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#36142 - 03/29/04 05:52 PM New, with an off the wall question
wiremann-54270 Offline
Junior Member

Registered: 01/25/04
Posts: 9
Loc: Lebanon, PA USA
Hello to all. I have been lurking on this board for some time, and now I finally have a question. Do the conductor ampacity tables of the NEC apply to DC systems? I would think so since it only states voltage ratings, and does not specify AC only. Am I way off in my thinking? I have worked with DC motors and control, but never had to size anything.
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#36143 - 03/29/04 07:06 PM Re: New, with an off the wall question
hbiss Offline
Member

Registered: 12/16/03
Posts: 893
Loc: Hawthorne, NY USA
Yes it does.

-Hal
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#36144 - 03/30/04 11:32 AM Re: New, with an off the wall question
DougW Offline
Member

Registered: 06/08/03
Posts: 1083
Loc: North Chicago, IL
I would agree that it does, since the NEC refers to signal and control circuits, as well as fire alarm circuits. These all (can be designed to) operate on DC.

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#36145 - 03/30/04 01:05 PM Re: New, with an off the wall question
wiremann-54270 Offline
Junior Member

Registered: 01/25/04
Posts: 9
Loc: Lebanon, PA USA
Thanks, I was starting to wonder.
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