I was asked to run a 120v 20a circuit to a detached garage overhead. What is the best way to do this. Checked into using aluminium aerial triplex and using some porcelain insulators and small weather heads. Then use splicer reducers to connect the THWN to the aerial cable. But it seems like a lot of trouble to go overhead. Any other suggestions? I wanted to go underground but this guy is dead set on going with overhead.