1 DETAIL 1 TELCO/CATV MAIN/PULL CAN 1” MIN. FACE OF PANEL 11” MIN. 1” MIN. 2’-11” MAX. 10” MIN. 3’-0” L MIN. PROPERTY LINE, II WALL, OR OBSTRUCTION FIGURE 2 D TOP VIEW © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG509.1

1 OF 4 ELECTRIC METER CABINET – COMMERCIAL OR RESIDENTIAL MULTI-METER INSTALLATIONS

ELECTRIC METER CABINET THIS SPACE IS FOR ELECTRICAL AND METERING EQUIPMENT ONLY STORAGE OF MATERIALS INSIDE IS PROHIBITED SEE SDG&E TERMS & CONDITION OF SERVICE - STANDARD SG509 REFERENCE: • STATE FIRE CODE: §8509.1 • CAL OSHA CODE: §2340.16. WORK SPACE ABOUT ELECTRIC EQUIPMENT FOR ROUTINE WORK, CONTACT THE PROPERTY MANAGER FOR ACCESS. IN CASE OF EMERGENCY, CONTACT SDG&E AT 1-800-411-7343. FIGURE 3 EXAMPLE OF IDENTIFICATION PLAQUE H TABLE 1 ELECTRIC METER CABINET DIMENSIONS DEPTH OF OBSTRUCTION DISTANCE FROM CENTERLINE OF EXTENDING BEYOND FACE OF PANEL SOCKET TO SIDE OBSTRUCTION Z (IN) Y MIN. (IN) 0 TO LESS THAN 2 4 1/4 2 TO LESS THAN 6 6 1/4 6 OR OVER 10 REQUIRED WORKING SPACE FOR PANEL. III 6’-6” MIN. HEIGHT Z Y 1’-8” MIN. ANY CL OBSTRUCTION 3’-0” MIN. DEPTH DETAIL 1 DETAIL 1 TOP VIEW WORKING SPACE EXCEPTION SEE TABLE 1 SIDE VIEW SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F

B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG509.2 2 OF 4 ELECTRIC METER CABINET – COMMERCIAL OR RESIDENTIAL MULTI-METER INSTALLATIONS

INSTALLATION: A. GENERAL REQUIREMENTS: A METER CABINET IS ALLOWED FOR A COMMERCIAL OR RESIDENTIAL MULTI-METERED INSTALLATION PROVIDED IT MEETS ALL OF THE FOLLOWING REQUIREMENTS. 1. NO OBSTRUCTIONS SUCH AS DOOR JAMS, VERTICAL POSTS, ETC. ARE PERMITTED WITHIN THE CABINET OPENING. COMMUNICATION EQUIPMENT IS ALLOWED IN THE SAME CABINET WITH ELECTRICAL BUT MAY NOT ENCROACH IN THE WORKING SPACE. NO OTHER EQUIPMENT FOREIGN TO THE ELECTRICAL OR COMMUNICATION SYSTEMS IS ALLOWED WITHIN THE CABINET. B. DEPTH OF CABINET: DEPTH OF CABINET SHALL BE 11 INCHES MINIMUM, 35 INCHES MAXIMUM, MEASURED FROM THE FACE OF METER PANEL TO INSIDE OF CABINET DOOR. THE CHANGE IN ELEVATION WITHIN THE REQUIRED WORKING SPACE SHALL NOT EXCEED 1/4-INCH PER FOOT SLOPING AWAY FROM THE METER PANEL, AND THE ILLUMINATION REQUIREMENTS SHALL BE MET. CABINETS WITH A DEPTH GREATER THAN 35 INCHES WILL BE CONSIDERED A METER ROOM AND ALL REQUIREMENTS FOR ELECTRIC METER ROOMS SHALL BE MET. E C. WIDTH OF CABINET: A 36-INCH WIDTH IS REQUIRED WITH 10 INCHES MINIMUM SIDE CLEARANCE MEASURED FROM THE VERTICAL CENTERLINE OF THE

METER SOCKETS. IF ELECTRICAL EQUIPMENT IS EQUIPPED WITH HINGED DOORS, THE CABINET OPENING MUST ALLOW FOR EQUIPMENT DOORS TO BE OPENED A MINIMUM OF 90 DEGREES. 1. WHEN AN ELECTRIC METER CABINET IS CONSTRUCTED DEEPER THAN 18 INCHES, MEASURED FROM THE FACE OF THE METER PANEL TO THE INSIDE OF THE CABINET DOOR(S), BUT LESS THAN 36 INCHES, THE ILLUMINATION REQUIREMENTS OF AN ELECTRIC METER ROOM SHALL BE MET. IF THE DISTANCE WHEN MEASURED FROM THE FACE OF THE METER PANEL TO THE INSIDE OF THE DOOR(S) IS 36 INCHES OR MORE, THIS IS NO LONGER A METER CABINET, IT IS AN ELECTRIC METER ROOM. a b D DOOR REQUIREMENTS: METER CABINET DOORS MUST BE SIDE-HINGED. THE DOOR MUST BE DESIGNED TO SECURE IN THE OPEN POSITION AT 90 DEGREES, OR MORE. SHOULD THE DOORS, WHEN OPENED TO 90 DEGREES, OBSTRUCT THE 24-INCH MINIMUM EXIT ROUTE, THEY MUST BE HINGED TO 180 DEGREES. DOORS MUST BE A MINIMUM OF 6’-6” IN HEIGHT. ROLL UP DOORS AND SLIDING DOORS ARE NOT ACCEPTABLE DUE TO INJURIES TO SDG&E (UTILITY) PERSONNEL RESULTING FROM IMPROPER INSTALLATION AND LACK OF PROPER MAINTENANCE.

IF EXISTING ROLL UP OR SLIDING DOORS REQUIRE REPLACEMENT, NEW SIDE HINGED DOORS ARE REQUIRED. THE MAXIMUM ALLOWABLE DOOR SILL HEIGHT IS 2 INCHES. E ILLUMINATION REQUIREMENTS: ILLUMINATION IS REQUIRED IN METER CABINETS INSTALLED IN MID-RISE AND HIGH-RISE BUILDINGS, AND IN OUTDOOR LOCATIONS WITHOUT DIRECT SUNLIGHT. METER CABINETS CONSTRUCTED WITH A DEPTH OF 18 INCHES, OR GREATER, ARE REQUIRED TO BE ILLUMINATED. METER CABINETS LOCATED OUTSIDE OF A BUILDING IN AN AREA OF DIRECT SUNLIGHT ARE NOT REQUIRED TO HAVE ILLUMINATION. F. LOCKING REQUIREMENTS: THE UTILITY DOES NOT REQUIRE METER CABINETS TO BE LOCKED. IF THE CUSTOMER CHOOSES TO LOCK THE DOORS, A LOCKING DEVICE APPROVED BY THE UTILITY IS REQUIRED. G. MINIMUM CLEAR AND LEVEL STANDING AND WORKING SPACE: THE FOLLOWING REQUIREMENTS APPLY: 1. SHALL NOT BE LESS THAN 6'-6'" HIGH MEASURED VERTICALLY FROM THE FLOOR, PERMANENT PLATFORM, OR FINAL GRADE 2. SHALL NOT BE LESS THAN 3 FEET MEASURED FROM THE FACE OF THE METER CABINET TO THE NEAREST OBSTRUCTION OR PROPERTY LINE 3.

SHALL EXTEND THE FULL WIDTH OF THE CABINET OPENING WHICH SHALL NOT BE LESS THAN 3 FEET © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG509.3 3 OF 4 ELECTRIC METER CABINET – COMMERCIAL OR RESIDENTIAL MULTI-METER INSTALLATIONS

INSTALLATION (CONT’D): H CABINET AND SUITE IDENTIFICATION: THE METER CABINET MUST BE PERMANENTLY IDENTIFIED ON THE EXTERIOR OF THE DOOR AS SHOWN. DECALS ARE AVAILABLE FROM THE UTILITY BUT MUST BE INSTALLED BY CUSTOMER. WHEN A BUILDING HAS MORE THAN ONE METER CABINET, A PLAQUE IDENTIFYING THE CABINET AND THE SUITES SERVED FROM THE SERVICE IN THE CABINET MUST BE SECURED TO THE EXTERIOR OF THE CABINET DOOR. c J. IDENTIFICATION/MARKING REQUIREMENTS: 1. EACH METER SOCKET/BASE AND ITS RELATED METERED SERVICE DISCONNECT SHALL BE CLEARLY AND PERMANENTLY MARKED BY THE CONTRACTOR OR CUSTOMER TO INDICATE THE OCCUPANCY OR LOAD SERVED, I.E. UNIT OR SUITE NUMBER, FIRE ALARM, HOUSE METER, ETC. EXAMPLES OF PERMANENT MARKING ARE: AN IDENTIFICATION PLATE SECURELY FASTENED BY PERMANENT MEANS ACCEPTABLE TO THE AUTHORITY HAVING JURISDICTION (AHJ) COMMERCIALLY AVAILABLE DECALS 2. IDENTIFICATION MEANS A STREET, APARTMENT OR SUITE NUMBER. FELT PEN, PIGMENTED INK, OR FINGERNAIL POLISH ARE NOT ACCEPTABLE. AT THE OPTION OF THE UTILITY, MARKING MAY BE OMITTED OR IDENTIFIED DIFFERENTLY FOR A SINGLE-

FAMILY RESIDENCE. 3. EXCEPTION: IN A MULTI-METERING SECTION WHERE THE SERVICE DISCONNECT IS LOCATED IMMEDIATELY ADJACENT TO THE METER SOCKET (TO THE SIDE, ABOVE OR BELOW), IT IS ACCEPTABLE TO MARK ONLY THE SERVICE DISCONNECT OR THE METER SOCKET. K. VENTILATION: SDG&E DOES NOT HAVE A REQUIREMENT FOR VENTILATION OF ELECTRIC METER CABINETS. THE AUTHORITY HAVING JURISDICTION (AHJ) IS RESPONSIBLE FOR ENFORCEMENT OF VENTILATION IN ELECTRICAL METER CABINETS, WHEN REQUIRED, FOR COMPLIANCE WITH THE CALIFORNIA ELECTRIC CODE, BUILDING CODE OR MECHANICAL CODE. L NO OBSTRUCTIONS SUCH AS DOOR JAMS, VERTICAL POSTS, ETC. ARE PERMITTED WITHIN THE CABINET OPENING. BILL OF MATERIALS: NONE NOTES: I PROVIDE CLEAR AND LEVEL STANDING AND WORKING SURFACE. II HINGED DOORS WHEN OPENED, MAY NOT BLOCK THE 24-INCH MINIMUM EXIT ROUTE. III CUSTOMER EQUIPMENT ASSOCIATED WITH ELECTRICAL EQUIPMENT AND INSTALLED BELOW METER PANELS CAN EXTEND INTO WORKING SPACE UP TO 6 INCHES. REFERENCE: a FOR ELECTRIC METER ROOM STANDARDS, SEE SG506. b FOR ADDITIONAL REQUIREMENTS IN MID-RISE AND HIGH-RISE BUILDINGS, SEE SG510.

c FOR PLAQUE REQUIREMENTS, SEE SG017. © 1998 – 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG509.4 4 OF 4 ELECTRIC METER CABINET – COMMERCIAL OR RESIDENTIAL MULTI-METER INSTALLATIONS

SCOPE: THIS STANDARD PROVIDES THE POLICY AND REQUIREMENTS FOR ELECTRIC METERING IN BUILDINGS OR STRUCTURES THREE STORIES, AND ABOVE, IN HEIGHT. DEFINITIONS: • HIGH-RISE BUILDING: FOR THE PURPOSE OF THIS STANDARD, A HIGH-RISE BUILDING IS A STRUCTURE HAVING FLOORS USED FOR HUMAN OCCUPANCY LOCATED MORE THAN 75 FEET ABOVE THE LOWEST LEVEL OF FIRE DEPARTMENT VEHICLE ACCESS. • MID-RISE BUILDING: FOR THE PURPOSE OF THIS STANDARD, A MID-RISE BUILDING IS A STRUCTURE HAVING A MINIMUM OF THREE FLOORS USED FOR HUMAN OCCUPANCY AND CONSTRUCTED AT A HEIGHT LESS THAN IS REQUIRED TO MEET THE DEFINITION OF A HIGH-RISE BUILDING. H J XIII 5 H VIII 3 1 6 4 2 F H VIII FIGURE 1 MID-RISE AND HIGH-RISE ELECTRIC METERING SCHEMATIC G VII SEE TABLE 1 TABLE 1 METERING SCHEMATIC DESCRIPTION LIST ITEM DESCRIPTION 1 OPTIONAL CUSTOMER-OWNED BUS DUCT WITH SDG&E SERVICE POINT AT TRANSFORMER 2 SERVICE POINT IN TERMINATING ENCLOSURE (UGPS) 3 SDG&E OWNED METERS AND CUSTOMER-OWNED ELECTRICAL EQUIPMENT 4 DISTRIBUTION PANELS TYPICAL IN EACH TENANT SPACE 5 LOADBREAK DISCONNECT SWITCH AT EACH REMOTE LOCATION

6 SDG&E TRANSFORMER © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 F B NO CHANGES – REAFFIRMED - JC IJ TPM 10/15/2015 E A EDITORIAL CHANGES - JC BRB MDJ 08/06/2015 D FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG510.1 1 OF 5 ELECTRICAL METERING IN MID-RISE AND HIGH-RISE BUILDINGS

CAUTION: ENERGIZED EQUIPMENT – DO NOT OPEN THE “SERVICE POINT” IS IN THIS ENCLOSURE AT THE CABLE TERMINATIONS. ALL ELECTRICAL WIRING AND EQUIPMENT BEYOND THE SERVICE POINT, EXCEPT SDG&E SERVICE AND METERING EQUIPMENT, ARE CUSTOMER- OWNED, CONTROLLED, SECURED, SAFEGUARDED AND MAINTAINED BY THE CUSTOMER. ONLY AUTHORIZED SDG&E EMPLOYEES ARE ALLOWED ACCESS INTO UTILITY-SEALED ENCLOSURES OR COMPARTMENTS. ALL UTILITY SEALS ARE TO REMAIN INTACT WITHOUT BEING CUT OR REMOVED. EXAMPLE 1 PLAQUE CAUTION: ENERGIZED EQUIPMENT – DO NOT OPEN THE “SERVICE POINT” IS AT THE SECONDARY OF UTILITY’S TRANSFORMER. ALL CONDUCTORS IN THIS ENCLOSURE ARE CUSTOMER-OWNED. ALL ELECTRICAL WIRING AND EQUIPMENT BEYOND THE SERVICE POINT, EXCEPT SDG&E SERVICE AND METERING EQUIPMENT, ARE CUSTOMER- OWNED, CONTROLLED, SECURED, SAFEGUARDED AND MAINTAINED BY THE CUSTOMER. ONLY AUTHORIZED SDG&E EMPLOYEES ARE ALLOWED ACCESS INTO UTILITY-SEALED ENCLOSURES OR COMPARTMENTS. ALL UTILITY SEALS ARE TO REMAIN INTACT WITHOUT BEING CUT OR REMOVED. EXAMPLE 2 PLAQUE FIGURE 2 F F2 XI 2’-11” MIN. XII FIGURE 3 SAFETY CONE B K

© 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 F B NO CHANGES – REAFFIRMED - JC IJ TPM 10/15/2015 E A EDITORIAL CHANGES - JC BRB MDJ 08/06/2015 D FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG510.2 2 OF 5 ELECTRICAL METERING IN MID-RISE AND HIGH-RISE BUILDINGS

INSTALLATION: REMOTE ELECTRIC METER ROOM AND CABINET SPECIFICATIONS: d A. ALL UTILITY-OWNED METERS SHALL BE LOCATED IN AN ELECTRIC METER ROOM APPROVED BY THE UTILITY. ON OCCUPIED FLOORS ONLY, THEY MAY BE IN A METER CABINET APPROVED BY THE UTILITY. IN ADDITION TO THE REQUIREMENTS SHOWN ON SG506 FOR METER ROOMS, OR SG509 FOR METER CABINETS, EACH REMOTE METER ROOM/CABINET SHALL HAVE EMERGENCY LIGHTING, A TELEPHONE WITH A DEDICATED PHONE LINE FOR USE IN AN EMERGENCY, AND AN INFORMATION PLAQUE PLACED AT EYE LEVEL ON THE INSIDE OF THE DOOR CONTAINING THE FOLLOWING INFORMATION: b c 1. 24-HOUR PROPERTY MANAGEMENT EMERGENCY CONTACT TELEPHONE NUMBER 2. TOTAL NUMBER OF METERS FOR THAT PARTICULAR LOCATION 3. FLOOR NUMBER AND NEAREST ELEVATOR OF ALL OTHER METER ROOM/CABINET LOCATIONS IN THE BUILDING 4. MAP SHOWING THE FOLLOWING: PRESENT LOCATION EXITS (ELEVATORS AND STAIRS) FROM PRESENT LOCATION TO THE OUTSIDE OF THE BUILDING ALL METER ROOMS AND CABINETS IN RELATIONSHIP TO THE ELEVATORS B METER CABINETS NORMALLY REQUIRE TWO SAFETY CONES TO BE PLACED INSIDE THE CABINET FOR USE BY INDIVIDUALS WHEN

WORK IS BEING PERFORMED. C. METER ACCESS EASEMENT: THE BUILDING OWNER SHALL EXECUTE A “METER ACCESS EASEMENT” PROVIDED BY SDG&E, AT THE OWNER’S EXPENSE, AND RETURN TO THE UTILITY DURING THE PLANNING PHASE OF THE PROJECT. D. MID-RISE AND HIGH-RISE BUILDING REQUIREMENTS: 1. ELECTRIC METER ROOMS OR METER CABINETS MAY BE LOCATED ON EVERY FLOOR. METER ROOMS MUST HAVE STRUCTURAL WALLS AND A STRUCTURAL CEILING. SUBSTITUTES SUCH AS FENCES OR PARTITIONS ARE NOT ACCEPTABLE. ELECTRIC METER CABINETS ARE ALLOWED, BUT MAY ONLY BE LOCATED ON OCCUPIED FLOORS WITHIN THE COMMON CORRIDORS USED TO ACCESS DWELLING UNITS AND OTHER SUITES. ELECTRIC METER CABINETS ARE NOT ALLOWED WITHIN PARKING STRUCTURES OR PARKING GARAGES. THE ELECTRIC METER ROOMS/CABINETS SHALL BE LOCATED AS CLOSE AS PRACTICAL TO THE ELEVATOR THAT WILL BE USED BY SDG&E EMPLOYEES TO ACCESS THE FLOORS, BUT IN NO CASE FURTHER THAN 50 FEET WALKING DISTANCE FROM THE ELEVATOR. THE ELEVATOR MUST BE EQUIPPED WITH AN SDG&E RESTRICTED SCHLAGE PRIMUS VHLK KEYWAY AND KEY SWITCH WIRED TO THE CONTROL PANEL TO ALLOW 24-HOUR ACCESS TO THE FLOORS WHERE

UTILITY METERS ARE LOCATED. SDG&E WILL NOT CHECK IN WITH A SECURITY GUARD DURING OUR NORMAL BUSINESS HOURS. 2. THE CUSTOMER HAS THE OPTION OF INSTALLING MULTIPLE METER LOCATIONS ON THE SAME FLOOR AND OMITTING METER LOCATIONS ON EVERY FLOOR PROVIDED: THE TOTAL NUMBER OF METER LOCATIONS DOES NOT EXCEED THE TOTAL NUMBER OF OCCUPIED BUILDING FLOORS. ALL METER LOCATIONS ARE WITHIN 50 FEET WALKING DISTANCE FROM THE ELEVATOR THAT WILL BE USED BY SDG&E EMPLOYEES TO ACCESS THE FLOORS. METER LOCATION ENTRANCES SHALL BE LOCATED DIRECTLY OFF THE COMMON CORRIDOR USED TO ACCESS THE ELEVATOR. IT IS NOT ACCEPTABLE TO ENTER ANOTHER SPACE OR ROOM BEFORE ENTERING THE METER ROOM/CABINET. THE CUSTOMER MAY PROVIDE ACCESS TO MULTIPLE METER ROOMS/CABINETS LOCATED ON THE SAME FLOOR FROM DIFFERENT ELEVATORS. THIS IS MORE COMMON IN HIGH-RISE PODIUM CONSTRUCTION PROJECTS. E. MID-RISE BUILDING EXCEPTION: AN EXCEPTION MAY BE GRANTED TO ALLOW MULTIPLE METER ROOMS IN A SUBTERRANEAN PARKING STRUCTURE IN LIEU OF METER ROOMS/CABINETS LOCATED ON THE OCCUPIED FLOORS PROVIDED ALL SDG&E APPLICABLE STANDARDS ARE MET. THE

CUSTOMER SHOULD CONSULT WITH SDG&E’S PLANNER TO USE THIS EXCEPTION IN THE CONCEPTUAL DESIGN PHASE OF THE PROJECT. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 F B NO CHANGES – REAFFIRMED - JC IJ TPM 10/15/2015 E A EDITORIAL CHANGES - JC BRB MDJ 08/06/2015 D FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG510.3 3 OF 5 ELECTRICAL METERING IN MID-RISE AND HIGH-RISE BUILDINGS

INSTALLATION (CONT’D): F THE MAIN ELECTRIC ROOM SHALL CONTAIN A MASTER DIRECTORY SHOWING ALL METER LOCATIONS WITHIN THE BUILDING. THIS DIRECTORY MAY BE LOCATED ON THE INTERIOR OR EXTERIOR OF THE METER ROOM DOOR, OR MOUNTED ON A WALL WITHIN THE ROOM IN A CONSPICUOUS LOCATION. SEE SG017 FOR PLAQUE SPECIFICATIONS, WITH THE EXCEPTION THAT ALL LETTER SIZES MAY BE REDUCED TO 1/8-INCH. IT IS ACCEPTABLE TO MOUNT A SITE MAP DENOTING THE METER LOCATIONS AND ACCESS ROUTE BETWEEN PLEXIGLAS IN LIEU OF A PLAQUE. f 1. EACH MAIN SERVICE DISCONNECT SHALL MEET THE REQUIREMENTS ON SG511. g 2 FIGURE 2: EXAMPLE 1 IS REQUIRED AT THE SERVICE POINT AND IS TO BE LOCATED ON THE EXTERIOR PANEL COVER OF THE TERMINATING ENCLOSURE WHERE SDG&E CONDUCTORS TERMINATE. IF THE SERVICE POINT IS AT SDG&E’S TRANSFORMER, FIGURE 2: EXAMPLE 2 SHALL BE INSTALLED ON THE EXTERIOR PANEL COVER AT THE MAIN SERVICE DISCONNECT LOCATION. SEE SG017 FOR PLAQUE SPECIFICATIONS, WITH THE EXCEPTION THAT ALL LETTER SIZES MAY BE REDUCED TO 1/8 INCH. f

G FEEDER DISCONNECTS CONTROLLING ELECTRICITY TO REMOTE METER LOCATIONS SHALL HAVE A PERMANENT PLAQUE AFFIXED TO EACH OF THE FEEDER DISCONNECTS STATING: THIS DISCONNECT CONTROLS POWER TO METERS LOCATED IN REMOTE LOCATIONS ON FLOORS ____________. SEE DIAGRAM ON WALL/DOOR INDICATING THE LOCATION AND ACCESS ROUTE TO THE REMOTE METER LOCATIONS. FIGURE 4 G H FEED CONDUCTORS (CABLE OR BUSWAY) SHALL BE INSTALLED PER THE CALIFORNIA ELECTRICAL CODE AND APPROVED BY THE AUTHORITY HAVING JURISDICTION (AHJ). WHEN CABLE IS INSTALLED IN A RACEWAY CONTAINING A CONDULET AND/OR JUNCTION BOX, THEY SHALL BE LOCATED NO HIGHER THAN 9 FEET ABOVE STANDING SURFACE AND SHALL PROVIDE A MEANS FOR INSTALLATION OF UTILITY SEALS. BUS DUCT HOUSING OR CONCEALED RACEWAYS CONTAINING UNMETERED CONDUCTORS ARE NOT REQUIRED TO BE SEALED. J A LOAD-BREAK DISCONNECT SWITCH, CAPABLE OF BEING LOCKED IN THE OPEN/OFF POSITION, IS REQUIRED WITHIN SIGHT OF EACH GROUP OF METERS CONTROLLED BY A FEED ORIGINATING FROM THE MAIN ELECTRIC METER ROOM. K SAFETY CONES CONSTRUCTED OF RUGGED PLASTIC ARE REQUIRED FOR ELECTRIC METER CABINETS.

THE SAFETY CONES ARE TO BE PLACED INSIDE THE CABINET PRIOR TO THE UTILITY ENERGIZING THE MAIN SERVICE TO THE BUILDING, UNLESS THE CABINET HAS NOT BEEN CONSTRUCTED AT THE TIME THE SERVICE IS ENERGIZED. TWO SAFETY CONES ARE REQUIRED FOR EACH METER CABINET UNLESS THE POSITION OF THE CABINET IS SUCH THAT FOOT TRAFFIC IS LIMITED TO ONE DIRECTION, IN WHICH CASE, UPON APPROVAL BY THE UTILITY’S INSPECTOR, ONLY ONE SAFETY CONE IS REQUIRED. BILL OF MATERIALS: NONE NOTES: GENERAL INFORMATION: I. THE PURPOSES OF THE STANDARD ARE TO ESTABLISH REQUIREMENTS FOR AN ELECTRICAL SYSTEM WITH INDIVIDUAL METERING LOCATED ON MULTIPLE FLOORS IN A MANNER THAT WILL PROVIDE FOR SAFE ACCESS, OPERATIONS, AND MAINTENANCE OF THE ELECTRICAL SYSTEM AND HELP ENSURE RELIABLE SERVICE TO THE OCCUPANTS FOR THE LIFE OF THE BUILDING. II. THIS STANDARD APPLIES TO BUILDINGS OR STRUCTURES USED FOR COMMERCIAL AND RESIDENTIAL USE, INCLUDING MIXED-USE BUILDINGS, SUCH AS, BUT NOT LIMITED TO, A HOTEL WITH RESIDENTIAL DWELLING UNITS LOCATED ON THE UPPER FLOORS OF

THE BUILDING, OR A BUILDING WITH COMMERCIAL SPACE ON THE LOWER FLOORS AND RESIDENTIAL DWELLING UNITS LOCATED ON THE UPPER FLOORS. III. EACH DWELLING UNIT IN A MID-RISE OR HIGH-RISE BUILDING MUST BE INDIVIDUALLY METERED BY SDG&E (UTILITY). a © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 F B NO CHANGES – REAFFIRMED - JC IJ TPM 10/15/2015 E A EDITORIAL CHANGES - JC BRB MDJ 08/06/2015 D FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG510.4 4 OF 5 ELECTRICAL METERING IN MID-RISE AND HIGH-RISE BUILDINGS

NOTES (CONT’D): GENERAL INFORMATION (CONT’D): IV. NON-RESIDENTIAL ENTERPRISES MUST BE INDIVIDUALLY METERED BY THE UTILITY IN MID-RISE BUILDINGS. THE CUSTOMER HAS THE OPTION OF INSTALLING A MASTER METER TO SERVE ALL NON-RESIDENTIAL ENTERPRISES IN HIGH-RISE BUILDINGS WHERE THE NON-RESIDENTIAL ENTERPRISES ARE LOCATED ON OR ABOVE THE SIXTH FLOOR USED FOR HUMAN OCCUPANCY, OR REQUESTING INDIVIDUAL METERS BY THE UTILITY FOR EACH SEPARATE ENTERPRISE. THE UTILITY’S FILED ELECTRIC RULE 19 PROHIBITS SUBMETERING OF NON-RESIDENTIAL SERVICE. A CUSTOMER SHALL NOT CHARGE OTHERS FOR ELECTRICITY RECEIVED THROUGH A SINGLE METER EXCEPT WHERE THE COST OF ELECTRICITY IS ABSORBED IN THE RENT FOR EACH INDIVIDUAL TENANT. THE RENT SHALL NOT VARY WITH ELECTRIC CONSUMPTION. A SEPARATE IDENTIFIABLE CHARGE TO THE TENANTS FOR ELECTRICITY IS NOT ALLOWED. V. SERVICE STANDARDS REVIEW: THE SDG&E PLANNER SHALL HAVE SERVICE STANDARDS, IN ELECTRIC DISTRIBUTION ENGINEERING, REVIEW THE BUILDING PROJECT PLANS FOR MID-RISE AND HIGH-RISE BUILDINGS TO ENSURE THE GROUNDING ELECTRODE CONDUCTOR IS

APPROPRIATELY PLACED AND OTHER ENGINEERING RELATED ISSUES ARE RESOLVED DURING THE DESIGN PHASE OF THE PROJECT. VI. APPROVAL PROCESS: THE LOCAL DESIGN AND PROJECT MANAGEMENT OFFICE SHALL BE CONTACTED TO APPROVE THE MID-RISE OR HIGH-RISE BUILDING MAIN SERVICE AND METER ROOM LOCATION AND THE REMOTE ELECTRIC METER ROOM OR CABINET LOCATIONS. THE UTILITY’S APPROVAL SHALL BE OBTAINED PRIOR TO THE INSTALLATION OF THE ELECTRICAL SERVICE AND METERING EQUIPMENT. ANY SERVICE AND METERING EQUIPMENT THAT HAS BEEN INSTALLED WITHOUT THE UTILITY’S APPROVAL SHALL BE MODIFIED OR RELOCATED AT THE CUSTOMER’S/CONTRACTOR’S EXPENSE AS NECESSARY TO MEET ALL UTILITY STANDARDS. VII METERING SECTIONS IN MAIN SWITCHBOARD NOT SHOWN. VIII EACH METER SOCKET AND ITS RELATED METER SERVICE DISCONNECT SHALL MEET ALL OF THE UTILITY’S STANDARDS. IX. METERING COMMUNICATIONS: FOR METERING COMMUNICATION REQUIREMENTS, SEE SG525, AND CONSULT WITH SDG&E’S SMART METER OPERATIONS VIA EMAIL: networkdevice@semprautilities.com d XI 10” X 10” DOUBLE-SIDED SIGN SECURELY SNAPPED INTO THE TOP OF CONE

XII 9 POUND WEIGHT REQUIRED FOR EXTRA STABILITY. XIII DISCONNECT SHALL BE CAPABLE OF BEING LOCKED IN THE OPEN/OFF POSITION. REFERENCE: a SEE PUBLIC UTILITIES CODE SECTION 780.5. b FOR METER ROOMS, SEE SG506. c FOR METER CABINETS, SEE SG509. d FOR METERING COMMUNICATION REQUIREMENTS, SEE SG525. e. FOR SERVICE AND METERING POLICIES, SEE ELECTRIC SERVICE POLICIES ON SG011, SG012, AND SG013. f FOR PLAQUE SPECIFICATIONS, SEE SG017. g SEE SG511. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 F B NO CHANGES – REAFFIRMED - JC IJ TPM 10/15/2015 E A EDITORIAL CHANGES - JC BRB MDJ 08/06/2015 D FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG510.5 5 OF 5 ELECTRICAL METERING IN MID-RISE AND HIGH-RISE BUILDINGS

SCOPE: THIS STANDARD DESCRIBES REQUIREMENTS FOR ELECTRIC SERVICE DISCONNECTS AND METER SERVICE DISCONNECTS. METER SERVICE DISCONNECT (TYPICAL) I II I II UG UG SERVICE SERVICE LOAD CONFIGURATION 1 CONFIGURATION 2 SINGLE METER INSTALLATION MULTI-METER INSTALLATION, 2 TO 6 METERS WITHOUT MAIN DISCONNECT FIGURE 1 SERVICE DISCONNECT LOCATION WITH RESPECT TO METER AND METER SERVICE DISCONNECT OPTIONAL III V IV UG SERVICE SAFETY SOCKET FOR FIRE ALARM METER LOAD FIGURE 2 MULTI-METER INSTALLATION, 2 TO 6 METERS WITH MAIN DISCONNECT OPTIONAL VI VII V VI VII UG SERVICE SAFETY SOCKET LOAD FIGURE 3 MULTI-METER INSTALLATION, NUMBERING 7 OR MORE METERS © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG511.1

1 OF 3 ELECTRIC SERVICE DISCONNECTS AND METER SERVICE DISCONNECTS

INSTALLATION: A. GENERAL INFORMATION 1. A SERVICE DISCONNECT IS A DEVICE, OR GROUP OF DEVICES, OR OTHER MEANS BY WHICH THE CONDUCTORS OF A CIRCUIT CAN BE DISCONNECTED FROM THEIR SOURCE OF SUPPLY. 2. ALL SERVICE EQUIPMENT OTHER THAN THAT PROVIDED BY SDG&E (UTILITY) IS TO BE PROVIDED AND INSTALLED BY THE CUSTOMER IN COMPLIANCE WITH THE REQUIREMENTS OF THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). a B. DISCONNECT AMPACITY AND AMPERE INTERRUPTING CAPACITY (AIC) RATING: THE METER SERVICE DISCONNECT AND MAIN SERVICE DISCONNECT SHALL MEET ALL CODE REQUIREMENTS AS DETERMINED BY THE AHJ. b C. METER SERVICE DISCONNECT 1. FOR EACH METER INSTALLED ON A SERVICE OF 600V, OR LESS, A SINGLE FUSIBLE SWITCH, CIRCUIT BREAKER, OR OTHER APPROVED DISCONNECTING MEANS SHALL BE LOCATED ON THE LOAD SIDE OF THE METER AND SHALL CONTROL ALL OF AND ONLY THE ENERGY REGISTERED BY THAT METER. EXCEPTION 1: TWO METER SERVICE DISCONNECTS ARE ACCEPTABLE IN 300 OR 400A RESIDENTIAL SERVICE EQUIPMENT. 300A SERVICE EQUIPMENT IS LIMITED TO ONE 200A MAIN BREAKER AND ONE 100A MAIN BREAKER. 400A SERVICE

EQUIPMENT IS LIMITED TO TWO 200A MAIN BREAKERS. EXCEPTION 2: MULTIPLE METER SERVICE DISCONNECTS ARE ACCEPTABLE FOR CURRENT TRANSFORMER (CT) METERING APPLICATIONS. 2. THE METER SERVICE DISCONNECT MUST BE LOCATED AT OR IMMEDIATELY ADJACENT TO THE METER. FOR EXAMPLE, THE METER SERVICE DISCONNECT MAY NOT BE LOCATED INSIDE THE BUILDING SERVED IF THE METER IS LOCATED OUTSIDE. D. MAIN SERVICE DISCONNECT d 1. FOR MULTI-METER INSTALLATIONS, ELECTRICAL CODES, ENFORCED BY THE AHJ, MAY REQUIRE THE INSTALLATION OF A MAIN SERVICE DISCONNECT LOCATED ON THE SUPPLY (LINE) SIDE OF THE METERS. WHEN A MAIN SERVICE DISCONNECT IS INSTALLED, EACH METER WILL ALSO BE REQUIRED TO HAVE ITS OWN METER SERVICE DISCONNECT. 2. IF MULTIPLE METER LOCATIONS WITHIN A BUILDING HAVE BEEN APPROVED BY THE UTILITY AND AHJ, EACH GROUP OF METERS WILL BE REQUIRED TO HAVE A FEEDER DISCONNECT GROUPED WITH THE MAIN SERVICE DISCONNECT(S). A PERMANENT PLAQUE MUST BE AFFIXED TO EACH FEEDER DISCONNECT STATING: “THIS DISCONNECT SERVES METERS LOCATED ON FLOOR(S)___________/IN ROOMS_________.

SEE DIAGRAM ON WALL TO THE LEFT/RIGHT FOR LOCATIONS OF METERS.” 3. THE DIAGRAM INDICATING THE METER LOCATIONS MUST BE A PERMANENT PLAQUE AFFIXED TO THE WALL. THE MAIN SERVICE WILL NOT BE ENERGIZED UNTIL THIS REQUIREMENT IS COMPLETE. c 4. FOR SINGLE METER INSTALLATIONS, A MAIN SERVICE DISCONNECT IS NOT PERMITTED ON THE SUPPLY (LINE) SIDE OF THE METER. BILL OF MATERIALS: NONE NOTES: I METER SERVICE DISCONNECT(S) ON LOAD SIDE OF METER II AMPACITY AND AIC RATINGS OF METER SERVICE DISCONNECT PROPER FOR PROTECTION OF LOAD CONDUCTORS AND AVAILABLE FAULT CURRENT. III MAIN DISCONNECT AHEAD OF 2 TO 6 METERS, EITHER FUSIBLE SWITCH OR CIRCUIT BREAKER © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG511.2

2 OF 3 ELECTRIC SERVICE DISCONNECTS AND METER SERVICE DISCONNECTS

NOTES (CONT’D): IV AMPACITY RATING OF METER SERVICE DISCONNECT PROPER FOR PROTECTION OF LOAD CONDUCTORS; AIC RATING COORDINATED WITH LET-THROUGH CURRENT OF CURRENT-LIMITING FUSE DEVICE AHEAD OF METERS, OR A SERIES-RATED SYSTEM. V A SAFETY SOCKET CAN WITH TEST-BYPASS FACILITIES IS REQUIRED IN ALL CASES, WHETHER SEPARATELY METERED OR SERVED THROUGH A HOUSE METER. ALARM METER SOURCE MAY BE CONNECTED ON THE LINE SIDE OF THE MAIN DISCONNECT. CONSULT WITH THE AHJ FOR ACCEPTABLE POINT OF CONNECTION. VI A MAIN DISCONNECT LOCATED AHEAD OF MORE THAN 6 METER SERVICE DISCONNECTS IS REQUIRED PER THE CALIFORNIA ELECTRIC CODE. VII AMPACITY AND AIC RATINGS OF MAIN SERVICE DISCONNECT AND METER SERVICE DISCONNECTS SHALL MEET ALL ELECTRICAL CODE REQUIREMENTS ENFORCED BY THE AHJ. REFERENCE: a FOR EQUIPMENT PROVIDED BY THE CUSTOMER, SEE SG004. b FOR INFORMATION ON THE UTILITY’S CONTRIBUTION TO FAULT CURRENT WHEN DETERMINING THE NECESSARY SHORT CIRCUIT CURRENT RATING AND AIC RATING FOR A SERVICE OR METER SERVICE DISCONNECT DEVICE, SEE SG006.

c FOR PLAQUE SPECIFICATIONS AND INSTALLATION REQUIREMENTS, SEE SG017. d FOR SPECIFIC REQUIREMENTS IN MID-RISE AND HIGH-RISE BUILDINGS, SEE SG510. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG511.3 3 OF 3 ELECTRIC SERVICE DISCONNECTS AND METER SERVICE DISCONNECTS

SCOPE: THIS STANDARD DESCRIBES GENERAL REQUIREMENTS FOR RESIDENTIAL SELF-CONTAINED SERVICE AND METERING EQUIPMENT. DEFINITIONS: • SELF-CONTAINED METERS: A SELF-CONTAINED METER IS ONE WHICH IS CAPABLE OF CARRYING THE TOTAL CURRENT AND VOLTAGE OF THE ELECTRIC SERVICE SUPPLIED TO THE CUSTOMER. THIS TYPE OF METER IS CONNECTED DIRECTLY TO THE SERVICE ENTRANCE CONDUCTORS WHEN IT IS INSERTED INTO THE METER SOCKET. INSTALLATION: A. METER SOCKET CONNECTIONS 1. METER SOCKETS FOR ALL SELF-CONTAINED METERS SHALL BE CONNECTED TO THE SERVICE ENTRANCE CONDUCTORS BY THE CONTRACTOR. CONNECTION DIAGRAMS FOR THE VARIOUS TYPES OF SERVICE EQUIPMENT ARE SHOWN ON SHEETS 2 TO 7. 2. AN SDG&E (UTILITY) EMPLOYEE WILL PROVIDE AND INSTALL THE WIRING USED IN METER SOCKETS LOCATED IN CURRENT TRANSFORMER (CT) COMPARTMENTS. B. SELF-CONTAINED METER SOCKETS: SOCKETS FOR USE WITH SELF-CONTAINED METERS ARE AVAILABLE IN TWO APPROVED RATINGS. WHEN CONNECTED TO PROPERLY SIZED SERVICE ENTRANCE CONDUCTORS, THE APPROVED STANDARD-DUTY SOCKET HAS A NOMINAL CAPACITY OF 100A COMMERCIAL AND 125A RESIDENTIAL.

THE APPROVED HEAVY-DUTY SOCKET HAS A NOMINAL CAPACITY OF 200A COMMERCIAL AND RESIDENTIAL. C. METER SOCKET CLOSING DEVICES: METER SOCKETS SHALL NOT BE EQUIPPED WITH CIRCUIT CLOSING OR BY-PASS DEVICES WHICH AUTOMATICALLY CLOSE WHEN THE METER IS REMOVED FROM THE METER SOCKET. D. EQUIPMENT CONNECTED AHEAD OF A MAIN SERVICE DISCONNECT: CIRCUITS SUPPLYING FIRE ALARMS, FIRE SPRINKLERS, FIRE PUMPS, AND EXIT LIGHTING MAY BE CONNECTED ON THE LINE SIDE OF THE MAIN SERVICE DISCONNECT THROUGH SUITABLE PROTECTION. ALL SUCH CIRCUITS MUST BE METERED, EITHER THROUGH A HOUSE METER OR A SEPARATE METER. a E. COMBINATION PULL AND METER CANS FOR UNDERGROUND OR OVERHEAD RESIDENTIAL SERVICE: RESIDENTIAL SERVICE EQUIPMENT IS MANUFACTURED WITH A COMBINATION PULL SECTION AND TERMINATING SECTION, DESIGNED FOR THE UTILITY TO INSTALL THEIR SERVICE LATERAL CONDUCTORS AND TERMINATE ON THE FACTORY PROVIDED TERMINATION LUGS, A SELF-CONTAINED METER SOCKET, AND A DISTRIBUTION SECTION FOR THE CUSTOMER’S MAIN BREAKER (ALSO REFERRED TO AS THE METER SERVICE DISCONNECT) AND FEEDER/BRANCH CIRCUIT BREAKERS.

SEE FIGURES OF THIS TYPE OF SERVICE EQUIPMENT AND INSTALLATION NOTES ON SHEETS 2 TO 7. b BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: a SEE SG511. b FOR RESIDENTIAL METER PEDESTALS, SEE SG518. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET RESIDENTIAL SELF-CONTAINED SG512.1 1 OF 7 SERVICE AND METERING EQUIPMENT GENERAL INFORMATION

SCOPE: THIS STANDARD DESCRIBES 0-600V COMBINATION PULL AND METER CANS FOR RESIDENTIAL SERVICE WITH 225A MAXIMUM, SINGLE-PHASE, 3-WIRE APPLICATIONS. 1 1 I 2 1/2” MIN. 1 1/2” N N 3 B 4 N 1 1/2” MIN. 1 1/2” MIN. Z 6 1/2” MIN. Y OPENING 5 6 X 7 FIGURE 1 FIGURE 1 COMBINATION PULL AND METER CANS COMBINATION PULL AND METER CANS FOR UNDERGROUND OR OVERHEAD FOR UNDERGROUND OR OVERHEAD RESIDENTIAL SERVICE RESIDENTIAL SERVICE 225A MAXIMUM, SINGLE-PHASE, 3-WIRE, 0-600V A 225A MAXIMUM, SINGLE-PHASE, 3-WIRE, 0-600V A FRONT VIEW SIDE VIEW SEE TABLES 1 AND 2 SEE TABLES 1 AND 2 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET RESIDENTIAL SELF-CONTAINED SG512.2 2 OF 7 SERVICE AND METERING EQUIPMENT 225A MAXIMUM

I 2 1/2” MIN. 1 1/2” N N 3 C N 1 1/2” MIN. III 1 1/2” MIN. 4 Z 6 1/2” MIN. Y Y OPENING 6 5 X 7 FIGURE 2 FIGURE 2 COMBINATION PULL AND METER CANS COMBINATION PULL AND METER CANS FOR UNDERGROUND RESIDENTIAL SERVICE ONLY FOR UNDERGROUND RESIDENTIAL SERVICE ONLY 225A MAXIMUM, SINGLE-PHASE, 3-WIRE, 0-600V 225A MAXIMUM, SINGLE-PHASE, 3-WIRE, 0-600V FRONT VIEW SIDE VIEW SEE TABLES 1 AND 2 SEE TABLES 1 AND 2 TABLE 1 COMBINATION PULL AND METER CANS RESIDENTIAL SERVICES, 225A MAXIMUM SERVICE LATERAL MINIMUM PULL UTILITY UTILITY SERVICE ENTRANCE CONDUIT SIZE SECTION DIMENSIONS MAXIMUM WIRE MAXIMUM NOMINAL CURRENT SIZE ALLOWED WIRE SIZE CAPACITY WITHOUT PIN ALLOWED WITH (AMP) MIN. MAX. Z Y X ADAPTERS PIN ADAPTERS (IN) (IN) (IN) (IN) (IN) (KCMIL) (KCMIL) 125 2 a 3 8 6 4 1/0 3/0 225 3 3 11 8 1/2 5 1/2 3/0 350 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E

A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET RESIDENTIAL SELF-CONTAINED SG512.3 3 OF 7 SERVICE AND METERING EQUIPMENT 225A MAXIMUM

TABLE 2 COMBINATION PULL AND METER CANS RESIDENTIAL SERVICE, 225A MAXIMUM ITEM DESCRIPTION 1 LUGS, LANDING (OPTIONAL) 2 CONDUCTORS, SERVICE ENTRANCE 3 LUG FOR UG SERVICE 4 LUGS, LANDING 5 CIRCUIT BREAKER DISTRIBUTION SECTION 6 PULL CAN, SEALABLE 7 CONDUIT, SERVICE LATERAL INSTALLATION: A THIS EQUIPMENT MAY BE CONSTRUCTED FOR OH, UG OR FOR COMBINATION OVERHEAD/UNDERGROUND SERVICE APPLICATIONS. WHEN CONSTRUCTED AS AN OH/UG DEVICE, A YELLOW CAUTION LABEL (2” X 3” MINIMUM) SHALL BE INSTALLED BELOW THE TERMINATIONS IN THE PULL SECTION READING: “CAUTION: BUS ENERGIZED AT ALL TIMES” B TERMINALS FOR SERVICE CONDUCTORS SHALL BE ALUMINUM BODIED RANGE TAKING LUGS WITH A RANGE OF 6 THROUGH 1/0 AWG FOR THE 125A DEVICE AND 4 THROUGH 250 KCMIL FOR THE 225A DEVICE. THE UTILITY MAY INSTALL A MAXIMUM 3/0 KCMIL USING PIN ADAPTERS IN 125A DEVICES AND 350 KCMIL USING PIN ADAPTERS IN 225A DEVICES. THE UTILITY PLANNER SHALL NOTE IF PIN ADAPTERS ARE REQUIRED ON THE ELECTRIC METER AND SERVICE LOCATION FORM AS FOLLOWS: “PIN ADAPTERS REQUIRED PER UG STANDARD 4173.”

C BONDING ACCORDING TO THE CALIFORNIA ELECTRICAL CODE SHALL BE INSTALLED PRIOR TO INSTALLATION OF UNDERGROUND SERVICE CONDUCTORS. BONDING CONNECTIONS FOR SERVICE LATERAL CONDUITS ONLY IS PERMITTED AT BOTTOM OF CAN. ANY OTHER BONDING OR GROUNDING CONNECTION MUST BE MADE ABOVE THE PULL CAN AREA AND NO GROUNDING OR BONDING CONDUCTOR IS PERMITTED TO PASS THROUGH THE PULL CAN AREA. THE PULL CAN AREA WILL BE UNDER UTILITY SEAL, THEREFORE, IT IS DEEMED INACCESSIBLE TO THE AUTHORITY HAVING JURISDICTION (AHJ) FOR INSPECTION. PROVIDE A BONDING SCREW OR JUMPER IF THE NEUTRAL IS INSULATED FROM THE ENCLOSURE. BILL OF MATERIALS: NONE NOTES: I BUSSES SHALL BE PROPERLY SUPPORTED II. SERVICE LATERAL CONDUIT SHALL ENTER THE BOTTOM OF THE PULL SECTION. III A MINIMUM RADIAL CLEARANCE OF 1 1/2 INCHES SHALL BE PROVIDED BETWEEN HOT BUS TERMINALS AND GROUNDED SURFACES OR THE NEUTRAL BUS OR TERMINATION LUG. IV. RESIDENTIAL PULL CANS SHALL BE ACCESSIBLE WITHOUT ENTERING THE BUILDING, AND WHEN EXPOSED TO THE WEATHER, SHALL BE RAINTIGHT. V. THIS DEVICE CANNOT SUPPLY OTHER METERS. REFERENCE: a SEE SG309. b.

SEE UG4173. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET RESIDENTIAL SELF-CONTAINED SG512.4 4 OF 7 SERVICE AND METERING EQUIPMENT 225A MAXIMUM

SCOPE: THIS STANDARD DESCRIBES 120/240V COMBINATION PULL AND METER CANS FOR RESIDENTIAL SERVICE FOR 300-400A, SINGLE-PHASE, 3-WIRE APPLICATIONS. 1 IV V 2’-6” 8 1/2” MIN. 7 8 6 1” MIN. 3 1/4” 9 MIN. 2 VII 1 I 1 2 3’-4” 5 3 4 10 (N) 5 6 1 1/2” 1 1/2” MIN. 1 1/2” MIN. 7 8 MIN. 9 10 11 12 1’-3 1/2” 10” MIN. 4 13 14 MIN. ACCESS 15 16 OPENING 17 18 3 19 20 21 22 23 24 25 26 11 27 28 I 1’-2 1/2” 1’-3 1/2” 6” MIN. 29 30 FIGURE 1 FIGURE 2 COMBINATION PULL AND METER CANS A B II III VI VIII a FOR UNDERGROUND RESIDENTIAL SERVICE ONLY 300-400A, SINGLE-PHASE, 3-WIRE, 120/240V SEE TABLE 1 A B II III VI VIII a SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET RESIDENTIAL SELF-CONTAINED SG512.5 5 OF 7

SERVICE AND METERING EQUIPMENT 300 - 400A

TABLE 1 COMBINATION PULL AND METER CANS, 300-400A, DESCRIPTION LIST ITEM DESCRIPTION 1 SOCKET, METER, MAIN DISTRIBUTION SECTION 2 LUG, MECHANICAL 3 SEALING 4 BARRIER 4 5 NEUTRAL, BONDED 6 METER SECTION 7 WIRE, FACTORY INSTALLED 8 SERVICE DISCONNECT UPPER SECTION (200A MAX.) 9 SERVICE DISCONNECT 200A LOWER SECTION 9 10 SUBMAINS 11 GROUND, EQUIPMENT TO WEATHERHEAD XII b I XIII FIGURE 3 COMBINATION PULL AND METER CANS FOR OVERHEAD C D IX XI RESIDENTIAL SERVICE ONLY 300-400A, SINGLE-PHASE, 3-WIRE, 120/240V FRONT VIEW © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET RESIDENTIAL SELF-CONTAINED SG512.6 6 OF 7 SERVICE AND METERING EQUIPMENT 300 - 400A

INSTALLATION: A TERMINATIONS FOR SERVICE CONDUCTORS SHALL BE ALUMINUM-BODIED MECHANICAL LUGS WITH A RANGE OF 1 AWG THROUGH 600 KCMIL. THE LUGS SHALL BE SECURED TO ASSURE VERTICAL ALIGNMENT. A MINIMUM RADIAL CLEARANCE OF 1 1/2 INCHES SHALL BE PROVIDED BETWEEN HOT BUS TERMINALS AND GROUNDED SURFACES OR NEUTRAL BUS OR TERMINATION LUG. THE 1 1/2-INCH DIMENSION MAY BE LESS IF INSULATING MATERIAL IS PROVIDED. B WHEN AN OVERHEAD SERVICE DROP WILL SUPPLY POWER TO THIS EQUIPMENT, THE CUSTOMER’S SERVICE ENTRANCE CONDUCTORS MUST ENTER THE LOWER LEFT SIDE OF THE UNDERGROUND SERVICE SECTION AND CONNECT TO THE MECHANICAL LUGS. A CONDULET WILL BE REQUIRED AND SHALL BE VISIBLE AND SEALABLE. SEE FIGURE 3. A C THE INSTALLATION SHALL BE INSPECTED BY THE AHJ PRIOR TO THE UTILITY ENERGIZING THEIR SERVICE DROP CONDUCTORS AND INSTALLING THE METER. ONCE THE SERVICE IS ENERGIZED, THE PULL CAN COVER WILL BE SEALED BY THE UTILITY AND WILL NO LONGER BE ACCESSIBLE TO THE AHJ INSPECTOR. D FOR “FLUSH-MOUNTED” INSTALLATIONS, A SOLID ONE-PIECE RISER ACCEPTABLE TO THE UTILITY AND THE AHJ IS REQUIRED.

BILL OF MATERIALS: NONE NOTES: I 3-INCH MINIMUM, 4-INCH MAXIMUM CONDUIT IN THE CENTER POSITION. UTILITY’S MAXIMUM CONDUCTOR SIZE IS 500 KCMIL. II THE PANEL SHOWN IS A COMBINATION DEVICE HAVING BOTH A UTILITY SECTION (I.E. PULL SECTION AND METERING SECTION) AND A CUSTOMER SECTION. III THE PANEL SHALL BE MARKED WITH EITHER A RATING OF “320 AMPERES CONTINUOUS” OR “400 AMPERES MAXIMUM (320 CONTINUOUS)”. IV A RING-TYPE SOCKET IS REQUIRED. THE PANEL SHALL BE PROVIDED WITH A SEALING RING AND THE METER SOCKET SHALL BE RIGIDLY MOUNTED ON A SUPPORT AND ATTACHED TO THE METER PANEL. V THE METER SOCKET MAY BE LOCATED ABOVE, TO THE LEFT OR RIGHT OF THE TERMINATING PULL SECTION. VI PULL SECTION COVER PANELS SHALL BE REMOVABLE, SEALABLE AND PROVIDED WITH TWO LIFTING HANDLES. VII THE 10-INCH MINIMUM ACCESS OPENING DIMENSION SHOWN IS MEASURED BETWEEN THE RETURN FLANGES. WHEN VIEWED I FROM THE FRONT OF THE PULL SECTION AREA, RETURN FLANGES SHALL NOT EXTEND CLOSER THAN 3/4 INCH FROM THE OUTSIDE EDGE OF THE MECHANICAL LUGS. VIII THIS DEVICE CANNOT SUPPLY OTHER METERS.

IX THIS IS AN ACCEPTABLE METHOD FOR OVERHEAD SERVICE CONNECTION FOR SURFACE-MOUNTED OR SEMI-FLUSH INSTALLATIONS ONLY. XI USING SERVICE EQUIPMENT PER FIGURES 1 AND 2 XII SERVICE ENTRANCE CONDUCTORS TO BE CONNECTED TO THE LUGS IN THE PULL CAN BY THE CONTRACTOR. XIII A VISIBLE AND SEALABLE CONDULET FOR SURFACE-MOUNTED AND SEMI-FLUSH INSTALLATIONS ONLY IS REQUIRED. REFERENCE: a FOR METER CABINET RECESS SPECIFICATIONS, SEE SG508. b FOR METALLIC CONDUIT RISER REQUIREMENTS, SEE SG105. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET RESIDENTIAL SELF-CONTAINED SG512.7 7 OF 7 SERVICE AND METERING EQUIPMENT 300 - 400A

SCOPE: THE GENERAL TEXT AND ILLUSTRATIONS FOR SAFETY SOCKET CANS AND TEST-BYPASS FACILITIES ARE SHOWN IN THIS STANDARD. VI BARRIER VI BARRIER 1/2” 1/2” MIN. 1” MIN. 1” MIN. XII 3/4” MIN. IV 1 1/4” MIN. 1” MAX. XIV 3/4” MIN. II III 1/2” 1/4” MIN. XV 7/8” MIN. 1/2” MIN. IX XIII 1 1/2” TERMINAL SCREW VIII 3” MAX. 9” MAX. FOR 6 POLES FIGURE 1 FIGURE 1 TEST-BYPASS FACILITIES FOR SAFETY I TEST-BYPASS FACILITIES FOR SAFETY I SOCKETS 100 AND 200A, 0-600V SOCKETS 100 AND 200A, 0-600V FRONT VIEW SIDE VIEW © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG513.1 1 OF 4 TEST-BYPASS FACILITIES FOR SAFETY SOCKETS

VI BARRIER VI BARRIER 1/2” MIN. 1” MIN. 1/2” XVI 3/4” MIN. 1 1/4” MIN. 1” MAX. IV 3/4” MIN. II III V 1/4” MIN. 7/8” MIN. VII XI XVI 1/2” MIN. VIII 1 1/2” 1/2” IX STUD “A” 1 3/4” 3” MAX. 9” MAX. FOR 6 POLES FIGURE 2 FIGURE 2 TEST-BYPASS FACILITIES FOR SAFETY SOCKETS I TEST-BYPASS FACILITIES FOR SAFETY SOCKETS I 100 AND 200A, 0-600V 100 AND 200A, 0-600V BUSSED AND/OR CABLE TERMINATIONS BUSSED AND/OR CABLE TERMINATIONS FRONT VIEW SIDE VIEW INSTALLATION: TEST-BYPASS REQUIREMENTS: A. BUSSED TEST-BYPASS FACILITIES ARE TO BE FACTORY-INSTALLED FOR INSTALLATIONS OF SAFETY SOCKET CANS UP TO 200A. B. THESE DEVICES ISOLATE THE METER SOCKET FROM THE ELECTRIC SOURCE, AND ARE A SAFETY MEASURE TO PROTECT SDG&E PERSONNEL INVOLVED IN METERING WORK. C. ADDITIONALLY, THE DEVICES PERMIT TESTING OR REPLACEMENT OF METERS WITHOUT INTERRUPTING THE CUSTOMER'S ELECTRIC SERVICE. THIS AVOIDS PROBLEMS SUCH AS LOSS OF COMPUTER DATA, RESETTING TIME CONTROLS, LOSS OF PERISHABLE FOOD OR MATERIAL PROCESS, ETC. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG513.2 2 OF 4 TEST-BYPASS FACILITIES FOR SAFETY SOCKETS

INSTALLATION (CONT’D): D. TEST-BYPASS FACILITIES MUST BE INSTALLED FOR ALL NON-RESIDENTIAL METER INSTALLATIONS. MINIMAL LOADS SUCH AS FIRE ALARMS, LANDSCAPE SPRINKLER, CONTROLS OR SIGN BOARDS ARE NOT EXEMPT FROM THIS REQUIREMENT. E. TEST-BYPASS FACILITIES ARE REQUIRED ON TEMPORARY SERVICE FOR CONSTRUCTION POWER TO BUILD RESIDENTIAL SINGLE- FAMILY DWELLINGS AND DUPLEXES, ON SINGLE LOTS OR IN SUBDIVISIONS, WITH SINGLE-PHASE, 120/240V, 200A MAXIMUM. 1. EXCEPTION: RESIDENTIAL METER PANELS ARE ACCEPTABLE FOR TEMPORARY SERVICE IN A PERMANENT BASE (TSPB). a F. A METER AND SERVICE INSTALLATION TO A GATE FOR A SINGLE-FAMILY RESIDENCE ALSO REQUIRES TEST-BYPASS FACILITIES. THIS ALSO APPLIES TO GATES TO ACCESS GATED COMMUNITIES. G. SERVICE USED IN COMMON FOR RESIDENTIAL PURPOSES IN A MULTI-FAMILY DWELLING DEVELOPMENT LOCATED ON A SINGLE PARCEL OF LAND QUALIFIES FOR THE DOMESTIC RESIDENTIAL DR RATE SCHEDULE (SEE SPECIAL CONDITION 8). FOR EXAMPLE, SERVICE TO A RECREATION BUILDING IN A CONDOMINIUM OR APARTMENT COMPLEX. TEST-BYPASS FACILITIES ARE NOT REQUIRED.

ALL THREE-PHASE INSTALLATIONS MUST BE EQUIPPED WITH TEST-BYPASS FACILITIES. b H. THE SAFETY SOCKET METER CAN MAY BE USED AS A COMBINATION PULL AND METER CAN FOR UNDERGROUND SERVICE, EITHER RESIDENTIAL OR COMMERCIAL. c J. AN AGRICULTURAL WELL USED FOR IRRIGATION ONLY REGARDLESS OF TYPE OF OWNERSHIP MAY BE SERVED ON A GENERAL SERVICE "COMMERCIAL" OR "AGRICULTURAL" RATE SCHEDULE REGARDLESS OF THE PHASE OF SERVICE. THIS EQUIPMENT MUST BE EQUIPPED WITH TEST-BYPASS FACILITIES. K. AN INDIVIDUAL PRIVATE DOMESTIC WELL WHICH IS SOLELY-OWNED AND PRIMARILY USED FOR DOMESTIC PURPOSES WILL BE SERVED ON THE A OR PA RATE SCHEDULE. TEST-BYPASS FACILITIES ARE REQUIRED. BILL OF MATERIALS: NONE NOTES: I STRIKE DISTANCE BETWEEN UPPER AND LOWER BUS SECTIONS SHALL NOT BE LESS THAN 1/4-INCH WHEN THE CIRCUIT-CLOSING NUT IS BACKED OFF. II CIRCUIT-CLOSING NUT SHALL BE A HEX NUT 5/8-INCH ACROSS FLATS WITH PLATED COPPER WASHER ATTACHED AND HAVE THREADS COUNTER-BORED AT BOTTOM TO FACILITATE RE-INSTALLATION. BOLT HEAD SHALL BE SECURED IN PLACE TO PREVENT TURNING AND BACKOUT.

