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ANSI C136.11-2011 (S2021)
Roadway and Area Lighting Equipment - Multiple Sockets
Discusses medium and mogul screw base sockets used in multiple fixture circuits or in luminaires designed and intended for parallel wired circuits. Provides interchangeability of lamps, minimum safety Standards for operating personnel, and minimum performance criteria in lighting roadways and areas open to the public.
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NEMA: National Electrical Manufacturers Association [nema]