4. SCE Electrical Service Requirements.pdf

SOUTHERN CALIFORNIA EDISON

TRANSMISSION AND DISTRIBUTION

Electrical Service Requirements

(ESR)

2025— FOURTH QUARTER ISSUE

October 31, 2025

►SCE Public◄

Note: Printed and downloaded versions of this document are uncontrolled. In the case of a conflict between printed/downloaded and electronic versions of this document, the controlled version published on the Company portal prevails.

Copyright © 2025 Southern California Edison. All rights reserved.

No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, without the prior written permission of Southern California Edison.

Direct technical questions/comments to:

Email: Standards.Engineering@sce.com

Published by:

Transmission & Distribution • Southern California Edison

Standards & Publications, 1 Innovation Way, Pomona, California 91768-2560 mailto:Standards.Engineering@sce.com

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Electrical Service Requirements

Electrical Service Requirements

(ESR)

Revision Summary 2025 Fourth Quarter Issue

Effective Date: October 31, 2025

Overview The main purpose of this revision summary is to describe new revisions to this manual. (Some or all of the information may have been previously communicated to field personnel by other means.)

Table 1 lists the revisions. Clickable page/sheet numbers link directly to individual revisions or the first of a series of revisions.

Table 2 defines four types of revisions: (1) Admin (Administrative), (2) Technical, (3) New, and (4) Pilot.

Note: Admin and Technical revisions to existing standards or existing Pilot projects are identified with change bars in the left margin. New standards (as well as new pilot projects) do not receive change bars. Editorial revisions, such as corrections to spelling, do not receive change bars.

A Getting Help section provides contact information.

Table 1: Revisions

Chapter Page Description Type

ESR-1 Sheet 27-29 New section 12.9 added to the ESR: Meter Socket Adapter

(MSA)

Technical

ESR-3 Sheet 24-25 Figure 3-6: Added Note 9 - Ringless-type meter sockets are not acceptable.

Figure 3-7: Added Note 9 - Ringless-type meter sockets are not acceptable.

Amin

ESR-3 Sheet 24 Updated Figure: 3-5 Revise the burial coverage minimum depth from 30" to 24" and replace Concrete Envelope with Concrete Slurry

Admin

ESR-3 Sheet 44 Added Note 15: Ringless-type meter sockets are not acceptable.

Added Note 16: The owner or developer must consult with SCE Local Service Office prior to determining the location of service equipment.

Admin

ESR-4 Sheet 1, 8, 13 Replace all instances of Customer-Owned Transformer Room (COTR) with Customer-Owned Transformer Vault Room (COTVR).

Admin

ESR-5 Sheet 5 Clarified language by adding "meter" to specify that ringless-type meter socket enclosures shall not be installed.

Admin

ESR-9 Sheet 8 Updated Note 28: Double personnel doors are required for all hatch-type COTVRs, in addition to the equipment hatch opening.

Admin

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Getting Help Technical Issues If you have any comments, corrections, questions, or suggestions concerning manual revisions, please contact one of the following individuals at the numbers provided, or click on the name to send an email.

• Standards.Engineering@sce.com

Fernando A. Garcia

Director | Asset Management & Engineering

Table 2: Revision Types

Type Definition

Admin Administrative revisions do not significantly affect design, construction, maintenance or operation of the electrical distribution, substation, and transmission systems. They do not require Standards Review Team (SRT) or management approval; however, they have been approved by other organizations, as appropriate. They may include updates to material codes, updates to references, updates to standards for clarity, or deletions of outdated information.

Technical Technical revisions are engineering changes to existing standards. They affect the design, construction, maintenance or operation of the electrical distribution, substation, and transmission systems. They require SRT and management approval.

New Refers to a new standard. New technical standards require SRT and management approval.

Pilot A Pilot is an in-field evaluation of a piece of equipment or work method, with the intention of approving for standardized use. Pilot standards will have a PILOT watermark so that they are easily identified throughout this manual.

mailto: standards.engineering@sce.com mailto:standards.engineering@sce.com mailto:standards.engineering@sce.com

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ESR–1: General Information

TABLE OF CONTENTS

SECTIONS AND SUBSECTIONS PAGE

1.0 Scope and Purpose 1–3

2.0 Edison Office Locations, Telephone Numbers, and Community Index 1–3

3.0 Energy Management Programs 1–16

3.1 Residential 1–16

3.2 Commercial/Industrial/Agricultural 1–16

4.0 Dig Alert 1–16

5.0 Plug-In Electric Vehicles 1–16

5.1 Customer’s Responsibility 1–16

5.2 Panel/Meter Options 1–17

6.0 Voltage Standards 1–20

6.1 Standard Distribution Voltages 1–20

6.2 Customer-Service Voltages 1–20

6.3 Customer-Utilization Voltages 1–21

7.0 Customer Transformation and Harmonic Interference 1–21

7.1 High-Voltage Service 1–22

7.2 Low-Voltage Service 1–22

8.0 Agricultural Power Service — Three-Phase, 240 V and 277/480 V 1–22

8.1 100 A Service 1–22

8.2 200 A Service 1–23

8.3 Above 200 A Service 1–23

9.0 Overhead Service 1–23

9.1 To Customer’s Service and Meter Pole 1–23

9.2 To Customer’s Building or Structure 1–23

10.0 Underground Service 1–23

10.1 To Customer’s Service and Meter Post 1–23

10.2 To Customer’s Building or Structure 1–23

11.0 Service or Meter Switch — General Requirements 1–24

12.0 Customer Generators 1–24

12.1 Equipment Review 1–25

12.2 Location and Access 1–25

12.3 Equipment Marking/Labeling 1–25

12.4 Prohibited Metering Locations 1–25

12.5 Switch and Disconnect Requirements 1–26

12.6 Voltage Standards 1–26

12.7 Safety-Socket Box with Factory-Installed Test-Bypass 1–26

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SECTIONS AND SUBSECTIONS PAGE

