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Re: [TowerTalk] rebar grounding

To: "Ronald Anderson" <>
Subject: Re: [TowerTalk] rebar grounding
From: "R Verhoeven" <>
Reply-to: R Verhoeven <>
Date: Mon, 19 May 2008 17:44:27 +0200
List-post: <">>

I have done a couple of towers in my time now and found that the best way of 
ensuring reliable ground is to build a cage out of copper piping or rods 
insulating the copper outer cage from the steel rebar and concrete with 
thick plastic sheeting. When pouring the concrete the weight of it will push 
the copper cage into the surrounding ground.

The metal base of the tower shouldwhen be connected to the copper cage thick 
braided cable, your ground radials can also be connected to the copper cage. 
Another thing that you need to do is to "balance" your power outlet 
grounding system to the copper cage, again with thick braided cable.

Living in a very high lightning  area with my tower at 30m this system 
proved thus far successful. None of the towers that was fitted with the 
mentioned grounding system suffered from a strike nor was any equipment lost 
due to statics.

I would suggest not to trust the rebar alone in the concrete alone.



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