ground wire

Our barn is 500' line of sight and 700' by road away from our house. The barn has power but I noticed the ground is not connected. Now I think this panel, by today's standards, should have been connected with a 4 wire system that should have included L1, L2, N, and a ground. However this is an...

I am in the process of upgrading my lighting in my garage/shop (house built in 76). I took the old fixture out and noticed the wiring in the box didn’t include a ground wire or screw. The wiring also doesn’t run through conduit so there’s no ground there. Thoughts on how to properly ground the...

Working with a neighbor on a basement remodel, we discovered a 10 ga ground wire coiled up in a cavity in the ceiling. The other end goes back to the main service panel. My neighbor recalls that at one time this may have been attached to the brass waste pipe that led out of the house to the...