12.8 Generation Meter Adapter (GMA) 1–26

12.9 Meter Socket Adapter (MSA) 1–27

13.0 Short-Circuit Current 1–30

13.1 10000 A and Below (100–400 Maximum Amperes Self-Contained

Type Meter Panels) 1–30

13.2 Greater than 10000 A—Multi-Family Residential (Three or More Grouped Meters), Commercial, and Industrial 1–30

13.3 Exceptional Cases 1–30

14.0 Electric and Magnetic Fields 1–30

14.1 Electric Fields 1–30

14.2 Magnetic Fields 1–31

14.3 SCE’s Corporate Electric Magnetic Fields Policy 1–31

14.4 Sources of Magnetic Fields 1–31

14.5 Magnetic Field Management Techniques 1–33

14.6 Summary 1–34

15.0 Residential Area Installations 1–35

15.1 Hazardous Areas by Class and Division 1–35

15.2 Location of Service Facilities 1–35

15.3 Electrical Y Seal Conduit Sealing Vertical Fitting and Material Application 1–35

15.4 Service Cable Replacement 1–35

FIGURES

1–1 Overhead Service 1–18 1–2 Underground Service 1–19 1–5 Sources of Magnetic Fields 1–32 1–6 Meter Panel Locations 1–33 1–7 Magnetic Field Strength Measurements — 1Ø Pad-Mounted Transformer 1–34 1–8 EYS Conduit Sealing Vertical Fitting 1–37

TABLES

1–1 Service Planning Office—Telephone Numbers and Locations 1–4 1–2 Service Center Planning Directory 1–6 1–3 Customer-Service Voltages 1–21 1–4 Customer Utilization Voltages 1–21 1–5 Short-Circuit Current 1–30 1–6 Magnetic Fields from Electrical Appliances 1–32

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ESR–1: General Information

1.0 Scope and Purpose

The Electrical Service Requirements (ESR) presented in this document provide detailed amplifications of certain established rules of Southern California Edison (SCE), An Edison International Company, (also referred to as the “Company”) pertaining to electrical service connections, together with customers’ installations of service wiring and service equipment. These requirements are issued for the guidance and assistance of electrical contractors, engineers, architects, and manufacturers engaged in the installation and design of electrical service wiring and service equipment. As an additional convenience, certain extracts from G.O. 95, Rules for Overhead Line Construction; G.O. 128, Rules for Construction of Underground Electric Supply and Communications Systems, of the California Public Utilities Commission (CPUC) concerning service installations have been included as references.

In localities where no local ordinance is in force and where no provision has been made for inspection by local or other authorities, the Company shall determine if a service wiring installation has been made in a safe and workman-like manner before making a service connection to such installation.

For the purpose of these requirements, the customer or any other person, firm, or corporation making a service wiring installation will be considered the “electrical contractor.”

Any unusual situation, not specifically covered in these ESRs, should be referred to the Company Service Planning Office in the location where the service is supplied. Service Planning Offices are located at various Service Centers throughout the SCE territory. To find the telephone number of the Service Planning Office nearest you, see Table 1–1.

2.0 Edison Office Locations, Telephone Numbers, and Community Index

Southern California Edison has an extensive network of Customer Service offices and telephone information numbers to serve builders, developers, and electrical contractors. Table 1–1 is an alphabetical listing of SCE Service Centers with addresses and planning office telephone numbers. Table 1–2 is an alphabetical listing of cities and communities served by the Company and indicates the SCE Service Center responsible for its service. Use this table to identify the SCE Service Center serving the geographic location for which you need assistance. The corresponding telephone number for the Service Center can be found in Table 1–1. Call this number when information is needed for new construction, relocation of metering facilities, overhead or underground wiring, temporary power poles, or any question or request that may require a technical response regarding these subjects. When calling these locations please ask for the service planner for your specific project location.

If you need additional information or technical assistance relating to these requirements, contact Gilbert Aceves at (909) 329-9445 or e-mail him at gilbert.aceves@sce.com. For administrative inquiries, such as new manuals, revisions, and so forth, call (909) 548-7108 or FAX

(909) 548-7050. In addition, you may address your technical questions to the attention of Gilbert Aceves at:

Southern California Edison Transmission and Distribution, Construction Methods 14005 S. Benson Ave.

Chino, CA 91710-7026 mailto:Gilbert.Aceves@sce.com

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The General Service number, (800) 655-4555, is provided for establishing electrical service in a customer’s name, meter reading, and billing questions, requests for discontinuing service, information regarding delinquent accounts, and questions of a general nature. Information is also available on our Web site: http://www.sce.com/.

Table 1–1: Service Planning Office—Telephone Numbers and Locations

Service Center Location Telephone/

FAX Number

Antelope Valley 42060 10th Street West, Lancaster, CA 93534-4349 (661) 726-5617

FAX (661) 726-5680

Arrowhead 26364 Pine Avenue, Rimforest, CA 92378 (909) 336-4204

FAX (909) 336-4220

Barstow 30553 Rimrock Road, Barstow, CA 92311 (760) 252-6416

FAX (760) 252-6406

Bishop 4000 West Line Street, Bishop, CA 93514 (626) 302-5542

FAX (760) 873-2921

Blythe 505 West 14th Avenue, Blythe, CA 92225 (760) 921-1605

FAX (760) 922-0662

Catalina Island 2800 East Willow Street, Long Beach, CA 90806 (562) 981-8237

FAX (562) 981-8289

Compton P.O. Box 4699, Compton, CA 90224 1924 Cashdan Street, Compton, CA 90224

(310) 608-5023

FAX (310) 608-5033

Covina 800 West Cienega, San Dimas, CA 91773 (909) 592-3709

FAX (909) 357-6185

Foothill 7951 Redwood Avenue, Fontana, CA 92336 (909) 357-6516

FAX (909) 357-6113

Fullerton 1851 West Valencia Drive, Fullerton, CA 92833 (714) 870-3225

FAX (714) 870-3284

Huntington Beach 7333 Bolsa Avenue, Westminster, CA 92683 (626) 302-3039

FAX (714) 895-0188

Kernville 120 Woodland Drive, Wofford Heights, CA 93285 (760) 376-8008

FAX (760)-376-4973

Long Beach 2800 East Willow Street, Long Beach, CA 90806 (562) 981-8237

FAX (562) 981-8289

Mammoth P.O. Box 7329 3001 Chateau Road, Mammoth Lakes, CA 93546

(626) 302-5542

FAX (760) 924-4823

Monrovia 1440 South California Street, Monrovia, CA 91016 (626) 303-8489

FAX (626) 303-8406

Montebello 1000 Potrero Grande Drive, Monterey Park, CA 91755 (323) 720-5220

FAX (323) 720-5252

Ontario 1351 East Francis Street, Ontario, CA 91761 (909) 930-8591

FAX (909) 930-8438

Palm Springs 36100 Cathedral Canyon Drive, Cathedral City, CA 92234 (760) 202-4286

FAX (760) 202-4294

Redlands 287 Tennessee Street, Redlands, CA 92373 (909) 307-6791

FAX (909) 307-6714

Ridgecrest 510 South China Lake Boulevard, Ridgecrest, CA 93555 (626) 302-5542

FAX (760) 375-1554

Saddleback 14155 Bake Parkway, Irvine, CA 92618 (949) 458-4416

FAX (949) 458-4472

Menifee 26100 Menifee Road, Menifee, CA 92585 (951) 928-8290

FAX (951) 928-8377

http://www.sce.com/

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San Joaquin Valley P.O. Box 900, Tulare, CA 93275 2425 South Blackstone Avenue, Tulare, CA 93274

