Household and similar electrical appliances - Safety - Part 2-31: Particular requirements for range hoods

Deals with the safety of electric range hoods intended to be installed above household cooking ranges, hobs, and similar cooking appliances, their rated voltage being not more than 250 V.

Appareils électrodomestiques et analogues - Sécurité - Partie 2-31: Règles particulières pour les hottes de cuisine

Traite de la sécurité des hottes de cuisine électriques prévues pour être installées au-dessus de cuisinières, de tables de cuisson et d'appareils de cuisson analogues et dont la tension assignée n'est pas supérieure à 250 V

General Information

Status
Published
Publication Date
27-Jan-2009
Current Stage
DELPUB - Deleted Publication
Start Date
07-Nov-2012
Completion Date
26-Oct-2025
Ref Project

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Standard
IEC 60335-2-31:2002 - Household and similar electrical appliances - Safety - Part 2-31: Particular requirements for range hoods Released:10/21/2002 Isbn:2831866820
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IEC 60335-2-31:2002 - Household and similar electrical appliances - Safety - Part 2-31: Particular requirements for range hoods Released:10/21/2002 Isbn:2831879116
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IEC 60335-2-31:2002+AMD1:2006 CSV - Household and similar electrical appliances - Safety - Part 2-31: Particular requirements for range hoods Released:5/29/2006 Isbn:283188618X
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IEC 60335-2-31:2002+AMD1:2006+AMD2:2008 CSV - Household and similar electrical appliances - Safety - Part 2-31: Particular requirements for range hoods and other cooking fume extractors Released:1/28/2009 Isbn:9782889101511
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Standards Content (Sample)


INTERNATIONAL IEC
STANDARD
60335-2-31
Fourth edition
2002-10
Household and similar electrical appliances –
Safety –
Part 2-31:
Particular requirements for range hoods
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-31:
Règles particulières pour les hottes de cuisine
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,
edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
Further information on IEC publications
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology. Information relating to
this publication, including its validity, is available in the IEC Catalogue of
publications (see below) in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is also available from the following:
• IEC Web Site (www.iec.ch)
• Catalogue of IEC publications
The on-line catalogue on the IEC web site (http://www.iec.ch/searchpub/cur_fut.htm)
enables you to search by a variety of criteria including text searches, technical
committees and date of publication. On-line information is also available on
recently issued publications, withdrawn and replaced publications, as well as
corrigenda.
• IEC Just Published
This summary of recently issued publications (http://www.iec.ch/online_news/
justpub/jp_entry.htm) is also available by email. Please contact the Customer
Service Centre (see below) for further information.
• Customer Service Centre
If you have any questions regarding this publication or need further assistance,
please contact the Customer Service Centre:
Email: custserv@iec.ch
Tel: +41 22 919 02 11
Fax: +41 22 919 03 00
INTERNATIONAL IEC
STANDARD
60335-2-31
Fourth edition
2002-10
Household and similar electrical appliances –
Safety –
Part 2-31:
Particular requirements for range hoods
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-31:
Règles particulières pour les hottes de cuisine
 IEC 2002  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch  Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
M
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 60335-2-31  IEC:2002(E)
CONTENTS
FOREWORD . 3
INTRODUCTION .5
1 Scope . 6
2 Normative references. 6
3 Definitions . 6
4 General requirement . 7
5 General conditions for the tests . 7
6 Classification . 7
7 Marking and instructions . 7
8 Protection against access to live parts . 8
9 Starting of motor-operated appliances . 8
10 Power input and current. 8
11 Heating. 8
12 Void . 9
13 Leakage current and electric strength at operating temperature . 9
14 Transient overvoltages. 9
15 Moisture resistance. 9
16 Leakage current and electric strength . 9
17 Overload protection of transformers and associated circuits. 9
18 Endurance . 9
19 Abnormal operation. 9
20 Stability and mechanical hazards.10
21 Mechanical strength.10
22 Construction .10
23 Internal wiring.10
24 Components .11
25 Supply connection and external flexible cords.11
26 Terminals for external conductors .11
27 Provision for earthing.11
28 Screws and connections .11
29 Clearances, creepage distances and solid insulation .11
30 Resistance to heat and fire .11
31 Resistance to rusting .12
32 Radiation, toxicity and similar hazards .12
Annexes.13
Bibliography.13

60335-2-31  IEC:2002(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-31: Particular requirements for range hoods
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 specifications, 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.
This part of International Standard IEC 60335 has been prepared by IEC technical committee
61: Safety of household and similar electrical appliances.
This fourth edition cancels and replaces the third edition published in 1995 and its
amendment 1 (1998). It constitutes a technical revision.
The text of this part of IEC 60335 is based on the following documents:
FDIS Report on voting
61/2206/FDIS 61/2289/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 to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fourth edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for electric range hoods.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. When this standard states “addition”, “modification” or “replacement”,
the relevant text in Part 1 is to be adapted accordingly.

– 4 – 60335-2-31  IEC:2002(E)
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– 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;
– additional annexes are lettered AA, BB, etc.
NOTE 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
The committee has decided that the contents of this publication will remain unchanged until
2004. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
The following differences exist in the countries indicated below.
– 7.12: Warnings are required to be marked on the range hood (USA).
– 7.12.1: Additional requirements are specified for range hoods intended to be placed above gas hobs
(Sweden).
– 8.2: The insulation of internal wiring need not be equivalent to IEC 60227 or IEC 60245 (USA).
– 11.2: The test method is different (USA).
– 19.101: The test method is different (USA).
– 20.2: The addition applies only to disposable filters (USA).
– 22.101: Additional fixing means are not required if screws can be tightened in keyhole slots (USA).
– 22.102: Parts located behind a filter are considered to be parts that have to be cleaned (Sweden).
– 30.101: The method of evaluating filters is different (USA).
A bilingual version of this standard may be issued at a later date.

60335-2-31  IEC:2002(E) – 5 –
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in
normal use taking into account the manufacturer's instructions. It also covers abnormal
situations that can be expected in practice.
This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply
mains. However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of
the requirements and, if found to be substantially equivalent, may be considered to comply
with the standard.
– 6 – 60335-2-31  IEC:2002(E)
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-31: Particular requirements for range hoods
1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of electric range hoods intended for
installing above household cooking ranges, hobs and similar cooking appliances, their rated
voltage being not more than 250 V.
NOTE 101 The cooking appliance may be supplied by electricity or other fuels, such as gas.
Appliances not intended for normal household use but
...


