Hi Kirpal, We do go to Sch 80 PVC into the concrete to a rigid steel (RMC) sweep 90, then up the pole with the RMC to the disco. We run Sch 40 PVC underground, unless we are going under a road or through a lot of rock, then it's back to the Sch 80. We also run a #4 bare solid copper next to the conduit, more earth contact the better, it is nice to set the ground rod in the vault too. Then you tie off to it with future arrays also, easily.
Chris Worcester Solar Wind Works NABCEP Certified PV Installer Office 530-582-4503 Cell 530-448-9692 Fax 530-582-4603 www.solarwindworks.com ch...@solarwindworks.com From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Kirpal Khalsa Sent: Tuesday, October 08, 2013 2:08 PM To: RE-wrenches Subject: Re: [RE-wrenches] question about pole mount interconnection Chris....i like your design with the vaults! Future proof! Do you make your transition to rigid metal conduit in the concrete? Seems solid! Thanks for sharing... Sunny Regards, Kirpal Khalsa NABCEP Certified PV Installation Professional Renewable Energy Systems www.oregonsolarworks.com 541-218-0201 m 541-592-3958 o On Tue, Oct 8, 2013 at 10:24 AM, Chris Worcester <ch...@solarwindworks.com> wrote: Hi Ron, We do a lot of pole mounts, last one was 12' to the bottom of modules, deep snow country. Typically in a system where there are or has the potential to expand into more than the original pole mounted array we run a couple of main PVC conduits underground to a concrete vault, like a C-9, C-24, or maybe even a C-30 vault. From this vault we distribute the conduits to each pole mount, or in a larger field like the 8 poles you're mentioning we might go into a second vault closer to the other end of the field, then branch out to each pole from it too. We use PVC underground, Rigid metal through the concrete and up the pole. Hope this helps. Chris Worcester Solar Wind Works NABCEP Certified PV Installer Office 530-582-4503 Cell 530-448-9692 Fax 530-582-4603 www.solarwindworks.com ch...@solarwindworks.com
_______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address & 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
