Jeff:
I agree with George - R25/45/55/65 is probably too thin to Cadweld to
directly. Such high temps could weaken the metal at the place of welding and
down she comes.
When I worked as an engineer at my local electric utility company, our
construction crews would Cadweld ground cables (2/0 or larger galvanized steel
wires) to substation structural steel. However, these members were inch thick
slabs of solid steel so the heat of Cadwelding didn't harm them. I believe
(but don't have numbers to back this up) that solid steel towers ought to be
capable of taking a direct Cadweld joint.
BOTTOM LINE: DON'T DO IT.
73 de
Gene Smar AD3F
From: "Dubovsky, George" <George.Dubovsky@andrew.com>
Date: 2007/06/27 Wed PM 03:45:29 CDT
To: Jeffrey Okamitsu <jokamitsu@yahoo.com>, Towertalk@contesting.com
Subject: Re: [TowerTalk] Cadwelding
It's a good idea if the leg wall is thick enough (and I don't know the
definition of thick enough)- I've seen it often on commercial towers.
BUT, I'm pretty sure Rohn 25/45 is way too thin for this.
73,
geo - n4ua
> -----Original Message-----
> From: towertalk-bounces@contesting.com [mailto:towertalk-
> bounces@contesting.com] On Behalf Of Jeffrey Okamitsu
> Sent: Wednesday, June 27, 2007 4:11 PM
> To: Towertalk@contesting.com
> Subject: [TowerTalk] Cadwelding
>
> Anyone ever try cadwelding a ground wire directly to a
> tower leg?
>
> Is this even a good idea?
>
> 73.
>
> Jeff, W3KL
>
>
>
>
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