<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <meta content="text/html; charset=ISO-8859-1"
      http-equiv="Content-Type">
  </head>
  <body bgcolor="#ffffff" text="#000000">
    Mick,<br>
    -2 means 90 degrees C rather than 75. THWN-2 thus means that it is
    wet-rated at 90C.  That is generally considered Code for arrays,
    such as if it is run in NM flex conduit to a traditional module
    j-box. The j-box area may be considered to be able to get hot enough
    to require 90C rated wire. Nowadays with MC-type module leads,
    combiner boxes aren't subject to the same high temperatures on the
    THWN as when they terminate in module j-boxes, and the higher
    temperature rating isn't generally necessary.<br>
    <br>
    Much of what I'm saying here is older John Wiles stuff.<br>
    Allan<br>
     <br>
    <div class="moz-signature">
      <meta http-equiv="Content-Type" content="text/html;
        charset=ISO-8859-1">
      <meta name="ProgId" content="Word.Document">
      <meta name="Generator" content="Microsoft Word 11">
      <meta name="Originator" content="Microsoft Word 11">
      <link rel="File-List" href="signature_files/filelist.xml">
      <!--[if gte mso 9]><xml>
 <o:DocumentProperties>
  <o:Author>pe</o:Author>
  <o:LastAuthor>pe</o:LastAuthor>
  <o:Revision>2</o:Revision>
  <o:TotalTime>1</o:TotalTime>
  <o:Created>2009-12-09T22:29:00Z</o:Created>
  <o:LastSaved>2009-12-09T22:30:00Z</o:LastSaved>
  <o:Pages>1</o:Pages>
  <o:Words>52</o:Words>
  <o:Characters>298</o:Characters>
  <o:Company>pe</o:Company>
  <o:Lines>2</o:Lines>
  <o:Paragraphs>1</o:Paragraphs>
  <o:CharactersWithSpaces>349</o:CharactersWithSpaces>
  <o:Version>11.9999</o:Version>
 </o:DocumentProperties>
</xml><![endif]--><!--[if gte mso 9]><xml>
 <w:WordDocument>
  <w:SpellingState>Clean</w:SpellingState>
  <w:GrammarState>Clean</w:GrammarState>
  <w:ValidateAgainstSchemas/>
  <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid>
  <w:IgnoreMixedContent>false</w:IgnoreMixedContent>
  <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText>
  <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>
 </w:WordDocument>
</xml><![endif]--><!--[if gte mso 9]><xml>
 <w:LatentStyles DefLockedState="false" LatentStyleCount="156">
 </w:LatentStyles>
</xml><![endif]-->
      <style>
<!--
 /* Style Definitions */
 p.MsoNormal, li.MsoNormal, div.MsoNormal
        {mso-style-parent:"";
        margin:0in;
        margin-bottom:.0001pt;
        mso-pagination:widow-orphan;
        font-size:12.0pt;
        font-family:"Times New Roman";
        mso-fareast-font-family:"Times New Roman";
        color:black;}
a:link, span.MsoHyperlink
        {color:blue;}
a:visited, span.MsoHyperlinkFollowed
        {color:blue;}
span.il
        {mso-style-name:il;}
@page Section1
        {size:8.5in 11.0in;
        margin:1.0in 1.25in 1.0in 1.25in;
        mso-header-margin:.5in;
        mso-footer-margin:.5in;
        mso-paper-source:0;}
div.Section1
        {page:Section1;}
-->
</style><!--[if gte mso 10]>
<style>
 /* Style Definitions */
 table.MsoNormalTable
        {mso-style-name:"Table Normal";
        mso-tstyle-rowband-size:0;
        mso-tstyle-colband-size:0;
        mso-style-noshow:yes;
        mso-style-parent:"";
        mso-padding-alt:0in 5.4pt 0in 5.4pt;
        mso-para-margin:0in;
        mso-para-margin-bottom:.0001pt;
        mso-pagination:widow-orphan;
        font-size:10.0pt;
        font-family:"Times New Roman";
        mso-ansi-language:#0400;
        mso-fareast-language:#0400;
        mso-bidi-language:#0400;}
</style>
<![endif]--><!--[if gte mso 9]><xml>
 <o:shapedefaults v:ext="edit" spidmax="2050"/>
</xml><![endif]--><!--[if gte mso 9]><xml>
 <o:shapelayout v:ext="edit">
  <o:idmap v:ext="edit" data="1"/>
 </o:shapelayout></xml><![endif]-->
      <div class="Section1">
        <p class="MsoNormal" style=""><span class="il"><b style="">Allan</b></span><b
            style=""> Sindelar</b><span style="font-size: 10pt;"><br>
            <a href="mailto:Allan@positiveenergysolar.com"
              target="_blank"><span class="il">Allan</span>@positiveenergysolar.com</a><br>
            NABCEP Certified Photovoltaic Installer<br>
            EE98J Journeyman Electrician<br>
            <b style="">Positive Energy, Inc.</b><br>
            3201 Calle Marie<br>
            Santa Fe, New Mexico 87507<br>
            <b style="">505 424-1112</b><br>
            <a href="http://www.positiveenergysolar.com/"
              target="_blank">www.positiveenergysolar.com</a></span></p>
      </div>
    </div>
    <br>
    On 7/23/2010 10:52 AM, Mick Abraham wrote:
