There are two 220v circuits: a 30 amp for the air conditioner, and a 50 amp for the dryer. I don't think that using the air conditioner circuit would be a good idea, especially in the summer. But, the dryer circuit looks like a good possibility - assuming that we don't run the dryer at the same time as the table saw. I was really surprised to find that the dryer circuit was 50 amps - how much power does a dryer really pull?
So the question is, is it OK to branch off of the dryer circuit and run it out to the shop? Would it be OK to run a table saw on a 50 amp 220v circuit?