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<p>Hi Will;</p>
<p>I understand that a UL factory assembly trumps any inspector
concerns in the field, that's why I left those wires alone.
However, no engineer designed that wire damage in. There is no
need for it to be bent that tight, there is plenty of space. If
they did require a tight bend, there are 90 deg lugs or insulated
buss bars for that purpose. I'd have to say this is definitely a
short coming of the UL inspection process. <br>
</p>
<p>If that work were done by my crew, I would have them replace all
the damaged wire. <br>
</p>
<p>Here is another THHN wire that is completely mauled with plier
marks to straighten it. The factory workers were getting obsessed
with straight, instead of what's right. <br>
</p>
<p><img src="cid:part1.5296DD03.2FA9F2D3@solarray.com" alt=""
width="530" height="653"></p>
<p>The electrons don't care about looks, but will happily short
through a bad spot in the insulation.</p>
<p>For comparison, here is the wiring in a Midnite E Panel, where
they have the correct bends. <br>
</p>
<p><img src="cid:part2.89AA6A48.AFCD72C7@solarray.com" alt=""
width="468" height="274"></p>
<p><br>
</p>
<pre class="moz-signature" cols="72">Ray Walters
Remote Solar
303 505-8760</pre>
<div class="moz-cite-prefix">On 10/15/18 12:27 PM, Will White wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CACdX-9nNudeHk0A8ZrsFiQV7Ks=ntpxRxvBx-fqX2+Wk0cADrQ@mail.gmail.com">
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<div dir="ltr">NEC doesn't apply to the interior components of a
UL listed device although I do see your point. I'm assuming they
designed it taking that bend into consideration.</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Mon, Oct 15, 2018 at 1:20 PM Ray <<a
href="mailto:ray@solarray.com" moz-do-not-send="true">ray@solarray.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<p>Greetings;</p>
<p>I've noticed several of the factory wired power panels
over the years from Magnum, Outback, Midnite, Etc are not
compliant with NEC 300.34 wire bending radius. (Radius
should not be less than 8 times the diameter) Basically
they should look like sweep bends in PVC conduit, not
plumbing. Here's a pic from a recent Magnum system</p>
<p><img src="cid:part1.9F7CF1C5.D4F7E01B@solarray.com"
alt="" moz-do-not-send="true" width="582" height="479"></p>
<p>You can see the kinks in the insulation on the inside of
the bend, and the color fading on the outside from being
overstretched. Some might think this is neat work, but
its actually permanent wire damage and a code violation.
Imagine the strain on the copper inside. <br>
</p>
<p>Midnite is very proactive and has improved, I ask that
Magnum do the same and soon.</p>
<p>Thanks,<br>
</p>
<pre class="m_-6216361868692380616moz-signature" cols="72">--
Ray Walters
Remote Solar
303 505-8760</pre>
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