[TowerTalk] attaching #4 bare to aluminum tower legs

[john at kk9a.com]

In Aruba, I have seen tremendous corrosion to aluminum when it is in contact 
with stainless steel.

John KK9A  /P40A


To: stevejax at gmail.com
Subject: Re: [TowerTalk] attaching #4 bare to aluminum tower legs
From: WD0M
Date: Wed, 12 Sep 2007 10:14:50 -0600
List-post: <mailto:towertalk at contesting.com>

My recommendation would be to use a small sheet of stainless steel so
you don't have any interaction between the aluminum and copper.  Put the
sheet around the leg, then attach the copper wire to it with a U-bolt.
That's how I did it on my US Towers TX-455, and there has been no corrosion.

Joe Hannigan - WDØM
Pagosa Springs, CO

http://home.centurytel.net/WD0M
http://pagosarocks.com




Steve Jax wrote:
> I am looking for ideas to attach #4 bare solid copper to my Aluma tower
> legs.  I currently have about 18 inches of wire running up each leg and
> attached with 4 SS hose clamps spaced evenly up the 18 inches.  Each wire
> runs directly to a grounding rod that are all interconnected.   I have
> thought about wrapping each leg and wire with some thin copper sheet and
> then clamp to help gain better connectivity.  Any other ideas?  I would
> prefer not to drill into the legs and want to be careful not to crush or
> compromise the structural integrity of the aluminum tower leg.
>
> -Steve, N4SJJ