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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'>I would expect that a lightning strike could energize everything, but not necessarily equally. I can’t see it, not popping breakers and ground faults. <o:p></o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'>But that does not mean that it will every time.<o:p></o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'>I have seen it pop some breakers but not others, in the same box.<o:p></o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'>You can bet that it is not bothered by a breaker, open or closed.<o:p></o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'>Just my .02 worth,<o:p></o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'>Bob Ellison <o:p></o:p></span></font></p><p class=MsoNormal><font size=4 color=black face=Calibri><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></font></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";font-weight:bold'>From:</span></font></b><font size=2 face=Tahoma><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><span style='font-weight:bold'>On Behalf Of </span></b>Rich Nicol<br><b><span style='font-weight:bold'>Sent:</span></b> Tuesday, September 13, 2011 6:17 AM<br><b><span style='font-weight:bold'>To:</span></b> 'RE-wrenches'<br><b><span style='font-weight:bold'>Subject:</span></b> [RE-wrenches] Ground Faults and Designing PV systems for lightning prone areas<o:p></o:p></span></font></p></div></div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Wrenches<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Is there a connection between lightening strikes and ground fault fuses popping? Can lightening strikes energize the grounding electrode and thereby pop a ground fault fuse? <o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks for your input,<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Rich<o:p></o:p></span></font></p><p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";font-weight:bold'>From:</span></font></b><font size=2 face=Tahoma><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><span style='font-weight:bold'>On Behalf Of </span></b>Darryl Thayer<br><b><span style='font-weight:bold'>Sent:</span></b> Monday, September 12, 2011 10:39 PM<br><b><span style='font-weight:bold'>To:</span></b> RE-wrenches<br><b><span style='font-weight:bold'>Subject:</span></b> Re: [RE-wrenches] Designing PV systems for lightning prone areas<o:p></o:p></span></font></p></div></div><p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p><div><div><p class=MsoNormal style='background:white'><font size=3 color=black face=Arial><span style='font-size:12.0pt;font-family:"Arial","sans-serif";color:black'>Lightening has a high voltage and HIgh current and High frequency. The lightening has gathered it energy over a large area, It has either picked up electrons or lost electrons to generate this large Potential The electrons want to return to the earth, So you do not want that path to be through your equipment. <o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face=Arial><span style='font-size:12.0pt;font-family:"Arial","sans-serif";color:black'>1) ESTABILSH A GOOD GROUND ROD ( i had a system that had blown up about 3 times, I drove a 3/4" sectioned ground rod 80' and then drove another about 20 feet away. Tied the two together and to the frames of my modules. Then I took aand connected to the module conductors, using a MOV similar to what Midnight solar sells. The system is in a higher relative area, this I did in 2003 it has never blown up since <o:p></o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face=Arial><span style='font-size:12.0pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></font></p></div><div><div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><b><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black;font-weight:bold'>From:</span></font></b><font size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> James Rudolph <jamesrudolph99@gmail.com><br><b><span style='font-weight:bold'>To:</span></b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br><b><span style='font-weight:bold'>Sent:</span></b> Friday, September 9, 2011 11:32 AM<br><b><span style='font-weight:bold'>Subject:</span></b> [RE-wrenches] Designing PV systems for lightning prone areas</span></font><font color=black><span style='color:black'><o:p></o:p></span></font></p><div id=yiv1929885195><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><br>Dear Wrenches,<br><br>Does anybody have any best practices for designing large PV arrays on metal building in lightning prone areas? Lightning arrestors on the DC side and Surge suppressors on the AC load side? Any input or resources would be greatly appreciated.<br><br>Sunny Regards,<br> <br>James Rudolph<br>NABCEP Certified Installer<br>Master Electrician<br>SF Energy<o:p></o:p></span></font></p><div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p><div><div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p></div><div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'> <o:p></o:p></span></font></p></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><br>_______________________________________________<br>List sponsored by Home Power magazine<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br><br>Options & settings:<br><a 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 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 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 href="http://www.members.re-wrenches.org" target="_blank">www.members.re-wrenches.org</a><o:p></o:p></span></font></p></blockquote></div><p class=MsoNormal style='background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><font size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;color:black'><br>_______________________________________________<br>List sponsored by Home Power magazine<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br><br>Options & settings:<br><a 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 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>www.re-wrenches.org/etiquette.htm<br><br>Check out participant bios:<br>www.members.re-wrenches.org<br><br><o:p></o:p></span></font></p></div></div></div></div></body></html>