On Wed, 9 Jun 2004 20:42:33 -0500, "Crazy George"
wrote:

|Dave:
|
|An exposed copper to galvanized steel connection will quickly lose the zinc,
|and the steel will rust profusely. So, whatever approach you use, put lots
|of weatherproofing over the joint. Personally, I use thin stainless steel
|between the two dissimilar metals along with Penetrox and then weatherproof
|with roofing tar.

Same approach here, without the tar. On my Rohn 45 I replaced the
smaller bolts at the bottom with stainless and used double
nuts/washers to attach the copper ground wiring. Of course, it seldom
rains here and the low humidity helps in the corrosion department.

Purists will refer to the galvanic tables and go from there, but this
works for me.

Maybe Barry Ornitz will answer this for you. If not Google him.