[RE-wrenches] question about pole mount interconnection

[Chris Worcester]

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

chris at solarwindworks.com

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at 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 <chris at 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
chris at solarwindworks.com



 

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