Had this in the emergency section, but not much reply: thanks
So had an old Wadsworth panel today, there are obviously some defects, but my main question is about the bonding. The pic doesn’t show the whole thing, but there is a service panel (with only the 100 amp shut off breaker) next to this subpanel, and behind the service panel is the meter on the other side of the wall. The meter has the grounding conductor to a rod.
Since this is a 3 wire feed, the grounds and neutrals are on the same bus. BUT there is a metallic path to the meter, correct? (The connector ring between the two panels). Which means it is already bonded to the meter… Does this change the rules? Shouldn’t this sub panel now need to have the neutrals isolated, even though it is a 3 wire?
I also see a scorch mark on the main service neutral…