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1、BRITISH STANDARD BS ISO 6969:2004 Road vehicles Sound signalling devices Tests after mounting on vehicle ICS 43.040.20 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:17:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 6969:2004 This British Standard was published under the authority
2、 of the Standards Policy and Strategy Committee on 14 July 2004 BSI 14 July 2004 ISBN 0 580 44044 3 National foreword This British Standard reproduces verbatim ISO 6969:2004 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee AU
3、E/16, Electrical and electronic equipment, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found i
4、n 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. This publication does not purport to include all the necessary provisions of a contract. Users are responsi
5、ble for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the
6、UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 5 and a back cover. The BSI copyright notice dis
7、played in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:17:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 6969:2004(E) OSI 4002 INTERNATIONAL STANDARD
8、ISO 6969 Third edition 2004-07-01 Road vehicles Sound signalling devices Tests after mounting on vehicle Vhicules routiers Avertisseurs sonores Essais aprs montage sur le vhicule BS ISO 6969:2004 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:17:21 GMT+00:00 2006, Uncontrolled Copy, (c) B
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14、 na, Sun Nov 26 14:17:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:9696 O4002(E) I SO 4002 All irthgs ersedevr iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Sta
15、ndards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also
16、take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees
17、 is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibi
18、lity that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 6969 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical and electronic equipment. This th
19、ird edition cancels and replaces the second edition (ISO 6969:1999), which has been technically revised. BS ISO 6969:2004 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:17:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:17:21 GMT+00:
20、00 2006, Uncontrolled Copy, (c) BSI INTENRATIONAL TSANDADR IS:9696 O4002(E) I SO 4002 All irthgs ersedevr 1 Road vehicles Sound signalling devices Tests after mounting on vehicle 1 Scope This International Standard specifies the testing of sound signalling devices in accordance with ISO 512, to be c
21、arried out after mounting on the vehicle. 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 the referenced document (including any amend
22、ments) applies. ISO 512:1979, Road vehicles Sound signalling devices Technical specifications IEC 61672 (all parts), Electroacoustics Sound level meters 1) 3 Measuring apparatus The measurement of sound pressure levels shall be made using a sound level meter in accordance with IEC 61672. When a devi
23、ce for protection of the sound level meter against wind is used, its effect on the measuring accuracy shall be taken into account according to the indications of the manufacturer. The electrical measurements shall be made using instruments of the class 0,5 as specified in IEC 61672. The measurements
24、 of lengths shall be made with a tolerance of 0,05 m. 4 Expression of results The results of the measurements of the sound pressure levels shall be in relation to 2 105 Pa (N/m2), weighted in accordance with curve A as specified in IEC 61672, with the A-weighted results expressed in decibels. 1) Rep
25、laces IEC 60651. BS ISO 6969:2004 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:17:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:9696 O4002(E) 2 I SO 4002 All irthgs ersedevr 5 Test conditions 5.1 Test site The vehicle shall be placed on an open site, such as an open space of at least
26、 50 m radius, the central part of which, intended for the execution of the measurements, shall be practically horizontal over at least 20 m radius, covered with concrete, asphalt or any similar material, and free from long grass, loose soil or ashes. No person other than the observer taking the read
27、ings on the sound level meter shall be in the vicinity of the sound signalling device or of the microphone (the presence of bystanders could have an appreciable influence on the meter readings). 5.2 Ambient conditions Measurements shall not be affected by weather conditions (wind, rain, humidity, et
28、c.). No measurements shall be carried out when the wind speed is greater than 5 m/s. The ambient temperature during the measurements shall be within the temperature range specified for the measuring equipment. The ambient noise level within the entire range covered by frequencies of the sound compon
29、ents emitted by the sound signalling device shall be at least 10 dB lower than the sound level of each of the components. However, this requirement is not applicable to components with a measured sound pressure level lower than 70 dB (A-weighted). 5.3 Time constant Measurements shall be carried out
30、with the fast time constant of the sound measuring device. 5.4 Positioning of the microphone 5.4.1 Direction The axis of maximum sensitivity of the microphone shall be horizontal and parallel to the vertical longitudinal zero plane of the vehicle and directed towards the front of the vehicle. 5.4.2