(559) 685-3235

FAX (559) 685-3287

Santa Ana 1241 South Grand Avenue, Santa Ana, CA 92705 (714) 973-5653

FAX (714) 973-5790

Santa Barbara 103 David Love Place, Goleta, CA 93117 (805) 683-5211

FAX (805) 683-5293

Santa Monica 1721 22nd Street, Santa Monica, CA 90404 (310) 315-3271

FAX (310) 315-3217

Shaver Lake P.O. Box 29, Shaver Lake, CA 93664 41694 Dinkey Creek Road, Shaver Lake, CA 93664

(559) 841-3191

FAX (559) 841-3178

South Bay 505 Maple Avenue, Torrance, CA 90503 P.O. Box 2944, Torrance, CA 90509-2944

(310) 783-9389

FAX (310) 783-9388

Tehachapi 421 West “J” Street, Tehachapi, CA 93561 (661) 823-2599

FAX (661) 823-2511

Thousand Oaks 3589 Foothill Drive, Thousand Oaks, CA 91361 (805) 494-7040

FAX (805) 494-7008

Valencia 25625 West Rye Canyon Road, Valencia, CA 91355 (661) 257-8255

FAX (661) 257-8259

Ventura 10060 Telegraph Road, Ventura, CA 93004 (805) 654-7444

FAX (805) 654-7323

Victorville 12353 Hesperia Road, Victorville, CA 92392 (760) 951-3219

FAX (760) 951-3159

Whittier 9901 Geary Avenue, Santa Fe Springs, CA 90670 (562) 903-3123

FAX (562) 903-3174

Wildomar 24487 Prielipp Drive, Wildomar, CA 92595 (951) 249-8301

FAX (951) 249-8636

Yucca Valley 6999 Old Woman Springs Road, Yucca Valley, CA 92284 (760) 369-5412

FAX (760) 369-5409

Table 1–1: Service Planning Office—Telephone Numbers and Locations (Continued)

Service Center Location Telephone/

FAX Number

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Table 1–2: Service Center Planning Directory (Sheet 1 of 11)

City Service Center City Service Center

Acton Antelope Valley Azusa Monrovia

Acton Valencia Bagdad Yucca Valley

Adelanto Victorville Baker Barstow

Aerial Acres Ridgecrest Bakersfield San Joaquin Valley

Agoura Thousand Oaks Balance Rock Kernville

Agoura Hills Thousand Oaks Balboa Huntington Beach

Agua Dulce Valencia Balboa Island Huntington Beach

Agua Fria Arrowhead Baldwin Hills South Bay

Aguanga Wildomar Baldwin Hills Santa Monica

Alberhill Wildomar Baldwin Park Monrovia

Alessandro Menifee Banning Redlands

Alhambra Montebello Banning Palm Springs

Alpine Forest Antelope Valley Banning Foothill

Alpine Glen Arrowhead Bardsdale Ventura

Alpine Village San Joaquin Valley Barstow Barstow

Alta Loma Foothill Barton Flats Redlands

Alta Loma Ontario Bassett Covina

Altadena Monrovia Bear Valley Springs Antelope Valley

Amberton Ventura Beaumont Redlands

Amboy Yucca Valley Bell Compton

Anaheim Fullerton Bell Canyon Thousand Oaks

Anaheim Santa Ana Bell Gardens Compton

Angelus Oaks Redlands Bellflower Compton

Antelope Acres Antelope Valley Belltown Foothill

Anza Menifee Belmont Shore Long Beach

Apple Valley Victorville Belvedere Montebello

Arcadia Monrovia Benton Bishop

Argus Ridgecrest Beverly Hills Santa Monica

Arlington Ontario Big Bear Lake Redlands

Armona San Joaquin Valley Big Bear Lake Victorville

Arnold Heights Menifee Big Creek Shaver Lake

Arrowbear Lake Arrowhead Big Pine Bishop

Arrowhead Highlands Arrowhead Big Pines Playground Victorville

Arrowhead View Arrowhead Big Tujunga Canyon Monrovia

Artesia Long Beach Bishop Bishop

Ash Mountain San Joaquin Valley Bishop Creek Bishop

Atolia Ridgecrest Bixby Knolls Long Beach

Atwood Fullerton Bloomington Foothill

Auberry Shaver Lake Blue Cut Foothill

Avalon Catalina Blue Jay Arrowhead

Azusa Covina Blythe Blythe

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Bodfish Kernville Casitas Springs Ventura

Bodie Bishop Castaic Valencia

Boron Ridgecrest Catalina Long Beach

Bouquet Canyon Valencia Cathedral City Palm Springs

Box Canyon Thousand Oaks Cedar Glen Arrowhead

Bradbury Monrovia Cedar Pine Arrowhead

Brea Fullerton Cedar Slope San Joaquin Valley

Bridgeport Mammoth Cedarpines Park Arrowhead

Bryman Victorville Cerritos Long Beach

Bryn Mawr Redlands Chalfant Bishop

Buena Park Fullerton Chambless Yucca Valley

Burnt Mill Canyon Arrowhead Chapman Woods Monrovia

Burnt Mill Heights Arrowhead Charter Oak Covina

Burtons Camp Antelope Valley Chatsworth Thousand Oaks

Cabazon Palm Springs Cherry Valley Redlands

Cadiz Yucca Valley Chilao Monrovia

Cadiz Summit Yucca Valley China Lake Ridgecrest

Cajon Foothill Chino Ontario

Calabasas Thousand Oaks Chino Hills Ontario

Calico Barstow Cima Barstow

Caliente Antelope Valley City Terrace Montebello

Caliente Kernville Claremont Covina

California City Ridgecrest Claremont Ontario

California Hot Springs Kernville Colton Redlands

California Hot Springs San Joaquin Valley Commerce Compton

Calimesa Redlands Compton Compton

Camarillo Thousand Oaks Conejo Valley Thousand Oaks

Camarillo Ventura Convict Lake Bishop

Camarillo Heights Ventura Corcoran San Joaquin Valley

Camp Angelus Redlands Cornell Thousand Oaks

Camp Nelson San Joaquin Valley Corona Ontario

Camp Sabrina Bishop Corona Del Mar Huntington Beach

Canoga Park Thousand Oaks Coronita Ontario

Cantil Ridgecrest Coso Ridgecrest

Canyon Country Valencia Costa Mesa Huntington Beach

Canyon Lake Wildomar Coto de Caza Saddleback

Carbon Canyon North Orange Country Cotton Center San Joaquin Valley

Carbon Canyon Ontario Covina Covina

Carpinteria Santa Barbara Covina Monrovia

Carson Compton Cowan Heights Santa Ana

Casa Diablo Hot Springs Bishop Crest Park Arrowhead

Table 1–2: Service Center Planning Directory (Sheet 2 of 11)

