Measurement of airborne noise emitted by rotating electrical machines and the noise limits—Part 3:Noise limits
IDT IEC 60034-9:2007
全国旋转电机标准化技术委员会(SAC/TC 26)
本部分的目的在于对标准设计的电机，规定以功率、转速、负载为特征的电机发射空气噪声最大声功率级L WA，以dB(A)为单位；并规定了测定电机声功率级的测试方法和试验条件，提供了电机噪声是否达到所规定的最大声功率级的考核标准。本部分不提供对纯音特性存在的修正。
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