Check out the following website:
http://www.lightningrods.com/catalog1_rods.html
About half way down the page it lists a copper plate for this purpose.
This site also has lots of other useful lightning/grounding hardware.
73, Stew K3ND
--- On Wed, 6/16/10, Michael Baker <k7dd@cox.net> wrote:
> From: Michael Baker <k7dd@cox.net>
> Subject: Re: [TowerTalk] Shack ground
> To: "'W2RU - Bud Hippisley'" <W2RU@frontiernet.net>, "'Tom Anderson'"
> <andersonww5l@sbcglobal.net>
> Cc: w4lde@numail.org, "'TowerTalk'" <towertalk@contesting.com>
> Date: Wednesday, June 16, 2010, 7:41 PM
> Relocation is also not always
> practical nor is it inexpensive. Professional
> Electricians don't come cheap and moving an underground
> service entrance is
> very involved and sometimes simply can't be done due to
> local codes and the
> location of the service main.
> My house is at the end of a street and the service entrance
> is opposite my
> shack just outside my attached garage opposite the end of
> the street. I
> would hazard a guess and say that maybe $4000 might cover
> it due to
> trenching, new copper entry wire, a new entry panel and all
> the hardware,
> local build fees and inspections, new concrete and
> landscaping as well as a
> new sidewalk and driveway.
> A single piece of 4/0 cable run from one end to the other
> would be cheaper
> even with several ground rods and eutectic bonding.
> Even if you include the
> trencher, having the driveway concrete sawed and filled
> afterwards, new bit
> of concrete work to fix the cuts, etc is couldn't cost even
> half of that.
>
> Speaking of low impedance grounds, a flat sheet of copper
> with the
> equivalent mil volume as a wire will have a much lower
> impedance. 4" copper
> sheet that is .01" thick works wonderful even on mountain
> top sites. It just
> makes attaching it to the ground rods a bit trickier to
> deal with. ;>)
>
> Michael Baker K7DD
> k7dd@cox.net
>
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