IEC 60034-9 : 4.1
IEC 60034-9 : 4.1
ROTATING ELECTRICAL MACHINES - PART 9: NOISE LIMITS
International Electrotechnical Committee
ROTATING ELECTRICAL MACHINES - PART 9: NOISE LIMITS
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Methods of measurement
5 Test conditions
5.1 Machine mounting
5.1.1 Precautions
5.1.2 Resilient mounting
5.1.3 Rigid mounting
5.2 Test operating conditions
6 Sound power level limits
7 Determination of noise increments caused by converter
supply
8 Determination of sound pressure level
9 Declaration and verification of sound power values
Describes test methods for the determination of sound power level of rotating electrical machines and also specifies maximum A-weighted sound power levels for factory acceptance testing of network-supplied, rotating electrical machines in accordance with lEC 60034-1, having methods of cooling according to lEC 60034-6 and degrees of protection according to lEC 60034-5.
Document Type | Standard |
Status | Current |
Publisher | International Electrotechnical Committee |
Committee | TC 2 |