Page 61 - Puret Sound Energy Hand Book 1218
P. 61
Chapter 5
Overhead • In addition to the meter base/socket requirements listed earlier in this chapter,
Class 320 meter bases/sockets for 400 A overhead services shall:
• Be rated for 120/240 V and 320 A continuous current.
• Contain four meter jaws and one connection point for the neutral conductor
(see Figure 31).
• Contain a Class 320 manual block bypass.
Figure 31 Typical arrangement of service conductors for overhead class 320 meter base/socket
SERVICE CONDUCTORS
TO WEATHERHEAD,
CUSTOMER PROVIDED
NOTE: METER BASE/
SOCKET MUST BE
GROUNDED PER NEC.
NOTE: LINE LUGS SHALL
BE TURNED 180˚ TO ALLOW
PROPER INSERTION OF
LINE LUG LINE LUG WIRE AND TO KEEP FROM
BLOCKING BYPASS AREA.
BYPASS STUDS BYPASS STUDS
LOAD LUG LOAD LUG
NEUTRAL BLOCK
CUSTOMER
WIRES
Outbuildings The metering requirements for 400 A services to outbuildings are the same as the
(overhead or metering requirements for 400 A services to single-family residential structures.
underground
service)
Electric Service Handbook 2017 — Single-Family Residential Projects 52
