1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationHousehold and similar appliances Test code for the determination of airborneacoustical noisePart 2-2: Particular requirements for fan heatersBS EN 60704-2-2:2010National foreword
2、This British Standard is the UK implementation of EN 60704-2-2:2010. It isidentical to IEC 60704-2-2:2009. It supersedes BS EN 60704-2-2:1995 whichis withdrawn.The UK participation in its preparation was entrusted to Technical CommitteeCPL/59, Performance of household electrical appliances.A list of
3、 organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2010ISBN 978 0 580 65252 3ICS 17.140.20; 97.100.10Compliance with a B
4、ritish Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 30 June 2010.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60704-2-2:2010EUROPEAN STANDARD EN 60
5、704-2-2 NORME EUROPENNE EUROPISCHE NORM April 2010 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2010 CENELEC - All rights of expl
6、oitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60704-2-2:2010 E ICS 17.140.20; 97.100.10 Supersedes EN 60704-2-2:1994English version Household and similar appliances - Test code for the determination of airborne acoustical noise - Part 2-2: Particular requi
7、rements for fan heaters (IEC 60704-2-2:2009) Appareils lectrodomestiques et analogues - Code dessai pour la dtermination du bruit arien - Partie 2-2: Rgles particulires pour les ventilo-convecteurs (CEI 60704-2-2:2009) Elektrische Gerte fr den Hausgebrauch und hnliche Zwecke - Prfvorschrift fr die B
8、estimmung der Luftschallemission - Teil 2-2: Besondere Anforderungen an Konvektionsheizgerte mit erzwungener Konvektion (IEC 60704-2-2:2009) This European Standard was approved by CENELEC on 2010-04-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the
9、 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 may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists
10、 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 notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electro
11、technical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,
12、Switzerland and the United Kingdom. EN 60704-2-2:2010 - 2 - Foreword The text of document 59C/134/CDV, future edition 2 of IEC 60704-2-2, prepared by SC 59C, Heating appliances, of IEC TC 59, Performance of household electrical appliances, was submitted to the IEC-CENELEC parallel vote and was appro
13、ved by CENELEC as EN 60704-2-2 on 2010-04-01. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. This European Standard supersedes EN 60704-
14、2-2:1994. The main changes from the previous edition are as follows: provisions with regard to measurement uncertainty and standard deviation for declaration and verification have been included in the scope. Attention is drawn to the possibility that some of the elements of this document may be the
15、subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2011-01-
16、01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2013-04-01 This Part 2-2 is intended to be used in conjunction with EN 60704-1:1997, Household and similar electrical appliances Test code for the determination of airborne acoustical noise Part 1: Gene
17、ral requirements. The relevant text of Part 1 as amended by this document establishes the test code for electric thermal storage room heaters. This Part 2-2 supplements or modifies the corresponding clauses of EN 60704-1. When a particular subclause of Part 1 is not mentioned in this Part 2-2, that
18、subclause applies as far as is reasonable. Where this Part 2-2 states “addition“, “modification“ or “replacement“, the relevant text of Part 1 is to be adapted accordingly. Subclauses or figures which are additional to those in Part 1 are numbered starting from 101. Unless notes are in a new subclau
19、se or involve notes in Part 1, they are numbered starting from 101, including those in a replaced clause or subclause. _ Endorsement notice The text of the International Standard IEC 60704-2-2:2009 was approved by CENELEC as a European Standard without any modification. _ BS EN 60704-2-2:2010 2 6070
20、4-2-2 IEC:2009(E) CONTENTS INTRODUCTION.5 1 Scope and object6 1.1 Scope6 1.1.1 General .6 1.1.2 Types of noise.6 1.1.3 Size of the source6 1.2 Object .6 1.3 Measurement uncertainty 7 2 Normative references .7 3 Terms and definitions .7 4 Measurement methods and acoustical environments 7 5 Instrument
