AC/DC in Same Conduit? [RE-wrenches]

Matt Lafferty pvpro at attbi.com
Thu Jul 11 10:23:31 PDT 2002


Wrenches:

Now that I know there are NEC Goddesses, I'll have to pay more attention!
(Not entirely off-topic, Michael :-) )

Mixing of "separately derived" power sources within a single raceway,
without a physical separation, to my knowledge has always been prohibited.
This includes 480 VAC in the same conduit as 120 VAC, etc.

I don't have time to dig out the reference(s) right this second, but, as
Bill B said, "Do it and become a Newt".  Do Newts still exist?  I thought
the last one retired a couple of years ago.....

-Matt Lafferty
pvpro at attbi.com

David asks:

> Can 120 VAC and high voltage (about 350 V) power cables be run in the same
conduit without offending the NEC gods and goddesses?
>

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