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DC Question #100711
12/13/06 05:54 PM
12/13/06 05:54 PM
Yoopersup  Offline OP
Joined: Mar 2003
Posts: 840
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.

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Re: DC Question #100712
12/13/06 11:20 PM
12/13/06 11:20 PM
gfretwell  Offline

Joined: Jul 2004
Posts: 9,186
I don't think it would get hot but I bet you could stick your Kliens on the box and the magnetism would hold them there.

Greg Fretwell
Re: DC Question #100713
12/14/06 06:53 PM
12/14/06 06:53 PM
iwire  Offline
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
If the circuit is covered by the NEC 300.3(B) applies and requires the circuit conductors to be run together unless one of the exceptions fits.

Bob Badger
Construction & Maintenance Electrician
Re: DC Question #100714
12/14/06 08:24 PM
12/14/06 08:24 PM
JoeTestingEngr  Offline
Joined: Nov 2005
Posts: 791
Chicago, Il.
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.

Re: DC Question #100715
12/14/06 09:30 PM
12/14/06 09:30 PM
Yoopersup  Offline OP
Joined: Mar 2003
Posts: 840
Your right Plus and Minus But working with AC 99% of the time I used the wrong term.


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