The way I see it they would theoretically
be making it unnecessary
to have anodic/cathodic protection. The towers are
galvanized and by using similar metals for the ground
system the dissimilar metals problem theoretically goes
away. In actuallity it doesn't of course because you can
have corrosion issues with a guy rod between the part which
is in the air, in the soil, and in the concrete pedestal. You can
have problems if the rod goes through soil layers with different pH's
(this happened to Dave K6LL).
73
Bob AA0CY
----------
From: Eric Gustafson[SMTP:n7cl@mmsi.com]
Sent: Monday, November 22, 1999 10:28 AM
To: towertalk@contesting.com; aa0cy@nwrain.com
Subject: Re: [TowerTalk] Steel Ground Rods
>From: Bob Wanderer <aa0cy@nwrain.com>
To: <towertalk@contesting.com>
>Date: Mon, 22 Nov 1999 08:22:23 -0800
>
>In acidic soil,
SNIP...
>Interestingly enough, the driving force behind this revision is
>a company called Anchor Guard which makes anodic/cathodic
>protection devices for when dissimilar metals are an issue. It
>sounds to me like they're cutting their own throat, but maybe I
>am not cognizant of all the aspects.
Or _maybe_ they are not cutting their own throat but they are
having the standards organization do their marketing for them.
If the standard makes their protection system necessary....
73, Eric N7CL
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