City Service Center City Service Center

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Crestline Arrowhead El Cerrito Ontario

Crestmore Foothill El Mirage Victorville

Crestview Bishop El Modena Santa Ana

Crowley Lake Bishop El Monte Montebello

Cucamonga Ontario El Porto South Bay

Cudahy Compton El Rio Ventura

Culver City Santa Monica El Segundo South Bay

Cuyama Valley Antelope Valley El Toro Saddleback

Cypress Fullerton Elizabeth Lake Ranch Club Antelope Valley

Daggett Barstow Ellwood Santa Barbara

Danby Yucca Valley Elsinore Wildomar

Death Valley Junction Ridgecrest Escondido Canyon Valencia

Deer Lodge Park Arrowhead Essex Yucca Valley

Del Rosa Redlands Etiwanda Foothill

Del Sur Antelope Valley Exeter San Joaquin Valley

Delano San Joaquin Valley Fallbrook Wildomar

Desert Center Blythe Fallsvale Redlands

Desert Hot Springs Palm Springs Farmersville San Jacinto Valley

Desert Lake Ridgecrest Fawnskin Victorville

Desert Springs Victorville Fenner Yucca Valley

Devore Foothill Fillmore Ventura

Diamond Bar Covina Firestone Park Compton

Dinkey Creek Shaver Lake Flintridge Monrovia

Dos Palmas Palm Springs Florence Compton

Downey Whittier Fontana Foothill

Doyle Springs San Joaquin Valley Forest Home Redlands

Duarte Monrovia Forest Park Valencia

Ducor San Joaquin Valley Fort Irwin Barstow

Dunmovin Ridgecrest Foster Park Ventura

Earlimart San Joaquin Valley Fountain Springs San Joaquin Valley

East Highlands Redlands Fountain Valley Huntington Beach

East Los Angeles Montebello Frazier Park Antelope Valley

East Pasadena Monrovia Fremont Valley Ridgecrest

East San Gabriel Montebello Fresno Shaver Lake

East Tustin Santa Ana Friendly Hills Whittier

East Whittier Whittier Friendly Valley Valencia

Eastvale Ontario Fullerton Fullerton

Eden Hot Springs Menifee Furnace Creek Ridgecrest

Edgemont Menifee Garden City Acres Ventura

Edwards Antelope Valley Garden Grove Santa Ana

Edwards Ridgecrest Gardena South Bay

Table 1–2: Service Center Planning Directory (Sheet 3 of 11)

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Garlock Ridgecrest Havasu Palms Blythe

Garnet Palm Springs Havilah Kernville

Gaviota Santa Barbara Hawaiian Gardens Long Beach

Giant Forest San Joaquin Valley Hawes Barstow

Gilman Hot Springs Menifee Hawthorne South Bay

Glen Avon Foothill Hector Barstow

Glen Helen Ranch Foothill Helendale Victorville

Glen Ivy Wildomar Hemet Menifee

Glendora Covina Hermosa Beach South Bay

Glenville Kernville Hesperia Victorville

Goffs Yucca Valley Hidden Hills Thousand Oaks

Golden Hills Antelope Valley Hidden Valley Antelope Valley

Goldstone Barstow Hidden Valley Thousand Oaks

Goleta Santa Barbara Highgrove Redlands

Goodhope San Jacinto Valley Highland Redlands

Gorman Antelope Valley Hinkley Barstow

Goshen San Joaquin Valley Hodge Barstow

Grand Terrace Redlands Hollydale Compton

Grandview Barstow Hollywood by the Sea Ventura

Grandview Palos Verdes South Bay Hollywood Riviera South Bay

Grangeville San Joaquin Valley Home Gardens Ontario

Granite Station Kernville Homeland Menifee

Grass Valley Arrowhead Homestead Area Antelope Valley

Green Acres Menifee Honby Valencia

Green Valley Antelope Valley Hope Ranch Santa Barbara

Green Valley Lake Arrowhead Horseshoe Bend Arrowhead

Greenhorn Kernville Hueneme Bay Ventura

Guasti Ontario Hungry Valley Antelope Valley

Guyama Thousand Oaks Huntington Beach Huntington Beach

Hacienda Heights Covina Huntington Harbour Huntington Beach

Hacienda Heights Whittier Huntington Lake Shaver Lake

Hammil Bishop Huntington Park Compton

Hanford San Joaquin Valley Idyllwild Menifee

Harbor City Compton Indian Hills Ontario

Harbor City South Bay Indian Wells Palms Springs

Harvard Barstow Industry Covina

Haskell Canyon Valencia Industry Montebello

Hasley Canyon Valencia Industry Whittier

Havasu Heights Blythe Inglewood South Bay

Havasu Lake Blythe Inyokern Kernville

Havasu Landing Blythe Inyokern Ridgecrest

Table 1–2: Service Center Planning Directory (Sheet 4 of 11)

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Irvine Saddleback Lake Arrowhead Arrowhead