NORME CEI
INTERNATIONALE IEC
60335-2-31
INTERNATIONAL
Quatrième édition
STANDARD
Fourth edition
2002-10
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-31:
Règles particulières pour les hottes de cuisine

Household and similar electrical appliances –
Safety –
Part 2-31:
Particular requirements for range hoods

Numéro de référence
Reference number
CEI/IEC 60335-2-31:2002
Numérotation des publications Publication numbering
Depuis le 1er janvier 1997, les publications de la CEI As from 1 January 1997 all IEC publications are
sont numérotées à partir de 60000. Ainsi, la CEI 34-1 issued with a designation in the 60000 series. For
devient la CEI 60034-1. example, IEC 34-1 is now referred to as IEC 60034-1.
Editions consolidées Consolidated editions
Les versions consolidées de certaines publications de la The IEC is now publishing consolidated versions of its
CEI incorporant les amendements sont disponibles. Par publications. For example, edition numbers 1.0, 1.1
exemple, les numéros d’édition 1.0, 1.1 et 1.2 indiquent and 1.2 refer, respectively, to the base publication,
respectivement la publication de base, la publication de the base publication incorporating amendment 1 and
base incorporant l’amendement 1, et la publication de the base publication incorporating amendments 1
base incorporant les amendements 1 et 2. and 2.
Informations supplémentaires Further information on IEC publications
sur les publications de la CEI
Le contenu technique des publications de la CEI est The technical content of IEC publications is kept
constamment revu par la CEI afin qu'il reflète l'état under constant review by the IEC, thus ensuring that
actuel de la technique. Des renseignements relatifs à the content reflects current technology. Information
cette publication, y compris sa validité, sont dispo- relating to this publication, including its validity, is
nibles dans le Catalogue des publications de la CEI available in the IEC Catalogue of publications
(voir ci-dessous) en plus des nouvelles éditions, (see below) in addition to new editions, amendments
amendements et corrigenda. Des informations sur les and corrigenda. Information on the subjects under
sujets à l’étude et l’avancement des travaux entrepris consideration and work in progress undertaken by the
par le comité d’études qui a élaboré cette publication, technical committee which has prepared this
ainsi que la liste des publications parues, sont publication, as well as the list of publications issued,
également disponibles par l’intermédiaire de: is also available from the following:
• Site web de la CEI (www.iec.ch) • IEC Web Site (www.iec.ch)
• Catalogue des publications de la CEI • Catalogue of IEC publications
Le catalogue en ligne sur le site web de la CEI The on-line catalogue on the IEC web site
(www.iec.ch/searchpub) vous permet de faire des (www.iec.ch/searchpub) enables you to search by a
recherches en utilisant de nombreux critères, variety of criteria including text searches,
comprenant des recherches textuelles, par comité technical committees and date of publication. On-
d’études ou date de publication. Des informations en line information is also available on recently
ligne sont également disponibles sur les nouvelles issued publications, withdrawn and replaced
publications, les publications remplacées ou retirées, publications, as well as corrigenda.
ainsi que sur les corrigenda.
• IEC Just Published • IEC Just Published
Ce résumé des dernières publications parues This summary of recently issued publications
(www.iec.ch/online_news/justpub) est aussi dispo- (www.iec.ch/online_news/justpub) is also available
nible par courrier électronique. Veuillez prendre by email. Please contact the Customer Service
contact avec le Service client (voir ci-dessous) Centre (see below) for further information.
pour plus d’informations.
• Service clients • Customer Service Centre
Si vous avez des questions au sujet de cette If you have any questions regarding this
publication ou avez besoin de renseignements publication or need further assistance, please
supplémentaires, prenez contact avec le Service contact the Customer Service Centre:
clients:
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Tél: +41 22 919 02 11 Tel: +41 22 919 02 11
Fax: +41 22 919 03 00 Fax: +41 22 919 03 00
.
NORME CEI
INTERNATIONALE IEC
60335-2-31
INTERNATIONAL
Quatrième édition
STANDARD
Fourth edition
2002-10
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-31:
Règles particulières pour les hottes de cuisine

Household and similar electrical appliances –
Safety –
Part 2-31:
Particular requirements for range hoods

 IEC 2002 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 any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale PRICE CODE M
International Electrotechnical Commission
Международная Электротехническая Комиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

– 2 – 60335-2-31  CEI:2005
SOMMAIRE
AVANT-PROPOS.4
INTRODUCTION.8

1 Domaine d’application .10
2 Références normatives .10
3 Définitions .10
4 Exigences générales .12
5 Conditions générales d’essais.12
6 Classification.12
7 Marquage et instructions.12
8 Protection contre l’accès aux parties actives .14
9 Démarrage des appareils à moteur .14
10 Puissance et courant .14
11 Echauffements .14
12 Vacant .16
13 Courant de fuite et rigidité diélectrique à la température de régime.16
14 Surtensions transitoires .16
15 Résistance à l’humidité.16
16 Courant de fuite et rigidité diélectrique.16
17 Protection contre la surcharge des transformateurs et des circuits associés.16
18 Endurance.16
19 Fonctionnement anormal .16
20 Stabilité et dangers mécaniques .18
21 Résistance mécanique.18
22 Construction.18
23 Conducteurs internes.20
24 Composants .20
25 Raccordement au réseau et câbles souples extérieurs .20
26 Bornes pour conducteurs externes .20
27 Dispositions en vue de la mise à la terre .20
28 Vis et connexions .20
29 Distances dans l'air, lignes de fuite et isolation solide.20
30 Résistance à la chaleur et au feu .22
31 Protection contre la rouille .22
32 Rayonnement, toxicité et dangers analogues .22

