ground rods in concrete/earth [RE-wrenches]

matthew tritt solarone at charter.net
Sat Apr 26 21:32:27 PDT 2003


David,

Oooh. That hurts. Rubbing valence shells in an open wound!

Matt T
----- Original Message -----
From: "David Blecker" <blecker at seventhgenergy.org>
To: <RE-wrenches at topica.com>
Sent: Saturday, April 26, 2003 4:35 PM
Subject: Re: ground rods in concrete/earth [RE-wrenches]


> Matt,
>
> I think the idea with salt is that it provides an abundance of ions to
> increase conductivity as opposed to retaining moisture.  But hey, I had a
> crush on my chem professor and never really paid attention to valence
shell
> structure.  Dare I say, take my opinion with a grain of salt?
>
> Dave
>
> At 12:43 PM 4/26/2003, you wrote:
> >Steve,
> >
> >This is the same idea as the mineral salts-filled grounding tube I
> >mentioned. The main reason ground rods lose conductivity over time is
loss
> >of moisture in the soil. The salts supposedly maintain conductivity by
> >keeping the ground around the ground (ground round?) wetter and less
> >resistant to current. Wouldn't you think that the soil under a nice, big
> >concrete pad would dry out over time and, therefore, become a less
effective
> >place to ground equipment?
> >
> >I know that in many communications installations it's common to drive
> >multiple rods around tower legs, and not under a slab.
> >
> >Matt T
>
> ----------------------------------------------------------
> David Blecker, P.E., Director
> Seventh Generation Energy Systems
> 608-424-1870 (ph)  424-1810 (fax)
>
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