Not only are the voltages on these agricultural electric fences pretty high as Roy mentions, but many supply the voltage as a pulsed square wave and therefore generate harmonics and noise too. Electrical separation is necessary, and some distance will help.
Jeff Irish Hudson Solar From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Roy Butler Sent: Friday, December 06, 2013 2:54 PM To: er...@repowersolutions.com; RE-wrenches Subject: Re: [RE-wrenches] Electric fence, metal buildings, lightning protection systems Erika, That electric fencer needs it's own grounding electrode system! Unlike the premises grounding system, where there's normally no voltage present, the fencer's ground completes the circuit. I have measured over 12,000 volts on our farm fencer grounding conductor....I have learned not to touch it....had to try it 2 or 3 times to be sure though ;-) Roy Butler NABCEP Certified Solar PV Installer(r) NYSERDA eligible PV & wind installer Four Winds Renewable Energy, LLC 8902 Route 46, Arkport, NY 14807 607-324-9747 www.four-winds-energy.com<http://www.four-winds-energy.com> Join us at the 10th Annual Small Wind Conference A Gathering of Installers, Manufacturers, Dealers, & Distributors June 17 and 18, 2014 in Stevens Point, Wisconsin www.smallwindconference.com<http://www.smallwindconference.com> Although no trees were killed in the sending of this message, a large number of electrons were terribly inconvenienced. On 12/6/2013 2:31 PM, Erika Weliczko wrote: SB3000TL-US inverters. The concern is possible voltage that may lead the inverter to believe there is a ground fault because of fence connections. I wonder what the tolerable window of voltage of + or - to ground is for this unit before it cries GF. During a drizzle I had a little tingle while assembling EMT. I did not get a meter out, but it sorta felt like a 9V battery across your tongue. In the end even a little tingle is not really supposed to be there... Regards, Erika From: jay peltz [mailto:j...@asis.com] Sent: Friday, December 06, 2013 11:05 AM To: er...@repowersolutions.com<mailto:er...@repowersolutions.com>; RE-wrenches Subject: Re: [RE-wrenches] Electric fence, metal buildings, lightning protection systems Hi Erika, What seems to be the issue? And what equipment ( inverters ) are you using Jay Peltz power On Dec 6, 2013, at 5:57 AM, "Erika Weliczko" <er...@repowersolutions.com<mailto:er...@repowersolutions.com>> wrote: Anyone had to contend with electric fence installation (AC controller) using a ground rod (not main service) at remote farm building and messing with inverters? And perhaps causing other issues? Of course, this is a metal roof with a lightning protection system (i.e. bare braided copper on roof all the way to rod.) I think we need to redirect the electric fence wire to its own dedicated rods, away from the building that has solar. Insights are appreciated. Thanks, Erika _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org<mailto:RE-wrenches@lists.re-wrenches.org> Change email address & 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<http://www.re-wrenches.org/etiquette.htm> Check out participant bios: www.members.re-wrenches.org<http://www.members.re-wrenches.org> _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org<mailto:RE-wrenches@lists.re-wrenches.org> Change email address & 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<http://www.re-wrenches.org/etiquette.htm> Check out participant bios: www.members.re-wrenches.org<http://www.members.re-wrenches.org>
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