In the past, as long as the copper water pipe made contact w/ the earth for 10 feet or more it could be used as a grounding electrode. Here in Indianapolis, the plumbers are starting to use Pex pipe (plastic)for the incoming water supply.
My question is, Why can't I put a 10' piece of bare 3/0 copper in a 2' trench to act as the grounding electrode? Why does the ground ring have to circle the entire building?
My question is, Why can't I put a 10' piece of bare 3/0 copper in a 2' trench to act as the grounding electrode? Why does the ground ring have to circle the entire building?