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<div class="moz-cite-prefix">I'd be super sure: I just pulled some
wire out of a weatherhead that was probably 20 years old. All the
out door exposed conductors had the insulation cracked completely
through showing several feet of bare copper. <br>
I wish I had taken a picture, it was NOT just the outer clear
covering, it was a complete insulation breakdown.<br>
This has passed Denver City Electrical inspection BTW.<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 11/26/2013 6:55 AM, Dave Click wrote:<br>
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<font face="Helvetica, Arial, sans-serif">Andrew, that looks legit
to me. I think that a lot of the larger THWN-2 is sunlight
resistant, but the outer clear layer will probably start peeling
off within a few months of the installation (see attached). I
imagine the same issues we see with colored USE-2 fading over
time would also apply to THWN-2.<br>
<br>
Caveats would be 690.31(A) requiring readily-accessible output
circuit wiring be installed in a raceway, and 690.35(D)
requiring ungrounded dc wiring (source or output circuit) be
installed as either PV WIRE or within a raceway or TC.<br>
<br>
DKC<br>
<br>
<br>
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<div class="moz-cite-prefix">On 2013/11/25, 14:13, Andrew Truitt
wrote:<br>
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cite="mid:CAKTVxms6d127C7i3_=NKUQBrF16SSmWVfVoN9hzKzL03v3inqg@mail.gmail.com"
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<div dir="ltr">Wrenches - Is anyone familiar with sunlight
resistant THWN-2? I'm inspecting a groundmount on a Landfill
where all PV Output Circuit wiring is in exposed cable tray
(since they can't dig) and they are using SouthWire SIMpull
sunlight resistant THWN-2 conductors. NEC2011 690.31(B)
specifies USE-2 or PV Wire for Source Circuit wiring and
module interconnection, but doesn't address Output Circuit
wiring. Here are the specs for the wire types used:
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<div><a moz-do-not-send="true"
href="http://www.southwire.com/products/SIMpullAluminumT90.htm">http://www.southwire.com/products/SIMpullAluminumT90.htm</a><br>
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<div><a moz-do-not-send="true"
href="http://www.southwire.com/products/SIMpullTHHNCableAlumflexConductors.htm">http://www.southwire.com/products/SIMpullTHHNCableAlumflexConductors.htm</a><br>
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<div>Is this legit?
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<p class="MsoNormal"><span
style="color:rgb(56,118,29)">For a
brighter energy future,<br>
<br>
<br>
Andrew Truitt <br>
</span></p>
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<p class="MsoNormal"><span
style="color:rgb(56,118,29)">Principal<br>
Truitt Renewable Energy </span><span
style="color:rgb(56,118,29)">Consulting,
LLC</span></p>
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<p class="MsoNormal"><span
style="color:rgb(56,118,29)"><a
moz-do-not-send="true"
href="tel:%28202%29%20486-7507"
value="+12024867507"
target="_blank">(202) 486-7507</a></span></p>
<p class="MsoNormal"><a
moz-do-not-send="true"
href="http://www.linkedin.com/pub/andrew-truitt/8/622/713"
target="_blank">LinkedIn Profile</a></p>
<p class="MsoNormal"><a
moz-do-not-send="true"
href="http://truittreconsulting.weebly.com/"
target="_blank">Company Website<span><span></span></span></a></p>
<p class="MsoNormal"><span
style="color:rgb(56,118,29)"><span>NABCEP</span>
Certified PV Installation
Professional ID: 032407-66</span></p>
<p class="MsoNormal"><span
style="color:rgb(56,118,29)">Colorado
Journeyman Electrician License
No.: 600132</span><br>
</p>
<p class="MsoNormal"> <span
style="color:rgb(0,102,0)"><a
moz-do-not-send="true"
href="tel:%28202%29%20486-7507"
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<p><span style="color:rgb(20,125,186)"></span><span
style="color:rgb(20,125,186)"><img
src="cid:part7.06030002.08070505@solarray.com"
alt="24 copy.jpg" border="0"
height="133" width="200"></span><br>
<span style="color:rgb(20,125,186)"><br>
</span>"Don't get me wrong: I love nuclear
energy! It's just that I prefer fusion to
fission. And it just so happens that
there's an enormous fusion reactor safely
banked a few million miles from us. It
delivers more than we could ever use in
just about 8 minutes. And it's wireless!"<br>
<br>
~William McDonough</p>
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