Irwindale Covina Lake Elizabeth Ranch Club Antelope Valley

Irwindale Monrovia Lake Elsinore Wildomar

Isla Vista Santa Barbara Lake Forest Saddleback

Ivanhoe San Joaquin Valley Lake Havasu Blythe

Ivanpah Barstow Lake Hughes Antelope Valley

Jack Ranch San Joaquin Valley Lake Isabella Kernville

Jasmine San Joaquin Valley Lake Lindero Thousand Oaks

Johannesburg Ridgecrest Lake Los Angeles Antelope Valley

Johnson Valley Yucca Valley Lake Mathews Menifee

Johnsondale Kernville Lake of the Woods Valencia

Joshua Tree Yucca Valley Lake Sherwood Thousand Oaks

June Lake Mammoth Lake Silverwood Arrowhead

Kagel Canyon Valencia Lake Tamarisk Blythe

Kaweah San Joaquin Valley Lakebrook Park Arrowhead

Keeler Bishop Lakeland Village Wildomar

Keen Camp Menifee Lakeshore Shaver Lake

Keene Antelope Valley Lakeview Menifee

Kelso Barstow Lakewood Long Beach

Kelso Yucca Valley Lancaster Antelope Valley

Kern River Kernville Landers Yucca Valley

Kernvale Kernville Larchmont Arrowhead

Kernville Kernville Las Posas Estate Ventura

Klondike Barstow Lawndale South Bay

Kramer Ridgecrest Lebec Antelope Valley

La Canada Monrovia Lee Vining Mammoth

La Conchita Ventura Leisure World Huntington Beach

La Crescenta Monrovia Leliter Ridgecrest

La Habra Whittier Lemon Cove San Joaquin Valley

La Habra Fullerton Lemon Heights Santa Ana

La Habra Heights Fullerton Lemoore San Joaquin Valley

La Mirada Whittier Lennox South Bay

La Mirada Fullerton Lenwood Barstow

La Palma Fullerton Leona Valley Antelope Valley

La Puente Covina Lido Isle Huntington Beach

La Sierra Ontario Limoneira Ventura

La Verne Covina Lindcove San Joaquin Valley

Ladera Heights South Bay Lindsay San Joaquin Valley

Laguna Beach Saddleback Linnell San Joaquin Valley

Laguna Hills Saddleback Little Lake Ridgecrest

Laguna Niguel Saddleback Little Tujunga Valencia

Table 1–2: Service Center Planning Directory (Sheet 5 of 11)

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Littlerock Antelope Valley Meadowbrook Arrowhead

Live Oaks Acres Ventura Meadowbrook Heights Menifee

Llano Antelope Valley Meiners Oaks Ventura

Menifee Menifee

Llano Victorville Mentone Redlands

Lockwood Valley Antelope Valley Mesa Verde Blythe

Loma Linda Redlands Mesquite Barstow

Lomita South Bay Midway Barstow

Lone Pine Bishop Midway City Huntington Beach

Long Beach Compton Mint Canyon Valencia

Long Beach Long Beach Mira Loma Foothill

Lopez Canyon Valencia Mira Monte Ventura

Los Alamitos Long Beach Miraleste South Bay

Los Angeles Compton Mission Viejo Saddleback

Los Angeles Santa Monica Modjeska Saddleback

Los Angeles South Bay Mojave Tehachapi

Los Cerritos Long Beach Mojave Ridgecrest

Los Nietos Whittier Monolith Antelope Valley

Los Serranos Ontario Monrovia Monrovia

Lucerne Valley Yucca Valley Montalvo Ventura

Lucerne Valley Victorville Montclair Ontario

Ludlow Barstow Monte Nido Thousand Oaks

Luring Pines Arrowhead Montebello Montebello

Lynn Ranch Thousand Oaks Montebello Compton

Lynwood Compton Montecito Santa Barbara

Lytle Creek Foothill Monterey Park Montebello

Malibu Beach Thousand Oaks Montrose Monrovia

Malibu Lake Thousand Oaks Moorpark Thousand Oaks

Malibu West Thousand Oaks Moorpark Ventura

Mammoth Lakes Mammoth Moorpark Home Acres Thousand Oaks

Mammoth Mountain Mammoth Moreno Menifee

Mandalay Bay Ventura Morningside Park South Bay

Manhattan Beach South Bay Morongo Indian Reservation Palm Springs

Manix Barstow Morongo Valley Yucca Valley

March Air Force Base Menifee Mount Baldy Foothill

Maricopa Ventura Montclair Foothill

Marina Del Rey Santa Monica Mount Wilson Monrovia

Maywood Compton Mountain Center Menifee

McFarland San Joaquin Valley Mountain Pass Barstow

McGee Creek Bishop Mountain Springs Yucca Valley

McMillan Manor Ventura Mupu Ventura

Table 1–2: Service Center Planning Directory (Sheet 6 of 11)

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Mead Valley Menifee Muroc Ridgecrest

Murrieta Wildomar Oxnard Shores Ventura

Murrieta Hot Springs Wildomar Pacoima Canyon Valencia

Muscoy Redlands Pahrump Barstow

Naples Long Beach Painted Cave Santa Barbara

Narod Ontario Painted Hills Palm Springs

Needles Yucca Valley Palm Desert Palm Springs

Needles Landing Blythe Palm Desert Country Club Palm Springs

Neighbors Blythe Palm Springs Palm Springs

Newberry Springs Barstow Palm Springs Oasis Palm Springs

Newbury Park Thousand Oaks Palm Wells Yucca Valley

Newhall Valencia Palmdale Antelope Valley

Newport Beach Huntington Beach Palo Verde Blythe

Newport Coast Huntington Beach Palos Verdes Estates South Bay

Nipton Barstow Palos Verdes Pennisula South Bay

Norco Ontario Panorama Heights Kernville

North Edwards Ridgecrest Panorama Park Kernville

North Fork Saddle Valencia Paradise Camp Santa Barbara

North Long Beach Long Beach Paramount Compton

North Oaks Valencia Park El Moreno Menifee

North Palm Springs Palm Springs Parker Dam Blythe

North Ventura Ventura Pasadena Monrovia

Norton Air Force Base Redlands Patton Redlands

Norwalk Whittier Pearblossom Antelope Valley

Nuevo Menifee Pearsonville Ridgecrest

Nyeland Acres Ventura Pechanga Indian Reservation Wildomar

Oak Glen Redlands Pedley Foothill

Oak Hills Victorville Pelissier Village Whittier

Oak View Ventura Perris Ontario

Oakbrook Village Thousand Oaks Perris Menifee

Ocean Park Santa Monica Phelan Victorville

Ojai Ventura Pico Canyon Valencia

Olancha Ridgecrest Pico Rivera Whittier

Olive Santa Ana Pico Rivera Montebello

Ontario Ontario Pine Cove Menifee

Ontario Foothill Pine Flat San Joaquin Valley

Onyx Kernville Pine Mountain Club Valencia

Orange Santa Ana Pinon Hills Victorville

Orange Park Acres Santa Ana Pinon Pines Valencia

Oro Grande Victorville Pioneer Point Ridgecrest

Oxnard Ventura Pioneertown Yucca Valley

Table 1–2: Service Center Planning Directory (Sheet 7 of 11)

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Oxnard Beaches Ventura Piru Valencia

