That's exactly why I proposed the j-box in the attic. I agree with that assessment. As for the combined EGC/GEC, NM cable will not be sized adequately for a combined conductor.
*Jason Szumlanski** * *Fafco Solar* On Thu, Oct 25, 2012 at 11:37 AM, Glenn Burt <glenn.b...@glbcc.com> wrote: > Soladeck on the rooftop places it in an environment that is considered > ‘wet’.**** > > I don’t think Romex is listed for use in a wet environment.**** > > ** ** > > This would force you to use the proposed jbox in the attic for the > transition location.**** > > I also understood that you could combine the EGC and GEC into a single > conductor as long as it is continuous or irreversibly spliced, as part of > the ’08 code.**** > > ** ** > > -Glenn Burt**** > > ** ** > > *From:* re-wrenches-boun...@lists.re-wrenches.org [mailto: > re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Jason Szumlanski > *Sent:* Thursday, October 25, 2012 9:13 AM > *To:* RE-wrenches > *Subject:* [RE-wrenches] Enphase and Romex**** > > ** ** > > I'm sure this has been covered, but I could not find it in the archives.** > ** > > ** ** > > We are considering using Romex in the attic for the first time. My plan > was to use the new Enphase coupler to connect the trunk cable to Type > TC-ER, enter a Soladeck passthrough box on the roof into a junction box in > the attic where I would make the transition to 10/3 Romex. I'm hung up on > the GEC going back to the service panel. Any suggestions?**** > > ** ** > > By the way, we are on NEC 2008, and in most cases there is also a > requirement for an additional grounding electrode per NEC 690.47(D) (that > shouldn't really relate to my issue).**** > > *Jason Szumlanski** ***** > > *Fafco Solar***** >
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