Re: Grounding to conduit in basement? Old house
At the very minimum, install a #6 copper wire from the fuse box (it should be connected to both the neutral and the frame of the box) to two separate ground rods driven 8 feet into the ground, 6 feet apart, outside the foundation of the house. Run another #6 copper wire from the fuse box to a grounding clamp attached to the metal cold water pipe. Run a jumper between the hot and cold pipes by the water heater. If you have gas piping, that also needs to be grounded similarly.
Then, any circuits you want to ground must be grounded in the fuse box. I don't believe code allows you to connect your GFI directly to the water pipe for grounding.
But, I could be wrong. I don't have a current code book. You might want to pay an electrician for a half hour of advice.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.