The Code back then was a little vague back then and I am not sure it has been improved.
First, there needs to be a DC disconnect just before or just after penetrating the building shell. Most AHJ allowed us to place this disconnect in the attic within reach of the access door. Once we needed to place the DC disconnect on the roof and we were able to get away with a fused combiner box. Another time we actually needed to put a 600V 3-pole fused disco on the roof. Second, and this is really an obscure point. Only conduit, raceways and the like (not cable runs) were allowed in the attic space and walls. So FMC is okay but MC is not. It is an issue of unfortunate terminology. Third, you need to label the conduit Caution Solar Circuit, even in the walls. Finally, where the conduit passes thru studs, you need protection plates on the studs to prevent screws or nails piercing the conduit. Thats my story and Im sticking to it. -Peter Peter T. Parrish, Ph.D., President California Solar Engineering, Inc. 820 Cynthia Ave., Los Angeles, CA 90065 CA Lic. 854779, NABCEP Cert. 031806-26 [email protected] Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885 ________________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Keith Cronin Sent: Thursday, April 07, 2011 3:05 PM To: RE-Wrenches Subject: [RE-wrenches] PVC running through the house Hi folks Was wondering- does anyone know back in 2005, if it was permissible to run DC conductors from the roof, through the home to the inverter location, inside the house, per the NEC? Thanks Keith Cronin _______________________________________________ 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
