AC/DC in the same conduit [RE-wrenches]

[Jeff Clearwater]

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Hey Nick and Jay and all,

Yes there is a provision in the code "if part of 
the same system" but beware.  Not only can you 
run into interpretation issues by inspectors 
there is a very real possibility of induced 
currents and noise.  I'm not an expert on it but 
from my experience with high voltages and 
amperages in electric vehicles, DC current can 
cause some serious induction currents.  So you 
may get away with it on a code level but the 
physics of the matter should really be checked 
out!  At the amperages you are talking about with 
your PV system - they may not be a problem - but 
it would be nice to quantify that.

Anyone out there with a fundamental electrical 
engineering head better than mine know the really 
issues, here?

Best,

Jeff C.


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>Hi Nick,
>
>I don't have my code book in front of me, but 
>this issue has been reviewed here before and it 
>is OK to have both AC and DC in same 
>gutter/conduit if they are part of the same 
>system.
>
>I believe the issue of "same system" is open to 
>great interpretation but since the AC and DC are 
>part of the same "system" it is covered.
>
>
>thanks,
>
>jay
>
>Peltz power
>
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-- 
~~~~~~~~~~~~~
Jeff Clearwater
Village Power Design Associates
Sustainable Energy & Water Solutions for Home & Village
http://www.villagepower.com
gosolar at villagepower.com

530-470-9166
877-SOLARVillage
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