Hello all,
First post, I really learn alot from this forum, thanks.
I ran into this senario and was scratching my head.
SE has a #4 awg apparently tied into the footing, (wire goes down thru the slab anyway). But I saw this at the water main. Main is Poly-E with copper supply throughout.
Ground wire (green wir in picture) runs back to the panel.
How is this functional?
Thanks for the help.
Mike P.
Baltimore

Attached Images

4 ground @ water main.jpg (37.5 KB, 143 views)