Pixley San Joaquin Valley Ridgecrest Ridgecrest

Placentia Fullerton Rimforest Arrowhead

Placerita Canyon Valencia Ripley Blythe

Plainview San Joaquin Valley Riverside Redlands

Plant 42 Antelope Valley Riverside Ontario

Point Mugu Ventura Riverside Menifee

Point of Rocks Ridgecrest Roads End Blythe

Pomona Covina Rolling Hills South Bay

Pomona Ontario Rolling Hills Estates South Bay

Pond San Joaquin Valley Romoland Menifee

Ponderosa San Joaquin Valley Rosamond Antelope Valley

Poplar San Joaquin Valley Rosemead Montebello

Poppet Flats Menifee Rossmoor Long Beach

Port Hueneme Ventura Rowco Arrowhead

Portal Heights Antelope Valley Rowland Heights Covina

Porterville San Joaquin Valley Rubidoux Foothill

Portugese Bend South Bay Running Springs Arrowhead

Posey Kernville Ryan Ridgecrest

Poso Park Kernville Sage Wildomar

Potrero Heights Montebello Saltdale Ridgecrest

Quail Valley Menifee Saltus Yucca Valley

Quartz Hill Antelope Valley San Bernardino Redlands

Rainbow Canyon Wildomar San Dimas Covina

Rancho California Wildomar San Dimas Canyon Covina

Rancho Cucamonga Foothill San Fernando Valencia

Rancho Cucamonga Ontario San Francisquito Canyon Valencia

Rancho Mirage Palm Springs San Gabriel Monrovia

Rancho Palos Verdes South Bay San Gabriel Montebello

Rancho Santa Margarita Saddleback San Jacinto Menifee

Rancho Sespe Ventura San Manuel Indian Reservation Redlands

Randsburg Ridgecrest San Marino Monrovia

Reche Canyon Redlands San Moritz Arrowhead

Red Hill Santa Ana San Pedro South Bay

Red Mountain Wildomar San Sevaine Peak Foothill

Red Mountain Ridgecrest Sand Canyon Valencia

Red Rover Canyon Valencia Santa Ana Santa Ana

Redlands Redlands Santa Ana Saddleback

Redondo Beach South Bay Santa Barbara Santa Barbara

Refugio Santa Barbara Santa Clarita Valencia

Rialto Foothill Santa Fe Springs Whittier

Table 1–2: Service Center Planning Directory (Sheet 8 of 11)

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Richgrove San Joaquin Valley Santa Monica Santa Monica

Santa Paula Ventura South Pasadena Monrovia

Santa Rosa Valley Ventura South Whittier Whittier

Santa Susana Thousand Oaks Springville San Joaquin Valley

Saticoy Ventura Stallion Springs Antelope Valley

Saugus Valencia Stanton Fullerton

Scotland Foothill Stovepipe Wells Ridgecrest

Scotty’s Castle Ridgecrest Strathmore San Joaquin Valley

Seal Beach Huntington Beach Strawberry Flats Arrowhead

Seal Beach Long Beach Sugarload Kernville

Searles Ridgecrest Sulphur Mtn. Springs Ventura

Sedco Wildomar Summerland Santa Barbara

Seeley Flat Arrowhead Summit Arrowhead

Seminole Hot Springs Thousand Oaks Summit Victorville

Sequoia Crest San Joaquin Valley Summit Valley Victorville

Sequoia National Park San Joaquin Valley Sun City Menifee

Seven Oaks Redlands Sun Village Antelope Valley

Shaver Lake Shaver Lake Sungold Whittier

Shosone Barstow Sunland Monrovia

Siberia Barstow Sunny Slope Foothill

Sierra Madre Monrovia Sunnymead Menifee

Signal Hill Long Beach Sunnyslope Monrovia

Silver Strand Ventura Sunset Beach Huntington Beach

Silverado Saddleback Sunset Hills Thousand Oaks

Simi Valley Thousand Oaks Sunset Park Arrowhead

Sky Forest Arrowhead Surfside Huntington Beach

Skyland Arrowhead Susana Knolls Thousand Oaks

Sleepy Valley Valencia Switzerland Arrowhead

Smiley Park Arrowhead Tajiguas Santa Barbara

Snow Valley Arrowhead Tecopa Barstow

Snowcreek Palm Springs Tehachapi Tehachapi

South San Gabriel Montebello Temecula Wildomar

Soboba Hot Springs Menifee Temescal Canyon Menifee

Soledad Canyon Valencia Temple City Monrovia

Solemint Valencia Terminal Island Long Beach

Solromar Thousand Oaks Terra Bella San Joaquin Valley

Somis Thousand Oaks Teviston San Joaquin Valley

Somis Ventura Thousand Oaks Thousand Oaks

South El Monte Montebello Three Points Antelope Valley

South Gate Compton Three Rivers San Joaquin Valley

South Glen Avon Ontario Tick Canyon Valencia

Table 1–2: Service Center Planning Directory (Sheet 9 of 11)

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South Laguna Saddleback Tipton San Joaquin Valley

Toms Place Bishop Walnut Park Compton

Tonyvile San Joaquin Valley Walteria South Bay

Topanga Canyon Thousand Oaks Warm Springs Canyon Valencia

Torrance Compton Warner Tract Wildomar

Torrance South Bay Waterman Canyon Redlands

Trabuco Saddleback Waukena San Joaquin Valley

Trona Ridgecrest Weldon Kernville

Tulare San Joaquin Valley West Covina Covina

Tule Indian Reservation San Joaquin Valley West Hollywood Santa Monica

Tustin Santa Ana West Palm Springs Palm Springs

Twentynine Palms Yucca Valley West Riverside Ontario

Twin Lakes Thousand Oaks Westend Ridgecrest

Twin Lakes Bridgeport Bishop Westlake Village Thousand Oaks

Twin Lakes Mammoth Bishop Westminster Huntington Beach

Twin Peaks Arrowhead Wheelers Hot Springs Ventura

U.S. Marine Corps Barstow Whitewater Palm Springs

Universal City Valencia Whittier Montebello

Upland Ontario Whittier Whittier

Val Verde Menifee Whittier Fullerton

Val Verde Park Valencia Whittwood Whittier

Valencia Valencia Wildomar Wildomar

Valinda Covina Willow Springs Antelope Valley

Valle Vista Menifee Willowbrook Compton

Valley of Enchantment Arrowhead Wilmington South Bay

Valleyview Park Arrowhead Wilmington Long Beach

Valyermo Antelope Valley Winchester Menifee

Vasquez Canyon Valencia Windsor Hills South Bay

Venice Santa Monica Wofford Heights Kernville

Ventucopa Ventura Woodcrest Menifee

Ventura Santa Barbara Woodlake San Joaquin Valley

Ventura Ventura Woodland Hills Thousand Oaks

Verdemont Redlands Woodville San Joaquin Valley

Veterans Hospital Santa Monica Woody San Joaquin Valley

Victorville Victorville Wrightwood Victorville

View Park South Bay Yates Well Barstow

Villa Park Santa Ana Yermo Barstow

Virginia Colony Thousand Oaks Yettem San Joaquin Valley

Visalia San Joaquin Valley Yorba Linda Fullerton

Wagon Wheel Ventura Walnut Park Compton

Walker Basin Kernville Walteria South Bay

Table 1–2: Service Center Planning Directory (Sheet 10 of 11)

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3.0 Energy Management Programs

Southern California Edison offers several energy management programs tailored to assist residential, commercial, industrial, and agricultural customers in minimizing energy costs. For specific information regarding these programs, please call (800) 990-7788 or (800) 655-4555.

