Re: Ground rod question

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>" <davep-at-quik-dot-com>

> I'm having some new construction done on my house adjacent to my garage
> involving a new foundation, and this presents an opportunity to construct a
> better RF ground system than the single 8 foot ground rod I presently use.
> The footings are about 5 feet deep, so I was planning on having an "L"
> shape of 1/2" copper pipe, 5 feet vertical, down to a horizontal 10 foot
> segment laying beside the footing.  I also soldered on a 1 foot by 2 foot
> sheet of copper roof flashing to the base of the vertical segment.
 
> My question is, would it be better if the horizontal segment were cast
> within the concrete footing, 5 feet below the surface grade, or would it be
> better to just lay it in the dirt beside the footing before backfilling?
> If the latter, would there be a benefit to applying a healthy dose of rock
> salt about the pipes prior to backfilling?
	My _opinion_ (only that) is that either will work,

	with little to chose between them.

	Concrete, in mass, is fairly conductive.

	My impression is that 'salting' grounds is more
	a matter for poor grounds, than for general
	application.  Some references propose (or did, in
	the past) burying the electrode in _coke_
	(which may be hard to lay hands on....  Coal might
	work...)  I'll guess this is overkill also..

	best
	dwp

...the net of a million lies...
	Vernor Vinge
There are Many Web Sites which Say Many Things.
	-me