EN IEC 60704-2-7:2020

Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-7: Particular requirements for fans

IEC 60704-2-7:2020 is available as IEC 60704-2-7:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60704-2-7:2020 applies to electrical fans (including their accessories and their component parts) for household and similar use, designed for AC or DC supply. The motor, the impeller and their housing, if any, form a single unit. These particular requirements apply to: – conventional fans, – table fans, – pedestal fans, – ceiling fans, – bladeless fans, – wall bracket fans, – ceiling bracket fans, – louver fans, – tower fans, – ventilating and partition ventilating fans. This standard does not apply to: – fans that are part of a ventilation system, – fans designed exclusively for industrial purposes, – fans that are part of an appliance (for example cooling fans), – fans with additional functions (for example heating, humidifying). Limitations for the use of this test code are given in the scope of IEC 60704-1. This second edition cancels and replaces the first edition published in 1997. This edition constitutes a technical revision. This edition includes the following significant changes with respect to the previous edition: a) it includes additional fan categories as defined in IEC 60879:2019 and IEC 60665:2018; b) it includes standard deviations of sound power levels in 1.3; c) a comparison method has been added; d) the normative references have been updated (ISO 3744:2010 and ISO 3743-1:2010); e) it has been adjusted with regard to IEC 60704-1:2010. This International Standard is to be used in conjunction with IEC 60704 1:2010, Household and similar electrical appliances – Test code for the determination of airborne acoustical noise – Part 1: General requirements. This Part 2-7 supplements or modifies the corresponding clauses in IEC 60704-1:2010, so as to establish the test code for fans.

Elektrische Geräte für den Hausgebrauch und ähnliche Zwecke - Prüfvorschrift für die Bestimmung der Luftschallemission - Teil 2-7: Besondere Bestimmungen für Lüfter

Appareils électrodomestiques et analogues - Code d'essai pour la détermination du bruit aérien - Partie 2-7: Exigences particulières pour les ventilateurs

IEC 60704-2-7:2020 est disponible sous forme de IEC 60704-2-7:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente. L'IEC 60704-2-7:2020 s'applique aux ventilateurs électriques (y compris leurs accessoires et composants) qui sont destinés à des usages domestiques et analogues et conçus pour une alimentation en courant alternatif ou en courant continu. Le moteur, les pales et leur boîtier, le cas échéant, constituent un bloc. Ces exigences particulières s'appliquent aux: – ventilateurs conventionnels; – ventilateurs de table; – ventilateurs sur pied; – ventilateurs de plafond; – ventilateurs sans pales; – ventilateurs à applique murale; – ventilateurs à applique au plafond; – ventilateurs rotatifs; – ventilateurs à colonne; – aérateurs et aérateurs de cloison. La présente norme ne s'applique pas aux: – ventilateurs qui font partie intégrante d'un système de ventilation; – ventilateurs conçus exclusivement pour des usages industriels; – ventilateurs qui font partie d'un appareil (par exemple les ventilateurs de refroidissement); – ventilateurs avec des fonctions supplémentaires (par exemple chauffage, humidification). Les limites d'utilisation de ce code d'essai sont données dans le domaine d'application de l'IEC 60704-1. Cette deuxième édition annule et remplace la première édition parue en 1997. Cette édition constitue une révision technique. Cette édition inclut les modifications majeures suivantes par rapport à l'édition précédente: a) elle inclut des catégories de ventilateurs supplémentaires, définies dans l'IEC 60879:2019 et l'IEC 60665:2018; b) des écarts-types sont fournis pour les niveaux de puissance acoustique en 1.3; c) une méthode comparative a été ajoutée; d) les références normatives ont été mises à jour (ISO 3744:2010 et ISO 3743-1:2010); e) le présent document a fait l'objet de réajustements par rapport à l'IEC 60704-1:2010. Cette Norme Internationale doit être utilisée conjointement avec l'IEC 60704-1:2010, Appareils électrodomestiques et analogues – Code d'essai pour la détermination du bruit aérien – Partie 1: Règles générales. La présente Partie 2-7 complète ou modifie les articles correspondants de l'IEC 60704-1:2010 de façon à établir le code d'essai pour les ventilateurs.

Gospodinjski in podobni električni aparati - Preskuševalni kod za ugotavljanje zvočnega hrupa v zraku - 2-7. del: Posebne zahteve za ventilatorje

General Information

• Status: Published
• Publication Date: 26-Mar-2020
• ICS: 17.140.20 - Noise emitted by machines and equipment
• ICS: 23.120 - Ventilators. Fans. Air-conditioners
• Technical Committee: CLC/TC 59X - Consumer information related to household electrical appliances
• Drafting Committee: IEC/SC 59L - IEC_SC_59L
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 27-Mar-2020
• Completion Date: 27-Mar-2020
• Ref Project: SIST EN IEC 60704-2-7:2020 - Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-7: Particular requirements for fans

