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<DIV><FONT size=2 face=Arial>There is an exception in NEC2011 regarding the
point of connection. This may not apply, but you could avoid the supply
side. 4500W / 240V = 18.75 x 1.25 = 23.4A, well under the 120% rule.
reference 705.12(D)(2)</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Jeremy</FONT></DIV>
<DIV><FONT size=2 face=Arial>All Solar</FONT></DIV>
<DIV><FONT size=2 face=Arial>CO,USA</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=garrison@solarserviceinc.com
href="mailto:garrison@solarserviceinc.com">Garrison Riegel</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=re-wrenches@lists.re-wrenches.org
href="mailto:re-wrenches@lists.re-wrenches.org">'RE-wrenches'</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, February 27, 2013 2:15
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [RE-wrenches] Conductor Sizing
for Supply Side Connection</DIV>
<DIV><BR></DIV>
<DIV class=WordSection1>
<P class=MsoNormal>Wrenches,<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>On an upcoming job we have a Xantrex XW4548 interconnecting
with a 200A service, and I’d very much appreciate some advice if y’all are
willing. <o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>Since the inverter output OCPD is required to be 60A we are
looking at a supply side connection, and I have two questions:<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P style="TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo1"
class=MsoListParagraph><![if !supportLists]><SPAN
style="mso-list: Ignore">1.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]>Before the point of interconnection the inverter
output circuit will first pass through the XW Power Distribution Panel and
inverter bypass, which is essentially a 60A breaker. The service
disconnect for the supply side connection will also be fused at 60A.
Does the 120% rule apply to the conductor between these two OCPDs? Or
since this is a supply side connection in accordance with 690.64(A),
690.64(B)(2) will not apply? [this AHJ is on the 2008 NEC]<o:p></o:p></P>
<P class=MsoListParagraph><o:p> </o:p></P>
<P style="TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo1"
class=MsoListParagraph><![if !supportLists]><SPAN
style="mso-list: Ignore">2.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]>Can anyone recommend a reliable insulation piercing
tap connector? Or would you recommend something else entirely for a
residential supply side connection?<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>Thanks in advance,<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>Garrison<o:p></o:p></P>
<P class=MsoNormal>847-677-0950<o:p></o:p></P>
<P class=MsoNormal>Solar Service Inc.<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal><o:p> </o:p></P></DIV>
<P>
<HR>
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