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So this may be a dumb question, but I'm assuming wire nuts are not
suitable for Fine strand wire? I agree that most installs are not
code compliant in this regard. Its really tough to find parts or
even good info on this. <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>
<div class="moz-cite-prefix">On 8/11/2016 8:03 AM, August Goers
wrote:<br>
</div>
<blockquote
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hopefully
manufacturers will steer away from supplying fine stranded
wires with their trunk cables – it’s been a joke trying to
fine the proper listed reasonably priced parts to make these
connections. I bet that a huge percentage of the installs
out there are not meeting the listing for fine stranded
conductors. </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">That
said, we use ferrules on the individual fine stranded
conductors and then make the splices with the Ideal/Buchanan
splice caps. This particular combo was presented in the
SunPower ACPV instruction document and says it is listed for
their class K conductors. I haven’t looked up the listing
documents myself (at least recently) since this was
presented in the manufacturer’s manual. As I posted before,
the Ideal splice caps are the bomb! We love them and I’d
highly recommend checking them out if you haven’t already.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Best,</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">August</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Luminalt</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<div>
<div style="border:none;border-top:solid #b5c4df
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
RE-wrenches [mailto:<a moz-do-not-send="true"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Glenn Burt<br>
<b>Sent:</b> Wednesday, August 10, 2016 8:44 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Pass
through/transition box for Enphase</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">The
Ideal website for the Buchanan splice has a link to the
UL listing for the product. It does not list it for use
with anything other than standard stranded conductors.<br>
If it is not part of the listing, it is not approved for
that use, regardless of historical or anecdotal use.<br>
That is what the NEC says, and what the UL listing says
and the UL specification for their listing says.</span></p>
</div>
</div>
<div>
<div class="MsoNormal" style="text-align:center"
align="center">
<hr align="center" size="2" width="100%"></div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:
</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""><a
moz-do-not-send="true"
href="mailto:bteitelbaum@aeesolar.com">Brian Teitelbaum</a></span><br>
<b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Sent:
</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">8/10/2016
22:48</span><br>
<b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">To:
</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""><a
moz-do-not-send="true"
href="mailto:re-wrenches@lists.re-wrenches.org">RE-wrenches</a></span><br>
<b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Subject:
</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Re:
[RE-wrenches] Pass through/transition box for Enphase</span></p>
</div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Jeremy,</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Without
digging into the specs on the Ideal connectors, I doubt that
they will work with fine-stranded wire.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">The
problem with these types of connectors is that the set screw
that you turn to tighten the connection is in direct contact
with the wire strands. As you tighten it, it rubs the
strands in a circular motion, which will stretch, flatten,
and tear the strands. It would work fine if you use
ferrules, but not without them.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Terminals
that are rated for direct use with fine-stranded wire would
have a clamping-type terminal, where the screw used to
tighten the connection pushes down on a solid piece of metal
which then clamps the wire. Even in this case, it may still
not be approved for fine-stranded wire depending on its
design.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">The
Buchanan splices should be fine. They are basically the same
as a ferrule, except that they are crimped with a crimping
tool instead of the pressure from tightening a screw in a
bus bar. The crimping tool is not in direct contact with the
wire strands, so there is no tearing or other damage to the
wire. However, the spec sheet does not specify the
acceptable wire types, and I can’t seem to find anything
with a Google search. It might be worth contacting
Buchanan/Ideal to see if they have better info.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Brian
Teitelbaum</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">AEE
Solar</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<div>
<div style="border:none;border-top:solid windowtext
1.0pt;padding:3.0pt 0in 0in 0in;border-color:currentColor
currentColor">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
RE-wrenches [mailto:<a moz-do-not-send="true"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Jeremy Rodriguez<br>
<b>Sent:</b> Wednesday, August 10, 2016 6:32 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Pass
through/transition box for Enphase</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">How about these?</p>
</div>
<div id="AppleMailSignature">
<p class="MsoNormal"><a moz-do-not-send="true"
href="https://idealind.com/us/en/products/wire-termination/set-screw-connectors/set-screw-connectors/set-screw-wire-connectors.aspx">https://idealind.com/us/en/products/wire-termination/set-screw-connectors/set-screw-connectors/set-screw-wire-connectors.aspx</a><br>
<br>
Jeremy Rodriguez </p>
<div>
<p class="MsoNormal">Solar Installation And Design Expert </p>
<div>
<p class="MsoNormal">All Solar, Inc. </p>
<div>
<p class="MsoNormal">1463 M St</p>
<div>
<p class="MsoNormal">Penrose Colorado 81240</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Sent by Jeremy's iPhone. Sorry
for typos and shorthand!</p>
</div>
</div>
</div>
</div>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
On Aug 8, 2016, at 2:00 PM, Benn Kilburn <<a
moz-do-not-send="true"
href="mailto:benn@skyfireenergy.com">benn@skyfireenergy.com</a>>
wrote:</p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal">Din rail mounted terminal blocks....
Weidmuler WDU6 or WDU10, depending on the wire size you
are using. <br>
<br>
Benn Kilburn </p>
<div>
<p class="MsoNormal">SkyFire Energy Inc. </p>
</div>
<div>
<p class="MsoNormal">780-906-7807</p>
</div>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
On Aug 8, 2016, at 12:49 PM, Jason Szumlanski <<a
moz-do-not-send="true"
href="mailto:jason@floridasolardesigngroup.com">jason@floridasolardesigngroup.com</a>>
wrote:</p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif"">I'm
looking to bring 8 Enphase 240V circuits in
multiple conduits into an enclosure inside the
attic where I can transition to Romex. I'd
rather use some kind of rail mounted terminals
in an enclosure or something rather than making
splices in a generic j-box. I'm not looking to
combine circuits - just transition from THWN to
Romex and keep things neat an organized.</span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif""> </span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif"">Any
sugg</span></p>
</div>
</div>
</div>
</blockquote>
</div>
</blockquote>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">[The entire original message is not
included.]</p>
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