SCL_Material_Standard_7055.09.pdf

This document is a Seattle City Light Material Standard (Standard Number 7055.09) for PVC Conduit Fittings, dated August 5, 2015, with an effective date of October 30, 2015. The specification covers polyvinyl chloride (PVC) plastic utilities fittings suitable for underground installations, specifically Type DB-120, and provides detailed requirements for procurement and usage. The document outlines specifications for end bells and plugs in various nominal sizes (2, 3, 3-1/2, 4, 5, and 6 inches), with specific stock numbers assigned to each size.

The material standard specifies technical requirements including compliance with NEMA TC 9 standards, color specifications (medium to dark gray), and marking requirements. Approved manufacturers for end bells include Carlon, Kraloy, PW Eagle Inc. (dba PWPipe), and Scepter, while plug manufacturers are limited to Carlon. An additional adapter specification is provided for 3-1/2" nominal round to 3-1/2" nominal square by 24" long, with approved manufacturers including Carlon, J-M Manufacturing Inc., Picoma, PW Eagle Inc., and Raceways Tech. The document references related SCL Material Standards 7015.05 and 7345.7, providing context for the conduit and fitting specifications.