Different Systems (Was Conduit inside the tracker pole) [RE-wrenches]

[John Berdner]

Allan:
 
You are correct . The code allows ac and dc in the same conduit or
raceway but...
1) The insulation on all conductors must be rated for the highest
voltage in the raceway.
Normally not a problem since most power wire is 600 V rated.  Some
control cables can be only 300 V rated.
 
2) You can not terminate the ac and dc in the same conduit or raceway
without a mechanical barrier.
No split bolts, taps, or splices if you mix ac and dc.
 
If you have any questions or if I can be of any further assistance,
please to not hesitate to contact me.
 
Best Regards,
 
John Berdner


>>> allan at positiveenergysolar.com 6/16/2003 02:29:42 PM >>>

Matt,
Per NEC 300-2 (c) (1), AC and DC circuits are permitted inside the
same
enclosure, cable, or raceway.

Or am I missing some fine print elsewhere?

Allan at Pos E

----- Original Message -----
From: <mlafferty at universalenergies.com>
>
> 2. Although admirable, internal conduit is not required unless there
are
> multiple sources of electricity in the same raceway.  (I.E. AC & DC)

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