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.
But that does not mean that it will every time. I have seen it pop some breakers but not others, in the same box. You can bet that it is not bothered by a breaker, open or closed. Just my .02 worth, Bob Ellison From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Rich Nicol Sent: Tuesday, September 13, 2011 6:17 AM To: 'RE-wrenches' Subject: [RE-wrenches] Ground Faults and Designing PV systems for lightning prone areas Hi Wrenches 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? Thanks for your input, Rich From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Darryl Thayer Sent: Monday, September 12, 2011 10:39 PM To: RE-wrenches Subject: Re: [RE-wrenches] Designing PV systems for lightning prone areas 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. 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 From: James Rudolph <jamesrudolp...@gmail.com> To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Sent: Friday, September 9, 2011 11:32 AM Subject: [RE-wrenches] Designing PV systems for lightning prone areas Dear Wrenches, 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. Sunny Regards, James Rudolph NABCEP Certified Installer Master Electrician SF Energy _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
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