31、Position The microphone shall be placed (7 0,1) m from the foremost point of the vehicle within a circle of 0,5 m radius, whose plane is vertical and perpendicular to the longitudinal zero plane of the vehicle and whose centre is 1,0 m above the ground, (see Figure 1). 5.5 Supply conditions 5.5.1 Su
32、pply with alternating current For sound signalling devices supplied by alternating current, the measurements shall be made with the engine running at three speeds corresponding to 50 %, 75 % and 100 % of the maximum engine speed specified by the manufacturer. When the measurements are being made the
33、re shall be no other electrical load supplied by the generator. 5.5.2 Supply with direct current The sound signalling devices shall be operated at the applicable test voltage specified in Table 1 for the different nominal on-board supply voltages. Measure the voltage during the operation of the soun
34、d signalling device at the terminals of the energy source. BS ISO 6969:2004 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:17:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:9696 O4002(E) I SO 4002 All irthgs ersedevr 3 Table 1 Nominal supply voltage and test voltage Nominal supply volta
35、ge, UN V 6 12 24 Test voltage, UT V 6,5 13 26 If a rectified a.c. supply is used for the test, the alternating voltage components measured peak-to-peak at the terminals of the energy source during the operation of the sound signalling device shall not exceed 0,1 V. For electro-pneumatic sound signal
36、ling devices, the connections between the sound source and the compressor shall be made according to the instructions of the manufacturer. Dimensions in metres Key 1 zero X plane (vertical transverse zero plane) 2 zero Y plane (vertical longitudinal zero plane) 3 ground 4 zero Z plane (horizontal ze
37、ro plane) Figure 1 Positioning of the microphone BS ISO 6969:2004 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:17:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:9696 O4002(E) 4 I SO 4002 All irthgs ersedevr 5.5.3 Supply with compressed air Pneumatic sound signalling devices shall be s
38、upplied in accordance with the indications of the manufacturer. 5.6 Measurements Select appropriate positions for the microphone within the test circle specified in 5.4.2 and measure the sound pressure level at each of these positions. Continue until the position of the maximum sound pressure level
39、is found. The time of operation of the device under test shall be as short as possible. In no case shall the test time exceed 30 consecutive seconds, after which it is necessary to allow the sound signalling device under test to cool down for at least 20 min. In the case where a vehicle is equipped
40、with several sound signalling devices which operate simultaneously, the measurements shall be made with all the devices operating at the same time. Any peaks in the readings which are apparently unrelated to the characteristics of the general sound level shall not be taken into account. 6 Requiremen
41、ts In accordance with ISO 512, sound signalling devices shall emit a continuous uniform sound; their acoustic spectra shall not vary significantly during operation. For sound signalling devices operated by an a.c. supply, the requirements apply only at a constant engine speed as specified in 5.5.1.
42、Measured under the conditions specified in Clause 5, the value of the sound pressure level of the device under test shall be not greater than 112 dB (A-weighted) 2), but shall be at least a) 70 dB (A-weighted) 3) for sound signalling devices installed on mopeds with a maximum speed of 30 km/h, b) 73
43、 dB (A-weighted) 3) for sound signalling devices installed on mopeds with a maximum speed greater than 30 km/h, c) 83 dB (A-weighted) 4) for sound signalling devices installed on motorcycles of up to and including 7 kW power output of the engine, and d) 93 dB (A-weighted) 4) for sound signalling dev
44、ices installed on vehicles having at least four wheels and for motorcycles with power output of the engine exceeding 7 kW. NOTE The values given here could differ from legal requirements (e.g. 93/30/EEC) in some countries. 2) Value taken from ECE Regulation 28, Part II, and 93/30/EEC. 3) Value based
45、 on ECE Regulation 63, Annex 4. 4) Value taken from ECE Regulation 28, Part II. BS ISO 6969:2004 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:17:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:9696 O4002(E) I SO 4002 All irthgs ersedevr 5 Bibliography 1 ECE-R 28, Uniform provisions con
46、cerning the approval of audible warning devices and of motor vehicles with regard to their audible signals 2 ECE-R 63, Uniform provisions concerning the approval of mopeds with regard to noise 3 93/30/EEC, Council Directive of 14 June 1993 on sound signalling devices for two- or three-wheeled power
47、driven vehicles 4 IEC 60051 (all parts), Direct acting indicating analogue electrical measuring instruments and their accessories 5 IEC 61260:1995, Electroacoustics Octave-band and fractional-octave-band filters BS ISO 6969:2004 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:17:21 GMT+00:
48、00 2006, Uncontrolled Copy, (c) BSI BS ISO 6969:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incor
49、porated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the i