[RE-wrenches] Conduit in a slab

[August Goers]

We run PVC underground but typically transition to RMC starting at the 90
bend underground, up out of the ground, and to a box or conduit body where
we then transition to EMT.



August

Luminalt



*From:* RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] *On
Behalf Of *AE Solar
*Sent:* Sunday, October 30, 2016 4:25 AM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] Conduit in a slab



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 <allan at 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*
allan at sindelarsolar.com
<javascript:_e(%7B%7D,'cvml','allan at 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 at lists.re-wrenches.org
<javascript:_e(%7B%7D,'cvml','RE-wrenches at 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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20161031/15557943/attachment-0002.html>