Information is also available on our Web site: http://www.sce.com/.

3.1 Residential

Customer Assistance Programs: Edison’s Customer Assistance Programs (CAPs) are designed to help low-income customers conserve energy and control their electricity costs.

Renters and homeowners may qualify. To be eligible, Edison customers must meet specific income guidelines established by the CPUC. For more information, please call

(800) 736-4777.

3.2 Commercial/Industrial/Agricultural

New Construction: Edison’s New Construction program is targeted to builders, developers, contractors, engineers, and architects, and promotes the benefits of designing energy efficiency into projects. Incentives may be offered for energy-efficient space conditioning equipment, daylighting controls, building envelopes, and control systems which exceed state-mandated standards in California.

4.0 Dig Alert

State of California Government Code 4216 mandates that anyone doing excavation work shall call at least two working days prior to commencement of any excavation.1/ If you are performing this type of work in California or Nevada, please call Underground Service Alert at (811) or

(800) 227-2600.

5.0 Plug-In Electric Vehicles

Southern California Edison offers special electric rates and information to purchasers and operators of new Plug-In Electric Vehicles (PEVs). Electric Vehicles are defined as vehicles powered by electric motors which are licensed for street use. The purpose of this section is to assist SCE’s customers to understand the role and requirements regarding how residential and commercial customers can become PEV ready.

5.1 Customer’s Responsibility

Prior to discussing whether to elect an EV rate, customers will need to consult with a licensed electrician to determine whether their panel is appropriately sized to handle the increased load. The customer shall notify SCE of the increase of load. This is to allow the Company to assess its electrical infrastructure serving the location and determine if upgrades are necessary. It is the responsibility of the customer to ensure that the electrical

Walnut Covina Warm Springs Canyon Valencia

Yosemite Bishop Yucca Valley Yucca Valley

Yucaipa Redlands Zuma Beach Thousand Oaks

Yucca Valley Victorville

1/ This is to prevent damage to underground equipment.

Table 1–2: Service Center Planning Directory (Sheet 11 of 11)

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wiring and all required PEV equipment is installed according to the appropriate codes, regulations, SCE’s Electric Service Requirements and properly permitted by the local authority having jurisdiction.

5.2 Panel/Meter Options

If the customer elects to keep their existing Residential D rate, they may not need to replace their existing panel to charge their PEV at their residence. The customer will have two panel choices:

•1 Use their existing panel because adequate power capacity exists.

•2 Upgrade their panel to provide additional power capacity.

Customers should contact the local Service Planning Office for details, or contact SCE’s EV information hotline at (800) 366-7766 for assistance.

For information about the different rate choices, please access SCE’s website at http://www.sce.com/ and access the sections about rates in the SCE Tariff Books under Regulatory Information.

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Below are two options for SCE overhead fed service panels. The appropriate option will depend on the customer’s panel choice.

Figure 1–1: Overhead Service

M M

Option 1 Option 2

Existing Home Panel

Residential

New Upgraded Home Panel

Existing Home kWh Meter

Existing Home kWh Meter

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Below are two options for SCE underground fed service panels. The appropriate option will depend on the customer’s panel choice.

Figure 1–2: Underground Service

M M

Option 1 Option 2

Existing Home Panel

Residential

New Upgraded Home Panel

Existing Home kWh Meter

Existing Home kWh Meter

UG Service Entrance UG Service Entrance

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6.0 Voltage Standards

6.1 Standard Distribution Voltages

The Company will supply the following standard nominal distribution voltages to new service installations. New service installations that utilize delta-wye grounded transformers are required to bring the fourth wire to the service panel.

• Single Phase — 120 V; 120/240 V; 240 V; 240/480 V; and, depending on the location, 120/208 V; 2400 V; 12000 V; or 16500 V.

• Three Phase — 120/208 V; 240 V; 277/480-wye; 2400 V; 4160 V; and, depending on the location, 4800 V; 12000 V; 14400/24900 V; 13800 V; 16500 V; or 33000 V.

Exceptions:

A. 120/240 V four-wire delta will only be supplied under special conditions. Contact the Company local Service Planning Office for details.

B. Existing 480 V delta service installations contemplating an increase in load may continue to be served three-wire as long as the customer’s service equipment has sufficient capacity to carry the additional load. If the existing transformer bank must be changed to service the new load, the neutral shall not be grounded or run with the service. If the customer must change their service equipment, service shall be provided at 277/480 V, wye connection.

If an existing transformer bank has sufficient capacity and a new customer desires service, they may be provided a 480 V delta service.

6.2 Customer-Service Voltages

Under all normal load conditions, distribution circuits will be operated so as to maintain secondary service voltage levels at the service point within the voltage ranges specified in Table 1–3.

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6.3 Customer-Utilization Voltages

All customer-owned utilization equipment must be designed and rated in accordance with the utilization voltages specified by the American National Standard Institute (ANSI) C84.1, if customer equipment is to give fully satisfactory performance:

Minimum utilization voltages from ANSI C84.1 are shown for customer information only as the Company has no control over voltage drop in customer’s wiring.

7.0 Customer Transformation and Harmonic Interference

In order to prevent third harmonic interference, the following requirements will apply to the delivery of all (and only) three-phase high-, or low-voltage service to be transformed by the customer to different values.

Table 1–3: Customer-Service Voltages

Nominal Two-Wire and Multi-Wire Service Voltage

Minimum Voltages to All Services

Maximum Service Voltages on Residential and Commercial Distribution Circuits

Maximum Service Voltages on Agricultural and Industrial

Distribution Circuits

120 114 120 126

208 197 208 218

240 228 240 252

277 263 277 291

480 456 480 504

Note(s):

1. Exceptions to Voltage Limits. Voltage may be outside the limits specified when the variations are any of the following:

• Result from the temporary action of the elements.

• Are infrequent momentary fluctuations of a short duration.

• Result from service interruptions.

• Result from temporary separation of parts of the system from the main system.

• Are from causes beyond the control of the Company.