Annexes .24

Bibliographie .24

60335-2-31  IEC:2005 – 3 –
CONTENTS
FOREWORD.5
INTRODUCTION.9

1 Scope .11
2 Normative references .11
3 Definitions .11
4 General requirement.13
5 General conditions for the tests .13
6 Classification.13
7 Marking and instructions .13
8 Protection against access to live parts .15
9 Starting of motor-operated appliances.15
10 Power input and current.15
11 Heating .15
12 Void .17
13 Leakage current and electric strength at operating temperature .17
14 Transient overvoltages .17
15 Moisture resistance .17
16 Leakage current and electric strength .17
17 Overload protection of transformers and associated circuits .17
18 Endurance.17
19 Abnormal operation .17
20 Stability and mechanical hazards .19
21 Mechanical strength .19
22 Construction.19
23 Internal wiring.21
24 Components .21
25 Supply connection and external flexible cords .21
26 Terminals for external conductors .21
27 Provision for earthing.21
28 Screws and connections .21
29 Clearances, creepage distances and solid insulation .21
30 Resistance to heat and fire .23
31 Resistance to rusting .23
32 Radiation, toxicity and similar hazards .23

Annexes .25

Bibliography .25

– 4 – 60335-2-31  CEI:2005
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
SÉCURITÉ –
Partie 2-31: Règles particulières pour les hottes de cuisine

AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a
pour objet de favoriser la coopération internationale pour toutes les questions de normalisation dans les
domaines de l'électricité et de l'électronique. A cet effet, la CEI – entre autres activités – publie des Normes
internationales, des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au
public (PAS) et des Guides (ci-après dénommés "Publication(s) de la CEI"). Leur élaboration est confiée à des
comités d'études, aux travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les
organisations internationales, gouvernementales et non gouvernementales, en liaison avec la CEI, participent
également aux travaux. La CEI collabore étroitement avec l'Organisation Internationale de Normalisation (ISO),
selon des conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de la CEI concernant les questions techniques représentent, dans la mesure
du possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de la CEI
intéressés sont représentés dans chaque comité d’études.
3) Les Publications de la CEI se présentent sous la forme de recommandations internationales et sont agréées
comme telles par les Comités nationaux de la CEI. Tous les efforts raisonnables sont entrepris afin que la CEI
s'assure de l'exactitude du contenu technique de ses publications; la CEI ne peut pas être tenue responsable
de l'éventuelle mauvaise utilisation ou interprétation qui en est faite par un quelconque utilisateur final.
4) Dans le but d'encourager l'uniformité internationale, les Comités nationaux de la CEI s'engagent, dans toute la
mesure possible, à appliquer de façon transparente les Publications de la CEI dans leurs publications
nationales et régionales. Toutes divergences entre toutes Publications de la CEI et toutes publications
nationales ou régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.
5) La CEI n’a prévu aucune procédure de marquage valant indication d’approbation et n'engage pas sa
responsabilité pour les équipements déclarés conformes à une de ses Publications.
6) Tous les utilisateurs doivent s'assurer qu'ils sont en possession de la dernière édition de cette publication.
7) Aucune responsabilité ne doit être imputée à la CEI, à ses administrateurs, employés, auxiliaires ou
mandataires, y compris ses experts particuliers et les membres de ses comités d'études et des Comités
nationaux de la CEI, pour tout préjudice causé en cas de dommages corporels et matériels, ou de tout autre
dommage de quelque nature que ce soit, directe ou indirecte, ou pour supporter les coûts (y compris les frais
de justice) et les dépenses découlant de la publication ou de l'utilisation de cette Publication de la CEI ou de
toute autre Publication de la CEI, ou au crédit qui lui est accordé.
8) L'attention est attirée sur les références normatives citées dans cette publication. L'utilisation de publications
référencées est obligatoire pour une application correcte de la présente publication.
9) L’attention est attirée sur le fait que certains des éléments de la présente Publication de la CEI peuvent faire
l’objet de droits de propriété intellectuelle ou de droits analogues. La CEI ne saurait être tenue pour
responsable de ne pas avoir identifié de tels droits de propriété et de ne pas avoir signalé leur existence.
La présente partie de la Norme internationale CEI 60335 a été établie par le comité d'études
61 de la CEI: Sécurité des appareils électrodomestiques et analogues.
Cette quatrième édition annule et remplace la troisième édition parue en 1995 et son
amendement 1 (1998), dont elle constitue une révision technique.
Cette version bilingue (2005-04) remplace la version monolingue anglaise.
Le texte anglais de cette norme est issu des documents 61/2206/FDIS et 61/2289/RVD. Le
rapport de vote 61/2289/RVD donne toute information sur le vote ayant abouti à l’approbation
de cette norme.
60335-2-31  IEC:2005 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-31: Particular requirements for range hoods

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 standardization 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 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. 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 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 IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, 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 arising 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 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.
This part of International Standard IEC 60335 has been prepared by IEC technical committee
61: Safety of household and similar electrical appliances.
This fourth edition cancels and replaces the third edition published in 1995 and its
amendment 1 (1998). It constitutes a technical revision.
This bilingual version (2005-04) replaces the English version.
The text of this part of IEC 60335 is based on the following documents:
FDIS Report on voting
61/2206/FDIS 61/2289/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.

