we do a fair amount of 400 Hz work. Not much different then for 60 Hz. Same wire insulation, basically the same ampacity, except at very large wires.chuckv6 said:Does anyone know anything about special requirements for 400 hz circuits? I know that you're supposed to use non-magnetic conduit but what about wire type? Do you need a special panelboard? I'm trying to bid a job at a coast guard base that needs 400 hz power for their aircraft.
petersonra said:the non-magnetic conduit thing may just be their preference.