grounding plate vs. rod? [RE-wrenches]

matthew tritt solarone at charter.net
Wed Dec 18 09:59:19 PST 2002


Scott,

Unfortunately they're probably right! That's the same method recommended by
a consulting firm for a good ground in the rocky soil at a radio transmitter
site I'm doing a wind project for in California. The only difference is they
called for a plate about three times the size of the one you have to hassle
with.

Matt
----- Original Message -----
From: "Scott Russell" <scottr at lotusenergy.com>
To: <RE-wrenches at topica.com>
Sent: Tuesday, December 17, 2002 11:12 PM
Subject: grounding plate vs. rod? [RE-wrenches]


> Hello, all.
>
> I'm installing PV in Nepal for a Kathmandu-based company. They typically
use
> copper grounding plates (18"x18") here rather than the grounding rods I'm
> familiar with back in the good ol' USA. Our Nepali techs claim that the
> local soil composition necessitates taking extra steps to increase its
> conductivity. That is, using the larger surface area of a plate as opposed
> to a rod and burying it parallel to the surface, two or more meters deep
> sandwiched between two layers each of salt and coal. Does this sound
> reasonable/plausible? As you might imagine, driving a grounding rod is
much
> more appealing to me than (hand) digging a 24-inch diameter hole, 7+ feet
> deep.
>
> Thanks in advance for you insights.
>
> Scott Russell
> Lotus Energy, Kathmandu
>
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