In Aruba, I have seen tremendous corrosion to aluminum when it is in contact
with stainless steel.
John KK9A /P40A
Subject: Re: [TowerTalk] attaching #4 bare to aluminum tower legs
Date: Wed, 12 Sep 2007 10:14:50 -0600
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
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
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