[BC] Protecting Steel and Copperweld Grounds in AM Ground Systems - Part 2

[Paul Smith W4KNX]

Do you have to be careful about not contaminating well water with salt with
this method?

Paul Smith
W4KNX
Sarasota, FL

----- Original Message ----- 
From: "Danny Ray Boyer" <drboyer at centralcom.com>
To: <broadcast at radiolists.net>
Sent: Sunday, December 24, 2006 12:56 PM
Subject: [BC] Protecting Steel and Copperweld Grounds in AM Ground Systems -
Part 2


> FYI, the cathodic protection process is shown on pages 34 and 36 on
> the http://www.epa.gov/oilspill/pdfs/fitzgerald_04.pdf web site.
>
> By the way, my main method of obtaining a "much better than normal"
> ground for lightning protection at towers that we erect is have a drilling
rig
> "core" me a 6" (or so) diameter hole in the ground close of the base
> of the tower.
> This hole to be somewhere between 25 to 50 feet deep.  In fact, the
> deeper - the better.
>
> I order a long life anode from one of the anode vendors with enough
> 2/0 wire installed in it to reach to the bottom of the hole.
>
> I strip off the insulation from the 2/0 and drop the anode in the
> hole, pour in some salt and cokebreeze.
>
> Back fill the hole with a mixture of dirt and other conductive material.
> Cadweld the 2/0 to the base of the tower.
>
> In effect, I now have the benefit of the anode (which will slowly
> leach into the surrounding soil for 20 years or so) and the 2/0
> uninsulated wire for 50 feet or so.
>
> This is not to be the exclusive grounding method for the structure -
> but is to be added to your normal grounding arrangement.
>
> In my opinion and after 30 years of doing this, it works well.  My
> experience reflects very little damage to equipment over the years at
> the tower that we have done
> this to due to lighting strikes.
>
> Danny Ray Boyer
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