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British & International Standards
BS 4999 : Rotating Machines
Noise and Vibration Levels



Standard Number BS 4999:Part 109:1987
 
Title General requirements for rotating electrical machines. Specification for noise levels, including test methods
 
Abstract Specifies methods of measuring and classifying the acoustic noise emitted under free field conditions. Methods for correcting for presence of pure tones. Upper limits of dB(A) sound power given for machines rated up to 16 MW.
 
Status Superseded, Withdrawn
 
Publication Date 27 February 1987
 
Withdrawn Date 15 September 1994
 
Cross References BS 2475, BS 4999:Part 105, BS 5969, ISO/R 1680
 
Replaced By BS EN 60034-9:1994
 
Replaces BS 4999:Part 51:1973
 
International Relationships IEC 60034-9 Not Equivalent Descriptors Rotating electric machines, Electric machines, Noise (environmental), Sound intensity, Acoustic measurement, Acoustic testing, Free-field rooms, Testing conditions, Mathematical calculations, Error correction, Grades (quality)
 
ICS 17.140.20
ICS 29.160.01


Standard Number BS 4999-142:1987
 
Title General requirements for rotating electrical machines. Specification for mechanical performance: vibration
 
Abstract Test and measurement conditions and limits of vibration for machines with centre heights 80 mm to 400 mm. Recommended method of test for smaller machines and limits of vibration for larger machines.
 
Status Superseded, Withdrawn
 
Publication Date 27 February 1987
 
Withdrawn Date 17 February 2006
 
Cross References BS 4675:Part 2, BS 4999:Part 143
 
Replaced By BS EN 60034-14:2004
 
Replaces BS 4999:Part 50:1978
 
International Relationships IEC 60034-14 Not Equivalent, ISO 2373 Not Equivalent
 
Amended By AMD6542
 
Descriptors Rotating electric machines, Electric machines, Vibration, Vibration measurement, Vibration testing, Seatings, Performance, Grades (quality), Velocity, Shaft centre heights
 
ICS 17.160
ICS 29.160.01


Noise and Vibration Measurements

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