– 6 – 60335-2-31  CEI:2005
La version française de cette norme n’a pas été soumise au vote.
La présente partie 2 doit être utilisée conjointement avec la dernière édition de la
CEI 60335-1 et ses amendements. Elle a été établie sur la base de la quatrième édition
(2001) de cette norme.
NOTE 1 L’expression “Partie 1” utilisée dans la présente norme fait référence à la CEI 60335-1.
La présente partie 2 complète ou modifie les articles correspondants de la CEI 60335-1, de
façon à transformer cette publication en norme CEI: Règles de sécurité pour les hottes
électriques de cuisine.
Lorsqu'un paragraphe particulier de la Partie 1 n'est pas mentionné dans cette partie 2, ce
paragraphe s'applique pour autant qu’il est raisonnable. Lorsque la présente norme spécifie
“addition”, “modification” ou “remplacement”, le texte correspondant de la Partie 1 doit être
adapté en conséquence.
NOTE 2 Le système de numérotation suivant est utilisé:
– paragraphes, tableaux et figures: ceux qui sont numérotés à partir de 101 sont complémentaires à ceux de la
Partie 1;
– notes: à l’exception de celles qui sont dans un nouveau paragraphe ou de celles qui concernent des notes de
la Partie 1, les notes sont numérotées à partir de 101, y compris celles des articles ou paragraphes qui sont
modifiés ou remplacés;
– les annexes supplémentaires sont appelées AA, BB, etc.
NOTE 3 Les caractères d'imprimerie suivants sont utilisés:
– exigences: caractères romains;
– modalités d'essais: caractères italiques;
– notes: petits caractères romains.
Les mots en gras dans le texte sont définis à l'Article 3. Lorsqu'une définition concerne un adjectif, l'adjectif et le
nom associé figurent également en gras.
Les différences suivantes existent dans les pays indiqués ci-après.
– 7.12: Les mises en garde doivent être portées sur la hotte (USA).
– 7.12.1: Des exigences complémentaires sont spécifiées pour les hottes de cuisine destinées à être placées
au-dessus de tables de cuisson à gaz (Suède).
– 8.2: L'isolation des conducteurs internes ne doit pas nécessairement être équivalente à celle des câbles
conformes à la CEI 60227 ou à la CEI 60245 (USA).
– 11.2: La méthode d’essai est différente (USA).
– 19.101: La méthode d’essai est différente (USA).
– 20.2: L'addition ne s'applique qu'aux filtres jetables (USA).
– 22.101: Des moyens de fixation supplémentaires ne sont pas nécessaires si les vis peuvent être serrées dans
des fentes en trou de serrure (USA).
– 22.102: Les parties situées derrière un filtre sont considérées comme étant des parties qui doivent être
nettoyées (Suède).
– 30.101: La méthode d'évaluation des filtres est différente (USA).
Le comité a décidé que le contenu de cette publication ne sera pas modifié avant la date de
maintenance indiquée sur le site web de la CEI sous «http://webstore.iec.ch» dans les
données relatives à la publication recherchée. A cette date, la publication sera
• reconduite;
• supprimée;
• remplacée par une édition révisée, ou
• amendée.
60335-2-31  IEC:2005 – 7 –
The French version of this standard has not been voted upon.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fourth edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for electric range hoods.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. When this standard states “addition”, “modification” or “replacement”,
the relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– 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;
– additional annexes are lettered AA, BB, etc.
NOTE 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
The following differences exist in the countries indicated below.
– 7.12: Warnings are required to be marked on the range hood (USA).
– 7.12.1: Additional requirements are specified for range hoods intended to be placed above gas hobs
(Sweden).
– 8.2: The insulation of internal wiring need not be equivalent to IEC 60227 or IEC 60245 (USA).
– 11.2: The test method is different (USA).
– 19.101: The test method is different (USA).
– 20.2: The addition applies only to disposable filters (USA).
– 22.101: Additional fixing means are not required if screws can be tightened in keyhole slots (USA).
– 22.102: Parts located behind a filter are considered to be parts that have to be cleaned (Sweden).
– 30.101: The method of evaluating filters is different (USA).

The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site 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.
– 8 – 60335-2-31  CEI:2005
INTRODUCTION
Il a été considéré en établissant la présente Norme internationale que l'exécution de ses
dispositions était confiée à des personnes expérimentées et ayant une qualification
appropriée.
Cette norme reconnaît le niveau de protection internationalement accepté contre les risques
électriques, mécaniques, thermiques, liés au feu et au rayonnement des appareils, lorsqu'ils
fonctionnent comme en usage normal en tenant compte des instructions du fabricant. Elle
couvre également les situations anormales auxquelles on peut s'attendre dans la pratique.
Cette norme tient compte autant que possible des exigences de la CEI 60364, de façon à
rester compatible avec les règles d'installation quand l’appareil est raccordé au réseau
d’alimentation. Cependant, des règles nationales d'installation peuvent être différentes.
Si un appareil compris dans le domaine d’application de cette norme comporte également des
fonctions qui sont couvertes par une autre partie 2 de la CEI 60335, la partie 2
correspondante est appliquée à chaque fonction séparément, dans la limite du raisonnable. Si
cela est applicable, on tient compt
...


IEC 60335-2-31
Edition 4.1 2006-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-31: Particular requirements for range hoods

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-31: Règles particulières pour les hottes de cuisine

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publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

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IEC 60335-2-31
Edition 4.1 2006-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-31: Particular requirements for range hoods

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-31: Règles particulières pour les hottes de cuisine

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CD
CODE PRIX
ICS 13.120; 97.040.20 ISBN 2-8318-8618-X

– 2 – 60335-2-31  CEI:2002+A1:2006

SOMMAIRE
AVANT-PROPOS.4

INTRODUCTION.8

1 Domaine d’application .10

2 Références normatives.10

3 Définitions .10

4 Exigences générales .12

5 Conditions générales d’essais .12
6 Classification.12
7 Marquage et instructions .12
8 Protection contre l’accès aux parties actives .14
9 Démarrage des appareils à moteur.14
10 Puissance et courant .14
11 Echauffements .14
12 Vacant.16
13 Courant de fuite et rigidité diélectrique à la température de régime .16
14 Surtensions transitoires.16
15 Résistance à l’humidité.16
16 Courant de fuite et rigidité diélectrique .16
17 Protection contre la surcharge des transformateurs et des circuits associés.16
18 Endurance.16
19 Fonctionnement anormal .16
20 Stabilité et dangers mécaniques .18
21 Résistance mécanique .18
22 Construction .18
23 Conducteurs internes .20
24 Composants .20
25 Raccordement au réseau et câbles souples extérieurs .20
26 Bornes pour conducteurs externes .20

27 Dispositions en vue de la mise à la terre .20
28 Vis et connexions .20
29 Distances dans l'air, lignes de fuite et isolation solide .20
30 Résistance à la chaleur et au feu.22
31 Protection contre la rouille.22
32 Rayonnement, toxicité et dangers analogues.22

Annexes .26

Bibliographie.26

Figure 101 – Disposition des tables de cuisson pour les essais d’échauffements.24