III CIRCUIT-CLOSING NUT AND BOLT ASSEMBLY SHALL MAINTAIN THE APPLIED CONTACT PRESSURE BETWEEN THE PLATED COPPER WASHER AND THE BUS MEMBERS OF THE TEST-BYPASS BLOCK. IV INSULATING WASHER SHALL BE MADE FROM DIMENSIONALLY STABLE, NON-TRACKING MATERIAL AND SHALL PROVIDE A MINIMUM OF 1/8-INCH CREEP DISTANCE BETWEEN THE BOLT AND THE BUS SECTIONS. BUS SECTIONS SHALL BE PLATED. V WIRE STOPS ARE NOT REQUIRED IF LINE AND/OR LOADS ARE CONNECTED WITH BUS BAR. IF CABLE TERMINALS ARE USED, FIGURE 1 CONSTRUCTION REQUIREMENTS SHALL APPLY. VI RIGID INSULATING BARRIERS SHALL PROJECT AT LEAST 1/4-INCH BEYOND ANY ENERGIZED PARTS WHEN THE MAXIMUM WIRE SIZE IS INSTALLED. VII TERMINATION OF BUS BAR AND CABLE LINE OR LOAD CONDUCTORS MAY BE CABLE OR BUS. IF BUS AND CABLE TERMINATIONS ARE USED TOGETHER, PROPER LOCATIONS AND ALIGNMENT OF STUD “A” MUST BE MAINTAINED TO FACILITATE THE INSTALLATION OF BYPASS JUMPER. VIII THE TERMINAL SCREW MAY BE ALLEN TYPE (3/16-INCH ACROSS FLATS FOR 100A, 5/16-INCH ACROSS FLATS FOR 200A).

IX STUD "A" MAY BE LOCATED EITHER ON THE TERMINAL BODY, ON THE BUS MEMBER BETWEEN THE CIRCUIT-CLOSING NUT, AND THE WIRE STOP OR INCORPORATED AS PART OF THE WIRE STOP. XI FOR SERVICEABILITY PURPOSES, THE LINE AND/OR LOAD BUS IS TO BE CONNECTED TO THE BUS BLOCK MEMBER IN A MANNER WHICH WILL ALLOW READY REPLACEMENT OF THE TEST-BYPASS BLOCK ASSEMBLY. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG513.3 3 OF 4 TEST-BYPASS FACILITIES FOR SAFETY SOCKETS

NOTES (CONT’D): XII #12-24 STUD SECURED TO BUS AND HEX NUT 1/2-INCH ACROSS FLATS XIII STUD “A” #12-24 WITH HEX NUT 1/2-INCH ACROSS FLATS XIV WIRE STOPS SHALL EXTEND TO CENTER OF TERMINAL OPENING OR BEYOND. XV TERMINALS SHALL BE ALUMINUM BODIED. THE OPENING SHALL EXTEND THROUGH THE TERMINAL BODY AND, IF WIRE HOLE IS ROUND, SHALL BE CHAMFERED AS NECESSARY TO FACILITATE INSTALLATION OF THE LARGEST SIZE WIRE. d XVI #12-24 STUD AND HEX NUT 1/2-INCH ACROSS FLATS REFERENCE: a SEE SG210. b SEE DOMESTIC RESIDENTIAL DR RATE SCHEDULE, SPECIAL CONDITION 8. c FOR DETAILS, SEE SG514. d FOR REQUIRED CONDUCTOR RANGE, SEE SG514. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG513.4 4 OF 4 TEST-BYPASS FACILITIES FOR SAFETY SOCKETS

SCOPE: THIS STANDARD PROVIDES INFORMATION ON REQUIREMENTS FOR INSTALLATION OF SAFETY SOCKET METER CANS. II VII 1 1/2” 1 1/2” MIN. 1’-0” MIN. XI III MIN. III 3” 2’-0” d VI I L L L L L L IV XV 2” TO 3” I O I O I O 2” MAX. N A N A N A 3” MAX. E D E D E D 8” 2” MAX. MIN. 5” XIV 2” MAX. 4 1/2” MIN. 2” MAX. FIGURE 1 FIGURE 1 FIGURE 1 SAFETY SOCKET CAN WITH SAFETY SOCKET CAN WITH SAFETY SOCKET CAN WITH FACTORY-INSTALLED FACTORY-INSTALLED FACTORY-INSTALLED TEST-BYPASS FACILITIES TEST-BYPASS FACILITIES TEST-BYPASS FACILITIES 100A (STANDARD DUTY) 100A (STANDARD DUTY) 100A (STANDARD DUTY) FRONT VIEW SIDE VIEW BOTTOM VIEW LOWER COVER REMOVED V VIII IX XII XIII V VIII IX XII XIII V VIII IX XII XIII © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG514.1 1 OF 6 SAFETY SOCKET METER CANS

II VII 1 1/2” 1 1/2” MIN. MIN. XI 1’-2” MIN. III V III 3” 2’-6” d VI XVI 3” TO 3 1/2” IV L L L L L L XV I O I O I O 3” MAX. N A N A N A E D E D E D 11” 8” XIV 2 1/2” MAX. 2 1/2” MAX. 6” MIN. FIGURE 2 FIGURE 2 FIGURE 2 SAFETY SOCKET CAN WITH SAFETY SOCKET CAN WITH SAFETY SOCKET CAN WITH FACTORY-INSTALLED FACTORY-INSTALLED FACTORY-INSTALLED TEST-BYPASS FACILITIES TEST-BYPASS FACILITIES TEST-BYPASS FACILITIES 200A (HEAVY DUTY) 200A (HEAVY DUTY) 200A (HEAVY DUTY) FRONT VIEW SIDE VIEW BOTTOM VIEW LOWER COVER REMOVED VIII IX XII XIII VIII IX XII XIII VIII IX XII XIII © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG514.2 2 OF 6 SAFETY SOCKET METER CANS

MAIN SERVICE LOADS MAIN SERVICE LOADS EXAMPLE 1 EXAMPLE 2 SIX METERS AND SWITCHES OR LESS SIX METERS AND SWITCHES OR LESS XVII CEILING OR OTHER OBSTRUCTION 10” MIN. 8” MIN. WALL OR OTHER OBSTRUCTION LOADS EXAMPLE 3 EXAMPLE 4 SELF CONTAINED METERS MORE THAN SIX METERS AND SWITCHES FIGURE 3 TYPICAL MULTIPLE SAFETY SOCKET CAN GROUPING ARRANGEMENTS FOR COMMERCIAL INSTALLATIONS WITH SELF-CONTAINED METERS © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG514.3 3 OF 6 SAFETY SOCKET METER CANS

1 8 8 8 3 9 2 4 6’-3” MAX. 5 4’-0” MIN. (3’-0” MIN. ENCLOSED) 2 2 7 3 FINAL GRADE EXAMPLE 1 EXAMPLE 2 EXAMPLE 3 NORMAL UG SERVICE ALTERNATE METHOD ALTERNATE METHOD FOR UG CONNECTION FOR STANDARD FOR UG SERVICE SERVICE CONNECTION SAFETY SOCKET METER CAN CONNECTION WALL-MOUNTED POST-MOUNTED WALL-MOUNTED 6 TABLE 1 SAFETY SOCKET METER CAN DESCRIPTION LIST ITEM DESCRIPTION 1 MAIN AND LOAD CENTER 2 TEST-BYPASS FACILITIES AREA 3 MAIN BELOW SAFETY SOCKET METER CAN 7 4 SEALABLE CONDULET 5 OPTIONAL 6 MAIN 7 UNDERGROUND PULL CAN 8 METERING SECTION EXAMPLE 4 9 PULL SECTION LOAD DISCONNECTS FIGURE 4 SAFETY SOCKET METER CAN USED FOR UNDERGROUND SERVICE D E XVIII SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET

SG514.4 4 OF 6 SAFETY SOCKET METER CANS

INSTALLATION: A WIRING OF SAFETY SOCKET METER CANS: 1. SERVICE ENTRANCE AND LOAD CONDUCTORS INSTALLED IN SEPARATE RACEWAYS MAY ENTER OR EXIT THE SAFETY SOCKET METER CAN AT EITHER THE TOP, BOTTOM, SIDE OR REAR. THE ELECTRICAL CONTRACTOR SHALL CONNECT THOSE CONDUCTORS TO THE FACTORY-INSTALLED TEST-BYPASS FACILITIES. 2. NO CONNECTIONS MAY BE MADE IN A SAFETY SOCKET METER CAN TO SUPPLY ANY OTHER METER, AND NOT MORE THAN ONE LOAD CIRCUIT MAY LEAVE THE CAN. 3. IN MULTI-METER INSTALLATIONS OF SAFETY SOCKET METER CANS, A MAIN SWITCH OR BREAKER CAN ONLY BE INSTALLED ON THE SUPPLY SIDE OF TWO OR MORE METERS, EXCEPT WHEN REQUIRED BY THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). 4. WHEN USED TO TERMINATE SDG&E (UTILITY) SERVICE LATERAL CONDUCTORS, THE SERVICE CONDUIT SHALL ENTER THE BOTTOM OF THE CAN. THE LOAD CONDUCTORS MAY NOT EXIT THE REAR OF THE CAN BEHIND THE TEST-BYPASS FACILITIES. 5. THE UTILITY WILL NOT SUPPLY 2-WIRE, 120V SERVICE OR METERING WITHOUT APPROVAL FROM SERVICE STANDARDS. SINGLE-PHASE SERVICE WILL BE 3-WIRE REGARDLESS OF THE VOLTAGE, I.E. 120/208V OR 120/240V. a B.

NEUTRAL OR GROUND CONDUCTOR IN SAFETY SOCKET METER CANS: 1. THE NEUTRAL SERVICE ENTRANCE CONDUCTOR FOR A SELF-CONTAINED METER SHALL CONNECT IN THE SAFETY SOCKET METER CAN AND MAY BE CONTINUOUS. 2. ON OVERHEAD SERVICE INSTALLATIONS THE SERVICE GROUND CONDUCTOR, PROVIDED AS THE REDUNDANT FOURTH WIRE CORNER-GROUND CONDUCTOR OF A 480V DELTA SERVICE, WILL BE CONNECTED TO THE CUSTOMER'S IDENTIFIED EQUIPMENT GROUNDING CONDUCTOR AT THE POINT OF SERVICE CONNECTION (DRIP LOOP). THE CUSTOMER SHALL IDENTIFY B-PHASE RED IN COLOR. b C. ALUMINUM CONDUCTORS IN SAFETY SOCKET METER CANS: 1. TEST-BYPASS FACILITIES WITH ALUMINUM BODIED LUGS WILL BE PROVIDED AND INSTALLED BY THE MANUFACTURER. THE CONTRACTOR WILL MAKE THE CONNECTIONS TO THE BYPASS FACILITIES, UNLESS THE EQUIPMENT IS USED AS A PULL CAN, IN WHICH CASE THE UTILITY WILL TERMINATE THEIR SERVICE LATERAL CONDUCTORS TO THE LINE SIDE LUG OF EACH TEST BLOCK. 2. CUSTOMER MAXIMUM CONDUCTOR SIZES IN ALUMINUM SHALL NOT EXCEED 1/0 AWG FOR USE IN THE STANDARD DUTY CAN AND 250 MCM IN THE HEAVY DUTY CAN.

THE UTILITY MAY USE A MAXIMUM 3/0 AWG IN A STANDARD DUTY CAN AND 350 MCM IN THE HEAVY DUTY CAN USING PIN ADAPTERS. 3. THE USE OF A JOINT COMPOUND OR OXIDATION INHIBITOR IS RECOMMENDED FOR ALL ALUMINUM CONNECTIONS. HOWEVER, THE USE OF OXIDATION INHIBITORS IS NO SUBSTITUTE TO HAVING AN APPROVED ALUMINUM WIRE TERMINAL. D THE SAFETY SOCKET METER CAN MUST BE SECURELY MOUNTED ON A 3-INCH MINIMUM RIGID METAL PIPE OR 4” X 4” TREATED WOOD POST. THE PIPE OR POST MUST BE FIRMLY SET. THE UNDERGROUND CONDUIT MAY NOT BE UTILIZED AS THE SUPPORT. E THE SAFETY SOCKET METER CAN MAY BE USED AS A COMBINATION SERVICE TERMINATING PULL AND METER CAN FOR AN e UNDERGROUND SERVICE, EITHER RESIDENTIAL OR COMMERCIAL/INDUSTRIAL. THE UNDERGROUND SERVICE RISER SHALL ENTER THE BOTTOM OF THE CAN AS SHOWN IN FIGURE 4, EXAMPLE 1. A BILL OF MATERIALS: NONE NOTES: I ALUMINUM BODIED TERMINALS FOR NO. 6 THROUGH 1/0 MCM CU-AL WIRE. THE UTILITY MAY INSTALL A MAXIMUM 3/0 WIRE USING PIN ADAPTERS. II HUBS CAPPED OFF IF USED FOR UNDERGROUND FEED. III RIGID INSULATING BARRIERS d © 1998 - 2025 San Diego Gas & Electric Company.

All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG514.5 5 OF 6 SAFETY SOCKET METER CANS

NOTES (CONT’D): IV VERTICAL LAY-IN, DOUBLE NEUTRAL LUG WITH 1/0 MCM CU-AL WIRE CAPACITY, MOUNTED ON EITHER SIDEWALL. V TEST-BYPASS BLOCKS SHALL BE BUSSED OR WIRED TO SOCKET JAWS OR TERMINALS. b VI UPPER TEST CONNECTOR STUDS VII ALL COVERS SHALL BE INDEPENDENTLY REMOVABLE. UPPER COVER SHALL BE NON-REMOVABLE WHEN METER IS IN PLACE. METER SOCKET SHALL BE MOUNTED ON SUPPORT AND ATTACHED TO PANEL. LOWER COVER SHALL BE SEALABLE AND PERMANENTLY LABELED: “DO NOT BREAK SEALS. NO FUSES INSIDE.” e VIII FOR 3-PHASE, 4-WIRE, CONNECT SEVENTH JAW TO BODY OF NEUTRAL LUG WITH NO. 12 COPPER WIRE, WHITE IN COLOR. IX FOR 3-PHASE, 4-WIRE DELTA, IDENTIFY RIGHT HAND TEST-BYPASS BLOCK (2 POLES) AS POWER LEG, ORANGE IN COLOR (C- PHASE). XI FOR 3-PHASE, 3-WIRE, INSTALL BUS TO CONNECT LINE AND LOAD POLES TOGETHER AT TOP OF CENTER TEST-BYPASS BLOCK AND CONNECT FIFTH JAW TO THIS BUS USING NO. 12 WIRE, RED IN COLOR. XII FOR SINGLE-PHASE, 3-WIRE, PROVIDE TWO TEST-BYPASS BLOCKS MOUNTED IN THE OUTER POSITIONS AND A 4-JAW SOCKET.

XIII FOR SINGLE-PHASE, 3-WIRE, 120/208V, PROVIDE TWO TEST-BYPASS BLOCKS MOUNTED IN THE OUTER POSITIONS AND A 5-JAW SOCKET. CONNECT FIFTH JAW OF METER SOCKET TO BODY OF NEUTRAL LUG WITH NO. 12 COPPER WIRE, WHITE IN COLOR. XIV PERMANENT LABELS ON INSIDE BACK OF ENCLOSURE IN 3/4-INCH (MINIMUM) HIGH BLOCK LETTERS XV ALTERNATE NEUTRAL LUG POSITION XVI ALUMINUM BODIED TERMINALS FOR 1/0 THROUGH 250 MCM CU-AL WIRE. THE UTILITY MAY INSTALL A MAXIMUM 350 WIRE USING PIN ADAPTERS. XVII MAIN SERVICE DISCONNECTING MEANS MAY BE REQUIRED PER CODE. XVIII GANGED INSTALLATION OF SAFETY SOCKET METER CANS. MAIN AHEAD OF SEVEN OR MORE METER SERVICE DISCONNECTS IS REQUIRED PER CODE. REFERENCE: a SEE CHARACTER OF SERVICE ON SG004. b SEE SG516: METER TYPE AND SOCKET CLIP ARRANGEMENT. c. SEE UG4173 d SEE SG513: TEST-BYPASS FACILITIES FOR SAFETY SOCKETS. e FOR SEALING REQUIREMENTS, SEE SG503. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F

B FORMATTING EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG514.6 6 OF 6 SAFETY SOCKET METER CANS

SCOPE: THIS STANDARD PROVIDES GENERAL INFORMATION ON REQUIREMENTS FOR INSTALLATION OF TRANSFORMER RATED METERS, AND WALL-MOUNTED SERVICE AND METERING EQUIPMENT. INSTALLATION: A. TRANSFORMER RATED METERS: 1. WHEN THE ELECTRICAL SUPPLY NEEDS OF THE CUSTOMER EXCEEDS THE 200A CAPACITY OF THE SELF-CONTAINED METER AND ITS HEAVY DUTY SOCKET, CURRENT TRANSFORMERS (CTS), WHICH CONNECT TO THE SERVICE ENTRANCE CONDUCTORS, MUST BE USED. A TRANSFORMER RATED METER IS INSTALLED TO MEASURE THE ENERGY DELIVERED TO THE CUSTOMER. A CT CAPACITY MULTIPLIER IS APPLIED TO THE BILLING REGISTER ON THE METER. BOTH THE CTS AND THE METER ARE FURNISHED AND INSTALLED BY SDG&E (UTILITY). 2. THE TRANSFORMER RATED METER, WHEN INSERTED IN ITS SOCKET, IS WIRED TO THE CT. THE CTS MUST BE LOCATED BEHIND THE METER AND TEST SWITCH PANEL COVER(S). CUSTOMER-OWNED EQUIPMENT AND WIRING IS NOT ALLOWED WITHIN THE UTILITY-SEALED CT AND METERING COMPARTMENT. 3. THE CUSTOMER FURNISHES AND INSTALLS AN APPROVED CT ENCLOSURE AND METER SOCKET. a B. SOCKETS FOR TRANSFORMER RATED METERS:

A CT RATED SOCKET IS USED WITH TRANSFORMER RATED METERS. THE SOCKET IS FURNISHED AND INSTALLED BY THE CUSTOMER. THE UTILITY WILL FURNISH, INSTALL, OWN AND MAINTAIN THE NECESSARY INSTRUMENT TRANSFORMERS, TEST FACILITIES AND METERS. C. COMBINATION CURRENT TRANSFORMER AND METER SOCKET CAN – OVERHEAD SERVICE: 1. WHEN THE ELECTRIC SERVICE IS 201–800A, A COMBINATION CAN, SHOWN ON SHEET 5, IS ONE TYPE OF APPROVED ENCLOSURE WHICH THE CUSTOMER MAY FURNISH TO HOUSE AND SUPPORT THE CTS AND METER. IN THIS CASE, A CT MOUNTING BASE, WITH AMPERAGE CAPACITY OF 400A, IS ALSO FURNISHED. THE SERVICE ENTRANCE CONDUCTORS ARE CONNECTED TO THE CT MOUNTING BASE BY THE CONTRACTOR. 2. NO CONNECTIONS SHALL BE MADE IN THE CT CAN TO SUPPLY ANY OTHER METER. D. COMBINATION CURRENT TRANSFORMER AND METER SOCKET CAN – UNDERGROUND SERVICE: 1. WHEN THE ELECTRIC SERVICE IS RATED 201–800A, A COMBINATION CAN, SHOWN ON SHEET 5, MAY BE USED FOR RESIDENTIAL OR COMMERCIAL SERVICE. 2. NO CONNECTIONS SHALL BE MADE IN THE CT CAN TO SUPPLY ANY OTHER METER. 3.

THE CONTRACTOR SHALL FURNISH AND INSTALL A CT MOUNTING BASE AND CONDUCTORS OF THE PROPER TYPE AND SHALL CONNECT THE CONDUCTORS FROM THE TERMINATION SECTION OF THE CT MOUNTING BASE. 4. SEE SHEET 8 FOR 400-800A, THREE-PHASE, 4-WIRE, WALL-MOUNTED UNDERGROUND PULL CAN WITH CT, METER SOCKET AND MAIN DISCONNECT(S) IN ADJACENT SECTION. E. METER SERVICE DISCONNECT: ALL METER SERVICE DISCONNECTS ON TRANSFORMER RATED METER INSTALLATIONS SHALL HAVE A PROVISION FOR LOCKING IN THE OPEN/OFF POSITION AND SHALL BE IMMEDIATELY ADJACENT TO THE METER PANEL. BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: a FOR SPECIAL 400A RESIDENTIAL INSTALLATION, SEE SG512. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET

TRANSFORMER RATED METERS AND WALL-MOUNTED SG515.1 1 OF 9 SERVICE AND METERING EQUIPMENT GENERAL INFORMATION

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR CURRENT TRANSFORMER MOUNTING BASES FOR INSTALLATION IN CURRENT TRANSFORMER ENCLOSURES. 5” 1A III C.T. C.T. 1 3/8” N 7/8” ° 1 1/2” 8 1/8” 2 C.T. C.T. 1 3/8” 3A 8” MIN. 2” MIN. I 4 2 1/2” MAX. 5 3 5/16” FIGURE 1 CURRENT TRANSFORMER MOUNTING BASE FOR INSTALLATION IN CURRENT TRANSFORMER ENCLOSURE 0-400A MAXIMUM, 0-600V, SINGLE-PHASE, THREE-WIRE SERVICE SEE TABLE 1 © 1998 – 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET TRANSFORMER RATED METERS AND WALL-MOUNTED SG515.2 2 OF 9 SERVICE AND METERING EQUIPMENT CURRENT TRANSFORMER MOUNTING BASE

5” 1B III C.T. C.T. C.T. 1 3/8” 1 1/2” 7/8” N 8 1/8” ° 2 C.T. C.T. C.T. 1 3/8” 3B 7” 7” MIN. MIN. I V 2” MIN. 4 2 1/2” MAX. 5 3 5/16” FIGURE 2 CURRENT TRANSFORMER MOUNTING BASE FOR INSTALLATION IN CURRENT TRANSFORMER ENCLOSURE 201-800A MAXIMUM, 0-600V, THREE-PHASE, THREE-WIRE OR FOUR-WIRE, WYE OR DELTA CONNECTED-SERVICE SEE TABLE 1 TABLE 1 CURRENT TRANSFORMER MOUNTING BASE DESCRIPTION LIST ITEM DESCRIPTION A 2 C.T. MOUNTING BOLTS, 4 PLACES (TYP.) 1 B 2 C.T. MOUNTING BOLTS, 6 PLACES (TYP.) 2 10-32 MACHINE SCREW AND WASHER DRILLED AND TAPPED INTO BUS A BUS MARKING “C.T.”. 4 LOCATIONS (TYP.) 3 B BUS MARKING “C.T.”. 6 LOCATIONS (TYP.) 4 INSULATING SUPPORTS 5 INSULATING BARRIER 5 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET TRANSFORMER RATED METERS AND WALL-MOUNTED SG515.3 3 OF 9 SERVICE AND METERING EQUIPMENT CURRENT TRANSFORMER MOUNTING BASE

INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I MOUNTING BASE ACCEPTS BAR TYPE CTS ONLY. II. TWO 1/2-INCH STEEL BOLTS SHALL BE PROVIDED FOR EACH CT MOUNTING POSITION. EACH BOLT SHALL BE SECURED IN PLACE AND FURNISHED WITH A SPRING WASHER AND A NUT. THE SPRING WASHERS MAY BE EITHER A CONE-TYPE (BELLEVILLE) OR A SPLIT-RING WASHER AND A FLAT WASHER. ALL PARTS SHALL BE PLATED TO PREVENT CORROSION. III TERMINATIONS FOR SERVICE CONDUCTORS SHALL BE THREE-POSITION, ALUMINUM-BODIED MECHANICAL LUGS WITH A RANGE ACCEPTING ONE 4 AWG THROUGH 500 KCMIL CONDUCTOR. IV. FOR APPLICATIONS, SEE SHEETS 5–9. V CT CENTER PHASE POSITION SHALL BE BUSSED STRAIGHT THROUGH FOR 3-PHASE, 3-WIRE, SERVICE VOLTAGE INSTALLATIONS. REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET TRANSFORMER RATED METERS AND WALL-MOUNTED SG515.4 4 OF 9 SERVICE AND METERING EQUIPMENT CURRENT TRANSFORMER MOUNTING BASE

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR COMBINATION CURRENT TRANSFORMER AND METER SOCKET CANS. 10” 1 I.D. 1/8” 2 III 3” 2” 3’-6” 3” MIN. IV 4 11” MIN. 1’-6” II 3 3” 3” 5” 5” 3 1/2” MAX. 3 1/2” MAX. Z FIGURE 1 COMBINATION CURRENT TRANSFORMER AND METER SOCKET CAN FOR RESIDENTIAL OR COMMERCIAL/INDUSTRIAL USE – OVERHEAD SERVICE ONLY A B C D SEE TABLES 1 AND 2 c 10” VI 1 I.D. 1/8” 3” 2” 3” 2 III XI IV 4 II 11” 4’-4” MIN. MIN. VII 3” 3” 1’-10” 3 MIN. 1’-3” 1’-3” IV XII IX a 6” 3 1/2” MAX. Z FINAL GRADE MIN. FIGURE 2 COMBINATION CURRENT TRANSFORMER AND METER SOCKET CAN 0-600V MAXIMUM, RESIDENTIAL OR COMMERCIAL/INDUSTRIAL USE – UNDERGROUND SERVICE ONLY V VIII SEE TABLES 1 AND 2 I © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET TRANSFORMER RATED METERS AND WALL-MOUNTED SG515.5 5 OF 9 SERVICE AND METERING EQUIPMENT COMBINATION CURRENT TRANSFORMER AND METER SOCKET CAN

TABLE 1 TABLE 2 MINIMUM BOX DIMENSIONS CT AND METER SOCKET CAN DESCRIPTION LIST Z CONFIGURATION ITEM DESCRIPTION (IN) 1 SEALABLE STUDS (4 PLACES) 3Ø 3-WIRE 4-WIRE Δ 36 2 REMOVABLE TEST PERCH Y 3 TRANSFORMER MOUNTING BASE FURNISHED AND INSTALLED BY CUSTOMER 1Ø 24 4 HANDLES INSTALLATION: A SERVICE ENTRANCE CONDUCTORS MUST ENTER ABOVE THE TEST PERCH. LOAD CONDUCTORS MUST EXIT BELOW THE CT MOUNTING BASE. THE CAN MUST BE INSTALLED IN VERTICAL POSITION AS SHOWN. B ON OVERHEAD 3-PHASE, 3-WIRE DELTA SERVICES, THE REDUNDANT GROUND CONDUCTOR, MARKED GREEN, OR GREEN WITH YELLOW STRIPES IN COLOR, SHALL PASS THROUGH THE CT CAN, BE CONTINUOUS AND GROUNDED TO THE CAN. C GROUNDING MAY BE ACCOMPLISHED WITH A NO. 8 MINIMUM TAP FROM THE NEUTRAL OR BY REMOVING THE CONDUCTOR INSULATION AND CONNECTING THE CONDUCTOR DIRECTLY TO A LAY-IN GROUNDING LUG IN THE CAN. D PROVIDE A GROUND CONDUCTOR TERMINATION AT THE SERVICE TERMINATION POINT. A BONDING LUG SHALL BE PROVIDED FOR A MINIMUM 1/0 AWG BONDING CONDUCTOR. A JUMPER SHALL BE PROVIDED FOR CONNECTION TO THE NEUTRAL OR GROUNDED SERVICE TERMINATION LUG.

BILL OF MATERIALS: NONE NOTES: I. MAXIMUM AMPERE CAPACITY: a. 400A FOR SINGLE-PHASE COMMERCIAL b. 600A FOR SINGLE-PHASE RESIDENTIAL c. 800A FOR THREE-PHASE RESIDENTIAL OR COMMERCIAL II NO CONDUCTORS PERMITTED IN THE SHADED AREA. III REMOVABLE TEST SWITCH PERCH SHALL BE DRILLED, TAPPED AND INSTALLED ON THE TOP POSITION. b IV TRANSFORMER MOUNTING BASE COVER SHALL HAVE TWO LIFTING HANDLES, BE A MAXIMUM OF 9 SQUARE FEET, AND HAVE A CAUTION SIGN READING: “DO NOT BREAK SEALS. NO FUSES INSIDE.” V PROVISION SHALL BE MADE FOR BONDING THE NEUTRAL TO THE ENCLOSURE. VI ALL SECURING SCREWS SHALL BE CAPTIVE. ALL PANELS AND COVERS SHALL BE SEALABLE. VII PROVISION SHALL BE MADE IN THE CT COMPARTMENT FOR A MECHANICAL LUG BONDABLE TERMINATION OF THE SERVING UTILITY’S NEUTRAL. THIS TERMINATION MAY BE INSTALLED ON THE CT MOUNTING BASE AS SHOWN ON SHEETS 2, 3, AND 4. VIII THE MINIMUM DISTANCE TO THE LOWEST MECHANICAL LUG IS 22 INCHES. THE HEIGHT OF THE NEUTRAL TERMINATION LUG MAY I BE REDUCED TO 20-INCH MINIMUM. IX THE UNDERGROUND SERVICE CONDUIT SHALL ENTER THE BOTTOM OF THE CAN.

XI LOAD CONDUCTORS MUST EXIT ABOVE THE CT MOUNTING BASE AND TEST PERCH. XII SHADED AREA IS FOR UTILITY SERVICE LATERAL CONDUCTORS ONLY. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET TRANSFORMER RATED METERS AND WALL-MOUNTED SG515.6 6 OF 9 SERVICE AND METERING EQUIPMENT COMBINATION CURRENT TRANSFORMER AND METER SOCKET CAN

REFERENCE: a FOR SIZE AND NUMBER OF CONDUITS, SEE SG309. b SEE SG517 c FOR METER HEIGHT REQUIREMENTS, SEE SG504. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET TRANSFORMER RATED METERS AND WALL-MOUNTED SG515.7 7 OF 9 SERVICE AND METERING EQUIPMENT COMBINATION CURRENT TRANSFORMER AND METER SOCKET CAN

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR WALL-MOUNTED UNDERGROUND PULL CANS EQUIPPED WITH MECHANICAL LUGS THAT HAVE A CURRENT TRANSFORMER COMPARTMENT, METER SOCKET AND MAIN DISCONNECT IN AN ADJACENT SECTION. 1’-2” 1’-4” 1 1’-10” 3’-0” 1’-4” 3 2 5’-0” 4 6’-3” 6 5 IX 6” MIN. GRADE LEVEL 3 1/2” 6” MIN. FINAL GRADE FIGURE 1 WALL-MOUNTED UNDERGROUND PULL CAN EQUIPPED WITH MECHANICAL LUGS WITH CURRENT TRANSFORMER COMPARTMENT, METER SOCKET AND MAIN DISCONNECT(S) IN ADJACENT SECTION 0-600V, 400-800A MAXIMUM, 3-PHASE, 4-WIRE SERVICE SEE TABLE 1 TABLE 1 WALL-MOUNTED UNDERGROUND PULL CAN DESCRIPTION LIST ITEM DESCRIPTION 1 SERVICE CONDUIT AREA 2 WALL-MOUNTED 3 METER DOOR 4 400-800A C.T. COMPARTMENT 5 CIRCUIT BREAKERS OR T-FUSEABLE PULLOUTS 6 PULL CAN © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET TRANSFORMER RATED METERS AND WALL-MOUNTED SG515.8 8 OF 9 SERVICE AND METERING EQUIPMENT WALL-MOUNTED UNDERGROUND PULL CAN

INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. SERVICE LATERAL CONDUITS, FIRMLY SECURED WITH LOCKNUT, HUB OR BUSHING, MUST ENTER BOTTOM OF PULL CAN. MAXIMUM CONDUIT INTRUSION INSIDE CAN IS 1-INCH. LOAD CONDUITS MUST EXIT ABOVE SHADED AREA. II. BONDING CONNECTION FOR SERVICE LATERAL CONDUITS ONLY IS PERMITTED AT BOTTOM OF CAN. ANY OTHER BONDING OR GROUNDING CONNECTION MUST BE MADE ABOVE THE SHADED AREA AND NO GROUNDING OR BONDING CONDUCTOR IS PERMITTED TO PASS THROUGH SHADED AREA. III. REMOVABLE TEST SWITCH PERCH SHALL BE DRILLED AND TAPPED. a IV. CT COMPARTMENT COVER SHALL HAVE TWO LIFTING HANDLES, BE A MAXIMUM OF 9 SQUARE FEET, AND A CAUTION SIGN READING: "DO NOT BREAK SEALS, NO FUSES INSIDE." V. ALL SECURING SCREWS SHALL BE CAPTIVE. ALL PANELS AND COVERS SHALL BE SEALABLE. VI. FOR TRANSFORMER BASE DETAILS, SEE SHEET 3. VII. THE MINIMUM DISTANCE FROM BASE OF PULL CAN TO THE LOWEST MECHANICAL LUG IS 26 INCHES. VIII. FOR ADDITIONAL TRANSFORMER RATED METERING INFORMATION, SEE SHEET 1. IX SHADED AREA IS FOR UTILITY SERVICE LATERAL CONDUCTORS ONLY. REFERENCE: a SEE SG517

b FOR METER HEIGHT REQUIREMENTS, SEE SG504. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET TRANSFORMER RATED METERS AND WALL-MOUNTED SG515.9 9 OF 9 SERVICE AND METERING EQUIPMENT WALL-MOUNTED UNDERGROUND PULL CAN

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR METER TYPE AND SOCKET CLIP ARRANGEMENT. ATTENTION: * THE METER TYPE AND NUMBER OF SOCKET CLIPS AND THEIR ARRANGEMENT VARIES WITH THE PHASE AND VOLTAGE OF SERVICE SUPPLIED TO THE CUSTOMER. TABLES 2 AND 3 LIST THE REQUIREMENTS. TABLE 1 ABBREVIATION LIST S SOCKET METER N NETWORK 120/208 METER P POLY PHASE AUTORANGING 120-480 TABLE 2 SELF-CONTAINED METER SOCKET SMART METER TYPE OF SERVICE METER FORMS METER CLIPS (AMPS) TYPE 1 PHASE 2 WIRE 120V IV 1S CL200 4 C2SODL1 1 PHASE 3 WIRE 120/208V a 12S NETWORK CL200 200 OR LESS 5 CN2SODL12 1 PHASE 3 WIRE 120/240V 2S CL200 C2SODL2 1 PHASE 3 WIRE 120/240V 2S CL320 400 4 C2SOL2E 1 PHASE 3 WIRE 240/480V 2S CL200 CP2SOL2 3 PHASE 4 WIRE 120/208V WYE 3 PHASE 4 WIRE 120/240 DELTA 16S CL200 7 CP1SOL16 200 OR LESS 3 PHASE 4 WIRE 277/480V WYE 3 PHASE 3 WIRE (4TH WIRE GROUNDING CONDUCTOR REQUIRED) 240 VOLT CORNER GRD II IV 12S CL200 5 CP1SOL12 480 CORNER GRD II V TABLE 3 CURRENT TRANSFORMER RATED METER TYPE OF SERVICE METER FORMS METER CLIPS I SMART METER TYPE 1 PHASE 3 WIRE 120/240V 4S 6 C2SOL4

3 PHASE 4 WIRE 120/208V WYE 3 PHASE 4 WIRE 120/240 DELTA 9S CP1SAL9 3 PHASE 4 WIRE 277/480V WYE 15 3 PHASE 3 WIRE (4TH WIRE GROUNDING CONDUCTOR REQUIRED) 240 VOLT CORNER GRD II IV 480 CORNER GRD II V 5S CP1SAL5 3 PHASE 3 WIRE 12KV 3 PHASE 4 WIRE 12KV 9S CP1SAL9 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/NOTES UPDATE EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG516.1 1 OF 2 METER TYPE AND SOCKET CLIP ARRANGEMENT

4 CLIP 5 CLIP 6 CLIP 7 CLIP 8 CLIP 15 CLIP FIGURE 1 SEE TABLE 4 TABLE 4 CLIPS FOR METER TYPES 5 CLIP 6 CLIP TYPE 4 CLIP SELF-CONTAINED TRANS RATED 7 CLIP 8 CLIP 15 CLIP METERS III METERS VII C2SOL1 CP1SAL9 APPLICABLE C2SODL1 CNSOL12 CP1SAL5 TO SMART C2SOL2 CNSODL12 C2SOL4 CP1SOL16 - CP1SOL9 METER C2SODL2 CPSOL12 CP1SOL5 TYPES C2SOL2E CP2SAZ9 INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I ALL METER SOCKET TERMINAL CLIPS MUST BE BACK CONNECTED, EXCEPT COMBINATION CURRENT TRANSFORMER AND METER SOCKET CANS. b II 4TH WIRE (REDUNDANT GROUNDING CONDUCTOR ONLY – NOT A NEUTRAL), DELTA-CONNECTED WITH “B” PHASE III THE REQUIRED POSITION OF THE 5TH CLIP FOR SELF-CONTAINED METER SOCKETS IS 9 O’CLOCK (270 DEGREES). IV NOT ACCEPTABLE FOR NEW INSTALLATIONS OR OLD SETS, OR FOR ANY VACANT EXISTING SINGLE-PHASE, 2-WIRE 120V METER BASES; FIELD MAINTENANCE ONLY V ONLY APPLICABLE WHEN FED FROM AN OVERHEAD TRANSFORMER STATION VI. EFFECTIVE WITH SMART METER IMPLEMENTATION, FORM 16 METERS WILL ALSO REPLACE ALL FORM 14S AND 15S. VII NOT FOR NEW INSTALLATIONS. NO LONGER AN ACCEPTABLE METER USE. I

REFERENCE: a FOR MULTI-FAMILY RESIDENTIAL REQUIREMENT FOR SINGLE-PHASE METERING, SEE SG004. b SEE SG515. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/NOTES UPDATE EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG516.2 2 OF 2 METER TYPE AND SOCKET CLIP ARRANGEMENT

SCOPE: THIS STANDARD PROVIDES GENERAL INFORMATION ON STANDARD SWITCH BOARD SERVICE SECTIONS. DEFINITIONS: • ELECTRIC UTILITY SERVICE EQUIPMENT REQUIREMENTS COMMITTEE (EUSERC): EUSERC IS AN ORGANIZATION COMPRISED OF UTILITY REPRESENTATIVES FROM THE WESTERN REGION OF THE UNITED STATES WHICH WORKS TO PROMOTE THE STANDARDIZATION OF ELECTRIC SERVICE REQUIREMENTS AND THE DESIGN AND ENGINEERING OF METERING AND SERVICE REQUIREMENT. SWITCHBOARD SERVICE SECTIONS, APPROVED FOR USE IN THE AREA SERVED BY SDG&E (UTILITY), ARE GENERALLY BUILT TO THE REQUIREMENTS DEVELOPED BY EUSERC, AND ARE AVAILABLE TO THE CUSTOMER AND CONTRACTOR THROUGH ELECTRICAL WHOLESALE DISTRIBUTORS. • SWITCHBOARD SERVICE SECTION: A STANDARD SWITCHBOARD SERVICE SECTION IS A FREE-STANDING UNIT OF SERVICE EQUIPMENT WHICH CONTAINS BUSSING FOR THE TERMINATION OF SERVICE ENTRANCE OR SERVICE LATERAL CONDUCTORS, BUSSING FOR THE CONNECTION AND MOUNTING OF CURRENT TRANSFORMERS (CTS), FACTORY INSTALLED TEST-BYPASS DEVICES, METER SOCKET, AND A SERVICE MAIN DISCONNECT SWITCH OR BREAKER, AND IN MANY CASES, DISTRIBUTION FEEDER BREAKERS

OR SWITCHES. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. THE STANDARD SWITCHBOARD SERVICE SECTION IS USUALLY BUILT TO SERVE THE CUSTOMER WITH HEAVY ELECTRICAL SUPPLY NEEDS, AND IS AVAILABLE WITH SERVICE MAIN SWITCH OR BREAKER RATINGS FROM 201–4,000A. II. STANDARDS FOR SERVICE SWITCHBOARDS HAVE ALSO BEEN DEVELOPED FOR SELF-CONTAINED METERS, BOTH RESIDENTIAL AND COMMERCIAL, AND WITH EITHER STANDARD-DUTY OR HEAVY-DUTY METER SOCKETS. THESE SECTIONS OF SWITCHBOARDS ARE NORMALLY BUILT ON SPECIAL ORDER TO MEET THE NEEDS OF THE CUSTOMER'S ELECTRIC SERVICE. III. MANUFACTURER'S DRAWINGS FOR APPROVAL: a. THE MANUFACTURER OF THE SECONDARY (0–600V) ELECTRICAL EQUIPMENT RATED 1,000A AND ABOVE SHALL SUBMIT DRAWINGS ELECTRONICALLY TO SDG&E SERVICE STANDARDS FOR APPROVAL PRIOR TO FABRICATION. SEND DRAWINGS TO: DRAWINGSUBMITTALS@SDGE.COM b. THE ADDRESS OF THE JOB MUST BE SHOWN ON DRAWINGS IN ORDER TO PROCESS. NOTIFICATION WILL BE SENT TO THE SENDER WITH APPROVALS OR CORRECTIONS AS NEEDED. WHEN A PARALLEL, STAND-BY OR EMERGENCY GENERATION SYSTEM

IS EXISTING OR IS TO BE INSTALLED IN CONNECTION WITH NEW SERVICE EQUIPMENT, A ONE-LINE ELECTRICAL DIAGRAM SHOWING THE RELATIONSHIP OF THE GENERATOR WITH THE SERVICE EQUIPMENT, INCLUDING THE TRANSFER DEVICE AND ITS SEQUENCE OF OPERATION, IS TO BE SUBMITTED WITH THE SWITCHBOARD DRAWINGS. THE ELECTRICAL ONE-LINE DIAGRAM SUBMITTAL REQUIREMENT APPLIES TO ALL SYSTEMS REGARDLESS OF SIZE. c. APPROVALS ARE VALID FOR THREE YEARS. AFTER THREE YEARS, RESUBMITTAL OF SWITCHBOARD DRAWINGS DIRECTLY FROM THE MANUFACTURER WILL BE REQUIRED FOR REVIEW AND APPROVAL. d. THIS PRACTICE WILL ENSURE THE UTILITY’S REQUIREMENTS ARE MET AND THE SERVICE EQUIPMENT WILL BE ACCEPTABLE TO THE UTILITY. IV. SWITCHBOARD BUS/WIRE TAP DRAWINGS FOR APPROVAL: a. IF THERE ARE ADEQUATE FACTORY-INSTALLED EXISTING CUSTOMER SIDE MECHANICAL LUGS AVAILABLE IN THE UNDERGROUND PULL SECTION (UGPS) FOR NEW SERVICE ENTRANCE CONDUCTORS TO BE ADDED, TAP DRAWINGS ARE NOT REQUIRED. IF MECHANICAL LUGS MUST BE ADDED TO AN EXISTING BUS, OR MANUFACTURER INSTALLED WIRE CONDUCTORS

ARE TO BE TAPPED, BUS TAP DRAWINGS PREPARED BY A QUALIFIED ENGINEER ARE REQUIRED. SUBMIT DRAWINGS FOR APPROVAL PRIOR TO FABRICATION. SEND THEM ELECTRONICALLY TO: DRAWINGSUBMITTALS@SDGE.COM. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.1 1 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS GENERAL INFORMATION

NOTES (CONT’D): IV. SWITCHBOARD BUS/WIRE TAP DRAWINGS FOR APPROVAL (CONT’D): b. THE ADDRESS OF THE JOB MUST BE SHOWN ON DRAWINGS IN ORDER TO PROCESS. NOTIFICATION WILL BE SENT TO THE SENDER WITH APPROVALS OR CORRECTIONS AS NEEDED. BOTH THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) AND THE UTILITY WILL INSPECT THE BUS TAP, AND THE UTILITY MUST RECEIVE THE INSPECTION CLEARANCE FROM THE AHJ AS A CONDITION OF ENERGIZING. V. VENTILATION: ALL SWITCHBOARD SECTIONS CONTAINING UNMETERED CONDUCTORS SHALL COMPLY WITH UL 891 (8.5.3) FOR PROTECTION OF ENERGIZED PARTS. THE UTILITY’S INSPECTORS DO NOT INSPECT FOR THIS REQUIREMENT. IT IS THE EQUIPMENT MANUFACTURER'S RESPONSIBILITY TO ENSURE COMPLIANCE WITH THE UL STANDARD. a VI. SWITCHBOARD SERVICE SECTIONS OUTLINE: THE FOLLOWING INFORMATION HAS BEEN INCLUDED TO HELP YOU VISUALIZE THE APPEARANCE OF STANDARD SWITCHBOARD SERVICE SECTIONS. a. THE STANDARD SWITCHBOARD SECTIONS AS SHOWN MAY BE USED FOR SINGLE-PHASE SERVICE. THE SWITCHBOARD BUSSING ARRANGEMENT IN THE INSTRUMENT TRANSFORMER COMPARTMENT FOR SINGLE-PHASE

SERVICE CAPACITY IN THE RANGE OF 201–400A IS SHOWN ON SHEET 14. THE 6-CLIP METER SOCKET FOR A SINGLE-PHASE, 120/240V, 3-WIRE TRANSFORMER RATED METER WILL BE PROVIDED. b SEE SHEETS 3-24 FOR STANDARD SWITCHBOARD SECTION DETAILS. b. THE STANDARD SWITCHBOARD SECTIONS AS SHOWN MAY BE USED FOR THREE-PHASE SERVICE. THE SWITCHBOARD BUSSING ARRANGEMENT IN THE INSTRUMENT TRANSFORMER COMPARTMENT FOR SERVICE CAPACITY IN THE RANGE OF 201–1,000A IS SHOWN ON SHEET 15. THE SWITCHBOARD BUSSING ARRANGEMENT IN THE INSTRUMENT TRANSFORMER COMPARTMENT FOR SERVICE CAPACITY IN THE RANGE OF 1,001–3,000A IS SHOWN ON SHEETS 17–20. THE SWITCHBOARD BUSSING ARRANGEMENT IN THE INSTRUMENT TRANSFORMER COMPARTMENT FOR SERVICE CAPACITY IN THE RANGE OF 3,001–4,000A IS SHOWN ON SHEETS 21–24. THE 15-CLIP METER SOCKET IS REQUIRED FOR ALL THREE-PHASE TRANSFORMER RATED INSTALLATIONS. b FOR STANDARD SWITCHBOARD SECTION DETAILS, SEE SHEETS 6-8 AND 11-24. c. MULTIPLE METERING SWITCHBOARDS FOR RESIDENTIAL SERVICE MAY USE EITHER STANDARD-DUTY METER SOCKETS, WITH

NOMINAL CAPACITY OF 125A, OR HEAVY-DUTY METER SOCKETS, WITH NOMINAL CAPACITY OF 200A. WHEN MOUNTED IN SWITCHBOARDS, PREFERABLY ONE BUT NOT MORE THAN TWO METER SOCKETS MAY BE MOUNTED ON ANY SINGLE FRONT PANEL. WHEN THE INSTALLATION IS COMPLETE, ALL METER PANELS MUST BE REMOVABLE FOR INSPECTION OF WIRING. PANEL DESIGN SHALL PERMIT CONVENIENT REPLACEMENT OF ANY METER SOCKET WITHOUT INTERRUPTION OF SERVICE TO OTHER METERS. d. MULTIPLE METER SWITCHBOARDS FOR COMMERCIAL SERVICE, EITHER FOR SINGLE OR MULTIPLE METERING, MUST HAVE FACTORY-INSTALLED TEST-BYPASS FACILITIES. REFERENCE: a SEE UL 891 (8.5.3). b SEE SG516. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.2

2 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS GENERAL INFORMATION

SCOPE: THIS STANDARD PROVIDES INFORMATION ON 0-600V STANDARD SWITCHBOARD SERVICE SECTIONS. 10 0 10” MIN. 1 2 1’-3” CL 3 7 6 1’-3” 8 9 4 5’-7 1/2” MIN. 6’-0 1/2” MAX. B 3’-9” MIN. 4’-2” MAX. 5 FIGURE 1 SEE TABLE 1 10 0 1 10” MIN. C 6 1’-3” L 3 7 12 11 0 1’-3” 0 8 9 6 5’-7 1/2” MIN. 6’-0 1/2” MAX. B 3’-9” MIN. 4’-2” MAX. 5 FIGURE 2 XI SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.3 3 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS 0-600V

10 14 10” MIN. 4 1’-3” C L 7 9 2 1’-3” 8 6 13 5’-7 1/2” MIN. 6’-0 1/2” MAX. B 4’-2” MAX. FIGURE 3 A XII XIII SEE TABLE 1 TABLE 1 STANDARD SWITCHBOARD SERVICE SECTION, 0-600V DESCRIPTION LIST ITEM DESCRIPTION 1 TEST SWITCH CUTOUT AND REMOVABLE PLATE 2 HANDLE 3 METER PANEL, SEE SHEET 10 4 STUDS AND WING NUTS OR SEALING SCREWS 5 LOCKABLE MAIN SWITCH OR BREAKER 6 HINGE 7 INSTRUMENT TRANSFORMER COMPARTMENT 8 BARRIER 9 BLANK HINGED PANEL 10 OPTIONAL BLANK PANEL (SEALABLE) 11 FILLER PANEL 12 HINGED 13 LOCKABLE MAIN 14 SEPARATE REMOVABLE PLATE, NOT SEALABLE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.4 4 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS 0-600V

INSTALLATION: A FIGURE 3 SHOWS A SEPARATE BARRIER CREATING A LOAD WIREWAY AT THE UPPER RIGHT SIDE OF THE SWITCHBOARD IN ORDER TO ROUTE THE LOAD CONDUCTORS OUT THE TOP. LOAD CONDUCTORS MAY NOT BE ROUTED THROUGH THE INSTRUMENT TRANSFORMER COMPARTMENT IN ORDER TO EXIT THE SWITCHBOARD. B PLACING A FREE-STANDING METER PANEL ON A HOUSEKEEPING PAD RAISES THE METER HEIGHTS. GENERALLY, EQUIPMENT MANUFACTURERS MAY ALLOW 2 1/2 INCHES FOR THIS. HOUSEKEEPING PADS INSTALLED HIGHER THAN 2 1/2 INCHES MAY RAISE THE CENTERLINE OF THE METER ON THE PANEL ABOVE 6 FEET 3 INCHES. IT IS THE CUSTOMER’S RESPONSIBILITY TO ENSURE THE CENTERLINE OF METER DOES NOT EXCEED 6 FEET 3 INCHES HIGH, MEASURED FROM STANDING SURFACE OF THE WORKING SPACE. BILL OF MATERIALS: NONE NOTES: I. THE WIDTH AND DEPTH ARE DETERMINED BY TYPE AND AMPERAGE OF SERVICE. II. FOR OUTDOOR/RAINTIGHT (NEMA 3R) ENCLOSURES, SEE SHEETS 6-8. III. INSTRUMENT TRANSFORMER COMPARTMENTS SHALL BE BUSSED WITH RECTANGULAR BUS BAR. IV. THE GROUNDING CONNECTION SHALL BE MADE IN THE MAIN SWITCH OR BREAKER COMPARTMENT. V.

METER PANELS SHALL BE CONSTRUCTED OF 12-GAUGE STEEL (MINIMUM) AND SHALL BE REVERSIBLE, SEALABLE, HINGED AND INTERCHANGEABLE. VI. THE METER PANEL SHALL BE MOUNTED IN THE UPPER POSITION AND HAVE A HANDLE ATTACHED AT THE UNSUPPORTED END. VII. HINGES SHALL BE READILY INTERCHANGEABLE, RIGHT OR LEFT, ON THE JOB SITE. VIII. WIDTH OF METER PANELS MAY IN SOME CASES REQUIRE THE SERVICE SECTION TO BE WIDER THAN THE MINIMUM ALLOWABLE WIDTH OF TRANSFORMER COMPARTMENT. FOR MINIMUM DIMENSIONS OF INSTRUMENT TRANSFORMER COMPARTMENTS, SEE SHEET 2, FOR PAGE REFERENCES. IX. ALL PANELS AND COVERS SHALL BE SEALABLE. XI FILLER PANELS SHALL BE USED WHERE SWITCHBOARD WIDTH EXCEEDS MAXIMUM ALLOWABLE METER PANEL WIDTH. XII SEE FIGURE 1 FOR ADDITIONAL DIMENSIONS. XIII ACCESS TO CUSTOMER’S DISTRIBUTION WIREWAYS SHALL NOT REQUIRE OPENING OR REMOVING SEALABLE PANELS. REFERENCE: a. FOR WORKING SPACE AND CLEARANCE REQUIREMENTS, 0–600V, SEE SG504. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.5 5 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS 0-600V

SCOPE: THIS STANDARD SHOWS THE CONSTRUCTION FOR AN OUTDOOR RAINTIGHT UNIT WITH ENCLOSED METER PANELS AND MAIN DISCONNECT SWITCH OR BREAKER. II b VI IV 7 7 6 11” XI MIN. 4 C III a B IV EXAMPLE 1 EXAMPLE 2 FIGURE 1 TOP VIEW SEE TABLE 1 2 11” II MIN. V C 10” L 10” 10” MIN. MIN. CL 4” MIN. XI 3 I A VII 1 VIII 10” MIN. 1 A VII 11” MIN. 5 12” MAX. 2 IX IX B 2’-11” MIN. 2’-11” MIN. III C a EXAMPLE 1 EXAMPLE 2 FIGURE 1 FIGURE 1 FRONT VIEW SIDE VIEW SEE TABLE 1 SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.6 6 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS 0-600V, OUTDOOR/RAINTIGHT ENCLOSURE (NEMA 3R)

TABLE 1 STANDARD SWITCHBOARD SERVICE STATION, NEMA 3R, DESCRIPTION LIST ITEM DESCRIPTION 1 METER PANEL HINGES 2 ENCLOSURE DOOR HINGES 3 FACE OF PANEL 4 CLEAR AND LEVEL WORKING SPACE 5 HOUSEKEEPING PAD 6 PULL SECTION OR WIREWAY 7 WIREWAY INSTALLATION: A HINGED METER PANELS SHALL BE CAPABLE OF BEING OPENED 90 DEGREES WITH METER AND TEST FACILITIES IN PLACE. THE HINGES SHALL BE READILY INTERCHANGEABLE RIGHT OR LEFT ON THE JOB SIGHT. FOR OTHER DETAILS, SEE SHEETS 9 AND 10. ALL METER PANELS MUST BE HINGED FROM THE TEST SWITCH SIDE. B THE ENCLOSURE DOOR SHALL BE HINGED OPPOSITE FROM THE METER PANEL DOOR WHEN NECESSARY TO ALLOW 90 DEGREE OPENING OF THE METER PANEL DOOR WITH UTILITY EQUIPMENT IN PLACE. WHEN ENCLOSURE DOOR(S) IS LOCKED, A DOUBLE HASP IS REQUIRED. THE ENCLOSURE DOOR(S) SHALL BE DESIGNED TO SECURE IN THE OPEN POSITION AT 90 DEGREES OR MORE. A FULL HEIGHT HINGED DOOR WITH A THREE-POINT LOCKING MECHANISM AND PROVISION FOR A UTILITY FURNISHED PADLOCK IS REQUIRED. C WHEN OUTDOOR RAINTIGHT SERVICE EQUIPMENT IS INSTALLED ON A "HOUSEKEEPING PAD", THAT PAD MUST BE LEVEL AND

EXTEND A MINIMUM OF 3 FEET MEASURED FROM THE FACE OF THE METER PANEL, OR A MINIMUM OF 6 FEET WHEN 5-INCH CONDUIT IS REQUIRED. SEE FIGURE 1 ON SHEET 6. IF THE ENCLOSURE DOORS ARE WIDER THAN 3 FEET, THE HOUSEKEEPING PAD SHALL EXTEND 1-INCH BEYOND THE OUTER EDGE OF THE EQUIPMENT DOORS WHEN OPENED AT 90 DEGREES. BILL OF MATERIALS: NONE NOTES: I THE METER HEIGHTS SPECIFIED ON SG504 APPLY IN FULL SWITCHBOARD HEIGHT METER ENCLOSURES. a II WHEN USED AS UNDERGROUND PULL SECTION III 3 FEET MINIMUM, OR 6 FEET MINIMUM WHEN 5-INCH CONDUIT IS REQUIRED. IV HINGED DOORS, WHEN OPENED, MAY NOT BLOCK THE 24-INCH MINIMUM EXIT ROUTE. V THE WIDTH AND DEPTH ARE DETERMINED BY TYPE AND AMPACITY OF SERVICE. VI FOR METER SOCKET AND TEST SWITCH PANEL LAYOUT, SEE SHEETS 9 AND 10. FOR INSTRUMENT TRANSFORMER COMPARTMENT INFORMATION, SEE SHEETS 14 TO 24. VII IF PANEL IS HINGED AT THE SIDE WALL OF THE NEMA 3R RECESS, THE EDGE OF THE TEST SWITCH SLOTS SHALL BE 1-INCH PLUS THE DEPTH OF THE RECESS FROM THE HINGED SIDE.

VIII WHERE AN ADJACENT OBSTRUCTION EXTENDS 11 INCHES OR MORE PERPENDICULAR FROM THE FACE OF THE METER SOCKET, A 10-INCH MINIMUM DIMENSION TO CENTERLINE OF METER IS REQUIRED. THIS ALSO APPLIES TO MULTI-METER INSTALLATIONS. c © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.7 7 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS 0-600V, OUTDOOR/RAINTIGHT ENCLOSURE (NEMA 3R)

NOTES (CONT’D): IX ALL PANELS AND COVERS SHALL BE SEALABLE. XI THE 11-INCH CLEARANCE FROM METER PANEL TO INSIDE OF DOOR IS REQUIRED FOR ALL TYPES OF METERS. REFERENCE: a FOR WORKING SPACE AND CLEARANCE REQUIREMENTS, 0–600V, SEE SG504. b FOR TERMINATING ENCLOSURE UGPS REQUIREMENTS, SEE SG700. c FOR METER CABINET REQUIREMENTS, SEE SG509. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.8 8 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS 0-600V, OUTDOOR/RAINTIGHT ENCLOSURE (NEMA 3R)

SCOPE: THIS STANDARD PROVIDES INFORMATION ON METER SOCKET AND TEST SWITCH PANEL LAYOUT FOR 0-600V STANDARD SWITCHBOARD SERVICE SECTIONS. L L/3 1 L/3 2 1’-9 1/2” MIN. 3’-0” MAX. 4 3 I DETAIL 1 IX 5 3/4” 9” 3/4” 2” MIN. 4 1/2” MIN. 9” MIN. 1’-3” 1 1/4” 2 1/16” O.C. 4 1/2” MIN. 1” 8 1/2” 1” 10 1/2” IX 6 5 4 FIGURE 1 SEE TABLE 1 1/4” DRILL 10-32 TAP 2 1/2” 3 1/4” 1/4” DRILL 10-32 TAP 6 1/2” 8 1/2” 10 1/2” DETAIL 1 REMOVABLE PLATE TABLE 1 METER SOCKET AND TEST SWITCH PANEL DESCRIPTION LIST ITEM DESCRIPTION 1 5/16” DRILL, 4 HOLES 2 2 EACH, UPPER AND LOWER FLANGES 3 HANDLE AREA 4 HINGE 5 10-32 TAP, 2 HOLES 6 10-32 TAP, 4 HOLES © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.9

9 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS 0-600V METER SOCKET AND TEST SWITCH PANEL LAYOUT

INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I ”BREAK EDGES” FRONT AND BACK TO REMOVE ALL BURRS. II. THE SWITCHBOARD MANUFACTURER SHALL DRILL, TAP AND SLOT THE PANEL AS SHOWN FOR SECONDARY TEST SWITCHES AND SHALL FURNISH AND INSTALL SOCKETS COMPLETE WITH SEALING RINGS. III. METER PANELS SHALL BE CONSTRUCTED OF 12-GAUGE STEEL (MINIMUM) AND SHALL BE HINGED AT THE TEST SWITCH SIDE BY THE MANUFACTURER. METER PANELS SHALL BE SEALABLE, AND MUST BE REVERSIBLE AND INTERCHANGEABLE IF FIELD CONDITIONS REQUIRE SUCH CHANGE. IV. METER PANELS SHALL HAVE A HANDLE ATTACHED AT THE UNSUPPORTED END. V. HINGES MUST SUPPORT A 25-POUND LOAD APPLIED AT THE UNSUPPORTED END WITH 1/8 INCH MAXIMUM SAG WHEN OPEN. VI. HINGES SHALL BE READILY INTERCHANGEABLE, RIGHT OR LEFT, ON THE JOB SITE. VII. REMOVABLE PLATE SHALL BE SECURED TO REAR OF PANEL BY SCREWS OF SUCH LENGTH SO AS NOT TO PROTRUDE THROUGH FACE OF PANEL. VIII.METER PANELS SHALL BE CAPABLE OF BEING OPENED 90 DEGREES WITH METER AND TEST FACILITIES IN PLACE. IX ALL SECURING SCREWS AND SEALING SCREWS ON PANELS SHALL BE CAPTIVE.

