I know you can't run AC difference phases in different pipes but what about 125 volt DC. Hot =one metal pipe Ground = another metal pipe from metal box to metal box in EMT coming off a large batterey bank.
Are you sure that you are dealing with HOT and GROUND? All of our strings are plus and minus and floating with respect to ground. Some of our apps use ground detectors while we just check others during monthly battery checks. Joe
Re: DC Question#100715 12/14/0608:30 PM12/14/0608:30 PM