DD-IEC-TS-61400-14-2005.pdf
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1、DRAFT FOR DEVELOPMENT DD IEC/TS 61400-14:2005 Wind turbines Part 14: Declaration of apparent sound power level and tonality values ICS 27.180 ? Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:31:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD IEC/TS 61400-14
2、:2005 This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 13 January 2006 BSI 13 January 2006 ISBN 0 580 46492 X National foreword This Draft for Development reproduces verbatim IEC/TS 61400-14:2005. This publication is not to be regarded as
3、 a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature because it relates to an IEC Technical Specification. It should be applied on this provisional basis, so that information and experience of its practical application may be obta
4、ined. Comments arising from the use of this Draft for Development are requested so that UK experience can be reported to the international organization responsible for the Technical Specification. A review of this publication will be initiated not later than 3 years after its publication by the inte
5、rnational organization so that a decision can be taken on its status at the end of its 3-year life. Notification of the start of the review period will be made in an announcement in the appropriate issue of Update Standards. According to the replies received by the end of the review period, the resp
6、onsible BSI Committee will decide whether to support the conversion into an international standard, to extend the life of the Technical Specification for another 3 years or to withdraw it. Comments should be sent in writing to the Secretary of BSI Technical Committee PEL/88, Windturbine systems, at
7、British Standards House, 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possible, an appropriate revision of the text. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The
8、British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. Thi
9、s publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Summary of pages This document comprises a front cover, an inside front cover, the IEC/TS title page, pages 2 to 9 and a back cover. The BSI copyright notice displ
10、ayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:31:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI TECHNICAL SPECIFICATION IEC TS 61400-
11、14 First edition 2005-03 Wind turbines Part 14: Declaration of apparent sound power level and tonality values Reference number IEC/TS 61400-14:2005(E) Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:31:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD IEC/TS 6
12、1400-14:2005 2 CONTENTS INTRODUCTION.3 1 Scope 4 2 Normative references .4 3 Terms and definitions .4 4 General5 5 Declaration.5 5.1 Declaration of apparent sound power level for a wind turbine5 5.2 Declaration of tonality6 6 Information to be reported.6 Annex A (informative) Method of calculating a
13、pparent sound power level to another hub height7 Annex B (informative) Influence of turbine and site characteristics on the acoustical performance.9 Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:31:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 DD IEC/TS 6
14、1400-14:2005 INTRODUCTION Information on the apparent sound power level and tonality of wind turbines is needed by planners, manufacturers and authorities. At present, wind turbine noise specifications tend to be based on measurement results from a single turbine of a particular make and model, and
15、these are then taken to be representative of these turbines as a whole. Clearly, this is unlikely to be the case, as there will be individual variation between different turbines. The intention of this technical specification is to determine declared noise emission values from a sample of turbines o
16、f the same type. The declaration will increase the reliability of wind farm planning and facilitate the comparison of apparent sound power levels and tonality values of different types of wind turbines. Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:31:15 GM
17、T+00:00 2006, Uncontrolled Copy, (c) BSI DD IEC/TS 61400-14:2005 4 WIND TURBINES Part 14: Declaration of apparent sound power level and tonality values 1 Scope This part of IEC 61400 gives guidelines for declaring the apparent sound power level and tonality of a batch of wind turbines. The measureme
18、nt procedures for apparent sound power level and tonality are defined in IEC 61400-11. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of
19、 the referenced document (including any amendments) applies. IEC 61400-11:2002, Wind turbines Part 11: Acoustic noise measurement techniques ISO 4871:1996, Acoustics Declaration and verification of noise emission values of machinery and equipment ISO 7574 (all parts), Acoustics Statistical methods f
20、or determining and verifying stated noise emission values of machinery and equipment 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 standard deviation of reproducibility R standard deviation of noise emission values obtained under reproducib
21、ility conditions, i.e. the repeated application of the same noise emission measurement method on the same wind turbine at different times and under different conditions (different wind directions, different personnel, different apparatus) 3.2 standard deviation of production P standard deviation of
22、measured noise emission values obtained at different turbines from a batch, using the same noise emission measurement method under repeatability conditions (same operators, same apparatus) 3.3 total standard deviation t t is defined as 2 R 2 P t += (1) 3.4 batch wind turbines of the same make and mo
23、del with identical specifications constitute a batch. A batch is characterized by the same declared apparent sound power level and tonality. The range of components included in a declaration is specified in the related manufacturers statement. Licensed Copy: London South Bank University, London Sout
24、h Bank University, Tue Dec 12 03:31:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 NOTE Since slight changes in the turbine design affect the apparent sound power level and the tonality, Annex B contains information on the influence of turbine parameters on measured acoustic characteristics. 4 Gene
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