IEC 60034-9:1990
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Rotating electrical machines. Part 9: Noise limits.
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
09-03-2020
31-05-1990
Specifies maximum permissible A-weighted sound power levels for rotating electrical machines complying with IEC 34-1, with methods of cooling according to IEC 34-6 and degrees of protection according to IEC 34-5.
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