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1、a Date: 19 January 2009 Origin: European Latest date for receipt of comments: 30 April 2009 Project no.: 2008/03600 Responsible committee: RAE/1 Railway applications Interested committees: EH/1/2 Title: Draft BS EN 15892 Railway applications - Noise Emission - Measurement of noise inside drivers cab
2、s Supersession information: If this document is published as a standard, the UK implementation of it will supersede NONE and partially supersede. NONE If you are aware of a current national standard which may be affected, please notify the secretary (contact details below). WARNING: THIS IS A DRAFT
3、AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 30 April 2009. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. No acknowledgement will normally be sent. See overleaf for informatio
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6、presented on the committees referenced above may be obtained from the responsible committee secretary. Cross-references The British Standards which implement International or European publications referred to in this draft may be found via the British Standards Online Service on the BSI web site htt
7、p:/. Direct tel: 020 7904 7970 Responsible Committee Secretary: Ms L Delaney (BSI) Evergreen House;160 Euston Road;London;NW1 2DX;GB E-mail: louise.delaneyrssb.co.uk Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 3
8、6 Version 8.0 DPC: 09/30192362 DC Licensed Copy: London South Bank University, South Bank University, 02/02/2009 05:54, Uncontrolled Copy, (c) BSI b Introduction This draft standard is based on European discussions in which the UK has taken an active part. Your comments on this draft are welcome and
9、 will assist in the preparation of the consequent British Standard. Comment is particularly welcome on national, legislative or similar deviations that may be necessary. Even if this draft standard is not approved by the UK, if it receives the necessary support in Europe, the UK will be obliged to p
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16、trademark of Microsoft Corporation. Licensed Copy: London South Bank University, South Bank University, 02/02/2009 05:54, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM DRAFT prEN 15892 January 2009 ICS 17.140.30; 45.060.10 English Version Railway applications - Noise E
17、mission - Measurement of noise inside drivers cabs Bahnanwendungen - Geruschemission - Geruschmessung im Fhrerraum This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 256. If this draft becomes a European Standard, CEN members
18、are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. This draft European Standard was established by CEN in three official versions (English, French, German). A version
19、 in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denma
20、rk, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Recipients of this draft are invited to submit, with their comment
21、s, notification of any relevant patent rights of which they are aware and to provide supporting documentation. Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and shall not be referred to as a European Standard. EU
22、ROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. prEN 15892:2009: E Licensed Co
23、py: London South Bank University, South Bank University, 02/02/2009 05:54, Uncontrolled Copy, (c) BSI prEN 15892:2009 (E) 2 Contents Page Foreword3 1 Scope 3 2 Normative references3 3 Terms and definitions .4 4 Measurement quantities5 5 Instrumentation6 6 Test conditions 6 6.1 General6 6.2 Internal
24、and external measurement of external warning horn level.6 6.3 Vehicle at maximum speed.6 6.4 Track for maximum speed testing .7 7 Test procedure.7 7.1 General7 7.2 Tests when sounding the external warning horn.7 7.3 Maximum speed.8 8 Test report8 Annex A (informative) Guidance on the quantification
25、of track quality for maximum speed testing 10 Bibliography12 Licensed Copy: London South Bank University, South Bank University, 02/02/2009 05:54, Uncontrolled Copy, (c) BSI prEN 15892:2009 (E) 3 Foreword This document (prEN 15892:2009) has been prepared by Technical Committee CEN/TC 256 “Railway ap
26、plications”, the secretariat of which is held by DIN. This document is currently submitted to the CEN Enquiry. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EC Directive. For rel
27、ationship with EC Directive, see informative Annex ZA, which is an integral part of this document. 1 Scope This European standard specifies a type test method to measure noise levels inside the driving cabs of railway vehicles for assessing compliance with the relevant requirements of the Convention
28、al Rail Noise Technical Specification for Interoperability (TSI) and the High-Speed Rolling Stock TSI. This method is applicable to: The measurement of noise resulting from the sounding of external warning horns when the vehicle is stationary; the measurement of noise while the vehicle is running. T
29、he method is not applicable to: The measurement of the noise from internal and external audible devices other than external warning horns; routine monitoring of the noise exposure of train crew. The test procedures specified in this European Standard are of engineering grade (grade 2) with a precisi
30、on of 2 dB, which is the preferred method for noise declaration purposes, as defined in EN ISO 12001. 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 la
31、test edition of the referenced document (including any amendments) applies. EN 60942, Electroacoustics Sound calibrators (IEC 60942:2003) EN 61672-1, Electroacoustics Sound level meters Part 1: Specifications (IEC 61672-1:2002) EN ISO 12001, Acoustics Noise emitted by machinery and equipment Rules f
