Minimum allowable values of energy efficiency and energy efficiency grades for small and medium three-phase asynchronous motors
全国能源基础与管理标准化技术委员会(SAC/TC 20)
本标准规定了中小型三相异步电动机(以下简称：电动机)的能效等级、能效限定值、目标能效限定值、节能评价值和试验方法。
本标准适用于1 000 V以下的电压，50 Hz三相交流电源供电，额定功率在0.75 kW~375 kW范围内，极数为2极、4极和6极，单速封闭自扇冷式、N设计、连续工作制的一般用途电动机或一般用途防爆电动机。
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