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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Kirk,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>There is no standard diameter for PV Wire so Chapter 9 table 1 must be used. By the way, Table 1 is the code and the table in Annex C are not officially the code. They are simply informational based on the standard nominal diameters of various conductors. Many conductors have non-standard dimensions, so using Annex C blindly, without checking the diameter, is not a good idea. USE-2 and RHW-2 are good examples in addition to PV Wire where the diameter does not match the Annex C tables.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Lastly, the 40% requirement in Table 1 is an absolute maximum allowed. Best practice is to go no more than 75% of the maximum allowable (about 30% fill). This is particularly important for rubberized insulators like RHW and USE since 40% fill can be very difficult to pull through longer runs regardless of how much lube is used.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Bill.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Kirk Herander<br><b>Sent:</b> Friday, February 07, 2014 8:23 AM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> [RE-wrenches] conductor properties of PV wire<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:14.0pt'>Are these listed in the 2014 code (diameter, ampacities, etc)? I don’t see them in the usual Ch. 9 or 310.15 tables. Am I missing it?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>Kirk Herander<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>VT Solar, LLC<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>dba Vermont Solar Engineering<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>NABCEP<sup>TM </sup>Certified Inaugural Certificant<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>NYSERDA-eligible Installer<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>VT RE Incentive Program Partner<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt'>802.863.1202<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div>
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