[RE-wrenches] Braided grounding wire

[Wind-sun.com]

The problem is not stranded, it is fine stranded, such as braid or welding 
cable. The Navy banned the use of it ages ago for mainly that reason and 
went to flexible grounding copper sheet straps, but of course corrosion is a 
much bigger issue there.

Braid tends to "wick" water, and we have seen it corrode into a crumbly 
green mass of copper oxide in a matter of 2-3 years in wet/damp locations. 
Probably OK for indoor use, but we prefer to avoid it completely.

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Northern Arizona Wind & Sun - Electricity From The Sun
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----- Original Message ----- 
From: "Walt Ratterman" <wratterman at sunenergypower.com>
To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
Sent: Friday, August 22, 2008 8:55 AM
Subject: Re: [RE-wrenches] Braided grounding wire


> When you get into the larger sizes - such sd what ised for ground loops 
> around buildings the ground wire is stranded.
>
> Braided wire is used for flexible connections such as expansion fittings. 
> Movement over time tends to break solid wire.