Covers the following equipment for luminaires for lighting roadways: a) Series sockets having medium impact strength and intended for service at high temperatures. b) Series sockets having high impact strength and intended for services at limited tempera
ANSI C136.4-2003 history
1970ANSI C136.4-2019 Roadway and Area Lighting Equipment — Series Sockets and Series- Socket Receptacles
2003ANSI C136.4-2003 Roadway and Area Lighting Equipment - Series Sockets and Series - Socket Receptacles