Is it okay for me to use two 12 gauge (for hot and neutral) and one 14 gauge wire for ground? I think 14 gauge is easier to work with but I don't want to violate code.
I'm installing a dedicated circuit running EMT for a gas dryer.
I am sure it's against the code, but it would definitely carry the fault current long enough to pop the breaker, which is what it is there for. I'm sure there are deep reasons for like sized ground wires but it escapes me right now. Probably to make sure the circuit breaker operates properly in much larger applications.
I don't know code, but I would use 12/3 color coded for 220VAC. (Red, Black, and Green) Of course electricity doesn't care what color the wire is, but if it had to be worked on in the future, it might help.
Last edited by Terry; 12-07-2011 at 11:35 AM.
Actually, I was thinking that he could supply a 15A breaker and then get away with it, but the more that I think about it, if you increase the current carrying conductor (say for voltage drop, for example), I'm pretty sure the ground needs increased too. The EMT could be used if its continous and contains any appropriate bonding jumpers.