IEC 60034-9:2003+A1:2007 en

Roterende elektrische machines - Deel 9: Geluidgrenzen


Over deze norm

Status Definitief
Aantal pagina's 32
Commissie Elektrische machines
Gepubliceerd op 01-03-2007
Taal Engels
This part of IEC 60034: - specifies test methods for the determination of sound power level of rotating electrical machines; - 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, and having the following characteristics: - standard design, either a.c. or d.c., without additional special electrical, mechanical, or acoustical modifications intended to reduce the sound power level; - rated output from 1 kW (or kVA) up to and including 5 500 kW (or kVA); - rated speed not greater than 3 750 min-1. - provides guidance for the determination of noise levels for a.c. cage induction motors supplied by converters. Excluded are a.c. motors supplied by converters. For these conditions see IEC 60034-17 for guidance. The object of this standard is to determine maximum A-weighted sound power levels, LWA in decibels, dB, for airborne noise emitted by rotating electrical machines of standard design, as a function of power, speed and load, and to specify the method of measurement and the test conditions appropriate for the determination of the sound power level of the machines to provide a standardized evaluation of machine noise up to the maximum specified sound power levels. This standard does not provide correction for the existence of tonal characteristics. Sound pressure levels at a distance from the machine may be required in some applications, such as hearing protection programs. Information is provided on such a procedure in Clause 8 based on a standardized test environment.


ICS-code 29.160.01
Nederlandse titel Roterende elektrische machines - Deel 9: Geluidgrenzen
Engelse titel Rotating electrical machines - Part 9: Noise limits



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