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<div class="moz-cite-prefix">All Cable and probably other companies
can add striping and marking to any wire you need.<br>
<pre class="moz-signature" cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre>
On 9/23/2013 10:57 PM, <a class="moz-txt-link-abbreviated" href="mailto:don@energysolarnow.com">don@energysolarnow.com</a> wrote:<br>
</div>
<blockquote
cite="mid:20130923215741.8b71096d7d88573c67c7101a41a0e3ba.2477acb1d4.wbe@email14.secureserver.net"
type="cite"><span style="font-family:Verdana; color:#000000;
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<div>Marco- You should not transition to THHN wire at all for
the DC run. The PV wire is double insulated for a good reason-
the transformerless inverters are such suckers for a ground
fault that they need the extra protection. That's why the NEC
specifies PV wire. </div>
<div>I recently did an installation like you wrote, with a
transition at the j-box. This developed an intermittent ground
fault when wet, and when the P1 inverter failed it was deemed
out of warranty. Learn from my mistake-- use PV wire all the
way to the inverter. </div>
<div><br>
</div>
<div>That said, does anyone know where to get 1000 volt PV wire
in colors other than red, black, and white?</div>
<div>It would be nice to color code the positive runs like is
possible with colors of THHN.</div>
<div>I'm thinking of buying spools of white and spraying plastic
paint on them for a striped color coding.<br>
</div>
<div><br>
</div>
<div>Don Barch</div>
<div>Energy Solar</div>
<div><br>
</div>
<div><br>
</div>
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Message: 3<br>
Date: Mon, 23 Sep 2013 09:27:30 -1000<br>
From: "Marco Mangelsdorf" <<a moz-do-not-send="true"
href="mailto:marco@pvthawaii.com">marco@pvthawaii.com</a>><br>
To: "'RE-wrenches'" <<a moz-do-not-send="true"
href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>><br>
Subject: [RE-wrenches] transformerless inverters and
conductor colors<br>
Message-ID: <000001ceb892$f3e41470$dbac3d50$@com><br>
Content-Type: text/plain; charset="us-ascii"<br>
<br>
Hi all,<br>
<br>
We're doing more and more installs with TL inverters (SMA
and P1).<br>
<br>
I'm using double-insulated wire from the array string to the
first<br>
enclosure, as in j-box, and then transitioning to standard
THHN/THWN wire.<br>
<br>
--------------------------------------------<br>
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