STUDS AND WING NUTS SHALL BE SEALABLE WHEN USED. REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.10 10 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS 0-600V METER SOCKET AND TEST SWITCH PANEL LAYOUT

SCOPE: THIS STANDARD PROVIDES INFORMATION ON 0-600V, SINGLE-PHASE, 3-WIRE AND THREE-PHASE, 4-WIRE, STANDARD SWITCHBOARD SERVICE SECTIONS FOR SELF-CONTAINED METERING WITH 200A MAXIMUM METER SOCKET CAPACITY. 6” MIN. 1’-0” MIN. 6” MIN. 8 1/2” MIN. A 1 E 10” MIN. c OPENING 1” MIN. 1” MIN. 1” MIN. STANDING G 2 11” MIN. A 1 1 1/2” MIN. 2 G SURFACE OPENING 1’-2” MIN. 2’-0” MIN. FIGURE 1 FIGURE 2 SEE TABLE 1 SEE TABLE 1 3 3” MIN. 4 2 I 3” MIN. 6” MAX. FIGURE 3 SEE TABLE 1 TABLE 1 SELF-CONTAINED METERING DESCRIPTION LIST ITEM DESCRIPTION 1 TEST-BYPASS BLOCK WITH 4 RIGID INSULATING BARRIERS 2 ISOLATING BARRIER 3 SOCKET SUPPORT 4 TEST BYPASS SUPPORT © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET

STANDARD SWITCHBOARD SERVICE SECTIONS SG517.11 11 OF 24 0-600V FOR SELF-CONTAINED METERING, 200A MAXIMUM METER SOCKET CAPACITY SINGLE-PHASE, 3-WIRE AND THREE-PHASE, 4-WIRE SERVICES

INSTALLATION: A TEST-BYPASS FACILITIES WITH RIGID INSULATING BARRIERS SHALL BE FURNISHED, INSTALLED, AND WIRED OR BUSSED TO THE METER SOCKET BY THE MANUFACTURER. BLOCKS AND BARRIERS SHALL CONFORM TO SG513 REQUIREMENTS WITH PHYSICAL ARRANGEMENT CONFORMING TO SG514. CONNECTION SEQUENCE IS LINE-LOAD, LINE-LOAD, LINE-LOAD FROM LEFT TO RIGHT. a b B. SEPARATE LINE AND LOAD CONDUCTORS SHALL BE INSTALLED AND CONNECTED BY THE CONTRACTOR OR MANUFACTURER FOR EACH TEST-BYPASS POSITION. C. METERED CONDUCTORS SHALL NOT PASS THROUGH ADJACENT METERING COMPARTMENTS EXCEPT IN CLOSED WIREWAYS. TO ENSURE PROPER IDENTIFICATION OF CABLES IN FACTORY CABLED EQUIPMENT, METERED CABLES (EXCEPT IN THE TEST-BYPASS AREA), SHALL BE EITHER PHYSICALLY BARRIERED OR BUNDLED SO AS TO SEPARATE THEM FROM UNMETERED CABLE OR PERMANENTLY MARKED AND ISOLATED FROM UNMETERED CABLES. PHYSICAL BARRIERS WILL NOT BE REQUIRED IF THE UNMETERED CONDUCTORS ARE BUS. D. METER PANELS SHALL BE REMOVABLE, BUT SHALL BE NON-REMOVABLE WHEN THE METER IS IN PLACE. THE METER SOCKET SHALL

BE SUPPORTED INDEPENDENT OF, AND ATTACHED TO, THE METER PANEL. WHEN MOUNTED IN SWITCHBOARDS, PREFERABLY ONE BUT NOT MORE THAN TWO SOCKETS MAY BE MOUNTED ON ANY SINGLE FRONT PANEL. E TEST-BYPASS COVER PANELS SHALL BE SEALABLE AND FITTED WITH A LIFTING HANDLE. ALL PANELS EXCEEDING 16 INCHES IN WIDTH SHALL REQUIRE TWO LIFTING HANDLES. F. WHEN A NEUTRAL IS REQUIRED FOR METERING OR TESTING, AN INSULATED NEUTRAL TERMINAL SHALL BE PROVIDED BEHIND EACH TEST-BYPASS COVER PANEL. THE TERMINAL SHALL BE READILY ACCESSIBLE WHEN THE COVER PANEL IS REMOVED AND SHALL BE INDIVIDUALLY CONNECTED TO THE NEUTRAL BUS WITH A MINIMUM NO. 12 COPPER WIRE. G FACTORY-INSTALLED FULL-WIDTH INSULATING BARRIERS WITH A MAXIMUM DEFLECTION OF 1/2 INCH FROM AN APPLIED FORCE OF 25 POUNDS DOWNWARD, SHALL BE LOCATED AT THE BOTTOM OF EACH TEST-BYPASS COMPARTMENT. IN ADDITION, A FULL WIDTH AND DEPTH ISOLATING BARRIER SHALL BE LOCATED BELOW THE BOTTOM TEST-BYPASS COMPARTMENTS AND ABOVE THE LOAD TERMINALS OF THE METER DISCONNECT DEVICES. IF A FACTORY-INSTALLED REAR-LOAD WIREWAY IS PROVIDED, THE

ISOLATING BARRIER SHALL EXTEND BACK TO THAT WIREWAY. VENTILATION OPENINGS, WHEN PROVIDED, SHALL NOT EXCEED A MAXIMUM DIAMETER OF 3/8 INCH. A SLOT IN THE ISOLATING BARRIER PROVIDED FOR THE LOAD CONDUCTORS SUPPLIED FROM THE TEST-BYPASS BLOCKS SHALL BE A MAXIMUM OF 1 1/2 INCHES IN DEPTH AND MAY EXTEND TO THE WIDTH OF THE METER DISCONNECT DEVICES. THE SLOT MAY NOT BE LOCATED IN THE FRONT 6 INCHES OF THE TEST BY-PASS COMPARTMENT INSULATING BARRIER. H. ENCLOSURES MUST ALLOW A MINIMUM OF 11 INCHES TO A MAXIMUM OF 12 INCHES FROM THE FACE OF THE METER PANEL TO THE INSIDE OF THE DOOR, AND 10 INCHES MEASURED FROM THE VERTICAL CENTERLINE OF THE SOCKET TO ANY SIDE OBSTRUCTION INCLUDING THE DOOR-JAMB OR FLANGE. THIS 10-INCH SIDE CLEARANCE EXTENDS A MINIMUM OF 3 FEET FROM THE FACE OF THE METER PANEL. SEE SHEETS 6-8 FOR OUTDOOR/RAINTIGHT ENCLOSURE DETAILS. d BILL OF MATERIALS: NONE NOTES: I FIELD INSTALLED CONDUCTORS MAY REQUIRE A GREATER DIMENSION BETWEEN TEST-BYPASS BLOCKS AND BARRIER. II. MINIMUM ACCESS OPENING TO TEST-BYPASS BLOCKS SHALL BE 11" X 10" FOR FIGURE 1 AND 21 1/2" X 10" FOR FIGURE 2.

III. RIGID INSULATING BARRIERS SHALL BE INSTALLED AS SHOWN. IV. UPPER TEST CONNECTOR STUD SHALL BE A MINIMUM OF 3 INCHES BELOW UPPER PANEL. V. FOR THREE-PHASE, 4-WIRE, CONNECT 7TH JAW TO NEUTRAL TERMINAL WITH A WHITE NO. 12 COPPER WIRE. VI. FOR THREE-PHASE, 4-WIRE, DELTA, IDENTIFY RIGHT HAND TEST-BYPASS BLOCK (2 POLES) AS POWER LEG, ORANGE IN COLOR (C PHASE). VII. FOR SINGLE-PHASE, 3-WIRE, OMIT CENTER TEST-BYPASS BLOCK. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET STANDARD SWITCHBOARD SERVICE SECTIONS SG517.12 12 OF 24 0-600V FOR SELF-CONTAINED METERING, 200A MAXIMUM METER SOCKET CAPACITY SINGLE-PHASE, 3-WIRE AND THREE-PHASE, 4-WIRE SERVICES

NOTES (CONT’D): VIII. FOR SINGLE-PHASE, 3-WIRE, 208Y/120V, OMIT CENTER TEST-BYPASS BLOCK. CONNECT FIFTH JAW TO NEUTRAL TERMINAL WITH A WHITE NO. 12 COPPER WIRE. IX. ALL SECURING SCREWS SHALL BE CAPTIVE. ALL PANELS AND COVERS SHALL BE SEALABLE. XI. EACH LINE AND LOAD POSITION SHALL BE CLEARLY IDENTIFIED BY 3/4-INCH MINIMUM BLOCK LETTER LABELING. REFERENCE: a SEE SG513. b SEE SG514. c FOR METER MOUNTING HEIGHTS, SEE SG504. d FOR METER CABINET DETAILS, SEE SG509. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET STANDARD SWITCHBOARD SERVICE SECTIONS SG517.13 13 OF 24 0-600V FOR SELF-CONTAINED METERING, 200A MAXIMUM METER SOCKET CAPACITY SINGLE-PHASE, 3-WIRE AND THREE-PHASE, 4-WIRE SERVICES

SCOPE: THIS STANDARD PROVIDES INFORMATION ON 0-600V, 201-1,000A, INSTRUMENT TRANSFORMER COMPARTMENTS ON STANDARD SWITCHBOARD SERVICE SECTIONS. 1’-9 1/2” MIN. 3/4” MAX. IV 1’-4 1/2” MIN. 2 1/2” MAX. 2 V 1 1” 3” 1” 8 MIN. 1” DETAIL 1 3 1 3/4” 4 3/4” 2’-6” 1 3/8” 5 5/8” IV 5” 6 7/8” 5/8” 1’-6 3/8” MIN 5” MIN. IV DETAIL 1 . 1 3/8” VII 1 3/4” 4 6 3/4” 27/32” MIN. 3” 4 VII 6 9” 5” MIN. 7 6 1/2” MIN. 8” MAX. FIGURE 1 201-400A SINGLE-PHASE SERVICE SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.14 14 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS 0-600V INSTRUMENT TRANSFORMER COMPARTMENT

1’-4” MIN. 3/4” MAX. IV 1’-4 1/2” MIN. 2 1/2” MAX. 2 1 1” 3” 1” MIN. 8 1” DETAIL 1 1 3/4” 2’-6” 3 4 3/4” 1 3/8” 5 4 1/2” 1’-6 3/8” MIN. 5/8” 9 XI 6 7/8” IV 5” MIN. 5/8” 5” MIN. IV 1 3/8” 1 3/4” DETAIL 1 6 3/4” 27/32” MIN. 3” 4 VII 6 9” 9” 10 7 6 1/2” MIN. 0 8” MAX. 5” MIN. FIGURE 2 201-1,000A THREE-PHASE, 3 AND 4-WIRE SERVICES VIII IX SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.15 15 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS 0-600V INSTRUMENT TRANSFORMER COMPARTMENT

TABLE 1 INSTRUMENT TRANSFORMER COMPARTMENT, 200-1,000A, DESCRIPTION LIST XII 11 ITEM DESCRIPTION 1 BUS SUPPORT BAR 2 ANCHORED TO PREVENT TURNING 3 9/16” Ø. DRILL 3 HOLES PER BUS 4 BARRIER 1” MIN. 5 COMPARTMENT INSTRUMENT TRANSFORMER 1 1/2” MAX. TYPICAL- 6 BOLTS 6 TEST TRANSFORMER SUPPORT BAR 7 10-32 SCREW AND WASHER, TYPICAL DETAIL 1 8 CENTERLINE BOLT 9 REMOVABLE LINK INSTALLATION: NONE 10 ALTERNATE LOCATION OF NEUTRAL BUS BILL OF MATERIALS: NONE 11 BOLT, STEEL, 1/2” (WITH SPRING WASHER AND NUT) NOTES: I. BUS ARRANGEMENT AND SUPPORTS ARE REQUIRED AS SHOWN IN FIGURES 1 AND 2, EXCEPT THAT NEUTRAL MAY BE LOCATED ON THE SIDE WALL OR AT EITHER SIDE. II. COMPARTMENT SHALL BE ON THE SUPPLY SIDE OF THE MAIN SWITCH OR BREAKER. III. DIRECTION OF FEED MAY BE FROM TOP OR BOTTOM. NO OTHER CONDUCTORS SHALL PASS THROUGH THIS COMPARTMENT. IV RETURN FLANGES FOR LOWER AND UPPER METER PANEL SUPPORT SHALL NOT PROJECT MORE THAN 3/4 INCH UP OR DOWN FROM ADJACENT SWITCHBOARD PANELS. V WHEN A LAMINATED BUS IS USED, THERE SHALL BE NO SPACE BETWEEN LAMINATIONS IN THE COMPARTMENT. VI.

BUS DIMENSIONS: MAXIMUM – 3/4” X 2”; MINIMUM – 1/4” X 2”. VII THE BARRIER SHALL BE OF INSULATING MATERIAL AND A HAVE MINIMUM OF 24 VENT HOLES OF 3/8-INCH DIAMETER. VIII THE DIRECTION OF FEED MAY BE FROM THE TOP OR BOTTOM. NO OTHER CONDUCTORS SHALL PASS THROUGH THIS COMPARTMENT. A NEUTRAL BUS BAR EXTENSION SHALL BE PROVIDED IN THE INSTRUMENT TRANSFORMER COMPARTMENT ABOVE THE LOWER CT BUS SUPPORT WHEN THE SERVICE SECTION PHASE BUSSES ARE SUPPLIED FROM HORIZONTAL CROSS BUSSING. IX THE POWER LEG (HIGH LEG) FOR A FOUR-WIRE DELTA SERVICE SHALL BE IDENTIFIED BY AN OUTER FINISH THAT IS ORANGE IN COLOR OR BY TAGGING OR BY OTHER EFFECTIVE MEANS ACCEPTABLE TO THE UTILITY AND THE AHJ ON THE RIGHT OF C-PHASE. XI A REMOVABLE LINK SHALL BE INSTALLED IN THE RIGHT SIDE PHASE BUS. XII BUS UNIT SHALL BE PROVIDED WITH A FIXED STUD/BOLT AS SHOWN FOR MOUNTING THE CURRENT TRANSFORMERS. a. EACH BOLT SHALL CONSIST OF A ½-INCH STEEL BOLT AND SHALL BE PROVIDED WITH A SPRING WASHER AND A NUT. THE SPRING WASHER MAY BE EITHER A CONE-TYPE (BELLEVILLE) WASHER OR A SPLIT-RING WASHER AND FLAT WASHER. ALL PARTS

SHALL BE PLATED TO PREVENT CORROSION. b. EACH BOLT SHALL BE SECURED IN PLACE. “SECURED IN PLACE” SHALL MEAN THAT THE STUD WILL NOT TURN, BACK-OUT, OR LOOSEN IN ANY MANNER WHEN TIGHTENING OR LOOSENING THE ASSOCIATED NUTS (INCLUDING CROSS-THREADED SITUATIONS). REFERENCE: a. WHEN MAIN SWITCH IS OVER 400A AND FOR ALL UNDERGROUND SERVICES, SEE SG708 AND CONSULT THE UTILITY’S PLANNER. b. FOR CONTACT INFORMATION, SEE SG021. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG517.16 16 OF 24 STANDARD SWITCHBOARD SERVICE SECTIONS 0-600V INSTRUMENT TRANSFORMER COMPARTMENT

SCOPE: THIS STANDARD PROVIDES INFORMATION ON 0-600V, 1,001-3,000A, INSTRUMENT TRANSFORMER COMPARTMENTS ON STANDARD SWITCHBOARD SERVICE SECTIONS. 5” MIN. 5” MIN. 1 5” MIN. TO ANY 5” MIN. OBSTRUCTION 7” TO 11” FIGURE 1 TOP VIEW SEE TABLE 1 4 2” 1” 7 1/2” 2 13/16” 1’-3” B 3 2’-0” 5 1’-2 1/2” MAX. 2’-6” 1” OPENING 2 13/16” 1’-3” IV 10” 2 MIN. 7” 8 2” MIN. 7 6 XI 7 5” MIN. 11 1/2” 11 1/2” 5” MIN. FIGURE 1 FIGURE 1 SIDE VIEW FRONT VIEW SEE TABLE 1 SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET STANDARD SWITCHBOARD SERVICE SECTIONS SG517.17 17 OF 24 0-600V INSTRUMENT TRANSFORMER COMPARTMENT 1,001-3,000A THREE-PHASE, 3 AND 4-WIRE SERVICES

TABLE 1 INSTRUMENT TRANSFORMER COMPARTMENT, 1,001-3,000A, DESCRIPTION LIST ITEM DESCRIPTION 1 BUS SUPPORT BAR 2 10-32 TAP 3 BUS SUPPORTS 4 10-32 SCREW AND WASHER 5 REMOVABLE SECTION B AND C.T. SUPPORT 6 VENTED BARRIER 7 TEST TRANSFORMER SUPPORT BAR 8 NEUTRAL INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. THE BUS ANCHORAGE SHALL BE SUCH THAT BUSSES WILL REMAIN IN POSITION WHEN REMOVABLE SECTION “B” IS OUT. II. THE DIRECTION OF FEED MAY BE FROM THE TOP OR BOTTOM. NO OTHER CONDUCTORS SHALL PASS THROUGH THIS COMPARTMENT. III. THE INSTRUMENT TRANSFORMER COMPARTMENT SHALL BE ON THE SUPPLY SIDE OF THE MAIN SWITCH OR BREAKER. IV ROUND BUS CORNERS AS NECESSARY TO PREVENT DAMAGE TO INSULATION. BUS INSULATION TO BE ADEQUATE FOR THE VOLTAGE INVOLVED. V. FOR UNDERGROUND SERVICES INSTALLED BY THE UTILITY, THE BUSSES SHALL EXTEND INTO THE UGPS. CONSULT THE UTILITY’S PLANNER. a b VI. THE MAXIMUM PERMISSIBLE BUS UNIT SHALL CONSIST OF FOUR 1/4" X 4" BARS SPACED 1/4 INCH. VII. THE BARRIER SHOULD NOT BE LESS THAN 45 INCHES AND SHALL NOT BE MORE THAN 50 INCHES ABOVE THE STANDING SURFACE.

VIII.CLEARANCE TO THE SIDE OF THE COMPARTMENT SHALL BE INCREASED BY THE AMOUNT BY WHICH THE CORNER ANGLE EXCEEDS 1 INCH. IX. RETURN FLANGES FOR LOWER AND UPPER METER PANEL SUPPORT SHALL NOT PROJECT MORE THAN 3/4 INCH UP OR DOWN FROM ADJACENT SWITCHBOARD PANELS. XI THE BARRIER SHALL BE OF INSULATING MATERIAL AND A HAVE MINIMUM OF 24 VENT HOLES OF 3/8 INCH DIAMETER. XII. ALL BUS SUPPORTS SHALL BE MOUNTED BEHIND THE FACE OF THE BUS. REFERENCE: a SEE SG708. b FOR CONTACT INFORMATION, SEE SG021. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET STANDARD SWITCHBOARD SERVICE SECTIONS SG517.18 18 OF 24 0-600V INSTRUMENT TRANSFORMER COMPARTMENT 1,001-3,000A THREE-PHASE, 3 AND 4-WIRE SERVICES

SCOPE: THIS STANDARD PROVIDES INFORMATION ON 1,001-3,000A REMOVABLE LINK AND CURRENT-TRANSFORMER SUPPORTS FOR STANDARD SWITCHBOARD SERVICE SECTIONS. C L C DETAIL 3 L C 2X 9/16” Ø L NO. OF LINKS AS 1’-2 1/2” REQUIRED 8 7/8” 11 5/8” 1 1/8” 11 5/8” 1 1/8” 1 3/8” 5” II 1 7/16” 2X 9/16” SLOT I 4” 2 DETAIL 1 3 FIGURE 2 DETAIL 1 DRILLING AND SPACING OF BUS 1/4-INCH X 4-INCH LINK IV 4 1 DETAIL 2 8 1/4” C L 3/8” 3/8” 3 3/4” 9/32” RADIUS FIGURE 1 3” REMOVABLE LINK ASSEMBLY 1” 1” FURNISHED BY MANUFACTURER 3 3/8” 3/4” SEE TABLE 1 TOP VIEW 9/16” 3/16” MIN. 8 1/4” DETAIL 3 1 5/8” 7/8” 2X 5/16” Ø 7/8” 5/8” FRONT VIEW SIDE VIEW DETAIL 2 INSULATED SUPPORT FOR CURRENT TRANSFORMER III © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET STANDARD SWITCHBOARD SERVICE SECTIONS SG517.19 19 OF 24 0-600V, 1,001-3,000A REMOVABLE LINK AND CURRENT XFMR SUPPORT FOR INSTRUMENT XFMR COMPARTMENTS WITH 4-INCH BUS

TABLE 1 REMOVABLE LINK AND CT SUPPORT DESCRIPTION LIST ITEM DESCRIPTION 1 INSULATED TRANSFORMER SUPPORT 2 LINK 3 WINDOW TYPE CURRENT TRANSFORMER 4 1/4” X 20 CAPSCREW INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I THE MANUFACTURER SHALL SECURE THE REMOVABLE BUS LINK TO THE UPPER AND LOWER CT BUS UNITS USING 1/2-INCH HEX- HEAD STEEL BOLTS, NUTS (AS SHOWN) WITH A SPRING WASHER AND A NUT. THE SPRING WASHER MAY BE EITHER A CONE-TYPE (BELLEVILLE) OR A SPLIT-RING WASHER WITH A FLAT WASHER. BOLTS SHALL BE GRADE 5 (MINIMUM), AND LONG ENOUGH TO EXTEND A MINIMUM OF 1/2 INCH BEYOND THE NUT. WASHERS (BELLEVILLE OR FLAT) SHALL BE 2 1/4 INCHES (MINIMUM). II THE DRILL AND TAP TWO HOLES AS SHOWN ON THE OUTER UNITS FOR 1/4-INCH X 20 CAPSCREWS. III MATERIAL: INSULATING, NON-TRACKING IV SAME MATERIAL AS BUS REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E

A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET STANDARD SWITCHBOARD SERVICE SECTIONS SG517.20 20 OF 24 0-600V, 1,001-3,000A REMOVABLE LINK AND CURRENT XFMR SUPPORT FOR INSTRUMENT XFMR COMPARTMENTS WITH 4-INCH BUS

SCOPE: THIS STANDARD PROVIDES INFORMATION ON 0-600V, 3,001-4,000A, INSTRUMENT TRANSFORMER COMPARTMENTS ON STANDARD SWITCHBOARD SERVICE SECTIONS. TABLE 1 MAXIMUM NUMBER OF BUS BARS XII BAR SIZE SPACED QUANTITY 1 (IN) (IN) 8” MIN. 8” MIN. 4 1/4 X 4 1/4 6 1/4 X 5 1/4 4 3/8 X 5 3/8 8” MIN. TO ANY 8” MIN. OBSTRUCTION 5 3/8 X 5 1/4 7” TO 11” FIGURE 1 TOP VIEW SEE TABLE 2 4 2” 1” 7 1/2” 2 13/16” 1’-3” B 3 2’-0” 1’-2 1/2” MAX. 6 2’-6” 1” OPENING 2 13/16” 2 1’-3” 10” 9 MIN. IV 7” 5 2” MIN. 8 7 XI 8 8” MIN. 1’-2 1/2” 1’-2 1/2” 8” MIN. FIGURE 1 FIGURE 1 SIDE VIEW FRONT VIEW SEE TABLE 2 SEE TABLE 2 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET STANDARD SWITCHBOARD SERVICE SECTIONS SG517.21 21 OF 24

0-600V INSTRUMENT TRANSFORMER COMPARTMENT 3,001-4,000A, THREE-PHASE, 3 AND 4-WIRE SERVICES

TABLE 2 INSTRUMENT TRANSFORMER COMPARTMENT, 3,001-4,000A, DESCRIPTION LIST ITEM DESCRIPTION 1 BUS SUPPORT BAR 2 OPTIONAL BUS SUPPORTS 3 BUS SUPPORTS 4 10-32 SCREW AND WASHER 5 NEUTRAL 6 REMOVABLE SECTION B AND C.T. SUPPORT 7 VENTED BARRIER 8 TEST TRANSFORMER SUPPORT BAR 9 10-32 TAP INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. THE BUS ANCHORAGE SHALL BE SUCH THAT BUSSES WILL REMAIN IN POSITION WHEN REMOVABLE SECTION “B” IS OUT. II. THE DIRECTION OF FEED MAY BE FROM THE TOP OR BOTTOM. NO OTHER CONDUCTORS SHALL PASS THROUGH THIS COMPARTMENT. III. THE INSTRUMENT TRANSFORMER COMPARTMENT SHALL BE ON THE SUPPLY SIDE OF THE MAIN SWITCH OR BREAKER. IV ROUND BUS CORNERS AS NECESSARY TO PREVENT DAMAGE TO INSULATION. BUS INSULATION TO BE ADEQUATE FOR THE VOLTAGE INVOLVED. V. FOR UNDERGROUND SERVICES INSTALLED BY THE UTILITY, THE BUSSES SHALL EXTEND INTO THE UGPS. CONSULT THE UTILITY’S PLANNER. a b VI. THE MAXIMUM PERMISSIBLE BUS UNIT SHALL CONSIST OF SIX 1/4” X 5” BARS SPACED 1/4-INCH. VII.

THE BARRIER SHOULD NOT BE LESS THAN 45 INCHES AND SHALL NOT BE MORE THAN 50 INCHES ABOVE THE STANDING SURFACE. VIII.CLEARANCE TO THE SIDE OF THE COMPARTMENT SHALL BE INCREASED BY THE AMOUNT BY WHICH THE CORNER ANGLE EXCEEDS 1 INCH. IX. RETURN FLANGES FOR LOWER AND UPPER METER PANEL SUPPORT SHALL NOT PROJECT MORE THAN 3/4 INCH UP OR DOWN FROM ADJACENT SWITCHBOARD PANELS. XI THE BARRIER SHALL BE OF INSULATING MATERIAL AND A HAVE MINIMUM OF 40 VENT HOLES OF 3/8-INCH DIAMETER. XII ALL BUS SUPPORTS SHALL BE MOUNTED BEHIND THE FACE OF THE BUS. REFERENCE: a SEE SG708. b FOR CONTACT INFORMATION, SEE SG021. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET STANDARD SWITCHBOARD SERVICE SECTIONS SG517.22

22 OF 24 0-600V INSTRUMENT TRANSFORMER COMPARTMENT 3,001-4,000A THREE-PHASE, 3 AND 4-WIRE SERVICES

SCOPE: THIS STANDARD PROVIDES INFORMATION ON 3,001-4,000A REMOVABLE LINK AND CURRENT-TRANSFORMER SUPPORTS FOR STANDARD SWITCHBOARD SERVICE STATIONS. C L 1 1/4” NO. OF LINKS AS 1 1/4” REQUIRED DETAIL 3 2 1/2” II 8 7/8” 11 5/8” 3 DETAIL 1 4 1 3/8” 2 4X 9/16” SLOT 1 DETAIL 2 FIGURE 1 FIGURE 2 REMOVABLE LINK ASSEMBLY DRILLING AND SPACING OF BUS FURNISHED BY MANUFACTURER SEE TABLE 1 11” 4X 9/16” Ø C CL L 3/8” 3/8” 9/32” RADIUS 4 1/2” 1’-2 1/2” 4 1/4” 3/4” 1” 1” 11 5/8” 4 1/4” TOP VIEW 1 1/8” 9/16” 1 1/8” 3/16” MIN. 11” III DETAIL 3 5” 1 7/16” 1 3/8” 1 5/8” 3X 5/16” Ø 1 1/4” 1 3/8” 1 1/4” 5/8” 2 1/2” FRONT VIEW SIDE VIEW DETAIL 1 DETAIL 2 1/4-INCH X 5-INCH LINK IV INSULATED SUPPORT FOR CURRENT TRANSFORMER V © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET STANDARD SWITCHBOARD SERVICE SECTIONS SG517.23 23 OF 24 0-600V 3,001-4,000A REMOVABLE LINK AND CURRENT-XFMR SUPPORT FOR INSTRUMENT XFMR COMPARTMENTS WITH 5-INCH BUS

TABLE 1 INSTRUMENT TRANSFORMER COMPARTMENT, 3,001-4,000A, DESCRIPTION LIST ITEM DESCRIPTION 1 INSULATED TRANSFORMER SUPPORT 2 1/4” X 20 CAPSCREW 3 LINK 4 WINDOW TYPE CURRENT TRANSFORMER INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. THE MANUFACTURER SHALL SECURE THE REMOVABLE BUS LINK TO THE UPPER AND LOWER CT BUS UNITS USING 1/2-INCH HEX- HEAD STEEL BOLTS, NUTS (AS SHOWN) WITH A SPRING WASHER AND A NUT. THE SPRING WASHER MAY BE EITHER A CONE-TYPE (BELLEVILLE) OR A SPLIT-RING WASHER WITH A FLAT WASHER. BOLTS SHALL BE GRADE 5 (MINIMUM), AND LONG ENOUGH TO EXTEND A MINIMUM OF 1/2 INCH BEYOND THE NUT. WASHERS (BELLEVILLE OR FLAT) SHALL BE 2 1/4 INCHES (MINIMUM). II DRILL AND TAP TWO HOLES AS SHOWN ON THE OUTER UNITS FOR 1/4" X 20 CAPSCREWS. III CONSULT THE UTILITY FOR THE USE OF BUS BARS LARGER THAN 5 INCHES. IV SAME MATERIAL AS BUS V MATERIAL: INSULATING, NON-TRACKING REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET STANDARD SWITCHBOARD SERVICE SECTIONS SG517.24 24 OF 24 0-600V 3,001-4,000A REMOVABLE LINK AND CURRENT-XFMR SUPPORT FOR INSTRUMENT XFMR COMPARTMENTS WITH 5-INCH BUS

SCOPE: THIS STANDARD DESCRIBES REQUIREMENTS FOR MOBILE HOME PARK SERVICE AND METER PEDESTALS THAT ARE SINGLE- FAMILY OR MOBILE HOME RESIDENTIAL SERVICES RATED 100A MINIMUM, 225A MAXIMUM, SINGLE-PHASE, 120/208V OR 120/240V. C NEUTRAL BUS II F C E F III 6” MIN. 2” MIN. G GRADE LINE 1’-6” H MIN. 2’-0” MIN. I FIGURE 1 TYPICAL UNDERGROUND SERVICE AND METER POST/PEDESTAL B D © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG518.1 1 OF 3 MOBILE HOME PARK SERVICE AND METER PEDESTALS

INSTALLATION: ELECTRIC SERVICE REQUIREMENTS FOR MOBILE HOME PARKS: A. UNDERGROUND ELECTRIC SERVICE TO A MOBILE HOME LOT IS TO BE INSTALLED ALONG THE SHORTEST, MOST PRACTICAL ROUTE FROM THE SDG&E (UTILITY) SOURCE TO THE NEAREST METER AND SERVICE LOCATION ACCEPTABLE TO THE UTILITY. THIS LOCATION MAY BE: 1. ON A PERMANENTLY INSTALLED STRUCTURE LOCATED NEAR THE LOT LINE OF THE MOBILE HOME LOT CLOSEST TO THE UTILITY'S SOURCE. 2. A UTILITY-APPROVED METER POST/PEDESTAL LOCATED AT OR NEAR THE CLOSEST CORNER OF THE MOBILE HOME LOT TO THE UTILITY'S SOURCE. 3. IN ACCORDANCE WITH TITLE 25, ARTICLE 7, SECTIONS 1322, 1333, AND 1333.5, MOBILE HOMES, MANUFACTURED HOMES, OR COMMERCIAL COACHES, INSTALLED ON FOUNDATION SYSTEMS ARE PERMITTED TO BE SERVED BY THE UTILITY IN A MANNER APPLICABLE TO BUILDINGS. THE LOCATION OF THE METER AND SERVICE EQUIPMENT WILL BE DETERMINED BY THE UTILITY'S PLANNER. b 4. EACH MOBILE HOME PARK SPACE/UNIT CONSTRUCTED AFTER JANUARY 1, 1997, MUST BE INDIVIDUALLY SERVED BY THE UTILITY. 5.

PUBLIC UTILITIES CODE SECTIONS 2791 THROUGH 2799 IS A RESULT OF ASSEMBLY BILL 622 AND OUTLINES THE PROCESS WHEREBY THE OWNER OF A MOBILE HOME PARK MAY TRANSFER OWNERSHIP OF THE PARK'S DISTRIBUTION SYSTEM TO THE UTILITY. CONTACT THE PROJECT MANAGEMENT REGIONAL OFFICE NEAREST TO THE MOBILE HOME PARK LOCATION AND REQUEST INFORMATION FOR TRANSFER OF OWNERSHIP TO THE UTILITY. a c B THE SERVICE AND METERING EQUIPMENT SHALL BE TESTED, LISTED AND LABELED BY A NATIONALLY RECOGNIZED TESTING LABORATORY. THIS SERVICE AND METERING EQUIPMENT SHALL BE INSTALLED PER THE MANUFACTURER'S INSTALLATION INSTRUCTIONS AND UTILITY STANDARDS. AN ELECTRICAL INSPECTION CLEARANCE FROM THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) MUST BE GIVEN TO THE UTILITY BEFORE SERVICE CAN BE ESTABLISHED AND A METER SET. C THE METER SOCKET SHALL BE PROVIDED WITH A SEALING RING. THE METER SOCKET SHALL BE MOUNTED ON A SUPPORT AND ATTACHED TO THE METER PANEL. THE SOCKET SHALL BE FACTORY-WIRED WITH THE CONDUCTORS IN A SEPARATE OR BARRIERED RACEWAY FROM THE SERVICE TERMINATING LUGS TO THE METER SOCKET.

THESE CONDUCTORS SHALL BE INACCESSIBLE FROM THE MAIN DISCONNECT AND POWER OUTLET SECTION. THE CONDUCTORS WHICH EXTEND TO THE METER SOCKET SHALL BE CONNECTED AT THE SERVICE TERMINATING LUGS INDEPENDENTLY OF THE CONNECTION FOR THE SERVICE LATERAL CONDUCTORS. THE MINIMUM METER HEIGHT IS 36 INCHES ABOVE GRADE LINE WHEN THE METER IS ENCLOSED, OR 48 INCHES MINIMUM IF EXPOSED. METER PANELS SHALL BE REMOVABLE, BUT SHALL BE NON-REMOVABLE WHEN THE METER IS IN PLACE. IF THE METER IS ENCLOSED, THE ENCLOSING COVER SHALL BE HINGED AND SELF-SUPPORTING, EQUIPPED WITH A READING WINDOW, AND BE REMOVABLE FOR METER TESTING OR INSPECTION. D THE SERVICE MAIN DISCONNECT AND POWER OUTLET SECTION SHALL HAVE BARRIERS INSTALLED TO PREVENT ACCESS TO THE SERVICE CABLE PULL AND TERMINATING SECTION AND TO UNMETERED CONDUCTORS WHICH CONNECT TO THE SOCKET. E THE SERVICE CABLE PULL AND TERMINATING SECTION SHALL BE COVERED WITH A SEALABLE AND REMOVABLE PANEL OR PANELS, EXTENDING FROM 2 INCHES TO 6 INCHES ABOVE GRADE, AND WHEN REMOVED, GIVE FULL ACCESS TO THE SERVICE TERMINATING LUGS.

ACCESS TO THE SERVICE TERMINATING LUGS MAY BE EITHER THE FRONT OR THE REAR OF THE PEDESTAL. ACCESS SHALL BE UNRESTRICTED BY LOAD CONDUITS OR RACEWAYS. F A MINIMUM 12-INCH OPENING SHALL BE MAINTAINED FROM THE TERMINATING LUGS TO ANY FIXED PANEL BELOW THE LUGS. THE MINIMUM LUG HEIGHT IS 17 INCHES ABOVE GRADE LINE, THE MAXIMUM IS 48 INCHES. THE SERVICE TERMINATING LUGS SHALL BE NO. 2 TO 250 KCMIL ALUMINUM BODIED PRESSURE TYPE FOR CONNECTION OF THE SERVICE LATERAL CONDUCTORS. A SINGLE TERMINATING LUG PER PHASE AND NEUTRAL IS PREFERRED. IF TWO TERMINATING LUGS ARE PROVIDED PER PHASE, THE UTILITY REQUIRES ONE OF THE LUG'S SET SCREW TO BE REMOVED AND THE HOLE TO BE FILLED WITH A COMPOUND ACCEPTABLE TO THE MANUFACTURER. THIS REQUIREMENT IS NECESSARY TO AVOID ENERGY DIVERSION. THE SPACE BETWEEN TERMINATING LUGS, FROM LUGS TO SIDES OF POST, OR FROM LUGS TO PANEL ABOVE, SHALL BE 1 1/2 INCHES MINIMUM. RIGID INSULATING BARRIERS ARE REQUIRED AND SHALL PROJECT 1/4 INCH MINIMUM BEYOND ANY ENERGIZED PARTS WHEN THIS SPACE IS REDUCED.

TERMINATING LUGS MAY BE POSITIONED EITHER IN-LINE OR STAGGERED, AND ACCESS SHALL BE UNOBSTRUCTED WHEN ALL SERVICE CONDUCTORS ARE IN PLACE. THE NEUTRAL TERMINATING LUG SHALL BE BONDED TO THE POST/PEDESTAL. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG518.2 2 OF 3 MOBILE HOME PARK SERVICE AND METER PEDESTALS

INSTALLATION (CONT’D): G THE POST/PEDESTAL SHALL HAVE A MINIMUM CROSS SECTIONAL DIMENSION OF 4" X 8" INSIDE DIMENSION. A FIXED PANEL SHALL EXTEND 2 INCHES MINIMUM AND 6 INCHES MAXIMUM ABOVE GRADE AND 18 INCHES MINIMUM BELOW GRADE. H THE MINIMUM DEPTH OF THE POST/PEDESTAL IN THE GROUND SHALL BE 24 INCHES WITH OPENINGS AT THE BASE TO PERMIT THE SERVICE LATERAL CONDUIT TO ENTER INTO THE POST/PEDESTAL WITHOUT CUTTING THE 24-INCH MINIMUM RADIUS BEND. BILL OF MATERIALS: NONE NOTES: I 2-INCH SERVICE LATERAL CONDUIT REQUIRED FOR 100A. 3-INCH SERVICE LATERAL CONDUIT REQUIRED FOR 200A. II AN ACCEPTABLE GROUNDING TERMINAL SHALL BE PROVIDED TO ACCOMMODATE THE RANGE OF GROUNDING CONDUCTOR SIZING AS SPECIFIED BY CALIFORNIA ELECTRICAL CODE FOR THE SIZE OF THE SERVICE EQUIPMENT. III A MOISTURE BARRIER, LOCATED BELOW ALL TERMINALS AND OTHER LIVE PARTS, OR ADEQUATE VENTILATION, SHALL BE PROVIDED TO INHIBIT THE CONDENSATION OF MOISTURE. IV. FOR AUTHORIZATION TO ATTACH TELEPHONE AND CABLE TV TERMINATING FACILITIES, CONSULT THE UTILITY. REFERENCE: a FOR A LISTING OF THE REGIONAL OFFICES, SEE SG021.

b SEE TITLE 25, ARTICLE 7, SECTIONS 1322, 1333, AND 1333.5. c SEE PUBLIC UTILITIES CODE, SECTIONS 2791-2799. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG518.3 3 OF 3 MOBILE HOME PARK SERVICE AND METER PEDESTALS

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR 0-200A COMMERCIAL METER PEDESTALS. 3 1 1 10” 10” 1 3’-0” MIN. 4 4” 4 9” VI 2 5 6” 2” 1 1 11” MIN. 6” 1’-0” MAX. 6” MAX. 6 A II 1 12 3’-0” MIN. 6’–3” MAX. 3’-0” MIN. WORKING 1’-5” SPACE C 8 MIN. REQUIRED 1 LOAD LINE 9 A IV FIGURE 1 FIGURE 1 1 SINGLE TYPICAL FRONT VIEW I SIDE VIEW SEE TABLE 2 SEE TABLE 2 2’-0” MIN. 10 1/2” 10 1 1/2” 1 3/4” MIN. 11 1 7 3” MIN. 1 1’-5” 4’-0” MIN. 12 MIN. 3’-8” MIN. 2” MIN. Z 5” MAX. FIGURE 3 UTILITY TERMINATION SECTION SEE TABLE 1 FIGURE 2 DUAL FRONT VIEW III SEE TABLE 2 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG519.1 1 OF 7 COMMERCIAL METER PEDESTALS 0-200A

TABLE 1 TABLE 2 MINIMUM DIMENSIONS COMMERCIAL METER PEDESTALS, 0-200A, ITEM DESCRIPTIONS SERVICE Z (IN) ITEM DESCRIPTION 1-PHASE 10 1/2 1 HINGED DEMAND RESET COVER WITH POLYCARBONATE VIEWING WINDOW 3-PHASE 12 1/2 2 ENCLOSING COVER 3 WORKING SPACE FROM FACE OF PANEL REQUIRED 4 METER SOCKET 5 TEST-BYPASS SUPPORT 6 LANDING LUGS AND FACTORY INSTALLED CONDUCTORS 7 HANDLE 8 PROTECTIVE METALLIC BARRIER 9 PULL SECTION AND COVER 10 HINGED COVER WITH ATTACHED SIDES. SEE NOTE VI FOR FIXED TOP AND SIDES. 11 HINGED DEMAND RESET COVER 12 CUSTOMER SECTION INSTALLATION: A SERVICE CONDUCTORS ARE TO TERMINATE ON LANDING LUGS. THE SERVICE TERMINATION LUGS SHALL BE NO. 6 THROUGH 250 KCMIL PRESSURE-TYPE, CU-AL LISTED. INSULATED CABLE OR BUS SHALL BE INSTALLED BETWEEN THE LANDING LUGS AND THE TEST-BYPASS FACILITIES. B. INTERNAL EQUIPMENT ATTACHED TO THE OUTER WALLS OF THE ENCLOSURE SHALL BE SECURED IN PLACE WITH DEVICES THAT MAY NOT BE LOOSENED FROM THE OUTSIDE. SCREWS OR BOLTS REQUIRING SPECIAL TOOLS FOR INSTALLATION OR REMOVAL ARE NOT ACCEPTABLE.

C A PROTECTIVE METALLIC BARRIER (16-GAUGE MINIMUM) SHALL BE INSTALLED BETWEEN THE UTILITY TERMINATION SECTION AND THE CUSTOMER DISTRIBUTION SECTION. THERE SHALL BE A 1/4-INCH MINIMUM CLEARANCE BETWEEN THE CUSTOMER SECTION AND PROTECTIVE BARRIER TO PREVENT SCREWS AND BOLTS FROM PROTRUDING INTO THE TERMINATION SECTION. D. TEST-BYPASS BLOCKS WITH RIGID INSULATING BARRIER SHALL BE FURNISHED, INSTALLED AND WIRED OR BUSSED TO THE METER SOCKET BY THE MANUFACTURER. CONNECTION SEQUENCE IS LINE-LOAD FROM LEFT TO RIGHT. EACH LINE AND LOAD POSITION SHALL BE CLEARLY IDENTIFIED BY 3/4 INCH MINIMUM BLOCK LETTER LABELING. TEST-BYPASS COVER PANELS SHALL BE SEALABLE AND FITTED WITH A LIFTING HANDLE. ALL PANELS EXCEEDING 16 INCHES IN WIDTH SHALL REQUIRE TWO LIFTING HANDLES. E. ALL UTILITY COMPARTMENTS [METER COVER, DEMAND RESET COVER AND UNDERGROUND PULL SECTION (UGPS)] SHALL BE SEALABLE AND PADLOCKABLE. F. FOR IDENTIFICATION PURPOSES, THE NUMERIC PORTION OF THE ADDRESS MUST BE PAINTED WITH WEATHERPROOF PAINT OR

REFLECTIVE DECALS ON THE EXTERIOR FACE OF THE PORTION OF THE PEDESTAL FACING THE STREET OR DRIVABLE SURFACE IN NUMBERS AT LEAST 1 INCH. G. PLASTIC PADS ARE ACCEPTABLE, PROVIDED THE SUPPORTING PULL BOX IS FILLED WITH GRAVEL OR EARTH COMPACTED TO A MINIMUM OF 90 PERCENT. FOR OTHER STRUCTURAL MOUNTING AND SUPPORT OF THE PEDESTAL, CONSULT WITH THE SDG&E TRENCH INSPECTOR. H. SDG&E WILL NO LONGER SUPPLY TWO-WIRE, 120V SERVICE OR METERING TO PEDESTALS. SINGLE-PHASE SERVICE WILL BE THREE-WIRE REGARDLESS OF THE VOLTAGE, I.E. 120/208V, 120/240V, OR 240/480V. b © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG519.2 2 OF 7 COMMERCIAL METER PEDESTALS 0-200A

INSTALLATION (CONT’D): J. TO MAINTAIN A SAFE, CLEAR AND LEVEL WORKING SPACE WHEN A HOUSEKEEPING PAD HAS NOT BEEN INSTALLED, A CONCRETE SLAB ACCEPTABLE TO THE SDG&E INSPECTOR IS REQUIRED. THIS REQUIREMENT IS FOR PEDESTALS ON PRIVATE PROPERTY AND DOES NOT APPLY TO PEDESTALS INSTALLED IN PARKWAY AREAS OF THE STREET WHERE THERE IS A SIDEWALK. BILL OF MATERIALS: NONE NOTES: I THE PULL SECTION FOR UTILITY SERVICE MAY BE LOCATED ON THE FRONT, BACK OR SIDE OF A METER PEDESTAL, DEPENDING ON THE MANUFACTURER. II METER SECTION BARRIER TO EXTEND TO EDGE OF TEST BLOCK BARRIER. III 400A SINGLE-PHASE IS ACCEPTABLE FOR DUAL PEDESTALS. IV UTILITY TERMINATION SECTION SHALL BE DIMENSIONED AS SHOWN IN FIGURE 3. THESE DIMENSIONS ARE THE MINIMUM ACCESS OPENINGS ALLOWED FOR THESE TYPES OF TERMINATION SECTIONS. THE DEPTH OF THE WIREWAY SHALL ACCEPT A MINIMUM 3- INCH CONDUIT, AND THE COVER SHALL BE EQUIPPED WITH A LIFTING HANDLE. V. PEDESTALS SERVING BOTH METERED AND UNMETERED LOADS, I.E. TRAFFIC SIGNALS AND STREET LIGHTING, MUST HAVE LANDING

LUGS, WITH CUSTOMER WIRE FROM LUGS TO TEST BLOCKS (IF NOT BUSSED) TO SERVE METERED LOADS AND FROM LUGS TO BREAKERS TO SERVE UNMETERED LOADS. VI THE METER SHALL BE ENCLOSED AND THE ENCLOSING COVER SHALL BE HINGED TO ALLOW THE TOP, FRONT AND SIDES TO ROTATE BACK EXPOSING THE METERING COMPARTMENT IN ORDER TO PROVIDE CLEARANCES. VII. RESIDENTIAL TYPE PEDESTALS ARE NOT ACCEPTABLE FOR TEMPORARY CONSTRUCTION POWER FOR ANY TYPE OF PREMISES. TO SERVE TEMPORARY POWER, A METER PEDESTAL WITH TEST-BYPASSES, OR A PROPERLY MOUNTED SAFETY SOCKET CAN IS REQUIRED. a PHOTOELECTRIC CELLS ARE NOT PERMITTED IN THE UTILITY AREA, I.E. UGPS/METER SECTION. FOR METER PEDESTAL FOUNDATION DETAILS, SEE SHEET 6. REFERENCE: a SEE SG514 b FOR FIELD REPLACEMENT OF AN EXISTING 120V METER PEDESTAL, SEE SG520. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E

A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG519.3 3 OF 7 COMMERCIAL METER PEDESTALS 0-200A

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR 600A MAXIMUM COMMERCIAL METER PEDESTALS. 11” MIN. 12” MAX. 1 1 11” 3 1 2 1 5’-0” 4’-1” 1’-5 3/8” 3’-6” 2’-6” FIGURE 1 FIGURE 1 FIGURE 1 LEFT SIDE VIEW FRONT VIEW PANEL SIDE VIEW SEE TABLE 1 SEE TABLE 1 3’-6” 2’-6” 1” 2” 3’-2” 1’-3 3/8” 1’-0 1/2” 1’-3 3/8” 1’-5 3/8” 1” FIGURE 1 FRONT BASE PLAN 3’-6” 10” 10” 10” 10” 9” LOAD LOAD LOAD FIGURE 2 METERING COMPARTMENT I © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG519.4 4 OF 7 COMMERCIAL METER PEDESTALS 600A MAXIMUM

TABLE 1 COMMERCIAL METER PEDESTALS, 600A MAXIMUM, ITEM DESCRIPTIONS ITEM DESCRIPTION 1 METER SOCKET 2 TEST-BYPASS SUPPORT 3 HINGE DEMAND RESET COVERS WITH POLYCARBONATE VIEWING WINDOW INSTALLATION: A. TERMINATING FACILITIES FOR THE UTILITY’S SERVICE LATERAL CONDUCTORS SHALL BE ALUMINUM-BODIED MECHANICAL LUGS WITH A RANGE ACCEPTING A 4 AWG THROUGH 500 KCMIL CONDUCTOR. TWO LUGS PER PHASE SHALL BE PROVIDED FOR TERMINATIONS RATED 401–600A IN THIS METER PEDESTAL APPLICATION. B. INTERNAL EQUIPMENT ATTACHED TO THE OUTER WALLS OF THE ENCLOSURE SHALL BE SECURED IN PLACE WITH DEVICES THAT MAY NOT BE LOOSENED FROM THE OUTSIDE. SCREWS OR BOLTS REQUIRING SPECIAL TOOLS FOR INSTALLATION OR REMOVAL ARE NOT ACCEPTABLE. C. A PROTECTIVE METALLIC BARRIER (16-GAUGE MINIMUM) SHALL BE INSTALLED BETWEEN THE UTILITY TERMINATION SECTION AND THE CUSTOMER DISTRIBUTION SECTION. D. TEST-BYPASS BLOCKS WITH RIGID INSULATING BARRIER SHALL BE FURNISHED, INSTALLED AND WIRED OR BUSSED TO THE METER SOCKET BY THE MANUFACTURER. CONNECTION SEQUENCE IS LINE-LOAD FROM LEFT TO RIGHT. EACH LINE AND LOAD POSITION

SHALL BE CLEARLY IDENTIFIED BY 3/4-INCH MINIMUM BLOCK LETTER LABELING. TEST-BYPASS COVER PANELS SHALL BE SEALABLE AND FITTED WITH A LIFTING HANDLE. ALL PANELS EXCEEDING 16 INCHES IN WIDTH SHALL REQUIRE TWO LIFTING HANDLES. E. ALL UTILITY COMPARTMENTS (METER COVER, DEMAND RESET COVER AND UGPS) SHALL BE SEALABLE AND PADLOCKABLE. F. FOR IDENTIFICATION PURPOSES, THE NUMERIC PORTION OF THE ADDRESSES MUST BE PAINTED WITH WEATHERPROOF PAINT OR REFLECTIVE DECALS ON THE EXTERIOR FACE OF THE PORTION OF THE PEDESTAL FACING THE STREET OR DRIVABLE SURFACE IN NUMBERS AT LEAST 1 INCH HIGH. G. WHEN SERVICE EQUIPMENT IS INSTALLED ON A "HOUSEKEEPING PAD", THAT PAD MUST BE LEVEL AND EXTEND A MINIMUM OF 3 FEET MEASURED FROM THE FACE OF THE METER PANEL. SEE THE FIGURES ON SG517 UNDER THE “OUTDOOR/RAINTIGHT ENCLOSER (NEMA 3R) SCOPE, AS THEY ALSO APPLY TO THIS INSTALLATION. a BILL OF MATERIALS: NONE NOTES: I WEATHERPROOF DOOR REMOVED METER AND TEST BLOCK BARRIERS IN PLACE II. COMMERCIAL METER PEDESTALS RATED 401–600A REQUIRE THREE-PHASE, 4-WIRE SERVICE. SINGLE-PHASE SERVICE IS NOT

AVAILABLE FOR COMMERCIAL APPLICATIONS 401A, AND LARGER. THIS EQUIPMENT IS DESIGNED FOR A MAXIMUM OF THREE METER SOCKETS. IV. PHOTOELECTRIC CELLS ARE NOT PERMITTED IN THE UTILITY AREA, I.E. UGPS/METER SECTION. REFERENCE: a SEE SG517. b. FOR WORKING SPACE AND CLEARANCE REQUIREMENTS, 0–600V, SEE SG504. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG519.5 5 OF 7 COMMERCIAL METER PEDESTALS 600A MAXIMUM

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR COMMERCIAL METER PEDESTAL FOUNDATIONS. C L 10” 10” C L C 10” 10” L 2” 10” 10” 6” CL 2” 2” C 4” 6” L 6” CL 6” 4” 6” 4” 6” 1 1 1 I 1 1 I 1 I 3” 7 2” 1 4 1’-0” 1 2” GRADE MIN. LEVEL 2’-0” MIN. GRADE 5 MAXIMUM 6” LEVEL 1 DEPTH OF 10” 6 2” GRADE 3 2 1 2’-0” LEVEL 1 1 EXAMPLE 1 EXAMPLE 2 EXAMPLE 3 PEDESTAL ON SLAB PEDESTAL ON FOUNDATION PEDESTAL ON PRE-CAST BASE FRONT VIEW FRONT VIEW FRONT VIEW FIGURE 1 SEE TABLE 1 2’-8” 2’-0” 8” 1’-5 13/16” 3’-0” 4’-6” 2’-6 3/4” 1’-3” II 9 8 1 1 3” FIGURE 2 PEDESTAL ON PAD WITH PLASTIC SUPPORT BOX III SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG519.6 6 OF 7 COMMERCIAL METER PEDESTALS FOUNDATION DETAILS

TABLE 1 METER PEDESTAL FOUNDATION DETAILS ITEM DESCRIPTION 1 CUSTOMER SECTION 2 CONCRETE SLAB 3 CONCRETE FOOTING 4 ONE SACK SLURRY 5 CONCRETE PRE-CAST BASE 6 CONCRETE 7 BASE BRACKET 8 STRUCTURAL PLASTIC SUPPORT BOX UNDER FRP PADS 9 FIBERGLASS REINFORCED POLYMER (FRP) PADS INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I TABLE 2 METER HEIGHT REQUIREMENTS TYPE MIN. HEIGHT (IN) MAX. HEIGHT ENCLOSED 36 6’-3” EXPOSED 48 II COMPACTED DIRT TO TOP OF THE PLASTIC SUPPORT BOX. III PEDESTAL NOT SHOWN. REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG519.7 7 OF 7 COMMERCIAL METER PEDESTALS FOUNDATION DETAILS

SCOPE: THIS STANDARD APPLIES TO FIELD REPLACEMENT OF EXISTING 120V METER PEDESTALS FOR RESIDENTIAL SERVICE ONLY. ATTENTION: * THE REPLACEMENT OPTION IS NOT AVAILABLE FOR NON-RESIDENTIAL APPLICATIONS IN WHICH CASE A NEW SINGLE-PHASE 3-WIRE, 120/240V COMMERCIAL PEDESTAL IS REQUIRED. a A 2 NEUTRAL BUS 3 LOAD WIRES 4 B 4’-0” 5 6 C D E F 1 TO CUSTOMER LOAD FIGURE 1 METER PEDESTAL III SEE TABLE 1 TABLE 1 FIGURE ITEMS ITEM DESCRIPTION DETAILS 1 ELECTRODE, APPROVED GROUNDING TYPICAL LENGTH IS 8 FEET. 2 BREAKER COMPARTMENT IV 3 LUG, PEDESTAL BOND MAY BE A BAND SCREW IN SOME MODELS 4 LANDING BLOCK, NEUTRAL, CUSTOMER'S 5 LOAD CONDUCTORS SHALL NOT BE RUN THROUGH UTILITY'S UGPS 6 GROUND WIRE, NO. 4 BARE COPPER © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/INSTALLATION UPDATE EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG520.1 1 OF 2 FIELD REPLACEMENT OF EXISTING 120V METER PEDESTAL

INSTALLATION: A THE METER SOCKET, BREAKER COMPARTMENT AND UNDERGROUND PULL SECTION (UGPS) MUST BE RAINTIGHT EQUIPMENT. METER SOCKET JAWS OR CLIPS SHALL BE FREE OF FOREIGN MATERIAL (MUD, PAINT, PLASTER, ETC.). RINGLESS METER SOCKETS ARE NOT ACCEPTABLE. THE SOCKET SHALL HAVE A MINIMUM RATING OF 100A AND BE FACTORY-WIRED WITH THE CONDUCTORS IN A SEPARATE OR BARRIERED WIREWAY FROM THE SERVICE TERMINATION LUGS TO THE METER SOCKET. THE CONDUCTORS WHICH EXTEND TO THE METER SHALL BE CONNECTED AT THE SERVICE TERMINATION LUGS INDEPENDENT OF THE CONNECTIONS FOR THE SERVICE LATERAL CONDUCTORS. THE MINIMUM METER HEIGHT SHALL BE 48 INCHES, MEASURED FROM THE STANDING SURFACE TO CENTERLINE OF METER SOCKET. IF THE METER IS ENCLOSED, THE MINIMUM HEIGHT MAY BE REDUCED TO 36 INCHES. B A MINIMUM 12-INCH OPENING SHALL BE MAINTAINED FROM THE TERMINATING LUGS TO ANY FIXED PANEL BELOW THE LUGS. THE MINIMUM LUG HEIGHT IS 17 INCHES ABOVE GRADE LINE, THE MAXIMUM IS 48 INCHES. THE SERVICE TERMINATING LUGS SHALL BE NO. 8 TO NO. 2 ALUMINUM-BODIED PRESSURE TYPE FOR CONNECTION OF THE SERVICE LATERAL CONDUCTORS.

C THE GROUND WIRE SHALL BE CONTINUOUS FROM THE NEUTRAL LANDING BLOCK IN THE BREAKER COMPARTMENT TO A GROUNDING ELECTRODE SYSTEM IN COMPLIANCE WITH NEC ARTICLE 250. THE GROUND WIRE MUST BE PROPERLY SUPPORTED AND ATTACHED TO THE OUTSIDE OF THE PEDESTAL AT 24-INCH INTERVALS. WHEN ATTACHING THE GROUND WIRE TO THE PEDESTAL, THE METHOD OF ATTACHMENT SHALL NOT RESULT IN SHARP PROJECTIONS, SUCH AS METAL SCREWS INTO THE WIRE WAY BELOW THE NEUTRAL LANDING BLOCK. SEE FIGURE 1 FOR THE PREFERRED METHOD OF INSTALLING THE GROUNDING ELECTRODE CONDUCTOR. D THE UTILITY’S UGPS SHALL BE COVERED WITH A SEALABLE, REMOVABLE PANEL, EXTENDING FROM AT LEAST 2 INCHES TO 6 INCHES ABOVE THE CONCRETE PAD, AND WHEN REMOVED, ALLOW FULL ACCESS TO THE SERVICE TERMINATION LUGS. ACCESS TO THE UTILITY UGPS SHALL NOT BE BLOCKED IN ANY MANNER. NO CUSTOMER WIRING OR EQUIPMENT IS ALLOWED IN THIS AREA. E THE PEDESTAL AT GRADE LINE SHALL HAVE A MINIMUM CROSS-SECTIONAL DIMENSION OF 4” X 8” INSIDE DIMENSION. THE FIXED PANEL FOR THE FINAL GRADE AND CONCRETE POUR SHALL EXTEND 2 INCHES TO 6 INCHES ABOVE GRADE AND A MINIMUM OF 18

INCHES BELOW GRADE. THE PEDESTAL SHALL EXTEND 24 INCHES BELOW GRADE. THAT PORTION OF THE PEDESTAL BURIED IN CONCRETE AND EARTH SHALL BE COATED WITH AN APPROVED CORROSION-RESISTANT MATERIAL SUCH AS ZINC, CADMIUM OR ENAMEL TO WITHSTAND DETERIORATION. POURED CONCRETE SLAB SHALL BE 24" X 24" MINIMUM SIZE AND HAVE A 3 1/2-INCH MINIMUM THICKNESS. THE CUSTOMER SHALL BE RESPONSIBLE FOR THE FINAL GRADE OF THE UTILITY ISLAND AND THE INCLUDED METER PEDESTAL. F THE APPROVED GROUND ELECTRODE CLAMP AND CONDUCTOR SHALL BE BURIED, FLUSH OR SOMEHOW PROTECTED FROM PHYSICAL DAMAGE. THE CLAMP SHALL BE LISTED FOR UNDERGROUND USE. GROUND ROD SHALL NOT BE INSTALLED IN OR BENEATH THE CONCRETE SLAB. G. THE NEW PEDESTAL INSTALLATION SHALL BE INSPECTED AND APPROVED BY THE AHJ BEFORE THE UTILITY CAN ENERGIZE AND SET THE METER. BILL OF MATERIALS: NONE NOTES: GENERAL INFORMATION: I. SDG&E (UTILITY) PLANNER APPROVAL IS REQUIRED IN ADVANCE OF REPLACING AN EXISTING 120V, SINGLE-PHASE, 2-WIRE METER PEDESTAL. II. THE REPLACEMENT PEDESTAL SHALL BE LISTED AS EQUIPMENT SUITABLE FOR USE AS SERVICE EQUIPMENT AND MEET ALL

REQUIREMENTS OF THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) AND UTILITY. THE TOTAL AMPACITY OF THE BREAKERS IS NOT TO EXCEED 30A, WITH NO MORE THAN 2 BREAKERS. III FIGURE 1 IS AN ILLUSTRATION OF THE PEDESTAL AND A LIST OF MATERIALS FOR A NORMAL METER PEDESTAL REPLACEMENT. THIS IS NOT INTENDED TO BE ALL INCLUSIVE BUT PROVIDES THE MOST COMMON REQUIREMENTS. IV THE PEDESTAL SHALL HAVE A MINIMUM 10,000A WITHSTAND RATING AND THE BREAKER(S) SHALL HAVE A MINIMUM 10,000A INTERRUPTING CAPACITY (AIC) RATING. REFERENCE: a SEE SG519: COMMERCIAL METER PEDESTALS. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING/INSTALLATION UPDATE EDM IWA JTM KRG 02/07/2025 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG520.2 2 OF 2 FIELD REPLACEMENT OF EXISTING 120V METER PEDESTAL

SCOPE: THIS STANDARD ESTABLISHES THE REQUIREMENTS FOR INSTALLING NEW ELECTRIC SERVICE AND METERING FOR WIRELESS COMMUNICATION SYSTEMS ON PRIVATE PROPERTY. BUILDING OR COMMUNICATION STRUCTURE EQUIPMENT ROOM GROUPED METERING SCENARIO I COMMUNICATION SYSTEM LOCATED IN OR ON A BUILDING D E COMMUNICATION BUILDING OR COMMUNICATION ANTENNAE STRUCTURE EQUIPMENT ENCLOSURE GROUPED METERING SCENARIO II COMMUNICATION ANTENNAE LOCATED IN OR ON A BUILDING WITH D E COMMUNICATION EQUIPMENT REMOTE FROM BUILDING COMMUNICATION ANTENNAE COMMUNICATION EXISTING EQUIPMENT III METERING ENCLOSURE RESIDENTIAL OR COMMERCIAL/INDUSTRIAL METER PANEL I BUILDING OR STRUCTURE METER PEDESTAL II SCENARIO III COMMUNICATION SYSTEM COMPLETELY SEPARATE FROM A RESIDENTIAL OR COMMERCIAL/INDUSTRIAL STRUCTURE WITH AN EXISTING ELECTRIC SERVICE FIGURE 1 EXAMPLES OF ACCEPTABLE METER AND SERVICE LOCATIONS TO COMMUNICATION SYSTEMS C SYSTEMS © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 02/07/2025 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG522.1 1 OF 2 WIRELESS COMMUNICATIONS ON PRIVATE PROPERTY

INSTALLATION: GENERAL INFORMATION: A. A COMMUNICATION SYSTEM INCLUDES A COMMUNICATION EQUIPMENT ENCLOSURE AND COMMUNICATION ANTENNAE. B. WHEN AN EXISTING METER ROOM OR CABINET DOES NOT HAVE SPACE REMAINING TO GROUP THE NEW METER PANEL WITH THE EXISTING, SPECIAL PERMISSION MAY BE GRANTED BY THE SDG&E PLANNER AND THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) TO LOCATE THE NEW METER PANEL AND METER SERVICE DISCONNECT AS CLOSE AS PRACTICAL TO THE EXISTING METER LOCATION OUTSIDE THE METER ROOM OR CABINET. C IT IS IMPORTANT TO NOTE THAT A STRUCTURE INCLUDES A WATER TANK, LIGHT POLE, AND SIMILAR TYPES OF CONSTRUCTION. D THE ELECTRIC SERVICE TO THE COMMUNICATION SYSTEM SHALL BE SERVED FROM THE EXISTING BUILDING SERVICE. THE NEW METER SHALL BE GROUPED WITH THE EXISTING METER(S) IN ACCORDANCE WITH ALL OTHER SERVICE STANDARDS REQUIREMENTS. E THE ANTENNAE LOCATION MAY BE IN OR ON THE BUILDING, OR REMOTELY LOCATED FROM THE BUILDING. BILL OF MATERIALS: NONE NOTES: I A NEW METER PANEL AND SERVICE ON THE EQUIPMENT ENCLOSURE SEPARATE FROM THE BUILDING IS ACCEPTABLE.

