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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'>Hi Wrenches<o:p></o:p></span></p><p class=MsoNormal><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></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks for your input,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Rich<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><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>Darryl Thayer<br><b>Sent:</b> Monday, September 12, 2011 10:39 PM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> Re: [RE-wrenches] Designing PV systems for lightning prone areas<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal style='background:white'><span style='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></p></div><div><p class=MsoNormal style='background:white'><span style='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></p></div><div><p class=MsoNormal style='background:white'><span style='font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p></div><div><div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> James Rudolph <jamesrudolph99@gmail.com><br><b>To:</b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br><b>Sent:</b> Friday, September 9, 2011 11:32 AM<br><b>Subject:</b> [RE-wrenches] Designing PV systems for lightning prone areas</span><span style='color:black'><o:p></o:p></span></p><div id=yiv1929885195><p class=MsoNormal style='background:white'><span style='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></p><div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p><div><div><div><p class=MsoNormal style='background:white'><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='color:black'> <o:p></o:p></span></p></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='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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