Page 5 - Puret Sound Energy Hand Book 1218

Table of contents

Outbuildings .................................................................. 15
Service line installation responsibilities for outbuildings ............................ 15
Cost for service ............................................................... 15
Power quality, voltage flicker ...................................................... 15

Chapter 2
Permanent underground service

Steps to a successful underground service installation .................................. 16
Selecting a meter base/socket location ............................................. 17
Multiple metered services .................................................. 17
Service line trenches ............................................................ 17
Trench routing/clearances .................................................. 17
Trench and backfill requirements ............................................. 17
Customer-installed service line conduit ........................................ 17
Customer-installed service line conduit installation requirements ..................... 18
Continuous and discontinuous conduit systems ....................................... 18
When to choose continuous conduit .......................................... 19
When to choose discontinuous conduit ........................................ 20
Service entrance equipment ...................................................... 21
Installation requirements ................................................... 21
Service entrance conduit size ............................................... 21
Permanent underground service for manufactured homes, 0−200 A ....................... 24
Service equipment installation ............................................... 24
Meter base/socket requirements ............................................. 24
Remote metering (meter loop) for underground residential services ........................ 25
What is remote metering? .................................................. 25
Requirements for residential remote metering, 200 A or less ........................ 25
400 A and larger panels ................................................... 27
Remote services greater than 800 A .......................................... 27
Meter post and pedestal locations ............................................ 27

Chapter 3
Permanent overhead service

Steps to a successful overhead service installation ..................................... 28
Selecting a meter base/socket location ............................................. 29
Clearance requirements ......................................................... 29
Service line ground clearance ............................................... 29
Maintenance of your service around trees ...................................... 29
Attachment of service conductor ............................................. 29
Minimum clearances from structures, building openings, and gas meters .............. 30
Intermediate service pole ................................................... 31

Electric Service Handbook 2017 — Single-Family Residential Projects