II A NEW SERVICE AND METER PEDESTAL MAY BE INSTALLED SEPARATE FROM THE BUILDING AND EQUIPMENT ENCLOSURE. THE METER PEDESTAL SHALL NOT BE LOCATED WITHIN THE REQUIRED PROPERTY LINE SETBACKS ESTABLISHED BY THE AHJ. THE CUSTOMER IS TO CONSULT WITH THE AHJ FOR SETBACK REQUIREMENTS. III A NEW METER PANEL GROUPED WITH EXISTING BUILDING METER(S) IS ACCEPTABLE. IV. THE CALIFORNIA ELECTRICAL CODE REQUIRES THAT GROUNDING SYSTEMS MUST BE ELECTRICALLY BONDED TO ONE ANOTHER WHEN MULTIPLE SERVICES MAINTAIN ELECTRICAL AND/OR COMMUNICATIONS SYSTEMS ON THE SAME STRUCTURE. REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 02/07/2025 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG522.2 2 OF 2 WIRELESS COMMUNICATIONS ON PRIVATE PROPERTY

SCOPE: THIS STANDARD SHOWS A CUSTOMER OWNED AND INSTALLED WIRELESS COMMUNICATIONS ANTENNA ATTACHMENT ON AN SDG&E WOOD POLE. ATTENTION * THIS CONSTRUCTION IS NOT ALLOWED ON A POLE WITH EQUIPMENT OR SWITCHES INSTALLED. A PRIMARY SUPPLY LEVEL a 30" x 30" CLIMBING 26 SECONDARY SPACE SUPPLY LEVEL 24 25 WIRELESS COMMUNICATION 23 SDG&E RISER E 3'-0" 6'-0" MIN. B SECONDARY RISER COMMUNICATION LEVEL C FIGURE 1 L L 2'-0" MIN. VIEW A-A D F 1 C 2'-0" MIN. F 3 WORKING SPACE WORKING SPACE 2 I 2'-6" MIN. 3'-0" MIN. 4 5 6 c e 17 8 FIGURE 1 A A VIEW B-B H RF POWER SHUT-OFF F ELECTRIC DISCONNECT B SERVICE B METER LOCK 11 J WORKING K SPACE 3'-0" 3'-0" MIN. MIN. b 10 9 COMMUNICATIONS SECONDARY SUPPLY FIGURE 1 FIGURE 1 FIGURE 1 ISO VIEW FRONT VIEW SIDE VIEW REV CHANGE DRWN BY CHKD APVD DATE SDG&E ELECTRIC OVERHEAD, UNDERGROUND, AND SERVICE GUIDE CONSTRUCTION STANDARDS SCALE: NOT TO SCALE D EDITORIAL CHANGES EDM JIK JTM KRG 01/03/2025 CUSTOMER-OWNED WIRELESS COMMUNICATIONS DRAWING NO: SHEET: OH575.1 C REVISED TO 3D FORMAT NV5 JIK - - 07/22/2022 PROVIDER ATTACHMENT TO DISTRIBUTION POLE UG4650.1 1 OF 2

B DRAWING UPDATE PEI - - - 03/18/2019 (METERED SERVICE) SG523.1 © 1998 - 2025 San Diego Gas and Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. Completely Revised New Page X Indicates Latest Revision Information Removed

INSTALLATION: BILL OF MATERIALS (CONT'D): STANDARD STOCK DESIGN A DO NOT INSTALL A TELECOMMUNICATION ANTENNA ON A POLE CONTAINING A SINGLE-PHASE TRANSFORMER, THREE-PHASE ITEM DESCRIPTION QUANTITY CALLOUTS PAGE NUMBER UNIT TRANSFORMER, BOOSTER, SERVICE RESTORER, CAPACITOR, REGULATOR, PRIMARY METERING, HOOKSTICK OR GANG-OPERATED 24 041320 LUMINAIRE, COBRAHEAD, ST LIGHT 1 - - S473400 - SWITCH, CUTOUTS OR PRIMARY RISERS. 25 CONTROL, PHOTOELECTRIC, SOLID STATE 120 VOLTS, 1800VA LOAD, TURN-ON 1.5 FC, 1 - - S273888 - TWISTLOCK SOLID BRASS BLADES PER ANSI C-136.10-19 A B A MINIMUM SIX FOOT OF VERTICAL AND RADIAL CLEARANCE MUST BE MAINTAINED FROM THE TELECOMMUNICATIONS ANTENNAS OR 26 CLEVIS DEAD END SECONDARY INSULATOR WITH NEMA TR53-3 GRAY INSULATORS 1 - - S235488 - SUPPORTING EQUIPMENT TO SDG&E SUPPLY CONDUCTOR LEVEL. ASSEMBLED. STD. PKG. = 15 C ANTENNAS AND SUPPORTING ELEMENTS SHALL MAINTAIN A MINIMUM 24 INCHES OF VERTICAL SEPARATION FROM COMMUNICATION 27 CONDUIT, ELBOW, PVC, SCH 80, 3", RISER 4 IV - S322472 3"CP-B CONDUCTORS AND EQUIPMENT.

28 COUPLING 3" PVC SCHEDULE 40, PER NEMA 2 IV - S280448 X-COND 29 GAIN, CROSSARM, 3/4" MAXIMUM BOLT SIZE 2 IV 388 S369596 - D ANTENNAS SHALL BE INSTALLED ON CROSSARMS AND MAINTAIN 24 INCHES HORIZONTAL CLEARANCE FROM THE CENTERLINE OF 30 SCREW, LAG, 1/2" X 4", TWIST DRIVE 2 IV - S621568 - POLE. 31 BOLT, MACHINE, 5/8" X 14", GALV W/ NUT 7 IV 390 S154880 - E ANTENNAS SHALL MAINTAIN 36 INCHES VERTICAL AND RADIAL CLEARANCE FROM STREET LIGHTS AND MAST ARMS. 32 BOLT, MACHINE, 3/4" X 12", GALV W/ NUT 1 IV 390 S153408 - F 33 BOLT, MACHINE, 1/2" X 8", GALV W/ NUT 4 IV 390 S153150 - THIS INSTALLATION MUST BE CLEARLY MARKED WITH THE APPROPRIATE SIGNAGE, PER FCC, CPUC AND UTILITY REGULATIONS. 34 WASHER, CURVED, RIB, 4" X 4" X 17/32", 13/16" HOLE, FOR 3/4" BOLT, GALV 16 IV - S797760 RIBWSH SIGNAGE TO BE INSTALLED AND MAINTAINED BY THE TELECOMMUNICATION ANTENNA OWNER. g 35 WASHER, 3/4", DOUBLE COIL SPRING, TYPE M-W, STEEL, TIN/ZINC COAT 8 IV - S798496 - G THESE ITEMS SUPPLIED AND INSTALLED BY THE TELECOMMUNICATION ANTENNA OWNER. 36 NUT, SQUARE, 3/4", GALV 4 IV - S504768 -

H A MUNICIPALLY APPROVED RF POWER SHUTOFF DISCONNECT, WITH TEST POINTS, WILL BE INSTALLED AND CLEARLY MARKED BY THE 37 WASHER, SPRING LOCK, 1/2", STAINLESS 20 IV - S796944 - TELECOMMUNICATION ANTENNA OWNER. THIS DISCONNECT, WHEN OPEN, WILL PREVENT THE ANTENNAS FROM GENERATING RADIO 38 TIE INSUL TOP, FOR USE ON "F" NECK, 4 IV 760 S738900 ST336F 39 CONDUIT, PVC, SCH 80, 3" X 10' 2 IV - S251552 - FREQUENCY (RF), INCLUDING WHEN ON BATTERY BACK-UP PER NEC. MAINTAIN A MINIMUM OF 36 INCHES DEEP BY 30 INCHES WIDE 40 CLAMP, PIPE, STEEL, GALV., UNISTRUT, 3" 19 IV - S229632 UPC3IN CLEAR WORKING SPACE. f 41 CONDUIT, PVC, SCH 40, 3" X 10' 8 IV - S251360 - J A CUT-AWAY LOCK WILL BE PROVIDED BY THE TELECOMMUNICATION ANTENNA OWNER FOR SECURING THE RF POWER SHUTOFF 42 DO NOT USE-REPLACE WITH S505536 NUT, HEX S/S, 1/2" 20 IV 378, 1355 S550536 - 43 NUT, SQUARE, 5/8", GALV 20 IV - S506880 - DISCONNECT. 44 BOLT, MACHINE, 5/8" X 12", GALV W/ NUT 3 IV 390 S154848 - K A CLEAR AND LEVEL WORKING SPACE WITH BOTH A WIDTH AND DEPTH OF 36 INCHES MUST BE MAINTAINED FROM FACE OF METER

45 WASHER, FLAT, ROUND, 1/2" X 1 3/8" OD, GALV 4 IV - S800192 - PANEL. 46 WASHER, 1/2", DOUBLE COIL SPRING, TYPE M-W, STEEL, TIN/ZINC COAT 4 IV - S798464 - L MAST MUST BE GROUNDED. 47 SCREW, SELF-TAPPING, #5, 1-1/4", 12-24 11 IV - S618086 - 48 STRAP, GLV, 3/8", FOR #4 7 IV - S697304 - BILL OF MATERIALS: 49 PADLOCK, 30 SERIES, ALLOY, ELECTRIC 1 IV - S514848 - STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY CALLOUTS 50 BOLT, MACHINE, 5/8" X 18", GALV W/ NUT 1 IV 390 S154944 - PAGE NUMBER UNIT 1 CROSSARM, WD, PENTA, 10', 4 PIN 2 G III 380 S294128 4- NOTES: 2 CUSTOMER-OWNED ANTENNA, DIRECTIONAL OR OMNI-DIRECTIONAL 4 G - - - I ANY COMMUNICATION ANTENNA ATTACHMENTS MUST COMPLY WITH SEE THE CPUC, G.O. 95, AND 128 PUBLICATIONS RULES. d 3 TAG, OWNERSHIP I.D. 1 F 209 - - II ONE TELECOMUNICATION PROVIDERS ATTACHMENT (ANTENNA, ANCILLARY EQUIPMENT) PER POLE. 4 BRACKET, LADDER ARM, STL, GLV 10 G - S167186 RARM/L 5 CHANNEL, 1-5/8" X 1-5/8" BACK TO BACK 10 G - S216702 RARM/L III SIZE AND/OR TYPE MAY VARY DEPENDING UPON SPECIFIC DESIGN NEEDS.

6 NUT, STUD, GLV, 1/2" X 1-3/8" 20 G - S507000 LA-ARM IV NOT SHOWN ON FIGURES 7 WIRE, PVC COVERED, #4 SOL CU 1 G b 718 S812490 4POLY REFERENCE: 8 GALVANIZED STAPLES FOR PVC COVERED GROUND WIRE 22 G - S678564 - 9 5/8" GROUND ROD CONNECTOR 1 G - S259010 - a FOR ALLOWABLE WORKING AND CLIMBING SPACE, SEE OH251. 10 ROD, GROUND, 5/8" X 8FT, 10 MIL COPPER COATED STEEL 1 G 1002 S603074 GNDPSP b FOR GROUNDING METHODS, SEE OH1002. G GNDPVC c FOR RISER POSITION, SEE OH1402UG4206. 11 CUSTOMER-OWNED ANCILLARY EQUIPMENT 1 IV - - - d SEE THE CPUC, G.O. 95, AND 128 PUBLICATIONS RULES. 12 WASHER 5/8" DOUBLE COIL SPRING TYPE 12 IV - S798560 - 13 WASHER SQUARE, 2-1/4" X 2-1/4" 3 IV - S799040 - e FOR RISER CONSTRUCTION, SEE OH1404UG4204. 14 WASHER, FLAT, SQUARE, 4" X 4" X 3/8", 13/16" HOLE, STEEL GALV 8 IV 379 S800070 - f SEE ESP124. 15 BOLT, MACHINE, 5/8" X 16", GALV W/ NUT 4 III IV - S154912 - g SEE SG209. 16 SIGN, "HIGH VOLTAGE", 3", ADHESIVE 4 III IV 208 S647650 - 17 SIGN, PRINTED "PN" IN 3" X 1-1/8" 2 III IV 208 S648004 GNDPVC 18 INSULATOR, 25KV, "F" NECK, PIN TYPE 1-3/8" 3 III IV - S429054 -

19 INSULATOR, WHITE, NEUTRAL, 55-5 HENDRIX 1 III IV - S432220 - 20 PIN, INSULATOR, 12KV, FORGED STEEL, GALV 4 III IV 396 S532450 PS1Z 21 BRACE, CROSSARM, ANGLE, 5FT, 1 1/2" X 3/16", STEEL, GALVANIZED 2 IV 390 S164128 - 22 BRACKET, WIREHOLDER, 1-1/4" TO 2-1/2" 1 - 631 S166880 - 23 BRACKET, UPSWEEP, STREET LIGHTING, 1 - - S167264 - REV CHANGE DRWN BY CHKD APVD DATE SDG&E ELECTRIC OVERHEAD, UNDERGROUND, AND SERVICE GUIDE CONSTRUCTION STANDARDS SCALE: NOT TO SCALE D EDITORIAL CHANGES EDM JIK JTM KRG 01/03/2025 CUSTOMER-OWNED WIRELESS COMMUNICATIONS DRAWING NO: SHEET: OH575.2 C REVISED TO 3D FORMAT NV5 JIK - - 07/22/2022 PROVIDER ATTACHMENT TO DISTRIBUTION POLE UG4650.2 2 OF 2 B DRAWING UPDATE PEI - - - 03/18/2019 (METERED SERVICE) SG523.2 © 1998 - 2025 San Diego Gas and Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. Indicates Latest Revision X Completely Revised New Page Information Removed

SCOPE: THIS STANDARD ILLUSTRATES INSTALLATION OF UNMETERED ELECTRIC SERVICE FROM AN UNDERGROUND SOURCE. ATTENTION: * THE INSTALLATION AND ALL MATERIALS SHOWN IN THE ILLUSTRATIONS BELOW ARE PROVIDED BY THE CUSTOMER. ** ALL INSTALLATIONS MUST COMPLY WITH THE REQUIREMENTS OF AND BE INSPECTED BY, THE AHJ AND SDG&E (UTILITY). 2’-6” MIN. 2 A 1’-5” MIN. 3 1 II FIGURE 1 TOP VIEW FINAL GRADE 4” 1’-0” MIN. TO GRADE 6 B 4 5 a FIGURE 1 SIDE VIEW 8 7 FIGURE 2 WIRING DIAGRAM INSIDE FUSE SPLICE BOX © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 F B EDITORIAL CHANGES PEI/EDM IPJ IPJ CZH 08/10/2021 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG524.1 1 OF 7 UNMETERED ELECTRIC SERVICE FROM AN UNDERGROUND SOURCE

INSTALLATION: A MOUNT FUSE BOX SECURELY ON SUPPORTS INSIDE. B GRAVEL BASE SUITABLE FOR PROPER DRAINAGE REQUIRED. BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 FUSE BOX -- -- -- 2 PLAQUE, SUITABLE, FUSE BOX, IDENTIFICATION SHEET 6 -- -- 3 HANDHOLE, CUSTOMER OWNED AND INSTALLED -- -- -- 4 CABLE AND CONDUIT, CUSTOMER -- -- -- AS REQ’D 5 GROUNDING ELECTRODES -- -- -- 6 GRAVEL BASE -- -- -- 7 BREAKER -- -- -- 8 FUSES -- -- -- NOTES: I. ALTERNATE FUSING METHODS: a. FUSED DISCONNECT SUITABLE FOR UNDERGROUND APPLICATION, OR IN A SUITABLE ENCLOSURE. II FUSE BOX TO BE LOCKED AND SEALED BY SDG&E. REFERENCE: a SEE CEC/AHJ REQUIREMENTS M © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 F B EDITORIAL CHANGES PEI/EDM IPJ IPJ CZH 08/10/2021 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG524.2 2 OF 7 UNMETERED ELECTRIC SERVICE FROM AN UNDERGROUND SOURCE

SCOPE: THIS STANDARD ILLUSTRATES UNMETERED ELECTRIC SERVICE PLAQUE REQUIREMENTS. 1/2” 1/2” FIGURE 1 TYPICAL PLAQUE CONFIGURATION INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. THE PLAQUE SHALL BE PLASTIC WITH ENGRAVED OR MACHINE PRINTED LETTERS IN CONTRASTING COLOR TO THE PLAQUE AND SHALL BE PERMANENTLY ATTACHED TO THE FUSE BOX WITH POP RIVETS OR SCREWS. REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 F B EDITORIAL CHANGES PEI/EDM IPJ IPJ CZH 08/10/2021 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG524.3 3 OF 7 UNMETERED ELECTRIC SERVICE PLAQUE REQUIREMENTS

SCOPE: THIS STANDARD SHOWS AND DESCRIBES THE INSTALLATION OF A CUSTOMER-OWNED FUSED SERVICE POLE. THIS INSTALLATION IS SUBJECT TO ALL REQUIREMENTS OF AND INSPECTION BY, THE AHJ AND SDG&E (UTILITY). 5” MIN. 1 F K P B C I 6’-0” MIN. SERVICE POINT OF ATTACHMENT 3 A L 3’-0” 6 S Q T 4 M 2 U C 9 11 M M F G 5 O 6’-3” MAX. 4’-0” MIN. GROUND LINE 7 8 L W Y R A A 10 FIGURE 1 FIGURE 1 POLE DEPTH CONDUIT VIEW A-A © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 F B EDITORIAL CHANGES PEI/EDM IPJ IPJ CZH 08/10/2021 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG524.4 4 OF 7 UNMETERED ELECTRIC SERVICE ON CUSTOMER-OWNED SERVICE POLE

METHOD 1 METHOD 2 METHOD 3 IMPREGNATED FIBER WOOD MOULDING OF BOXING OF WOOD CONDUIT OF 1/4” 1 1/2” MINIMUM OF 1 1/2” MINIMUM Z MINIMUM THICKNESS THICKNESS THICKNESS FIGURE 2 ALTERNATE METHODS N INSTALLATION: A THESE ARE MINIMUM REQUIREMENTS FOR A PERMANENT CUSTOMER-OWNED FUSED SERVICE POLES. B POLE LOCATION: THE POLE SHALL BE SET NOT MORE THAN 100 FEET, OR LESS THAN 10 FEET, FROM THE SURFACE OF THE UTILITY’S SERVICE POLE AND SO LOCATED THAT ALL REQUIRED SERVICE DROP CLEARANCES WILL BE OBTAINED FROM GROUND, BUILDINGS, AND STRUCTURES. C TABLE 2 SERVICE DROP MINIMUM CLEARANCES LOCATION MIN. CLEARANCE (FT) E AT CENTER OF STREET OR 12’-0” FROM CURB, WHICHEVER IS LESS 18 AT CURB LINE 16 OVER COMMERCIAL OR INDUSTRIAL DRIVEWAYS, PARKING AREAS, OR AREAS 16 CAPABLE OF BEING TRAVERSED BY VEHICLES OVER RESIDENTIAL DRIVEWAYS 12 D OVER AGRICULTURAL AREAS 15 OVER RAILROADS OR FOR OTHER SPECIAL CONDITIONS CONSULT THE UTILITY’S PLANNER D MAY BE REDUCED TO 10 FEET IF SELF-SUPPORTING CABLE (SSC) SERVICE. THE UTILITY WILL USE SSC. THE TYPE OF CONSTRUCTION USE BY THE CUSTOMER IS THEIR OPTION.

E WHERE CLEARANCES CANNOT BE OBTAINED WITH THE 25-FOOT POLE SHOWN, A 35-FOOT MAXIMUM POLE SHALL BE USED. F REFER TO SHEETS 1-5 FOR SPECIFICATIONS FOR INSTALLING CUSTOMER-OWNED AND INSTALLED WIRELESS COMMUNICATIONS ANTENNAS. G ALL CUSTOMER EQUIPMENT SHALL HAVE AN IDENTIFYING PLAQUE INDICATING CUSTOMER NAME, ADDRESS, OPERATION’S PHONE NUMBER, UM IDENTIFICATION NUMBER AND FUSE SIZE. THE PLAQUE SHALL BE PLASTIC WITH ENGRAVED OR MACHINE PRINTED LETTERS IN CONTRASTING COLOR TO THE PLAQUE AND SHALL BE PERMANENTLY ATTACHED TO THE FUSE BOX WITH POP RIVETS OR SCREWS. REFER TO SHEET 3 FOR TYPICAL PLAQUE CONFIGURATION. H. PERMIT AND INSPECTION MUST BE OBTAINED FROM THE AHJ BEFORE SERVICE WILL BE CONNECTED BY THE UTILITY. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 F B EDITORIAL CHANGES PEI/EDM IPJ IPJ CZH 08/10/2021 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D

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INSTALLATION (CONT’D): J. CONSULT THE UTILITY’S PLANNER FOR SERVICE REQUIREMENTS WHENEVER THREE PHASE SERVICE IS DESIRED. K THE UTILITY WILL FURNISH AND INSTALL THE SERVICE DROP AND SERVICE DROP RACK OR WIRE HOLDERS. ALL OTHER EQUIPMENT, INCLUDING POLE, SHALL BE FURNISHED AND INSTALLED BY THE CUSTOMER. L THE CUSTOMER IS TO DIG THE HOLE IN NATURAL SOIL. BACKFILL MUST BE COMPACTED TO 90% MINIMUM WITHIN A 5-FOOT RADIUS OF THE POLE. POLE DEPTH WILL BE CONFIRMED BY INSERTION OF A GROUND ROD OR SIMILAR PROBE INTO THE PVC DEPTH CONDUIT ATTACHED TO THE CLIMBABLE POLE. INSTALL A REMOVABLE CAP ON TOP OF THE DEPTH CONDUIT TO PREVENT FALLING DEBRIS FROM ENTERING THE CONDUIT. M ALL CONDUIT FITTINGS MUST BE RAINTIGHT. APPROVED WIRE, NOT LESS THAN 8 AWG, SHALL BE USED IN THE SERVICE ENTRANCE CONDUIT. N COVERING TO BE STRAPPED TO THE POLE WITH GALVANIZED TWO-HOLE PIPE STRAPS SPACED NOT TO EXCEED 3 FEET APART. O THE SERVICE GROUND IS TO COMPLY WITH ALL APPLICABLE CODES AND ORDINANCES AND BE MECHANICALLY PROTECTED IN COMPLIANCE WITH G.O. 95 PER ONE OF THE FOLLOWING METHODS: 1.

ENCASED IN RIGID STEEL CONDUIT 2. MINIMUM NO. 8 AWG ARMORED COPPER GROUND WIRE 3. COVERED BY A MINIMUM OF ONE OF THE FOLLOWING: HARDWOOD MOLDING (OF OAK OR ROCK ELM) 3/8” IN THICKNESS DOUGLAS FIR MOLDING 1/2” IN THICKNESS RIGID CONDUIT OR RIGID U-SHAPE MOLDING OF A MINIMUM SCHEDULE 40 PVC POLY-PROTECTED GROUND WIRE P CUSTOMER TO WIRE OUT 3 FEET BELOW TOP OF POLE. Q PROVIDE AT LEAST 18 INCHES OF WIRE OUTSIDE OF SERVICE HEAD. R TABLE 1 POLE SETTING DEPTH POLE HEIGHT (FT) SETTING DEPTH 25 5’-0” 30 5’-6” 35 5’-6” S BOLT WOOD BLOCKS TO POLE IN 1/2-INCH GAINS. BLOCK NOT REQUIRED FOR SCHEDULE 40 PVC PLASTIC CONDUIT RUNS. T EXTEND PROTECTIVE COVERING OVER METALLIC CONDUITS TO BOTTOM OF SERVICE HEADS. DO NOT LEAVE CONDUITS EXPOSED. U INSTALL STRAPS BELOW FIBER CONDUITS TO PREVENT SLIPPING. W CAPPED ON THE BOTTOM AND STRAPPED TO THE POLE Y WHEN CUSTOMER’S LOAD CONDUCTORS ARE UNDERGROUND, INSTALL CONDUIT AS INDICATED BY DASHED LINES. Z COVER IS TO BE NAILED TO SIDE PIECES. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 F B EDITORIAL CHANGES PEI/EDM IPJ IPJ CZH 08/10/2021 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG524.6 6 OF 7 UNMETERED ELECTRIC SERVICE ON CUSTOMER-OWNED SERVICE POLE

BILL OF MATERIALS: STANDARD STOCK DESIGN ITEM DESCRIPTION QUANTITY PAGE NUMBER UNITS 1 ANTENNA -- -- -- 2 STRAP, PIPE -- -- -- 3 POLE, TREATED, FULL LENGTH ROUND, 25'-0” CLASS 5 MIN. -- -- -- PVC, SCHEDULE 40, PLASTIC (PREFERRED) 4 CONDUIT, SERVICE ENTRANCE -- -- -- IRON, RIGID, GALV. 3/4'' MIN. WITH PROTECTIVE COVERING (ALTERNATE) 5 FUSE BOX, CUSTOMER-OWNED AS REQ’D -- -- -- 6 WOOD BLOCK, 4'' X 4'' X 6'' -- -- -- 7 REMOVABLE CAP -- -- -- 8 CONDUIT, PVC, SCHEDULE 40, 6'-0'', 3/4'', POLE DEPTH -- -- -- 9 EQUIPMENT, CUSTOMER-OWNED -- -- -- 10 CONDUIT CAP -- -- -- 11 PLAQUE, IDENTIFICATION, UM SH 3 -- -- NOTES: I MAXIMUM LENGTH OF SERVICE DROP SPAN SHALL BE 100 FEET. REFERENCE: a. SEE OH645 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES EDM IWA JTM KRG 02/07/2025 F B EDITORIAL CHANGES PEI/EDM IPJ IPJ CZH 08/10/2021 E A EDITORIAL CHANGES - LSM BRB TPM 11/01/2017 D

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SCOPE: THIS STANDARD PROVIDES DIRECTION FOR ESTABLISHING EFFECTIVE METERING COMMUNICATIONS WHEN A METER LOCATION DOES NOT FACILITATE STANDARD “SMART METER” COMMUNICATION METHODS. ATTENTION: * SMART METERING OPERATIONS (SMO) REQUIREMENTS FOR TYPE, PLACEMENT, AND QUANTITY OF SMART METER NETWORK DEVICES WILL VARY ACCORDING TO THE CONSTRUCTION AND LOCATION OF METERS THROUGHOUT THE CUSTOMER’S PREMISES, SO EACH PREMISE MUST BE EVALUATED BY SDG&E (UTILITY) ON A CASE-BY-CASE BASIS. ** FOR NETWORK DEVICE PLACEMENT, CONTACT THE NETWORK DEVICE TEAM VIA EMAIL AT NETWORKDEVICE@SEMPRAUTILITIES.COM. *** WHEN NEW CONSTRUCTION HAS COMMENCED, PROJECT MANAGEMENT SHALL PROVIDE NOTIFICATION OF NEW CONSTRUCTION TO THE SMART METER NETWORK EXPANSION TEAM AT SMARTMETERNETWORKEXPANSION@SEMPRAUTILITIES.COM. INSTALLATION: A. NETWORK DEVICE WITH CUSTOMER POWER SOURCE: 1. WHERE THE CUSTOMER WILL ALLOW THE UTILITY-OWNED SMART METER NETWORK DEVICES INSTALLED ON THE CUSTOMER PREMISES AND WILL PROVIDE POWER OUTLETS FOR THESE NETWORK DEVICES, THE REQUIREMENT FOR A COMMUNICATION CONDUIT CAN BE WAIVED. 2.

THE POWER OUTLETS TO SUPPORT NETWORK DEVICES SHALL BE INSTALLED AT LOCATIONS DESIGNATED BY THE UTILITY’S METER AND NETWORK OPERATIONS PERSONNEL. FOR EACH LOCATION WITH ONE OR MORE NETWORK DEVICES, A 2-WIRE 120V AC POWER OUTLET SHALL BE CO-LOCATED. THE NETWORK DEVICE WILL BE INSTALLED WITH A HARD WIRE CONNECTION TO THE POWER OUTLET. THE POWER OUTLET CAN BE LOCATED ANYWHERE A CONDUIT CAN BE RUN FROM THE POWER OUTLET TO THE NETWORK DEVICE POWER SUPPLY. B. NETWORK DEVICE WITHOUT CUSTOMER POWER SOURCE: WHERE THE CUSTOMER WILL ALLOW THE UTILITY-OWNED SMART METER NETWORK DEVICES INSTALLED ON THE CUSTOMER PREMISE AND WILL NOT PROVIDE POWER OUTLETS FOR THESE NETWORK DEVICES, SMO HAS SPECIFIC COMMUNICATION CONDUIT REQUIREMENTS THAT MUST BE MET IN ORDER TO PROCEED. CONTACT WITH SMO MUST BE MADE PRIOR TO CONSTRUCTION IN ORDER TO OBTAIN THE SPECIFIC REQUIREMENTS AND APPLY THEM TO THE CUSTOMER’S ELECTRICAL CONDUIT INSTALLATION. BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 02/07/2025 E A NEW PAGE - LSM BRB TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG525.1 1 OF 1 METERING COMMUNICATIONS

PAGE SUBJECT 602 MEDIUM VOLTAGE ELECTRIC SERVICE AND METERING EQUIPMENT ALPHABETICAL SUBJECT INDEX 603 GENERAL INFORMATION 604 MEDIUM-VOLTAGE METERING CUBICLE 605 CONTROL POWER TRANSFORMER METERING 606 INDOOR CURRENT TRANSFORMER DIMENSIONS 607 INSTRUMENT TRANSFORMER MOUNTING SPECIFICATIONS 608 SWITCHGEAR UNDERGROUND SERVICE TERMINATING PULL SECTION 609 12KV SERVICE POINT CONNECTION FOR TROLLEY TRACTION STATION © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 11/15/2024 E A NEW PAGE - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG601.1 1 OF 1 MEDIUM VOLTAGE ELECTRIC SERVICE AND METERING EQUIPMENT TABLE OF CONTENTS

SUBJECT PAGE AUXILIARY EQUIPMENT CONNECTED AHEAD OF SERVICE MAIN.............................................................................................. 603.2 BASIC LIGHTNING IMPULSE INSULATION LEVEL (BIL) RATING................................................................................................ 603.4 BUS DIMENSION.................................................................................................................................................................. 603.4 BUS MATERIAL..................................................................................................................................................................... 603.4 BUS TAP DRAWINGS FOR APPROVAL..................................................................................................................................... 603.3 CONDUCTORS PASSING THROUGH COMPARTMENT WALLS..................................................................................................... 603.4

CONTROL POWER TRANSFORMER (CPT) METER WIRING DIAGRAM............................................................................................ 605 CURRENT AND VOLTAGE TRANSFORMER INSTALLATION........................................................................................................ 603.4 CURRENT TRANSFORMER, INDOOR, DIMENSIONS..................................................................................................................... 606 CURRENT TRANSFORMERS AND BUS LINK............................................................................................................................. 603.5 DOOR ACCESS TO METERING CUBICLES................................................................................................................................ 603.4 ENGINEERING SPECIFICATIONS............................................................................................................................................ 603.1

FUSE SPECIFICATION........................................................................................................................................................... 603.5 INSTRUMENT TRANSFORMER MOUNTING....................................................................................................................... 603.5, 607 MAIN SERVICE AND METER DISCONNECT.............................................................................................................................. 603.1 MANUFACTURER’S DRAWINGS FOR APPROVAL....................................................................................................................... 603.1 MEDIUM-VOLTAGE METERING CUBICLE.................................................................................................................................... 604 ENCLOSURE DIMENSIONS............................................................................................................................................. 604.2

FIELD MAINTENANCE ONLY................................................................................................................................. FMO SG604 METER PANEL LAYOUT.................................................................................................................................................. 604.4 METERING CUBICLE...................................................................................................................................................... 604.1 PAD LAYOUT................................................................................................................................................................ 604.1 TEST SWITCH LAYOUT.................................................................................................................................................. 604.5 METER PANEL...................................................................................................................................................................... 603.4

PHASE TAPS PROTECTING FUSES AND VOLTAGE TRANSFORMERS.......................................................................................... 603.5 SAFETY GROUNDING PROVISIONS........................................................................................................................................ 603.3 © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 11/15/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG602.1 1 OF 2 MEDIUM VOLTAGE ELECTRIC SERVICE AND METERING EQUIPMENT ALPHABETICAL SUBJECT INDEX

SUBJECT PAGE SERVICE POINT CONNECTION FOR 12KV TROLLEY TRACTION STATION..................................................................................... 609 SWITCHGEAR UNDERGROUND SERVICE TERMINATING PULL SECTION............................................................................. 603.1, 608 UTILITY COMPARTMENT LABELING....................................................................................................................................... 603.3 VENTILATION...................................................................................................................................................................... 603.4 VOLTAGE TRANSFORMER DISCONNECT REQUIREMENTS........................................................................................................ 603.5 VOLTAGE TRANSFORMER FUSE SPECIFICATION..................................................................................................................... 603.5

WEATHERPROOFING AND LOCKING...................................................................................................................................... 603.4 WORKING SPACE FOR MEDIUM-VOLTAGE SWITCHGEAR......................................................................................................... 603.3 © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 11/15/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG602.2 2 OF 2 MEDIUM VOLTAGE ELECTRIC SERVICE AND METERING EQUIPMENT ALPHABETICAL SUBJECT INDEX

SCOPE: THIS STANDARD PROVIDES GENERAL INFORMATION ON MEDIUM VOLTAGE ELECTRIC SERVICE AND METERING EQUIPMENT. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. ENGINEERING SPECIFICATIONS: a. SDG&E (UTILITY) WILL ISSUE SPECIFICATIONS FOR EACH MEDIUM VOLTAGE SERVICE INSTALLATION. THESE SPECIFICATIONS WILL BE BASED ON THE APPLICATION FOR SERVICE, THE ELECTRICAL LOAD, SERVICE VOLTAGE PLANS AS REQUESTED BY THE CUSTOMER AND THE SERVICE RULES OF THE UTILITY. THE UTILITY’S PLANNER MAY APPROVE MEDIUM VOLTAGE SERVICE AND METERING EQUIPMENT IN AN ELECTRIC METER ROOM PROVIDED ALL REQUIREMENTS ON SG506 ARE MET. a b. THE INSTALLATION SHALL COMPLY WITH ALL APPLICABLE RULES OF THE CALIFORNIA ELECTRICAL CODE AND OTHER GOVERNING CODES AND ORDINANCES. II. MANUFACTURER'S DRAWINGS FOR APPROVAL: a. THE MANUFACTURER OF MEDIUM-VOLTAGE SWITCHGEAR FOR A CUSTOMER'S SERVICE SHALL SUBMIT DRAWINGS ELECTRONICALLY TO SDG&E SERVICE STANDARDS FOR APPROVAL PRIOR TO FABRICATION. THE DRAWINGS MUST SHOW THE SERVICE CABLE TERMINATING SECTION, THE MAIN BREAKER, OR SWITCH SECTION AND THE METERING CUBICLE. SEND

DRAWINGS TO (DRAWINGSUBMITTALS@SDGE.COM). b. THE JOB ADDRESS MUST BE SHOWN ON DRAWINGS FOR REVIEW AND APPROVAL. NOTIFICATION WILL BE SENT TO THE SENDER WITH APPROVALS OR CORRECTIONS AS NEEDED. WHEN A PARALLEL, STAND-BY OR EMERGENCY GENERATION SYSTEM IS EXISTING OR IS TO BE INSTALLED IN CONNECTION WITH NEW MEDIUM VOLTAGE SERVICE EQUIPMENT, A ONE-LINE ELECTRICAL DIAGRAM SHOWING THE RELATIONSHIP OF THE GENERATOR WITH THE SERVICE EQUIPMENT, INCLUDING THE TRANSFER DEVICE AND ITS SEQUENCE OF OPERATION, IS TO BE SUBMITTED WITH THE SWITCHGEAR DRAWINGS. THE ELECTRICAL ONE-LINE DIAGRAM SUBMITTAL REQUIREMENT APPLIES TO ALL MEDIUM VOLTAGE SERVICE. c. THIS PRACTICE WILL ENSURE YOUR SERVICE EQUIPMENT MEETS ALL OF THE UTILITY’S REQUIREMENTS AND IS ACCEPTABLE FOR INSTALLATION. d. APPROVALS ARE VALID FOR 3 YEARS. AFTER 3 YEARS FROM DATE OF APPROVAL, RESUBMITTAL OF SWITCHGEAR DRAWINGS DIRECTLY FROM THE MANUFACTURER WILL BE REQUIRED FOR REVIEW AND APPROVAL. III. SWITCHGEAR UNDERGROUND SERVICE-TERMINATING PULL SECTION: a.

ALL SWITCHGEAR TO WHICH MEDIUM VOLTAGE SERVICE IS TO BE SUPPLIED BY THE UTILITY SHALL BE EQUIPPED WITH A "SEPARATE, FULLY ENCLOSED" SWITCHGEAR UNDERGROUND SERVICE-TERMINATING PULL SECTION (UGPS). SPACE WILL BE PROVIDED FOR THE SUPPORT AND CONNECTION OF THE SERVICE CABLES TO A BUSSED SECTION WHICH HAS STANDARD NEMA DRILLINGS FOR TWO-HOLE TERMINATION LUGS. THE UTILITY WILL SPECIFY THE NUMBER OF CABLES THEY WILL INSTALL AND TERMINATE IN THE UGPS. THE UTILITY WILL FURNISH AND INSTALL THE TERMINATING LUGS. b b. THE SERVICE CABLE TERMINATING UGPS SHALL HAVE A FULL-HEIGHT HINGED DOOR THAT IS SEALABLE AND PAD-LOCKABLE. IV. MAIN SERVICE AND METER DISCONNECT: a. THE MANUFACTURER OR CONTRACTOR SHALL FURNISH AND INSTALL A SINGLE MAIN SERVICE AND METER DISCONNECT FOR EACH MEDIUM VOLTAGE SERVICE. THIS MAIN SERVICE AND METER DISCONNECT SHALL CONTROL ALL OF AND ONLY THE ENERGY CARRIED BY THE SERVICE AND REGISTERED BY THE MEDIUM-VOLTAGE METERING EQUIPMENT. b. THE SERVICE AND METER DISCONNECT SHALL COORDINATE ELECTRICALLY WITH THE UTILITY AND BE INSTALLED AND

CONNECTED TO THE SERVICE ON THE SUPPLY (LINE) SIDE OF THE METERING EQUIPMENT. THIS IS REFERRED TO AS “COLD SEQUENCE METERING”. GROUNDING SWITCHES SHALL NOT BE PERMITTED IN BETWEEN UTILITY PULL SECTION AND MAIN DISCONNECT. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM JTM IWA KRG 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A EDITORIAL CHANGES - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG603.1 1 OF 6 GENERAL INFORMATION

NOTES (CONT’D): IV. MAIN SERVICE AND METER DISCONNECT(CONT’D): c. THE CUSTOMER WILL PROVIDE, OWN AND MAINTAIN THEIR PREMISES DISTRIBUTION SYSTEM WHICH IS REQUIRED TO COORDINATE ELECTRICALLY WITH THE UTILITY’S SYSTEM, AND THEY WILL PROVIDE A ONE-LINE DIAGRAM OF THE MEDIUM VOLTAGE SERVICE EQUIPMENT. THIS APPLIES TO BOTH NEW SWITCHGEAR AND MODIFICATIONS TO EXISTING SWITCHGEAR. d. A MAIN BREAKER WITH PHASE AND GROUND RELAYS IS REQUIRED IF THE CUSTOMER DEMAND IS 2,500KW, OR ABOVE. AT THE UTILITY’S OPTION, A BREAKER MAY BE REQUIRED FOR LESSER DEMANDS TO ENSURE COORDINATION WITH THE UTILITY’S PROTECTIVE DEVICES, WHICH INCLUDES AUTOMATED SECTIONALIZING DEVICES SUCH AS SERVICE RESTORERS. e. IF A MULTIFUNCTION PROTECTIVE RELAY (E.G., MICROPROCESSOR, SOLID STATE, ETC.) IS USED TO PROTECT CUSTOMER'S SWITCHGEAR, THEN A REDUNDANT PROTECTION SYSTEM MUST BE INSTALLED (E.G., TWO MULTIFUNCTION PROTECTIVE RELAYS IN PARALLEL). THE REASON FOR THIS REQUIREMENT IS A FAILURE OF AN INTERNAL COMPONENT(S) (SUCH AS A

POWER SUPPLY, RAM, ROM, A/D CONVERTER, ETC.) MAY DISABLE ALL PROTECTION FUNCTIONS WITHIN THE PROTECTIVE RELAY. f. WHEN BREAKER PROTECTION IS PROVIDED, THE CUSTOMER WILL INFORM THE UTILITY OF THE BREAKER MANUFACTURER, TYPE, SIZE, CURRENT TRANSFORMER (CT) RATIOS, PROTECTIVE RELAY MANUFACTURER, ANSI FUNCTIONS AND INSTANTANEOUS TRIP CURRENT VALUES, ETC. g. THE PROTECTIVE RELAY SETTINGS MUST BE APPROVED AND A WRITTEN TEST REPORT RECEIVED BY THE UTILITY’S PROTECTION ENGINEER BEFORE THE CUSTOMER'S SERVICE IS ENERGIZED. h. WHEN A SERVICE DISCONNECT WITH FUSED PROTECTION IS PROVIDED, THE CUSTOMER WILL INFORM THE UTILITY OF THE FUSE MANUFACTURER, TYPE, AMPACITY AND TIME CURRENT CURVES (TCC) FOR REVIEW AND APPROVAL. THE CUSTOMER WILL PERMANENTLY LABEL THE UTILITY-APPROVED FUSE SIZE AND TYPE ON THE DISCONNECT COVER PRIOR TO THE UTILITY ENERGIZING THE SERVICE. A PERMANENT PLAQUE SHALL BE AFFIXED TO THE DISCONNECT COVER STATING: DO NOT INCREASE FUSE SIZE, TYPE OF FUSE OR MANUFACTURER WITHOUT OBTAINING PERMISSION FROM SDG&E. V. AUXILIARY EQUIPMENT CONNECTED AHEAD OF SERVICE MAIN: a.

VOLTAGE TRANSFORMERS (VTS) MAY BE INSTALLED ON THE SUPPLY SIDE OF THE MAIN SERVICE BREAKER FOR VOLTAGE INDICATION AND PROTECTIVE RELAYS. b. COGENERATION AND OTHER POWER PRODUCTION SOURCES INTERCONNECTED DIRECTLY WITH THE UTILITY MAY REQUIRE CONTROL POWER CONDUITS FOR COMMUNICATION AND/OR HIGH-END METERING. PLEASE REFER TO THE GENERATION HANDBOOK. c. A CONTROL POWER TRANSFORMER (CPT) USED EXCLUSIVELY FOR THE PROTECTIVE RELAYS AND THE CONTROL CIRCUIT OF THE MAIN SERVICE BREAKER ONLY MAY BE INSTALLED ON THE SUPPLY SIDE OF THE BREAKER WITHOUT THE REQUIREMENT FOR A SEPARATE 4- OR 7-CLIP METER SOCKET. d. WHERE A CPT IS REQUIRED FOR AC CONTROL CIRCUITS, SPACE HEATING, LIGHTING AND OTHER INCIDENTAL USE WITHIN THE SWITCHGEAR, THE CPT MAY BE INSTALLED IN THE SWITCHGEAR AND CONNECTED TO THE SUPPLY SIDE OF THE SERVICE BREAKER. THE CPT SECONDARY LOAD SIDE WILL BE SEPARATELY METERED. THE CPT SECONDARY LEADS SHALL BE TAKEN THROUGH TEST BLOCKS TO A 4- OR 7-CLIP METER SOCKET LOCATED ON THE DOOR ABOVE THE MAIN SERVICE 15-CLIP METER SOCKET. c e. AC POWER MAY BE USED FOR BREAKER CONTROL.

A CAPACITOR POTENTIAL DEVICE SHALL BE USED WITH A REDUNDANT ENERGY SOURCE, E.G. DEVICE MOUNTED BATTERIES OR UNINTERRUPTABLE POWER SUPPLY (UPS). f. REDUNDANT CONTROL POWER FOR OPERATING PROTECTIVE RELAYS MUST BE SUPPLIED THAT PROVIDES 72 HOURS MINIMUM SUFFICIENT POWER FOR TRIPPING OPERATIONS. g. VISIBLE INDICATION OF SUFFICIENT CHARGE FOR OPERATING THE SERVICE BREAKER TRIP COIL MUST BE AVAILABLE FROM THE REDUNDANT CONTROL POWER SYSTEM. h. NEW REDUNDANT SOURCES OF ENERGY NOT SPECIFICALLY MENTIONED IN THIS STANDARD MAY BE SUBMITTED ELECTRONICALLY TO SDG&E SERVICE STANDARDS FOR REVIEW AND APPROVAL AT (DRAWINGSUBMITTALS@SDGE.COM). © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM JTM IWA KRG 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A EDITORIAL CHANGES - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG603.2 2 OF 6 GENERAL INFORMATION

NOTES (CONT’D): VI. BUS TAP DRAWINGS FOR APPROVAL: a. BUS TAPS AHEAD OF THE MAIN SERVICE AND METER DISCONNECT ARE NOT PERMITTED EXCEPT AS SPECIFIED UNDER “AUXILIARY EQUIPMENT CONNECTED AHEAD OF SERVICE MAIN” ABOVE. PROPOSED LOAD SIDE OF METERING BUS TAPS AHEAD OF THE LOAD SIDE MAIN DISCONNECT REQUIRE UTILITY APPROVAL. PRIOR TO CONSTRUCTION, SUBMIT THE TAP DRAWING WITH A ONE-LINE DIAGRAM OF THE SWITCHGEAR ELECTRONICALLY TO SDG&E SERVICE STANDARDS AT (DRAWINGSUBMITTALS@SDGE.COM). b. THE BUS TAP DRAWING MUST BE PREPARED BY A QUALIFIED ENGINEER, AND THE ONE-LINE DIAGRAM MUST SHOW THE TAP LOCATION IN THE SWITCHGEAR LINEUP. THE JOB ADDRESS MUST BE SHOWN ON THE DRAWINGS IN ORDER TO PROCESS. c. THE CUSTOMER’S MODIFIED SYSTEM MUST COORDINATE ELECTRICALLY WITH THE UTILITY’S SYSTEM. BOTH THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) AND THE UTILITY WILL INSPECT THE BUS TAP, AND THE UTILITY MUST RECEIVE INSPECTION CLEARANCE FROM THE AHJ AS A CONDITION OF ENERGIZING. d. AN ACCEPTABLE SERVICE DISCONNECT WITH STANDARD ACCESS AND WORKING SPACE IS REQUIRED ON THE TAP IN

IMMEDIATE PROXIMITY TO THE MAIN SWITCHGEAR. VII. WORKING SPACE FOR MEDIUM-VOLTAGE SWITCHGEAR: a. MEDIUM-VOLTAGE SWITCHGEAR SHALL IN EVERY CASE (INDOOR OR OUTDOOR) BE INSTALLED WITH AT LEAST 5 FEET OF CLEAR, LEVEL AND UNOBSTRUCTED WORKING SPACE IN THE FRONT, REAR AND SIDES OF ALL SECTIONS THAT SUPPORT OR PROVIDE ACCESS TO METERING, VTS, CTS, GROUNDING BALL STUDS OR TESTING EQUIPMENT. b. A MINIMUM OF 8 FEET CLEAR, LEVEL AND UNOBSTRUCTED WORKING SPACE IN FRONT OF THE UGPS IS REQUIRED. FRONT IS DEFINED AS THE SECTION COVER THAT PROVIDES ACCESS TO THE UTILITY LANDING POSITION TERMINATION POINTS AND GROUNDING BALL STUDS. c. BECAUSE ACCESS IS REQUIRED TO BOTH THE FRONT AND REAR OF THE SWITCHGEAR, A WALKWAY OF AT LEAST 2 FEET WIDE SHALL BE PROVIDED AROUND ONE END OF THE MEDIUM VOLTAGE SERVICE AND METERING EQUIPMENT. (THIS APPLIES WHEN THE 5-FOOT WORKING SPACE PROVISION ABOVE IS NOT REQUIRED IN FRONT OF THE END SECTION.) d. TO MAINTAIN A SAFE, CLEAR AND LEVEL PERMANENT WORKING AREA IN FRONT OF NEW OR EXISTING METER AND SERVICE

EQUIPMENT, A CONCRETE SLAB, ACCEPTABLE TO THE UTILITY INSPECTOR, IS REQUIRED. THE SLOPE OF THE WORKING SPACE FOR DRAINAGE IS NOT TO EXCEED 1/4 INCH PER FOOT SLOPING AWAY FROM THE EQUIPMENT. UTILITY COMPARTMENT LABELING: COMPARTMENTS OF THE METERING ENCLOSURE SHALL BE PERMANENTLY LABELED WITH MACHINE-ENGRAVED LAMINATED UV STABILIZED PLASTIC TAGS. THE LABELING SHALL BE QUARTER-INCH WHITE LETTERS AND NUMBERS ON RED-COLORED MATERIAL WHICH IS READILY VISIBLE AND MECHANICALLY ATTACHED TO THE FACE OF THE FOLLOWING DESIGNATED COMPARTMENTS SHALL BE WORDED AS FOLLOWS: a. UTILITY VOLTAGE TRANSFORMER COMPARTMENT b. UTILITY VOLTAGE TRANSFORMER FUSE COMPARTMENT c. UTILITY CURRENT TRANSFORMER COMPARTMENT d. UTILITY SERVICE TERMINATION COMPARTMENT e. UTILITY METERING PANEL IX. SAFETY GROUNDING PROVISIONS: THE BARE BUS 4 INCHES ABOVE AND BELOW THE CT SHALL BE PROVIDED TO PERMIT APPLICATION OF UTILITY MEDIUM-VOLTAGE WORKER’S SAFETY GROUNDS. GROUNDING BALL STUDS SHALL BE PROVIDED ON THE LINE AND LOAD SIDE OF THE BUS AT EACH CT LOCATION. © 1998 - 2024 San Diego Gas & Electric Company.

All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM JTM IWA KRG 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A EDITORIAL CHANGES - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG603.3 3 OF 6 GENERAL INFORMATION

NOTES (CONT’D): XI. METER PANEL: a. THE UTILITY WILL INFORM THE MANUFACTURER OF THE METER PANEL LAYOUT FOR THE MEDIUM-VOLTAGE METERING CUBICLE. b. THE METER PANEL AND HINGES ARE TO BE DESIGNED TO ADEQUATELY SUPPORT A 25-POUND LOAD APPLIED AT THE UNSUPPORTED END WITH 1/8 INCH MAXIMUM SAG WHEN OPEN. A #4 AWG FLEXIBLE BRAIDED BOND WIRE SHALL BE INSTALLED ACROSS THE HINGES. XII. BASIC LIGHTNING IMPULSE INSULATION LEVEL (BIL) RATING: BIL FOR THE METERING ENCLOSURE SHALL BE NOT LESS THAN THE BIL RATING FOR THE CUSTOMER'S ASSOCIATED SWITCHGEAR. REFERENCE SHALL BE MADE TO ANSI STANDARDS FOR THE MINIMUM ACCEPTED BIL RATINGS FOR MEDIUM-VOLTAGE SWITCHGEAR BUILT TO THE LISTED NOMINAL VOLTAGE AS SHOWN IN THE REFERENCED TABLES. e f C VENTILATION: VENTILATION OPENINGS SHALL BE PROVIDED AS PER ANSI STANDARDS, AND SHALL BE LOUVERED OR SCREENED AND BE GUARDED WITH INTERNAL BARRIERS TO PREVENT ACCESS TO ENERGIZED PARTS. XIV.DOOR ACCESS TO METERING CUBICLES: A FULL-HEIGHT HINGED DOOR WITH A 3-POINT LOCKING MECHANISM AND PROVISIONS FOR A UTILITY-FURNISHED PADLOCK IS REQUIRED. XV.

WEATHERPROOFING AND LOCKING: a. THE REFERENCED ENCLOSURE DOORS SHALL BE DESIGNED TO BE SECURE IN THE OPEN POSITION 90-DEGREES OR MORE. d b. THE METER PANEL SHALL BE HINGED ON THE OPPOSITE SIDE OF THE OUTER DOOR ON THE WEATHERPROOF UNITS TO PERMIT 90-DEGREE OPENING WITH THE METERS AND TEST FACILITIES IN PLACE. OMIT THE WEATHERPROOF DOORS IF THE EQUIPMENT IS LOCATED INDOORS. c. IF THE OUTER DOOR IS OMITTED, FURNISH A LOCKABLE METER PANEL. THE FRONT AND REAR WEATHERPROOF DOORS SHALL BE SINGLE DOORS EQUIPPED WITH A LATCH-TYPE HANDLE FOR A UTILITY PADLOCK. XVI. CURRENT AND VOLTAGE TRANSFORMER INSTALLATION: CT’S, VTs, METERS, TESTING FACILITIES AND ALL SECONDARY WIRING FROM THE TRANSFORMERS TO THE METERS WILL BE FURNISHED AND INSTALLED BY THE UTILITY. BUS MATERIAL: ALL COPPER OR ALUMINUM BUS USED IN THE METERING ENCLOSURE SHALL BE TIN OR SILVER-PLATED TO PREVENT THE CORROSION OF THE UTILITY-SUPPLIED CTS AT THE CONNECTION POINTS TO THE BUS. THIS SHALL ALSO INCLUDE THE CT MOUNTING HARDWARE – BOLTS, WASHERS AND NUTS. BUS DIMENSION: THE MAXIMUM BUS SIZE SHALL BE 3/8” X 4”.