Table 1–4: Customer Utilization Voltages

Nominal Utilization Voltage

Minimum Utilization Voltage

Maximum Utilization Voltage

120 110 125

208 191 216

240 220 250

277 254 289

480 440 500

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7.1 High-Voltage Service

Where the customer desires to take three-phase, high-voltage service delivery and transform the service delivery voltage to 120/208 V (wye) or 277/480 V (wye), or to install any other transformation that involves the use of a wye connection to supply the desired utilization voltage, the Company will supply, at its option, either 4,160 V; 4800 V; 7200 V;

12000 V; 16500 V; or 33000 V.

Where service to the customer is delivered directly from the Company’s 2400 V; 4160 V;

4800 V; 7200 V; 12000 V; 16500 V; or 33000 V circuits, single-phase or three-phase transformers having the same primary voltage rating as the service delivery voltage, with their primary windings connected in delta, are acceptable. In the event that the Company converts its primary distribution system from 2.4 kV delta to 4.16 kV (wye), the Company will supply the material and labor to convert an existing transformer installation to comply with this requirement.

Where service is delivered to the customer from the Company’s bank of delta-wye, wye-delta, or delta-delta connected transformers, located on the customer’s premises, the Company has no requirements for wye or delta connection of transformers installed by the customer.

7.2 Low-Voltage Service

Where three-phase service is delivered to the customer at 240 V and the customer desires to transform to a different voltage, the customer may only connect a delta primary transformer to the Company service.

Where an established three-phase, 480 V combination light-and-power service is delivered to the customer, the customer may establish a three-phase, four-wire, 277/480 V grounded neutral system on the load side of their main disconnect. An artificial neutral would be derived from an approved single winding type grounding transformer furnished and installed by the customer. This arrangement will be acceptable to the Company only in cases where the Company’s transformers are located on the customer’s premises and supply one service at three-phase, three-wire, 480 V exclusively.

8.0 Agricultural Power Service — Three-Phase, 240 V and 277/480 V

Three-phase, 240 V and 277/480 V agricultural service will be supplied by the normal method whereby the customer supplies complete service facilities. Exception: Agricultural customers relocating serviceable three-phase, 480 V, three-wire service equipment, may be provided a three-wire service.

8.1 100 A Service

Where the nameplate horsepower rating of any motor does not exceed 30 hp, 240 V or 60 hp, 277/480 V, a factory-bussed safety-socket box with a 100 A rating shall be installed.

The meter socket for 240 V service will be 5- or 7-clip, depending on the grounding of the serving transformer bank. The meter socket for 277/480 V service will be 7 clip. Consult your local Service Planning Office before purchasing or installing service equipment.

The maximum wire size or current-carrying capacity of the conductors installed in the customer’s service raceway shall not exceed that of No. 1 wire, and the conduit size of such raceway shall not exceed 1-1/2 inches. The capacity of the customer’s service switch is not limited under these conditions.

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The total actual continuous operating load current, excluding motor starting current, shall not exceed 80 A.

8.2 200 A Service

Where the nameplate horsepower rating of any motor does not exceed 60 hp, 240 V or 125 hp, 277/480 V, a factory-bussed, safety-socket box with a 200 A rating shall be installed.

The meter socket for 240 V service will be 5- or 7-clip, depending on the grounding of the serving transformer bank. The meter socket for 277/480 V service will be 7 clip. Consult your local Service Planning Office before purchasing or installing service equipment.

The maximum wire size or current-carrying capacity of the conductors installed in the customer’s service raceway shall not exceed that of No. 3/0 wire and the conduit size of any such raceway shall not exceed two inches. The capacity of the customer’s service switch is not limited under these conditions.

The total actual continuous operating load current, excluding motor-starting current, shall not exceed 160 A.

8.3 Above 200 A Service

If the total actual operating load current, excluding motor-starting current, for any reason exceeds 160 A, either at the time of installation or thereafter, the customer shall at such times have complete facilities installed (at their expense) consisting of an approved instrument transformer box or an approved switchboard. See ESR–5 and ESR–6.

9.0 Overhead Service

9.1 To Customer’s Service and Meter Pole

See ESR–2.

9.2 To Customer’s Building or Structure

The Company will install overhead service drops to a building or structure adequate to support the service and meter equipment. This type of service will not be rendered to wind machine towers or columns, or similar equipment subject to excessive vibration. For these types of installations, the meter box shall be installed on a separate vibration-free structure.

The service conduit, if attached to the structure, shall descend into the concrete base and rise up into the meter structure. See ESR–2 for additional Overhead Service Information.

10.0 Underground Service

10.1 To Customer’s Service and Meter Post

See ESR–3.

10.2 To Customer’s Building or Structure

See ESR–3.

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11.0 Service or Meter Switch — General Requirements

A disconnecting means with overcurrent protection is required at the meter location. In some cases, it is a single switch or circuit breaker. In other cases, where permitted by the Company and by inspection authorities, it may be a group of switches or circuit breakers, per National Electrical Code (NEC) 230–71.

A service or meter switch, as defined above, shall be furnished and installed by the customer in every service proposed to be supplied with electric energy from the Company’s system as specified in these requirements.

12.0 Customer Generators

Customer generators shall not be switched or operated in parallel with the SCE system without Company approval. Paralleling shall be in accordance with requirements of the applicable tariff schedules or special parallel generation agreements. Customers and consultants should contact the local SCE Service Planning Office for details.

When a customer has a standby generator to supply all of their load during an SCE system outage, the generator shall be connected to the load by a double-throw switch or automatic relays and switches which will isolate the load from the SCE system before the generator is connected to the load. When the SCE service is re-energized, the generator will then be isolated from the load before the load is reconnected to the SCE system.

RULE 21 NET GENERATION OUTPUT METERING

Rule 21 output metering is required for most customer-generator installations where the generator is installed and intended to operate in parallel with the SCE Distribution System for extended periods of time. Net Generation Output (NGO) metering is required to provide revenue-grade metering data for “non-bypassable charges” to the various categories of customers who serve all or a portion of their electrical energy needs from a source other than SCE. Net Generation Output metering shall be located in a customer’s circuitry at a location that will facilitate measuring “net” generator output. Customer load circuits cannot be connected between the generator and the NGO metering. Generator auxiliary loads (loads necessary for generator operation only) can be connected between the generator and the NGO metering. Net Generation Output metering may also be used by SCE for the other reasons permitted under Rule 21.f. Net Generation Output metering panels, metering switchboards, and medium-voltage metering sections shall be fabricated in a manner as specified in SCE’s Electrical Service Requirements. Net Generation Output Metering supplied by SCE shall be revenue grade and installed in equipment fabricated to the specific requirements found within this manual.

Written requests for information about Rule 21 may be mailed to SCE at the following address:

Southern California Edison Company Attention: Distributed Generation Administrator 2244 Walnut Grove…