NEMA - ANSI C136.9
For Roadway and Area Lighting Equipment – Socket Support Assemblies for Metal Heads – Mechanical Interchangeability
|Publication Date:||1 January 2003|
This standard covers the following equipment for use in metal heads that are in accordance with the latest revision of 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 in accordance with Figure 2.
The purpose of this standard is to permit mechanical interchangeability of the socket support assemblies.