So I did a bunch of reading and research through this forum, the NEC, and various websites about and electrical system being wired to a detached garage, or in the case of this house, the garage is where the service panel is and the distributions are in the garage and the house.
That being said, I’m going to try and decipher as much as I can. There will be images of everything also. If anyone would be so kind as so point in my the right direction to understand more, or quiz me to learn more, that would be greatly appreciated. So here we go!
- the house is fed by a service drop. The meter feeds the first in a serious of panels, where the main disconnect is. 100AMP service.
- that first panel feeds these next two panels which are, I’m assuming, other disconnects, as the house is wired for a welder and an air compressor.
- these disconnects also feed the panel on the bottom, a 20amp breaker.
- the first panel below the meter is just a box where the multiple slices are.
From what I read, each of these panels where wire is ran through, 1 have to be bonded together and 2 ground and neutral separated.
The distribution panel on the inside of the house has to be grounded to a grounding rod or the water supply system to which it was grounded to the water supply. Since it’s grounded to the water supply, the ground and neutrals can be on the same bus, from what I read, or at least to my understanding.
My questions are:
- Are those other two disconnects extra disconnects?
- Am I correct that distribution panel on the inside of the house can have the neutrals and grounds on the same bus since it’s grounded to the water supply?
- There was another set of cables coming from the power line to the house, but was wired into a telephone and internet box. That being said, after 2008, any home/detached building that has power ran to both, with an extra metallic line, has to be a 4-wire system and not a 3-wire.
Extra: I do see various issues in almost every panel, but feel free to write one to see if I missed it. Dirty panels, missing legends, sheathing cut far back, improper bonding, wrong screws to hold panel etc…