    <blockquote
      cite="mid:AANLkTikavaO8X-HxTQpQZ5_KO4fnOk6DOeo1Ekm_57TA@mail.gmail.com"
      type="cite"><span class="Apple-style-span" style="font-family:
        arial,sans-serif; font-size: 12.5px; border-collapse: collapse;">
        <div>I'm sorry to broadcast my ignorance, but:</div>
        <div><br>
        </div>
        <div>Could someone explain to me the significance of the -2
          marking? Reply off-list if you wish to save bandwidth...but
          other List members may also be wondering... </div>
        <div><br>
        </div>
        <div>Thanks, </div>
        <div><br>
        </div>
      </span>Mick Abraham, Proprietor<br>
      <a moz-do-not-send="true" href="http://www.abrahamsolar.com">www.abrahamsolar.com</a><br>
      <br>
      Voice: 970-731-4675<br>
      <br>
      <br>
      <div class="gmail_quote">On Fri, Jul 23, 2010 at 10:48 AM, Nick
        Soleil <span dir="ltr"><<a moz-do-not-send="true"
            href="mailto:nicksoleilsolar@yahoo.com">nicksoleilsolar@yahoo.com</a>></span>
        wrote:<br>
        <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
          0.8ex; border-left: 1px solid rgb(204, 204, 204);
          padding-left: 1ex;">
          <div bgcolor="#FFFFFF">
            <div>I have specified THWN-2 for years, but occasionally
              will not be able to source it!<br>
              <br>
              Sent from my iPhone</div>
            <div>
              <div class="h5">
                <div><br>
                  On Jul 23, 2010, at 11:37 AM, "Peter Parrish" <<a
                    moz-do-not-send="true"
                    href="mailto:peter.parrish@calsolareng.com"
                    target="_blank">peter.parrish@calsolareng.com</a>>
                  wrote:<br>
                  <br>
                </div>
                <blockquote type="cite">
                  <div>
                    <div>
                      <p class="MsoNormal"><font color="navy"
                          face="Arial" size="2"><span style="font-size:
                            10pt; font-family: Arial; color: navy;">We
                            went through a similar problem with
                            some beach communities here in SoCal.
                            Because of the high humidity (all winter
                            and summer mornings) they wanted THWN-2 for
                            all conduit runs (as well as PVC
                            instead of EMT). At first we were charged a
                            premium for THWN-2 compared to
                            THHN. But then we found a source at All
                            Phase Electrical Supply Burbank CA (a part
                            of CED) for THWN-2 #10 stranded @
                            $162.40/k-ft. Brand is <span>En(</span>m?)<span>core</span>
                            Wire. THWN-2 listing is printed on the
                            insulation.</span></font></p>
                      <p class="MsoNormal"><font color="navy"
                          face="Arial" size="2"><span style="font-size:
                            10pt; font-family: Arial; color: navy;"> </span></font></p>
                      <p class="MsoNormal"><font color="navy"
                          face="Arial" size="2"><span style="font-size:
                            10pt; font-family: Arial; color: navy;">-
                            Peter</span></font></p>
                      <p class="MsoNormal"><font color="navy"
                          face="Arial" size="2"><span style="font-size:
                            10pt; font-family: Arial; color: navy;"> </span></font></p>
                      <div>
                        <p class="MsoNormal"><font color="navy"
                            face="Arial" size="2"><span
                              style="font-size: 10pt; font-family:
                              Arial; color: navy;">Peter T. Parrish,
                              Ph.D., President<br>
                              California
                              Solar Engineering, Inc.<br>
                              820 Cynthia Ave., Los Angeles, CA 90065<br>
                              CA Lic. 854779, NABCEP Cert. 031806-26<br>
                              <a moz-do-not-send="true"
                                href="mailto:peter.parrish@calsolareng.com"
                                target="_blank">peter.parrish@calsolareng.com</a><span> 
                              </span><br>
                              Ph 323-258-8883, Mobile
                              323-839-6108, Fax 323-258-8885</span></font><font
