1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationHousehold and similar electrical appliances Test code for the determination of airborne acoustical noise Part 2-4: Particular requirements for washing machines and spin extractor
2、sBS EN 60704-2-4:2012National forewordThis British Standard is the UK implementation of EN 60704-2-4:2012. It was derived by CENELEC from IEC 60704-2-4:2011. It supersedes BS EN 60704-2-4:2001, which will be withdrawn on 13 April 2015.The CENELEC common modifications have been implemented at the app
3、ropriate places in the text and are indicated by tags (e.g. ).The UK participation in its preparation was entrusted by Technical CommitteeCPL/59, Performance of household electrical appliances, to Subcommittee CPL/59/1, Dishwashers and washing machines.A list of organizations represented on this com
4、mittee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012 ISBN 978 0 580 71435 1 ICS 97.0
5、60Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60704-2-4:20
6、12EUROPEAN STANDARD EN 60704-2-4 NORME EUROPENNE EUROPISCHE NORM June 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2012 CENE
7、LEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60704-2-4:2012 E ICS 17.140.20; 97.060 Supersedes EN 60704-2-4:2001English version Household and similar electrical appliances - Test code for the determination of airborne acoustical no
8、ise - Part 2-4: Particular requirements for washing machines and spin extractors (IEC 60704-2-4:2011, modified) Appareils lectrodomestiques et analogues - Code dessai pour la dtermination du bruit arien - Partie 2-4: Exigences particulires pour les machines laver le linge et les essoreuses centrifug
9、es (CEI 60704-2-4:2011, modifie) Elektrische Gerte fr den Hausgebrauch und hnliche Zwecke - Prfvorschrift fr die Bestimmung der Luftschallemission - Teil 2-4: Besondere Anforderungen an Waschmaschinen und Wscheschleudern(IEC 60704-2-4:2011, modifiziert) This European Standard was approved by CENELEC
10、 on 2012-04-13. CENELEC members 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. Up-to-date lists and bibliographical references concerning such national standards
11、may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and
12、 notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
13、 Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 60704-2-4:2012EN 60704-2-4:2012 2 Foreword The text of document 59D/379/CDV, future edition 3 of IEC 60704-2-4, prepa
14、red by IEC/SC 59D, “Home laundry appliances“, of IEC TC 59, “Performance of household electrical appliances“, was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60704-2-4:2012. A draft amendment, which covers common modifications to IEC 60704-2-4 (59D/379/CDV), was prepared
15、 by CLC/TC 59X “Performance of household and similar electrical appliances“ and approved by CENELEC. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-04-13 latest da
16、te by which the national standards conflicting with this document have to be withdrawn (dow) 2015-04-13 This document supersedes EN 60704-2-4:2001. EN 60704-2-4:2012 includes the following significant technical changes with respect to EN 60704-2-4:2001: measurement uncertainty and standard deviation
17、s are taken into account, definitions of standard test load and standard test program are modified, test enclosure was replaced by common test enclosure defined in Part 1, information to be reported is modified. Attention is drawn to the possibility that some of the elements of this document may be
18、the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. EN 60704-2-4 is intended to be used in conjunction with EN 60704-1:2010, Household and similar electrical appliances Test code for the determination of airborneacoustical noi
19、se Part 1: General requirements. NOTE When “Part 1” is mentioned in this standard, it refers to EN 60704-1. The relevant text of Part 1 as amended by this publication establishes the test code for washing machines and spin extractors. EN 60704-2-4 supplements or modifies the corresponding clauses in
20、 EN 60704-1. When a particular subclause of Part 1 is not mentioned in EN 60704-2-4, that subclause is applicable as far as reasonable. Where this standard states “addition“, “modification“ or “replacement“, the relevant requirements, test specifications or explanatory matter in Part 1 should be ada
21、pted accordingly. Subclauses, tables and figures that are additional to those in Part 1 are numbered starting from 101. Additional annexes are lettered AA, BB, etc. BS EN 60704-2-4:2012 3 EN 60704-2-4:2012 Unless notes are in a new subclause or involve notes in Part 1, they are numbered starting fro
22、m 101, including those in a replaced clause or subclause. Endorsement notice The text of the International Standard IEC 60704-2-4:2011 was approved by CENELEC as a European Standard with agreed common modifications. In the official version, for Bibliography, the following note has to be added for th
23、e standard indicated: Addition to EN 60704-1:2010: IEC 60704-2-6 NOTE Harmonized as EN 60704-2-6. BS EN 60704-2-4:2012EN 60704-2-4:2012 4 COMMON MODIFICATIONS 6 Operation and location of appliance under test 6.101 Standard test programme for noise measurements Replace this clause by the following: T
24、he standard test programme for noise measurements is the standard 60 C cotton programme for normally soiled load provided by the manufacturer in the instruction manual. If this programme is not available, then the most efficient 60 C cotton programme for normally soiled load without pre-wash accordi
25、ng to the manufacturers instructions shall be used. Other special options shall be deselected. Highest available spin speed is to be chosen. The standard test programme for noise measurements is carried out without detergent. 6.102.1 General Replace this clause by the following: The standard test lo
26、ad for noise measurements of washing machines consist of conditioned cotton test load at a weight close to, but in any case not more than, the rated capacity. To minimize the influence of changes in the characteristics of the cotton test load items with increasing age, the standard test load shall c
27、onsist of cotton test load items which are well distributed in age to give an average age of the standard test load between 30 and 50 runs of the standard test programme. The number of items or average age shall not be adjusted during a test series. The average age of the standard test load is calcu
