Just had a home inspection completed and one of the things advised to be corrected is the wiring running to an AC unit. In the breaker panel it's hooked up to a 30-amp double pole breaker with #12 wire.
Inspector notes that #10 wire should be used for 30-amp circuits so that the wire does not melt before the breaker can do its job in an over-current situation. This makes sense to me, but I'm thrown off by the double-pole configuration. Since the load is split over 2 conductors, does it really need to use such heavy gauge wire?