Electrical Installation and Standards

Power Quality Engineers

If further investigation is needed, Hawaiian Electric has specialized power quality equipment and a group of trained Power Quality Engineers to gather and analyze data and provide recommendations and possible solutions to you. Please call (808) 543-4756.

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Manuals & Engineering Specifications

Hawaiian Electric works with many companies to provide the highest quality electrical service to our customers. This section of our website contains the manuals and specifications used by engineers, contractors, homeowners, developers and architects to ensure that standards and safety requirements are met in the installation of electrical service to our customers.

Installation Manual

Manuals Description
ESIM - 9th Edition (PDF) Electric Service Installation Manual - 9th Edition (Effective July 1, 2019)

Engineering Specifications

Specifications Description
CS7001-19 (PDF) Specification for Construction of UG Facilities
CS7003-36 (PDF) Specification for Construction of Electrical Facilities
CS9301-2 (PDF) Specification for Cast-In-Place Concrete Work
CS9401-5 (PDF) Specification for Design and Construction of Precast Manholes and Handholes
M0302-1 (PDF) Specification for Warning Tape for Underground Systems
M7001-6 (PDF) Specification for Plastic Conduits and Fittings Constructed with Virgin ABS and PVC Plastic

Engineering Standards

Standards Description
22-1012 (PDF) Standard for Typical Underground Residential Distribution Trenching Details
29-0005 (PDF) Standard for Riser Conduit Location at Base of Pole
*29-1001 (n02) (PDF) Standard for Secondary Riser Construction 0 - 750 Volts
30-1005 (n02) (PDF) Standard Conduit Application Guide for Underground Ducts and Structures
30-1006 (n02) (PDF) Standard Duct Line Design Guide for Underground Ducts and Structures
30-1015 (n02) (PDF) Standard for Typical Duct Encasement Details
30-1020 (PDF) Standard for Duct Roll Sections
30-1025 (PDF) Standard Conduit and Duct Sealing Details for Underground Ducts and Structures
30-1030 (PDF) Standard for Plastic Ducts, Special Installation Instructions
30-1035 (PDF) Standard for Plastic Ducts, Installation Details for Underground Structures
*30-2005 (PDF) Standard for 2' x 4' Precast Concrete Handhole
30-2006 (PDF) Standard for 24" x 36" Non-Concrete Service Box Installation
30-5000 (PDF) Standard for Location, Clearances & Protection Details for Padmounted Equipment
30-5001 (PDF) Standard for Single Phase Padmount Transformer Concrete Pad
30-5002 (PDF) Standard for Slope and Retaining Wall Requirements and Clearances
*30-5010 (PDF) Standard for Three Phase Padmount Transformer Concrete Pad, 500-750 KVA
For Maui County, please refer to Construction Details section for 75-750 KVA transformer
*30-5011 (PDF) Standard for Three Phase Deadfront Transformer Concrete Pad, 75 - 300 KVA
For Maui County, please refer to Construction Details section for 75-750 KVA transformer
*30-5015 (PDF) Standard Concrete Pad for 1000 - 2500 KVA Three Phase Padmounted Transformer
*30-5017 (PDF) Standard Concrete Pad for 1000 - 1500 KVA Three Phase Padmounted Transformer
30-5020 (PDF) Concrete Box Pad for 500 and 750 KVA 3 Phase Padmounted Tsfs Dual Feed Cast-In-Place Slab +
Precast Box UG Ducts & Structures
30-5021 (PDF) Concrete Box Pad for 1000-1500 KVA 3 Phase Padmounted Tsfs Dual Feed Cast - In Place Slab +
Precast Box UG Ducts & Structures
30-5022 (PDF) Concrete Box Pad for 1000-2500 KVA 3 Phase Pad Mounted Tsfs Radial Feed Cast-In-Place Slab +
Precast Box UG Ducts & Structures
30-5023 (PDF) Precast Concrete Box for Large 3 Phase Padmounted Tsfs (500KVA - 2500 KVA Tsfs)
UG Ducts & Structures
30-5024 (PDF) Concrete Box Pad for Large 3-Ph Tsfs Metal Plate, Angle Iron, Channel Detail
UG Ducts & Structures
30-5033 (PDF) Standard Concrete Pad for 15 kV PMH-3 Switch Enclosure
30-5052 (PDF) Standard Concrete Pad With Sidewalk for 15 kV PME-9 Auto Transformer Switchgear
30-5053 (PDF) Standard Concrete Pad Without for 15 kV PME-9 Auto Transformer Switchgear
30-5512 (PDF) Standard Concrete Pad for 25 kV PMH-3 Switch Enclosure
30-5710 (PDF) Standard Concrete Pad without Sidewalk for 15kV/25kV S&C Vista 422 Auto Transformer Switchgear
30-5711 (PDF) Standard Concrete Pad With Sidewalk for 15kV/25kV S&C Vista 422 Auto Transformer Switchgear
30-6005 (PDF) Standard for Removable Door Sill in Electrical Vaults
30-6030 (PDF) Transformer and Switchgear Vault Rooms UG Ducts and Structures


* = For Maui County, please confirm with our engineering department on actual final design details


Maui County Requirements, Specifications & Standards

Specifications & Standards Description
* Commercial Requirements (PDF) Electric Plan Requirements for Commercial Service
* Service Specification No. MTRPOLE.DGN (PDF) Permanent Meter Pole Specifications
* A3A (PDF) 75 - 750 KVA Transformer Pad Detail
* Simple Sketch (PDF) Simple Residential Sketch Example


* = For Maui County, please confirm with our engineering department on actual final design details


Hawaii Island Requirements & Specifications

Specifications Description
Commercial Requirements (PDF) Electric Plan Requirements for Commercial Service
Service Specification No. OHTEMP.DGN (PDF) Temporary Pole Specifications
Service Specification No. MTRPOLE.DGN (PDF) Temporary-Permanent Meter Pole Specifications
Service Specification - Exhibit A (PDF) Temporary-Permanent at the House Specifications
Service Specification No. PEDSTL (PDF) Meter Pedestal Specifications
Simple Sketch (PDF) Simple Residential Sketch Example

Hawaii Island Special Subdivision Project Provisions (SSPP)

Special Subdivision Project Provisions (SSPP) is a line extension program that assists customers in obtaining electrical service in subdivisions that were developed prior to the passage of the Hawaii County Ordinance No. 62 in 1967. 

Please complete the fillable Request for Power Availability or SSPP Information Form (PDF) using Internet Explorer and click submit.  If you are unable to access Internet Explorer, please complete the form, save it, and email it to PowerCheck@hawaiianelectric.com

If you have questions about the SSPP Program, please call (808) 969-0365.

SSPP Subdivisions Areas

*Please note that if a property is served by underground facilities at the road, the property does not qualify and is not eligible to be in the SSPP Program. For additional information, see Hawaiian Electric’s Rule 13-S (PDF)