28、lated as follows: iiiannA =1where aiis the age of a single cotton test load item as the number of test runs after pre-treatment as defined in 6.102.2; niis the number of cotton test load items of the same age; A is the average age of the standard test load expressed as the number of test runs. Cotto
29、n test load items shall undergo normalisation as defined in 6.102.3 at least after have been used 10 runs of the standard test programme. No test load item shall be used for more than 80 runs of the standard test programme, excluding pre-treatment runs prior to initial use and normalisation runs. BS
30、 EN 60704-2-4:2012 5 EN 60704-2-4:2012 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated
31、 references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Addition to EN 6070
32、4-1:2010 : Publication Year Title EN/HD Year IEC 60456 (mod) + corr. September 2010 2011 Clothes washing machines for household use - Methods for measuring the performance EN 60456 + AC 2011 2011 BS EN 60704-2-4:2012 2 60704-2-4 IEC:2011 CONTENTS INTRODUCTION . 5 1 Scope and object 6 1.1 Scope 6 1.2
33、 Object . 6 1.3 Measurement uncertainty 6 1.101 Standard deviation for declaration and verification 7 2 Normative references . 7 3 Terms and definitions . 7 4 Measurement methods and acoustical environments 8 4.2 Direct method 8 4.3 Comparison method 9 5 Instrumentation 9 5.3 Instrumentation for mea
34、suring operating conditions . 9 6 Operation and location of appliances under test . 9 6.1 Equipping and pre-conditioning of appliances 9 6.2 Supply of electric energy and of water or gas 9 6.4 Loading and operating of appliances during tests 10 6.5 Location and mounting of appliances . 10 6.101 Stan
35、dard test programme for noise measurements 10 6.102 Standard test load for noise measurements . 10 7 Measurement of sound power levels . 12 7.1 Microphone array, measurement surface and RSS location for essentially free-field conditions over reflecting plane(s) 12 7.4 Measurements . 12 8 Calculation
36、 of sound pressure and sound power levels . 12 8.101 Final result 12 9 Information to be recorded 13 9.2 Description of appliance under test . 13 9.7 Electric supply, water supply, etc. . 13 9.9 Operation of the appliance under test 13 9.12 Measured data 13 10 Information to be reported 13 10.3 Test
37、 conditions for the appliance . 13 10.4 Acoustical data 14 Annexes . 15 Annex A (normative) . 15 Bibliography 16 Table 101 Standard deviations of sound power levels for washing machines . 7 Table 102 Standard deviations of sound power levels for spin extractors . 7 Table 103 Standard deviations for
38、declaration and verification for washing machines 7 Table 104 Standard deviations for declaration and verification for spin extractors 7 BS EN 60704-2-4:201260704-2-4 IEC:2011 5 INTRODUCTION The measuring conditions specified in this Part 2-4 provide for sufficient accuracy in determining the noise
39、emitted and comparing the results of measurements taken by different laboratories, whilst simulating as far as possible the practical use of household washing machines and spin extractors. It is recommended to consider the determination of noise levels as part of a comprehensive testing procedure co
40、vering many aspects of the properties and performance of household washing machines and spin extractors. NOTE As stated in the introduction to IEC 60704-1, this test code is concerned with airborne noise only. BS EN 60704-2-4:2012 6 60704-2-4 IEC:2011 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES TEST
41、 CODE FOR THE DETERMINATION OF AIRBORNE ACOUSTICAL NOISE Part 2-4: Particular requirements for washing machines and spin extractors 1 Scope and object This clause of Part 1 is applicable except as follows: 1.1 Scope 1.1.1 General Addition: These particular requirements apply to single unit electrica
42、l washing machines and the washing and spinning function of combined appliances for household and similar use and to spin extractors for household and similar use. NOTE 101 For drying function, see IEC 60704-2-6. 1.1.2 Types of noise Replacement: The methods specified in ISO 3743-1, ISO 3743-2 and I
43、SO 3744 can be used for measuring noise emitted by washing machines and spin extractors. 1.1.3 Size of the source Replacement: The method specified in ISO 3744 is applicable to noise sources of any size. When applying ISO 3743-1 and ISO 3743-2, care should be taken that the maximum size of the washi
44、ng machine or spin extractor under test fulfils the requirements specified in 1.3 of ISO 3743-1 and ISO 3743-2. 1.2 Object Addition: Requirements for the declaration of noise emission values are not within the scope of this standard. NOTE 101 For determining and verifying noise emission values decla
45、red in product specifications, see IEC 60704-3. 1.3 Measurement uncertainty Replacement: For washing machines the estimated values of standard deviations of sound power levels, determined according to this standard, are as indicated in Table 101: BS EN 60704-2-4:201260704-2-4 IEC:2011 7 Table 101 St
46、andard deviations of sound power levels for washing machines Standard deviation (dB) r(repeatability) R(reproducibility) 0,6 1,0 For spin extractors the estimated values of standard deviations of sound power levels, determined according to this standard, are as indicated in Table 102: Table 102 Stan
47、dard deviations of sound power levels for spin extractors Standard deviation (dB) r(repeatability) R(reproducibility) 0,5 1,0 1.101 Standard deviation for declaration and verification For the purpose of determining and verifying declared noise emission values for washing machines according to IEC 60
48、704-3, the values indicated in Table 103 apply: Table 103 Standard deviations for declaration and verification for washing machines Standard deviation (dB) P(production) t(total) M(reference) 1,0 to 2,2 1,4 to 2,4 2,5 For the purpose of determining and verifying declared noise emission values for sp
49、in extractors according to IEC 60704-3, the values indicated in Table 104 apply: Table 104 Standard deviations for declaration and verification for spin extractors Standard deviation (dB) P(production) t(total) M(reference) 1,0 to 1,2 1,4 to 1,6 2,0 2 Normative references This clause of Part 1 is applicable except as follows: Addition: IEC 60456:2010, Clothes washing machines for household use Methods for measuring the performance 3 Terms and definitions This claus
