Playing with MC connectors and USE-2 [RE-wrenches]

[Bill Brooks]

Mark,

Still looking for a picture of a piece of USE-2 cable eaten by a critter. I
have actually heard of rodents gnawing on the aluminum frame and leaving the
conductor alone. The stuff has a nasty compound in it for the express
purpose of keeping critters away. I'm willing to change my view on this, but
I think the whole critter issue is a red herring.

Now USE-2 has to be properly supported which is open to the inspector's
disgression. If it is on a ground mounted system below 8', it will require
careful tucking of all conductors in the frames so that the wire can't be a
hand hold for someone climbing under the array. This may be very difficult
or impossible in some cases. Great reason for a patio cover that is at least
8' tall. However, conduit needs support near any fitting or box and rarely
gets it in a PV array.

Bill.

-----Original Message-----
From: Mark Byington [mailto:markbyington at sbcglobal.net]
Sent: Tuesday, March 16, 2004 8:17 AM
To: RE-wrenches at topica.com
Subject: Re: Playing with MC connectors and USE-2 [RE-wrenches]




"It's a no-brainer on a rooftop, but what about trackers, poletops and
ground
mounted arrays?  Are folks still using j-box panels and LT flex? "

We always use J-boxes and Liquiseal flex on ground mount systems, because
rodents and other critters will chew through MC cables over time.
Regards
_______________
Mark Byington
President
Cobalt Power Systems, Inc.
Tel 650-948-9574   Fax 650-948-9573   Cell 415-298-1947
markb at cobaltpower.com   www.cobaltpower.com


[Non-text portions of this message have been removed]

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