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NEMA TC 3-2004

Polyvinyl Chloride (PVC) Fittings for Use with Rigid PVC Conduit and Tubing
standard by National Electrical Manufacturers Association,

NEMA OS 3-2007

Selection and Installation Guidelines for Electrical Outlet Boxes
standard by National Electrical Manufacturers Association, 03/18/2008

NEMA TS 2-2016

Traffic Controller Assemblies with NTCIP Requirements – Version 03.07
standard by National Electrical Manufacturers Association, 2016

NEMA SB 50-2014

Emergency Communications Audio Intelligibility Applications Guide
standard by National Electrical Manufacturers Association, 2014

NEMA SG 11-2008

Alternating Current Outdoor High-Voltage Circuit Breakers
standard by National Electrical Manufacturers Association, 04/13/2009

NEMA TCB 4-2016

Guidelines for the Selection and Installation of Smooth-Wall Coilable High-Density Polyethylene (HDPE) Conduit
standard by National Electrical Manufacturers Association, 04/01/2017