Hi all,
I have a question about NEC regarding a situation I discovered in my house. I was adding a new circuit for a shop light in my garage when I came across some 12/3 Romex that was powering some fixtures in the ADU that is attached to it. There are two lights in the bathroom of the ADU, one vanity light and one fan/light combo. They were running from a run of 12/3 romex, but wired in such a way that each had its own hot cable (one black, one red) and were sharing a common ground and neutral. Each had a 15A breaker back in the box. My first question is, is this allowable under NEC? Since it seems overkill to have a whole 15A breaker for each light, I was wondering if I could just run each hot (black and red) from the same 15A breaker? Or should I just rip it all out and run them in series on some 12/2 Romex? I have a little quick reference book about NEC but it doesn't mention anything about this.
Big 8' shop lights turned out great though!
Thanks!
-JDS