60335-2-31  IEC:2002+A1:2006 – 3 –

CONTENTS
FOREWORD.5

INTRODUCTION.9

1 Scope.11

2 Normative references .11

3 Definitions .11

4 General requirement.13

5 General conditions for the tests .13
6 Classification.13
7 Marking and instructions.13
8 Protection against access to live parts.15
9 Starting of motor-operated appliances .15
10 Power input and current .15
11 Heating .15
12 Void.17
13 Leakage current and electric strength at operating temperature.17
14 Transient overvoltages .17
15 Moisture resistance .17
16 Leakage current and electric strength.17
17 Overload protection of transformers and associated circuits .17
18 Endurance.17
19 Abnormal operation .17
20 Stability and mechanical hazards .19
21 Mechanical strength .19
22 Construction .19
23 Internal wiring.21
24 Components .21
25 Supply connection and external flexible cords .21
26 Terminals for external conductors.21

27 Provision for earthing .21
28 Screws and connections .21
29 Clearances, creepage distances and solid insulation .21
30 Resistance to heat and fire.23
31 Resistance to rusting.23
32 Radiation, toxicity and similar hazards.23

Annexes .27

Bibliography.27

Figure 101 – Hob layout for the heating test.25

– 4 – 60335-2-31 © CEI:2002+A1:2006

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE

____________
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –

SÉCURITÉ –
Partie 2-31: Règles particulières pour les hottes de cuisine

AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a
pour objet de favoriser la coopération internationale pour toutes les questions de normalisation dans les
domaines de l'électricité et de l'électronique. A cet effet, la CEI – entre autres activités – publie des Normes
internationales, des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au
public (PAS) et des Guides (ci-après dénommés "Publication(s) de la CEI"). Leur élaboration est confiée à des
comités d'études, aux travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les
organisations internationales, gouvernementales et non gouvernementales, en liaison avec la CEI, participent
également aux travaux. La CEI collabore étroitement avec l'Organisation Internationale de Normalisation (ISO),
selon des conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de la CEI concernant les questions techniques représentent, dans la mesure
du possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de la CEI
intéressés sont représentés dans chaque comité d’études.
3) Les Publications de la CEI se présentent sous la forme de recommandations internationales et sont agréées
comme telles par les Comités nationaux de la CEI. Tous les efforts raisonnables sont entrepris afin que la CEI
s'assure de l'exactitude du contenu technique de ses publications; la CEI ne peut pas être tenue responsable
de l'éventuelle mauvaise utilisation ou interprétation qui en est faite par un quelconque utilisateur final.
4) Dans le but d'encourager l'uniformité internationale, les Comités nationaux de la CEI s'engagent, dans toute la
mesure possible, à appliquer de façon transparente les Publications de la CEI dans leurs publications
nationales et régionales. Toutes divergences entre toutes Publications de la CEI et toutes publications
nationales ou régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.
5) La CEI n’a prévu aucune procédure de marquage valant indication d’approbation et n'engage pas sa
responsabilité pour les équipements déclarés conformes à une de ses Publications.
6) Tous les utilisateurs doivent s'assurer qu'ils sont en possession de la dernière édition de cette publication.
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mandataires, y compris ses experts particuliers et les membres de ses comités d'études et des Comités
nationaux de la CEI, pour tout préjudice causé en cas de dommages corporels et matériels, ou de tout autre
dommage de quelque nature que ce soit, directe ou indirecte, ou pour supporter les coûts (y compris les frais
de justice) et les dépenses découlant de la publication ou de l'utilisation de cette Publication de la CEI ou de
toute autre Publication de la CEI, ou au crédit qui lui est accordé.
8) L'attention est attirée sur les références normatives citées dans cette publication. L'utilisation de publications
référencées est obligatoire pour une application correcte de la présente publication.
9) L’attention est attirée sur le fait que certains des éléments de la présente Publication de la CEI peuvent faire

l’objet de droits de propriété intellectuelle ou de droits analogues. La CEI ne saurait être tenue pour
responsable de ne pas avoir identifié de tels droits de propriété et de ne pas avoir signalé leur existence.
La présente partie de la Norme internationale CEI 60335 a été établie par le comité d'études
61 de la CEI: Sécurité des appareils électrodomestiques et analogues.
La présente version consolidée de la CEI 60335-2-31 comprend la quatrième édition (2002)
[documents 61/2206/FDIS et 61/2289/RVD] et son amendement 1 (2006) [documents
61/2985/FDIS et 61/3001/RVD].
Le contenu technique de cette version consolidée est donc identique à celui de l'édition de
base et à son amendement; cette version a été préparée par commodité pour l'utilisateur.
Elle porte le numéro d'édition 4.1.
Une ligne verticale dans la marge indique où la publication de base a été modifiée par
l'amendement 1.
60335-2-31 © IEC:2002+A1:2006 – 5 –

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –

SAFETY –
Part 2-31: Particular requirements for range hoods

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 standardization 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 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. 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 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 IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
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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 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.
This part of International Standard IEC 60335 has been prepared by IEC technical committee 61:
Safety of household and similar electrical appliances.
This consolidated version of IEC 60335-2-31 consists of the fourth edition (2002) [documents
61/2206/FDIS and 61/2289/RVD] and its amendment 1 (2006) [documents 61/2985/FDIS and
61/3001/RVD].
The technical content is therefore identical to the base edition and its amendment and has
been prepared for user convenience.
It bears the edition number 4.1.
A vertical line in the margin shows where the base publication has been modified by
amendment 1.
– 6 – 60335-2-31  CEI:2002+A1:2006

La version française de cette norme n’a pas été soumise au vote.

La présente partie 2 doit être utilisée conjointement avec la dernière édition de la
CEI 60335-1 et ses amendements. Elle a été établie sur la base de la quatrième édition
(2001) de cette norme.
NOTE 1 L’expression “Partie 1” utilisée dans la présente norme fait référence à la CEI 60335-1.

