Electric Service Installation Manual

1 Electric Service Installation Manual A guide for successful Installation of residential, commercial and industrial electrical services. ninth edition Electric Service Installation Manual ninth edition Hawaiian Electric , Inc. Hawai i Electric Light, Inc. Maui Electric , Ltd. Electric Service Installation Manual - ninth EDITIONii Hawaiian Electric , Inc. Hawai'i Electric Light, Inc. Maui Electric , Ltd. ninth edition First printing: July, 2019 2006 Hawaiian Electric Company, Inc. All rights reserved. Hawaiian Electric , Inc.

2 Hawai'i Electric Light, Inc. Maui Electric , Hawaiian Electric Maui Hawai'i Electric Light June 1, 2019 To Our Valued Customers, We are pleased to present the 9th edi tion of the Electric Service In stallation Manual (ESI M). The ESIM is a p ublication of Hawaiian Electric , Maui Electric , and Hawai'i Electric Light, an d provides you with standards, gui delines and requ irements for Electric se rvice and meter installations. The ch anges in thi s Manual are primarily clarifications and updates based on questions that we've received or discovered.

3 The effective date of thi s revision is Ju ly 1, 2019. This Manual is not intended to supersede or override Public Utilities Commission approved Company tariffs or federal, state or local laws, rules or regulations such as; the Nation al Electrical Code (NEC) , Electric Utility Service Equipment Requirements Committee (E USE RC), Occupational Safety and Health Administration (OSHA), Occupat ional Safety and He alth (DOSH). Where the ESIM conflicts with other agency rules, th e most stringent ruling shall take precedence.

4 A list of changes has been included before ch apt er 1 of the Manual . Thi s latest edition of the ESIM will again be available for download, free of charge, from our company's website or in a printed manu al format, priced at $10 per copy. To order a printed copy, please co ntact the Company at 543-7070(O'ahu), 871-2390(Maui), and 935-1171 (Hawai'i Isla nd). Sincerely, Anthony Director Director Dave Okamura Director Customer Installations Engineering Engineering Hawaiian Electric Maui Electric Hawai'i Electric Light Electric Service Installation Manual - ninth EDITIONH awaiian Electric , Inc.

5 Hawai'i Electric Light, Inc. Maui Electric , Hawaiian Electric , Inc. Hawai'i Electric Light, Inc. Maui Electric , Contents Chapter 1: General Requirements 1 About This 2 General .. 2 One-Call System .. 3 Tampering .. 3 Locked Areas .. 4 Easement Areas .. 4 Two or More Buildings on One 4 1 .8 Labeling of 4 A . Metering 4 B . Main Service 5 C . Emergency or Standby Generator 5 D.

6 Lettering and Label 5 General Service Requirements, 2 kV to 15 kV 5 A. Equipment Furnished by 6 B. 6 C. Switchgear 6 D. Instrument 6 E. Closed Transition Switching .. 7 Parallel Operation / Customer Generation .. 7 A. Types of Customer 7 B. Meter Socket Adapter (Meter Collar).. 8 Chapter 2: Overhead Service 11 General .. 12 Service 12 Service Drop Attachment .. 12 Location of Overhead 13 Methods of Attaching Service 14 A. Service Entrance Conductors.

7 15 Swimming Pool Clearances for Utility Service 18 Temporary Service .. 19 Chapter 3: Underground Service 21 General .. 22 Underground Service from Overhead .. 23 Electric Service Installation Manual - ninth EDITIONvi Hawaiian Electric , Inc. Hawai'i Electric Light, Inc. Maui Electric , Ltd. Underground Service from Underground .. 23 Trenching and 24 A. Marker 24 Underground Utility Duct Separation.

8 24 A. Underground Service Clearance for Swimming 24 Recessed Conduit in 24 Splice 25 Temporary 25 Transformer 28 A. Location .. 28 B. Customer 28 C. Clearances Around Padmount Transformers .. 28 3 .10 Switchvault Pads .. 29 A . Location .. 29 B . Customer 29 C . Clearances Around Switchvaults .. 30 Retaining Walls .. 30 Underground Construction .. 31 A. Handholes, Vaults and Manholes .. 31 Chapter 4: Metering (15 kV and Below) 33 34 General 34 A.

9 Company 34 B. Customer 34 C. Conditions for Energizing Services .. 35 General Requirements .. 36 A. Meter 36 B. Clearances Around Metering Equipment .. 38 C. Mounting Heights for Meters .. 40 D. Metering Equipment 41 E. Meter Socket / Splice Can Requirements .. 41 F. Meter and Main Service Disconnect Confgurations .. 42 G. Service Entrance Conductors .. 43 H . Labeling of Metering Equipment (Relocated to Chapter 1, Section ).. 44 I. Concrete Pads .. 44 J. Bollards .. 45 K. Replacing or Upgrading Service Entrance 46 L.

10 Separation of Unmetered Conductors .. 46 M. Sealing of Metering 47 Hawaiian Electric , Inc. Hawai'i Electric Light, Inc. Maui Electric , N. Switchboard and Switchgear General 47 O. 48 Electrical Rooms and Meter Closets .. 48 A. Access .. 48 B. Other Utility 52 C. Foreign Equipment .. 52 D. Illumination and Electrical 53 Freestanding Meter Enclosures, Pedestals, and Steel-Post 53 A. Freestanding Meter 53 B. Freestanding Meter 57 C.