When it comes to lightning protection more is better. If the 1/0 copper wire
was bare in the trench it would dissipate a lightning strike much better. This
is what we do on houses all the time.
John J. Nistico
911 Electric Inc.
> Date: Tue, 22 Jan 2013 17:37:34 -0500
> From: firstname.lastname@example.org
> To: email@example.com
> CC: firstname.lastname@example.org
> Subject: Re: [TowerTalk] bonding to AC power box or inside fuse panel?
> Dick, I want to thank you for this post. I have been trying to find an
> answer to this question for years, but no one seemed to have a definitive
> answer. Can you tell me where I can find the article you referred to?
> My tower is going to be 175 feet from the shack and I wasn't looking
> forward to dropping all that dough on grounding wire!
> 73, Vince K4JC
> > -----Original Message-----
> >"Another example is bonding the tower ground to the single-point ground at
> the house. My first tower farm is 265' from the house. Being new to tower
> construction, I laid 265 feet of 1/0 ground wire in the trench running
> between the two locations in order to bond the ground systems. This was not
> cheap, to say the least (though it was before the big run up in copper
> prices.) Later, I read an article by Polyphaser that said if the ground
> systems are more than 75' apart it does no good to bond them -- the wire
> inductance will be too high to make an effective connection. With this in
> mind, when I installed my second tower system in a different location 220'
> from the house, I did not run a separate ground wire. The Polyphaser
> argument made sense to me. Also, there are two runs of 1-5/8" hardline in
> the trench, and the gigantic copper shields on those babies surely provide
> a lower inductance path between the tower and house than a 1/0 wire would
> -- if, in fact, any wire has low enough inductance at that length to be
> 73, Dick WC1M"
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