Why not just go to the first bolts on the tower leg and use that as ground
connection. And use a ground clamp also.
I think the Cadweld will blow a whole in the leg.
----- Original Message -----
From: "Gene Smar" <ersmar@verizon.net>
To: "Jeffrey Okamitsu" <jokamitsu@yahoo.com>; "Dubovsky, George"
<George.Dubovsky@andrew.com>; <Towertalk@contesting.com>
Sent: Wednesday, June 27, 2007 6:46 PM
Subject: Re: [TowerTalk] Cadwelding
> 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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