I have 3 circuits in my panel and the grounds are twisted together. When I removed that braided ground from the ground strip it causes a spark and I got a shock touching the wire and the box. I tried another ground wire from another circuit and that did not shock or spark. My question is there a problem in one of the 3 circuits where the ground is braided? Can I put a volt meter between the ground braid and the ground bar and turn of 1 of the 3 breakers at a time and find the one that is causing a problem? Can this be someone wired a outlet (or other) switching the black and white wire?
Any suggestions?