                            color="navy"><span style="color: navy;"><span>                                                              
                              </span><span>                                    </span></span></font></p>
                        <p><font color="navy" face="Arial" size="2"><span
                              style="font-size: 10pt;"> </span></font><font
                            color="black" face="Times New Roman"
                            size="3"><span style="font-size: 12pt;
                              font-family: "Times New Roman";
                              color: windowtext;"></span></font></p>
                      </div>
                      <p class="MsoNormal"><font face="Times New Roman"
                          size="3"><span style="font-size: 12pt;"> </span></font></p>
                    </div>
                  </div>
                </blockquote>
              </div>
            </div>
            <blockquote type="cite">
              <div><span>_______________________________________________</span>
                <div class="im"><br>
                  <span>List sponsored by Home Power magazine</span><br>
                  <span></span><br>
                  <span>List Address: <a moz-do-not-send="true"
                      href="mailto:RE-wrenches@lists.re-wrenches.org"
                      target="_blank">RE-wrenches@lists.re-wrenches.org</a></span><br>
                  <span></span><br>
                  <span>Options & settings:</span><br>
                  <span><a moz-do-not-send="true"
href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org"
                      target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a></span><br>
                  <span></span><br>
                  <span>List-Archive: <a moz-do-not-send="true"
href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org"
                      target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a></span><br>
                  <span></span><br>
                  <span>List rules & etiquette:</span><br>
                  <span><a moz-do-not-send="true"
                      href="http://www.re-wrenches.org/etiquette.htm"
                      target="_blank">www.re-wrenches.org/etiquette.htm</a></span><br>
                  <span></span><br>
                  <span>Check out participant bios:</span><br>
                  <span><a moz-do-not-send="true"
                      href="http://www.members.re-wrenches.org"
                      target="_blank">www.members.re-wrenches.org</a></span><br>
                  <span></span><br>
                </div>
              </div>
            </blockquote>
          </div>
          <br>
          _______________________________________________<br>
          List sponsored by Home Power magazine<br>
          <br>
          List Address: <a moz-do-not-send="true"
            href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br>
          <br>
          Options & settings:<br>
          <a moz-do-not-send="true"
href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org"
            target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
          <br>
          List-Archive: <a moz-do-not-send="true"
href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org"
            target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
          <br>
          List rules & etiquette:<br>
          <a moz-do-not-send="true"
            href="http://www.re-wrenches.org/etiquette.htm"
            target="_blank">www.re-wrenches.org/etiquette.htm</a><br>
          <br>
          Check out participant bios:<br>
          <a moz-do-not-send="true"
            href="http://www.members.re-wrenches.org" target="_blank">www.members.re-wrenches.org</a><br>
          <br>
          <br>
        </blockquote>
      </div>
      <br>
      <pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
List sponsored by Home Power magazine

List Address: <a class="moz-txt-link-abbreviated" href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a>

Options & settings:
<a class="moz-txt-link-freetext" href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a>

List-Archive: <a class="moz-txt-link-freetext" href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a>

List rules & etiquette:
<a class="moz-txt-link-abbreviated" href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a>

Check out participant bios:
<a class="moz-txt-link-abbreviated" href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a>

</pre>
    </blockquote>
  </body>
</html>