IEC 60034-9 Ed. 4.1 b:2007

Specifies test methods for the determination of sound power level of rotating electrical machines. Provides maximum A-weighted sound power levels for factory acceptance testing of rotating electrical machines. To be used in conjunction with IEC 60034-1, IEC 60034-5 and IEC 60034-6. This consolidated version consists of the fourth edition (2003), and its amendment 1 (2007). Therefore, no need to order amendment in addition to this publication.