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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='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Nick,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Can you cite a code section that supports this. (not challenging you – it makes sense and I agree)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I have been wondering about SMA’s recommendation to parallel two 1/0 cables for a Sunny Island. If the wire sizes and lengths are identical, is this acceptable?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-family:"Cambria","serif";color:#1F497D'>Jason Szumlanski<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:#1F497D'>Fafco Solar<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></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-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Nick Soleil<br><b>Sent:</b> Wednesday, February 02, 2011 12:05 PM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> Re: [RE-wrenches] Parallel wire runs to increase size<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>You shouldn't parallel wiring that way. That is not acceptable by code, and it is unnecessary. If the #10 is not sufficient just replace it. Due to the fact that the larger wiring has much less resistance, most if not all of the current will flow on the larger wires.<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> <o:p></o:p></span></p></div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Nick Soleil<br>Project Manager<br>Advanced Alternative Energy Solutions, LLC<br>PO Box 657<br>Petaluma, CA 94953<br>Cell: 707-321-2937<br>Office: 707-789-9537<br>Fax: 707-769-9037<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><div><div class=MsoNormal align=center style='text-align:center'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><hr size=1 width="100%" align=center></span></div><p class=MsoNormal style='margin-bottom:12.0pt'><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"'> "Starlight Solar, Larry Crutcher" <larry@starlightsolar.com><br><b>To:</b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br><b>Sent:</b> Wed, February 2, 2011 8:00:07 AM<br><b>Subject:</b> [RE-wrenches] Parallel wire runs to increase size</span><o:p></o:p></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Wrenches,</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Some of our business involves repairing poor PV solar installations on recreational vehicles. So often we wind up installing a roof junction box and running a second PV to controller wire and then replacing the controller to battery wire size. For instance, we may find a 10 gauge wire run to the controller. We then add #8, #6, #4 or even 2 gauge and parallel to the #10 depending on power and distance of the run. My question: Is there a calculator or chart that will tell me what the combination of any two wire sizes equate to? example: #10 + #4 = X</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Thanks.</span><o:p></o:p></p></div><div><p><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>Larry Crutcher<br><a href="http://www.starlightsolar.com" target="_blank">Starlight Solar Power Systems</a><br></span><em><span style='font-size:7.5pt;font-family:"Georgia","serif";color:red'>powered by </span></em><em><b><span style='font-size:13.5pt;font-family:"Georgia","serif";color:red'>S</span></b></em><em><b><span style='font-size:10.0pt;font-family:"Georgia","serif";color:red'>TARLIGHT</span></b></em><span style='font-size:10.0pt;font-family:"Georgia","serif";color:red'>™</span><o:p></o:p></p></div></div></div></div><p class=MsoNormal><o:p> </o:p></p></div></body></html>