本标准涉及密封（气密和半气密型）电动机压缩机及其保护和控制系统（如有）的安全性，这些压缩机拟用于家用和类似用途的设备，并符合适用于此类设备的标准。它适用于在正常使用中可能出现的最恶劣条件下单独测试的电机压缩机，单相电机压缩机的额定电压不超过250 V，其他电机压缩机的额定电压不超过480 V。

This standard deals with the safety of sealed (hermetic and semi-hermetic type) motor-compressors, their protection and control systems, if any, which are intended for use in equipment for household and similar purposes and which conform with the standards applicable to such equipment. It applies to motor-compressors tested separately, under the most severe conditions that may be expected to occur in normal use, their rated voltage being not more than 250 V for single-phase motor-compressors and 480 V for other motor-compressors.