Rick, I don't see that applying to Kelly's question.
He said that the AHJ is not requiring the separate array grounding in his case. The discussion has to do with the number and sizing of conductors run in various parts of the system in order to accomplish various "grounding" requirements. Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530) 401-8024 www.berkeleysolar.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Richard L Ratico Sent: Thursday, June 04, 2009 6:29 PM To: [email protected] Subject: Re: [RE-wrenches] FW: 690.47D (revisited) Kelly, If I understand your situation, the AHJ is allowing you to use the existing grounding electrode/s as the (new for 2008) required array electrode, rather than adding an additional electrode closer to the array. He does want an additional GROUNDING ELECTRODE CONDUCTOR, sized appropriately, and, of course, run separately from the array circuit conductors, directly from the array to the existing electrode. If this is the case, it makes sense. You dont want to depend on your EQUIPMENT GROUNDING CONDUCTOR, run with your circuit conductors, to carry energy from a lightning strike, for instance. Take that energy (renewable but undesired) to EARTH / GROUND as directly as possible. Hope this helps. Dick Solarwind Electric Bradford, VT _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] 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
