[TowerTalk] Ground wire impedance

[BenT]

Has anyone mentioned Aluminum wire? How does aluminum fare buried? Does 
it get corroded more quickly in the ground than copper?

With the price of copper, it would be nice to have aluminum as an 
alternative. While the conductivity is not quite as high, it's still 
pretty good. And you could probably put down more than enough aluminum 
to get the same resistance and still pay less than copper.

BenT