I'm replacing my flooring, when I removed one of the baseboards it revealed a electrical wire nailed to the floor. What really has me worried now is there WAS 1 area where the previous owner has a nail going through the electrical wire. "WAS" is because they had the baseboard caulked to the floor and some must have gotten on to the electrical wire as I was trying to removed the baseboard by pulling it up I guess I pulled the wire through the nail. Now there is a hole in the wire. This wire is attached to a electrical outlet for my fridge and it is working fine. I only lived in this house for 5 years and it's been like this until I discovered it. Do I have to be worried about it? I was planning on just taping up the damaged area.
I opened it up, good news the nail went in between the ground and hot wire, insulation on hot wire has a little scratch, but wire not exposed. But the ground wire where the nail touched turned green. Is it safe?