1、 IEC 60704-1Edition 3.0 2010-02INTERNATIONAL STANDARD NORME INTERNATIONALEHousehold and similar electrical appliances Test code for the determination of airborne acoustical noise Part 1: General requirements Appareils lectrodomestiques et analogues Code dessai pour la dtermination du bruit arien Par
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16、questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 60704-1Edition 3.0 2010-02INTERNATIONAL STANDARD NORME INTERNATIONALEHousehold and similar electrical appliances Test code for the determination of airborne acoustical noi
17、se Part 1: General requirements Appareils lectrodomestiques et analogues Code dessai pour la dtermination du bruit arien Partie 1: Exigences gnrales INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE VICS 13.120; 97.170 PRICE CODECODE PRIXISBN 2-8318-1080-5 Register
18、ed trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 60704-1 IEC:2010 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope and object7 1.1 Scope7 1.1.1 General .7 1.1.2 Types of noise.7 1.1.3 Size of the source7 1.2 Object .7 1.3 Measure
19、ment uncertainty 8 2 Normative references .8 3 Terms and definitions .9 4 Measurement methods and acoustical environments 10 4.1 General .10 4.2 Direct method10 4.3 Comparison method 11 4.4 Acoustical environments11 4.4.1 General requirements and criterion for adequacy of the test environment 11 4.4
20、.2 Criterion for background noise level 11 4.4.3 Environmental conditions.12 5 Instrumentation 12 5.1 Instrumentation for measuring acoustical data.12 5.2 Instrumentation for measuring climatic conditions12 5.3 Instrumentation for measuring operating conditions.12 6 Operation and location of applian
21、ces under test .12 6.1 Equipping and pre-conditioning of appliances12 6.2 Supply of electric energy and of water or gas 13 6.3 Climatic conditions 13 6.4 Loading and operating of appliances during tests 14 6.5 Location and mounting of appliances.14 7 Measurement of sound pressure levels.16 7.1 Micro
22、phone array, measurement surface and RSS location for essentially free field conditions over reflecting plane(s) 16 7.2 Microphone array and RSS location in hard-walled test rooms 18 7.3 Microphone array and RSS location in special reverberation test rooms 18 7.4 Measurements.19 8 Calculation of sou
23、nd pressure and sound power levels.19 8.1 General .19 8.2 Corrections for background noise levels 20 8.3 Corrections for the test environment20 8.4 Calculation of sound pressure level averaged over the microphone positions 20 8.5 Calculation of sound power levels with the comparison method.21 8.6 Ca
24、lculation of sound power levels in free field conditions over a reflecting plane.21 8.7 Calculation of A-weighted sound power level with the direct method in special reverberation test rooms21 60704-1 IEC:2010 3 9 Information to be recorded22 9.1 General data .22 9.2 Description of appliance under t
25、est .22 9.3 Measurement method22 9.4 Acoustical test environment.22 9.5 Instrumentation .23 9.6 Equipment and pre-conditioning of appliance under test23 9.7 Electric supply, water supply, etc. .23 9.8 Climatic conditions 23 9.9 Operation of the appliance under test23 9.10 Location and mounting of th
26、e appliance under test 23 9.11 Microphone array 23 9.12 Measurement data.24 9.13 Calculated sound pressure and sound power levels 24 10 Information to be reported 24 10.1 General data 9.1 .24 10.2 Appliance under test 9.224 10.3 Test conditions for the appliance .25 10.4 Acoustical data25 Annex A (n
27、ormative) Standard test table31 Annex B (normative) Test enclosure 32 Annex C (informative) Guidelines for the design of simple test rooms with essentially free field conditions 33 Bibliography34 Figure 1 Measurement surface parallelepiped with key microphone positions, for floor free-standing appli
28、ances.26 Figure 2 Measurement surface parallelepiped with key microphone positions, for floor standing appliances placed against a wall.26 Figure 3 Measurement surface parallelepiped with key microphone positions, for high floor-standing appliances placed against a wall.27 Figure 4 Measurement surfa
29、ce hemisphere with key microphone positions, for hand-held, table type and floor-treatment appliances 28 Figure 5 Measurement surface quarter-sphere with key microphone positions, for small floor-standing appliances placed against a wall .29 Figure 6 Measurement surface parallelepiped with five or n
30、ine microphone positions for stand-type appliances .30 Figure A.1 Example of standard test table31 Figure B.1 Test enclosure 32 4 60704-1 IEC:2010 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES TEST CODE FOR THE DETERMINATION OF AIRBORNE ACOUSTICAL NOISE Part
31、 1: General requirements FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerni
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40、arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention
41、 is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60704-1 has been prepared by IEC technical committee 59: Performance of hous
42、ehold and similar electrical appliances. This third edition cancels and replaces the second edition published in 1997 and constitutes an update and an editorial revision. It also includes the description of an appropriate test enclosure for appliances to be built in. The text of this standard is bas
43、ed on the following documents: FDIS Report on voting 59/546/FDIS 59/549/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. 60704-1 IEC:2010 5 This publication has been drafted in accordance with the ISO/IEC Directiv
44、es, Part 2. A list of all the parts in the IEC 60704 series, under the general title Household and similar electrical appliances Test code for the determination of airborne acoustical noise, can be found on the IEC website. The committee has decided that the contents of this publication will remain
45、unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 60704-1 IEC:2010 INTRODUCTION Although the noise
46、emitted by household appliances does not generally present a hazard to the hearing of the operator and other exposed persons, the need for standardization procedures for the determination of the noise emitted has been recognized for a long time. Such procedures should be specified, not only for spec
47、ial types of appliances, but also the principles should be applicable to the majority of appliances in general use. Generally, the determination of noise levels is only part of a comprehensive testing procedure covering many aspects of the properties and performances of the appliance. It is therefor
48、e important that the requirements for noise measurements (such as test environment, instrumentation, and amount of labour involved) should be kept at a modest level. The results of noise measurements will be used for many purposes, for example for noise declaration, as well as for comparing the nois
49、e emitted by a specific appliance to the noise emitted by other appliances of the same family. In other cases, the results will be taken as a basis for engineering action in the development stages of new pieces of equipment, or in deciding on means for sound insulation. For all purposes, it is important to specify procedures with known accuracy so that the results of measurem
