Does this mean the pole has to be galvanized? or depainted? I know you can not use coated rebar Darryl
--- On Sat, 3/13/10, William Miller <will...@millersolar.com> wrote: > From: William Miller <will...@millersolar.com> > Subject: Re: [RE-wrenches] rebar v/s fiber > To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org> > Date: Saturday, March 13, 2010, 3:53 PM > > > Ray: > > > We've been using this interpretation for years. > > > William Miller > > > > > At 01:26 PM 3/13/2010, you wrote: > > Actually my read > of 2008 code > should allow the pole to qualify as the grounding > electrode: > > 690.47 (D) allows the mounting structure to be the > electrode if it > meets 250.52. > > 250.52(A.7) plate electrode says you need at least 2 sq. ft > of 1/4" > steel plate. > > A 6" diam pipe 4 ft in the ground, will have 6.8 sq. > ft of surface > area...... > > A 4" diam pole will have 4.7 sq ft of surface > area..... > > Anybody see a flaw in this logic? > > > R. Walters > > r...@solarray.com > > Solar Engineer > > > > > -----Inline Attachment Follows----- > > _______________________________________________ > 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
