DC Wiring in Building (Was 600VDC switches) [RE-wrenches]

[Jeffery Wolfe, Global Resource Options]

Bill,

My point is not about the wiring types and enclosures, I know I can make
that work. BUT, I've now brought a "service" into the building, without a
disconnect switch, in a cable tray, which even if enclosed, is still not a
solid conduit. I'm just wondering how an aggressive inspector would view the
presence of this "unprotected" wiring inside, no matter what the wire type.

Jeff

-----Original Message-----
From: Bill Brooks [mailto:billb at endecon.com]
Sent: Wednesday, April 16, 2003 5:49 PM
To: RE-wrenches at topica.com
Subject: RE: DC Wiring in Building (Was 600VDC switches) [RE-wrenches]



Jeff,

Requiring a cable tray and using tray cable are two different things.
However, you raise a very good question. XHHW-2 and RHW-2 is flame retardant
and USE-2 is allowed to be installed in a cable tray. So, if you get a cable
that has both USE-2 rating and either XHHW-2 or RHW-2 rating, it would work
fine. I have seen such wire but I am unsure what UniSolar
recommends--anybody know?

Bill.

-----Original Message-----
From: Jeffery Wolfe, Global Resource Options
[mailto:jeff at globalresourceoptions.com]
Sent: Wednesday, April 16, 2003 3:37 PM
To: RE-wrenches at topica.com
Subject: RE: DC Wiring in Building (Was 600VDC switches) [RE-wrenches]


Intermodule wiring that occurs outside. What about the UniSolar shingle
product, which REQUIRES a cable tray inside to do the inter-module wiring?

Sounds like that system CANNOT meet the NEC at this point. Yes? No?

Jeff

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