Thanks Allan, I agree the PVC is better for corrosion, but if I sweep up with PVC I will be running DC in PVC inside the house for however many inches it takes to convert to EMT...which is a part I'm not sure about.
On Sunday, October 30, 2016, Allan Sindelar <al...@sindelarsolar.com> wrote: > Adam, > Over time earth can be corrosive to metal, which is why good practice here > is to use PVC below grade and transition to EMT once the conduit is exposed > above grade. I suspect that concrete would have similar effects. In New > Mexico, state Code requires Schedule 80 if PVC is used above grade, I > suspect primarily because of the intensity of our high-elevation sun, so by > that logic you'd use a Sch. 80 90 sweep to exit the slab, then transition. > Allan > > *Allan Sindelar* > al...@sindelarsolar.com > <javascript:_e(%7B%7D,'cvml','al...@sindelarsolar.com');> > NABCEP Certified PV Installation Professional > NABCEP Certified Technical Sales Professional > New Mexico EE98J Journeyman Electrician > Founder (Retired), Positive Energy, Inc. > *505 780-2738 cell* > > > On 10/29/2016 6:50 PM, AE Solar wrote: > > Wrenches, > I have a project where the DC run is going through the wall system of the > house, down through the slab, out the building underground and into another > building. My preference would be to run PVC in the slab and then stub out > of it with a metal 90. > I'm unclear if that is allowed. Is conduit in the slab considered to be > inside the house and therefore should be metal? Thanks for any thoughts. > Adam > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > <javascript:_e(%7B%7D,'cvml','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 > > Check out or update participant bios:www.members.re-wrenches.org > > > -- Adam Katzman Autonomous Energies PO Box 1245 Kingston, NY 12402 www.autonomousenergies.com (518) 567-1468
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