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  • BSI
    BS EN 61400-11:2013+A1:2018 Wind turbines - Acoustic noise measurement techniques
    Edition: 2019
    $538.63
    / user per year

Description of BS EN 61400-11:2013+A1:2018 2019

This part of IEC 61400 presents measurement procedures that enable noise emissions of a wind turbine to be characterised. This involves using measurement methods appropriate to noise emission assessment at locations close to the machine, in order to avoid errors due to sound propagation, but far away enough to allow for the finite source size. The procedures described are different in some respects from those that would be adopted for noise assessment in community noise studies. They are intended to facilitate characterisation of wind turbine noise with respect to a range of wind speeds and directions. Standardisation of measurement procedures will also facilitate comparisons between different wind turbines.

The procedures present methodologies that will enable the noise emissions of a single wind turbine to be characterised in a consistent and accurate manner. These procedures include the following:

  • location of acoustic measurement positions;

  • requirements for the acquisition of acoustic, meteorological, and associated wind turbine operational data;

  • analysis of the data obtained and the content for the data report; and

  • definition of specific acoustic emission parameters, and associated descriptors which are used for making environmental assessments.

This International Standard is not restricted to wind turbines of a particular size or type. The procedures described in this standard allow for the thorough description of the noise emission from a wind turbine. A method for small wind turbines is described in Annex F.



Standard NumberBS EN 61400-11:2013+A1:2018
TitleWind turbines - Acoustic noise measurement techniques
StatusDefinitive
Publication Date2019-11-04
ReplacesBS EN 61400-11:2003
Identical National Standard OfEN 61400-11:2013/A1:2018, IEC 61400-11:2012/AMD1:2018/COR1:2019, IEC 61400-11:2012/AMD1:2018/COR1:2019
CorrectsBS EN 61400-11:2013+A1:2018
DescriptorsVelocity, Noise (environmental), Sound intensity, Tape recorders, Microphones, Wind turbines, Low frequencies, Wind-electric power stations, Acoustic measurement, Meteorological measurement, Turbines, Wind power, Electric generators, Winds
ICS27.180 Wind turbine energy systems, 17.140.20 Noise emitted by machines and equipment
CommitteePEL/88
ISBN978 0 539 06898 6
PublisherBSI
Pages72

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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