Page 70 - Puret Sound Energy Hand Book 1218

Chapter 7

Trenching and It is the customer’s responsibility to provide the trenching needed to connect to a
excavation power stubout (shown in Figure 34). The cable you provide is to be sized according
requirements to the NEC and have a minimum 24 inches of backfill coverage.
NOTE: A 4-foot-square excavation is required at the stubout to provide working
room for our personnel to splice your cable to ours.
If the connection point to PSE facilities is a handhole, pedestal, or transformer;
trench up to the nearest side and leave your wires exposed. If you discover any other
conductors while digging your trench, please leave them covered.
Remember to order underground utility locate service by contacting the 811 “Call
Before You Dig” hotline two business days before digging.
NOTE: Any trenching within 24 inches of existing underground facilities must be
done by hand.

Figure 34 Trenching requirements for power stubout

CUSTOMER POST, METER
BASE, AND PANEL

6' MAX
5' PREFERRED
4' MIN
PSE STUBOUT
STUBOUT CONDUIT
COVERING THE
TEMPORARY
CONNECTION
26"
CUSTOMER OWNED
TEMPORARY SERVICE
CONDUCTORS

4'
4'
PSE CONDUCTOR

NOTE: 4' x 4' work pit is required to allow working room for the tools necessary
to connect temporary service.

Electric Service Handbook 2017 — Single-Family Residential Projects 61