MINIMUM BUS SIZE SHALL BE 1/4” X 2” UNLESS OTHERWISE INDICATED ON SPECIFIC DRAWING. A BUS SIZE OUTSIDE THESE LIMITS REQUIRES SPECIAL ENGINEERING AND CONSULTATION WITH THE UTILITY. XIX. CONDUCTORS PASSING THROUGH COMPARTMENT WALLS: WHERE CABLE OR BUSSES PASS THROUGH COMPARTMENT WALLS, THROUGH-THE-WALL BUSHINGS WITH FULL VOLTAGE RATING ON THE SWITCHGEAR MUST BE USED. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM JTM IWA KRG 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A EDITORIAL CHANGES - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG603.4 4 OF 6 GENERAL INFORMATION

NOTES (CONT’D): XX. PHASE TAPS FOR FUSES PROTECTING VOLTAGE TRANSFORMERS: BUSSED THROUGH-WALL INSULATORS FOR PHASE VT TAPS ARE TO BE FURNISHED WITH LUGS ON THE VT COMPARTMENT SIDE. CABLE OR BUS CONDUCTOR SHALL BE FURNISHED FOR THE TAP TO THE FUSE CARRIAGE AND TO THE VT COMPARTMENT MAINTAINING BARE BUS CLEARANCE. MECHANICAL LUGS (EQUAL TO ILSCO TA-2) FOR #6 BARE COPPER WIRE SHALL BE PROVIDED ON THE LOAD SIDE OF THE FUSE CARRIAGE CONNECTING TO THE VTS. ONE MECHANICAL LUG (EQUAL TO ILSCO TA-2) FOR #6 BARE COPPER WIRE SHALL BE PROVIDED ON THE GROUND BUS FOR CONNECTING TO THE VTS. CONDUCTORS BY SDG&E XXI.VOLTAGE TRANSFORMER FUSE SPECIFICATION: VT FUSES SHALL BE FURNISHED AND INSTALLED BY THE UTILITY. THE MANUFACTURER SHALL PROVIDE MOUNTING CLIPS FOR CURRENT LIMITING FUSES WITH MOUNTING CLIP SEPARATION AND FUSE FERRULE DIAMETER APPROPRIATE FOR THE VOLTAGE RATING OF THE EQUIPMENT. VOLTAGE TRANSFORMER DISCONNECT REQUIREMENTS: a. KEY INTERLOCKING IS REQUIRED BETWEEN THE VT DISCONNECT AND THE VT COMPARTMENT DOOR SO THAT, FOR PERSONNEL

SAFETY, THE VT COMPARTMENT CANNOT BE ENTERED UNTIL THE FOLLOWING CONDITIONS ARE MET: THE DISCONNECT IS FULLY AND VISIBLY OPEN. WHEN THE VT DISCONNECT IS FULLY OPEN, THE DISCONNECT BLADES MUST GROUND AUTOMATICALLY. ARCING HORNS ARE NOT PERMITTED ON NO-LOAD DISCONNECT ASSEMBLIES. THE DISCONNECT IS LOCKED OPEN WITH A KEY INTERLOCK SYSTEM. VT DISCONNECT SWITCH SHALL BE PAD-LOCKABLE IN THE CLOSED POSITION. VT DISCONNECT SWITCH TO BE CONNECTED ON LINE SIDE OF CTS. b. THE UTILITY REQUIRES THE CUSTOMER TO PROVIDE TWO SETS OF INTERLOCK KEYS FOR UTILITY USE PRIOR TO ENERGIZING THE SERVICE. ONE OF THE KEYS WILL BE RETAINED BY THE UTILITY AND ONE WILL REMAIN WITH THE SERVICE EQUIPMENT. THE KEY INTERLOCK SYSTEM MUST PREVENT CLOSING OF THE DISCONNECT WITHOUT FIRST CLOSING AND LOCKING THE VT COMPARTMENT DOOR. c. PRIMARY CONTACTS FOR THE VOLTAGE DISCONNECT SHALL BE OF THE BLADE AND JAW DESIGN OR EQUIVALENT TO ENSURE CONTINUED ADEQUATE CONTACT. WIPING OR PRESSURE CONTACT IS NOT ACCEPTABLE. d. AS AN ALTERNATIVE, THE METER PANEL MAY BE MOUNTED IN FRONT OF THE CT COMPARTMENT, PROVIDED THAT WHEN THE

METER PANEL IS OPENED, THE COMPARTMENT IS FULLY ISOLATED BY A HINGED BARRIER. INSTRUMENT TRANSFORMER MOUNTING: INSTRUMENT TRANSFORMER MOUNTING SPECIFICATIONS INCLUDE CURRENT TRANSFORMER (CT) MOUNTING BASE AND VOLTAGE TRANSFORMER (VT) MOUNTING RAIL DETAIL SPECIFICATIONS. CURRENT TRANSFORMERS AND BUS LINK: BUS DRILLING AND SPACING SHALL ACCOMMODATE 800A OR LESS CTS OF THE PROPER VOLTAGE INSULATION CLASS. CT CENTER PHASE POSITION SHALL BE BUSSED STRAIGHT THROUGH FOR 3-PHASE, 3-WIRE, SERVICE VOLTAGE INSTALLATIONS WITH A REMOVABLE LINK DIMENSIONED THE SAME AS THE CT BARS ON THE METERED PHASES. FUSE SPECIFICATION: VT FUSES SHALL BE FURNISHED AND INSTALLED BY THE UTILITY. THE MANUFACTURER SHALL PROVIDE MOUNTING CLIPS FOR CURRENT LIMITING FUSES WITH MOUNTING CLIP SEPARATION AND FUSE FERRULE DIAMETER DIMENSIONS AS INDICATED IN SG604, TABLE 1, DIMENSION U. c © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE

C FORMATTING/EDITORIAL CHANGES EDM JTM IWA KRG 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A EDITORIAL CHANGES - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG603.5 5 OF 6 GENERAL INFORMATION

REFERENCE: a SEE SG506. b SEE SG608. c SEE SG604. d FOR EQUIPMENT WITH WEATHERPROOF DOORS, SEE SG604 FIGURE 3. C e SEE IEEE STD. C37.20.2-2015, TABLE 1.1-2: METAL-CLAD SWITCHGEAR VOLTAGE AND INSULATION LEVELS. C f SEE IEEE STD. C37.20.3-2013, TABLE 1.1-3: METAL-ENCLOSED SWITCHGEAR VOLTAGE AND INSULATION LEVELS. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM JTM IWA KRG 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A EDITORIAL CHANGES - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG603.6 6 OF 6 GENERAL INFORMATION

SCOPE: THIS STANDARD PROVIDES MEDIUM-VOLTAGE METERING CUBICLE REQUIREMENTS. a UTILITY C.T. FUSED MAIN DISCONNECT COMPARTMENT 1” COMMUNICATION OR BREAKER CONDUIT UTILITY NO LOAD WIRING SPACE UTILITY DISCONNECT & V.T. WIND UNDERGROUND COMPARTMENT LATCH PULL SECTION CUSTOMER LOAD SECTION 4” 11” VESTIBULE MIN. 90° MINIMUM WIND LATCH OPENING 11” VESTIBULE 4” WIRING SPACE I II III IV FIGURE 1 FIGURE 2 METERING CUBICLE METERING CUBICLE PAD LAYOUT TOP VIEW PLAN VIEW LIFTING EYE VIII VI 11” 1’-6” 1’-6” 4” Z VI CT 6’-3” MAX. CL 3’-0” 3’-0” IX 1” CONDUIT VII 7” 5” XI 1” CONDUIT U GROUND 5’-0” MAX. XII 1” CONDUIT BUS VII c 3’-0” 3’-0” V VT VT W STANDING X Y SURFACE FIGURE 3 FIGURE 3 METERING CUBICLE METERING CUBICLE FRONT VIEW SIDE VIEW SEE TABLE 1 SEE TABLE 1 © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E

A NO CHANGES-REAFFIRMED - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG604.1 1 OF 6 MEDIUM-VOLTAGE METERING CUBICLE

TABLE 1 ENCLOSURE DIMENSIONS TABLE VOLTAGE RATING SPECIFICATIONS 4160V 7200/1200V MINIMUM BARE BUS CLEARANCE Ø TO GROUND (IN) 3 1/2 6 MINIMUM BARE BUS CLEARANCE Ø TO Ø (IN) 5 7 1/2 5 MIN. Z (IN) 10 MAX. Y (IN 24 MIN. X (IN) W (IN) 60 MIN. V (IN) V 36 MIN. U - FUSE MOUNTING CLIP CENTER (IN) 8 1/2 11 1/2 U – FUSE FERRULE DIAMETER (IN) 1 5/8 INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I THE MANUFACTURER SHALL INSTALL A 1-INCH SCHEDULE 40 PVC COMMUNICATION CONDUIT LOCATED FROM THE METER COMPARTMENT TO THE BOTTOM OF THE VT COMPARTMENT ON THE HINGED SIDE OF THE METER DOOR IN THE SWITCHGEAR. II THE CUSTOMER SHALL PROVIDE AND INSTALL A MINIMUM 1-INCH SCHEDULE 40 PVC COMMUNICATION CONDUIT FROM THE SWITCHGEAR TO THE COMMUNICATION POINT OF CONNECTION SERVICE, E.G., MAIN POINT OF ENTRY (MPOE) OR PRIVATE BRANCH EXCHANGE (PBX) LOCATION. III THE CUSTOMER SHALL PROVIDE AND INSTALL A 1-INCH LIQUID-TIGHT NON-METALLIC FLEXIBLE CONDUIT TO CONNECT SWITCHGEAR PVC CONDUIT. IV CONSULT WITH THE UTILITY BEFORE THE INSTALLATION OF THE COMMUNICATION CONDUIT. b V NOT A CABLE TERMINATION SECTION

VI NO LOAD VOLTAGE TRANSFORMER DISCONNECT. ARCING HORNS ARE NOT PERMITTED. VII V.T., C.T., AND COMMUNICATION CONDUITS SHALL BE LOCATED ON THE SAME SIDE AS THE METER PANEL HINGES. VIII 200 LBS. MINIMUM STRENGTH IX FOR C.T. POTENTIAL WIRES XI FOR V.T. SECONDARIES XII FOR COMMUNICATION LINE . ALL SERVICE EQUIPMENT SHALL BE CONSIDERED 3-PHASE, 4-WIRE SERVICE. XIV.THE NEUTRAL CONDUCTOR SHALL BE TERMINATED IN A BUSHING-MOUNTED MECHANICAL LUG IN THE PULL SECTION. XV. THE BUSHING IS CONNECTED TO A NEUTRAL BUS EXTENDED TO THE MAIN SERVICE BREAKER OR FUSED SWITCH SECTION. IN AN ACCESSIBLE AREA BEHIND THE BREAKER OR FUSED SWITCH, THE NEUTRAL BUS SHALL HAVE A REMOVABLE JUMPER LINK FOR TESTING AND A DISCONNECT BONDING LINK TO THE GROUND BUS AND LABELED AS SUCH. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E

A NO CHANGES-REAFFIRMED - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG604.2 2 OF 6 MEDIUM-VOLTAGE METERING CUBICLE

REFERENCE: a SEE SG608: SWITCHGEAR UNDERGROUND SERVICE TERMINATING PULL SECTION. b FOR ADDITIONAL REQUIREMENTS, SEE SG525: METERING COMMUNICATIONS. c SEE SG607. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A NO CHANGES-REAFFIRMED - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG604.3 3 OF 6 MEDIUM-VOLTAGE METERING CUBICLE

SCOPE: THIS STANDARD PROVIDES METER PANEL LAYOUT REQUIREMENTS. 10” 6” 6” 4” 10” 4 OR 7 CLIP DETAIL 1 SOCKET 8” 1 1/2” 10” 1’-4” II III 15 CLIP SOCKET 1’-2” DETAIL 2 DETAIL 2 IV 2” 1’-4” 1’-2” FIGURE 1 METER PANEL LAYOUT METER METER LINE LOAD UTILITY CUSTOMER LINE LOAD DETAIL 1 I © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A NO CHANGES-REAFFIRMED - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG604.4 4 OF 6 MEDIUM-VOLTAGE METERING CUBICLE

“BREAK EDGES” FRONT AND BACK TO REMOVE ALL BURRS 9” 1” 1” 2 1/16” 3/4” 2 1/16” 10-32 TAP, 2 HOLES 1” 8 1/2” 1” 10 1/2” EXAMPLE 1 10-32 TAP 1/4” DRILL 1/4” DRILL 2 1/2” 3 1/4” 10-32 TAP 6 1/2” 8 1/2” 10 1/2” EXAMPLE 2 REMOVABLE PLATE DETAIL DETAIL 2 TEST SWITCH LAYOUT INSTALLATION: NONE BILL OF MATERIALS: NONE © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A NO CHANGES-REAFFIRMED - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG604.5 5 OF 6 MEDIUM-VOLTAGE METERING CUBICLE

NOTES: I TEST-BYPASS BLOCKS SUPPLIED BY MANUFACTURER AND MOUNTED ON BACK SIDE OF DOOR. a b II PROVIDE RING METER SOCKETS WITH NUMBER OF CLIPS AS INDICATED. III THIS METER SOCKET IS A REQUIREMENT WHEN CALIFORNIA INDEPENDENT SYSTEM OPERATOR (ISO) METERING IS REQUIRED. CONSULT WITH SDG&E SERVICE STANDARDS. IV CUSTOMER TO PROVIDE BLANK PLATE FOR SECOND TEST SWITCH LOCATION. REFERENCE: a FOR TEST-BYPASS FACILITIES, SEE SG513. b FOR CONTROL POWER TRANSFORMER (CPT) METER WIRING DIAGRAM, SEE SG605. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A NO CHANGES-REAFFIRMED - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG604.6 6 OF 6 MEDIUM-VOLTAGE METERING CUBICLE

SCOPE: THIS STANDARD SHOWS A CONTROL POWER TRANSFORMER METER WIRING DIAGRAM. LINE LOAD B PHASE LOAD B PHASE LINE A PHASE LOAD A PHASE LINE FIGURE 1 CONTROL POWER TRANSFORMER (CPT) METER I WIRING DIAGRAM INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I VIEWED FROM INSIDE OF DOOR REFERENCE: NONE © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK - - 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A NO CHANGES-REAFFIRMED - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG605.1 1 OF 1 CONTROL POWER TRANSFORMER METERING

SCOPE: THIS STANDARD PROVIDES INDOOR CURRENT TRANSFORMER DIMENSIONS FOR 5KV THROUGH 15KV METERING PURPOSES. 1/2” 3/4” MIN. 5/8” MIN. 1” I 1 1/2” MIN. 9/16” DIA. 7/8” 3” II MIN. 7/8” 5/8” MIN. 1/2” MIN. 1 3/4” Z 1/4” III 1/4” X MAX. Y 5” 1 21/32” 1 21/32” 7/16” CL OF TERMINALS 4 1/4” 27/32” 27/32” FIGURE 1 MOUNTING BASE SEE TABLE 1 © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM JTM IWA KRG 11/15/2024 F B NO CHANGES-REAFFIRMED - JC BRB MDJ 07/16/2015 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG606.1 1 OF 2 INDOOR CURRENT TRANSFORMER DIMENSIONS

TABLE 1 INDOOR CURRENT TRANSFORMER DIMENSIONS V VII INSULATION Z (IN) Y (IN) X (IN) MAXIMUM CLASS (KV) IV 10 – 800A 1,200 – 2,000A VI 10 – 800A 1,200 – 2,000A VI 10 – 800A 1,200 – 2,000A VI 5.0 14 -- 5 3/4 -- 8 -- 8.7 15 -- 8 -- 10 1/2 -- 15.0 22 26 9 5 3/4 11 1/4 13 INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I PRIMARY TERMINAL RATING 800A OR LESS II PRIMARY TERMINAL OVER 800A III 1/4-INCH APPLIES TO MULTIPLE BAR THICKNESS. SINGLE BAR THICKNESS MAY BE FROM 3/16-INCH TO 3/8-INCH. IV INSULATION CLASSES ARE 5, 8.7 AND 15KV. BASIC LIGHTNING IMPULSE INSULATION LEVELS (BILS) FOR THESE CLASSES ARE 60, 75 AND 110KV, RESPECTIVELY. V UNLESS OTHERWISE INDICATED, TOLERANCE PLUS OR MINUS 1/16 INCH. VI CONSULT WITH SDG&E SERVICE STANDARDS BEFORE CONSTRUCTING. VII 2,000A CURRENT TRANSFORMERS (CT'S) REQUIRE THE SWITCHGEAR TO HAVE THREE 1/4-INCH THICK BY 4-INCH WIDE BUS BARS PER PHASE. THIS IS TO ACCOMMODATE THE UTILITY CT'S, WHICH HAVE TWO 1/4-INCH THICK 4-INCH WIDE PADS ON EACH END TO CONNECT TO THE BUSSING. REFERENCE: NONE © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING/EDITORIAL CHANGES EDM JTM IWA KRG 11/15/2024 F B NO CHANGES-REAFFIRMED - JC BRB MDJ 07/16/2015 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG606.2 2 OF 2 INDOOR CURRENT TRANSFORMER DIMENSIONS

SCOPE: THIS STANDARD PROVIDES SPECIFICATIONS FOR INSTRUMENT TRANSFORMER MOUNTING IN MEDIUM-VOLTAGE METERING ENCLOSURES. 2 1/8” 2 1/8” 2 1/8” C C C L L L OUTSIDE MIDDLE OUTSIDE PHASE PHASE PHASE 2 1/2” 9” 2 1/2” BUS BUS BUS FIGURE 1 CURRENT TRANSFORMER MOUNTING BASE I 5” MIN. 9” 1’-1” MAX. FIGURE 2 II 1 2 III 1 ADJUSTABLE 5” MIN. 1’-1” MAX. 9” FIGURE 3 VOLTAGE TRANSFORMER MOUNTING RAIL DETAIL TOP VIEW OF CABINET SEE TABLE 1 © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/15/2024 F B NO CHANGES-REAFFIRMED - JC BRB MDJ 07/16/2015 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG607.1 1 OF 2 INSTRUMENT TRANSFORMER MOUNTING SPECIFICATIONS

TABLE 1 CABINET ITEM LIST ITEM DESCRIPTION 1 CHANNEL, UNISTRUT, P1000 2 NUT, P1008, 3/8”-16 INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I ALL HOLES TAP 3/8”-16 II OR EQUIVALENT TYPICAL III TYPICAL 6 EACH PER CHANNEL REFERENCE: NONE © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/15/2024 F B NO CHANGES-REAFFIRMED - JC BRB MDJ 07/16/2015 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG607.2 2 OF 2 INSTRUMENT TRANSFORMER MOUNTING SPECIFICATIONS

SCOPE: THIS STANDARD PROVIDES REQUIREMENTS FOR SWITCHGEAR UNDERGROUND SERVICE TERMINATING PULL SECTIONS (UGPS) IN THE SDG&E (UTILITY) SERVICE TERRITORY. ATTENTION: * THIS STANDARD APPLIES TO THE FOLLOWING VOLTAGES: 5KV CLASS: 4,160V, 3-WIRE AND 4-WIRE SERVICES 15KV CLASS: 6,900 TO 15,000V, 3-WIRE AND 4-WIRE SERVICES ** MINIMUM BARE BUS CLEARANCES: 5KV CLASS: 3 1/2 INCHES PHASE TO GROUND, 5 INCHES PHASE TO PHASE 15KV CLASS: 6 INCHES PHASE TO GROUND, 7 1/2 INCHES PHASE TO PHASE VI 1’-6” MIN. VI VI ATTACHMENT HEIGHT TO MAIN 2’-1” 2’-1” MIN. MIN. 5’-7” MIN. 6’-6” MAX. 4” 4” 4” 4” CLEAR CLEAR 3’-6” CLEAR CLEAR 3’-6” 3” MAX. 3” MAX. IV IV A 7 1/2” C TO C L L FIGURE 1 FIGURE 2 FIGURE 3 FRONT VIEW DOUBLE FRONT VIEW SIDE VIEW © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK - - 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A EDITORIAL CHANGES - JC BRB MDJ 07/16/2015 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG608.1 1 OF 3 SWITCHGEAR UNDERGROUND SERVICE TERMINATING PULL SECTION

I IX XI BALL STUD VI XII DETAIL 1 VII NO. 6 – 250 KCMIL GROUND LUG DETAIL 1 DETAIL 2 II a FIGURE 4 DETAIL 2 NO. 6 – 250 KCMIL NEUTRAL LUG INSTALLATION: A TERMINATE CONCENTRIC NEUTRAL ON NEUTRAL LUG FOR 4-WIRE SERVICES, AND ON THE GROUND LUG FOR 3-WIRE SERVICES. BILL OF MATERIALS: NONE NOTES: I NO. 6 – 250 KCMIL GROUND LUG INTENDED FOR UTILITY USE ON 3-WIRE SERVICES. II ISOLATED NEUTRAL TERMINATION CAN BE LOCATED ON RIGHT OR LEFT SIDE OF THE BACK WALL OF THE PULL SECTION. NEUTRAL TO BE BONDED TO GROUND IN MAIN SERVICE DISCONNECT SECTION ONLY. a III. CONSULT WITH THE UTILITY FOR THE NUMBER OF SERVICE CABLES, NUMBER, SIZE AND LOCATION OF SERVICE CONDUITS, AND TYPE OF SWITCHGEAR SERVICE TERMINATING UGPS REQUIRED. IV CONSULT WITH THE UTILITY TO DETERMINE IF THE SERVICE IS TO BE 3-WIRE OR 4-WIRE (3 PHASES AND A NEUTRAL) AND IF AN INSULATED NEUTRAL LANDING WITH A RANGE NO. 6 – 250 KCMIL IS REQUIRED. V. THE REMOVABLE ENCLOSING PANELS SHALL NORMALLY BE FRONT OR BACK. REMOVABLE PANELS SHALL BE EQUIPPED WITH TWO LIFTING HANDLES AND ATTACHED WITH STUDS AND WING NUTS.

PANEL COVER SHALL NOT EXCEED 9 SQUARE FEET. CONSULT WITH SDG&E SERVICE STANDARDS FOR SPECIAL PERMISSION TO LOCATE THE REMOVABLE ENCLOSING PANELS ON THE SIDE. IF THE REMOVABLE ENCLOSING PANELS ARE LOCATED ON THE SIDE, A 12-INCH MINIMUM ACCESS DISTANCE TO BUSSES SHALL BE PROVIDED, MEASURED FROM THE BUSSES TO THE PANELS, WITH THE PANELS IN PLACE. THE UGPS MAY BE REQUIRED TO BE EQUIPPED WITH HINGED FULL OPENING, SEALABLE ACCESS DOORS, WITH PADLOCK PROVISIONS. VI MANUFACTURER TO PROVIDE THE STANDARD NEMA TWO-HOLE DRILLING PATTERN FOR HOLES ON TERMINATING BUS. CONSULT THE UTILITY FOR THE NUMBER OF LANDING POSITIONS REQUIRED PER PHASE. THE UTILITY WILL PROVIDE THE NECESSARY TERMINATING BOLTS. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK - - 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A EDITORIAL CHANGES - JC BRB MDJ 07/16/2015 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG608.2 2 OF 3 SWITCHGEAR UNDERGROUND SERVICE TERMINATING PULL SECTION

NOTES (CONT’D): VII FURNISH AND INSTALL ONE PIECE OF STRUCTURAL SUPPORT SYSTEM EQUAL TO UNISTRUT P1000 AS SHOWN. THE BASIC LIGHTNING IMPULSE INSULATION LEVEL (BIL) RATING FOR THE UGPS SHALL BE NOT LESS THAN THE BIL RATING OF THE CUSTOMER'S ASSOCIATED SWITCHGEAR. IX NO CUSTOMER CONNECTIONS OR CUSTOMER EQUIPMENT ARE PERMITTED IN THE UGPS WHERE THE UTILITY TERMINATES ITS CONDUCTORS. XI GROUNDING BALL STUD 1/2-13 THREAD, WITH INSULATING COVER. THE BALL STUD PROVIDES A PLACE FOR UTILITY MEDIUM- VOLTAGE WORKERS TO TEST AND GROUND SERVICE EQUIPMENT. LOCATE THE BALL STUD ON THE UTILITY LANDING POSITION FLAG. XII THE GROUND BUS IN THE REAR OF THE UGPS IS TO BE EXTENDED TO THE FRONT LEFT OR RIGHT SIDE. GROUNDING TERMINATION DEVICES FOR UTILITY GROUNDING AND BONDING SHALL BE ALUMINUM-BODIED MECHANICAL LUGS WITH A RANGE OF NO. 6 – 250 KCMIL. REFERENCE: a SEE SG604. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE

C FORMATTING EDM JIK - - 11/15/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A EDITORIAL CHANGES - JC BRB MDJ 07/16/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG608.3 3 OF 3 SWITCHGEAR UNDERGROUND SERVICE TERMINATING PULL SECTION

SCOPE: THIS STANDARD PROVIDES GUIDELINES FOR THE CONNECTION OF SDG&E’S 12KV DISTRIBUTION SYSTEM TO A PRIMARY METERED SERVICE POINT FOR A 600V DIRECT CURRENT (DC) TROLLEY TRACTION STATION. FIGURE 1 INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. THE FOLLOWING REQUIREMENTS SHALL BE MET WHEN MAKING THIS CONNECTION: a. SDG&E (UTILITY) SHALL LOCATE ITS SUBSTRUCTURE AS CLOSE AS PRACTICABLE TO THE CUSTOMER’S GROUND GRID BUT IN NO CASE SHALL THE SUBSTRUCTURE BE IN CONTACT WITH THE CUSTOMER’S GROUND GRID (GROUNDING ELECTRODE SYSTEM). b. THE CONCENTRIC NEUTRALS FROM THE UTILITY’S CABLE SHALL NOT BE CONNECTED TO THE CUSTOMER’S EQUIPMENT. c. THE CABLE TERMINATION IN THE CUSTOMER’S SWITCHGEAR CABINET SHALL BE A LIVEFRONT DELTA CONNECTION. d. ALL REQUIREMENTS OF THE SWITCHBOARD UNDERGROUND SERVICE TERMINATING PULL SECTION STANDARD SHALL BE MET, EXCEPT AS MODIFIED BY THIS STANDARD AS IT PERTAINS TO SERVING VOLTAGE AND GROUNDING AND BONDING OF THE SYSTEM. a REFERENCE: a SEE SG608: SWITCHGEAR UNDERGROUND SERVICE TERMINATING PULL SECTION. b. SEE SPM254 AND UG4705.

© 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 11/15/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG609.1 1 OF 1 12KV SERVICE POINT CONNECTION FOR TROLLEY TRACTION STATION

PAGE SUBJECT 702 ELECTRIC TERMINATING ENCLOSURES, 0–600V ALPHABETICAL SUBJECT INDEX 703 GENERAL INFORMATION 704 OVERHEAD SERVICE TERMINATING ENCLOSURE 705 UNDERGROUND PULL CAN WITH OR WITHOUT MECHANICAL LUGS 706 UNDERGROUND PULL CAN WITH CABLE TERMINATION BUS STUBS 707 RESIDENTIAL SINGLE-PHASE MULTI-METER STACK 708 UNDERGROUND PULL SECTION, 0-600V 709 CABLE TERMINATION BUS STUBS IN UNDERGROUND PULL CANS OR PULL SECTIONS © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 11/18/2024 E A NEW PAGE - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG701.1 1 OF 1 ELECTRIC TERMINATING ENCLOSURES, 0–600V TABLE OF CONTENTS

SUBJECT PAGE CABLE TERMINATION BUS STUBS IN UNDERGROUND PULL CANS OR PULL SECTIONS................................................................. 709 CONDUCTOR IDENTIFICATION................................................................................................................................................ 703 GENERAL INFORMATION......................................................................................................................................................... 703 GROUNDING ELECTRODE, GROUNDING ELECTRODE CONDUCTOR................................................................................... 703, 706.2 LINE TRUCK ACCESS............................................................................................................................................................... 703 LOCATION.............................................................................................................................................................................. 703

OVERHEAD SERVICE TERMINATING ENCLOSURE, STANDARD SWITCHBOARD SERVICE SECTION................................................. 704 PHASE ARRANGEMENT............................................................................................................................................................ 703 RESIDENTIAL SINGLE-PHASE MULTI-METER STACK “SPECIAL APPLICATION”.............................................................................. 707 UNDERGROUND PULL CAN WITH CABLE TERMINATION BUS STUBS........................................................................................... 706 UNDERGROUND PULL CAN, WITH OR WITHOUT MECHANICAL LUGS.......................................................................................... 705 UNDERGROUND SERVICE PULL CAN, WITH MECHANICAL LUGS........................................................................... 705.3 – 705.5 UNDERGROUND SERVICE PULL CAN, WITHOUT MECHANICAL LUGS..................................................................... 705.1 – 705.2

UNDERGROUND PULL SECTION, 0-600V................................................................................................................................... 708 © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 11/18/2024 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG702.1 1 OF 1 ELECTRIC TERMINATING ENCLOSURES, 0–600V ALPHABETICAL SUBJECT INDEX

SCOPE: THIS STANDARD PROVIDES GENERAL INFORMATION ON 0-600V ELECTRIC TERMINATING ENCLOSURES. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. SDGE (UTILITY) WILL PULL AND TERMINATE ITS SERVICE LATERAL CONDUCTORS DIRECTLY TO THE CUSTOMER-FURNISHED SERVICE TERMINATION FACILITIES WHICH CONSIST OF A FREE STANDING UNDERGROUND PULL SECTION (UGPS) OR A WALL- MOUNTED UNDERGROUND PULL CAN. NO OTHER METHOD OF TERMINATION IN AN ENCLOSURE IS ACCEPTABLE. II. TERMINATING ENCLOSURES MAY BE REMOTE FROM THE METERING SECTION; CONSULT THE UTILITY AND THE APPROPRIATE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) FOR LIMITATIONS. a III. A UGPS MAY NOT COME IN CONTACT WITH THE EARTH AND MUST BE LOCATED ON A SUITABLE FOUNDATION OR SLAB. IV. THE GROUNDING ELECTRODE AND/OR THE GROUNDING ELECTRODE CONDUCTOR ARE NOT TO BE PERMITTED WITHIN THE UTILITY PORTION OF THE UNDERGROUND PULL CAN OR PULL SECTION. THE COVERS ARE SEALED BY THE UTILITY AND NOT READILY ACCESSIBLE FOR THE AHJ TO INSPECT. b V. CONDUCTOR IDENTIFICATION: a. EQUIPMENT GROUNDING CONDUCTORS: GREEN, OR GREEN WITH ONE OR MORE YELLOW STRIPES b.

GROUNDED CONDUCTORS: WHITE OR GRAY IN COLOR c. HIGH LEG MARKING: 4-WIRE, DELTA-CONNECTED SERVICE WHERE THE MIDPOINT OF ONE PHASE IS GROUNDED THE SERVICE ENTRANCE CONDUCTOR HAVING THE HIGHER PHASE-TO-GROUND VOLTAGE (208V) SHALL BE MARKED ORANGE IN COLOR. d. GROUNDED PHASE CONDUCTOR: 3-WIRE, DELTA-CONNECTED SERVICE WHERE “B” PHASE IS CORNER-GROUNDED “B” PHASE SHALL BE MARKED RED IN COLOR. e. UNGROUNDED CONDUCTORS: COLOR OTHER THAN WHITE, GRAY, GREEN OR ORANGE IF COLOR MARKINGS ARE USED VI. PHASE ARRANGEMENT: a. THE PHASE ARRANGEMENT SHALL BE “ABC” FRONT TO BACK, TOP TO BOTTOM, OR LEFT TO RIGHT AS VIEWED FROM THE FRONT OF THE TERMINATING ENCLOSURE AND IN SWITCHBOARDS. b. ON A THREE-PHASE, 4-WIRE, 120/240V DELTA-CONNECTED SERVICE, THE HIGH LEG SHALL BE IN THE “C” PHASE POSITION ONLY. SEE HIGH LEG MARKING IDENTIFICATION REQUIREMENTS ABOVE. REFERENCE: a FOR AN ALTERNATIVE TO LINE TRUCK ACCESS TO TERMINATING ENCLOSURES, SEE SG016. b FOR EXCEPTION, SEE SG706. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C FORMATTING EDM JIK - - 11/18/2024 F B EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 E A EDITORIAL CHANGES - JC BRB MDJ 08/26/2015 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG703.1 1 OF 1 GENERAL INFORMATION

SCOPE: THIS STANDARD DESCRIBES OVERHEAD SERVICE TERMINATING ENCLOSURES. II VI I III V III VII STANDARD 7’-6” SERVICE SECTION TO LOAD TO LOAD III IV III IV FIGURE 1 FIGURE 2 STANDARD SWITCHBOARD STANDARD SWITCHBOARD SERVICE SECTION, 0–600V SERVICE SECTION, 0–600V INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I SERVICE ENTRANCE CONDUCTORS AS SHOWN IN FIGURE 1, EITHER CABLE OR BUS BAR, ARE FURNISHED AND INSTALLED BY CUSTOMER IN THE FOLLOWING MANNER: a. WHEN SWITCHBOARDS ARE SERVED THROUGH BUS BAR CONDUCTORS, THE CONDUCTORS SHALL ENTER THROUGH THE TOP, OR AT THE SIDE OR BACK IN THE UPPER 10-INCH SECTION. b. WHEN SWITCHBOARDS ARE SERVED THROUGH CABLE CONDUCTORS (800A MAXIMUM), SERVICE ENTRANCE CONDUCTORS SHALL ENTER THROUGH THE TOP OF THE SWITCHBOARD ONLY AS SHOWN IN FIGURE 1. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG704.1 1 OF 2 OVERHEAD SERVICE TERMINATING ENCLOSURE

NOTES (CONT’D): II WHEN CUSTOMER REQUIRES INCOMING CONDUITS FROM SIDE OR REAR FOR SERVICE ENTRANCE CONDUCTORS, AN EXTENSION AS SHOWN IN FIGURE 2 MAY BE USED. III DIRECTION OF FEED IS FROM TOP TO BOTTOM IN THE STANDARD SWITCHBOARD SERVICE SECTION. LOAD CONDUCTORS SHALL LEAVE BELOW THE MAIN SWITCH OR BREAKER, AND MAY NOT BE ROUTED BACK THROUGH THE CURRENT TRANSFORMER (CT) COMPARTMENT IN ORDER TO EXIT THE SERVICE SECTION. IV GROUNDING CONNECTIONS SHALL BE MADE IN THE MAIN SWITCH OR BREAKER COMPARTMENT. V CUSTOMER PROVIDED SERVICE ENTRANCE CONDUCTORS ENTERING SWITCHBOARD VI SWITCHBOARD EXTENSION FOR CUSTOMER’S CONDUCTORS WHEN REQUIRED VII SERVICE ENTRANCE CONDUCTORS REFERENCE: NONE © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG704.2 2 OF 2 OVERHEAD SERVICE TERMINATING ENCLOSURE

SCOPE: THIS STANDARD PROVIDES THE REQUIREMENTS FOR UNDERGROUND PULL CANS WITHOUT MECHANICAL LUGS FOR CABLE TERMINATION. I 1” Z X 2” REAR KNOCKOUT IV SEALABLE COVER Y 7’-0” MAX. III 1” MAX. II 6” MIN. STANDING SURFACE V FIGURE 1 UNDERGROUND SERVICE PULL CAN WITHOUT MECHANICAL LUGS TABLE 1 MINIMUM PULL CAN DIMENSIONS WITHOUT MECHANICAL LUGS CUSTOMER-INSTALLED MINIMUM PULL CAN DIMENSIONS TYPE OF SERVICE SERVICE ENTRANCE MINIMUM SIZE FOR RESIDENTIAL OR COMMERCIAL SERVICE EQUIPMENT CONDUCTORS MAX. PHASE SERVICE LATERAL CONDUIT (IN) 3W OR 4W SERVICE AMPACITY WIRE SIZE (IN) Z Y X COMMERCIAL 0 - 100 SINGLE 10 12 3/0 3 a 4 RESIDENTIAL 0 - 125 THREE 6 18 COMMERCIAL 101 - 200 SINGLE 250 KCMIL 3 a 12 18 6 RESIDENTIAL 126 - 225 THREE COMMERCIAL 201 - 400 SINGLE 3 500 KCMIL 18 24 8 RESIDENTIAL 226 - 400 THREE 4 REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES

SHEET SG705.1 1 OF 5 UNDERGROUND PULL CAN WITHOUT MECHANICAL LUGS

INSTALLATION: UNDERGROUND SERVICE PULL CAN WITHOUT MECHANICAL LUGS A. SDG&E (UTILITY) ACCEPTS UNDERGROUND PULL CANS RATED 0–600V, 0–400A MAXIMUM, WITHOUT MECHANICAL LUGS FOR RESIDENTIAL OR COMMERCIAL/INDUSTRIAL SERVICE PROVIDED THE REQUIREMENTS OF THIS STANDARD ARE MET. PULL CANS ARE REQUIRED TO BE WALL-MOUNTED. B. PULL CANS SHALL BE READILY ACCESSIBLE AND LOCATED IN CONFORMANCE WITH THE REQUIREMENTS FOR ELECTRIC METERS. d C. PULL CANS OF THIS TYPE ARE USED TO PULL AND SPLICE CONNECTION OF THE UTILITY’S SERVICE LATERAL CONDUCTORS TO CUSTOMER-OWNED SERVICE ENTRANCE CONDUCTORS. THE SERVICE ENTRANCE CONDUIT MUST EXIT FROM THE TOP OR WITHIN 2 INCHES OF TOP OF PULL CAN. CUSTOMER SHALL PROVIDE ENOUGH WIRE TO REACH BOTTOM OF PULL CAN. D. PULL CANS WITHOUT MECHANICAL LUGS MAY ONLY BE USED WHEN ALL OF THE FOLLOWING REQUIREMENTS ARE MET: 1. SERVICE EQUIPMENT AMPACITY RATING AND THE SIZE OF THE CUSTOMER’S CONDUCTORS DO NOT EXCEED THE VALUES SHOWN IN TABLE 1. 2. NOT MORE THAN ONE CONDUCTOR PER PHASE AND NEUTRAL OF CUSTOMER SERVICE ENTRANCE CONDUCTORS ARE INSTALLED. 3.

THE UTILITY’S SERVICE LATERAL CONDUCTORS DO NOT EXCEED ONE RUN OF 3/C OR 4/C NO. 500 KCMIL. E. WHEN ALL OF THE ABOVE CONDITIONS CANNOT BE MET, SEE SHEET 3 FOR A PULL CAN WITH MECHANICAL LUGS. BILL OF MATERIALS: NONE NOTES: I 1-INCH SIDE CLEARANCE IS REQUIRED TO ANY SIDE WALL, EQUIPMENT OR OBSTRUCTION. ANY PROJECTION WHICH EXTENDS MORE THAN THE DEPTH OF THE PULL CAN FROM THE SURFACE ON WHICH THE PULL CAN IS MOUNTED SHALL BE CONSIDERED AN OBSTRUCTION. II SERVICE LATERAL CONDUIT MUST BE FIRMLY SECURED TO PULL CAN WITH LOCK NUT, HUB OR BUSHING AND MUST ENTER THE BOTTOM OF THE PULL CAN. MAXIMUM CONDUIT INTRUSION INSIDE CAN IS 1 INCH. III EXCEPTION TO THE 7-FOOT MAXIMUM MOUNTING HEIGHT MAY BE GRANTED DUE TO SPECIAL CONDITIONS. CONSULT WITH THE UTILITY. IV PULL CAN COVERS SHALL BE REMOVABLE AND SEALABLE. b d V 3’ X 3’ CLEAR AND LEVEL WORKING SPACE REQUIRED IN FRONT OF PULL CAN. c REFERENCE: a FOR 2-INCH CONDUIT EXCEPTION, SEE SG309.2. b FOR SEALING REQUIREMENTS, SEE SG503. d c FOR ADDITIONAL WORKING SPACE CLEARANCE REQUIREMENTS, SEE SG504. d SEE SG504.

© 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG705.2 2 OF 5 UNDERGROUND PULL CAN WITHOUT MECHANICAL LUGS

SCOPE: THIS STANDARD PROVIDES THE REQUIREMENTS FOR UNDERGROUND SERVICE PULL CANS WITH MECHANICAL LUGS FOR CABLE TERMINATION. ATTENTION: * THE UTILITY ACCEPTS UNDERGROUND PULL CANS RATED 0-600V, 0-800A MAXIMUM, WITH MECHANICAL LUGS FOR CABLE TERMINATION FOR RESIDENTIAL OR COMMERCIAL/INDUSTRIAL SERVICE PROVIDED THE REQUIREMENTS OF THIS STANDARD ARE MET. PULL CANS ARE REQUIRED TO BE WALL-MOUNTED. 3/4” MIN. 3/4” MIN. Z G Y 1 1/2” MIN. L 4” MIN. (TO BUS) AND 1 1/2” MIN. 1 1/2” MIN. 1” MIN. (TO LUG) E H COVER AND LIFTING HANDLE K 1” MIN. 1 1/2” MIN. 1 1/2” MIN. D X F J A B a STANDING SURFACE 6” MIN. FIGURE 1 © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG705.3 3 OF 5 UNDERGROUND SERVICE PULL CAN

MAIN DISCONNECT 3” MIN. D J A B a 2” BACK 2” OR 2” 0-400A 401-800A FIGURE 2 FIGURE 3 COMBINATION UNDERGROUND C L M MECHANICAL LUG ARRANGEMENT PULL AND DISCONNECT CAN FOR TERMINATING FACILITIES TABLE 2 MINIMUM PULL CAN DIMENSIONS WIDTH Z (IN) DEPTH LUG SERVICE AMPACITY 3W 4W Y (IN) X (IN) 0 - 200 I 10 14 6 11 201 - 400 10 14 6 22 401 - 800 16 22 11 26 © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG705.4 4 OF 5 UNDERGROUND SERVICE PULL CAN WITH MECHANICAL LUGS

INSTALLATION: A SERVICE LATERAL CONDUITS, FIRMLY SECURED WITH A LOCKNUT, HUB OR BUSHING, MUST ENTER BOTTOM OF PULL CAN. MAXIMUM CONDUIT INTRUSION INSIDE PULL CAN IS 1 INCH. LOAD CONDUITS MUST EXIT ABOVE SHADED AREA. a B BONDING CONNECTION FOR SERVICE LATERAL CONDUITS ONLY IS PERMITTED AT BOTTOM OF CAN. ANY OTHER BONDING OR GROUNDING CONNECTION MUST BE MADE ABOVE THE SHADED AREA AND NO GROUNDING OR BONDING CONDUCTOR IS PERMITTED TO PASS THROUGH SHADED AREA. C IN THE COMBINATION UNDERGROUND PULL AND DISCONNECT CAN (SEE FIGURE 2) THE GROUNDING ELECTRODE CONDUCTOR OR BOND JUMPER MAY BE INSTALLED IN A FULLY ENCLOSED, FACTORY-INSTALLED WIREWAY (2” X 2” MAXIMUM) LOCATED IN EITHER BACK CORNER OF THE PULL CAN AREA (SEE FIGURE 2 BOTTOM VIEW). THE RACEWAY MAY NOT IMPEDE THE REQUIRED WORKING SPACE OR REDUCE ANY SPECIFIC CLEARANCES. D SHADED AREA IS FOR UTILITY SERVICE LATERAL CONDUCTOR ONLY. B C E TERMINATING FACILITIES FOR UTILITY’S SERVICE LATERAL CONDUCTORS SHALL BE ALUMINUM-BODIED MECHANICAL LUGS WITH C A RANGE ACCEPTING ONE 4 AWG THROUGH 500 KCMIL CONDUCTOR.

ONE LUG SHALL BE PROVIDED FOR TERMINATIONS RATED UP TO 400A AND TWO LUGS FOR TERMINATIONS RATED 401-800A. REFER TO SG707 FOR EXCEPTION THAT ALLOWS A SINGLE LUG FOR 600A SPECIAL APPLICATION. b d F MAXIMUM HEIGHT FROM STANDING SURFACE TO CENTERLINE OF MECHANICAL LUG IS 60 INCHES. UTILITY MAY APPROVE GREATER HEIGHT DUE TO SPECIAL CIRCUMSTANCES. CONSULT WITH THE UTILITY. G THIS DIMENSION IS THE MINIMUM WIDTH OF PULL CAN ACCESS OPENING AND IS MEASURED BETWEEN LEFT SIDE AND RIGHT F SIDE RETURN FLANGES; NOT INTERIOR WALLS OF PULL CAN. H WHEN VIEWED FROM FRONT OF PULL CAN, RETURN FLANGES SHALL NOT EXTEND CLOSER THAN 3/4-INCH FROM OUTSIDE EDGE OF MECHANICAL LUG. J 1 INCH MINIMUM SIDE CLEARANCE IS REQUIRED FROM SIDE OF PULL CAN TO ANY OTHER EQUIPMENT OR OBSTRUCTION. K ALL PULL CANS SHALL HAVE FULL FRONT ACCESS. COVER PANELS SHALL BE REMOVABLE, SEALABLE, PROVIDED WITH TWO LIFTING HANDLES, AND LIMITED TO A MAXIMUM OF 9 SQUARE FEET IN AREA. SEALING PROVISIONS SHALL CONSIST OF TWO DRILLED STUD AND WING-NUT ASSEMBLIES ON OPPOSITE SIDES OF THE PANEL. A MINIMUM OF 4 INCHES IS REQUIRED FROM

BUS TO INSIDE OF PANEL COVER AND 1 INCH MINIMUM FROM BOLT TERMINATION TO INSIDE OF PANEL COVER. c L IN PULL CANS RATED 0-800A, EITHER BUS BAR OR CABLE CONNECTIONS MAY BE USED FROM TOP OF THE CABLE TERMINATION BUS TO SERVE A CURRENT TRANSFORMER (CT) COMPARTMENT, A SINGLE MAIN DISCONNECT, AND MULTIPLE MAIN DISCONNECTS. M A MAIN SERVICE OR METER SERVICE DISCONNECT IS NOT PERMITTED ON SUPPLY (LINE) SIDE OF A SINGLE METER. BILL OF MATERIALS: NONE NOTES: I 225A FOR RESIDENTIAL SERVICE EQUIPMENT REFERENCE: a FOR SERVICE LATERAL CONDUIT REQUIREMENTS, SEE SG309. b SEE SG707. d c FOR SEALING REQUIREMENTS, SEE SG503. d. FOR CONDUCTOR IDENTIFICATION AND PHASE ARRANGEMENT, SEE SG703. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG705.5 5 OF 5 UNDERGROUND SERVICE PULL CAN WITH MECHANICAL LUGS

SCOPE: THIS STANDARD PROVIDES THE REQUIREMENTS FOR UNDERGROUND PULL CANS WITH CABLE TERMINATION BUS STUBS. ATTENTION: * SDG&E (UTILITY) ACCEPTS UNDERGROUND PULL CANS RATED 0–600V, 801–1,200A MAXIMUM, WITH CABLE TERMINATION BUS STUBS FOR RESIDENTIAL OR COMMERCIAL/INDUSTRIAL SERVICE PROVIDED THE REQUIREMENTS OF THIS STANDARD ARE MET. ** PULL CANS ARE REQUIRED TO BE WALL-MOUNTED. MAIN DISCONNECT 3” MIN. Z F Y G A B a 1” FROM BOLT D HEAD X H E 2” BACK 6” A B MIN. a STANDING SURFACE 2” OR 2” FIGURE 1 FIGURE 1 FIGURE 2 FRONT VIEW SIDE VIEW J K d e COMBINATION UNDERGROUND PULL AND DISCONNECT CAN C L TABLE 1 MINIMUM PULL CAN DIMENSIONS WIDTH Z (IN) DEPTH LUG SERVICE AMPACITY 3W 4W Y (IN) X (IN) 801 – 1,200 -- 30 11 26 © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG706.1 1 OF 2 UNDERGROUND PULL CAN WITH CABLE TERMINATION BUS STUBS

INSTALLATION: A SERVICE LATERAL CONDUITS, FIRMLY SECURED WITH LOCKNUT, HUB, OR BUSHING, MUST ENTER BOTTOM OF PULL CAN. MAXIMUM CONDUIT INTRUSION INSIDE PULL CAN IS 1 INCH. LOAD CONDUITS MUST EXIT ABOVE SHADED AREA. a B BONDING CONNECTION FOR SERVICE LATERAL CONDUITS ONLY IS PERMITTED AT BOTTOM OF CAN. ANY OTHER BONDING OR GROUNDING CONNECTION MUST BE MADE ABOVE THE SHADED AREA AND NO GROUNDING OR BONDING CONDUCTOR IS PERMITTED TO PASS THROUGH THE SHADED AREA. C IN THE COMBINATION UNDERGROUND PULL AND DISCONNECT CAN (SEE FIGURE 2) THE GROUNDING ELECTRODE CONDUCTOR OR BOND JUMPER MAY BE INSTALLED IN A FULLY ENCLOSED, FACTORY-INSTALLED WIREWAY (2” X 2” MAXIMUM) LOCATED IN EITHER BACK CORNER OF THE PULL CAN AREA (SEE FIGURE 2, BOTTOM VIEW). THE RACEWAY MAY NOT IMPEDE THE REQUIRED WORKING SPACE OR REDUCE ANY SPECIFIED CLEARANCES. D SHADED AREA IS FOR UTILITY SERVICE LATERAL CONDUCTOR ONLY. B E MAXIMUM HEIGHT FROM STANDING SURFACE TO CENTERLINE OF LOWEST TERMINATION BOLT IS 60 INCHES. UTILITY MAY APPROVE GREATER HEIGHT DUE TO SPECIAL CIRCUMSTANCES. CONSULT WITH THE UTILITY.

3’-0” X 3’-0” CLEAR AND LEVEL WORKING SPACE IS REQUIRED IN FRONT OF THE PULL CAN. b F THIS DIMENSION IS THE MINIMUM WIDTH OF PULL CAN ACCESS OPENING AND IS MEASURED BETWEEN LEFT SIDE AND RIGHT SIDE RETURN FLANGES; NOT THE INTERIOR WALLS OF THE PULL CAN. G WHEN VIEWED FROM FRONT OF PULL CAN, RETURN FLANGES SHALL NOT EXTEND TO CLOSER THAN 3/4-INCH FROM THE OUTSIDE EDGE OF BUS STUB. H 1-INCH MINIMUM SIDE CLEARANCE IS REQUIRED FROM SIDE OF PULL CAN TO ANY OTHER EQUIPMENT OR OBSTRUCTION. J ALL PULL CANS SHALL HAVE FULL FRONT ACCESS. COVER PANELS SHALL BE REMOVABLE, SEALABLE, PROVIDED WITH TWO LIFTING HANDLES, AND LIMITED TO A MAXIMUM OF 9 SQUARE FEET IN AREA. SEALING PROVISIONS SHALL CONSIST OF TWO DRILLED STUD AND WING-NUT ASSEMBLIES ON OPPOSITE SIDES OF THE PANEL. A MINIMUM OF 4 INCHES IS REQUIRED FROM BUS TO INSIDE OF PANEL COVER AND 1 INCH MINIMUM FROM BOLT TERMINATION TO INSIDE OF PANEL COVER. c K IN PULL CANS RATED 801–1,200A, BUS BAR CONNECTIONS ARE REQUIRED FROM TOP OF CABLE TERMINATION BUS STUBS TO SERVE A CURRENT TRANSFORMER (CT) COMPARTMENT.

THE REASON FOR REQUIRING BUS BAR CONNECTIONS IS LARGE CABLE WILL QUITE OFTEN PULL CT BUSSES OUT OF THEIR VERTICAL ALIGNMENT, MAKING IT DIFFICULT OR IMPOSSIBLE TO MOUNT CTS. BUS BARS ARE NOT REQUIRED TO SERVE A MAIN DISCONNECT. L A MAIN SERVICE OR METER SERVICE DISCONNECT IS NOT PERMITTED ON THE SUPPLY (LINE) SIDE OF A SINGLE METER. BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: a FOR SERVICE LATERAL CONDUIT REQUIREMENTS, SEE SG309. b FOR ADDITIONAL WORKING SPACE CLEARANCE REQUIREMENTS, SEE SG504. c FOR SEALING REQUIREMENTS, SEE SG503. d FOR CONDUCTOR IDENTIFICATION AND PHASE ARRANGEMENT, SEE SG703. e FOR BUS AND BOLT DETAILS, SEE SG709. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG706.2

2 OF 2 UNDERGROUND PULL CAN WITH CABLE TERMINATION BUS STUBS

SCOPE: THIS SPECIAL APPLICATION STANDARD PROVIDES THE REQUIREMENTS FOR A FACTORY-MANUFACTURED PULL CAN AND METER STACK(S) FOR RESIDENTIAL MULTI-FAMILY OCCUPANCY ONLY, RATED 600A MAXIMUM, SINGLE-PHASE, 3-WIRE, 120/208V OR 120/240V, WITH SIX METERS MAXIMUM. ATTENTION: * THIS EQUIPMENT IS REQUIRED TO BE WALL-MOUNTED. ** THIS STANDARD DOES NOT APPLY TO FIELD INSTALLED PULL CANS WITH RACEWAYS AND CABLING TO INDIVIDUAL METER PANELS. *** THE SDG&E PLANNER SHALL PROVIDE THE CUSTOMER WITH A COPY OF THIS STANDARD WITH THE ELECTRIC METER & SERVICE LOCATION FORM BECAUSE IT IS A SPECIAL APPLICATION. IT IS IMPORTANT FOR THE CUSTOMER TO UNDERSTAND THE EQUIPMENT MUST BE FACTORY-MANUFACTURED WITH HORIZONTAL BUSSING FROM THE PULL CAN TO THE METERING SECTION(S). E H E H C A D X Y Z Z Y F B 6” MIN. 6” MIN. G e STANDING SURFACE STANDING SURFACE G e FIGURE 1 FIGURE 1 FIGURE 2 I FIGURE 2 SIDE VIEW FRONT VIEW FRONT VIEW SIDE VIEW SEE TABLE 1 SEE TABLE 1 SEE TABLE 1 SEE TABLE 1 3 5/8” MIN. RADIUS 1/4” MIN. RADIUS 90° FIGURE 3 METER PANEL COVER CUTOUT DETAIL © 1998 - 2024 San Diego Gas & Electric Company.

All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG707.1 1 OF 2 RESIDENTIAL SINGLE-PHASE MULTI-METER STACK

TABLE 1 REQUIRED DIMENSIONS MINIMUM SERVICE EQUIPMENT DIMENSIONS MINIMUM MAXIMUM SERVICE EQUIPMENT CONDUIT CONDUIT (A) Z (IN) Y (IN) X (IN) SIZE SIZE (QTY - IN) (QTY - IN) 0 - 200 6 1/2 5 1/2 11 1 - 3 1 - 4 201 - 400 10 1/2 6 22 1 - 3 1 - 4 401 - 600 10 1/2 6 22 1 - 4 1 - 4 INSTALLATION: A SHADED AREA IS FOR UTILITY SERVICE LATERAL CONDUCTOR ONLY. BONDING CONNECTION FOR SERVICE LATERAL CONDUITS ONLY IS PERMITTED AT BOTTOM OF CAN. ANY OTHER BONDING OR GROUNDING CONNECTION MUST BE MADE ABOVE THE SHADED AREA AND NO GROUNDING OR BONDING CONDUCTOR IS PERMITTED TO PASS THROUGH THE SHADED AREA. B SERVICE LATERAL CONDUITS MUST ENTER THE BOTTOM OF THE PULL CAN AND BE FIRMLY SECURED WITH A LOCKNUT, HUB OR BUSHING. THE MAXIMUM CONDUIT INTRUSION INSIDE THE SHADED AREA IS 1 INCH. a C A “SINGLE LUG” FOR 600A IS PERMITTED FOR THIS APPLICATION ONLY. SERVICE CONDUCTORS MAY CROSS OVER HORIZONTAL BUSSES PROVIDED A BARRIER IS INSTALLED OR THE BUS IS FULLY INSULATED. b D THE NEUTRAL LUG HEIGHT MAY BE REDUCED TO 8 1/2 INCHES.

E THE PULL CAN COVER SHALL BE INDEPENDENT OF ANY OTHER SERVICE EQUIPMENT AND SHALL BE REMOVABLE WITHOUT DISTURBING ADJACENT PANELS. PULL CAN COVERS SHALL HAVE TWO LIFTING HANDLES AND ARE LIMITED TO 9 SQUARE FEET IN AREA. COVERS SHALL BE SEALABLE WITH TWO DRILLED STUD AND WING-NUT ASSEMBLIES ON OPPOSITE SIDES OF THE PANEL. c F THIS DIMENSION IS THE MINIMUM WIDTH OF PULL CAN ACCESS OPENING AND IS MEASURED BETWEEN LEFT SIDE AND RIGHT SIDE RETURN FLANGES, NOT THE INTERIOR WALLS OF THE PULL CAN. G A MINIMUM 3’-0” X 3’-0” CLEAR AND LEVEL WORKING SPACE IS REQUIRED IN FRONT OF THE PULL CAN. d H BUS TAPS ARE NOT PERMITTED IN THIS SPECIAL APPLICATION. EXCEPTION: TAPS FOR SOLAR POWER INPUT ARE PERMITTED WITH APPROVAL FROM SDG&E SERVICE STANDARDS. f BILL OF MATERIALS: NONE NOTES: I METER STACK TO LEFT OR RIGHT OF PULL CAN REFERENCE: a FOR SERVICE LATERAL CONDUIT REQUIREMENTS, SEE SG309. b FOR MECHANICAL LUG DETAILS, SEE SG705. c FOR SEALING REQUIREMENTS, SEE SG503. d FOR ADDITIONAL WORKING SPACE CLEARANCE REQUIREMENTS, SEE SG504. e FOR METER CABINET REQUIREMENTS, SEE SG509.

f FOR APPROVAL PROCEDURE, SEE SG517.1. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG707.2 2 OF 2 RESIDENTIAL SINGLE-PHASE MULTI-METER STACK

SCOPE: THIS STANDARD DESCRIBES 0-600V UNDERGROUND PULL SECTIONS. ATTENTION: * SDG&E (UTILITY) ACCEPTS FREE-STANDING UNDERGROUND PULL SECTIONS (UGPS), RATED 0–600V, 4,000A MAXIMUM, PROVIDED ALL REQUIREMENTS OF THIS STANDARD ARE MET. Z E Z E A F TO LOAD MAIN OR C.T. K MAIN OR C.T. A F SECTION SECTION K A F Y Y TO LOAD UGPS H J H J FIGURE 1 FIGURE 2 FIGURE 3 PULL SECTION 4,000A MAXIMUM B C D PULL SECTION 2,000A MAXIMUM B C D BOTTOM FEED ONLY BOTTOM FEED ONLY SEE TABLE 1 SEE TABLE 1 7 1/2” 3” 3” MIN. 3” 7 1/2” 3” MIN. MIN. (TYP.) MIN. MIN. MIN. 3” MIN. 3” MIN. 7 1/2” MIN. 3” MIN. 3” MIN. EXAMPLE 1 EXAMPLE 2 CONDUIT PLACEMENT FOR CONDUIT PLACEMENT MAXIMUM NUMBER OF CONDUITS FIGURE 4 PLAN VIEW UGPS G © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG708.1 1 OF 3 UNDERGROUND PULL SECTION, 0–600V

B TABLE 1 MINIMUM PULL SECTION DIMENSIONS G WIDTH Z (IN) PULL SECTION RATING LUG HEIGHT (AMPS) Y (IN) 3W 4W 0 - 400 10 14 22 - 72 401 - 800 16 22 26 – 72 801 – 1,200 -- 30 26 – 72 1,201 – 2,000 -- 35 42 - 72 2,001 – 3,000 -- 42 60 - 72 3,001 – 4,000 -- 44 60 - 72 INSTALLATION: A UNDERGROUND SERVICE LATERAL CONDUITS SHALL ENTER THE BOTTOM OF THE UGPS. THE GROUNDING ELECTRODE AND/OR GROUNDING ELECTRODE CONDUCTOR WILL NOT BE PERMITTED WITHIN THE UTILITY PORTION OF THE UGPS. NO OTHER CONDUCTORS, EQUIPMENT OR CONNECTIONS ARE PERMITTED IN THE SHADED AREA. a B BOLT TERMINATIONS ARE REQUIRED FOR ALL UGPS. SEE TABLE 1 FOR MINIMUM AND MAXIMUM TERMINATION HEIGHTS. THE UTILITY WILL PROVIDE THE TERMINATION LUGS, CONNECT THE SERVICE LATERAL CONDUCTORS TO THE TERMINATION LUGS, AND CONNECT TO THE CUSTOMER-PROVIDED TWO-BOLT TERMINATION BUS STUBS. b C BUS BARS OR CABLES MAY EXTEND FROM THE UGPS INTO SWITCHBOARD SERVICE SECTIONS RATED UP TO 800A. BUS BARS ARE REQUIRED WHEN THE SERVICE SECTION RATING EXCEEDS 800A, OR WHEN A MULTIPLE METERING SECTION(S) IS SUPPLIED.

D SERVICE CONDUCTORS MUST TERMINATE IN THE UGPS AND SHALL NOT BE PULLED THROUGH THE UGPS TO LAND ON A MAIN OR CURRENT TRANSFORMER (CT) BUS. E THIS DIMENSION, SHOWN IN TABLE 1, IS THE MINIMUM WIDTH OF THE UGPS ACCESS OPENING AND IS MEASURED BETWEEN LEFT SIDE AND RIGHT SIDE RETURN FLANGES, NOT INTERIOR WALLS OF THE UGPS. F ALL UGPS SHALL HAVE FULL FRONT ACCESS. COVER PANELS SHALL BE REMOVABLE, SEALABLE, PROVIDED WITH TWO LIFTING HANDLES, AND LIMITED TO A MAXIMUM OF 9 SQUARE FEET IN AREA. SEALING PROVISIONS SHALL CONSIST OF TWO DRILLED STUD AND WING-NUT ASSEMBLIES ON OPPOSITE SIDES OF THE PANEL. THE MINIMUM CLEARANCE FROM ANY ENERGIZED PART TO A REMOVABLE ACCESS COVER PANEL SHALL BE 4 INCHES. THIS CLEARANCE MAY BE REDUCED TO 1 1/2 INCHES WHEN A SAFETY BARRIER IS PROVIDED BY THE MANUFACTURER AS SPECIFIED IN SG709, NOTE H. c h G THERE IS NO MINIMUM DEPTH DIMENSION SHOWN OR REQUIRED BY THE UTILITY. THE DEPTH OF THE EQUIPMENT IS DETERMINED BY MEETING BUS CLEARANCES AND PROVIDING SPACE FOR THE CONDUIT ENTRY. d H MAXIMUM CONDUIT INTRUSION INTO THE UGPS IS 2 INCHES.

J UGPS THAT REQUIRE 2-INCH, 3-INCH, OR 4-INCH CONDUITS MUST ALLOW A MINIMUM OF 3 FEET CLEAR AND LEVEL WORKING SPACE IN FRONT OF THE UGPS. UGPS REQUIRING 5-INCH CONDUITS MUST ALLOW A MINIMUM OF 6 FEET CLEAR AND LEVEL WORKING SPACE IN FRONT OF THE UGPS. e K A MAIN SERVICE OR METER SERVICE DISCONNECT IS NOT PERMITTED ON THE SUPPLY (LINE) SIDE OF A SINGLE METER. BILL OF MATERIALS: NONE NOTES: NONE © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG708.2 2 OF 3 UNDERGROUND PULL SECTION, 0–600V

REFERENCE: a FOR SERVICE LATERAL CONDUIT REQUIREMENTS, SEE SG309. b FOR BOLT TERMINATIONS, SEE SG709. c FOR ADDITIONAL SEALING REQUIREMENTS, SEE SG503. d FOR BUS CLEARANCES, SEE SG709. e FOR ADDITIONAL WORKING SPACE CLEARANCE REQUIREMENTS, SEE SG504. f. FOR ELECTRIC METER ROOM REQUIREMENTS, SEE SG506. g. FOR METER CABINET REQUIREMENTS, SEE SG509. h SEE SG709, NOTE H. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG708.3 3 OF 3 UNDERGROUND PULL SECTION, 0–600V

SCOPE: THIS STANDARD PROVIDES THE REQUIREMENTS FOR CABLE TERMINATION BUS STUBS IN UNDERGROUND PULL CANS OR UNDERGROUND PULL SECTIONS (UGPS). 2” 2” MIN. 2 1/2” MAX. 1/2” BOLTS FIGURE 1 FIGURE 1 TERMINATING BOLT AND F TERMINATING BOLT AND F DRILLING DETAIL DRILLING DETAIL SINGLE POSITION 4” 6” BOLT HOLES FOR 1/2” BOLTS 1 3/4” 2” 2” 2” FIGURE 1 TERMINATING BOLT AND DRILLING DETAIL B F MULTIPLE POSITION © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG709.1 1 OF 6 CABLE TERMINATION BUS STUBS IN UNDERGROUND PULL CANS OR PULL SECTIONS

COVER BACK 4” MIN. 1” MIN. 1” MIN. FIGURE 2 SPACING REQUIREMENTS FOR TERMINATING FACILITIES G (SIDE BY SIDE OR STAGGERED) PULL CANS 801A – 1,200A BACK WALL 1” MIN. 1 1/2” MIN. 1 1/2” MIN. 3/4” 1 1/2” MIN. 3/4” 4” MIN. H FOR EXCEPTION REMOVABLE FRONT COVER PANEL FIGURE 2 SPACING REQUIREMENTS FOR TERMINATING FACILITIES E (SIDE BY SIDE OR STAGGERED) SWITCHBOARD PULL SECTIONS © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG709.2 2 OF 6 CABLE TERMINATION BUS STUBS IN UNDERGROUND PULL CANS OR PULL SECTIONS

2 3 1 2 10” 8” MIN. MIN. 8” 8” MIN. MIN. 6” MIN. E 1 1/2” MIN. 4 6” 6” 5 C MIN. MIN. B2 FOR EXCEPTION FIGURE 3 SPACING REQUIREMENTS FOR TERMINATING FACILITIES C D SEE TABLE 1 TABLE 1 SPACING REQUIREMENTS DESCRIPTION LIST ITEM DESCRIPTION 1 ACCESSIBLE FROM FRONT ONLY 2 ACCESSIBLE FROM ONE SIDE ONLY 3 ACCESSIBLE FROM EITHER SIDE 4 BOLT HOLES 5 BOLTS SECURED IN PLACE © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG709.3 3 OF 6 CABLE TERMINATION BUS STUBS IN UNDERGROUND PULL CANS OR PULL SECTIONS

1 1/2” MIN. 8” MIN. 1 1/2” MIN. 6” MIN. 3” MIN. F 3” MIN. F 10” F MIN. WIDTH OF BUS 6” MIN . FIGURE 4 REQUIRED UNOBSTRUCTED WORKING SPACE FOR ALL TERMINATIONS 1 1/2” MIN. 1 1/2” MIN. 1 1/2” MIN. 1 1/2” MIN. 5 D a FIGURE 5 SPACING REQUIREMENTS FOR TOP TO BOTTOM STAGGER OF TERMINATING FACILITIES FRONT VIEW SEE TABLE 1 © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG709.4 4 OF 6 CABLE TERMINATION BUS STUBS IN UNDERGROUND PULL CANS OR PULL SECTIONS

INSTALLATION: A. BOLT TERMINATIONS SHOWN IN FIGURES 1 THROUGH 5 ARE REQUIRED FOR PULL CANS RATED OVER 800A, AND ALL UGPS (FREE STANDING). B ONE LANDING POSITION IS REQUIRED FOR EACH 400A, OR PORTION THEREOF, OF SERVICE CAPACITY. 1. EACH LANDING POSITION SHALL CONSIST OF TWO 1/2-INCH STEEL BOLTS SPACED ON 1 3/4-INCH VERTICAL CENTERS AND EXTENDING FROM 2 TO 2 1/2 INCHES FROM THE MOUNTING SURFACE. WHEN MULTIPLE POSITIONS ARE REQUIRED, PROVIDE A MINIMUM OF 2 INCHES OF HORIZONTAL SPACING BETWEEN POSITIONS. 2 EXCEPTION: EDGEWISE TERMINATING FACILITIES MAY CONSIST OF 9/16-INCH HOLES HAVING THE SAME SPACING AS SPECIFIED FOR THE 1/2-INCH BOLTS ABOVE. THE UNOBSTRUCTED WORKING SPACE SHALL BE PROVIDED ON BOTH SIDES OF TERMINATION BUS. C EACH TERMINATING BOLT SHALL BE PROVIDED WITH A SPRING WASHER AND A NUT. THE SPRING WASHER MAY BE EITHER A CONE-TYPE (BELLEVILLE) WASHER OR A SPLIT-RING WASHER AND A FLAT WASHER. ALL PARTS SHALL BE PLATED TO PREVENT CORROSION. TERMINATING BOLTS SHALL NOT BE USED TO SECURE TERMINATION BUS IN PLACE. D TERMINATING BOLTS MUST BE SECURED IN PLACE.

“SECURED IN PLACE” SHALL MEAN THAT THE STUD WILL NOT TURN, BACK OUT, OR LOOSEN IN ANY MANNER WHEN TIGHTENING OR LOOSENING TERMINAL NUTS (INCLUDING CROSS-THREADED SITUATIONS). E EACH TERMINATING FACILITY SHALL HAVE AN UNOBSTRUCTED WORKING SPACE, ACCESSIBLE FROM FRONT OF THE UGPS AS VIEWED FROM ACCESS COMPARTMENT OPENING, IN FRONT OF ENTIRE MOUNTING SURFACE AS SHOWN IN FIGURES 3 AND 4. NO MORE THAN ONE TERMINATION FACILITY MAY BE MOUNTED ALONG A SIDE WALL. WHEN VIEWED FROM FRONT OF THE PULL CAN OR UGPS, NO OTHER TERMINATION OR CABLES IN PLACE SHALL IMPAIR THE 8-INCH MINIMUM WORKING CLEARANCE. UNINSULATED BUSSES OF DIFFERENT POTENTIALS SHALL NOT BE PERMITTED BELOW OR BEHIND ANY TERMINATING POSITION AS VIEWED FROM FRONT OF THE UGPS. IF CROSS-BUSSING IS INSTALLED BELOW OR BEHIND A TERMINATING POSITION, CROSS- BUSSING SHALL BE FULLY INSULATED OR BARRIERED. 1. EXCEPTION: FOR TERMINATING FACILITIES WITH BOLTS FACING THE ACCESS OPENING, THE REQUIRED 1 1/2-INCH SIDE CLEARANCE (BUS TO ACCESS OPENING RETURN FLANGE) MAY BE REDUCED TO 3/4 INCH.