Relations

• Replaces: EN 60704-2-7:1998 - Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2: Particular requirements for fans
• Effective Date: 23-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2020
Nadomešča:
SIST EN 60704-2-7:2001
Gospodinjski in podobni električni aparati - Preskuševalni kod za ugotavljanje
zvočnega hrupa v zraku - 2-7. del: Posebne zahteve za ventilatorje
Household and similar electrical appliances - Test code for the determination of airborne
acoustical noise - Part 2-7: Particular requirements for fans
Elektrische Geräte für den Hausgebrauch und ähnliche Zwecke - Prüfvorschrift für die
Bestimmung der Luftschallemission - Teil 2-7: Besondere Bestimmungen für Lüfter
Appareils électrodomestiques et analogues - Code d'essai pour la détermination du bruit
aérien - Partie 2-7: Règles particulières pour les ventilateurs
Ta slovenski standard je istoveten z: EN IEC 60704-2-7:2020
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
23.120 Zračniki. Vetrniki. Klimatske Ventilators. Fans. Air-
naprave conditioners
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60704-2-7

NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2020
ICS 17.140.20; 23.120 Supersedes EN 60704-2-7:1998 and all of its
amendments and corrigenda (if any)
English Version
Household and similar electrical appliances - Test code for the
determination of airborne acoustical noise - Part 2-7: Particular
requirements for fans
(IEC 60704-2-7:2020)
Appareils électrodomestiques et analogues - Code d'essai Elektrische Geräte für den Hausgebrauch und ähnliche
pour la détermination du bruit aérien - Partie 2-7: Exigences Zwecke - Prüfvorschrift für die Bestimmung der
particulières pour les ventilateurs Luftschallemission - Teil 2-7: Besondere Bestimmungen für
(IEC 60704-2-7:2020) Lüfter
(IEC 60704-2-7:2020)
This European Standard was approved by CENELEC on 2020-02-27. 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 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 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, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60704-2-7:2020 E

European foreword
The text of document 59L/168/CDV, future edition 2 of IEC 60704-2-7, prepared by SC 59L "Small
household appliances" of IEC/TC 59 "Performance of household and similar electrical appliances" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 60704-2-7:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-11-27
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-02-27
document have to be withdrawn
This document supersedes EN 60704-2-7:1998 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 60704-2-7:2020 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60665:2018 NOTE Harmonized as EN IEC 60665:2019 (not modified)
IEC 60879:2019 NOTE Harmonized as EN 60879:2019 (not modified)

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Clause 2 of Part 1 is applicable except as follows:
Publication Year Title EN/HD Year
ISO 3743-1 2010 Acoustics - Determination of sound power EN ISO 3743-1 2010
levels and sound energy levels of noise
sources using sound pressure - Engineering
methods for small movable sources in
reverberant fields - Part 1: Comparison
method for a hard-walled test room
ISO 3744 2010 Acoustics - Determination of sound power EN ISO 3744 2010
levels and sound energy levels of noise
sources using sound pressure - Engineering
methods for an essentially free field over a
reflecting plane
Add the following references:
Publication Year Title EN/HD Year
IEC 60704-1 2010 Household and similar electrical appliances - EN 60704-1 2010
Test code for the determination of airborne
acoustical noise - Part 1: General
requirements
+ A11 2012
IEC 60704-2-7 ®
Edition 2.0 2020-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances –

Test code for the determination of airborne acoustical noise –

Part 2-7: Particular requirements for fans

Appareils électrodomestiques et analogues –

Code d'essai pour la détermination du bruit aérien –

Partie 2-7: Exigences particulières pour les ventilateurs

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.140.20; 23.120 ISBN 978-2-8322-7712-6

– 2 – IEC 60704-2-7:2020 © IEC 2020
CONTENTS
FOREWORD . 3
1 Scope and object . 6
2 Normative references . 7
3 Terms and definitions . 8
4 Measurement methods and acoustical environments . 10
5 Instrumentation . 10
6 Operation and location of appliances under test . 10
7 Measurement of sound pressure levels . 12
8 Calculation of sound pressure and sound power levels . 13
9 Information to be recorded . 13
10 Information to be reported . 13
Annexes . 15
Annex B (normative) Test enclosure . 15
Bibliography . 15

Figure 101 – Measurement surface – hemisphere – with 10 microphone positions for
partition (wall and window) fans and for wall-mounted table fans . 14

Table 101 – Standard deviations of sound power levels . 7
Table 102 – Standard deviations for declaration and verification . 7

IEC 60704-2-7:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION OF
AIRBORNE ACOUSTICAL NOISE –
Part 2-7: Particular requirements for fans

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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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 drawn 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 60704-2-7 has been prepared by subcommittee 59L: Small
household appliances, of IEC technical committee 59: Performance of household and similar
electrical appliances.
This second edition cancels and replaces the first edition published in 1997. This edition
constitutes a technical revision.
This edition includes the following significant changes with respect to the previous edition:
a) it includes additional fan categories as defined in IEC 60879:2019 and IEC 60665:2018;
b) it includes standard deviations of sound power levels in 1.3;
c) a comparison method has been added;
d) the normative references have been updated (ISO 3744:2010 and ISO 3743-1:2010);
e) it has been adjusted with regard to IEC 60704-1:2010.

– 4 – IEC 60704-2-7:2020 © IEC 2020
The text of this standard is based on the following documents:
CDV Report on voting
59L/168/CDV 59L/174/RVC
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 document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IE
...