IEC 60704-1:2010
(Main)Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 1: General requirements
Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 1: General requirements
IEC 60704-1:2010 applies to electric appliances (including their accessories or components) for household and similar use, supplied from mains or from batteries. By similar use is understood to be the use in similar conditions as in households, for example in inns, coffee-houses, tea-rooms, hotels, barber or hairdresser shops, launderettes, etc., if not otherwise specified in part 2. The principal changes in this edition as compared to the previous edition are as follows: includes a description of an appropriate test enclosure for appliances to be built in.
Appareils électrodomestiques et analogues - Code d'essai pour la détermination du bruit aérien - Partie 1: Exigences générales
La CEI 60704-1:2010 s'applique aux appareils électriques pour usages domestiques et analogues, y compris leurs accessoires ou composants, alimentés à partir du réseau ou par piles ou accumulateurs. Par usages analogues on entend les usages dans des conditions similaires à celles des foyers domestiques, par exemple dans les restaurants, cafés, salons de thé, hôtels, salons de coiffure, laveries, etc., sauf spécification contraire dans la partie 2. Les changements principaux par rapport à l'édition précédente sont les suivants: comprend également la description d'un meuble d'essai approprié pour les appareils à encastrer.
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IEC 60704-1 ®
Edition 3.0 2010-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 1: General requirements
Appareils électrodomestiques et analogues – Code d’essai pour la détermination
du bruit aérien –
Partie 1: Exigences générales
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IEC 60704-1 ®
Edition 3.0 2010-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 1: General requirements
Appareils électrodomestiques et analogues – Code d’essai pour la détermination
du bruit aérien –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
V
CODE PRIX
ICS 13.120; 97.170 ISBN 978-2-88910-255-6
– 2 – 60704-1 © IEC:2010
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope and object.7
1.1 Scope.7
1.1.1 General .7
1.1.2 Types of noise.7
1.1.3 Size of the source.7
1.2 Object .7
1.3 Measurement 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 method.10
4.3 Comparison method .11
4.4 Acoustical environments.11
4.4.1 General requirements and criterion for adequacy of the test
environment .11
4.4.2 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 conditions.12
5.3 Instrumentation for measuring operating conditions.12
6 Operation and location of appliances under test .12
6.1 Equipping and pre-conditioning of appliances.12
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 Microphone 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 sound pressure and sound power levels.19
8.1 General .19
8.2 Corrections for background noise levels .20
8.3 Corrections for the test environment.20
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 Calculation 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 rooms.21
60704-1 © IEC:2010 – 3 –
9 Information to be recorded.22
9.1 General data .22
9.2 Description of appliance under test .22
9.3 Measurement method.22
9.4 Acoustical test environment.22
9.5 Instrumentation .23
9.6 Equipment and pre-conditioning of appliance under test.23
9.7 Electric supply, water supply, etc. .23
9.8 Climatic conditions .23
9.9 Operation of the appliance under test.23
9.10 Location and mounting of the 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 9.2.24
10.3 Test conditions for the appliance .25
10.4 Acoustical data.25
Annex A (normative) Standard test table.31
Annex B (normative) Test enclosure .32
Annex C (informative) Guidelines for the design of simple test rooms with essentially
free field conditions .33
Bibliography.34
Figure 1 – Measurement surface – parallelepiped – with key microphone positions, for
floor free-standing appliances .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.
Figure 4 − Measurement surface − 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 nine microphone
positions for stand-type appliances .
...
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