From tiny hysteresis motors that drive electric clocks to huge synchronous motors that develop more than 50,000 hp, the alternating current (AC) motor has become an indispensable part of everyday life ...

Article 430, the largest Article in the NEC, is commonly understood to be the “motor” Article. But if motors are a part of air-conditioning (A/C) and refrigeration equipment, they also fall under Art.

Mini-splits are the talk of the town where I live in California, largely because of the likelihood that gas appliances may not be available for much longer here. A mini-split heat pump system is ...