32、or the drafting and presentation of a noise test code (ISO 12001:1996) Licensed Copy: London South Bank University, South Bank University, 02/02/2009 05:54, Uncontrolled Copy, (c) BSI prEN 15892:2009 (E) 4 EN ISO/IEC 17025, General requirements for the competence of test and calibration laboratories
33、 EN 15610, Railway applications Noise emission Rail roughness measurement related to rolling stock noise generation 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 acoustic roughness r(x) variation of the height of the rail running s
34、urface associated with rolling noise excitation, expressed as a function of distance x along the rail 3.2 acoustic roughness level Lr level expressed in decibels, related to 1.0 m, given by the following equation = 2 0 2 r r lg10 RMS r L (1) where Lr acoustic roughness level in dB rRMS root mean squ
35、are roughness in m r0 reference roughness, r0 = 1,0 m NOTE This definition applies to values measured either as a wavelength spectrum or in a particular wavelength band. 3.3 acoustic roughness spectrum )(r amplitude of the acoustic roughness level expressed as a function of the wavelength over a ran
36、ge of at least 0,003 m to 0,10 m 3.4 sound pressure p(t) root mean square (RMS) value of a fluctuating pressure superimposed on the static atmospheric pressure measured over a certain time period, expressed in Pa 3.5 sound pressure level Lp(t) level given by the equation: )/)(lg(10)( 2 0 2 ptptLp= (
37、2) where Licensed Copy: London South Bank University, South Bank University, 02/02/2009 05:54, Uncontrolled Copy, (c) BSI prEN 15892:2009 (E) 5 Lp(t) sound pressure level, in dB; p(t) RMS sound pressure, in Pa; p0 = reference sound pressure; p0 = 20 Pa. 3.6 A-weighted sound pressure level LpA sound
38、pressure level obtained by using the frequency weighting A, see EN 61672-1, given by the following equation: )/)(lg(10 2 0 2 ptpL ApA = (3) where LpA A-weighted sound pressure level in dB; pA(t) root mean square (RMS) A-weighted sound pressure in Pa. 3.7 A-weighted equivalent continuous sound pressu
39、re level LpAeq,T A-weighted sound pressure level given by the following equation: ( ) dBd 1 lg 10 0 2 0 2 A TpAeq, = T t p tp T L (4) where LpAeq,T A-weighted equivalent continuous sound pressure level in dB; T measurement time interval in s. 3.8 external warning horn device fitted to the exterior o
40、f a train that generates an acoustic warning signal to warn of the trains presence; this term covers pneumatic horns and whistles and similar devices, and also electronic devices 4 Measurement quantities All noise measurements shall be reported in terms of A-weighted equivalent continuous sound pres
41、sure level, LpAeq,T, over a defined measurement time interval, T in seconds. The cab noise sections of the relevant TSIs require measurements shall be carried out under two sets of conditions : (1) with the vehicle stationary during the sounding of the external warning horn; Licensed Copy: London So
42、uth Bank University, South Bank University, 02/02/2009 05:54, Uncontrolled Copy, (c) BSI prEN 15892:2009 (E) 6 (2) with the train running at its maximum speed. For condition (1), the external sound level of the external warning horn shall also to be measured. 5 Instrumentation The instrumentation sy
43、stem shall meet the requirements for a type 1 instrument as specified in EN 61672-1. A windscreen shall always be fitted to the microphone for external measurements and is advisable for in-cab measurements. Before and after each series of measurements, a sound calibrator with a class 1 accuracy acco
44、rding to EN 60942 shall be applied to the microphone(s) in order to verify the calibration of the entire measuring system at one or more frequencies within the range of interest. If the difference between the calibrations at a specific frequency before and after the measurements is greater than 0,5
45、dB, the measurements shall be rejected. Compliance of the calibrator with the requirements of EN 60942 shall be verified at least once per year. Compliance of the instrumentation system with the requirements of EN 61672-1 shall be verified at least once every two years. 6 Test conditions 6.1 General
46、 All cab windows and doors shall be closed during noise measurements. The minimum number of people necessary to carry out the acoustic tests shall be present in the cab during the measurements. The cab is to be in the condition that will apply when in service. 6.2 Internal and external measurement o
47、f external warning horn level The vehicle shall be stationary, and positioned in an open environment, and therefore not in a building or in a tunnel. Except for the ground, there shall not be any acoustically reflective (hard) surfaces comprising such materials as steel or concrete, including other
48、trains and fixed structures, within 10 m of the external surfaces of the sides of the cab within which tests are being undertaken. Similarly, there shall not be any acoustically reflective surfaces within 25 m of the external surface of the front end of the cab. The sound source that is to be measur
49、ed, the external warning horn, is inherently of high sound level, and therefore typical internal background noise levels in the cab when stationary are unlikely to interfere with the measured results. Nevertheless, it is advisable to run only those systems on the train that are essential to allow the external warning horn to sound, and to avoid positioning th