21、ation 7 6 Operation and location of appliances under test .8 6.1 Equipping and pre-conditioning of appliances8 6.2 Supply of electric energy and of water or gas 8 7 Measurement of sound pressure levels.10 8 Calculation of sound pressure and of sound power levels.10 9 Information to be recorded10 10
22、Information to be reported 10 Annexes .12 BS EN 60704-2-2:201060704-2-2 IEC:2009(E) 5 INTRODUCTION The measuring conditions specified in this part 2-2 provide for sufficient accuracy in determining the noise emitted and comparing the results of measurements taken by different laboratories, whilst si
23、mulating as far as possible the practical use of fan heaters. It is recommended to consider the determination of noise levels as part of a comprehensive testing procedure covering many aspects of the properties and performance of fan heaters. NOTE As stated in the introduction to IEC 60704-1, this t
24、est code is concerned with airborne noise only. BS EN 60704-2-2:2010 6 60704-2-2 IEC:2009(E) HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES TEST CODE FOR THE DETERMINATION OF AIRBORNE ACOUSTICAL NOISE Part 2-2: Particular requirements for fan heaters 1 Scope and object This clause of part 1 is applicab
25、le except as follows: 1.1 Scope 1.1.1 General Replacement: This standard applies to electric fan heaters, designed for placing on the floor, table or counter, etc., or for wall-mounting. This standard does not apply to electric storage room heaters; room humidifiers; room dehumidifiers; air cleaners
26、; heaters designed exclusively for industrial purposes. 1.1.2 Types of noise Replacement: ISO 3743-1, ISO 3743-2 and ISO 3744 can be used for measuring noise emitted by fan heaters. 1.1.3 Size of the source Replacement: The method specified in ISO 3744 is applicable to noise sources of any size. Whe
27、n applying ISO 3743-1 and ISO 3743-2, care should be taken that the maximum size of the appliance under test fulfils the requirements specified in Subclause 1.3 of ISO 3743-1 and ISO 3743-2. 1.2 Object Addition: The frequency range of interest for sound power determination on fan heaters includes at
28、 least the octave bands with centre frequencies from 63 Hz to 8000 Hz. NOTE 1 In many cases, the 63 Hz octave band level does not participate significantly to the A-weighted level. NOTE 2 When measuring this 63 Hz octave band, a special attention should be paid to the room effect. BS EN 60704-2-2:20
29、1060704-2-2 IEC:2009(E) 7 Requirements for the declaration of noise emission values are not within the scope of this standard. NOTE 3 For determining and verifying noise emission values, declared in product specifications, see IEC 60704-3. 1.3 Measurement uncertainty Replacement: The estimated value
30、s of standard deviations of sound power levels, determined according to this standard, are as follows: Standard deviation, dB r (repeatability) R (reproducibility) 0,4 1,0 1.101 Standard deviation for declaration and verification For the purpose of determining and verifying declared noise emission v
31、alues according to IEC 60704-3, the following values apply: Standard deviation, dB P (production) t (total) M (reference) 0,3 1,1 1,0 1,6 1,5 2 Normative references This clause of part 1 is applicable. 3 Terms and definitions This clause of part 1 is applicable. 4 Measurement methods and acoustical
32、environments This clause of part 1 is applicable except as follows: 4.2 Direct method Addition: NOTE If pure tone components are present in the noise emitted, proper precautions should be taken as specified in ISO 3743-2. 4.3 Comparison method Addition: NOTE If pure tone components are present in th
33、e noise emitted, proper precautions should be taken as specified in ISO 3743-1 and 3743-2. 5 Instrumentation This clause of part 1 is applicable except as follows: BS EN 60704-2-2:2010 8 60704-2-2 IEC:2009(E) 5.1 Addition: Windscreens should be used and the relevant corrections for changes in the mi
34、crophone sensitivity shall be added to the observed sound pressure levels. 6 Operation and location of appliances under test This clause of part 1 is applicable except as follows: 6.1 Equipping and pre-conditioning of appliances 6.1.1 Addition: Air filters, if any, shall be clean. 6.1.3 Replacement:
35、 Prior to noise measurements, the appliance equipped in accordance with Subclause 6.1.1, shall have been in operation for a total period of at least 2 h for running-in at the highest speed setting with the maximum heating switched on for normal permanent use. Oscillating function if available shall