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© 1998 - 2024 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG709.5 5 OF 6 CABLE TERMINATION BUS STUBS IN UNDERGROUND PULL CANS OR PULL SECTIONS

INSTALLATION (CONT’D): H FOR SWITCHBOARD PULL SECTIONS, THE MINIMUM CLEARANCE FROM ANY ENERGIZED PART TO A REMOVABLE ACCESS COVER PANEL SHALL BE 4 INCHES. THIS CLEARANCE MAY BE REDUCED TO 1 1/2 INCHES WHEN A SAFETY BARRIER IS PROVIDED BY THE MANUFACTURER. THE SAFETY BARRIER SHALL CONFORM TO THE FOLLOWING: 1. BE CONSTRUCTED OF A RIGID INSULATING MATERIAL, RESISTANT TO DAMAGE BY IMPACT OR PUNCTURE, WITH A MINIMUM THICKNESS OF 1/8-INCH. 2. EXTEND A MINIMUM OF 10 INCHES BELOW TERMINATING BUS AND EXTEND UPWARD TO COVER ALL ENERGIZED PARTS THAT INFRINGE INTO THE 4-INCH MINIMUM CLEARANCE DIMENSION, AND BE REMOVABLE. ATTENTION: * BRACKETS AND ASSOCIATED HARDWARE USED TO MOUNT THE SAFETY BARRIER SHALL NOT EXTEND INTO THE PROVIDED ACCESS OPENING. 3. HAVE A CAUTION SIGN AFFIXED TO THE BARRIER READING: "WARNING: THE BARRIER MUST BE INSTALLED BEFORE REPLACING PULL SECTION COVERS". 4. HAVE ADDITIONAL CAUTION SIGNS AFFIXED TO EXTERIOR OF EACH SECTION ACCESS COVER READING: "DO NOT REPLACE PULL SECTION COVERS UNTIL SAFETY BARRIER IS IN PLACE". 5.

SCREWS OR BOLTS REQUIRING SPECIAL TOOLS FOR INSTALLATION OR REMOVAL ARE NOT ACCEPTABLE. BILL OF MATERIALS: NONE NOTES: NONE REFERENCE: a FOR MINIMUM TERMINATION HEIGHTS, SEE SG706 OR SG708, WHICHEVER IS APPLICABLE. © 1998 - 2024 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM JTM IWA KRG 11/18/2024 E A EDITORIAL CHANGES - LSM CTG TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG709.6 6 OF 6 CABLE TERMINATION BUS STUBS IN UNDERGROUND PULL CANS OR PULL SECTIONS

PAGE SUBJECT 802 CUSTOMER GENERATION ALPHABETICAL SUBJECT INDEX 803 GENERAL INFORMATION 804 STAND-BY GENERATOR SAFETY TRANSFER SWITCH 805 STAND-BY GENERATOR 806 DISTRIBUTED GENERATION 807 DISTRIBUTED GENERATION - METERING 808 DISTRIBUTED GENERATION - METERING SAFETY SOCKET METER CAN 809 DISTRIBUTED GENERATION - METERING TRANSFORMER RATED METER PANEL 810 DISTRIBUTED GENERATION - METERING CLEARANCE REQUIREMENTS 811 DISTRIBUTED GENERATION - METERING TYPICAL BILLING AND POWER PURCHASE METERS © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/03/2025 E A NEW PAGE - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG801.1 1 OF 1 CUSTOMER GENERATION TABLE OF CONTENTS

SUBJECT PAGE CUSTOMER GENERATION CONNECTION OF CUSTOMER-OWNED POWER GENERATORS TO SDG&E’S ELECTRICAL SYSTEM........................................ 803.1 DIRECTORY.................................................................................................................................................................. 803.1 GENERAL INFORMATION.................................................................................................................................................. 803 NET GENERATION OUTPUT METERING........................................................................................................................... 803.1 PERMANENTLY OR TEMPORARILY CONNECTED STANDBY GENERATORS............................................................... 803.2 – 803.3 VIOLATIONS................................................................................................................................................................. 803.2

WARNING STATEMENTS AND LABELS............................................................................................................................ 803.2 DISCONNECTION DEVICES....................................................................................................................................... 806.3 – 806.4 CIRCUMSTANCES REQUIRING DISCONNECTS................................................................................................................. 806.4 INVERTER-BASED DEVICES........................................................................................................................................... 806.3 UTILITY AC DISCONNECT REQUIREMENTS..................................................................................................................... 806.4 DISTRIBUTED GENERATION............................................................................................................................................. 806-811

ACCESSIBILITY............................................................................................................................................................. 807.6 BILLING POWER AND PURCHASE METERING.................................................................................................................. 807.3 DISCONNECTION DEVICES................................................................................................................................ 806.3 – 806.4 DISCONNECTION OF GENERATOR................................................................................................................................. 807.6 GENERAL INFORMATION.................................................................................................................................................. 806 INTERCONNECTION PROCESS....................................................................................................................................... 806.3

INTERCONNECTION REQUEST REQUIREMENTS.............................................................................................................. 806.3 NET GENERATION OUTPUT METERING..................................................................................................................... 807 – 811 TELEMETERING............................................................................................................................................................ 807.6 TRANSFORMER REQUIREMENTS.................................................................................................................................... 807.6 INSPECTION REQUIREMENTS........................................................................................................................... 803.2, 807.3, 807.6 INTERCONNECTION PROCESS............................................................................................................................................... 806.3

INTERCONNECTION REQUEST REQUIREMENTS...................................................................................................................... 806.3 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/03/2025 E A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG802.1 1 OF 2 CUSTOMER GENERATION ALPHABETICAL SUBJECT INDEX

SUBJECT PAGE METERING BILLING AND PURCHASE OF ENERGY METERING.................................................................................................. 811.1, 807.3 NET GENERATION OUTPUT METERING – GENERAL INFORMATION AND INSTALLATION............................................. 807, 809.1 TYPICAL METERING DEVICES REQUIRED AND INSTALLED BY SDG&E............................................................................... 807.5 OPERATING REQUIREMENTS................................................................................................................................................ 806.3 STANDBY GENERATORS, PERMANENTLY OR TEMPORARILY CONNECTED GENERAL INFORMATION............................................................................................................................................... 803.2 GENERATORS CONNECTED PERMANENTLY BUT NOT OPERATING IN PARALLEL WITH SDG&E’S SYSTEM............................ 803.3 GENERATORS NOT PERMANENTLY CONNECTED.................................................................................................

803.2 – 803.3 STAND-BY GENERATOR SAFETY TRANSFER SWITCH.......................................................................................................... 804 TRANSFER SYSTEMS...................................................................................................................................... 803.3, 804, 805 VIOLATIONS................................................................................................................................................................. 803.2 WARNING STATEMENTS AND LABELS............................................................................................................................ 803.2 WORKING CLEARANCE REQUIREMENTS FROM SDG&E-OWNED ELECTRIC METER AND GAS METER ASSEMBLY........................... 810.1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/03/2025 E

A EDITORIAL CHANGES - LSM LSM TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG802.2 2 OF 2 CUSTOMER GENERATION ALPHABETICAL SUBJECT INDEX

SCOPE: THIS STANDARD DISCUSSES INSTALLATION REQUIREMENTS FOR CUSTOMER-OWNED GENERATORS. ATTENTION: * ALL INSTALLATIONS OF CUSTOMER-OWNED ELECTRIC ENERGY PRODUCTION EQUIPMENT (HEREINAFTER REFERRED TO AS GENERATOR OR GENERATORS) REQUIRE ADHERENCE TO RULES FOR SAFEGUARDING OF PERSONNEL, SDG&E-OWNED, AND CUSTOMER-OWNED EQUIPMENT. ** SDG&E (UTILITY) SHALL BE CONSULTED BEFORE A GENERATOR IS CONNECTED TO ANY CIRCUIT WHICH IS, OR CAN BE SUPPLIED FROM THE UTILITY’S ELECTRICAL SYSTEM. THIS IS TO ENSURE AGAINST ANY UNANTICIPATED BACKFEED OF ELECTRICITY INTO THE UTILITY’S SYSTEM, AND COMPLIANCE WITH THE UTILITY'S TARIFFS. *** THIS STANDARD DOES NOT APPLY TO PORTABLE GENERATORS UNDER CIRCUMSTANCES WHEN A CUSTOMER'S CORD AND PLUG APPLIANCES ARE CONNECTED DIRECTLY TO THE GENERATOR'S RECEPTACLES. DEFINITIONS: • POSITIVE MEANS: A DEVICE WHICH, BY ITS USE OR OPERATION, INTERRUPTS OR PREVENTS THE FLOW OF CURRENT TO OR FROM THE ELECTRICAL SYSTEM AND WHICH PROVIDES THE DEVICE OPERATOR OR USER A VISUAL OR OTHER DEFINITE INDICATION OF THE EXISTING CONDITION OR STATE OF THE ELECTRICAL SYSTEM.

INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. DIRECTORY: A PERMANENT PLAQUE OR DIRECTORY, SPECIFYING ALL ELECTRICAL POWER SOURCES ON OR IN THE PREMISES, SHALL BE INSTALLED AT EACH SERVICE EQUIPMENT LOCATION (SERVICE DELIVERY POINT) OF ALL GENERATORS CAPABLE OF BEING INTERCONNECTED TO THE UTILITY’S ELECTRICAL SYSTEM. INSTALLATIONS WITH MULTIPLE GENERATORS MAY BE DESIGNATED IN GROUPS ON THE PLAQUE. a II. NET GENERATION OUTPUT METERING: EXCEPT FOR EMERGENCY OR STANDBY GENERATORS USED SOLELY DURING UTILITY OUTAGES AND NOT CAPABLE OF OPERATING IN PARALLEL WITH THE UTILITY’S SYSTEM, CUSTOMER-OWNED GENERATORS MAY REQUIRE THE INSTALLATION OF NET GENERATION OUTPUT METERING (NGOM) TO SATISFY REQUIREMENTS ASSOCIATED WITH OTHER SERVICES APPLICABLE TO OR REQUESTED BY A CUSTOMER. UNDER CIRCUMSTANCES WHEN NGOM IS REQUIRED, SUCH REQUIREMENTS MAY BE WAIVED WHERE LESS INTRUSIVE AND/OR MORE COST EFFECTIVE OPTIONS ARE AVAILABLE FOR PROVIDING GENERATOR PRODUCTION DATA TO THE UTILITY. b III. CONNECTION OF CUSTOMER-OWNED GENERATORS TO SDG&E’S ELECTRICAL SYSTEM: a.

THE LEGISLATURE OF THE STATE OF CALIFORNIA INTENDED TO PREVENT ELECTRICITY GENERATED BY PERMANENT OR PORTABLE ELECTRIC GENERATORS FROM BACK FEEDING INTO A UTILITY ELECTRICAL SYSTEM BY ENACTING THE CALIFORNIA HEALTH AND SAFETY CODE, DIVISION 104, PART 15, CHAPTER 5, SECTIONS 119075 THROUGH 119090. c b. IN ADDITION, CALIFORNIA CODE OF REGULATIONS, TITLE 8, SECTION 2320.9, STATES: NO ELECTRICAL POWER SOURCE, PERMANENT OR TEMPORARY, SHALL BE CONNECTED TO A PREMISES WIRING SYSTEM, OR PARTS OF SUCH A SYSTEM, UNLESS POSITIVE MEANS ARE USED TO PREVENT THE TRANSMISSION OF ELECTRICITY BEYOND THE PREMISES WIRING SYSTEM, OR BEYOND ANY INTENTIONALLY SEGREGATED PARTS OF SUCH A SYSTEM. EXCEPTION: WHEN AN INTERCONNECTION HAS BEEN AUTHORIZED BY THE SERVICING UTILITY. d © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/03/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG803.1 1 OF 4 GENERAL INFORMATION

NOTES (CONT’D): IV. WARNING STATEMENTS AND LABELS: a. CALIFORNIA HEALTH AND SAFETY CODE, SECTION 119080(a), REQUIRES: EVERY MANUFACTURER OF A PORTABLE OR PERMANENT ELECTRICAL GENERATOR THAT IS CAPABLE OF BEING CONNECTED EITHER PERMANENTLY OR TEMPORARILY TO A COMMERCIAL, INDUSTRIAL OR RESIDENTIAL STRUCTURE’S ELECTRICAL SYSTEM, SHALL INCLUDE A WARNING STATEMENT IN THE GENERATOR’S INSTRUCTION MANUAL AND A LEGIBLE WARNING LABEL ON THE GENERATOR WHICH STATES THE REQUIREMENT OF SECTION 119075 AND EXPLAINS THE ELECTRICAL HAZARDS OF BACKFEED INTO A UTILITY'S DISTRIBUTION SYSTEM. THE SAME WARNING INFORMATION SHALL BE INCLUDED IN ALL ADVERTISEMENTS OFFERING PORTABLE ELECTRICAL GENERATORS. e b. CALIFORNIA HEALTH AND SAFETY CODE, SECTION 119080(a) STATES: NO PERSON OR PUBLIC AGENCY SHALL SELL, RENT TO ANOTHER PERSON OR PUBLIC AGENCY, OR OFFER FOR SALE OR RENT TO ANOTHER PERSON OR PUBLIC AGENCY A PORTABLE ELECTRICAL GENERATOR UNLESS THE LEGIBLE WARNING LABEL IS ON A VISIBLE SURFACE OF THE GENERATOR. f V. VIOLATIONS: CALIFORNIA HEALTH AND SAFETY CODE, SECTION 119090(a), STATES:

ANY PERSON WHO VIOLATES SECTIONS 119075 TO 119085, INCLUSIVE, IS GUILTY OF A MISDEMEANOR, AND SUBJECT TO A FINE OF NOT MORE THAN FIVE HUNDRED DOLLARS ($500) OR NOT MORE THAN SIX MONTHS' IMPRISONMENT. g PERMANENTLY OR TEMPORARILY CONNECTED STANDBY GENERATORS: VI. GENERAL INFORMATION: a. WHEN A GENERATOR IS PERMANENTLY OR TEMPORARILY CONNECTED TO A CUSTOMER'S ELECTRIC SYSTEM, IT HAS THE POTENTIAL TO ENERGIZE THE BUILDING’S WIRING. THIS TYPE OF INSTALLATION REQUIRES A DEVICE THAT ISOLATES THE GENERATOR FROM THE UTILITY'S ELECTRICAL SYSTEM. REFER TO NOTE IX, TRANSFER SYSTEMS, FOR THE REQUIREMENTS OF SUCH ISOLATION DEVICES. b. THE GENERATOR MUST BE 60-HERTZ ALTERNATING CURRENT. IF A DIRECT CURRENT GENERATOR IS USED, THE INSTALLATION MUST BE ARRANGED SO THAT ALL MOTORS, RADIOS, AND OTHER EQUIPMENT THAT WILL NOT OPERATE ON DIRECT CURRENT ARE DISCONNECTED FROM CIRCUITS BEFORE THE CIRCUITS ARE ENERGIZED FROM THE GENERATOR. c. ONLY A QUALIFIED PROFESSIONAL, SUCH AS A LICENSED ELECTRICAL CONTRACTOR, SHOULD INSTALL A PERMANENTLY OR TEMPORARILY CONNECTED STANDBY GENERATOR. d.

A PERMIT AND INSPECTION BY THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ) ARE REQUIRED FOR ALL PERMANENT AND TEMPORARY CONNECTIONS OF GENERATORS TO THE CUSTOMER’S ELECTRICAL SYSTEM(S). e. WHEN INSTALLATION IS COMPLETE, THE CUSTOMER MUST CALL THE UTILITY AT (800) 411-SDGE (7343) AND PROVIDE THE ADDRESS OF THE GENERATOR LOCATION. VII. GENERATORS NOT PERMANENTLY CONNECTED (TEMPORARY CONNECTIONS): a. ANY PORTABLE ELECTRIC GENERATOR CONNECTED TO SDG&E MUST COMPLY WITH CALIFORNIA HEALTH & SAFETY CODE, SECTION 119075. SECTION 119075(b) STATES: ANY PORTABLE ELECTRICAL GENERATOR THAT IS CAPABLE OF BEING CONNECTED TEMPORARILY TO A CUSTOMER'S ELECTRICAL SYSTEM, THAT IS NORMALLY SUPPLIED BY AN ELECTRICAL CORPORATION OR STATE OR LOCAL PUBLIC AGENCY, SHALL BE CONNECTED ONLY AFTER OPENING THE CUSTOMER'S MAIN SWITCH SO AS TO ISOLATE THE CUSTOMER'S ELECTRICAL SYSTEM FROM THAT OF THE ELECTRICAL CORPORATION OR STATE OR LOCAL AGENCY. h © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

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NOTES (CONT’D): PERMANENTLY OR TEMPORARILY CONNECTED STANDBY GENERATORS (CONT’D): VII. GENERATORS NOT PERMANENTLY CONNECTED (TEMPORARY CONNECTIONS) (CONT’D): b. ARTICLE 702.5 OF THE 2014 NATIONAL ELECTRICAL CODE (NEC) REQUIRES TRANSFER EQUIPMENT “SUITABLE FOR THE INTENDED USE AND DESIGNED AND INSTALLED [SO AS] TO PREVENT THE INADVERTENT INTERCONNECTION OF NORMAL AND ALTERNATE SOURCES OF SUPPLY IN ANY OPERATION OF THE TRANSFER EQUIPMENT.” A MAIN BREAKER OR FUSE, WHICH IS NOT LISTED AS SUITABLE FOR USE AS TRANSFER EQUIPMENT, CANNOT BE USED AS THE TRANSFER DEVICE BETWEEN TEMPORARILY CONNECTED PORTABLE GENERATORS AND THE UTILITY’S SYSTEM. THIS APPLIES TO ANY GENERATOR CONNECTED AS A TEMPORARY (NON-ROUTINE, NONSCHEDULED) OR EMERGENCY SOURCE OF ELECTRIC ENERGY. ANY PORTABLE ELECTRIC GENERATOR USED AS A TEMPORARY SOURCE OF POWER SHALL BE CONNECTED AS DESCRIBED IN NOTE IX, TRANSFER SYSTEMS. i GENERATORS CONNECTED PERMANENTLY BUT NOT OPERATING IN PARALLEL WITH SDG&E: ALL GENERATORS IN THIS CATEGORY ARE TO BE CONNECTED IN ACCORDANCE WITH SDG&E'S CPUC-APPROVED TARIFFS AND

CALIFORNIA HEALTH AND SAFETY CODE 119075(c), WHICH STATES: ANY ELECTRICAL GENERATOR, OTHER THAN A GENERATOR DESIGNED TO RUN IN PARALLEL WITH THE SYSTEM OF THE SERVICING UTILITY AND APPROVED BY THAT UTILITY, THAT IS CAPABLE OF BEING PERMANENTLY CONNECTED TO A CUSTOMER'S ELECTRICAL SYSTEM SHALL BE CONNECTED ONLY BY MEANS OF A DOUBLE THROW SWITCH SO AS TO ISOLATE THE CUSTOMER'S ELECTRICAL SYSTEM FROM THAT OF THE ELECTRICAL CORPORATION OR STATE OR LOCAL AGENCY. j IX. TRANSFER SYSTEMS: a. SERVICE EQUIPMENT RATED TRANSFER: TRANSFER SWITCHES LISTED AND LABELED AS SUITABLE FOR USE AS SERVICE EQUIPMENT ARE PERMITTED FOR USE AS MAIN SERVICE EQUIPMENT UPON PRIOR APPROVAL FROM THE UTILITY. ALL OTHER TRANSFER SWITCHES SHALL BE CONNECTED ON THE LOAD SIDE OF THE MAIN SERVICE EQUIPMENT. b. OPEN-TRANSITION SWITCHING: A DOUBLE THROW SWITCH WITH A MECHANICALLY DRIVEN BREAK-BEFORE-MAKE SEQUENCE SHALL NORMALLY BE PROVIDED TO TRANSFER ALL UNGROUNDED CONDUCTORS OF AN EMERGENCY LIGHTING OR POWER LOAD TO EITHER THE GENERATOR OR THE NORMAL SUPPLY.

MANUAL TRANSFER SWITCH INSTALLATIONS DO NOT REQUIRE REVIEW AND APPROVAL BY THE UTILITY PRIOR TO INSTALLATION. k c. CLOSED-TRANSITION SWITCHING AND AUTO TRANSFER: REQUESTS FOR CLOSED-TRANSITION SWITCHING (MAKE-BEFORE-BREAK) AND AUTOMATIC TRANSFER SYSTEMS, WITH A SOLID STATE OR PROGRAMMABLE LOGIC CONTROLLER, REQUIRE SPECIFICATION SUBMITTAL AND MUST BE APPROVED BY THE UTILITY. THE CUSTOMER'S SUBMITTAL SHALL INCLUDE ALL OF THE FOLLOWING: SYSTEM DESCRIPTION, ONE-LINE RELAY FUNCTIONAL DIAGRAM, LOGIC CONTROLLER PROGRAM, AND BILL OF MATERIALS. CLOSED-TRANSITION SWITCHING LIMITING PARALLEL OPERATION WITH THE UTILITY TO NO GREATER THAN 1 SECOND (60 CYCLES) DOES NOT REQUIRE A WRITTEN AGREEMENT WITH THE UTILITY. THE CUSTOMER WILL RECEIVE AN APPROVAL OR REQUEST FOR CHANGES AFTER THE UTILITY’S REVIEW OF THE REQUEST HAS BEEN COMPLETED. SUBMITTALS SHOULD BE SENT ELECTRONICALLY TO: DRAWINGSUBMITTALS@SDGE.COM d. SEPARATELY DERIVED SYSTEMS: WHEN AN AC GENERATOR IS INSTALLED AS A SEPARATELY DERIVED SYSTEM, GROUNDING OF THE NEUTRAL CONDUCTOR SHALL BE IN ACCORDANCE WITH THE CALIFORNIA ELECTRICAL CODE.

SEPARATELY DERIVED SYSTEMS REQUIRE A SWITCHED NEUTRAL CONDUCTOR AT THE TRANSFER SWITCH. FIGURES ON SG804 AND SG805 DO NOT SHOW THIS SYSTEM CONFIGURATION. k l e. KIRK KEY INTERLOCKS ARE NOT AN ACCEPTABLE SUBSTITUTE FOR A DOUBLE THROW TRANSFER SWITCH TO PREVENT INADVERTENT INTERCONNECTION WITH THE SERVING UTILITY. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/03/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG803.3 3 OF 4 GENERAL INFORMATION

REFERENCE: a FOR PLAQUE SPECIFICATIONS, SEE SG017. b FOR ADDITIONAL INFORMATION ABOUT NGOM, SEE SG806. c SEE CALIFORNIA HEALTH AND SAFETY CODE, DIVISION 104, PART 15, CHAPTER 5, SECTIONS 119075 THROUGH 119090. d SEE CALIFORNIA CODE OF REGULATIONS, TITLE 8, SECTION 2320.9. e SEE CALIFORNIA HEALTH AND SAFETY CODE, SECTION 119080(a). f SEE CALIFORNIA HEALTH AND SAFETY CODE, SECTION 119080(b). g SEE CALIFORNIA HEALTH AND SAFETY CODE, SECTION 119090(a). h SEE CALIFORNIA HEALTH & SAFETY CODE, SECTION 119075. i SEE THE 2020 NATIONAL ELECTRICAL CODE (NEC), ARTICLE 702.5. j SEE CALIFORNIA HEALTH & SAFETY CODE, SECTION 119075(c). k FOR TYPICAL CONNECTIONS, SEE SG805. l SEE SG804. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/03/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG803.4 4 OF 4 GENERAL INFORMATION

SCOPE: THIS STANDARD SHOWS A STAND-BY GENERATOR SAFETY TRANSFER SWITCH. TO MAIN SERVICE EQUIPMENT AND UTILITY METER NEUTRAL LINE 1 I TO DISTRIBUTION PANEL (LOAD) LOAD NEUTRAL II LINE 2 NEUTRAL BUS III TO GENERATOR FIGURE 1 STAND-BY ELECTRIC GENERATOR SAFETY TRANSFER SWITCH TYPICAL LAYOUT ATTENTION: * EQUIPMENT GROUNDING CONDUCTOR FOR BONDING PURPOSES NOT SHOWN. INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. SWITCH UP POSITION FOR UTILITY POWER II. SWITCH DOWN POSITION FOR GENERATOR POWER III. MOUNTED ON SIDE WALL INSIDE ENCLOSURE IV. NEUTRAL WILL BE BONDED TO ENCLOSURE IF TRANSFER SWITCH IS LISTED FOR AND USED AS SERVICE EQUIPMENT. REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B FORMATTING EDM JIK - - 02/03/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG804.1 1 OF 1

STAND-BY GENERATOR SAFETY TRANSFER SWITCH

SCOPE: THIS STANDARD DESCRIBES STAND-BY GENERATORS. 1 9 TO LOAD 5 III 6 9 9 LINE I NEUTRAL I LINE I 3 4 2 9 4 9 FIGURE 1 CONNECTION OF STAND-BY GENERATOR SUPPLYING CUSTOMER’S ENTIRE LOAD SEE TABLE 1 7 14 9 9 8 9 9 10 9 90 15 90 9 6 13 9 8 10 11 9 90 9 90 90 5 III 11 9 19 12 90 FIGURE 2 FIGURE 2 STAND-BY GENERATOR NON-PARALLEL STAND-BY GENERATOR NON-PARALLEL OPERATION WITH UTILITY OPERATION WITH UTILITY SEE TABLE 1 ONE-LINE DIAGRAM SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/03/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG805.1 1 OF 4 STAND-BY GENERATOR

IV 8 LINE 9 NEUTRAL LINE TO LOAD TO LOAD VI 10 2 9 V 5 III 2 19 9 TO LOAD 9 6 9 TO LOAD 18 3 9 FIGURE 3 CONNECTION OF STAND-BY GENERATOR SUPPLYING ONE 120V CIRCUIT WIRING DIAGRAM SEE TABLE 1 TO UTILITY 8 9 CUSTOMER MAIN 10 CUSTOMER LOAD 19 V PARTIAL CUSTOMER LOAD 6 9 5 III 9 FIGURE 3 CONNECTION OF STAND-BY GENERATOR SUPPLYING ONE 120V CIRCUIT ONE-LINE DIAGRAM SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/03/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG805.2 2 OF 4 STAND-BY GENERATOR

BUILDING BUILDING (BARN #2) (HOUSE) III 5 10 9 90 6 9 16 II 90 IV 8 V 17 9 90 BUILDING (BARN #1) FIGURE 4 CONNECTION OF STAND-BY GENERATOR TO A PORTION OF CUSTOMER LOAD VII VIII SERVED FROM SINGLE UTILITY SERVICE ONE-LINE DIAGRAM SEE TABLE 1 18 6 2 17 V II 16 3 90 9 9 90 9 8 IV 9 III 5 9 LINE NEUTRAL LINE 6 TO A TO A 9 BUILDING BUILDING 2 (BARN 1) 10 (HOUSE) 9 90 TO SERVICE EQUIPMENT IN BUILDING (BARN 2) VI FIGURE 4 CONNECTION OF STAND-BY GENERATOR TO A PORTION OF CUSTOMER LOAD VII VIII SERVED FROM SINGLE UTILITY SERVICE WIRING DIAGRAM SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C F B EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/03/2025 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG805.3 3 OF 4 STAND-BY GENERATOR

TABLE 1 FIGURE ITEMS ITEM DESCRIPTION 1 PANEL, DISTRIBUTION 2 BUS, NEUTRAL 3 CONDUCTOR, EQUIPMENT GROUNDING (PER N.E.C.) 4 SWITCH, SAFETY, SERVICE DISCONNECT RATED, DOUBLE-THROW, 2-POLE 5 GENERATOR 6 FUSE, GENERATOR 7 UTILITY SERVICE POINT 8 METER 9 SWITCH, DOUBLE-THROW 10 SERVICE EQUIPMENT, MAIN (CUSTOMER'S) 11 DISTRIBUTION PANEL LOAD CENTER 3 12 WALL, OUTSIDE 13 OPENING THROUGH WALL 14 WALL, INSIDE 15 FUSE POLE, DISTRIBUTION 16 3 SUBSURFACE STRUCTURE 17 SWITCH, TRANSFER, DOUBLE-THROW, 2-POLE 18 BUS, GROUND 3 19 SWITCH, SAFETY, DOUBLE-THROW, 1-POLE (TRANSFER SWITCH) INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I FROM CUSTOMER’S SERVICE EQUIPMENT II CUSTOMER’S III CUSTOMER’S STAND-BY IV UTILITY V RATED FOR INTENDED USE VI FOR WHICH STAND-BY GENERATOR IS PROVIDED VII EXAMPLE SHOWN IS MULTIPLE BUILDINGS IN RURAL AREAS. VIII CONNECTIONS SHOWN ARE FOR UTILITY’S SERVICE BEING SINGLE-PHASE, 3-WIRE, 120/240V. REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

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SCOPE: THIS STANDARD PROVIDES AN OVERVIEW OF SDG&E’S REQUIREMENTS FOR INTERCONNECTING CUSTOMER-OWNED GENERATORS TO SDG&E’S ELECTRIC DISTRIBUTION SYSTEM. ATTENTION: * THIS STANDARD IS NOT INTENDED TO BE A SUBSTITUTE FOR THE SDG&E GENERATION INTERCONNECTION HANDBOOK (INTERCONNECTION HANDBOOK) OR SDG&E’S ELECTRIC RULE 21 (RULE 21) AND SHOULD NOT BE RELIED ON TO DETERMINE THE INTERCONNECTION REQUIREMENTS FOR ANY PROJECT. d ** WHERE THERE IS ANY PERCEIVED OR ACTUAL INCONSISTENCY BETWEEN THIS DOCUMENT AND THE REQUIREMENTS OF RULE 21 OR THE INTERCONNECTION HANDBOOK, RULE 21 SHALL GOVERN. d 1 2 XII M 3 5 LOAD 4 AC DC FIGURE 1 TYPICAL SELF-CONTAINED METER <30 KW AC II III XIe SEE TABLE 1 1 2 XII M 3 5 LOAD 6 4 AC DC FIGURE 2 TYPICAL SELF-CONTAINED METER > 30 KW AC II IV XIe b SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E

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1 M 7 3 5 LOAD 6 4 AC DC FIGURE 3 TYPICAL INSTRUMENT TRANSFORMER RATED METERING INSTALLATION II IV XIe b SEE TABLE 1 TABLE 1 FIGURE ITEMS ITEM DESCRIPTION 1 DISTRIBUTION SYSTEM (SDG&E) 2 METER, POINT OF COMMON COUPLING 3 BREAKER, MAIN 4 BREAKER, PV 5 GENERATOR 6 DISCONNECT, AC 7 METER, CURRENT TRANSFORMER INSTALLATION: NONE BILL OF MATERIALS: NONE NOTES: I. CUSTOMERS PLANNING TO INSTALL A GENERATOR THAT WILL OPERATE IN PARALLEL WITH SDG&E’S ELECTRIC DISTRIBUTION SYSTEM FOR THE PURPOSE OF (1) ONLY SERVING THEIR OWN ELECTRICAL LOAD, (2) SERVING THEIR OWN ELECTRICAL LOAD AND EXPORTING EXCESS POWER TO THE GRID OR (3) ONLY EXPORTING POWER TO THE GRID, MUST SUBMIT AN APPLICATION FOR INTERCONNECTION AND RECEIVE WRITTEN AUTHORIZATION FROM SDG&E TO INTERCONNECT AND OPERATE IN PARALLEL. II A SITE PLACARD IS REQUIRED AT THE SERVICE AND METERING EQUIPMENT. a III A DISCONNECT SWITCH IS HIGHLY RECOMMENDED BUT NOT REQUIRED. REFER TO FIGURE 2 IF INSTALLING A DISCONNECT SWITCH. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved.

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NOTES (CONT’D): IV CUSTOMER SHALL INSTALL A PLACARD ON THE AC DISCONNECT SWITCH LABELED “PV SYSTEM DISCONNECT FOR UTILITY OPERATION” OR “WIND TURBINE, FUEL CELL, BATTERY, ETC., SYSTEM DISCONNECT FOR UTILITY OPERATION”, AS APPROPRIATE. THE AC DISCONNECT SHALL BE IDENTIFIED THE SAME ON THE SITE PLACARD. V. INTERCONNECTION PROCESS: INTERCONNECTION CAN BE ACHIEVED BY MEANS OF EITHER THE RULE 21 PROCESS OR THE WHOLESALE DISTRIBUTION OPEN ACCESS TARIFF (WDAT) PROCESS. BOTH INTERCONNECTION PROCESSES REQUIRE THE CUSTOMER TO COMPLETE A GENERATING FACILITY TECHNICAL REVIEW OR STUDY AND EXECUTE AN INTERCONNECTION AGREEMENT WITH SDG&E BEFORE THE GENERATING FACILITY IS AUTHORIZED TO INTERCONNECT AND OPERATE IN PARALLEL WITH SDG&E’S ELECTRIC SYSTEM. c d e f VI. INTERCONNECTION REQUEST REQUIREMENTS: a. SINGLE-LINE DIAGRAM – A SINGLE-LINE REPRESENTATION OF THE PROPOSED INTERCONNECTION SYSTEM THAT CLEARLY DISTINGUISHES EXISTING EQUIPMENT FROM PROPOSED EQUIPMENT. b. COMPLETED INTERCONNECTION APPLICATION, INCLUDING A COMPLETE SET OF SPECIFICATIONS AS FOLLOWS: MAXIMUM KW RATING NOMINAL OUTPUT VOLTAGE

ALL NECESSARY RELAYS POWER FACTOR MAXIMUM FAULT CURRENT CONTRIBUTION KWH RATING FOR ENERGY STORAGE PROJECTS MAKE AND MODEL OF INVERTER, IF AN INVERTER WILL BE USED c. APPLICABLE FEES AND/OR DEPOSITS d. DOCUMENTATION DEMONSTRATING PROOF OF SITE EXCLUSIVITY/CONTROL VII. OPERATING REQUIREMENTS: THE CUSTOMER SHALL OPERATE THE GENERATING FACILITY, WHETHER PERMANENT OR TEMPORARY, IN ACCORDANCE WITH THE INTERCONNECTION AGREEMENT, SDG&E’S ELECTRIC SERVICE REQUIREMENTS, SDG&E’S CPUC-APPROVED TARIFFS, AND ALL APPLICABLE LAWS, CODES AND ORDINANCES. THE CUSTOMER SHALL NOT BE PERMITTED TO ENERGIZE ANY DE-ENERGIZED PORTION OF SDG&E’S DISTRIBUTION SYSTEM. DISCONNECTION DEVICES: VIII. INVERTER-BASED SYSTEMS: a. CUSTOMERS INSTALLING INVERTER-BASED SYSTEMS LESS THAN 30KW CEC AC WILL NO LONGER BE REQUIRED TO INCLUDE AN AC DISCONNECT SWITCH WHEN THE FACILITY HAS A SELF-CONTAINED BILLING METER (I.E., 0–225A SOCKET-BASED METER OR A 400A CLASS 320 SOCKET-BASED METER). THESE TYPES OF METERS ARE NOT CURRENT TRANSFORMER (CT) RATED AND ARE USED FOR THE VAST MAJORITY OF ALL SDG&E CUSTOMERS. b.

IN LIEU OF AN AC DISCONNECT, THE BILLING METER MAY TEMPORARILY BE REMOVED BY SDG&E TO ISOLATE THE CUSTOMER’S INVERTER FROM THE ELECTRIC DISTRIBUTION SYSTEM TO MAINTAIN OPERATING SAFETY NEEDS DURING AN EMERGENCY OR MAINTENANCE ON SDG&E’S SYSTEM. REMOVAL OF THE BILLING METER WILL RESULT IN LOSS OF ELECTRICAL SERVICE TO THE CUSTOMER’S FACILITY OR RESIDENCE FOR THE DURATION OF TIME THAT WORK IS ACTIVELY IN PROGRESS. HOWEVER, IT IS HIGHLY RECOMMENDED TO INSTALL AN AC DISCONNECT ON ALL GENERATING FACILITIES, REGARDLESS OF SIZE. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/03/2025 Indicates Latest Revision Completely Revised New Page X Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG806.3 3 OF 5 DISTRIBUTED GENERATION

NOTES (CONT’D): IX. CIRCUMSTANCES REQUIRING DISCONNECTS: a. INVERTER-BASED SYSTEMS 30KW CEC AC AND LARGER. b. INVERTER-BASED INTERCONNECTIONS HAVING A CT RATED METER, I.E., ALL METER PANELS OR SWITCHBOARDS EMPLOYING THE USE OF POTENTIAL AND/OR PTS/CTS. c. NON-INVERTER-BASED GENERATORS, INCLUDING ROTATING OR MACHINE-BASED GENERATORS, REGARDLESS OF WHETHER THE SERVICE METER CONFIGURATION IS CT RATED OR SELF-CONTAINED. XI. UTILITY AC DISCONNECT REQUIREMENTS: THE CUSTOMER SHALL FURNISH, INSTALL, OWN AND MAINTAIN AN AC DISCONNECT IN COMPLIANCE WITH THE FOLLOWING: a. A SINGLE, VISIBLE OPEN, LOCKABLE AC DISCONNECT IS REQUIRED TO ISOLATE ALL GENERATION WITHOUT IMPACTING CUSTOMER LOAD. A SINGLE, VISIBLE OPEN, LOCKABLE AC DISCONNECT MUST BE INSTALLED NEAR THE POINT OF COMMON COUPLING (PCC), ALSO REFERRED TO AS THE SERVICE AND METERING EQUIPMENT, AT A LOCATION APPROVED BY SDG&E. ACCEPTABLE METER LOCATIONS ARE GENERALLY: INSIDE THE ELECTRIC METER ROOM. IMMEDIATELY OUTSIDE THE ELECTRIC METER ROOM AT A LOCATION APPROVED BY SDG&E AND THE GOVERNMENTAL AUTHORITY HAVING JURISDICTION (AHJ). g h VIII b.

WHEN ADDING GENERATION TO A FACILITY THAT CURRENTLY HAS GENERATION, THE ADDED GENERATION MUST BE CONNECTED TO THE EXISTING DISCONNECTING DEVICE, OR THE REPLACEMENT DISCONNECTING DEVICE IF A LARGER AMPACITY DEVICE IS REQUIRED SO THAT ALL GENERATION CAN BE ISOLATED WITHOUT IMPACTING CUSTOMER LOAD. c. CONSISTENT WITH METER ROOM ACCESS REQUIREMENTS, ALL DEVICES USED TO DISCONNECT THE GENERATING FACILITY SHALL BE READILY ACCESSIBLE UNDER ALL CONDITIONS AND AT ALL TIMES, 24 HOURS A DAY. THE SWITCH OPERATION SHALL UTILIZE AN OPEN AIR GAP AND SHALL PROVIDE VISIBLE VERIFICATION. h SWITCH BLADES’ JAWS, AND THE AIR-GAP BETWEEN THEM, SHALL BE CLEARLY VISIBLE WHEN THE DISCONNECT IS IN THE OPEN POSITION. THE VISIBLE AIR-GAP MUST BE OBSERVED WITHOUT DISASSEMBLING THE DEVICE. d. THE SWITCH SHALL BE LOCKABLE IN THE OPEN POSITION. THE LOCKING OPERATION SHALL BE ACCOMPLISHED WITH A SINGLE SDG&E LOCK. THE SWITCH PANEL COVER SHALL NOT BE REMOVABLE WITH THE SWITCH PADLOCKED IN THE OPEN POSITION. e CUSTOMERS SHALL INSTALL PLAQUES AT ALL AC DISCONNECTS CLEARLY STATING THEIR PURPOSE IS FOR OPERATION BY THE

UTILITY OR AUTHORIZED EMERGENCY RESPONDERS. VII SELF-CONTAINED VIII EXCEPTION TO THE SINGLE DISCONNECT LIMITATION: WHEN MULTIPLE CUSTOMER GENERATION TECHNOLOGIES ARE INSTALLED ON A PREMISES, I.E. SOLAR, WIND TURBINE, FUEL CELL, BATTERY, ETC., A SINGLE DISCONNECT PER TECHNOLOGY ALL GROUPED AT ONE LOCATION IS ACCEPTABLE WITH ADVANCE SDG&E APPROVAL PRIOR TO FINAL DESIGN AND CONSTRUCTION. UTILITY DISCONNECT TYPE AND LOCATION REQUIRE SDG&E APPROVAL PRIOR TO INSTALLATION. REFERENCE: a FOR SITE PLACARD REQUIREMENTS, SEE SG017. b FOR DISCONNECT REQUIREMENTS, SEE SG511. c FOR DETAILED INFORMATION ADDRESSING THE INTERCONNECTION OF CUSTOMER-OWNED GENERATORS, SEE SDG&E’S WEBSITE: HTTPS://WWW.SDGE.COM/MORE-INFORMATION/CUSTOMER-GENERATION. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E

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REFERENCE (CONT’D): d FOR RULE 21 INFORMATION AND DOCUMENTS, SEE HTTPS://WWW.SDGE.COM/MORE-INFORMATION/CUSTOMER-GENERATION/ELECTRIC-RULE-21. e FOR WDAT INFORMATION AND DOCUMENTS, SEE HTTPS://WWW.SDGE.COM/MORE-INFORMATION/CUSTOMER-GENERATION/WHOLESALE-GENERATOR-TRANSMISSION- INTERCONNECTIONS f FOR SDG&E GENERATION INTERCONNECTION HANDBOOK, SEE HTTPS://WWW.SDGE.COM/MORE-INFORMATION/CUSTOMER-GENERATION/ELECTRIC-RULE-21/DISTRIBUTION-INTERCONNECTION- HANDBOOK g FOR UNACCEPTABLE METER LOCATIONS, SEE SG504. h FOR ELECTRIC METER ROOM ACCESS REQUIREMENTS, SEE SG506. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D EDITORIAL CHANGES/FORMATTING EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET

SG806.5 5 OF 5 DISTRIBUTED GENERATION

SCOPE: THIS STANDARD DISCUSSES METERING OF DISTRIBUTED GENERATION. 1 9 4 I 5 4 II 12 M 7 M 9 9 9 90 9 2 9 M 6 3 9 9 FIGURE 1 NET GENERATION OUTPUT METERING (NGOM) ON LOAD SIDE OF BILLING METER IXa ONE-LINE DIAGRAM SEE TABLE 1 8 9 1 9 B a M D H A 5 II 10 12 M 9 90 90 LOAD D 9 C E F 11 9 G I J K L 90 FIGURE 2 NET GENERATION OUTPUT METERING (NGOM) ON LINE SIDE OF SDG&E BILLING METERS IVa FOR PHOTOVOLTAIC (PV) AND/OR WIND TURBINE (WT) GENERATION VIRTUAL NET METERING AND AGGREGATION ONE-LINE DIAGRAM SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG807.1 1 OF 6 DISTRIBUTED GENERATION METERING

TABLE 1 FIGURE ITEMS ITEM DESCRIPTION 1 DISTRIBUTION SYSTEM (SDG&E) 2 METER, POINT OF COMMON COUPLING 3 LOADS, CUSTOMER’S HOST 4 DISCONNECT FOR UTILITY OPERATION 5 METERING, NET GENERATION OUTPUT (NGOM) 6 LOADS, AUXILIARY, GENERATING FACILITY 7 GENERATING FACILITY 8 MAIN BREAKER AHEAD OF MULTIPLE METERS 9 DISCONNECT 10 DISCONNECT, PHOTO-VOLTAIC/WIND TURBINE 11 CO-GENERATING FACILITY, PHOTO-VOLTAIC/WIND TURBINE 12 TRANSFORMER, STEP DOWN, CUSTOMER OWNED DEFINITIONS: • NET GENERATION OUTPUT METERING (NGOM): METERING OF THE NET ELECTRICAL POWER OUTPUT IN KW OR ENERGY IN KWH, RESPECTIVELY, FROM A GIVEN GENERATING FACILITY. THIS MAY ALSO BE THE MEASUREMENT OF THE DIFFERENCE BETWEEN THE TOTAL ELECTRICAL ENERGY PRODUCED BY A GENERATOR AND THE ELECTRICAL ENERGY CONSUMED BY THE AUXILIARY EQUIPMENT NECESSARY TO OPERATE THE GENERATOR. FOR A GENERATOR WITH NO HOST LOAD AND/OR SECTION 218 LOAD, METERING THAT IS LOCATED AT THE PCC. FOR A GENERATOR WITH HOST LOAD AND/OR SECTION 218 LOAD, METERING THAT IS LOCATED AT THE GENERATOR BUT AFTER THE POINT OF AUXILIARY LOAD(S) AND PRIOR TO SERVING HOST LOAD

AND/OR SECTION 218 LOAD. c INSTALLATION: A FOR METERING PURPOSES, THE GENERATOR CONDUCTORS SHALL BE CONNECTED TO THE LINE SIDE OF THE NGOM SOCKET. B BUS TAP AHEAD OF MAIN BREAKER TO SERVE ONLY THE CO-GENERATOR FACILITY. C NGOM PANELS AND DEVICES ARE NORMALLY REQUIRED TO BE GROUPED WITH THE BILLING METER AT THE PCC (ALSO REFERRED TO AS THE SERVICE AND METERING EQUIPMENT). D VISIBLE OPEN AND LOCKABLE DISCONNECTS ARE REQUIRED ON EACH SIDE OF THE NGOM EXCEPT AS NOTED IN FIGURES 1 AND 2. b E A SITE PLACARD IS REQUIRED AT THE SERVICE AND METERING EQUIPMENT. SEE PAGE SG 017.1 FOR SITE PLACARD REQUIREMENTS. IF NGOM IS NOT LOCATED IN LINE OF SITE OF THE SERVICE AND METERING EQUIPMENT, AN ADDITIONAL SITE PLACARD IS REQUIRED ON THE NGOM DENOTING THE LOCATION OF THE SERVICE AND METERING EQUIPMENT. h F AN ADDRESS PLACARD IS REQUIRED ON THE FRONT OF THE NGOM PANEL. G A PLACARD SHALL BE INSTALLED ON THE UTILITY SIDE DISCONNECT LABELED: “PV (OR WT) SYSTEM DISCONNECT FOR UTILITY OPERATION – UTILITY SIDE.” H A PLACARD SHALL BE INSTALLED ON THE GENERATOR SIDE DISCONNECT LABELED:

“PV (OR WT) SYSTEM DISCONNECT FOR UTILITY OPERATION – GENERATOR SIDE.” J CONDUCTORS TERMINATING IN THE NGOM PANEL SHALL BE LABELED “UTILITY” AND “GENERATOR”. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG807.2 2 OF 6 DISTRIBUTED GENERATION METERING

INSTALLATION (CONT’D): K FOR INSTRUMENT TRANSFORMER RATED CT NGOM PANELS, A “CURRENT FLOW” PLACARD WITH AN ARROW POINTING TOWARDS THE UTILITY SIDE DISCONNECT SHALL BE INSTALLED ON THE INSIDE SIDE WALL OF PANEL OR ON THE OUTSIDE FRONT OF NGOM PANEL. L IN NO CASE SHALL ANY OF THE HOST LOAD BE CONNECTED TO THE GENERATOR SIDE OF A NGOM PANEL. M CUSTOMER OWNED TRANSFORMERS FOR STEPPING VOLTAGE UP OR DOWN FOR INTERCONNECTION: 1. FOR SERVING VOLTAGES LESS THAN 600 VOLTS, CUSTOMER OWNED TRANSFORMERS INSTALLED TO STEP VOLTAGE UP OR DOWN TO INTERCONNECT WITH THE SDG&E SERVICE AT THE NET GENERATOR OUTPUT METER (NGOM), THE TRANSFORMER SHALL BE LOCATED ON THE GENERATOR SIDE (LINE SIDE) OF THE NGOM. IN KEEPING WITH THE GOVERNING CPUC FILED RULES, THE TRANSFORMER SHALL NOT BE INSTALLED ON THE UTILITY SIDE (LOAD SIDE) OF THE NGOM. l 2. THE TRANSFORMER SHALL ALSO NOT BE INSTALLED BETWEEN THE NGOM AND THE REQUIRED LINE SIDE VISIBLE OPEN DISCONNECT. 3. THE NGOM SHALL BE THE SAME PHASE AND VOLTAGE AS THE SERVING METER WITH WHICH IT IS INTERCONNECTED. BILL OF MATERIALS: NONE NOTES: I UTILITY SIDE

II GENERATOR SIDE METERING: III. BILLING AND POWER PURCHASE METERING: SDG&E WILL PROVIDE AND INSTALL METERING, AT A LOCATION ACCEPTABLE TO SDG&E TO COMPLY WITH APPLICABLE CPUC- APPROVED TARIFFS, POWER PURCHASE CONTRACTS, AND SDG&E’S REQUIREMENTS. THE INSTALLATION, OPERATION, AND MAINTENANCE COSTS OF THESE METERING FACILITIES SHALL BE BORNE BY THE CUSTOMER IN ACCORDANCE WITH ELECTRIC RULES 21 AND 2. REFER TO EXAMPLES OF TYPICAL BILLING AND POWER PURCHASE METERING IN TABLE 3. THE CUSTOMER WILL PROVIDE AND MAINTAIN ALL SERVICE EQUIPMENT AND SWITCHBOARDS IN ACCORDANCE WITH SDG&E’S REQUIREMENTS. c d IV. NET GENERATION OUTPUT METERING – GENERAL INFORMATION AND INSTALLATION: k a A NGOM IS ALWAYS INSTALLED IN THE ELECTRICAL CIRCUITRY USED TO INTERCONNECT A CUSTOMER'S GENERATING FACILITY WITH HOST LOAD. MORE SPECIFICALLY, IT IS LOCATED IN THE CIRCUITRY AT A LOCATION AFTER ANY CONNECTIONS USED TO SERVE THE "AUXILIARY LOADS" USED TO OPERATE THE GENERATING FACILITY, BUT BEFORE ANY CONNECTION TO THE HOST LOAD. b.

WHEN SELF-CONTAINED METERING IS USED FOR NGOM, THE METER PANEL MAY BE EITHER A SAFETY SOCKET CAN WITH FACTORY INSTALLED TEST-BYPASS FACILITIES OR, IF THE AVAILABLE FAULT CURRENT AT THE NGOM LOCATION DOES NOT EXCEED 10,000A, A RESIDENTIAL SELF-CONTAINED METER PANEL MAY BE USED. WHEN INSTRUMENT TRANSFORMER RATED METERING IS USED FOR NGOM PURPOSES, THE METERING EQUIPMENT SHALL MEET SDG&E’S REQUIREMENTS FOUND IN SG SECTION 600 FOR MEDIUM VOLTAGE METERING, OR SG SECTION 500 FOR LOW VOLTAGE METERING. TERMINATING SECTIONS UTILIZED FOR DELIVERY OF SDG&E SERVICE LATERAL CABLES SHALL MEET APPLICABLE REQUIREMENTS OF SG SECTIONS 500, 600 AND 700, WHICHEVER IS APPLICABLE. SWITCHBOARDS AND SWITCHGEAR USED FOR NGOM PURPOSES SHALL NOT EXCEED STANDARD AMPACITIES APPROVED BY SDG&E. e f g i j c. THE SERVICE SECTIONS MUST BE DESIGNED SO THAT THE METERING SECTION CAN BE ISOLATED BY A LOCKABLE OPEN OR RACKABLE CIRCUIT BREAKER AND A VISIBLY OPEN AND LOCKABLE DISCONNECT SWITCH. THE LOCKABLE OPEN DEVICES NEED TO BE LOCATED ON EACH SIDE OF THE METERING SECTION. d.

NGOM PANELS AND DEVICES SHALL BE INSTALLED IN ACCORDANCE WITH ALL OF SDG&E’S APPLICABLE SERVICE STANDARD CLEARANCES AND SPECIFICATIONS AND BE INSPECTED AND APPROVED BY THE AHJ OVER THE CUSTOMER'S FACILITIES PRIOR TO THE INSTALLATION OF THE METER(S). © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG807.3 3 OF 6 DISTRIBUTED GENERATION METERING

NOTES (CONT’D): METERING (CONT’D): V. PURPOSE AND USE OF NET GENERATION OUTPUT METERING: a. GENERATING FACILITIES MAY REQUIRE AN NGOM FOR EVALUATION, MONITORING, AND VERIFICATION PURPOSES (I.E., SYSTEM PERFORMANCE MEASUREMENTS UNDER AN INCENTIVE PROGRAM). NGOM MAY ALSO BE REQUIRED TO PARTICIPATE IN CERTAIN CPUC-APPROVED TARIFF PROGRAMS, SUCH AS NEM AGGREGATION AND VIRTUAL NEM. NGOM IS USEFUL FOR DETERMINING ANY APPLICABLE DEMAND CHARGES FOR CUSTOMERS RECEIVING STANDBY SERVICE AND TO PRECISELY CALCULATE ANY APPLICABLE NON-BYPASSABLE DEPARTING LOAD CHARGES, TO SATISFY APPLICABLE CALIFORNIA INDEPENDENT SYSTEM OPERATOR (CAISO) RELIABILITY REQUIREMENTS, AND FOR DISTRIBUTION SYSTEM PLANNING AND OPERATIONS. WHEN NGOM IS REQUIRED, GENERATING FACILITIES ARE NOT REQUIRED TO USE A NGOM WHERE LESS INTRUSIVE AND/OR MORE COST EFFECTIVE OPTIONS, FOR PRODUCER/CUSTOMER, ARE AVAILABLE FOR PROVIDING GENERATOR DATA TO SDG&E. CUSTOMERS MAY ELECT TO INSTALL A NGOM OR HAVE SDG&E INSTALL A NGOM AT THE CUSTOMER’S EXPENSE. b.

WHEN A CUSTOMER INSTALLS A GENERATING FACILITY TO SUPPLEMENT THE ELECTRIC SERVICE RECEIVED FROM SDG&E, SDG&E RECOMMENDS THE INSTALLATION OF A NGOM BECAUSE BOTH SDG&E AND THE CUSTOMER TYPICALLY NEED TO KNOW WHEN AND HOW MUCH ENERGY IS PRODUCED BY THE GENERATOR(S). IN EACH CASE, THE DATA PROVIDED BY THE METERING INSTALLATION MUST BE READILY COMPATIBLE WITH THE DATA ACQUISITION AND MANAGEMENT SYSTEMS USED TO PROCESS THE DATA PROVIDED BY THE METERING AND CONVERT IT TO USEFUL AND TIMELY INFORMATION FOR THE USER. COMMON USES FOR NGOM ARE: TARIFF ADMINISTRATION – SOME TARIFFS, SUCH AS SDG&E'S SCHEDULE E-DEPART - DEPORTING LOAD – NON-BYPASSABLE CHARGES, USE THE KWH PRODUCTION OF A GENERATOR SERVING A CUSTOMER’S LOAD. REVENUE GRADE METERING IS THE PREFERRED WAY TO ACQUIRE THIS INFORMATION. SDG&E'S SCHEDULE S – STANDBY WILL ALSO USE NGOM IN DETERMINING DEMAND CHARGES THAT MAY BE APPLICABLE. c. WHEN SDG&E'S CHARGES ARE CALCULATED BASED ON METERED QUANTITIES, THE ACCURACY AND QUALITY OF THE METERING USED IS SUBJECT TO REGULATION BY THE CPUC.

IF THE CUSTOMER CHOOSES NOT TO INSTALL AN NGOM, SDG&E WILL ESTIMATE THE DEPARTING LOAD. DISTRIBUTION SYSTEM PLANNING – A CUSTOMER'S GENERATOR MAY BE OPERATED IN SUCH A MANNER THAT IT REDUCES THE LOADING ON SDG&E'S DISTRIBUTION SYSTEM. NGOM DATA CAN BE USED BY SDG&E TO INTEGRATE CUSTOMER GENERATING FACILITY OPERATIONAL AND ENERGY PRODUCTION INFORMATION WITH DISTRIBUTION CIRCUIT LOADING INFORMATION TO BETTER PLAN FOR THE LOADING OF SDG&E'S DISTRIBUTION CIRCUITS. DISTRIBUTION SYSTEM OPERATION – SDG&E'S DISTRIBUTION CIRCUIT OPERATION AND SWITCHING DECISIONS CAN BE IMPROVED WITH TIMELY (I.E., REAL-TIME OR NEAR REAL-TIME) INFORMATION REGARDING THE AMOUNT OF GENERATION OPERATING AT ANY POINT IN TIME ON A PARTICULAR SECTION OF A DISTRIBUTION CIRCUIT. NGOM DATA CAN BE INTEGRATED WITH A COMMUNICATION CIRCUIT AND DATA MANAGEMENT PROGRAM TO PROVIDE A VERY CURRENT SNAPSHOT OF THE NATURE OF A CIRCUIT’S LOAD, THEREBY ALLOWING FOR MORE FINELY TUNED OPERATIONS OF SDG&E'S DISTRIBUTION SYSTEM. CUSTOMER GENERATION OPERATION AND MONITORING – GENERATION OPERATION, ENERGY PRODUCTION, AND SALES

NEED TO BE MEASURED BY THE CUSTOMER AND, IN MANY CASES, THIRD PARTIES WHO ARE EITHER SELLING THE ENERGY PRODUCED BY THE GENERATOR(S) TO THE CUSTOMER OR WHO HAVE PROVIDED FINANCIAL INCENTIVES TIED TO CERTAIN PERFORMANCE CRITERIA BASED ON THE ENERGY PRODUCED. NGOM CAN BE USED WITH VARIOUS DATA MANAGEMENT PROGRAMS TO PROVIDE BOTH REAL-TIME AND CUMULATIVE DATA THAT CAN BE USED FOR THESE PURPOSES. MULTIPLE TARIFF METERING – WHERE A GENERATING FACILITY INCLUDES MULTIPLE GENERATORS ELIGIBLE FOR SERVICE UNDER MORE THAN ONE NET ENERGY METERING (NEM) RATE SCHEDULE (E.G. NEM OR NEM-FC), OR WHERE A GENERATING FACILITY CONSISTS OF ONE OR MORE NEM-ELIGIBLE GENERATORS IN COMBINATION WITH ONE OR MORE NON-NEM ELIGIBLE GENERATORS WITHOUT NON-EXPORT RELAYS, METERING WILL BE REQUIRED AT THE PCC AND AT EACH OF THE NEM-ELIGIBLE GENERATOR GROUPS TO ENSURE PROPER TARIFF ADMINISTRATION. WHERE A GENERATING FACILITY CONSISTS OF ONE OR MORE NEM-ELIGIBLE GENERATOR GROUPS IN COMBINATION WITH ONE OR MORE NON-NEM GENERATORS, METERING OF THE NON-NEM GENERATORS IS NOT REQUIRED.