La présente partie 2 complète ou modifie les articles correspondants de la CEI 60335-1, de

façon à transformer cette publication en norme CEI: Règles de sécurité pour les hottes
électriques de cuisine.
Lorsqu'un paragraphe particulier de la Partie 1 n'est pas mentionné dans cette partie 2, ce
paragraphe s'applique pour autant qu’il est raisonnable. Lorsque la présente norme spécifie
“addition”, “modification” ou “remplacement”, le texte correspondant de la Partie 1 doit être
adapté en conséquence.
NOTE 2 Le système de numérotation suivant est utilisé:
– paragraphes, tableaux et figures: ceux qui sont numérotés à partir de 101 sont complémentaires à ceux de la
Partie 1;
– notes: à l’exception de celles qui sont dans un nouveau paragraphe ou de celles qui concernent des notes de
la Partie 1, les notes sont numérotées à partir de 101, y compris celles des articles ou paragraphes qui sont
modifiés ou remplacés;
– les annexes supplémentaires sont appelées AA, BB, etc.
NOTE 3 Les caractères d'imprimerie suivants sont utilisés:
– exigences: caractères romains;
– modalités d'essais: caractères italiques;
– notes: petits caractères romains.
Les mots en gras dans le texte sont définis à l'Article 3. Lorsqu'une définition concerne un adjectif, l'adjectif et le
nom associé figurent également en gras.
Les différences suivantes existent dans les pays indiqués ci-après.
– 7.12: Les mises en garde doivent être portées sur la hotte (USA).
– 7.12.1: Des exigences complémentaires sont spécifiées pour les hottes de cuisine destinées à être placées
au-dessus de tables de cuisson à gaz (Suède).
– 8.2: L'isolation des conducteurs internes ne doit pas nécessairement être équivalente à celle des câbles
conformes à la CEI 60227 ou à la CEI 60245 (USA).
– 11.2: La méthode d’essai est différente (USA).
– 19.101: La méthode d’essai est différente (USA).
– 20.2: L'addition ne s'applique qu'aux filtres jetables (USA).

– 22.101: Des moyens de fixation supplémentaires ne sont pas nécessaires si les vis peuvent être serrées dans
des fentes en trou de serrure (USA).
– 22.102: Les parties situées derrière un filtre sont considérées comme étant des parties qui doivent être
nettoyées (Suède).
– 30.101: La méthode d'évaluation des filtres est différente (USA).
Le comité a décidé que le contenu de la publication de base et de ses amendements ne sera
pas modifié avant la date de maintenance indiquée sur le site web de la CEI sous
"http://webstore.iec.ch" dans les données relatives à la publication recherchée. A cette date,
la publication sera
• reconduite,
• supprimée,
• remplacée par une édition révisée, ou
• amendée.
60335-2-31  IEC:2002+A1:2006 – 7 –

The French version of this standard has not been voted upon.

This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fourth edition (2001) of that standard.

NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.

This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to

convert that publication into the IEC standard: Safety requirements for electric range hoods.

When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies

as far as is reasonable. When this standard states “addition”, “modification” or “replacement”,
the relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– 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;
– additional annexes are lettered AA, BB, etc.
NOTE 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
The following differences exist in the countries indicated below.
– 7.12: Warnings are required to be marked on the range hood (USA).
– 7.12.1: Additional requirements are specified for range hoods intended to be placed above gas hobs
(Sweden).
– 8.2: The insulation of internal wiring need not be equivalent to IEC 60227 or IEC 60245 (USA).
– 11.2: The test method is different (USA).
– 19.101: The test method is different (USA).
– 20.2: The addition applies only to disposable filters (USA).
– 22.101: Additional fixing means are not required if screws can be tightened in keyhole slots (USA).
– 22.102: Parts located behind a filter are considered to be parts that have to be cleaned (Sweden).
– 30.101: The method of evaluating filters is different (USA).
The committee has decided that the contents of the base publication and its amendments will

remain unchanged until the maintenance result date indicated on the IEC web site 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.
– 8 – 60335-2-31  CEI:2002+A1:2006

INTRODUCTION
Il a été considéré en établissant la présente Norme internationale que l'exécution de ses

dispositions était confiée à des personnes expérimentées et ayant une qualification

appropriée.
Cette norme reconnaît le niveau de protection internationalement accepté contre les risques

électriques, mécaniques, thermiques, liés au feu et au rayonnement des appareils, lorsqu'ils

fonctionnent comme en usage normal en tenant compte des instructions du fabricant. Elle

couvre également les situations anormales auxquelles on peut s'attendre dans la pratique et

prend en considération les phénomènes électromagnétiques qui peuvent affecter le

fonctionnement en toute sécurité des appareils.
Cette norme tient compte autant que possible des exigences de la CEI 60364, de façon à
rester compatible avec les règles d'installation quand l’appareil est raccordé au réseau
d’alimentation. Cependant, des règles nationales d'installation peuvent être différentes.
Si un appareil compris dans le domaine d’application de cette norme comporte également des
fonctions qui sont couvertes par une autre partie 2 de la CEI 60335, la partie 2
correspondante est appliquée à chaque fonction séparément, dans la limite du raisonnable. Si
cela est applicable, on tient compte de l’influence d’une fonction sur les autres fonctions.
Cette norme est une norme de famille de produits traitant de la sécurité d’appareils et a
préséance sur les normes horizontales et génériques couvrant le même sujet.
Un appareil conforme au texte de la présente norme ne sera pas nécessairement jugé
conforme aux principes de sécurité de la norme si, lorsqu'il est examiné et soumis aux essais,
il apparaît qu'il présente d'autres caractéristiques qui compromettent le niveau de sécurité
visé par ces exigences.
Un appareil utilisant des matériaux ou présentant des modes de construction différents de
ceux décrits dans les exigences de cette norme peut être examiné et essayé en fonction de
l'objectif poursuivi par ces exigences et, s'il est jugé pratiquement équivalent, il peut être
estimé con
...


IEC 60335-2-31
Edition 4.2 2009-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-31: Particular requirements for range hoods and other cooking fume
extractors
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-31: Règles particulières pour les hottes de cuisine et autres extracteurs
de fumées de cuisson
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IEC 60335-2-31
Edition 4.2 2009-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-31: Particular requirements for range hoods and other cooking fume
extractors
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-31: Règles particulières pour les hottes de cuisine et autres extracteurs
de fumées de cuisson
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CF
CODE PRIX
ICS 13.120; 97.040.20 ISBN 978-2-88910-151-1
– 2 – 60335-2-31 © IEC:2002+A1:2006
+A2:2008
CONTENTS
FOREWORD.3
INTRODUCTION.5

1 Scope.6
2 Normative references .6
3 Definitions .7
4 General requirement.7
5 General conditions for the tests .7
6 Classification.7
7 Marking and instructions.7
8 Protection against access to live parts.8
9 Starting of motor-operated appliances .9
10 Power input and current .9
11 Heating .9
12 Void.10
13 Leakage current and electric strength at operating temperature.10
14 Transient overvoltages .10
15 Moisture resistance .10
16 Leakage current and electric strength.10
17 Overload protection of transformers and associated circuits .10
18 Endurance.10
19 Abnormal operation .10
20 Stability and mechanical hazards .11
21 Mechanical strength .11
22 Construction .11
23 Internal wiring.11
24 Components .12
25 Supply connection and external flexible cords .12
26 Terminals for external conductors.12
27 Provision for earthing .12
28 Screws and connections .12
29 Clearances, creepage distances and solid insulation .12
30 Resistance to heat and fire.12
31 Resistance to rusting.13
32 Radiation, toxicity and similar hazards.13

Annexes .15

Bibliography.15

Figure 101 – Hob layout for the heating test.

