Ground fault [RE-wrenches]

[matthew tritt]

Allan,

Groan..... You would have to bring this up! Plywood sure is nice to fasten
things to, easy to cut, strong,
adds structural strength to shaky buildings and, believe it or not, requires
a hell of a lot of heat to get to burn. Mounting to an aluminum plate is
actually not as good because it is such a damned great conductor, both of
heat and current. Fire fighters will seldom venture onto the roof of a
building with metal rafters. Think about it. Also, if someone leans on a
piece of metal with unwanted and unexpected juice available in it, the
benefits of a non-conductive material become instantly apparent.

Perhaps the best mounting system is a metal plate fastened to the wall with
insulating stand-offs - ceramic or glass. Asbestos? Ha ha.

Matt
----- Original Message -----
From: "Allan Sindelar" <allan at positiveenergysolar.com>
To: <RE-wrenches at topica.com>
Sent: Thursday, November 14, 2002 4:35 PM
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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