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Re: [TowerTalk] Grounding, Lightning & corona discharge

To: Pete Smith <n4zr@contesting.com>, towertalk@contesting.com
Subject: Re: [TowerTalk] Grounding, Lightning & corona discharge
From: Dan Bookwalter <n8dcj@yahoo.com>
Reply-to: N8DCJ@YAHOO.COM
Date: Thu, 29 Jul 2004 06:49:22 -0700 (PDT)
List-post: <mailto:towertalk@contesting.com>
"I would have to trench in a perimeter ground, per
Polyphaser 
recommendations, before anything else would begin to
make sense."

this is exactly what i have to do , the main service
entrance (phone and tv too) are on the other end of
the house from where the coax etc... enters the house
so i have to bury some copper to tie the 3 rods at the
shack and the ground rod at the service entrance, i
also need to replace the original service ground rod
as i think its only a 4 footer that is sticking about
18" or so out of the ground. then i have to get the
ground rods at the tower tied into all the others. i
saw Tom mentioned something about MOV's and shunts at
the telephone entrance. at my house the wires come
from the pole to a little box with screw terminals and
then into the house, no MOV's etc.. at all, so i guess
i have to look into that too...

Dan N8DCJ


--- Pete Smith <n4zr@contesting.com> wrote:

> At 09:03 AM 7/29/2004, Tom Rauch wrote:
> >A single ground wire from the shunt protection is
> clamped to
> >the power line ground.
> >
> >This is the national code.
> 
> 
> Illustrative of the difficulties of doing the
> single-point ground thing 
> properly with an old house, our telephone and cable
> TV connections are 180 
> degrees around the house from the AC power entrance,
> grounded to a rod at 
> that point, so there is undoubtedly a fair amount of
> resistance between the 
> two grounds.  Just to further complicate things, our
> telephones are in 
> parallel to the telco box rather than in series.
> 
> I would have to trench in a perimeter ground, per
> Polyphaser 
> recommendations, before anything else would begin to
> make sense.
> 
> 
> 73, Pete N4ZR
> The World HF Contest Station Database
> was updated on June 5, 2004
> 2728 contest stations at
> www.pvrc.org/WCSD/WCSDsearch.htm  
> 
> _______________________________________________
> 
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> 
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See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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