60335-2-31 © IEC:2002+A1:2006 – 3 –
+A2:2008
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-31: Particular requirements for range hoods
and other cooking fume extractors

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 standardization 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 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. 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 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 IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, 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 arising 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 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.
This part of International Standard IEC 60335 has been prepared by IEC technical committee 61:
Safety of household and similar electrical appliances.
This consolidated version of IEC 60335-2-31 consists of the fourth edition (2002) [documents
61/2206/FDIS and 61/2289/RVD], its amendment 1 (2006) [documents 61/2985/FDIS and
61/3001/RVD] and its amendment 2 (2008) [documents 61/3692/FDIS and 61/3746/RVD].
The technical content is therefore identical to the base edition and its amendments and has
been prepared for user convenience.
It bears the edition number 4.2.
A vertical line in the margin shows where the base publication has been modified by
amendments 1 and 2.
The French version of this standard has not been voted upon.

– 4 – 60335-2-31 © IEC:2002+A1:2006
+A2:2008
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fourth edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for electric range hoods.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. When this standard states “addition”, “modification” or “replacement”,
the relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– 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;
– additional annexes are lettered AA, BB, etc.
NOTE 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
The following differences exist in the countries indicated below.
– 7.12: Warnings are required to be marked on the range hood (USA).
– 7.12.1: Additional requirements are specified for range hoods intended to be placed above gas hobs
(Sweden).
– 8.2: The insulation of internal wiring need not be equivalent to IEC 60227 or IEC 60245 (USA).
– 11.2: The test method is different (USA).
– 19.101: The test method is different (USA).
– 20.2: The addition applies only to disposable filters (USA).
– 22.101: Additional fixing means are not required if screws can be tightened in keyhole slots (USA).
– 22.102: Parts located behind a filter are considered to be parts that have to be cleaned (Sweden).
– 30.101: The method of evaluating filters is different (USA).
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the maintenance result date indicated on the IEC web site 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.
NOTE 4 The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of the amendment 2 be adopted for implementation
nationally not earlier than 12 months or later than 36 months from the date of publication.

60335-2-31 © IEC:2002+A1:2006 – 5 –
+A2:2008
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in
normal use taking into account the manufacturer's instructions. It also covers abnormal
situations that can be expected in practice and takes into account the way in which
electromagnetic phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply
mains. However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
2 When a part 2 standard does not include additional requirements to cover hazards dealt with
in Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal and generic standards covering a hazard are not applicable since they have been taken into
consideration when developing the general and particular requirements for the IEC 60335 series of standards. For
example, in the case of temperature requirements for surfaces on many appliances, generic standards, such as
ISO 13732-1 for hot surfaces, are not applicable in addition to Part 1 or part 2 standards.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of
the requirements and, if found to be substantially equivalent, may be considered to comply
with the standard.
– 6 – 60335-2-31 © IEC:2002+A1:2006
+A2:2008
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-31: Particular requirements for range hoods
and other cooking fume extractors

1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of electric range hoods and other cooking
fume extractors intended for installing above, beside, behind or under household cooking
ranges, hobs and similar cooking appliances, their rated voltage being not more than 250 V.
NOTE 101 The cooking appliance may be supplied by electricity or other fuels, such as gas.
Appliances not intended for normal household use but that nevertheless may be a source of
danger to the public, such as appliances intended to be used by laymen in shops, in light
industry and on farms, are within the scope of this standard.
As far as is practicable, this standard deals with the common hazards presented by
appliances that are encountered by all persons in and around the home. However, in general,
it does not take into account
2 – persons (including children) whose
• physical, sensory or mental capabilities; or
• lack of experience and knowledge
prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
NOTE 102 Attention is drawn to the fact that
– for appliances incorporating electrostatic air filters, IEC 60335-2-65 also applies;
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be
necessary;
– in many countries additional requirements are specified by the national health authorities, the national
authorities responsible for the protection of labour, the national authorities responsible for buildings and similar
authorities.
NOTE 103 This standard does not apply to
– appliances intended for commercial purposes (IEC 60335-2-99);
– appliances intended to be used in locations where special conditions prevail, such as the presence of a
corrosive or explosive atmosphere (dust, vapour or gas).

2 Normative references
This clause of Part 1 is applicable.

60335-2-31 © IEC:2002+A1:2006 – 7 –
+A2:2008
3 Definitions
This clause of Part 1 is applicable except as follows.
3.101
range hood
motor-operated appliance intended to collect contaminated air from above a hob
NOTE The filtered air may be discharged back into the room or ducted away.
2 3.102
down-draft system
a ventilation system intended for installation adjacent to household cooking ranges, hobs and
similar cooking appliances that draws vapour down into an internal exhaust duct
NOTE The filtered air may be discharged back into the room or ducted away.
4 General requirement
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.7 Addition:
For down-draft systems, the tests specified in Clauses 11 and 13 are carried out at an
ambient temperature of 40 °C ± 2 °C.
5.10 Modification:
Appliances are not connected to a duct.
2 5.101 Down-draft systems intended to be installed above the cooking surface are tested as
specified for range hoods.
6 Classification
This clause of Part 1 is applicable.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Addition:
Appliances shall be marked on or near the lampholder with the maximum power input of
replaceable lamps as follows:
lamp max …. W
The word “lamp” may be replaced by symbol IEC 60417-5012 (2002-10).

