Grounding conductors can be aluminum. They cannot be in earth contact or terminate within 18 inches of earth.
Three pieces of rebar are not required either. The total length just needs to be 20 foot or more.
Grounding conductors can be aluminum. They cannot be in earth contact or terminate within 18 inches of earth.
Three pieces of rebar are not required either. The total length just needs to be 20 foot or more.