Time to reveal another secret.
Look up lightning systems in your Yellow Pages. Go to the local dealer
and ask if you cna buy three ground rods, each five feet long -- the type
of ground rod which has a threaded top. This permits you to buy
couplers, and make a 15 foot ground rod go down through the floor when
you have only an eight foot ceiling.
One such manufacturer is Thompson Lightning Protections, St. Paul, MN,
612/455-7661. In 1984, their sales engineer was WD0SCW, Fred C. Clarke.
Their dealer in EMA is Boston Lightning Rod Co., Dedham, MA 617/326-2807.
After drilling through the concrete, seal it with marine cement, which
expands and will seal up the hole tight, so no water will come up through
I have no financial interest in these guys, but I do love having a ground
rod right in my shack.
Fred Hopengarten, K1VR
Six Willarch Road; Lincoln, MA 01773-5105
617/259-0088; e-mail: firstname.lastname@example.org or email@example.com
On Wed, 16 Apr 1997 00:27:46 +0000 "Barry Kutner" <w2up@Op.Net> writes:
>On 15 Apr 97, Rich L. Boyd <rlboyd@CapAccess.org> wrote:
>> If you're building the house from scratch, consider having the
>> install ground rods below the basement concrete slab. I've heard of
>> being done. Sounds like a slick idea to me...don't know if there
>Another thing not to forget - If you have your builder install the
>ground rods before pouring the basement slab, make sure you know
>where he is going to put basement hardware. I had the builder put in
>a few ground rods for me, then when the appliances were brought in,
>my proposed ham shack was now occupied by the oil tank and heater!
>I wound up just hack sawing the ground rods and relocating the shack.
>BTW, with a hammer drill and a masonry bit, it's pretty easy to drill
>thru the slab and bang in the rods yourself, but you may have to go
>with a 4 or 6 ft rod if you have a low ceiling.
>Barry Kutner, W2UP Internet: firstname.lastname@example.org
>Newtown, PA FRC alternate: email@example.com
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