Hi all,
I'm at the end of my (limited) 120V knowledge. I'm likely calling an electrician, but I would like to see if someone here can help out.
On several different circuits, (I have not checked all) I get 0V neutral to ground, 120V hot to neutral, and 12V (up to 22V on different circuits) on hot to ground.
I think it should be 0V N to G, and 120V to both H to N, and H to G.
Currently plumbers are wrecking our house because we're having all the 60 year old piping replaced from cast iron and copper to Pex. Has a ground been disconnected somewhere? I know grounding to plumbing used to be a thing.
The reason this came up is when I was water blasting parts this afternoon I was getting tingles in my arms where I touched the box. Never happened before. I berkeleying hate getting shocked so I stopped to investigate.
Thanks
Yes, you are correct, Hot to Ground should be 120V. It is/was fairly common to ground to copper piping. If there was only one grounding point near where water supply comes in from street, they should be able to properly reconnect it. If the grounding connection(s) was/were located somewhere in the middle of the house, you may need to get an electrician to run a new grounding wire from your box, if plumber won't do it for free. They should've noticed grounding points when making estimate, but if it's not in the contract, they probably won't want to do anything for you.
Sounds like it was bonded to the water pipes. You will probably have to drive 2 grounds rods outside and run a new ground wire of #6 copper or larger.
Awesome! Just wanted to know that I might be on the right track.
Thanks!
In reply to Shadeux :
if you need electrical supplies dm me, i can hook you up cheap. even shipped
