Reasonable inspector, here? You have no idea. The plans examiner is the first link in the process here in Idaho, he is; by the book, crossing t’s & dotting I’s and has a very strict & narrow interpretation of the code. That said he is very helpful and a nice guy. It’s an Idaho thing.
---------------------------------------------------------------------------- Dana Orzel Great Solar Works, Inc. C - 208.721.7003 d...@solarwork.com Idaho Contractor - # 028765 Idaho PV # 028374 NABCEP # 051112-136 <http://www.solarwork.biz> www.solarwork.biz "Responsible Technologies for Responsible People since 1988" P Please consider the environment before printing this email. From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of cwarfel Sent: Friday, April 20, 2018 9:23 AM To: re-wrenches@lists.re-wrenches.org Subject: Re: [RE-wrenches] Looking for insulated #6 bare standoff I just got back from being out of the office for a week+ and just read a few of these. I hope this is not redundant. 6AWG is the size that meets several tests for exposed installations. By that I mean that it is not protected. If you are running the array EGC exposed, you would use at least 6AWG depending upon the size of the overcurrent protection device towards the charge controller/array disconnect. 250.120(C) and T250.122. We have run into the conductor covering rating problem too. #4 can be color coded so you can use black conductor. A reasonable inspector should allow this for 6 since a lot of the non black coverings are not holding up as well to sunlight as black. I think NEC2017 takes this into consideration and allows you to color code because of the superior performance of black coverings. Chris On 4/20/2018 9:00 AM, Dana wrote: That makes two of us that would like to understand, why #6? I think it dates to early grounding with grid tie systems. I remember back to 20+ years ago when the code required that the EGC was the size of the largest conductor which with 24 volt inverters was OOOO. ---------------------------------------------------------------------------- Dana Orzel Great Solar Works, Inc. C - 208.721.7003 d...@solarwork.com <mailto:d...@solarwork.com> Idaho Contractor - # 028765 Idaho PV # 028374 NABCEP # 051112-136 www.solarwork.biz <http://www.solarwork.biz> "Responsible Technologies for Responsible People since 1988" P Please consider the environment before printing this email. -----Original Message----- From: RE-wrenches <mailto:re-wrenches-boun...@lists.re-wrenches.org> <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of Dave Angelini Offgrid Solar Sent: Thursday, April 19, 2018 3:57 PM To: RE-wrenches <mailto:re-wrenches@lists.re-wrenches.org> <re-wrenches@lists.re-wrenches.org> Subject: Re: [RE-wrenches] Looking for insulated #6 bare standoff Dana, I understand the need to use #6 in exposed places on the earth. I have had inspectors require the same wire size that is used to the battery. I have had them require the same size as the array wiring. I have never seen them do what they are doing to you so thanks for the info.... Be well! --Dave The bare #8 is an EGC for #10 USE PV wire on the tracker to the array mounted combiner box. ---------------------------------------------------------------------------- Dana Orzel Great Solar Works, Inc. C - 208.721.7003 d...@solarwork.com <mailto:d...@solarwork.com> Idaho Contractor - # 028765 Idaho PV # 028374 NABCEP # 051112-136 www.solarwork.biz <http://www.solarwork.biz> "Responsible Technologies for Responsible People since 1988" ï Please consider the environment before printing this email. -----Original Message----- From: RE-wrenches <mailto:re-wrenches-boun...@lists.re-wrenches.org> <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of Hilton Dier Sent: Thursday, April 19, 2018 3:39 PM To: re-wrenches@lists.re-wrenches.org <mailto:re-wrenches@lists.re-wrenches.org> Subject: [RE-wrenches] Looking for insulated #6 bare standoff Would #8 meet code? I thought that exposed ground wire had to be #6 minimum. Hilton Dier III Renewable Energy Design Missisquoi River Hydro LLC _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org <mailto:RE-wrenches@lists.re-wrenches.org> Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist .html List rules & etiquette: www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> Check out or update participant bios: www.members.re-wrenches.org <http://www.members.re-wrenches.org> _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org <mailto:RE-wrenches@lists.re-wrenches.org> Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist .html List rules & etiquette: www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> Check out or update participant bios: www.members.re-wrenches.org <http://www.members.re-wrenches.org> Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ e-mail offgridso...@sti.net <mailto:offgridso...@sti.net> text 209 813 0060 _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org <mailto:RE-wrenches@lists.re-wrenches.org> Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> Check out or update participant bios: www.members.re-wrenches.org <http://www.members.re-wrenches.org> _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org <mailto:RE-wrenches@lists.re-wrenches.org> Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> Check out or update participant bios: www.members.re-wrenches.org <http://www.members.re-wrenches.org> -- Christopher Warfel, PE ENTECH Engineering, Inc. 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