IEC 60034-9:1997

2003-10-10 /Anulada

Specifies maximum permissible A-weighted sound power levels for rotating electrical machines complying with IEC 60034-1, having methods of cooling according to IEC 60034-6 and degrees of protection according to IEC 60034-5 and having a rated output from 1kW up to 5500kW with a speed limited to 3750 r/mn

• Es anulada por: IEC 60034-9:2003
• Anula a: IEC 60034-9:1990
• Anula a: IEC 60034-9:1990/AMD1:1995