Ground fault [RE-wrenches]

[Bob Maynard, Energy Outfitters]

Allan,

Back in my days of installing PBX systems, plywood was always the choice for
mounting.  The City of Portland always required fire rated back mounting.
We were able to use a special fire rated plywood.  It looked just like
plywood and was easy to screw into.  Don't know if its still available, back
then it was about 4 times the price of regular.  I did some tests on scraps
with a propane torch and it would char but not catch fire.  Who knows what
potentially toxic substance it may have been made with!

Bob Maynard
Energy Outfitters

-----Original Message-----
From: Allan Sindelar [mailto:allan at positiveenergysolar.com]
Sent: Thursday, November 14, 2002 4:36 PM
To: RE-wrenches at topica.com
Subject: Re: Ground fault [RE-wrenches]



----- Original Message ----- From: "Christopher Freitas -
 > Mounting all power electronics on a fire-proof surface is always a good
> idea IMHO.

Agreed! And we have certainly broken that good idea many times. We have used
plywood as a substrate panel for shop preassembly of small systems, and we
often mount to plywood or similar when we do upgrades to existing systems,
such as a SB50 upgrade. It's just so darn easy to mount to. Outback panels
(or previously, Power Panels) with steel backplates are a good approach for
large, new systems, but I would sure like to know what other Wrenches have
found to take the place of plywood, or for fire protection as per this
thread, on existing systems.
Allan @+E

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