Ok, I’ve just built a detached workshop. I am going to have an electrician run a sub-panel to it since code will only allow me to run 1 circuit to a detached garage and the sub-panel is more than I want to deal with. I will do the internal wiring. I have three questions. 1. I plan to run two 120 volt, 20 amp circuits for two 75 watt double florescent lights and five outlets. Lights on one circuit and outlets on the other. I will run things like a fan, buffer, 12” drill press, and a band saw on the outlets. For this I plan to use #12/2 Romex. 2. I will run one 220 volt, 20 amp circuit for a metal grinder. The grinder has a 7.5 amp 220 volt single phase motor. For this I plan to use 10/3 Romex. 3. Third question. I am going to leave the inside un-finished (open studs). Is it ok to run Romex in the open studs?

Hi, I'm going to install an ARC FAULT Circuit Breaker for a bedroom I am building. My question is...does the same rule apply for any other circuit (ie. 12 outlets/lights on a circuit) or do I have to only use this for the bedroom outlets only? I have the Ontario Electrical Code Simplified book, but it doesn't say if I can use it for the other rooms as well (so I don't have to use one extra circuit breaker slot). Thanks