© 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG807.4 4 OF 6 DISTRIBUTED GENERATION METERING

NOTES (CONT’D): VI. EXCEPTIONS TO SDG&E'S NGOM REQUIREMENTS: a. NGOM IS NOT NORMALLY REQUIRED FOR SMALL (<10 KW) GENERATING FACILITIES THAT ARE ELIGIBLE FOR SERVICE UNDER SDG&E'S NET ENERGY METERING (NEM) TARIFF. SHOULD SDG&E DETERMINE IT NECESSARY THAT NGOM IS REQUIRED AT A NEM-ELIGIBLE LOCATION, SUCH METERING WILL BE INSTALLED AT SDG&E'S EXPENSE. b. NGOM IS NOT REQUIRED FOR GENERATORS THAT ARE INSTALLED ONLY FOR EMERGENCY OR BACK-UP SERVICE AND ARE NOT AUTHORIZED TO BE OPERATED IN PARALLEL OUTSIDE OF A MOMENTARY TRANSFER. SDG&E WILL SCREEN GENERATING FACILITY INTERCONNECTION APPLICATIONS AND ADVISE CUSTOMERS ON THE USE OF NGOM. c. AN NGOM IS NOT USUALLY REQUIRED FOR GENERATING FACILITIES THAT ONLY EXPORT POWER TO SDG&E’S ELECTRIC DISTRIBUTION SYSTEM. SDG&E WILL INSTALL A METER THAT IS CAPABLE OF RECORDING BOTH THE GENERATING FACILITY’S ENERGY CONSUMPTION AND POWER EXPORTED TO THE ELECTRIC DISTRIBUTION SYSTEM. VII. TABLE 2 LISTS THE TYPE OF METERS AND RELATED MONITORING EQUIPMENT SDG&E MAY REQUIRE TO MEASURE THE NET

ENERGY OUTPUT OF A CUSTOMER'S GENERATING FACILITY AND, IN SOME CASES, TO MONITOR THE STATUS OF THE CUSTOMER'S EQUIPMENT USED TO INTERCONNECT THE GENERATING FACILITY. UNLESS OTHERWISE AGREED TO BETWEEN SDG&E AND THE CUSTOMER, THE CUSTOMER WILL SUPPLY THE METERING PANEL AND RELATED HARDWARE AND SDG&E WILL PROVIDE THE METERS OR MONITORING EQUIPMENT AT THE CUSTOMER'S EXPENSE. a. SDG&E'S CHARGES FOR SUCH DEVICES ARE REGULATED BY THE CPUC. TABLE 2 TYPICAL METERING DEVICES REQUIRED AND INSTALLED BY SDG&E TOTAL RATED KW OF TYPICAL METERING DEVICES INSTALLED BY SDG&E GENERATING FACILITY NON-TIME OF USE (TOU) REVENUE GRADE METERS MEASURING NET GENERATION OUTPUT. INTERVAL DATA RECORDING (IDR) < 200 METERS MAY BE REQUIRED TO DETERMINE COMPLIANCE UNDER VARIOUS INCENTIVE PROGRAMS. 200 < X < 1000 REVENUE GRADE LDR METERS MEASURING NET GENERATION OUTPUT AND CUSTOMER LOAD. NO TELEMETRY REQUIRED. REVENUE GRADE REAL-TIME ENERGY METERING (RTEM) METERS CAPABLE OF NEAR REAL-TIME TELEMETRY MEASURING NET 1,000 < X < 10,000

GENERATION OUTPUT AND CUSTOMER LOAD, WATTS, VARS, WATT-HOUR, VAR HOUR, AMPS AND VOLTS. REVENUE GRADE IDR METERS MEASURING NET GENERATION OUTPUT AND CUSTOMER LOAD, PLUS REAL-TIME (SCADA) TELEMETRY REQUIRED TO MEASURE/MONITOR TOTAL WATTS, VARS, CIRCUIT BREAKER (CB) STATUS AND VOLTAGE OF GENERATING FACILITY. WIND PROJECTS > 1,000 REAL-TIME TELEMETERING REQUIREMENTS FOR WIND PROJECTS LESS THAN 10 MW WILL BE EVALUATED ON A CASE-BY-CASE BASIS. REVENUE GRADE IDR METERS MEASURING NET GENERATION OUTPUT AND CUSTOMER LOAD, PLUS REAL-TIME (SCADA) TELEMETRY REQUIRED TO MEASURE AT LEAST TWO OF THE FOLLOWING THREE PARAMETERS: (1) TOTAL GROSS GENERATION, (2) CUSTOMER >10,000 LOAD, OR (3) NET FLOW TO/FROM UTILITY INTERFACE. SCADA TELEMETRY ALSO REQUIRED TO MONITOR WATTS, VARS, AMPS, VOLTS (GENERATOR BUS) AND INTERFACE CB STATUS. ACTUAL POINTS WILL VARY DEPENDING ON CUSTOMER CONFIGURATION. GENERATING FACILITIES REVENUE GRADE IDR METERS MEASURING NET GENERATION OUTPUT AND CUSTOMER LOAD, PLUS REAL-TIME (SCADA) TELEMETRY

WHERE ANY SINGLE WILL BE REQUIRED TO MEASURE/MONITOR EACH INDIVIDUAL UNIT’S WATTS, VARS, AMPS, VOLTS (GENERATOR BUS) AND UNIT CB GENERATOR > 10,000 STATUS. VIII. WHERE GENERATION IS CONNECTED DIRECTLY TO SDG&E THROUGH A CUSTOMER OR SDG&E SWITCHYARD INTERFACE AT 69 KV AND ABOVE, SDG&E ALSO REQUIRES REAL-TIME (SCADA) TELEMETRY FOR SWITCHYARD CB STATUS, BUS VOLTS, AND LINE WATTS AND VARS. IX. VOLTAGE STANDARDS: IF A CUSTOMER INSTALLS A GENERATOR UTILIZING A VOLTAGE NOT LISTED IN SDG&E'S SERVICE STANDARDS & GUIDE, THEN THE CUSTOMER WILL BE REQUIRED TO INSTALL, OWN AND MAINTAIN A TRANSFORMER TO MATCH THE UTILITY’S SERVICE VOLTAGE. NGOM PANELS OR SWITCHGEAR MUST BE LOCATED ON THE UTILITY SIDE OF THE VOLTAGE-MATCHING TRANSFORMER. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E

A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG807.5 5 OF 6 DISTRIBUTED GENERATION METERING

NOTES (CONT’D): XI. INSPECTION: ALL CONDITIONS SPECIFIED IN THESE REQUIREMENTS MUST BE MET AND VERIFIED BY AN AUTHORIZED SDG&E REPRESENTATIVE. IN ADDITION, APPROVAL FROM THE AHJ, FOR PORTIONS OF THE ELECTRIC SYSTEM UNDER THEIR JURISDICTION, IS REQUIRED BEFORE INTERCONNECTION IS ALLOWED. XII. DISCONNECTION OF GENERATOR: WHENEVER IT IS DETERMINED BY SDG&E THAT THE CUSTOMER'S GENERATOR IS ADVERSELY AFFECTING ITS ELECTRIC DISTRIBUTION SYSTEM, SDG&E RESERVES THE RIGHT TO DISCONNECT THE GENERATOR FROM ITS SYSTEM UNTIL THE CUSTOMER HAS CORRECTED THE PROBLEM. UNDER EMERGENCY CONDITIONS, SDG&E RESERVES THE RIGHT TO DISCONNECT THE CUSTOMER'S GENERATOR FROM ITS ELECTRIC DISTRIBUTION SYSTEM WITHOUT NOTIFICATION. XIII. ACCESSIBILITY: ALL DEVICES USED TO DISCONNECT THE GENERATOR SHALL BE ACCESSIBLE UNDER ALL CONDITIONS AND AT ALL TIMES, 24 HOURS A DAY, TO SDG&E’S AUTHORIZED EMPLOYEES OR AGENTS. XIV. TRANSFORMER REQUIREMENTS: WHERE SERVICE IS PROVIDED AT OR BELOW 480V, THE CUSTOMER IS TO BE SERVED BY A DEDICATED TRANSFORMER WITH THE FOLLOWING EXCEPTIONS:

• EXCEPTION 1: NOT REQUIRED FOR GENERATION UNDER 10 KW • EXCEPTION 2: NOT REQUIRED FOR INDUCTION GENERATION UNDER 100 KW XV. TELEMETERING: FOR GENERATION FACILITIES THAT ARE RATED ONE MEGAWATT AND ABOVE, SDG&E REQUIRES TELEMETERING EQUIPMENT AT THE SOURCE (AT THE CUSTOMER'S EXPENSE), TO PROVIDE CONTINUOUS GENERATION OUTPUT DATA TO SDG&E'S OPERATIONS PERSONNEL. THE CUSTOMER SHALL PROVIDE A DEDICATED COMMUNICATION SERVICE AND 120-VOLT UNINTERRUPTABLE POWER SOURCE AT EACH TELEMETERING INSTALLATION. REFERENCE: a FOR BUS TAPS, SEE SG517. b FOR DISCONNECT REQUIREMENTS, SEE SG511. c SEE RULE 21. d SEE RULE 2. e FOR MEDIUM VOLTAGE METERING, SEE SG SECTION 600. f FOR LOW VOLTAGE METERING, SEE SG SECTION 500. g SEE SG SECTION 700. h FOR ADDRESS AND PLACARD REQUIREMENTS, SEE SG017. i FOR A SELF-CONTAINED METER EXAMPLE, SEE SG808. j FOR EXAMPLES OF CT METERING USING A COMBINATION CT AND METER SOCKET CAN, COMMONLY REFERRED TO AS AN EXO CAN, SEE SG809. k FOR THE WORKING SPACE AND CLEARANCE REQUIREMENTS FROM SDG&E-OWNED ELECTRIC METER AND GAS METER SET ASSEMBLY STANDARD, SEE SG810.

l SEE RULE 16 B.1. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG807.6 6 OF 6 DISTRIBUTED GENERATION METERING

SCOPE: THIS STANDARD DISCUSSES THE SAFETY SOCKET METER CAN IN DISTRIBUTED GENERATION METERING. A M D b G 1 1/2” MIN. 1 1 1/2” MIN. 3” C 2’-6” c 1 f 4 B 4 3 TO 3 1/2” 2 l 8” 11” GENERATOR SIDE CONDUCTORS (LINE) L 2 1/2” UTILITY SIDE 2 1/2” I K MAX. 6” CONDUCTORS (LOAD) MAX. MIN. 1’-2” MIN. 3” MAX. FIGURE 1 NET GENERATION OUTPUT METERING (NGOM) SAFETY SOCKET CAN E F G H J WITH FACTORY-INSTALLED TEST-BYPASS FACILITIES, 0–600V, 100A (STANDARD DUTY), 200A (HEAVY DUTY) SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET DISTRIBUTED GENERATION SG808.1 1 OF 3 METERING SAFETY SOCKET METER CAN

TABLE 1 FIGURE ITEMS ITEM DESCRIPTION DETAILS 1 BARRIERS, INSULATING, RIGID 2 ALTERNATE NEUTRAL LUG POSITION 3 LUG, DOUBLE NEUTRAL, VERTICAL LAY-IN NO. 250 MCM CU-AL WIRE CAPACITY 4 STUDS, UPPER TEST CONNECTOR INSTALLATION: A HUBS CAPPED OFF IF USED FOR UNDERGROUND FEED. B MOUNTED ON EITHER SIDEWALL C TEST-BYPASS BLOCKS SHALL BE BUSSED OR WIRED TO SOCKET JAWS OR TERMINALS. d D ALL COVERS SHALL BE INDEPENDENTLY REMOVABLE. UPPER COVER SHALL BE NON-REMOVABLE WHEN METER IS IN PLACE. METER SOCKET SHALL BE MOUNTED ON SUPPORT AND ATTACHED TO PANEL. LOWER COVER SHALL BE SEALABLE AND PERMANENTLY LABELED: “DO NOT BREAK SEALS. NO FUSES INSIDE.” e E FOR 3-PHASE, 4-WIRE, CONNECT SEVENTH JAW TO BODY OF NEUTRAL LUG WITH A #12 COPPER WIRE, WHITE IN COLOR. F FOR 3-PHASE, 4-WIRE DELTA, IDENTIFY RIGHT HAND TEST-BYPASS BLOCK (2 POLES) AS POWER LEG, ORANGE IN COLOR (C-PHASE). G FOR 3-PHASE, 3-WIRE, INSTALL BUS TO CONNECT LINE AND LOAD POLES TOGETHER AT TOP OF CENTER TEST-BYPASS BLOCK AND CONNECT FIFTH JAW TO THIS BUS USING A #12 WIRE, RED IN COLOR.

H FOR SINGLE-PHASE, 3-WIRE, PROVIDE TWO TEST-BYPASS BLOCKS MOUNTED IN THE OUTER POSITIONS AND A 4-JAW SOCKET. J FOR SINGLE-PHASE, 3-WIRE, 120/208 VOLTS, PROVIDE TWO TEST-BYPASS BLOCKS MOUNTED IN THE OUTER POSITIONS AND A 5- JAW SOCKET. CONNECT FIFTH JAW OF METER SOCKET TO BODY OF NEUTRAL LUG WITH A NO. 12 COPPER WIRE, WHITE IN COLOR. K PERMANENT LABELS INDICATING LINE AND LOAD CONNECTIONS FOR THE TEST BLOCKS ON INSIDE BACK OF ENCLOSURE IN 3/4-INCH (MINIMUM) HIGH BLOCK LETTERS. b L LABEL CONDUCTORS IN METER PANEL LINE SIDE AS “GENERATOR” AND LOAD SIDE AS “UTILITY”. M AN ADDRESS PLACARD IS REQUIRED ON THE FRONT OF THE NGOM PANEL. A SITE PLACARD IS REQUIRED AT THE SERVICE AND METERING EQUIPMENT. IF NGOM IS NOT LOCATED IN LINE OF SITE OF THE SERVICE AND METERING EQUIPMENT, AN ADDITIONAL SITE PLACARD IS REQUIRED ON THE NGOM SHOWING THE LOCATION OF THE SERVICE AND METERING EQUIPMENT. a BILL OF MATERIALS: NONE NOTES: I LOWER COVER REMOVED REFERENCE: a FOR ADDRESS AND SITE PLACARD REQUIREMENTS, SEE SG017. b FOR 100A AND 200A SAFETY SOCKET CAN SPECIFICATIONS, SEE SG514. c SEE SG513.

© 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET DISTRIBUTED GENERATION SG808.2 2 OF 3 METERING SAFETY SOCKET METER CAN

REFERENCE (CONT’D): d FOR METER SOCKET CLIP REQUIREMENTS, SEE SG516. e FOR SEALING REQUIREMENTS, SEE SG503. f FOR TEST-BYPASS BLOCK DETAIL, SEE SG513, FIGURE 1. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET DISTRIBUTED GENERATION SG808.3 3 OF 3 METERING SAFETY SOCKET METER CAN

SCOPE: THIS STANDARD DISCUSSES THE TRANSFORMER RATED METER PANEL IN DISTRIBUTED GENERATION METERING. 1 A G I E 10” 2 2” I.D. 1/8” 4 c 3” 3” J B 3 3’-6” 11” MIN. MIN. F 5 III IV b H 1’-6” 4 c 3” 3 1/2” 3” MAX. D 5” 5” E 3 1/2” 1 A G II MAX. Z FIGURE 1 NET GENERATION OUTPUT METERING (NGOM) ONLY COMBINATION CURRENT TRANSFORMER AND METER SOCKET CAN, 0–600V, 800A MAXIMUM SEE TABLES 1 AND 2 TABLE 1 C MINIMUM DIMENSIONS Z CONFIGURATION (MIN.) 3Ø 3-WIRE CURRENT FLOW 4-WIRE 36” Y 1Ø 24” FIGURE 2 “CURRENT FLOW” PLACARD © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET DISTRIBUTED GENERATION SG809.1 1 OF 2 METERING

TRANSFORMER RATED METER PANEL

TABLE 2 FIGURE ITEMS ITEM DESCRIPTION DETAILS 1 CONDUCTORS 2 STUDS, SEALABLE (4 PLACES) 3 HANDLES 4 PERCH, TEST, REMOVABLE 5 BASE, MOUNTING, TRANSFORMER INSTALLATION: A GENERATOR AND UTILITY SIDE CONDUCTORS MUST ENTER ABOVE THE TEST PERCH AND BELOW THE CT MOUNTING BASE. a B COVER SHALL HAVE TWO LIFTING HANDLES, BE A MAXIMUM OF 9 SQUARE FEET, AND HAVE A CAUTION SIGN THAT READS, “DO NOT BREAK SEALS, NO FUSES INSIDE.” C INSTALL “CURRENT FLOW” PLACARD ON INSIDE SIDE PANEL OR OUTSIDE FRONT OF METER PANEL. CURRENT FLOW ARROW SHOULD BE POINTED TOWARD UTILITY SIDE CONDUCTOR. D PROVISION SHALL BE MADE IN THE CT COMPARTMENT FOR A MECHANICAL LUG BONDABLE TERMINATION OF THE UTILITY’S NEUTRAL. THIS TERMINATION MAY BE INSTALLED ON THE CT MOUNTING BASE. THE GROUNDING ELECTRODE CONDUCTOR MAY NOT ENTER OR TERMINATE INSIDE THE PANEL. E BOND EQUIPMENT GROUNDING CONDUCTOR TO THE BONDING LUG ON THE BUSHING. F NO CONDUCTORS PERMITTED IN SHADED AREA. G LABEL CONDUCTORS IN METER PANEL: LINE SIDE AS “GENERATOR” AND LOAD SIDE AS “UTILITY”. H AN ADDRESS PLACARD IS REQUIRED ON THE FRONT OF THE NGOM PANEL.

A SITE PLACARD IS REQUIRED AT THE SERVICE AND METERING EQUIPMENT. IF NGOM IS NOT LOCATED IN LINE OF SITE OF THE SERVICE AND METERING EQUIPMENT, AN ADDITIONAL SITE PLACARD IS REQUIRED ON THE NGOM SHOWING THE LOCATION OF THE SERVICE AND METERING EQUIPMENT. d J USE TOP PERCH ONLY. BILL OF MATERIALS: NONE NOTES: I UTILITY SIDE II GENERATOR SIDE III FURNISHED BY CUSTOMER IV INSTALLED BY CUSTOMER REFERENCE: a FOR OVERHEAD-FED AND UNDERGROUND-FED CANS, SEE SG515. b FOR TRANSFORMER MOUNTING BASE DETAILS, SEE SG515. c SEE SG515.9, NOTE III. d FOR ADDRESS AND PLACARD REQUIREMENTS, SEE SG017. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET DISTRIBUTED GENERATION SG809.2 2 OF 2 METERING TRANSFORMER RATED METER PANEL

SCOPE: THIS STANDARD DISCUSSES METERING CLEARANCE REQUIREMENTS IN DISTRIBUTED GENERATION METERING. 2 B 1 A CLEAR ZONE 1’-6” 1’-6” MIN. MIN. 10’-0” 3’-0” SOURCE OF IGNITION 1’-6” CLEARANCE GAS SERVICE FINAL B GRADE 3 4 FIGURE 1 WORKING CLEARANCE REQUIREMENTS FROM SDG&E-OWNED ELECTRIC METER AND GAS METER SET ASSEMBLY FRONT VIEW SEE TABLE 1 A 1 3’-0” 1’-6” 1’-6” MIN. MIN. 2 1’-7” 1’-0” HOUSE GAS SERVICE LINE GAS RISER AND 3’-0” REGULATOR B FIGURE 1 WORKING CLEARANCE REQUIREMENTS FROM SDG&E-OWNED ELECTRIC METER AND GAS METER SET ASSEMBLY C I PLAN VIEW SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG810.1

1 OF 2 DISTRIBUTED GENERATION METERING CLEARANCE REQUIREMENTS

TABLE 1 FIGURE ITEMS ITEM DESCRIPTION 1 CLEAR ZONE 2 PANEL, METER, ELECTRIC 3 TRENCH 4 RISER, SDG&E INSTALLATION: A WALL AREA BEHIND METER SET ASSEMBLY INCLUDING HEADERS, MUST BE FREE OF ANY OBSTRUCTIONS SUCH AS WATER PIPES, HOSE BIBS, SEWER CLEAN OUTS, DRAIN SPOUTS, ELECTRIC CONDUITS, ETC. NO BUILDING VENT, WINDOW OR OTHER OPENINGS, COVERED OR UNCOVERED, ARE ALLOWED WITHIN 18 INCHES FROM THE UTILITY GAS RISER VENT, AND FROM FINAL GRADE TO A HEIGHT OF 10 FEET. FIXED WINDOWS ARE ACCEPTABLE. EQUIPMENT, SUCH AS BUT NOT LIMITED TO, CABLE TV, TELEPHONE, INVERTERS, DISCONNECTING DEVICES, TRANSFER SWITCHES, ETC., ARE ALSO NOT ALLOWED WITHIN 36 INCHES RADIALLY OF THE UTILITY GAS RISER VENT, AND FROM FINAL GRADE TO A HEIGHT OF 10 FEET ABOVE THE GAS METER SET ASSEMBLY AS INDICATED BY THE CLEAR ZONE. B MAINTAIN 36 INCHES CLEAR AND LEVEL WORKING SPACE IN FRONT OF GAS AND ELECTRIC METERS. C ELECTRIC BONDING TO OR USE OF THE UTILITY’S GAS SERVICE PIPING, GAS RISERS OR METER FACILITIES FOR ELECTRIC GROUNDING IS NOT PERMITTED. BILL OF MATERIALS: NONE NOTES: I SIZE AND DIMENSIONS OF PANELS MAY VARY.

ILLUSTRATION IS NOT TO SCALE. REFERENCE: a. FOR MORE INFORMATION ABOUT GENERAL CLEARANCE REQUIREMENTS AROUND GAS METER SET ASSEMBLIES, SEE SG1007. © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET SG810.2 2 OF 2 DISTRIBUTED GENERATION METERING CLEARANCE REQUIREMENTS

SCOPE: THIS STANDARD DISCUSSES TYPICAL BILLING AND POWER PURCHASE METERS IN DISTRIBUTED GENERATION METERING. LINE 1 3 1 3 1 3 IMPORT EXPORT 2 4 2 4 2 4 LOAD EXAMPLE 1 METERING ADAPTER (TYPICAL) A IMPORT/BILLING IMPORT/BILLING 1 2 UTILITY SOURCE C EXPORT/PURCHASE B 3 CUSTOMER EXAMPLE 2 EXAMPLE 3 SAFETY SOCKET CAN (TYPICAL) C.T. PANEL (TYPICAL) FIGURE 1 EXAMPLES OF TYPICAL BILLING AND POWER PURCHASE METERS I SEE TABLE 1 © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET DISTRIBUTED GENERATION SG811.1 1 OF 2 METERING TYPICAL BILLING AND POWER PURCHASE METERS

TABLE 1 FIGURE ITEMS ITEM DESCRIPTION DETAILS 1 PANEL, METER 2 SWITCH, TEST 3 MAIN SWITCH OR BREAKER COMPARTMENT INSTALLATION: A THE HORIZONTAL SERIES METER ADAPTER MUST HAVE THE BILLING METER IN THE LEFT-HAND SOCKET AND THE POWER PURCHASE METER IN THE RIGHT-HAND SOCKET. THE VERTICAL SERIES METER ADAPTER MUST HAVE THE BILLING METER IN THE TOP SOCKET AND THE POWER PURCHASE METER IN THE BOTTOM SOCKET. B WIRING BETWEEN SAFETY SOCKET CANS BY CUSTOMER. C NEW METER SOCKET AND RING INSTALLED BY CUSTOMER. BILL OF MATERIALS: NONE NOTES: I DETENTED METERS WILL BE REQUIRED ON ALL INSTALLATIONS. REFERENCE: NONE © 1998 - 2025 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE DR BY DSN APV DATE REV CHANGE DR BY DSN APV DATE C EDITORIAL CHANGES ARC JIK IPJ KRG 01/09/2023 F B EDITORIAL CHANGES - IPJ IPJ CZH 11/01/2019 E A EDITORIAL CHANGES - LSM IPJ TPM 11/01/2017 D MOVED FROM SG806 EDM IWA JTM KRG 02/03/2025 X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E ELECTRIC SERVICE STANDARDS & GUIDES SHEET DISTRIBUTED GENERATION SG811.2 2 OF 2 METERING TYPICAL BILLING AND POWER PURCHASE METERS

PAGE # SUBJECT SG 1001 Table of Contents SG 1002.1 – 1002.2 Alphabetical Subject Index SG 1003.1 – 1003.5 General Information SG 1004.1 – 1004.2 Gas Trench Only for San Diego County SG 1005 Gas Meter Capacity & Selection SG 1006.1 – 1006.5 Gas Service Policies & Meter Locations SG 1007.1 – 1007.5 Utility Placement in Joint Trench & Gas Meter Set Assembly Installation SG 1008.1 – 1008.3 Meter Cabinet for Single Residential Gas Meter SG 1009.1 – 1009.3 Gas Service Riser & Houseline Spacing, Clearances & Minimum Working Space SG 1010.1 – 1010.8 Gas Meters Grouped on Meter Headers SG 1011 Gas Service & Meter Behind Wing Walls SG 1012.1 – 1012.4 Building Recess for Gas Service & Meters SG 1013 Mobile Home Meter Pad SG 1014.1 – 1014.3 Barricades for Gas Meter Sets SG 1015.1 – 1015.7 Gas Facilities near Underground Padmounted Equipment or Substructures © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A New Page LSM LSM TPM 11/01/17 D B E

C F Indicates Latest Revision Completely Revised X New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1001 1 OF 1 GAS TABLE OF CONTENTS

SUBJECT PAGE # Access to Customer’s Premises............................................................................. SG 1003.1, SG 1003.3 Alcove.................................................................................................................................. SG 1003.1 Assistance & Information for Equipment Selection & Energy Savings........................................ SG 1003.3 Barricades for Gas Meter Sets.................................................................................. SG 1014.1 – 1014.3 Billing Account Establishment................................................................................................. SG 1003.3 Customer Responsibility for Appliances........................................................................................ 1003.3 Definition of Terms................................................................................ SG 1003.1 – 1003.2, SG 1009.2 Electric Bonding & Grounding of Gas Pipe............................................................................... SG 1003.5

Establishing the Gas Meter Location & Location of Customer’s Houseline.................................. SG 1003.2 Gas Facilities near Underground Padmounted Equipment or Substructures................. SG 1015.1 – 1015.7 Gas Meter Capacity & Selection................................................................................................. SG 1005 Gas Meters Grouped on Meter Headers.................................................................... SG 1010.1 – 1010.8 Adequate Support for Wall Mounted Meter Headers.......................................................... SG 1010.8 Customer Built Header Support.......................................................................... SG 1010.6 – 1010.7 Left Hand Headers............................................................................................ SG 1010.2 – 1010.3 Right Hand Headers.............................................................................. SG 1010.1, 1010.4 – 1010.5 Gas Service & Metering.........................................................................................................

SG 1003.2 Behind Wing Walls............................................................................................................. SG 1011 Building Recess for Gas Service & Meters........................................................... SG 1012.1 – 1012.4 Meter Cabinet for Single Residential Gas Meter................................................... SG 1008.1 – 1008.3 Gas Service Policies & Meter Locations...................................................................... SG1006.1 – 1006.5 Existing Gas Service – Customer Requests for Additional Services........................ SG 1006.3 – 1006.4 Gas Meter Assembly Installation........................................................................ SG 1007.1 – 1007.5 Gas Service & Metering................................................................................................... SG 1003.2 Meter Locations................................................................................................ SG 1006.1 – 1006.2 © 1998-2017 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM LSM TPM 11/01/17 D B E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1002.1 1 OF 2 GAS ALPHABETICAL SUBJECT INDEX

SUBJECT PAGE # Meter & Service Location................................................................................................. SG 1006.1 Number of Services Allowed to a Building – New Projects.................................... SG 1006.2 – 1006.3 Service Locations............................................................................................................ SG 1006.5 Gas Service Riser & Houseline Spacing, Clearances & Minimum Working Space.......... SG 1009.1 – 1009.3 Clear & Level Working Space............................................................................. SG 1009.2 – 1009.3 Clearances from Building Walls & Corners......................................................................... SG 1009.1 Installation Space & Dimensions........................................................................ SG 1009.2 – 1009.3 Gas Trench Only for San Diego County..................................................................... SG 1004.1 – 1004.2

High-Pressure Metering........................................................................................ SG 1003.1, SG 1009.2 Houseline Modifications......................................................................................................... SG 1003.4 Large Gas Field Service Vehicle Access................................................................................... SG 1003.1 Markout Service.................................................................................................................... SG 1003.5 Meter Set Assembly (MSA)..................................................................................................... SG 1003.1 Mobile Home Meter Pad........................................................................................................... SG 1013 Orange County District Meter Clearances................................................................................ SG 1007.5 Ownership & Maintenance of Utility’s Facilities........................................................................ SG 1003.4

Recess (Building)................................................................................. SG 1003.1, SG 1012.1 – 12012.4 Resale of Natural Gas............................................................................................................ SG 1003.5 Signage Requirements for Gas Service Locations on Multi-Tenant Buildings................ SG 1003.2 – 1003.3 Standard Cubic Feet per Hour (SCFH).................................................................................... SG 1003.1 Utility Placement in Joint Trench & Gas Meter Assembly Installation........................... SG 1007.1 – 1007.5 Vent..................................................................................................................................... SG 1003.1 Vented Appliance.................................................................................................................. SG 1003.1 Vented Decorative Appliance................................................................................................. SG 1003.2

Venting System..................................................................................................................... SG 1003.2 © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM LSM TPM 11/01/17 D B E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1002.2 2 OF 2 GAS ALPHABETICAL SUBJECT INDEX

SCOPE The Gas Section presents general and detailed information concerning the location, accessibility, and ventilation of gas meters, risers, service regulators and gas services for new installations and relocations. PURPOSE The Service Standards & Guide Gas Section is for use by plumbers, architects, builders and others interested in designing and building a proper gas service and meter(s) installation. DEFINITIONS OF TERMS Accessible: Capable of being reached quickly and conveniently 24 hours a day for construction, operation, maintenance, inspection, testing or reading, without requiring those seeking access to climb over or remove obstacles; or to obtain special permission or security clearances. Alcove: An enclosed, normally recessed, area where gas meters are installed. Enclosed alcoves are not permitted for any new project submitted to the Utility. Existing alcoves are grandfathered. If modifications are made to the customer’s gas system, such as load additions requiring a larger gas meter, the gas meter will not be allowed to stay in the alcove.

Large Gas Field Service Vehicle Access: A minimum 16’ wide “all weather” driven way of sufficient strength to support truck weight class H20 (20 tons), with a clear height of 13’-6” and a 40’ minimum turning radius measured from inside curb. Meter Set Assembly (MSA): Service riser, regulator, meter, and associated piping. Recess: An indentation of a building wall, foundation, and floor. A recess is open on the front so that the meter set assembly is visible. No doors, lattice work, or covers of any type are permitted. The building foundation must not cross any portion of the recess. See pages SG 1012.1 – 1012.4 for minimum requirements for a recess. Standard Cubic feet per Hour (SCFH): A unit of measure to represent the rate of flow of gas, adjusted to standard temperature and pressure conditions. High-Pressure Metering: Gas pressure higher than the standard 7” water column. Vent: A listed factory-made vent pipe and vent fittings for conveying flue gases to the outside atmosphere. Vented Appliance: An appliance that requires a venting system. See definition of Venting System.

Vented Decorative Appliance: A vented appliance whose only function is providing an esthetic effect of flames. In very rare cases when the heat value of the vented decorative appliance (fireplace or gas log appliance) is being used in the space heating calculations for Title 24 energy calculations, the appliance is no longer considered “decorative only” and will require individual gas metering by the Utility. When this occurs, all individual vented and un-vented gas appliances serving a dwelling unit must be individually metered by the Utility. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B No Changes – Reaffirmed JC TPM MDJ 07/23/15 E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1003.1 1 OF 5 GENERAL INFORMATION

Venting System: Consists of the vent or chimney and its connectors, assembled to form a continuous open passageway from an appliance to the outside atmosphere for the purpose of removing products of combustion. This definition shall also include a venting assembly which is an integral part of an appliance. GAS SERVICE & METERING Each new single or multi-family residential dwelling unit, where the tenant can use gas directly in gas appliances which require venting, shall be individually metered by the Utility. Exception: If the only vented appliances serving the dwelling units are decorative appliances the unit is not required to be separately metered and may receive its gas supply through a master meter effective January 1, 2005. See vent-related definitions above. This exception does not apply to log lighters. Log lighters are a vented appliance, and are not considered to be decorative. The Utility supplies natural gas at a heating value that may change from time to time due to the supply from various gas fields as gathered and transmitted to the Utility.

ESTABLISHING THE GAS METER LOCATION & LOCATION OF CUSTOMER’S HOUSELINE When building plans have been completed and gas loads are known, the Utility’s Planner should be contacted. Refer to page SG 2 for contact information. After reviewing building plans and gas load information, the Planner will provide a written “Gas Service and Meter Location” form. This will establish where the gas meter(s) and houseline(s) are to be located. Buildings requiring multiple meters shall have all meters located at one location. See pages SG 1006.2 – 1006.4 for information on additional services. All houselines shall be clearly and permanently marked by the contractor or customer to identify the unit to be served. When any gas design load is over 1,000 SCFH, or “high pressure” gas service is required, the Utility will initiate a gas load study. This study will be based on information supplied by the customer or their representative. The Utility will confirm the results of the load study to the customer or their representative via certified mail.

The Utility’s Planner will advise if large gas field service vehicle access will be required. See definition on page SG 1003.1. Extensions of gas mains and services will be made in accordance with the Utility’s filed rules. SIGNAGE REQUIREMENTS FOR GAS SERVICE LOCATIONS ON MULTI-TENANT BUILDINGS Identification plaques are required for each gas service/header serving a multi-tenant building. They are to have a directory diagram showing all the gas service points and meter locations for the building, and must identify the particular service point being identified with the serving pressure to the header, and a listing of the units/suites served by it. See page SG 017.1 for plaque specifications, with the exception that all letter sizes may be reduced to ⅛”. In addition to the information specified above, plaques for 2-PSIG services to multi-family buildings are to show the location and access route to the 7” water column regulators for each unit served by the header being identified. © 1998-2017 San Diego Gas & Electric Company. All rights reserved.

Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B No Changes – Reaffirmed JC TPM MDJ 07/23/15 E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1003.2 2 OF 5 GENERAL INFORMATION

The plaque is to be permanently affixed to the wall of the building served in immediate proximity to the header, or it is to be installed as a permanent self-supporting sign next to the header in a manner that does not impede required clearances and working space requirements for the header/meter set assembly. BILLING ACCOUNT ESTABLISHMENT A request to the Utility for electric and/or gas service is different than an inquiry into the availability of or charges for such service. Contact the Utility’s Customer Contact Center at (800) 411-7343, to make an application for a billing account as soon as the street address has been assigned by the city/county. CUSTOMER RESPONSIBILITY FOR APPLIANCES The customer will maintain all gas piping and equipment in good safe condition beyond the point of service connection to the houseline. The Utility will not be responsible for any loss or damage caused by the customer’s negligence, want of proper care, or wrongful act in maintaining the equipment.

The Utility has the right to refuse or to cease to deliver gas to any customer if any part of the piping, appliances or apparatus shall at any time be unsafe or if use is prohibited under any law, municipal ordinance or regulation. The Utility does not assume the duty of inspecting the customer’s piping, appliances or equipment and therefore, assumes no liability. Gas service will not be supplied to apparatus or appliances where their operation will be detrimental to our gas system or other customers. Gas service will be discontinued to customers who continue to use such apparatus or equipment after being notified. UTILITY’S RIGHT OF ACCESS TO CUSTOMER’S PREMISES The Utility shall at all times have the right to enter and leave Applicant’s Premises for any purpose connected with the furnishing of gas service (meter reading, inspection, testing, routine repairs, replacement, maintenance, emergency work, etc.) and the exercise of any and all rights secured to it by law, or under Utility’s tariff schedules. These rights include but are not limited to: 1.

The use of a Utility-approved locking device, if Applicant desires to prevent unauthorized access to Utility’s facilities. 2. Safe and ready access for Utility personnel free from unrestrained animals. 3. Unobstructed ready access for Utility’s vehicles and equipment to install, remove, repair or maintain its facilities. 4. Removal of any and all of its property installed on applicants premises after the termination of service. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B No Changes – Reaffirmed JC TPM MDJ 07/23/15 E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1003.3 3 OF 5 GENERAL INFORMATION

OWNERSHIP & MAINTENANCE OF UTILITY’S FACILITIES Service pipe, meters, headers, regulators and other facilities furnished and installed by the Utility will continue to be the property of the Utility. They may be repaired or replaced by the Utility at any time and may be removed on termination of service. No rent or other charge may be made against the Utility for placing or maintaining its facilities on the customer’s premises. The customer will exercise reasonable care to prevent the facilities from being damaged or destroyed. In the event that the customer finds the gas service to be defective, they should notify the Utility immediately by calling (800) 411-SDGE (7343). A typical meter installation consists of the service riser coming up out of the ground to the pressure regulator which connects to the meter. The houseline, installed by the customer’ plumber, is connected by the Utility to the outlet side of the meter. Any changes to the houseline thereafter will be made by the customer or their plumber at the customer’ expense in accordance with applicable codes and regulations.

Adequate working space and access must be provided 24 hours per day for inspection and servicing by the Utility. Large meters (8C or larger) must be located so as to be available for servicing with large gas field service vehicle access to the meter location. See definition on page SG 1003.1. In all cases, it is highly advisable that a meter location be established by the Utility before detailed design of the building and awarding of the plumbing contract is done. HOUSELINE MODIFICATIONS In cases where a customer’s planned improvement or alteration to a building requires relocation or change to their houseline, such work must be done by the customer prior to the Utility re-routing its service pipe. It is the customer’s responsibility to tie-in a new houseline(s) to the existing houseline(s). It is also the customer’s responsibility to pay to the Utility any relocation charges for any service pipe which is relocated. An inspection clearance from the governmental Authority Having Jurisdiction (AHJ) is required before a

new houseline can be connected or an altered houseline can be reconnected. Should it be necessary to extend or enlarge a houseline because of added load, call the Planner at the Project Management Regional Office nearest your job location prior to connecting the houseline. (See page SG 2.) Large added gas loads, such as pool heaters, may require the replacement of the existing gas meter with a larger one to assure adequate pressure and flow. In many instances, a “hot change tee” has been installed on the outlet side of the gas meter. This tee is used to improve our service to the customer by allowing a meter change or test to be performed without interrupting the customer’s gas service. The tee is designed for use by the Utility only and must not be used for any other purpose by the customer or their plumber. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D

B No Changes – Reaffirmed JC TPM MDJ 07/23/15 E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1003.4 4 OF 5 GENERAL INFORMATION

RESALE OF NATURAL GAS It is not permissible for a customer to resell any of the gas received from the Utility to any other person, firm or corporation, except that the owner or lessee of any existing “Master Metered” mobile home park may resell to their tenants. Such resale of gas must be at rates identical to those rates the Utility would apply in the event that gas was supplied to the sub-consumer directly by the Utility. ELECTRIC BONDING & GROUNDING OF GAS PIPE The following are not permitted: 1. Electric bonding to the Utility’s gas service piping, gas risers, or meter facilities. 2. Using the Utility’s gas service piping, gas risers, or meter facilities for electrical grounding, or in a manner that the gas piping or other gas facilities become current-carrying conductors. MARKOUT SERVICE Before you begin digging at your building site, contact DigAlert for markout service, to avoid conflict with existing underground facilities. You may contact DigAlert by calling 811, Monday through Friday, 6:00 a.m. – 7:00 p.m., or visit their website, https://www.digalert.org/.

For emergency markout service only, call Service Dispatch at (619) 725-5100. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B No Changes – Reaffirmed JC TPM MDJ 07/23/15 E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1003.5 5 OF 5 GENERAL INFORMATION

This standard applies to new 3” or smaller gas services tapped off a 4” or smaller gas main or service. The trench and tie-in hole (weld hole) in which your service will be installed must conform to the minimum standards which appear below and on page SG 1004.2. GAS TRENCH ONLY TRENCH DETAIL TIE-IN HOLE DIMENSIONS D Depth = 12” below existing gas main W Minimum Dimensions W Width = 48” minimum for Width of Trench L Length = 60” minimum Gas Pipe Size Width 1” or Less 6” Note: The SDG&E Inspector will advise if field 2” 9” conditions warrant additional excavation. 3” 12”* * Width at coupling locations must be increased to 18” for 5’ on each end of coupling. Notes: A. Customer to contact the local city or county for an excavation permit and their requirements prior to excavation in the public right-of-way. State law requires you to contact DigAlert at 811 or visit www.digalert.org, at least 2 working days prior to excavation. B. A 3” base is required to prevent damage from rocks, sags or pockets. Imported material consisting of

natural sand or manufactured sand, existing native material or combinations may be used for base and shading material provided it complies with SDG&E (Utility) standards and the compaction requirements of the governmental agencies. Shading material must have a mixture of particle sizes all smaller than ½”. A minimum cover of 4” of compacted shading material (4” after compaction) shall be installed above gas pipe. A minimum cover of 12” of compacted shading material will be required if in the opinion of the Inspector there is an excessive amount of rocks and clods in the backfill. The shading material must be installed before the trench is backfilled to prevent damage from rocks, etc. The backfill material shall meet the requirements of all applicable codes, ordinances, and the Utility’s Standards and be free of debris and organic matter. The coarse material shall be well © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE

A Editorial Changes LSM IPJ TPM 11/01/17 D B Editorial Changes JC TPM MDJ 09/16/15 E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1004.1 1 OF 2 GAS TRENCH ONLY FOR SAN DIEGO COUNTY

distributed throughout the finer material. All base, shading and backfill must be approved by the Utility’s Inspector. C. After the Utility’s Inspector approves the trench, tie-in excavation, base shading and backfill material, the Utility will install and energize the gas service. When the gas service is energized, it must be covered during the same working day. The Utility’s Inspector must approve installation of shading material prior to backfilling. D Where Utility employees, or their contractors, are required to enter the trench, spoil must be placed a minimum of 24” from edge of trench. (See Gas Trench Only Trench Detail figure on page SG 1004.1.) If excavation at the gas main is 5’ or more in depth, all safety requirements, including shoring the tie- in hole (weld hole), must be met. E. No wet utilities, such as water, sewer or irrigation pipes are allowed in the service trench. A minimum 12” horizontal separation of undisturbed soil is required between your service trench and any water, sewer or drain pipe. A minimum 6” vertical separation is required for crossings. F.

All trench resurfacing shall be done according to the governmental agencies’ requirements. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B Editorial Changes JC TPM MDJ 09/16/15 E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1004.2 2 OF 2 GAS TRENCH ONLY FOR SAN DIEGO COUNTY

Table 1 Standard 7” Water Column (WC) Service Pressure Gas Meter Capacity & Section Meter Type & Size SDG&E Riser to Meter Capacity at 7” Maximum SDG&E Riser D=Diaphragm Houseline Spacing WC in SCFH Size at 7” WC R=Rotary Dimension D 250-275 250-275 ¾" STL x ½" PE 19” D 425 425 ¾" STL x ½" PE 19” D 630 630 ¾" STL x ½" PE 19” R 8C 800 1” 30” R 11C 175 1,100 1” 30” R 15C 175 1,500 1” 36” R 2M 175 2,000 1” 48” R 3M 175 3,000 1” 48” R 5M 175 5,000 1” 75” R 7M 175 7,000 1” 75” Table 2 High Pressure (5 PSIG) Service Pressure Gas Meter Capacity & Section Meter Type & Size SDG&E Riser to Meter Capacity at 7” Maximum SDG&E Riser D=Diaphragm Houseline Spacing WC in SCFH Size at 7” WC R=Rotary Dimension D 425 1,030 1” 48” R 8C 1,100 1” 48” D 630 1,500 1” 48” R 2M 175 2,600 1” 48” R 3M 175 4,000 1” 48” R 5M 175 6,600 1” 75” R 7M 175 9,200 1” 75” R 11M 175 14,500 1” 90” R 16M 175 21,100 1” 90” Notes: 1. Rotary type meters require truck access for installation and maintenance. 2. The SDG&E riser diameter selected for a meter does not need to match the service pipe diameter.

Use the “Maximum SDG&E Riser Size” column in the appropriate table above to make your selection. 3. The houseline should be located to the right of the meter set assembly. The flow of gas from inlet to outlet should be left to right. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1005 1 OF 1 GAS METER CAPACITY & SELECTION

METER & SERVICE LOCATION Location for gas meters and services shall comply with the provisions of this manual and applicable codes, laws, and ordinances of the governmental Authority Having Jurisdiction (AHJ) for inspection. It is necessary that the location for the meter and service be approved in writing by an SDG&E Planner. This can be accomplished by the customer or contractor contacting the Utility’s nearest Service Planning or Project Management Regional Office by telephone or the internet and requesting a “Meter and Service Location” form. See page SG 2 for contact information. METER LOCATIONS 1. Gas meters and regulators must be installed by the Utility in a readily accessible location, approved by the Utility on the customer’s premises. They must be capable of being reached quickly and conveniently 24 hours a day by an unobstructed access route for construction, operation, maintenance, inspection, testing or reading, and without requiring those seeking access to climb over or remove obstacles, or obtain special permission or security clearances. The access route must not

be prone to flooding, or planted with anything other than grass or artificial turf. 2. The Utility’s gas meters and service pipe are not permitted on, in, over or under a house, building, underground structure, breezeway, patio, wood deck, asphalt, concrete pad, carport or bio-retention facilities. 3. Large meters (8C or larger) must be located so as to be available for servicing with large gas field service vehicles. See definition of “Large Gas Field Service Vehicle Access” on page SG 1003.1. 4. Doors, gates or other such facilities which restrict access to any meter location, must be locked only with locking devices acceptable to the Utility. 5. For single and multiple occupancy buildings, meter and metering equipment may be installed: a. Outdoors and adjacent to a building b. Behind a wing wall c. For multiple occupancy buildings, meters and metering equipment are to be grouped at one location 6. For mobile home lots, meters and metering equipment may be installed: a. At or near the corner of the mobile home, closest to the Utility’s source b.

On a permanently installed structure near the front lot line of the mobile home lot c. At or near the corner of the mobile home lot, closest to the Utility’s source Note: Meters shall not depend on a flex gas houseline for support. A post, bracket or other means of rigid support is to be provided by the customer when required by the appropriate AHJ or Utility. See page SG 1013 for mobile home meter pad information. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B No Changes – Reaffirmed JC TPM MDJ 07/23/15 E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1006.1 1 OF 5 GAS SERVICE POLICIES & METER LOCATIONS

7. Meter headers are limited to two tiers to ensure safety of personnel and meter accessibility. 8. Meters must be located in a ventilated area. 9. A minimum of 3’ clear and level working space is required directly in front of any portion of the Meter Set Assembly (MSA) or recess. See pages SG 1012.1 – 1012.2 for minimum working space requirements for a building recess. 10. Gas regulators must be located away from openings into a building in order to allow gas to escape freely to the outside atmosphere in the event of a leak. The Utility is installing service regulators with internal relief valves for over pressure protection which may release gas through the regulator vent opening. See pages SG 1007.1 – 1007.5 for specific requirements. 11. Gas meters and service regulators must be protected from damage due to corrosion, extreme temperatures, vehicular traffic and moisture. Exposure to pool chemicals, dryer vents, lawn sprinklers, etc., must be avoided. GAS SERVICE POLICY FOR NEW PROJECTS – NUMBER OF SERVICES ALLOWED 1. Multi-family Residential Buildings – Less than 3 Stories High

One service per building will typically be granted. At the Utility’s discretion, and with approval from the AHJ, a second service may be granted if space is not available to group all the meters at one location. Gas Rule 16 will apply and residential allowances will be applied to the cost of the second service. Note: The 300’ rule that applies to electric service policies does not apply to gas. Justification for a second service is based on space constraints for meters, building layout, etc. 2. Residential or Mixed Use Buildings – 3 Stories or Greater One service per building will typically be granted. At the Utility’s discretion, and with approval from the AHJ, a second service may be granted if space is not available to group all meters at one location. Gas Rule 16 will apply and residential allowances will be applied to the cost of the second service. Note: The 300’ rule that applies to electric service policies does not apply to gas. Justification for a second service is based on space constraints for meters, building layout, etc. 3.

Residential Contiguous Dwellings – Townhouses (Row Homes) a. Each individual townhouse or duplex located on a parcel of land bounded by legal property lines must be provided with an individual gas service and meter(s) located on the property served. b. Each individual townhouse or duplex located on a single parcel of property divided with “assumed property lines” with approval from the AHJ may be provided with: i. An individual gas service and meter(s) located on the townhouse bounded by assumed property lines, or © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B No Changes – Reaffirmed JC TPM MDJ 07/23/15 E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1006.2 2 OF 5 GAS SERVICE POLICIES & METER LOCATIONS

ii. May be served through a single gas service, with meters grouped at one location in a common area. The header must be supported independent of the buildings containing dwelling units. Easements will be required to be established and recorded in the deed of every townhouse allowing for privately-owned gas lines to cross assumed property lines. The Utility is not involved in the easement process but it is important for developers to understand this requirement. 4. Single Premise – Multiple Non-Residential Enterprises (such as Shopping Centers & Office Buildings) One service per building will typically be granted. At the Utility’s discretion, and with approval from the AHJ, a second service may be granted if space is not available to group all meters at one location. Gas Rule 16 will apply and non-residential allowances will be applied to the cost of the second service. Note: The 300’ rule that applies to electric service policies does not apply to gas. Justification for a second service is based on space constraints for meters, building layout, etc. 5.

Single Premise – Single Non-Residential Enterprise (Customer) One service per premise serving a single enterprise will be granted. If a second service is approved, the customer will be required to pay the total estimated installed cost as a non-refundable payment. No allowances will be granted for the second service. 6. Single Premise – Multiple Residential Customers Each separate structure containing two or more legal dwelling units must be individually served by the Utility. Each dwelling unit must be individually metered by the Utility. Gas Rule 16 for Service Extensions and the residential allowances per Rule 15 for each dwelling unit will apply to each service. Approval by the AHJ is required. GAS SERVICE POLICY FOR EXISTING CUSTOMERS – REQUESTS FOR ADDITIONAL SERVICE 1. Multi-Family Residential Buildings – Less than 3 Stories High The customer should be instructed to plumb to the existing meter location. If field conditions make it impractical, a second service can be granted. The customer will be billed total installed cost. Master

to individual requests requiring a second service to accommodate all of the individual meters will be billed total installed cost. 2. Residential or Mixed Use Buildings – 3 Stories or Greater The customer should be instructed to plumb to the existing meter location. If field conditions make it impractical, a second service can be granted. The customer will be billed total installed cost. Master to individual requests requiring a second service to accommodate all of the individual meters will be billed total installed cost. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B No Changes – Reaffirmed JC TPM MDJ 07/23/15 E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1006.3 3 OF 5 GAS SERVICE POLICIES & METER LOCATIONS

3. Residential Contiguous Dwellings – Townhouses (Row Homes) a. Each individual townhouse or duplex located on a parcel of land bounded by legal property lines must be provided with an individual gas service and meter(s) located on the property served. b. Each individual townhouse or duplex located on a single parcel of property divided with “assumed property lines” may be provided with: i. An individual gas service and meter(s) located on the townhouse bounded by assumed property lines, or ii. May be served through a single gas service, with meters grouped at one location in a common area. The header must be supported independent of the buildings containing dwelling units. Easements will be required to be established and recorded in the deed of every townhouse allowing for privately-owned gas lines to cross assumed property lines. The Utility is not involved in the easement process but it is important for developers to understand this requirement. 4. Single Premise – Multiple Non-Residential Enterprises (such as Shopping Centers & Office Buildings)

The customer should be instructed to plumb to the existing meter location if same pressure. If high pressure is required, set new meter adjacent to existing meter location. Allowances will be granted towards Rule 16 costs. 5. Single Premise, Single Non-Residential Enterprise (Customer) The customer should be instructed to plumb to the existing meter location if same pressure. If high pressure is required, set new meter adjacent to existing meter location. Allowances will be granted towards Rule 16 costs. If reinforcement is required, customer will pay incremental cost of reinforcement less the allowance for new load. At the Utility’s discretion, a new service may be less expensive than the reinforcement of the existing service. If so, the customer would pay the cost for the new service less the allowance granted for the new load 6. Single Premise – Multiple Residential Customer The customer should be instructed to plumb to the existing meter location. For new service requests, each separate structure containing two or more legal dwelling units must be individually served by

the Utility. Each dwelling unit must be individually metered by the Utility. Gas Rule 16 for Service Extensions and the residential allowances per Rule 15 for each dwelling unit will apply to each service. Approval by the AHJ is required. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B No Changes – Reaffirmed JC TPM MDJ 07/23/15 E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1006.4 4 OF 5 GAS SERVICE POLICIES & METER LOCATIONS

SERVICE LOCATIONS 1. Gas services are to be installed along the shortest most practical route from the Utility’s closest source to the meter location acceptable to the Utility. Install services perpendicular to the gas main. Diagonal installation shall not be permitted. See pages SG 1006.1 – 1006.2 for meter locations. A joint service is limited to two risers per service line. 2. Each gas service must have a shutoff valve located outside of the building in a readily accessible location. The shutoff valve is not permitted in a locked security area. 3. Location of the Utility’s gas service pipe will be designed to avoid hazards or obstructions (particularly retaining walls, trees, plowed land, excessive moisture, and steep banks). 4. Service pipe must not be run under or through a building, underground structure, breezeway, patio (asphalt, concrete pad, or wood decking) or carport. 5. The route of the gas service pipe must be accessible for leakage patrol and maintenance. The service pipe must not be installed in a steep bank that is higher than 8’ and has a slope greater than a 3-to-1

ratio. The Utility must approve installation in slopes greater than 3-to-1. 6. During construction, if the area around the riser is to be paved, a 4” minimum diameter or square opening around the riser is required. This includes mobile home meter pads. This must be provided to prevent damage to the riser and to provide an escape route in the event of a gas leak. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B No Changes – Reaffirmed JC TPM MDJ 07/23/15 E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1006.5 5 OF 5 GAS SERVICE POLICIES & METER LOCATIONS

This Standard provides typical preferred and alternate utility placement in a joint trench for gas and electric service and meter installations, and gas meter set assembly separation requirements from electric meters, communication equipment, building openings, and miscellaneous equipment such as, but not limited to, tankless water heaters. The illustrations shown are typical for a residential single meter installation, but may be modified for multiple gas meter header installations and commercial/industrial premises. TYPICAL INSTALLATION WITH SERVICES & METERING ON RIGHT SIDE OF STRUCTURE AND ELECTRIC METER LOCATED LEFT OF THE GAS METER (PREFERRED LOCATION) Reference D7103 Not to Scale © 1998- 2019 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A EDITORIAL CHANGES LSM BRB TPM 08/16/16 D B EDITORIAL CHANGES IPJ IPJ CZH 10/15/19 E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE

SHEET SG 1007.1 1 OF 5 UTILITY PLACEMENT IN JOINT TRENCH & GAS METER SET ASSEMBLY INSTALLATION

TYPICAL INSTALLATION WITH SERVICES & METERING ON RIGHT SIDE OF STRUCTURE & ELECTRIC METER LOCATED RIGHT OF THE GAS METER (ALTERNATE LOCATION) Reference D7103 Not to Scale © 1998- 2019 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A EDITORIAL CHANGES LSM BRB TPM 08/16/16 D B EDITORIAL CHANGES IPJ IPJ CZH 10/15/19 E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1007.2 2 OF 5 UTILITY PLACEMENT IN JOINT TRENCH & GAS METER SET ASSEMBLY INSTALLATION

TYPICAL INSTALLATION WITH SERVICES & METERING ON LEFT SIDE OF STRUCTURE & ELECTRIC METER LOCATED RIGHT OF THE GAS METER (PREFERRED LOATION) Reference D7103 No to Scale © 1998- 2019 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A EDITORIAL CHANGES LSM BRB TPM 08/16/16 D B EDITORIAL CHANGES IPJ IPJ CZH 10/15/19 E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1007.3 3 OF 5 UTILITY PLACEMENT IN JOINT TRENCH & GAS METER SET ASSEMBLY INSTALLATION

TYPICAL INSTALLATION WITH SERVICES & METERING ON LEFT SIDE OF STRUCTURE AND ELECTRIC METER LOCATED LEFT OF THE GAS METER (ALTERNATE LOCATION) Reference D7103 Not to Scale © 1998- 2019 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A EDITORIAL CHANGES LSM BRB TPM 08/16/16 D B EDITORIAL CHANGES IPJ IPJ CZH 10/15/19 E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1007.4 4 OF 5 UTILITY PLACEMENT IN JOINT TRENCH & GAS METER SET ASSEMBLY INSTALLATION

Notes: 1. Size and dimensions of panels may vary. Illustrations on pages SG 1007.1 – 1007.4 are not to scale. 2 Wall area behind meter set assembly including headers, must be free of any obstructions such as water pipes, hose bibs, sewer clean outs, drain spouts, electric conduits, etc. No building vent, window or other openings, covered or uncovered, are allowed within 18” from the Utility gas riser vent, and from final grade to a height of 10’. Fixed windows are acceptable. Equipment, such as but not limited to, cable TV, telephone, inverters, disconnecting devices, transfer switches, etc., are also not allowed within 36” radially of the Utility gas riser vent, and from final grade to a height of 10’ above the gas meter set assembly as indicated by the clear zone. 3 Maintain 36” clear and level working space in front of gas and electric meters. 5. Electric bonding to or use of the Utility’s gas service piping, gas risers or meter facilities for electric grounding is not permitted. 7 Tankless water heaters require a minimum 36” radial clearance from the Utility gas riser vent to a

height of 10’ above grade and outside clear zone. A minimum 12” side clearance to the electric meter panel is required. The tankless water heater is not to be installed directly under electrical service and metering equipment. 8. Utility locations at property line connection point may vary. 9. Trench depth or width may vary according to what utilities are installed. Contact the SDG&E Planner or Inspector for further information. 10 The minimum distance between the gas riser and the building exterior is 12”. Refer to page SG 1009.1 for additional information on minimum clearances from building walls and corners and page SG 1009.3 for gas riser to wall spacing for larger meters. NOTE: For relocations or upgrades on existing installations, contact an SDG&E Planner. Reference D7103 Notes 4 and 6 have been intentionally omitted. © 1998- 2019 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A EDITORIAL CHANGES LSM BRB TPM 08/16/16 D

B EDITORIAL CHANGES IPJ IPJ CZH 10/15/19 E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1007.5 5 OF 5 UTILITY PLACEMENT IN JOINT TRENCH & GAS METER SET ASSEMBLY INSTALLATION

This standard provides illustrations and requirements for a prefabricated field installed gas meter cabinet for a single residential gas meter only. Meter Cabinet Installation Reference GAS D7103. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1008.1 1 OF 3 METER CABINET FOR SINGLE RESIDENTIAL GAS METER

Installation Requirements FIGURE 2 Reference GAS D7103. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1008.2 2 OF 3 METER CABINET FOR SINGLE RESIDENTIAL GAS METER

Installation Notes: 1. Overall dimensions 39 ½" x 24”. Maximum distance between bottom of cabinet and mudsill is 16”. Allow houseline stub to extend 3” outside of stucco. Center of SDG&E riser should be 4-½” from stucco. Meter sizes D 250 – 630 will fit in the cabinet. 2. The cabinet is designed to fit between studs on 16” centers. Add a second 2” x 4” on each side of the bay to support the flange. Cabinet back fits flush against inside wall. 3. Wall area behind meter cabinet must be free of any obstructions such as water pipes, spigots, clean outs, drain spouts, electric conduits, etc. 4. Maintain 3’ clear and level working space in front of gas meter cabinet. 5. No building vent, window, CATV, TELCO or other openings (covered or uncovered) are allowed within 36” from the SDG&E meter cabinet gas riser, and 5’ from the top of the meter cabinet. Fixed windows are acceptable. 6. The horizontal distance between the electric panel and gas riser must be a minimum of 36”. 7. Meter cabinet must be a minimum of 6” from the edge of the building. 8.

The cabinet cover may be painted to match the building. The prefabricated American Gas Products (AGP) ABS plastic cabinet, part number J-40 (with solid cover), is an approved cabinet. For more information, visit their website at https://www.americangasproducts.com/, or contact American Gas Products (AGP) Inc., P.O. Box 4777, Anaheim, CA 92803, via phone at (714) 235-6007 or email at AGP4777@gmail.com. Reference GAS D7103. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1008.3 3 OF 3 METER CABINET FOR SINGLE RESIDENTIAL GAS METER

This standard provides service riser and houseline spacing, clearances and minimum working space requirements for single and multiple gas meter installations. Minimum Clearance from Building Walls & Corners Notes: 1 18” may be reduced if there is no tripping hazard due to the building configuration. 2 The SDG&E riser for grouped meters is to be installed 18” out from building wall. Refer to page SG 1010.1, Note 3. Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1009.1 1 OF 3 GAS SERVICE RISER & HOUSELINE SPACING, CLEARANCES & MINIMUM WORKING SPACE

Installation Dimensions, Spacing, Clear & Level Working Space Notes: 1. Refer to Table 1 – Single Standard (7” WC) Pressure Meter Outside Installations and Table 2 – Single High Pressure (5 PSIG) Meter Outside Installation for dimensions and spacing requirements on page SG 1009.3. 2. Minimum clear and level working space is the area directly in front of the meter set assembly and extends 6’-6” above grade. Refer to Tables 1 and 2 on page SG 1009.3. General Notes: 1. Definitions: “High Pressure Metering” is gas pressure above 7” water column (WC) (¼ PSIG). “Standard Pressure Metering” is gas pressure equal to 7” WC (¼ PSIG at the meter outlet). 2. The Distribution Engineering and Gas Planning Sections of Gas Engineering must be consulted at least eight (8) weeks prior to the proposed meter installation date for the following cases: a. Any meter larger than an 11M Roots Meter. b. Any meter with a serving pressure greater than 5 PSIG. c. All proposed vault and curb meter box installations. d. The proposed installation of a gas header operating at 5 PSIG. e.

