I found this out just the other night at a continuing education course. If you have more than 2 circuits feeding a detached garage or structure you have to re-establish the ground by driving a ground rod. I didn't ask what section of the code it came from (I guess I should have) but has anyone else ever heard of this ? If so, do you happen to know where in the code it is referenced ?
Thanks,
Phil,
Gold Star Electric
New Jersey