sub panels

I need some help on this one. I work out of Seattle and have been doing a 4 story custom house remodel. There is a existing 200 amp service in the garage that's connected to the basement. There is also a guest area room in the basement along with its own bathroom, laundry room and kitchenette...

I am bidding on a couple of panel changes. - The first panel is fed from a 200A disconnect; the feeders are run in metal conduit with no equipment ground conductor. It seems to me that there might be an exception that allows this in an existing installation. (I want to leave the feeders alone in...

Hello, Im an electrical contractor out of Southern California, we are wiring a new 6000 sq ft custom home. Sub panel locations are limited, to me sub panels in certain locations has always been questionable. Are sub panels allowed to be installed in a walk in closet given it has all the...

Quick question, if I may. I want to add a sub panel and use it as a transfer switch. If I am running number six AWG to a 30 A receptacle (PB 30), which I am doing so the customer can easily upgrade her generator when she decides to do that, can I protect the number six with a 60 A breaker, or do...

I have to install a 200A panel for a job. Is a 250A breaker big enough for this job? Can i install 40, 20- 30 A single pole breakers safely?