The proposed use of a gas meter room. Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1009.2 2 OF 3 GAS SERVICE RISER & HOUSELINE SPACING, CLEARANCES & MINIMUM WORKING SPACE

Table 1 – Single Standard (7” WC) Pressure Meter – Outside Installation Riser to Minimum Clear & Level Riser to Installation Space Meter Size Houseline Working Space – 78” Wall (Horizontal) Height x Width x 36” Deep Height Width Depth 250-630 12” 19” 42” 37” 18” 78” x 37” x 36” 8C 14” 30” 42” 57” 25” 78” x 57” x 36” 11C 14” 30” 42” 57” 25” 78” x 57” x 36” 1.5M/15C 14” 36” 42” 57” 25” 78” x 57” x 36” 2M175 14” 56” 48” 77” 25” 78” x 77” x 36” 3M175 14” 56” 48” 77” 25” 78” x 77” x 36” 5M175 14” 75” 54” 95” 25” 78” x 95” x 36” 7M175 14” 75” 54” 95” 30” 78” x 95” x 36” Table 2 – Single High Pressure (5-10 PSIG) Meter – Outside Installation Riser to Minimum Clear & Level Riser to Installation Space Meter Size Houseline Working Space – 78” Wall (Horizontal) Height x Width x 36” Deep Height Width Depth 425-630 12” 56” 36” 77” 28” 78” x 77” x 36” 8C TQM 14” 48” 52” 68” 28” 78” x 68” x 36” 15C 14” 48” 52” 68” 25” 78” x 57” x 36” 2M TQM 14” 48” 52” 68” 25” 78” x 57” x 36” 3M TQM 14” 48” 52” 68” 25” 78” x 68” x 36” 5M175 14” 75” 56” 95” 25” 78” x 68” x 36”

7M175 14” 75” 56” 95” 30” 78” x 95” x 36” 11M175 18” 90” 56” 111” 30” 78” x 95” x 36” Note: For serving pressures greater than 10 PSIG and for 16M meters, consult with SDG&E Planner who will coordinate with Region Engineering in Gas Technical Services – Miramar. Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1009.3 3 OF 3 GAS SERVICE RISER & HOUSELINE SPACING, CLEARANCES & MINIMUM WORKING SPACE

Typical Grouped Gas Meters (Residential) Typical Right Hand Header for Size 250 – 425 Gas Meters st Quantity of Meters Riser to 1 Houseline Spacing Additional Houseline Spacing 2-24 19” 16” st 2-24 with 1 large gas meter in 1 27” 16” position (11C max. size) Notes: 1. Meter headers are limited to two tiers to ensure meter accessibility and safety of personnel. 2. Wall area for gas meters must be entirely free of any obstructions such as water pipes, faucets, sewer cleanouts, drain spouts, electrical conduits, cable TV or telephone equipment. 3. The SDG&E service riser is to be installed 18” out from building wall on grouped meter locations. 4. See page SG 1010.8 for Adequate Support for Wall Mounted Meter Headers. Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A New Page LSM BRB TPM 11/01/17 D B E C F Indicates Latest Revision X Completely Revised New Page Information Removed

SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1010.1 1 OF 8 GAS METERS GROUPED ON METER HEADERS

Houseline Spacing for Single Tier Left Hand Headers Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A New Page LSM BRB TPM 11/01/17 D B E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1010.2 2 OF 8 GAS METERS GROUPED ON METER HEADERS

Houseline Spacing for Dual Tier Left Hand Headers Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A New Page LSM BRB TPM 11/01/17 D B E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1010.3 3 OF 8 GAS METERS GROUPED ON METER HEADERS

Houseline Spacing for Single Tier Right Hand Headers Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A New Page LSM BRB TPM 11/01/17 D B E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1010.4 4 OF 8 GAS METERS GROUPED ON METER HEADERS

Houseline Spacing for Dual Tier Right Hand Headers Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A New Page LSM BRB TPM 11/01/17 D B E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1010.5 5 OF 8 GAS METERS GROUPED ON METER HEADERS

Customer-Built Header Support Reference GAS D7107. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A New Page LSM BRB TPM 11/01/17 D B E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1010.6 6 OF 8 GAS METERS GROUPED ON METER HEADERS

Notes: A 60” maximum to center of each stanchion. B 2” x 6” treated Douglas fir backing for header. See Length Table below for sizing. C 2-½” steel pipe (minimum) set in concrete. D Minimum attachment is two ⅜” through bolts per stanchion. E 3” maximum F 24” minimum Length (in Inches) Table for Customer-Built Header Support Number of 2 3 4 5 6 7 8 9 10 11 12 Meters Right Hand 57 73 89 105 121 137 153 169 185 201 217 Header Left Hand 53 69 85 101 117 133 149 165 181 197 213 Header Reference GAS D7107. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A New Page LSM BRB TPM 11/01/17 D B E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1010.7 7 OF 8 GAS METERS GROUPED ON METER HEADERS

ADEQUATE SUPPORT FOR WALL MOUNTED METER HEADERS The purpose of this standard is to specify requirements which customers/builders must meet to provide adequate support for wall-mounted meter headers. The requirements are detailed below. When a header is required to serve a newly constructed structure, it is the customer’s/builder’s responsibility to provide adequate backing for the header attachment. The mounting wall must meet one of the following requirements: 1. Void-filled concrete block 2. Solid concrete (3½” minimum thickness) 3. 2” x 12” lumber blocking installed between studs and 2” above all houselines. (See Figure 1.) Mounting wall must be free from any obstructions for mounting the header such as water pipes, water spigots, clean outs, drain spouts, electric conduits, decorative wall finishes with irregular surfaces, etc. Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE

A New Page LSM BRB TPM 11/01/17 D B E C F Indicates Latest Revision X Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1010.8 8 OF 8 GAS METERS GROUPED ON METER HEADERS

This standard provides the requirements for meter locations behind wing walls. Notes: A No door or roof allowed. B When possible, wing wall height should not exceed 5’. C Length and width of meter location are determined by size and number of meters to be installed. D For riser and houseline positions, refer to pages SG 1012.2 – 1012.4. Reference GAS D7103. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1011 1 OF 1 GAS SERVICE & METER BEHIND WING WALLS

Gas Meter Recess Dimensions, Riser & Houseline Spacing for Typical Header Installations Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1012.1 1 OF 4 BUILDING RECESS FOR GAS SERVICE & METERS

Single Gas Meter Recess Dimensions, Riser & Houseline Spacing Table 1: Standard Pressure – 7” Water Column Riser to Riser to Recess Dimensions (Figure 1) Meter Size Back Wall Houseline Height Width Depth (Inches) (Inches) (Inches) (Inches) (Inches) 250-630 12 19 42 37 18 8C 14 30 42 57 25 11C 14 30 42 57 25 1.5M / 15C 14 36 42 57 25 2M 14 56 48 77 25 3M 14 56 48 77 25 5M 14 75 54 95 25 7M 14 75 54 95 30 Table 2: High Pressure – 5 – 10 PSIG Riser to Riser to Recess Dimensions (Figure 1) Meter Size Back Wall Houseline Height Width Depth (Inches) (Inches) (Inches) (Inches) (Inches) 425-630 12 56 36 77 28 8C 14 48 52 68 28 15C 14 48 52 68 25 2M 14 48 52 68 25 3M 14 48 52 68 25 5M 14 75 56 95 25 7M 14 75 56 95 30 11M 18 90 56 111 30 Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed

SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1012.2 2 OF 4 BUILDING RECESS FOR GAS SERVICE & METERS

1. “Building Recess” is an indentation of building wall, foundation and floor. A recess is open on the front so that the meter set assembly is visible. No doors, lattice work, or covers of any type are permitted. The building foundation must not cross any portion of the recess. 2. Only gas-related facilities will be permitted in the recess. Foreign equipment (e.g. ground rods, wires, conduit, electric equipment, CATV and Telco panels, sprinkler controls, water and waste piping, building windows, vents, etc.) is prohibited. Electric bonding to or use of SDG&E gas service piping, gas risers or meter facilities for electric grounding is not permitted. Gas recesses are not to be used for storage areas. 3. The interior of the gas meter access must be gas tight. The recess shall be sealed by the customer at all interior seams, corners, openings, etc., to prevent gas from migrating into any portion of the building or structure. The interior of the recess shall be the same material used on the building exterior provided it is gas tight.

Acceptable sealing materials include silicone-based and polyurethane- based compounds (e.g. trade names GE Silicone, Sikaflex 1A or equivalents). Requests for other materials for recess interior may be approved upon prior review by SDG&E. 4. The entire opening of the recess must be clear for installation and maintenance of the meter set assembly. A minimum 3’ clear and level working space must be maintained in front of the recess opening. The height of the working space extends 6’-6” minimum above final grade. The wall area above the recess must be free of projections that present a hazard to personnel servicing the meter set assembly. See Figure 1 for details. 5. Electric metering is not permitted above a gas recess. 6. The walls and ceiling of the recess must be flush with the exterior walls. Returns or jams on the side walls or ceiling are prohibited. The ceiling must be level or slope upwards from back to front with a 1” rise per 12” depth. 7. The depth of the recess must not exceed the depth listed for the particular meter size for which the recess was designed to accommodate.

When a recess is used on a non-residential structure and the gas load is unknown, the minimum interior height of the recess shall be 66” and the inside depth must not exceed 30”. 8. The bottom or floor of the recess may be dirt or paved, and it must be graded to prevent water from collecting inside the recess. During time of construction, if the recess floor is to be paved, an opening 4” in diameter or 4” square must be provided around the SDG&E riser. 9. For a recess housing a single meter, the SDG&E riser shall be 12” from the left side wall. For the riser to back wall dimension, refer to Table 1 and Table 2 below. The customer houseline shall not be closer than 6” to the right side wall. 10. For meter sizes up to and including 11C, houseline(s) must be 18” above final grade. The houselines for the upper level of a tier header must be 40” above the final grade (22” above lower level houselines). Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law.

REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1012.3 3 OF 4 BUILDING RECESS FOR GAS SERVICE & METERS

11. For serving pressures greater than 10 PSIG and for 16M meters, the Planner will consult with Region Engineering in Gas Technical Services – Miramar. Additional Requirements for Multiple Meters 12. For houseline spacing not given in this standard, refer to pages SG 1010.1 – SG 1010.6. 13. Meter headers must be limited to two tiers to ensure meter accessibility and safety of personnel. 14. SDG&E riser placement for all headers to be 12” from back wall and 18” from sidewall. 15. Depth of multiple meter recess for 250-425 meters is 18” maximum; for 675-11C meters 28” maximum. 16 Height of recess for single level header (Figure 2) is 48” minimum above final grade. 17 Height of recess for two tier header (Figure 3) is 66” minimum above final grade. 18 Width of recess for right hand headers a. Single and dual tier (Figure 2) – 18” riser to left sidewall, 19” riser to first houseline, 6” last houseline to right side wall, plus 16” for each additional houseline (250-425 meters). 19 Width of recess for left hand headers a.

Single and dual tier (Figure 3) – 18” riser to right sidewall, 6” riser to first houseline, 24” last houseline to left side wall, plus 16” for each additional houseline (250-425 meters). Reference GAS D9157. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1012.4 4 OF 4 BUILDING RECESS FOR GAS SERVICE & METERS

Notes: A 18” minimum horizontal clearance shall be maintained on all sides of the gas meter excluding the gas service riser and houseline. B If the area around the gas riser is to be paved, a 4” minimum diameter or 4” minimum square opening must be provided around the riser. C Meter and metering equipment may be installed: (1) At or near the mobile home closest SDG&E’s (Utility) source (2) On a permanently installed structure near the front lot line of the mobile home (3) At or near the corner of the mobile home lot closest to the Utility’s source D The gas meter set shall not depend on a flex gas houseline for support. A post, bracket or other means of support is to be provided by the customer when required by the governmental Authority Having Jurisdiction (AHJ) or the Utility. Reference GAS D7103.4. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1013 1 OF 1 MOBILE HOME METER PAD

This standard provides the requirements for customer-provided and -installed “non-removable” barricades. Barricade posts are used to protect meter and service equipment and personnel from vehicular contact and to prohibit encroachment into the working space. Examples include loading zones, driveways, congested areas, alleys, off-street parking such as side yards, etc. Service and metering equipment located on public or private property must be installed a minimum of 5’ back from face of curb or is considered subject to vehicular contact and requires barricade posts. Meters located on a wall adjacent to any parking area, or area accessible to vehicular traffic, must be protected by non-removable barricade posts. Wheel stops and removable barricade posts are not acceptable substitutes. Maintain a minimum of 3’ clear and level working space in front of the gas meter set assembly. An SDG&E Inspector will determine if a barricade can be omitted when existing structures can protect personnel and equipment. Meters will not be set until the barricades are installed.

© 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1014.1 1 OF 3 BARRICADES FOR GAS METER SETS

Notes: A Refer to Table 1 below. B Barricade height shall extend 3” above the meter set assembly or 4’ above the final grade, whichever is less. C For new meter installations, the barricade post separation shall not exceed 4’. D For new meter installations, the barricade posts must be a minimum of 3’ from the face of the meter set. E All barricade post tops at the same barricade site must be finished in the same manner. The top of the post(s) shall be finished with one of the following: (1) Tack welded steel cap or blank (2) Top 3” of post filled and crowned with concrete (3) Post top may be threaded and finished with an iron cap. F Welded and black iron areas of the completed barricade post(s) shall be primed and painted white. G When a stronger barricade is needed, horizontal braces are to be installed as follows: (1) Bottom row 18” above final grade (2) Top row no more than ½” below top of post (3) If the barricade posts are topped with threaded iron caps, the top horizontal brace shall be no more than ½” below bottom of cap. Table 1

A Barricade Steel Post Galvanized or Black H Concrete Footings G Horizontal Pipe Brace Size Minimum Minimum Pipe Size Wall Diameter Depth Pipe Size Wall (Inches) Thickness (Inches) (Inches) (Inches) Thickness (Inches) (Inches) Light Duty 3.216 12 24 2.154 Heavy Duty 4.188 12 30 4.188 © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1014.2 2 OF 3 BARRICADES FOR GAS METER SETS

Light duty bolt-down barricade posts shall be used only for existing residential and mobile home park meter sets. Bolt-down barricades are allowed to protect an existing single meter or headers for two meters only. Bolt-down barricades shall be installed only on good concrete and where there is potential danger of damaging underground facilities when excavating, or when the customer does not want their paving disturbed. Notes: A 3” black or galvanized steel pipe with a minimum wall thickness of.216”. B Black or galvanized steel plate ¼” x 12” x 12” minimum. C ¼” fillet weld. D Bolts (4) ⅝” x 4”, cadmium coated steel, Hilti “KWIK BOLT” or equivalent with ⅝” flat washer, cadmium coated steel E Post shall extend 3” above the meter set assembly or 45” above final grade, whichever is less. F The top of the post shall be finished with one of the following: (1) Tack welded steel cap or blank (2) Top 3” of post filled and crowned with concrete (3) Post top may be threaded and finished with an iron cap.

G Welded and black iron areas of the completed barricade post shall be primed and painted white. H All precautions must be taken to protect workers and passerby from resulting fumes if choosing to weld on galvanized metal. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1014.3 3 OF 3 BARRICADES FOR GAS METER SETS

This standard shows the minimum horizontal clearances for gas mains or services installed near padmounted equipment or substructures. Installation Notes: A Positions of primary and secondary conduits entering and leaving padmounted equipment depend on type of equipment, such as single or three-phase transformers. B. Maintain 12” minimum horizontal separation from edge of pad, handholes, vaults, etc., to gas main/service to prevent damage from driven ground rods and provide access to main/service in the future. C If retaining wall is to be installed, maintain 12” horizontal separation from footing. Footing width in Figure 1 is based on 4’-0” wall height with 3 to 1 slope. D. Gas pipe must not be located under any facility such as splice boxes, equipment pads, footings, etc. Reference GAS D7417.1. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F

X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1015.1 1 OF 7 GAS FACILITIES NEAR UNDERGROUND PADMOUNTED EQUIPMENT OR SUBSTRUCTURES

Notes: A Minimum dimensions are shown to obtain 12” horizontal separation from gas pipe to substructure or equipment pad. B Add 12” to dimensions shown if cable TV, telephone and electric conduits are being installed next to substructures or equipment pads in joint trench with gas. Reference GAS D7417.2. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1015.2 2 OF 7 GAS FACILITIES NEAR UNDERGROUND PADMOUNTED EQUIPMENT OR SUBSTRUCTURES

Reference GAS D7417.3. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1015.3 3 OF 7 GAS FACILITIES NEAR UNDERGROUND PADMOUNTED EQUIPMENT OR SUBSTRUCTURES

Reference GAS D7417.4. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1015.4 4 OF 7 GAS FACILITIES NEAR UNDERGROUND PADMOUNTED EQUIPMENT OR SUBSTRUCTURES

Reference GAS D7417.5. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1015.5 5 OF 7 GAS FACILITIES NEAR UNDERGROUND PADMOUNTED EQUIPMENT OR SUBSTRUCTURES

Reference GAS D7417.6. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1015.6 6 OF 7 GAS FACILITIES NEAR UNDERGROUND PADMOUNTED EQUIPMENT OR SUBSTRUCTURES

Reference GAS D7417.7. © 1998-2017 San Diego Gas & Electric Company. All rights reserved. Removal of this copyright notice without permission is not permitted under law. REV CHANGE BY DSGN APPV DATE REV CHANGE BY DSGN APPV DATE A Editorial Changes LSM IPJ TPM 11/01/17 D B E C F X Indicates Latest Revision Completely Revised New Page Information Removed SDG&E SERVICE STANDARDS & GUIDE SHEET SG 1015.7 7 OF 7 GAS FACILITIES NEAR UNDERGROUND PADMOUNTED EQUIPMENT OR SUBSTRUCTURES

San Diego Are a Chapter International Code Council Carlsbad, Chula Vista, Coronado, Del Mar, El Cajon, El Centro, Encinitas, Escondido, Imperial Beach, La Mesa, Lemon Grove, National City, Oceanside, Poway, San Diego City, San Diego County, San Marcos, Santee, Solana Beach, Vista San Diego Area Electrical Newsletters January 2023 Based on the 2022 edition of the California Electrical Code (2020 National Electrical Code) January 2023 San Diego Area Electrical Newsletters

About the San Diego Area Electrical Newsletters The San Diego Area Electrical Newsletters are developed through a cooperative effort of the San Diego Area Inspection Jurisdictions and are approved by the San Diego Area Chapter of the International Code Council. The newsletters provide the local jurisdictions a resource for interpretation and enforcement of the 2022 California Electrical Code (CEC) based on the 2020 edition of the National Electrical Code (NEC) in compliance with Article 90.4 that reads in part: "The authority having jurisdiction (AHJ) for enforcement of the Code has the responsibility for making interpretations of the rules, for deciding on the approval of equipment and materials, and for granting the special permission contemplated in a number of the rules." Examples of specific installations that are generally acceptable in the San Diego Area are included. Check with the local inspection jurisdiction before beginning any installation based on these newsletters. The 2023 Service Standards & Guide manual published by San Diego Gas & Electric Company (Utility) is

referenced to provide the Utility's electrical serving requirements as a courtesy to the electrical industry. These references are shown in boxed text. Additional California code requirements are found in the following: • California Green Code • The California Energy Codes Participating San Diego Area Inspection Jurisdictions City of Carlsbad City of Lemon Grove City of Chula Vista City of National City City of Coronado City of Oceanside City of Del Mar City of Poway City of El Cajon City of San Diego City of El Centro City of San Marcos City of Encinitas City of Santee City of Escondido City of Solana Beach City of Imperial Beach City of Vista City of La Mesa County of San Diego Boxed language refers to the Utility. January 2023 San Diego Area Electrical Newsletters

San Diego Are a Chapter International Code Council Table of Contents Code Reference Subject Page # 90.7, 110............................. Approval of Electrical Equipment................................................. 1 110.3(B),110.14(A)&(D)........ Torque Requirements................................................................ 2 110.26................................ Electrical Equipment Rooms...................................................... 3 110.26(A)&(E)...................... Dedicated Equipment Space-Outdoor......................................... 4 200.6, 210.5(C), 215.12........ Identifying Conductors............................................................... 5 210.52(E)............................ Unconditioned Enclosed Patio................................................... 6 220..................................... Electrical Service Plan Check Requirements................................ 7 230.2.................................. Number of Services................................................................. 8 230.70................................

Service Equipment – Disconnecting Means................................ 12 230.95................................ Ground-Fault Performance Testing........................................... 13 250 Part III.......................... Grounding Electrode System & Grounding Electrode Conductor... 15 250.52(A)(3)........................ Concrete-Encased Electrode (Rebar)......................................... 16 250.52(A)(5)........................ Ground Rods.......................................................................... 17 342, 344, 358...................... Underground Metal Conduit..................................................... 18 368..................................... Busways................................................................................. 19 408..................................... Switchboards & Panelboards.................................................... 20 445..................................... Generators............................................................................ 21 450.....................................

Transformers......................................................................... 23 490..................................... Examination of Electrical Equipment Exceeding 1,000 Volts........ 24 625..................................... Electric Vehicle Charging Systems (EVCS).................................. 26 625.48................................ Electric Vehicle Supply Equipment (EVSE).................................. 27 690..................................... Solar Photovoltaic Systems...................................................... 28 705.10................................ Alternate Sources of Power...................................................... 31 Index……………………………………………………………………………………………………………………………….32 January 2023 San Diego Area Electrical Newsletters

Approval of Electrical Equipment Code Reference: 2022 California Electrical Code Article 90.7, 110 Published: January 2008 Revised: January 2020 The authority having jurisdiction (AHJ) has the responsibility for making interpretations of the requirements of the California Electrical Code. It is the intent of this newsletter to address the locally accepted requirements for the listing and labeling of electrical equipment. Listing and labeling provides prima facie evidence that the electrical equipment is approvable by the jurisdiction. Equipment shall be listed and labeled by a Nationally Recognized Testing Laboratory (NRTL) that is recognized by the Federal Occupational Safety and Health Administration (OSHA), Department of Labor under 29 CFR 1910.7 for electrical equipment. https://www.osha.gov/dts/otpca/nrtl/ Equipment shall be installed per the manufacturer's installation instructions. Switchgear shall be installed per NEMA (National Electrical Manufacturer's Association) Standards. The equipment shall be approved by the jurisdiction for the location of the installation.

Electrical equipment installed without the required label is then required to be evaluated and labeled per this newsletter and per NFPA 790 and 791. The AHJ may request an evaluation by an approved evaluator for equipment that does not have an acceptable testing agency label. The following procedure is requested to be followed when a field evaluation is to be done: 1. Field evaluator shall notify the AHJ that they have been contracted to examine equipment. 2. Initial letter shall include the name of the tenant/owner, the address of the location of the equipment, the type of equipment, and the standards to which the equipment will be evaluated. The letter should also indicate if a preliminary evaluation was undertaken and the results of that preliminary evaluation. 3. Upon completion of the evaluation, the evaluator shall notify the AHJ in writing of the results of test, provide a copy of the report, and identify that their evaluation approval label has been affixed to the equipment.

It shall be understood that a completed Field Evaluation report and affixed label to any piece of equipment may only be considered approved for that exact location/environment where it was evaluated. Henceforth, if the piece of equipment is moved to another location, then an additional Field Evaluation shall be required. January 2023 San Diego Area Electrical Newsletters 1

Torque Requirements Code Reference: 2022 California Electrical Code Article 110.3 (B) and 110.14 (A) & (D) Published: October 1987 Revised: January 2020 Standards such as NEMA, ASTM, ANSI, and UL require all terminals and lugs to pass stringent tests as a part of the listing process. The listings for terminals and lugs include specific torquing requirements. All manufacturers are required to identify appropriate torque numeric values for each type of termination as part of their installation instructions. Calibrated torque tools shall be used to achieve the indicated torque. The contractor is responsible to ensure that all terminations are properly torqued. The local authority having jurisdiction (AHJ) has established the following inspection requirements: 1. The AHJ may require that torquing tools and manufacturer's torquing instructions be on the job site at the time of inspection; or 2. The AHJ may accept a letter from the contractor certifying that all terminations have been torqued in accordance with the manufacturer's instructions; or 3.

The AHJ may require that the contractor obtain an approved third-party testing agency to certify the proper torquing of all terminations. Notes: − When equipment torque labels cannot be read, or the label is missing, it is acceptable to use values found in NFPA 70 Informative Annex I. − If terminals have been over-torqued, then damaged equipment must be replaced. January 2023 San Diego Area Electrical Newsletters 2

Electrical Equipment Rooms Code Reference: 2022 California Electrical Code Article 110.26 Published: October 1987 Revised: January 2023 Section 110.26 uses the term "equipment" instead of "switchboards and panelboards". The intent is to include any type of equipment that contains overcurrent, switching, or control devices. The local authority having jurisdiction (AHJ) has made the following interpretations regarding this section: 1. Section 110.26 (C)(2) applies to equipment individually listed and marked with a rating of 1200A or more and over 6 feet wide. 2. Where pull sections are installed, the nameplate rating of the pull section shall determine the rating of the equipment and be included in determining the width of the equipment. Future expansion shall be included in the design of the working space and equipment layout when pull sections are rated 1200A or larger. Consult the Utility for their requirements relating to pull sections. 3. There shall be one entrance to and egress from the required working space not less than 24 inches wide

and 6½ feet high at each end of the working space. A single entrance to and egress from the required working space shall be permitted if either a. unobstructed egress or b. extra working space is provided. a. Unobstructed egress is defined as an egress path located entirely outside the minimum required working space area, a minimum of 36 inches in width, and is clear of any obstructions, from the equipment to a safe location outside the room or area. b. Extra working space is where the depth of the working space is twice that required by 110.26 (A)(1). A single entrance is permitted provided it is located so that the distance from the equipment to the nearest edge of the entrance is not less than the minimum clear distance specified in Table 110.26 (A)(1). This is a radial measurement from the equipment. (See drawing below.) 4. For electrical rooms containing equipment rated 800 amperes or more, personnel doors located within 25 feet of the equipment must have a minimum clear width of 32” (See CBC 1010.1,1), shall open out

(in the direction of egress) and be equipped with listed panic hardware or listed fire exit hardware. The Utility requires all doors to an electric meter room to be a minimum of 3’-0” wide or the width of the pull section, whichever is greater, and 6’-6” high. The door shall open in the direction of egress and be equipped with “lever-operated” hardware. Lever-operated hardware is a type that permits the door to be opened from inside the room without the use of hands. Consult with the Utility for Services rated 800 amps or more. Note: 5” conduit requires 6’ of working clearance in front of the pull section. January 2023 San Diego Area Electrical Newsletters 3

Dedicated Equipment Space – Outdoor Code Reference: 2022 California Electrical Code Article 110.26 (A) and (E) Published: August 2005 Revised: January 2023 The intent of this newsletter is to address installations where existing gas meters are located within the dedicated equipment space of electrical service equipment. Effective January 1, 2017, it is no longer acceptable for the gas meter to be located within the dedicated equipment space or the working space of the electrical service equipment. Where an existing gas meter is located below the electrical service equipment, you must consult the local Utility before starting any work to confirm the new installation meets current standards. January 2023 San Diego Area Electrical Newsletters 4

Identifying Conductors Code Reference: 2022 California Electrical Code Article 200.6, 210.5(C), 215.12 Published: January 2008 Revised: January 2023 The objective of this newsletter is to clarify when the identification and posting of the identification means are required for grounded circuit conductors, branch circuit conductors, and feeder conductors when more than one nominal voltage supplies a premise. For existing buildings: • When new branch circuit wiring is extended from an existing panelboard, those new circuits shall not be required to comply with Section 210.5 (C). January 2023 San Diego Area Electrical Newsletters 5

Unconditioned Enclosed Patio Code Reference: 2022 California Electrical Code Article 210.52 (E) Published: April 1985 Revised: January 2023 Enclosed patios are not considered to be habitable rooms and need not meet the outlet spacing requirements of Sections 210.52 (A). If the existing outdoor receptacle required by 210.52(E)(1) is enclosed by new construction, an additional GFCI protected receptacle shall be installed on the exterior wall of the Enclosed Patio. If adding an additional entrance or exit with grade level access, an additional switched lighting outlet shall be installed as per Section 210.70 (A)(2)(b). A suitably located single lighting outlet can serve more than one door. ALL LIGHTING SYSTEMS MUST COMPLY WITH CALIFORNIA TITLE 24 ENERGY EFFICIENCY REQUIREMENTS. January 2023 San Diego Area Electrical Newsletters 6

Electrical Service Plan Check Requirements Code Reference: 2022 California Electrical Code Article 220 Published: April 1985 Revised: January 2023 The intent of this newsletter is to clarify the general requirements for electrical plans for installations in the San Diego area. For new, single-family, residential services, an approved plot plan showing the size and location of the s service equipment is required. * When the service is rated over 200 amperes, additional information may be required by the authority having jurisdiction (AHJ). For Accessory Dwelling Unit (ADU) Electric Metering Requirements Consult the serving Utility. All commercial/Multifamily services require complete electrical plans. These plans shall include, but not limited to: • Service Equipment- Ampacity, Voltage, Number of Phases, and location of Service Equipment • The Short Circuit Current Rating (SCCR) of equipment • Feeder and Branch Circuit Overcurrent Devices • Conductor Type and Sizes • Panel Schedules describing both New and Existing Loads • Load Calculations • Fault-Current Calculations (if applicable)

• Conductor Type, Size, and wiring methods to be used • Grounding and bonding details Calculations to justify the proposed installation must be provided. Generally, power, lighting and single- line diagrams will be required as well as plans showing the location of all proposed electrical equipment to be installed. All electrical plans shall be signed as required by the State of California Business and Professions Code. Where applicable, electrical plans shall contain the California Energy Code Compliance document Title 24, Part 6. Note: These general plan requirements are based on typical installations. An AHJ may find it necessary to require additional plans or calculations at any stage of design or construction. * Consult with an AHJ for specific requirements based on size of service. * Consult with Local Utility January 2023 San Diego Area Electrical Newsletters 7

Number of Services (Page 1 of 4) Code Reference: 2022 California Electrical Code Article 230.2 Published: December 1981 Revised: January 2023 Some of the multiple services permitted as exceptions to Section 230.2 conflict with other provisions of Section 230, with SDG&E policy, and with established wiring methods in the San Diego area. Such services can present a hazard in certain normal and emergency situations. The intent of this newsletter is to establish conditions regarding the installation of multiple services that resolve such conflicts and provide for safety in both normal and emergency situations. Contact the authority having jurisdiction (AHJ) for zoning requirements that will determine whether more than one service will be allowed to a premise. Section 230.2. Number of Services: The basic requirement of 230.2 is that a building or other structure shall be supplied by only one service. However, the use of additional services is permitted by 230.2 (A) through (D). This article describes those conditions where more than one service is permitted.

If more than one service is installed, 230.2 (E) requires a permanent plaque or directory be installed at each feeder a disconnect location denoting all other feeders and branch circuits supplying that building or structure and the area served by each. (B) Special Occupancies. By special permission, additional services shall be permitted for [either of] the following: (1) Multiple-occupancy buildings where there is no available space for service equipment accessible to all occupants ("Multiple-occupancy" is interpreted to mean "multiple-tenant") (2) A single building or other structure sufficiently large* to make two or more services necessary * Structures Sufficiently Large: See SDG&E Service Standards & Guide, page SG 012.1-012.3, for dimensions. Special permission for (B)(1) will not normally be granted unless the building is sufficiently large enough to qualify for a second service as outlined in (B)(2). For existing buildings, special permission will be considered on a case-by-case basis. Generally, conditions (1) and (2) above will be required as well as

a plaque on each sub-panel to identify which service supplies the panel. If the Utility agrees to provide an additional service, consult the Utility for their requirements. January 2023 San Diego Area Electrical Newsletters 8

Number of Services (Page 2 of 4) Code Reference: 2022 California Electrical Code Article 230.2 Published: December 1981 Revised: January 2023 (C) Capacity Requirements - Additional services shall be permitted under any of the following: (1) Where the capacity requirements are in excess of 2,000 amperes at a supply voltage of 1,000 volts or less For multiple services, consult utility and reference SDG&E Service Standards & Guide pages SG 012.1- 012.3. (2) Where the load requirements of a single-phase installation are greater than the serving agency [local utility] normally supplies through one service, or (3) By special permission. Note: The disconnect(s) for such separate services shall be grouped. (D) Different Characteristics - Additional services shall be permitted for different voltages, frequencies, or phases, or for different uses, such as for different rate schedules. Note: The disconnect(s) for such separate services shall be grouped. A service of a different class is not required to be grouped with another service of a different class serving the building or structure.

SDG&E will not grant a second service unless the phase-to-neutral voltage is different than that of the existing service, regardless of the number of phases, except for capacity requirements as noted in (C) above. (E) Identification - Where a building or structure is supplied by more than one service, or any combination of branch circuits, feeders, and services, a permanent plaque or directory shall be installed at each service disconnect location denoting all other services, feeders, and branch circuits supplying that building or structure and the area served by each. See Section 225.37 Note 1: The plaque or directory required by Section 230.2(E) shall be manufactured in metal or plastic, suitable for the environment, with engraved or machine-printed lettering or electro- photo-plating in a contrasting color. The plaque shall include a footprint of the entire building, properly oriented, with the area served by each service clearly delineated. The plaques shall be located at the service disconnect and securely fastened by permanent means acceptable to the AHJ.

Note 2: Doors into electrical meter rooms shall be marked with a plainly visible and legible sign stating, "Electric Meter Room", "Electric Room", or " Meter Room". If there are multiple electric meter rooms, the doors must be marked "Electric Meter Room #___ of ___", as appropriate. Reference 2022 California Fire Code, Chapter 6, Section 603.4.1 Labeling. January 2023 San Diego Area Electrical Newsletters 9

In addition to the above requirements, when a building has more than one electric meter room, SDG&E requires that a plaque is secured to the exterior door of each electric meter room identifying the suites served by the meters in that room. Reference Service Standards & Guide, pages SG 017.1-017.3 January 2023 San Diego Area Electrical Newsletters 10

Number of Services (Page 4 of 4) Code Reference: 2022 California Electrical Code Article 230.2 Published: December 1981 Revised: January 2023 TYPICAL PLAQUE FOR EXISTING BUILDINGS WITH INTERMIXED SERVICES The plaque or directory shall be manufactured in metal or plastic, suitable for the environment, with engraved or machine-printed lettering or electro-photo-plating in a contrasting color. The plaque shall include a properly oriented footprint of the entire building. The plaques shall be located at the service disconnect and securely fastened by permanent means acceptable to the AHJ. January 2023 San Diego Area Electrical Newsletters 11

Service Equipment – Disconnecting Means Code Reference: 2022 California Electrical Code Article 230.70 Published: August 2005 Revised: January 2020 The intent of this newsletter is to provide a guideline for the location of a building's service disconnecting means. Section 230.70 (A)(1) requires that the service disconnecting means be installed in a readily accessible location either outside of a building or structure or inside nearest the point of entrance of the service conductors. An uncontrolled length of unfused conductor or bus in other than the Utility vault room or the service equipment room represents a hazard to the structure. Some buildings, due to design restrictions cannot have the service disconnecting means immediately adjacent to the service point. A maximum of 10 feet of unfused conductor or bus from the service point to the building's service disconnecting means is permissible. January 2023 San Diego Area Electrical Newsletters 12

Ground-Fault Performance Testing (Page 1 of 2) Code Reference: 2022 California Electrical Code Article 230.95 Published: April 1989 Revised: January 2023 Section 230.95 requires that ground-fault protection of equipment shall be provided for solidly grounded wye electrical services of more than 150 volts to ground but not exceeding 1,000 volts phase-to-phase for each service disconnect rated 1,000 amperes or more. The grounded conductor for the solidly grounded wye system shall be connected directly to ground... without inserting any resistor or impedance device. Subsection (C) requires testing of such system to assure that the equipment performs its intended function. This code section does not define who is to perform these tests or what information is to be included in the written report for the authority having jurisdiction (AHJ). Additionally, the requirement that these tests be performed on the system ''when first installed on-site" often results in a test of a system that is incomplete. (See boxed text.)

A ground-fault protective system includes the ground-fault device (main disconnect and fault current sensor) and all wiring supplied by this device. For this reason, performance testing should normally be accomplished after all wiring is installed to ensure that the ground-fault device functions properly. The following standards are established to assure that performance testing of ground-fault systems is accomplished in a uniform and acceptable manner: 1. Performance testing shall be performed by a third-party testing company acceptable to the AHJ and capable of demonstrating both the knowledge and the equipment necessary for such tests. 2. The ground-fault protective system must be tested after all wiring is installed and before the building is approved for final occupancy. This test must be performed prior to the AHJ authorizing the local utility to energize the service equipment. Exception: The use of permanent service equipment for temporary power is common in the industry. The standards established by this newsletter are intended to recognize and permit this use. Where

a temporary service is allowed for construction or equipment testing, prior to the final approval of the building, it is permissible for the testing of the ground-fault protective system to be accomplished in two separate parts. Part 1. Testing of the ground-fault protective device must be completed before the service will be energized, along with testing all neutral and ground connections installed at the time of the Part 1 testing. This provides a reasonable level of protection for the service equipment during the period that temporary wiring is in use. Part 2. All remaining neutral and ground connections not tested in Part 1 shall then be tested after all wiring is installed and before the building is approved for final occupancy. This testing normally requires a Utility outage, but the outage may be waived at the discretion of the testing company performing the test. Note: Most ground-fault protective device testing requires that the service be de-energized. There are fees for the Utility to disconnect and reconnect the power. This applies to Part 1 and Part 2 if the service

is required to be disconnected. Contact the Utility Planner for additional information. January 2023 San Diego Area Electrical Newsletters 13

Ground-Fault Performance Testing (Page 2 of 2) Code Reference: 2022 California Electrical Code Article 230.95 Published: April 1989 Revised: January 2023 3. A written record of the testing shall be provided, by the contractor, to the AHJ and shall include: a. A statement that the testing was performed in accordance to the manufacturer's instructions and in accordance with the procedures of the International Electrical Testing Association (NETA) b. A statement that the service grounding connections are correctly installed for a ground-fault system c. A statement that all neutral conductors in the distribution system have been tested and found to be ungrounded (Describe the test method used) d. A statement that the ground-fault equipment functioned properly when tested January 2023 San Diego Area Electrical Newsletters 14

Grounding Electrode System & Grounding Electrode Conductor Code Reference: 2022 California Electrical Code Article 250 Part III Published: December 1981 Revised: December 2020 This section has generated many questions regarding the use of metal underground water pipes as grounding electrodes, the type of grounding electrodes acceptable as supplements to a metal underground piping system, and the type of grounding electrode required where there is no underground water piping on the premises. The intent of this newsletter is to interpret Sections 250.50, 250.52, and 250.53 so that the requirements for grounding electrode systems are related to typical construction methods in a practical and consistent manner. The intent of Section 250.50 is to ensure that at least one permanent and effective grounding electrode is installed for every building or structure, and that all electrodes are at the same potential with respect to the earth. The following requirements for the installation of grounding electrodes meet the intent of Section

250.53, are consistent with typical construction methods, and are mandatory in the San Diego area: 1. Any construction that includes new concrete foundations shall be provided with a concrete- encased electrode installed per the requirements of Section 250.52 (A)(3). Note: Where a concrete-encased electrode of the type identified in Section 250.52 (A)(3) is not available at final, a grounding electrode consisting of a minimum 20 feet of #2 bare copper conductor buried at a depth of 30" in a trench parallel to and at least 18" away from the foundation of building may be substituted. The conductor forming the grounding electrode must be continuous, unbroken and un-spliced, and be connected to the electrical service. Ground rods are not acceptable substitutes for the required grounding electrodes for new construction. A connector is always required where the grounding electrode conductor enters the service equipment. 2. Other new construction shall be provided with at least one of the grounding electrodes specified in sections 250.52 and installed in compliance with section 250.53.

When new or replacement services are installed for existing buildings, existing underground metal water piping systems shall be supplemented by an additional electrode. 3. Grounding electrodes and grounding electrode conductors shall not be installed within wiring compartments with Utility-sealed access doors or covers. When the Utility installs their seal, the compartment is no longer considered accessible for inspection by the authority having jurisdiction (AHJ). January 2023 San Diego Area Electrical Newsletters 15

Concrete-Encased Electrode (Rebar) Code Reference: 2022 California Electrical Code Article 250.52 (A)(3) Published: May 1980 Revised: December 2020 The NEC makes it clear that underground metal water pipe can no longer be relied upon to assure a permanent and effective ground. To this end, several different grounding electrodes are identified as acceptable alternatives to the water pipe. The two most commonly used are the ground rod and the concrete-encased electrode. The use of ground rods and concrete-encased electrodes has raised questions. The intent of this newsletter is to identify the minimum requirements for an acceptable concrete-encased electrode constructed of reinforcing steel (rebar), commonly called a "ufer'' ground. These minimum requirements are as follows: 1. The #4 (½") or larger rebar to which the grounding electrode conductor is connected must be a minimum of 20 feet long, unbroken. 2. The total developed length of rebar at the bottom of the foundation must be no less than 20 feet.

Where splices are necessary to obtain the required 20 feet of rebar, they must be made so that the 2 bars overlap by no less than 15 inches and are secured by at least 2 steel tie wires. 3. The rebar may only extend out of the slab in a dry location. 4. The rebar must extend out of the slab at least 6 inches and no more than 18 inches and the point of connection of the grounding electrode connector must be accessible. Exception to #4: Where the connection of the grounding electrode conductor is encased in concrete and the connector is listed for concrete encasement. January 2023 San Diego Area Electrical Newsletters 16

Ground Rods Code Reference: 2022 California Electrical Code Article 250.52 (A)(5) Published: April 1985 Revised: December 2023 The following interpretations are intended to alleviate the more common problems and establish guidelines for a ground rod installation that will be generally accepted in the San Diego area: 1. It is acceptable to install one or more driven ground rods so that no more than 3 inches projects above ground level. Connection of the grounding electrode conductor shall be made on this accessible portion of the rod. The portion of the rod with the listing mark and a ground rod clamp listed for this purpose shall be inspected by the authority having jurisdiction (AHJ). Ground rods should be installed in areas where they are not subject to physical damage or shall be provided with protection from such damage. 2. Due to adverse soil conditions in the San Diego area, galvanized ground rod and/or pipe are not acceptable. Only listed stainless steel or non-ferrous rods are acceptable. 3.

It shall also be permissible to completely cover the ground rods or ground plates provided the connection to the electrodes is made by listed means and inspected prior to covering. January 2023 San Diego Area Electrical Newsletters 17

Underground Metal Conduit Code Reference: 2022 California Electrical Code Article 342, 344, 358 Published: April 1985 Revised: January 2020 It is the finding of the authorities having jurisdiction (AHJs) in the San Diego area that the soil conditions are not suitable for the direct burial of metallic conduits. Experience has shown that direct buried metallic conduits corrode rapidly. Therefore, the direct burial of metallic conduit is prohibited in the San Diego area. Exception 1: Listed Rigid Metal Conduit encased in concrete may be installed underground. Exception 2: Intermediate Metal Conduit, Rigid Metal Conduit, and Electrical Metallic Tubing with an approved "factory-applied" non-metallic coating may be installed underground according to the manufacturer's listing and installation instructions. The AHJ may approve "field- applied" materials utilizing a listed primer and wrap, or coatings, for short sections or repairs of metallic raceways. Note: These exceptions do not apply to conduits containing Utility-owned conductors. Consult the Utility for their requirements.

January 2023 San Diego Area Electrical Newsletters 18

Busways Code Reference: 2022 California Electrical Code Article 368 Published: August 2005 Revised: January 2023 The intent of this newsletter is to provide information only. The guidelines for the testing and acceptance of busway installations to ensure protection against potential life-safety hazards are included. 368.1 Scope. This article covers service-entrance, feeder, and branch-circuit busways and associated fittings. 368.2 Definition. The definition in this section shall apply within this article and throughout the Code. Busway. A raceway consisting of a metal enclosure containing factory-mounted, bare or insulated conductors, which are usually copper or aluminum bars, rods, or tubes. Busway installations are common for customer-owned service entrance installations from the Utility's service point to the service equipment, for unmetered feeder installations, for high-rise multifamily construction with remote metering, and for metered feeder installations to accommodate multiple taps for distribution.

Several incidents of transposed phase or neutral conductors have resulted in the Utility closing into a fault condition when energizing a new transformer. Busways shall be installed to meet the requirements of Article 368 and the manufacturer's installation instructions. The Utility requires all service entrance and unmetered feeder busways be tested in accordance with the latest edition of the International Electrical Testing Association, Inc. (NETA), Acceptance Testing Specifications for Electrical Power Distribution Equipment and System. An independent testing organization acceptable to the AHJ and the Utility shall perform a continuity test on each busway section to confirm proper phasing and connection after each section is installed. The installer of the system shall provide a written test report to the AHJ and the Utility's Inspector. The AHJ will not release an inspection clearance to the Utility, nor will the Utility energize its transformer and the service until receipt, review, and acceptance of the written test report. January 2023 San Diego Area Electrical Newsletters 19

Switchboards & Panelboards Code Reference: 2022 California Electrical Code Article 408 Published: June 1990 Revised: January 2020 The testing and listing standards for switchboards and panelboards require that the manufacturer identify any equipment intended to be installed in the field. The part or catalog number on a label in the switchboard or panelboard must identify equipment intended for field installation. The manufacturer must also provide any instructions necessary for the proper installation of such equipment. These requirements specifically include terminal connectors. Most switchboards are designed to be connected to other sections or equipment with splice and through bus. Some switchboards also provide a set of factory-installed terminals for tapping a single circuit ahead of the service main. Very few switchboards are designed for the field installation of terminals on busses in order to make cable connections. Switchboards and panelboards designed for this application will

include the required markings and installation instructions at the time they are originally manufactured. The following procedures are established to ensure that switchboards and panelboards are installed in conformance with the testing and listing standard for such equipment: 1. Plan reviewers will approve plans showing field connection of cable to busses when there is documentation from the original equipment manufacturer (OEM) that the equipment is suitable for the field installation of terminals. 2. All new switchboards and panelboards will be inspected to determine compliance with the listing and manufacturer's instructions provided with the equipment. 3. All installations of new cables in existing switchboards and panelboards will be inspected to determine compliance with the listing and manufacturer's instructions provided with the equipment. In some cases, this will require changes to existing cable connections. Special attention will be given to conductor bending space, the routing of the conductors for heat

dissipation in close proximity to the bus, and proper conductor support independent of energized bus. 4. Existing switchboards and panelboards not designed and marked for the field installation of terminals may be modified in the field, when: a. A third-party manufacturer certifies compliance with applicable industry standards by providing approved engineered drawings prepared by a PE registered in the State of California and through a field evaluation acceptable to the AHJ with special attention given to conductor bending space, the routing of the conductors for heat dissipation in close proximity to the bus, and proper conductor support independent of energized bus as well as isolation methods to protect against inadvertent contact to energized bus ahead of the main. Note: The Utility requires submittal of engineered drawings for approval prior to the installation of terminals or bussing for service entrance use. An example is when a field tap is required in an existing terminating enclosure to facilitate the addition of new service and metering equipment. Reference

SDG&E Service Standards & Guide page SG 517.1. January 2023 San Diego Area Electrical Newsletters 20

Generators (Page 1 of 2) Code Reference: 2022 California Electrical Code Article 445 Published: August 2007 Revised: January 2023 The purpose of this newsletter is to clarify the requirements for permanently installed stationary engine generators such as stand-alone (sole source of power) and back-up generator systems. Also, see Articles 700, 701, and 702 for emergency, legally required, and optional standby systems. Types of Generator Systems In general, there are two types of generator systems, "Stand-Alone" and "Back-Up" generators. "Stand-Alone" – Generator systems provide the primary source of power to the premises wiring system and are not connected to SDG&E's distribution system. There may be additional sources of power, such as solar photovoltaic and batteries, that are interconnected with a "stand-alone" generator system to provide additional reliability. "Back-Up" – There are two types of back-up generator systems: 1. The "Emergency System" is intended to supply power essential for safety to human life when normal power fails.

When required, the generator shall be outside of the building or in a room designed to provide equivalent protection from fire or damage. The room shall be identified "Emergency Generator Room" in 1-inch block letters on a red plaque. Such systems have stringent requirements and use a completely isolated wiring system to ensure service in an emergency. 2. The "Standby System" is intended to protect private business or property and may be integrated into existing wiring. These systems can be turned on manually or automatically when the primary power fails. The standby system is intended only to provide back-up electricity and not intended to permanently replace existing Utility power. Basic Requirements for Generator Systems: 1. A building permit is required. a. Applications for permits must include three copies of a plot plan with a detailed description of the proposed work, the location of the generator, existing structures, utilities, property lines, etc. b. All installations will require a single-line drawing showing the size of the generator, location

of generator disconnecting means, the overcurrent protection, grounding and wiring methods, type of transfer device, and the connection to the current premises wiring system. January 2023 San Diego Area Electrical Newsletters 21

Generators (Page 2 of 2) Code Reference: 2022 California Electrical Code Article 445 Published: August 2007 Revised: January 2023 c. The generator shall have adequate capacity and rating for the supply of all equipment intended to be operated at one time. (Equipment may be lighting, motors, heating, receptacles, and any other end use equipment the generator is intended to serve.) d. The manufacturer's data sheet(s) for the generator and transfer device shall be submitted. e. The complexity of the job will dictate which disciplines (mechanical, electrical, fire, structural, noise, hazardous materials, zoning, APCD, etc.) need to review and approve the plans. All systems powered by liquid fuel shall be approved by the authority having jurisdiction (AHJ) and all appropriate agencies, i.e. fire departments, County of San Diego, Department of Environmental Health, Hazardous Materials Division, Air Pollution Control District, etc. 2. Permanent stationary engine generators shall be listed or evaluated to comply with UL 2200.

Engine generators evaluated for hazardous locations are evaluated to both UL 2200 and NFPA 496. 3. Generator systems shall comply with the property line sound level limits per applicable AHJ. An acoustical analysis may be required prior to final inspection approval. 4. A plaque shall be installed at the electrical service disconnect indicating type and location of the on-site generator power source(s) and its disconnect location. See the sample plaque in Newsletter 705.10. 5. Generator locations must also comply with Article 430.14, Location of Motors. Note: Portable generators intended for cord and plug connections are not allowed to be hard-wired or cord-connected to a premise wiring system without a code-compliant method of isolating the wiring service from the Utility Service. In addition, portable generators do not qualify as a required stand-alone or back-up system. Electrical permits are not normally issued for portable generators. However, consult with the appropriate AHJ and the Utility for specific requirements.

In compliance with the California Health & Safety Code, the Utility shall be notified in advance of installing "back-up" systems for review and approval of the transfer device and sequence of operations. January 2023 San Diego Area Electrical Newsletters 22

Transformers Code Reference: 2022 California Electrical Code Article 450 Published: December 1981 Revised: January 2023 Means of Disconnect: Transformers, other than Class 2 or 3, are required to have means of disconnect on the primary side of the transformer. If the means of disconnect is in a remote location, the disconnect shall be lockable in accordance with Article 110.25 and the transformer must be marked with the location of the disconnecting means. The means of identifying the remote disconnect shall be a plaque made of metal or plastic, with engraved or machine-printed letters in a contrasting color to the plaque, which shall clearly identify the location of the disconnect. The plaque shall be attached to the exterior of the transformer or on an adjacent wall with a method acceptable to the authority having jurisdiction (AHJ) per Article 450.14. Ventilation: Transformers in enclosed spaces shall have provisions to maintain an ambient temperature that does not exceed the temperature rating of the transformer. Note: Consideration of the conductor insulation

temperature rating must be given in areas containing transformers when the ambient temperature exceeds 86 degrees ℉ (30 degrees ℃). Refer to the ampacity correction factors in Tables 310.15 (B)(1) & (2) when needed. Transformer ventilations may be accomplished by natural or mechanical ventilation, by mechanical cooling, or by other means. 1. Mechanical ventilation that provides for air movement of three cubic feet per minute/per kVA of transformer rating shall be acceptable. 2. Mechanical cooling, which can be demonstrated to maintain an ambient temperature below that of the transformer rating, shall be acceptable. 3. Any other means, including combinations of the above methods which can be demonstrated to maintain an ambient temperature below that of the temperature rating of the transformer, shall be acceptable. Note: For transformer vault rooms, see Article 450 III. SDG&E requirements for transformer vaults are contained in the SDG&E's Transformer Vault Specification manual. January 2023 San Diego Area Electrical Newsletters 23

Examination of Electrical Equipment Exceeding 1,000 Volts (Page 1 of 2) Code Reference: 2022 California Electrical Code Article 490 Published: January 2014 Revised: January 2023 Intent: The San Diego area has seen an increase in the number of primary (systems exceeding 1,000 volts) services and distribution systems in all jurisdictions. The 2016 edition of the California Electrical Code includes a number of requirements for the installation, testing, and grounding of medium-voltage equipment and systems exceeding 1,000 volts nominal. The local authority having jurisdiction (AHJ) may have specific requirements regarding these installations. Consult your local AHJ if there are questions. Code Requirements (Reference only) 1. Wire methods over 1,000 volts (Article 300.31) 2. Conductors rated 2,001-35kV (Article 311) 3. Grounding of AC systems over 1kV (Article 250, Part X) 4. Equipment over 1,000 volts nominal (Article 490) 5. Surge arresters over 1kV (Article 242, Part III) 6. Requirements for installations over 600 volts nominal (Article 110, Part III) 7. Transformers (Article 450) 8.

Outside branch circuits and feeders over 1,000 volts (Article 225, Part III) 9. Substation design, documentation, and required diagram (Article 490.48) 10. PV systems between 1,000 and 1,500 volts (Article 690.7) Plan, Equipment, Design, & Submittal Requirements 1. Plan submittals are required for all work. 2. Equipment submittals shall be accurate. 3. Design submittals are required from a State of California Licensed Electrical Engineer. Utility Requirements • Refer to Electrical Utility Service Equipment Requirements Committee (EUSERC) drawings. • Medium-voltage service and metering equipment – See SDG&E Service Standards & Guide SG 601-609 • Consult Utility for possible additional requirements for testing. January 2023 San Diego Area Electrical Newsletters 24

Examination of Electrical Equipment Exceeding 1,000 Volts (Page 2 of 2) Code Reference: 2022 California Electrical Code Article 490 Published: January 2014 Revised: January 2023 Inspection Requirements 1. Approved plans shall be available at the time of the inspection. 2. Manufacturer's installation instructions shall be available at the time of the inspection. 3. Equipment installed shall be both listed and labeled or field evaluated by an acceptable testing agency. See Electrical Newsletter pg.1 “Approval of Electrical Equipment” for additional information. 4. Grounding of Equipment shall meet the requirements of Article 250, Part X. 5. Terminations: When required by design specifications, hi-pot testing of cables, and/or partial discharge testing (to IEEE standards) shall be performed by a qualified company who either meets NETA standards or is NETA accredited. Existing Systems 1. When working on existing systems, it is necessary to verify that requirements of CEC 250.180 are met. 2. Minimum testing of the existing equipment shall be line-voltage meggering to verify acceptable

resistance and identify blatant defects. January 2023 San Diego Area Electrical Newsletters 25

Electric Vehicle Charging Systems (EVCS) Code Reference: 2022 California Electrical Code Article 625 Published: January 2017 Revised: January 2023 The intent of this newsletter is to clarify general requirements for the permitting and inspection of plug- in Electric vehicles (PEV). For specific requirements, consult your authority having jurisdiction (AHJ). Plan Review and Design Criteria The following items shall or may, depending on the AHJ's requirements, be required to obtain a permit for an EVCS installation: General: 1. Plans are required to have electrical sections and a site plan. If a commercial grade system is proposed, then typically, a registered professional engineer may be required to design the electrical system. 2. For residential system level two, or less, consult the AHJ for further information and permitting requirements. 3. Zoning and Planning approvals may require consideration for setbacks, height limitations, parking requirements, open space easements, Utility easements, etc. Consult with the local zoning technician for further information. 4.

For PEV charging stations provided as public accommodations facilities or within covered multi- family dwelling units, the designer should consult the California Building Codes for minimum access requirements. The Electrical Section of the submittal shall include: 1. Provide cover sheet with each page identified for content. 2. Each submitted sheet shall have a page number. 3. Submit the appropriate number of plan sets and supporting documents when applying for permits. Verify with the AHJ the number of plan sets required. 4. Plans shall include the specifications, the level of charging, physical location of the existing electrical equipment, method of wiring, and new EVCS. Plans shall also indicate the applicable design code edition. 5. Plans shall include an electrical line diagram showing the number of EVCS with voltage and kilowatt ratings, the size of all electrical panel bussing and the size of the circuit breaker in amperes, and short circuit rating of equipment (including energy management system when used).

Include wiring methods, sizing, grounding, and calculations in conformance with Article 625 and other applicable articles of the CEC. 6. Plans shall also include the manufacturer's data sheets for all equipment. All electrical equipment shall be listed for this purpose. All equipment includes, but is not limited to, inverters, controllers, metering, and interconnection system equipment. January 2023 San Diego Area Electrical Newsletters 26

Electric Vehicle Supply Equipment (EVSE) Code Reference: 2022 California Electrical Code Article 625.48 Published: January 2014 Revised: January 2023 The serving Utility currently supports interconnection of an Electric Vehicle (EV) as a source of electrical energy for the purpose of operating in parallel with the Utility’s electrical distribution system. California Electrical Code (CEC) Article 625 will apply. Use of an EV as an optional source of standby electrical power must meet the requirements of CEC Article 702 and Utility review and approval of the proposed transfer switch is required. Additional related laws in the State of California are as follows: • The legislature of the State of California has enacted the California Health and Safety Code, Division 104, Part 15, Sections 119075 through 119090, which is intended to prevent electricity generated by permanent or portable electric generator from back feeding into a Utility electrical system. • The California Code of Regulations, Title 8, Section 2320.9 states:

− No electrical power source, permanent or temporary, shall be connected to a premises wiring system, or parts of such a system, unless positive means are used to prevent the transmission of electricity beyond the premises wiring system, or beyond any intentionally segregated parts of such a system. You may consult with the Utility for their requirements to qualify and be approved for an EV interconnection with the Utility distribution system. When planning for your PEV, consult the Utility for advantageous Time of Use rate schedule information specific to EV charging. January 2023 San Diego Area Electrical Newsletters 27

Solar Photovoltaic Systems (Page 1 of 3) Code Reference: 2022 California Electrical Code Article 690 Published: August 2005 Revised: January 2023 The intent of this newsletter is to clarify general requirements for permitting and inspection of Solar Photovoltaic systems. For specific requirements, consult your authority having jurisdiction (AHJ). Other agencies may have requirements in addition to the following building department requirements, and include, but are not limited to: • California Center for Sustainable Energy (CSE) – State rebates • California Department of Housing and Community Development (HCD) – State agency for manufactured homes • County of San Diego Department of Environmental Health (DEH) • Fire Districts Plan Review and Design Criteria The following items shall or may, depending on the AHJ's requirements, be required to obtain a permit for a PV installation: General: 1. Plans are required to include both electrical and structural design. The plans shall be designed and stamped in accordance with the Business and Professions Code. www.cab.ca.gov 2.

For stand-alone PV systems (not interconnected with the Utility's system), consult the AHJ for further information. 3. If the proposed system is for a manufactured home, the State of California must also be contacted. Permit and inspection will be required from the State. 4. If proposed system is ground-mounted and the parcel has a septic system, you must have Department of Environmental Health approval for the location. 5. Zoning and Planning approvals may be required for consideration of setbacks, zoning height limitations, FAA restrictions, environmentally sensitive areas, brush management areas, open space easements, Utility easements, etc. 6. Supply-side connections require pre-approval by the Utility, the AHJ, and must not violate the panelboard manufacturer's listing. (see newsletter on Approval of Electrical Equipment) January 2023 San Diego Area Electrical Newsletters 28

Solar Photovoltaic Systems (Page 2 of 3) Code Reference: 2022 California Electrical Code Article 690 Published: August 2005 Revised: January 2023 The Electrical Section shall include: 1. Provide cover sheet with each page identified for content. 2. Each submitted sheet shall have a page number. 3. Submit appropriate number of plan sets and supporting documents when applying for permits. Verify with AHJ the number of plan sets required. 4. Plans shall include the specifications and physical location of the existing electrical equipment and new PV system. Design plans should also indicate the applicable electrical code edition. 5. An electrical single-line diagram showing the number of photovoltaic panels with voltage and kilowatt output, module series fusing, all disconnects, all inverters with input and output ratings, the size of all electrical panel bussing, and the size of the PV circuit breaker in amperes. Include wiring methods, sizing, grounding, and calculations in conformance with Article 690 and other applicable articles of the CEC. 6.

Where a PV system includes Energy Storage System (ESS), ESS equipment shall comply with CEC 706 and CFC 1207. 7. Plans shall also include the manufacturer's data sheets for all equipment. All electrical equipment shall be listed for this purpose. All equipment includes but is not limited to inverters, modules, converters, controllers, and interconnection system equipment. 8. Devices used to ground PV Modules in accordance with CEC 690.43 (A) shall be listed and labeled for use with the specific module used and installed per the module manufacture installation instructions. 9. A plaque identifying the location of all customer self-generation equipment, the service point, the DC disconnect(s), and the AC disconnect for Utility Operation, if required, must be installed on the service equipment per the specifications shown on page 31 of this Newsletter. January 2023 San Diego Area Electrical Newsletters 29

Solar Photovoltaic Systems (Page 3 of 3) Code Reference: 2022 California Electrical Code Article 690 Published: August 2005 Revised: January 2023 The Structural Section shall include: Plan Review Items: 1. All roof-mounted and ground-mounted solar PV arrays will require an approved plot plan with all property, setback, and easement lines properly marked. Additionally, the location of all overhead power lines shall be shown on the plot plan. Consult with the Utility for clearance requirements from power lines. If the proposed system is roof-mounted, the plans must clearly indicate fire fighter access points and pathways as required by California Building Code (CBC) 3111, California Residential Code (CRC) R324, and California Fire Code (CFC) 1205. An elevation plan may be required. Consult with the AHJ for specific requirements. 2. A plan view of the installation of the PV solar panels including racks or other supports, details of the supporting structure, connections to the roof framing members, and the calculated roof and wind-loading values. 3.

A registered architect, structural engineer, or civil engineer shall also stamp any plans requiring, but not limited to, soils reports, high-strength concrete footings, shop-fabricated support structures, field-fabricated ground-mounted support structures or field welding. 4. Check with the AHJ regarding specific requirements. Design Criteria Items: 1. Dimensioned layout of the arrays and footing details for the supporting structure. 2. All arrays must be attached to either an approved racking system or the proposed support structure and attachment methods must be certified by a State of California licensed civil or structural engineer or subject to AHJ structural plan review and approval. 3. If the roof or wind-loading values exceed 5 pounds per square foot (or 7 pounds per square foot depending on the AHJ's requirement), the engineered system's plans and calculations must be stamped by a registered architect, structural engineer, or civil engineer. Information on the Utility's requirements for interconnection and Net Energy Metering can be found

on their website at www.sdge.com/solar. The Utility may require the customer to provide an AC disconnect(s) that is/are capable of being visibly checked in the open position and be lockable. The AC disconnect(s) is/are to be located immediately adjacent to the electric service and meter location. Contact the Utility for exceptions to the location of the AC disconnect(s) location. PV systems will not be authorized for interconnection until all Utility requirements have been completed which includes the Utility receiving an inspection clearance from the AHJ. January 2023 San Diego Area Electrical Newsletters 30

Alternate Sources of Power Code Reference: 2022 California Electrical Code Article 705.10 Published: August 2005 Revised: January 2023 This is a sample of the plaque or directory required when there is an alternate source of power connected to the premises wiring system. For this plaque example, a Solar photovoltaic System is the alternate source of power. A single plaque shall properly reflect the location of all alternate power sources, the disconnects, and the utility service point(s). The plaque or directory shall be manufactured in metal or plastic, suitable for the environment, with engraved or machine-printed lettering or electro-photo-plating in a contrasting color. The plaque shall include a properly oriented footprint of the entire building. The plaques shall be located at each source disconnect location and securely fastened by a permanent means acceptable to the AHJ. A single plaque shall properly reflect the location of all alternate power sources, the disconnects, and the utility service point(s).

The plaque or directory shall be manufactured in metal or plastic, suitable for the environment, with engraved or machine-printed lettering or electro-photo-plating in a contrasting color. The plaque shall include a properly oriented footprint of the entire building. The plaques shall be located at each source disconnect location and securely fastened by a permanent means acceptable to the AHJ. January 2023 San Diego Area Electrical Newsletters 31

Index Subject Page # Approval of Electrical Equipment..........................................................................................................1 Busways........................................................................................................................................... 19 Concrete-Encased Electrode (Rebar).................................................................................................. 16 Electric Vehicle Charging Systems (EVCS)........................................................................................... 26 Electric Vehicle Supply Equipment (EVSE)........................................................................................... 27 Electrical Equipment Rooms.................................................................................................................3 Electrical Service Plan Check Requirements..........................................................................................7

Examination of Electrical Equipment Exceeding 1,000 Volts........................................................... 24–25 Generators................................................................................................................................. 21–22 Ground Rods.................................................................................................................................... 17 Ground-Fault Performance Testing............................................................................................... 13–14 Grounding Electrode System & Grounding Electrode Conductor........................................................... 15 Identifying Conductors........................................................................................................................5 Number of Services....................................................................................................................... 8–11 Dedicated Equipment Space-Outdoor...................................................................................................4

Service Equipment – Disconnecting Means......................................................................................... 12 Solar Photovoltaic Systems.......................................................................................................... 28–31 Switchboards & Panelboards.............................................................................................................. 20 Torque Requirements..........................................................................................................................2 Transformers.................................................................................................................................... 23 Unconditioned Enclosed Patio..............................................................................................................6 Underground Metal Conduit............................................................................................................... 18 January 2023 San Diego Area Electrical Newsletters 32