** *300.3(B) Conductors of the Same Circuit.* All conductors of the same
circuit and, where used, the grounded conductor and all equipment
grounding conductors and bonding conductors shall be contained within
the same raceway, auxiliary gutter, cable tray, cablebus assembly,
trench, cable, or cord, unless otherwise permitted in accordance with
300.3(B)(1) through (B)(4) [which don't help here]. National Electrical
Code 2008 Edition
On 2013/11/19, 12:38, August Goers wrote:
Hi All --
On a related note, I've become good friends with some of the
inspectors in San Francisco and they called me yesterday with a
question. Is it okay to run _individual_ DC conductors through EMT for
wire management purposes? We have always run paired positive and
negative conductors in conduit so the question had never occurred to
me. Obviously, you have to bond both ends of the conduit if it is over
250 v. I know that AC would have induction issues with running
individual conductors but I'm not sure with DC.
Thanks,
August
August Goers
Principal
Luminalt Energy Corporation
o: 415.641.4000
m: 415.559.1525
www.luminalt.com <http://www.luminalt.com>
*From:*re-wrenches-boun...@lists.re-wrenches.org
<mailto:re-wrenches-boun...@lists.re-wrenches.org>
[mailto:re-wrenches-boun...@lists.re-wrenches.org
<mailto:re-wrenches-boun...@lists.re-wrenches.org>] *On Behalf Of
*William Miller
*Sent:* Monday, November 18, 2013 11:33 PM
*To:* 'RE-wrenches'
*Subject:* Re: [RE-wrenches] PV Wiring methods
Bill:
There is no need to stuff MC4 cables into standard conduit. You can
either slot the pipe using our easy method or install bulkhead type
connectors. The connectors are readily available. I get them from PV
Cables in Northern California..
Wire routing problems and some solutions can be found on our web-site:
http://millersolar.com/MillerSolar/practices/PV_wiring/_PV_Wiring2.html
Since the industry won't provide wire management solutions, we are
making our own. Questions: Just write or call.
William Miller
*From:*re-wrenches-boun...@lists.re-wrenches.org
<mailto:re-wrenches-boun...@lists.re-wrenches.org>
[mailto:re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *frenergy
*Sent:* Thursday, November 14, 2013 7:46 AM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] PV Wiring methods
William, Bill....from another Bill,
Two things: For the rest of us (maybe it's just me?!) that's
still trying to figure out how (or why) to stuff a MC4 connector into
conduit and my hesitation in using SS wire ties for fear of the sharp
edges cutting or chaffing into cables, I'm open for advice. Any wire I
use on the roof is rated for that type of service and I have some
off-grid systems that have been in the sun for some 25 years where the
wire still looks nearly new even when flexing it to look for
checking/cracks. It seems the wire/insulation can take it, thus it
seems like the key to "wire management is to keep the wire from moving
and off the roof, secured to the racking, thus not compromising the
insulation.
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