chuck-h
Member
Separate conduits for communications vs. power wiring. This is for inducted current reasons as well as overall voltage safety.
800.133(A)(1)(d):
"d) Electric Light, Power, Class 1, Non-Power-Limited
Fire Alarm, and Medium-Power Netvvork-Powered Broadband
Communications Circuits in Raceways, Compartments,
and Boxes. Communications conductors shall not be placed in
any raceway, compartment, outlet box, junction box, or similar
fitting with conductors of electric light, power, Class 1, nonpower-
limited fire alarm, or medium-power network-powered
broadband communications circuits."
Does "communication circuit" apply to the Raspberry Pi etc in the Caltech charger boxes? If so, should there be a partition between the power wiring and the Raspberry Pi stuff, making it two separate compartments?
I wonder what the NEC classification of the pilot wire circuit is (it shares the EV charging cable & connector with AC power, and it also connects to the LV side of the OpenEVSE board's isolation barrier.) Hmmm.