Fire Alarm Wiring in Conduit
Fire Alarm Wiring in Conduit
(OP)
Article 760.61 of the NEC states the type of cable that can be used is FPLP, FPLR, or FPL depending on if it is plenum, riser, or general purpose cable. Does the code allow you to use other types of cable other than the approved substitutes if it is in conduit? I thought I've seen THHN wiring on speaker circuits before. Also, how come Article 725 allow you to use CL3R as a substitute wire type for CMR but Art. 760 does not appear to allow CL3R as a substitute for CMR?





RE: Fire Alarm Wiring in Conduit
I dont know much about substitutes, but you seem to have read the code. Make sure you do not confuse cables for communication (telephone/data) etc. with fire alarm.