ANSI C136.9 2003 Edition, 2003
For Roadway and Area Lighting Equipment – Socket Support Assemblies for Metal Heads – Mechanical Interchangeability
Includes all amendments and changes through Reaffirmation Notice , 2012
Published By:National Electrical Manufacturers Association (NEMA)
This standard covers the following equipment for use in metal heads that are in accordance with the latest revision of ANSI C136.6:
a) High-intensity discharge lamp ballast and socket assemblies in accordance with Figure 1.
b) Mogul and medium multiple incandescent lamp socket and support assemblies.