I have a duplex with 2 - 100 amp panels mounted adjacently in one basement.
I want to install a sub panel 30 feet away to give tenant access to their own panel.
Original main panels are square-d 1976ish.
I was planning on installing a new 100amp disconnect to replace the main, then use a main lug subpanel 30 feet away.
1. Would the original main breaker be fine as the disconnect? (old 1976). I will be able to drag all the original main panel circuits to the new subpanel, but that will leave all my circuit breaker knockouts open and the main buss exposed.
2. I would like to run the sub feed wire under the joists in conduit rather than drill (old home/butchered joists) What size copper or aluminum wire size do I use? Conduit?
I want to install a sub panel 30 feet away to give tenant access to their own panel.
Original main panels are square-d 1976ish.
I was planning on installing a new 100amp disconnect to replace the main, then use a main lug subpanel 30 feet away.
1. Would the original main breaker be fine as the disconnect? (old 1976). I will be able to drag all the original main panel circuits to the new subpanel, but that will leave all my circuit breaker knockouts open and the main buss exposed.
2. I would like to run the sub feed wire under the joists in conduit rather than drill (old home/butchered joists) What size copper or aluminum wire size do I use? Conduit?