Any recommendations for guarding of ground mount arrays?

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ArcNSpark

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Location
Coventry, RI
Our company sticks mostly with roof-mounted systems on single family houses, but we're branching out and doing a higher number of ground mounts. We've had them fenced in to meet the requirements of 690.33(B) (live electrical components [including PV wires beneath the array] shall be guarded) before, but it seems that there should be a product available that would attach directly to the underside of the modules.

Anyone have any recommendations?

Thanks in advance!
 
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Garrison

Member
Location
Chicago, IL
Expanded aluminum is one option, but since it is conductive you may have challenges with bonding depending on the inspector. Another good option is a product called Solar Scrim. It's a little pricey, but non-conductive and less labor to install than most custom solutions. Works best with two rows of modules in portrait and with junction boxes facing each other.

http://www.solarscrim.com/

Good luck.
 
Mark A.

Mark A.

Member
Location
Napa, CA, US
I think the biggest problem you'll have with ground mounted arrays, is the number of ladders it takes to build them.

From: http://forums.mikeholt.com/showthread.php?t=186919&p=1861854#post1861854

attachment.php
 
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Anode

Member
Location
Washington, USA
ArcNSpark said:
Our company sticks mostly with roof-mounted systems on single family houses, but we're branching out and doing a higher number of ground mounts. We've had them fenced in to meet the requirements of 690.33(B) (live electrical components [including PV wires beneath the array] shall be guarded) before, but it seems that there should be a product available that would attach directly to the underside of the modules.

Anyone have any recommendations?

Thanks in advance!
Click to expand...

We use simple corrugated metal panels to guard the conductors and such. I am not sure how they fasten it to the structure. But I know it is just the Home Depot corrugated panels you can pick off the shelf.
 
A

ArcNSpark

Member
Location
Coventry, RI
Garrison said:
Expanded aluminum is one option, but since it is conductive you may have challenges with bonding depending on the inspector. Another good option is a product called Solar Scrim. It's a little pricey, but non-conductive and less labor to install than most custom solutions. Works best with two rows of modules in portrait and with junction boxes facing each other.

http://www.solarscrim.com/

Good luck.
Click to expand...

This is exactly what I was looking for. Thanks for the recommendation!
 
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