These requirements cover motor-operated appliances to be employed in accordance with the National Electrical Code@ NFPA 70.These requirements also cover small utilization appliances@ such as vibrators in which motion of an operating part is produced by electrical means.These requirements do not cover appliances rated more than 600 V; nor do they cover appliances involving universal motors rated more than 250 V.These requirements do not cover equipment intended particularly for the control of electric motors; separator motors; nor electric clocks@ fans@ clothes dryers@ washing machines@ hair dryers@ tools@ waste disposers@ dishwashers@ office appliances and business equipment@ refrigerators@ air conditioners@ vending and amusement machines@ hair clippers and shavers@ snow movers@ automotive and garage equipment@ or other motor-operated appliances that are covered by individual requirements.An appliance that utilizes some other source of energy@ such as gas or steam@ in addition to electric energy will be investigated under these requirements and under such additional requirements as are applicable to the appliance under consideration.