Household and similar electrical appliances - Test code for the determination of airborne acoustical noise -- Part 2: Particular requirements for fans

EN following parallel vote

Elektrische Geräte für den Hausgebrauch und ähnliche Zwecke - Prüfvorschrift für die Bestimmung der Luftschallemission -- Teil 2: Besondere Bestimmungen für Lüfter

Appareils électrodomestiques et analogues - Code d'essai pour la détermination du bruit aérien -- Partie 2: Règles particulières pour les ventilateurs

S'applique aux ventilateurs électriques y compris leurs accessoires et parties composantes pour usages domestiques et analogues, alimentés par le réseau ou par accumulateurs. Le moteur, l'hélice et leur enveloppe, s'il y en a une, forment un élément unique. S'applique aux ventilateurs de table, ventilateurs à colonne, ventilateurs de plafond, ventilateurs de cloison.

Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2: Particular requirements for fans

General Information

Status
Published
Publication Date
31-Jan-2001
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Feb-2001
Due Date
01-Feb-2001
Completion Date
01-Feb-2001

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SLOVENSKI STANDARD
SIST EN 60704-2-7:2001
01-februar-2001
Household and similar electrical appliances - Test code for the determination of
airborne acoustical noise - Part 2: Particular requirements for fans

Household and similar electrical appliances - Test code for the determination of airborne

acoustical noise -- Part 2: Particular requirements for fans

Elektrische Geräte für den Hausgebrauch und ähnliche Zwecke - Prüfvorschrift für die

Bestimmung der Luftschallemission -- Teil 2: Besondere Bestimmungen für Lüfter

Appareils électrodomestiques et analogues - Code d'essai pour la détermination du bruit

aérien -- Partie 2: Règles particulières pour les ventilateurs
Ta slovenski standard je istoveten z: EN 60704-2-7:1998
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
23.120 =UDþQLNL9HWUQLNL.OLPDWVNH Ventilators. Fans. Air-
QDSUDYH conditioners
SIST EN 60704-2-7:2001 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60704-2-7:2001
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SIST EN 60704-2-7:2001
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SIST EN 60704-2-7:2001
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SIST EN 60704-2-7:2001
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SIST EN 60704-2-7:2001
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SIST EN 60704-2-7:2001
NORME
CEI
INTERNATIONALE
IEC
60704-2-7
INTERNATIONAL
Première édition
STANDARD
First edition
1997-09
Appareils électrodomestiques et analogues –
Code d'essai pour la détermination
du bruit aérien –
Partie 2:
Règles particulières pour les ventilateurs
Household and similar electrical appliances –
Test code for the determination
of airborne acoustical noise –
Part 2:
Particular requirements for fans
 IEC 1997 Droits de reproduction réservés  Copyright - all rights reserved

Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in

utilisée sous quelque forme que ce soit et par aucun any form or by any means, electronic or mechanical,

procédé, électronique ou mécanique, y compris la photo- including photocopying and microfilm, without permission in

copie et les microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.

International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue
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SIST EN 60704-2-7:2001
60704-2-7 © IEC:1997 – 3 –
CONTENTS
Page

FOREWORD ................................................................................................................... 5

INTRODUCTION ............................................................................................................. 7

Clause

1 Scope and object ...................................................................................................... 9

2 Normative references................................................................................................ 11

3 Terms and definitions................................................................................................ 11

4 Measurement methods and acoustical environments ................................................. 11

5 Instrumentation ......................................................................................................... 13

6 Operation and location of appliances under test......................................................... 13

7 Measurement of sound pressure levels...................................................................... 15

8 Calculation of sound pressure and sound power levels .............................................. 17

9 Information to be recorded ........................................................................................ 17

10 Information to be reported ......................................................................................... 17

Figure 101....................................................................................................................... 19

Annexes

A Guidelines for the design of simple test rooms with essentially free-field conditions ... 21

B Standard test table.................................................................................................... 21

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SIST EN 60704-2-7:2001
60704-2-7 © IEC:1997 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION OF
AIRBORNE ACOUSTICAL NOISE –
Part 2: Particular requirements for fans
FOREWORD

1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, the IEC publishes International Standards. Their preparation 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. The IEC collaborates closely with the International Organization

for Standardization (ISO) in accordance with conditions determined by agreement between the two

organizations.

2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an

international consensus of opinion on the relevant subjects since each technical committee has representation

from all interested National Committees.

3) The documents produced have the form of recommendations for international use and are published in the form

of standards, technical reports or guides and they are accepted by the National Committees in that sense.

4) In order to promote international unification, IEC National Committees undertake to apply IEC International

Standards transparently to the maximum extent possible in their national and regional standards. Any

divergence between the IEC Standard and the corresponding national or regional standard shall be clearly

indicated in the latter.

5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any

equipment declared to be in conformity with one of its standards.

6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject

of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 60704-2-7 has been prepared by of IEC technical committee 59:

Performance of household electrical appliances.
The text of this standard is based on the following documents:
FDIS Report on voting
59/179/FDIS 59/189/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 Part 2 is intended to be used in conjunction with IEC 60704-1, second edition, 1997:

Household and similar electrical appliances – Test code for the determination of airborne

acoustical noise – Part 1: General requirements.

The relevant text of Part 1 as amended by this standard establishes the test code for fans.

This Part 2 supplements or modifies the corresponding clauses in IEC 60704-1. When a

particular subclause of Part 1 is not mentioned in this Part 2, that subclause applies as far as is

reasonable. Where this standard states "addition", "modification" or "replacement", the relevant

requirement, test specification or explanatory matter in Part 1 should be adapted accordingly.

Subclauses or figures which are additional to those in Part 1 are numbered starting from 101.

Additional annexes are lettered AA, BB, etc.
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SIST EN 60704-2-7:2001
60704-2-7 © IEC:1997 – 7 –
INTRODUCTION

The measuring conditions specified in this Part 2 provide for sufficient accuracy in determining

the noise emitted, and the comparison of the results of measurements taken by different

laboratories, whilst simulating as far as possible the practical use of household fans.

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 fans.

NOTE – As stated in the introduction to IEC 60704-1, this test code is concerned with airborne noise only.

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