Revised
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
WITHDRAWN
IEC 60034-9:1997 ED3
99.60
Withdrawal effective
Oct 10, 2003
ABANDON
IEC 60034-9/AMD1 ED3
WITHDRAWN
IEC 60034-9:2003 ED4