36、be switched on. During the running-in procedure air filters, if any, may be removed. If filters remain in the appliances during this running-in period, they shall be clean or renewed after this period. 6.1.4 Replacement: Immediately before each series of noise measurements, the appliance equipped in
37、 accordance with Subclause 6.1.1 shall be operated for stabilizing at the highest speed setting and maximum heating switched on for normal permanent use for 5 min. 6.2 Supply of electric energy and of water or gas 6.2.1 Modification: The voltage tolerance shall be 0,5 %. 6.2.2 Not applicable 6.2.3 R
38、eplacement: The appliance shall be operated with the heating elements switched on. Special attention is required to be given to the possible effect of the temperature rise on the acoustical behaviour of the test room. 6.2.4 Not applicable 6.4 Loading and operating of appliances during tests 6.4.2 Re
39、placement: The appliance shall be equipped according to 6.1.1. BS EN 60704-2-2:201060704-2-2 IEC:2009(E) 9 The noise emission shall be determined with the appliance at the highest speed setting and maximum heating for normal permanent use. Oscillating mechanism, if any, shall be switched on. NOTE Ot
40、her possible speed settings ( minimum heat output, boost position,.) can be measured in addition. The respective noise levels should be linked to the relevant heat output. Appropriate adjustment of air intake or exhaust openings shall be done taking into account manufacturers instructions if any, or
41、 otherwise selecting the configuration that gives the highest noise emission. 6.4.3 Not applicable 6.5 Location and mounting of appliances 6.5.1 Addition: The tests under the conditions stated in Subclause 6.5.3 shall be repeated for floor standing-appliances which may be placed either against or aw
42、ay from the wall. For such appliances both sets of results shall be recorded and the measurement that gives highest noise is then chosen. 6.5.2 Not applicable 6.5.3 Replacement: For measurements on floor-standing appliances intended for placing against a wall, including those for building in, a vert
43、ical reflecting plane having an acoustic absorption coefficient of less than 0,06 must be used. When measurements are made in a reverberation test room, a part of the wall of the room will serve for this purpose. The minimum area of this part of the wall should be determined by the projection of the
44、 appliance extended by at least 0,5 m upwards and to both sides. The minimum distance between any surface of the appliance or its cabinet and the nearest corner of the room shall be 1 m. When measurements are made in a free-field environment, the size of the vertical reflecting plane (supported by t
45、he horizontal reflecting plane) shall be at least equal to the size of the projection of the measurement surface. For both types of test environment the following requirements shall be complied with: the appliance shall be placed in the test environment without any resilient means of support other t
46、han those incorporated in the appliance; care should be taken to avoid any direct contact between the appliance (including protruding parts, worktops, spacers, etc.) and the vertical reflecting wall; the distance between the wall and the appliance shall be established by placing the appliance in dir
47、ect contact with the wall and moving it away for a distance not exceeding 10 cm 1 cm. 6.5.4 Modification: The height of the lowest edge of the appliance from the floor shall be 25 cm 1 cm. NOTE For appliances intended for mounting close to the ceiling with the air stream directed towards the floor,
48、measurements problems may be caused when the appliance is mounted as specified in Subclause 6.5.4. It may be necessary to mount such an appliance in an inverted position, with the top of the appliance facing towards the floor BS EN 60704-2-2:2010 10 60704-2-2 IEC:2009(E) at a height of 0,25 m, or at
49、 the distance specified by the manufacturer for mounting close to the ceiling. The manufacturers approval must be obtained before operating the appliance under the proposed test conditions. 6.5.5 Modification: Built-in heaters such as plinth heaters shall be installed according to manufacturers instructions. 7 Measurement of sound pressure levels This clause of part 1 is applicable except as follows: 7.1 Microphone array, measurement surface and R.S.S.
