Standard: IEC 60034-9

ROTATING ELECTRICAL MACHINES - PART 9: NOISE LIMITS

This standard is available for individual purchase.

or unlock this standard with a subscription to IHS Standards Expert

IHS Standards Expert subscription, simplifies and expedites the process for finding and managing standards by giving you access to standards from over 370 standards developing organizations (SDOs).

FEATURES & BENEFITS
  • Maximize product development and R&D with direct access to over 1.6 million standards
  • Discover new markets: Identify unmet needs and discover next-generation technologies
  • Improve quality by leveraging consistent standards to meet customer and market requirements
  • Minimize risk: Mitigate liability and better understand compliance regulations
  • Boost efficiency: Speed up research, capture and reuse expertise
For additional product information, visit the IHS Standards Expert page.

HOW TO SUBSCRIBE
For more information or a custom quote, visit the IHS Contact Us page for regional contact information.
Scope:

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 rotating electrical machines in accordance with IEC 60034-1, having methods of cooling according to IEC 60034-6 and degrees of protection according to IEC 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);

• speed not greater than 3 750 min−1.

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 7 based on a standardized test environment.

NOTE 1 This standard recognizes the economic reason for the availability of standard noise-level machines for use in non-critical areas or for use with supplementary means of noise attenuation.

NOTE 2 Where sound power levels lower than those specified in Tables 1 or 2 are required, these should be agreed between the manufacturer and the purchaser, as special electrical, mechanical, or acoustical design may involve additional measures.

Organization: International Electrotechnical Commission
Document Number: iec 60034-9
Publish Date: 2007-07-01
Page Count: 36
Available Languages: EN,FR
DOD Adopted: NO
ANSI Approved: NO
Most Recent Revision: YES
Current Version: YES
Status: Active

Document History

Document # Change Type Update Date Revision Status
IEC 60034-9 Change Type: A1 Revision: 4.0 Status: INAC
IEC 60034-9 Change Type: A1 Update Date: 2007-03-01 Revision: 4.0 Status: INAC
IEC 60034-9 Change Type: Update Date: 2003-10-01 Revision: 4.0 Status: INAC
IEC 60034-9 Change Type: Update Date: 1997-08-01 Revision: 3.0 Status: INAC
IEC 60034-9 Change Type: A1 Revision: 2.0 Status: INAC
IEC 60034-9 Change Type: COR Revision: 2.0 Status: INAC
IEC 60034-9 Change Type: Revision: 2.0 Status: INAC
view more

Standards That Reference This Standard

Showing 10 of 73.

view more
Advertisement
Advertisement
Advertisement
Advertisement