1、 IEC 60704-2-14 Edition 2.0 2013-01 INTERNATIONAL STANDARD Household and similar electrical appliances Test code for the determination of airborne acoustical noise Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets and food freezers IEC 60704-2-14:2013(E) THIS PUBLICA
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9、tre: csciec.ch. IEC 60704-2-14 Edition 2.0 2013-01 INTERNATIONAL STANDARD Household and similar electrical appliances Test code for the determination of airborne acoustical noise Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets and food freezers INTERNATIONAL ELECTR
10、OTECHNICAL COMMISSION N ICS 17.140.20; 97.040.20 PRICE CODE ISBN 978-2-83220-627-0 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. 2 60704-2-14 IEC:2013(E) CONTENTS FOREWORD . 3 INTRODUCTION .
11、 5 1 Scope and object 6 1.1 Scope 6 1.2 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 7 4.2 Direct method 8 4.3 Comparison method 8 5 Instru
12、mentation 8 6 Operation and location of appliances under test . 8 6.1 Equipping and pre-conditioning of appliances 8 6.2 Supply of electrical energy and of water or gas . 9 6.3 Climatic conditions 9 6.4 Loading and operating of appliances during test 9 6.5 Location and mounting of appliances . 10 7
13、Measurement of sound pressure levels . 10 7.1 Microphone array, measurement surface and RSS location for essentially free-field conditions over reflecting plane(s) 10 7.4 Measurements . 11 8 Calculation of sound pressure and sound power levels . 11 9 Information to be recorded 11 10 Information to b
14、e reported 11 Annexes . 13 Annex A (normative) Standard test table 13 Bibliography 14 Figure 101 Measurement surface parallelepiped with key microphone positions for high floor-standing appliances placed against a wall 12 Table 101 Standard deviations of sound power levels 7 Table 102 Standard devia
15、tions for declaration and verification . 7 60704-2-14 IEC:2013(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES TEST CODE FOR THE DETERMINATION OF AIRBORNE ACOUSTICAL NOISE Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets
16、and food freezers 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 concerning stan
17、dardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparat
18、ion is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely wit
19、h the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subj
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23、ormity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its dire
24、ctors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arisin
25、g 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 is dr
26、awn 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 60704-2-14 has been prepared by IEC technical committee 59: Performance of househo
27、ld and similar electrical appliances. This second edition cancels and replaces the first edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) the description of an appropri
28、ate test enclosure has been removed from this part of IEC 60704 and has been incorporated into Part 1 of IEC 60704-1; b) the values of standard deviations of sound power levels determined according to this part of IEC 60704 have been added. The text of this standard is based on the following documen
29、ts: 4 60704-2-14 IEC:2013(E) FDIS Report on voting 59/590/FDIS 59/595/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. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. This Part
30、 2-14 is intended to be used in conjunction with the third edition (2010) of IEC 60704-1, Household and similar electrical appliances Test code for the determination of airborne acoustical noise Part 1: General requirements. NOTE When “Part 1” is mentioned in this standard, it refers to IEC 60704-1.
31、 The relevant text of Part 1 as amended by this publication establishes the test code for refrigerators, frozen-food storage cabinets and food freezers. This Part 2-14 supplements or modifies the corresponding clauses in IEC 60704-1. When a particular subclause of Part 1 is not mentioned in this Par
32、t 2-14, 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 are to be adapted accordingly. Subclauses, tables and figures that are numbered starting f
33、rom 101 are additional to those in Part 1. Additional annexes are lettered AA, BB, etc. Unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including those in a replaced clause or subclause. A list of all the parts in the IEC 60704 series, published u
34、nder 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 unchanged until the stability date indicated on the IEC web si
35、te 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. A bilingual version of this publication may be issued at a later date. 60704-2-14 IEC:2013(E) 5 INTRODUCTION The
36、measuring conditions specified in this part of 60704 provide for sufficient accuracy in determining the noise emitted and comparing the results of measurements taken by different laboratories, whilst simulating as far as possible the practical use of household refrigerators, frozen-food storage cabi
37、nets and food freezers. 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 household refrigerators, frozen-food storage cabinets and food freezers. NOTE As stated in the introduction
38、to IEC 60704-1, this test code is concerned with airborne noise only. 6 60704-2-14 IEC:2013(E) HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES TEST CODE FOR THE DETERMINATION OF AIRBORNE ACOUSTICAL NOISE Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets and food freezers
39、 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 refrigerators, frozen-food storage cabinets and food freezers (fitted with their accessories) for household and similar use, supplied from the mains or
40、from batteries. 1.1.2 Types of noise Replacement: The methods specified in ISO 3743-1, ISO 3743-2 and ISO 3744 can be used for measuring noise emitted by refrigerators, frozen-food storage cabinets and food freezers. 1.1.3 Size of the source Replacement: The method specified in ISO 3744 is applicabl
41、e 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 refrigerator, frozen-food storage cabinet or food freezer under test fulfils the requirements specified in 1.3 of ISO 3743-1 and ISO 3743-2. 1.2 Object Addition: These described
42、 methods are specified for appliances without an operator present. 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 declared in product specifications, see IEC 60704-3. 1.3 Measurement un
43、certainty Replacement: The estimated values of standard deviations of sound power levels determined according to this standard are indicated in Table 101: 60704-2-14 IEC:2013(E) 7 Table 101 Standard deviations of sound power levels Standard deviation (dB) r (repeatability) R (reproducibility) 0,4 0,
44、7 Addition: 1.101 Standard deviation for declaration and verification For the purpose of determining and verifying declared noise emission values according to IEC 60704-3, the values indicated in Table 102 apply: Table 102 Standard deviations for declaration and verification Standard deviation (dB)
45、P (production) t (total) M (reference) 0,7 to 1,5 1,0 to 1,7 2,0 2 Normative references This clause of Part 1 is applicable. 3 Terms and definitions This clause of Part 1 is applicable except as follows: Addition: 3.101 running period for a refrigerator, frozen-food storage cabinet or food freezer,
46、period which begins when the compressor turns on and ends when the compressor turns off 3.102 accessory detachable part intended to be loaded by things to be cooled 3.103 temperature control cycle time within the repetitive temperature pattern between two successive temperature warmest points or two
47、 successive temperature coldest points 3.104 steady state considered as being achieved when the mean values of the compartment internal temperatures as stated in 6.4.2 are within the mentioned tolerances over a temperature control cycle 4 Measurement methods and acoustical environments This clause o
48、f Part 1 is applicable except as follows: 8 60704-2-14 IEC:2013(E) 4.2 Direct method Addition: NOTE 101 If pure tone components are present in the noise emitted by the source, the estimated standard deviation of the measured sound pressure levels in the special reverberation room can increase. In su
49、ch cases additional microphone positions or source positions could be necessary as specified in ISO 3743-2. 4.3 Comparison method Addition: NOTE 101 If pure tone components are present in the noise emitted by the source, the estimated standard deviation of the measured sound pressure levels in the hard-walled test room or in the special reverberation room can increase. In such cases additional microphone positions or source positions could be necessary as specified in ISO 3