– 8 – 60335-2-31 © IEC:2002+A1:2006
+A2:2008
7.12 Addition:
The instructions shall state the substance of the following:
– there shall be adequate ventilation of the room when the range hood is used at the same
time as appliances burning gas or other fuels (not applicable to appliances that only
discharge the air back into the room);
– the details concerning the method and frequency of cleaning;
– there is a fire risk if cleaning is not carried out in accordance with the instructions;
– do not flambé under the range hood;
– CAUTION: Accessible parts may become hot when used with cooking appliances.
7.12.1 Addition:
The installation instructions shall include the substance of the following:
– the air must not be discharged into a flue that is used for exhausting fumes from
appliances burning gas or other fuels (not applicable to appliances that only discharge the
air back into the room);
– the minimum distance between the supporting surface for the cooking vessels on the hob
and the lowest part of the range hood. (When the range hood is located above a gas
appliance, this distance shall be at least 65 cm. If the instructions for installation for the
gas hob specify a greater distance, this has to be taken into account. The distance of
65 cm can be reduced for
– non-combustible parts of range hoods, and
– parts operating at safety extra low voltage,
provided these parts do not give access to live parts if deformed);
– regulations concerning the discharge of air have to be fulfilled.
2 The installation instructions for down-draft systems shall also include the substance of the
following:
– the following warning (for down-draft systems not intended to be used with gas hobs):
CAUTION: This appliance is not intended to be used with gas hobs.
– details of the gas appliance (for down-draft systems intended to be used together with gas
hobs).
NOTE 101 This information can only be given if the down-draft system has been tested in conjunction with
the designated appliance.
7.15 Addition:
The marking for maximum power input of a replaceable lamp shall be visible during
replacement of the lamp.
8 Protection against access to live parts
This clause of Part 1 is applicable except as follows.
8.2 Addition:
After the removal of detachable parts during user maintenance, the basic insulation of
internal wiring may be touched provided it is electrically equivalent to the insulation of cords
complying with IEC 60227 or IEC 60245.

60335-2-31 © IEC:2002+A1:2006 – 9 –
+A2:2008
9 Starting of motor-operated appliances
This clause of Part 1 is not applicable.
10 Power input and current
This clause of Part 1 is applicable.
11 Heating
This clause of Part 1 is applicable except as follows.
11.2 Replacement:
Built-in appliances are installed in accordance with the instructions. Other appliances are
fixed to a vertical support.
The appliance is located above a hob so that the distance between its lowest point and the
hob surface is the minimum distance specified in the instructions. A vertical side wall
extending to the top of the range hood is placed at right angles to the vertical support,
100 mm from one side of the range hood. Dull black-painted plywood approximately 20 mm
thick is used for the vertical support, the side wall and for the installation of built-in range
appliances.
If the range hood is intended to be installed over a hob having four hob elements, the hob shall
have two 2 kW electric elements at the back and two 1,5 kW electric elements at the front.
If the range hood is intended to be installed over a hob having six hob elements, the hob shall
have three 2 kW electric elements at the back and three 1,5 kW electric elements at the front.
The layout of the hobs used in the tests is shown in Figure 101. The hobs are centrally
situated with respect to the range hood.
Vessels, without lids, containing water are placed on the hob elements. The diameter of the
vessels is approximately equal to that of the hob elements. The hob elements are operated to
maintain vigorous boiling.
The appliance is also tested without the hob elements in operation.
2 For appliances delivered for installation with the control and filter boxes separate from the
fan, the duct length on input and output shall be 4 times fan diameter. However, if the fan is
intended to be mounted on the external structure of a building, the fan is not ducted on the
output side.
11.7 Replacement:
Appliances are operated until steady conditions are established.
11.8 Addition:
The temperature rise limit for external enclosures and wood does not apply when the hob
elements are in operation. When the appliance is tested without the hob elements in
operation, only the temperature rises of the external enclosure and wood are measured, the
temperature rise limit for wood being 65 K.
NOTE 101 Temperature rises, especially those of lampholders, are also determined with the fan motor switched off.
For down-draft systems, the temperature rises shall not exceed the values given in Table 3
reduced by 15 K.
– 10 – 60335-2-31 © IEC:2002+A1:2006
+A2:2008
12 Void
13 Leakage current and electric strength at operating temperature
This clause of Part 1 is applicable.
14 Transient overvoltages
This clause of Part 1 is applicable.
15 Moisture resistance
This clause of Part 1 is applicable except as follows.
15.1.1 Addition:
The outer part of fans intended to be installed in the external structure of a building is
subjected to the test of Subclause 14.2.4 a) of IEC 60529, the part of the fan not mounted on
the outside surface being protected against spray from the oscillating tube. The test is carried
out with the appliance in the rest position and then in operation while supplied at rated
voltage, shutters or similar devices being in the open position.
15.2 Addition:
A vessel with 0,5 l water containing approximately 1 % NaCl is poured steadily over a period
of 15 s over critical parts of a down-draft system.
16 Leakage current and electric strength
This clause of Part 1 is applicable.
17 Overload protection of transformers and associated circuits
This clause of Part 1 is applicable.
18 Endurance
This clause of Part 1 is not applicable.
19 Abnormal operation
This clause of Part 1 is applicable except as follows.
19.1 Addition:
Appliances are also subjected to the test of 19.101.
19.13 Addition:
During the test of 19.101, the temperature of the motor windings shall not exceed the values
specified in Table 8. The appliance shall not deform to such an extent that parts fall from it.

60335-2-31 © IEC:2002+A1:2006 – 11 –
+A2:2008
19.101 Appliances are operated above a hob as specified in Clause 11, but without vessels
and with only the two outer hob elements at the back being energized.
20 Stability and mechanical hazards
This clause of Part 1 is applicable except as follows.
20.2 Addition:
Filters are considered to be detachable parts.
21 Mechanical strength
This clause of Part 1 is applicable.
22 Construction
This clause of Part 1 is applicable except as follows.
22.8 Replacement:
For appliances having compartments to which access is gained during user maintenance,
the electrical connections shall be arranged so that they are not subjected to pulling during
cleaning or other user maintenance.
Compliance is checked by inspection and by the following test.
Detachable parts are removed. It shall not be possible to grasp wiring likely to be touched in
such a way that the connections are subjected to undue stress.
In case of doubt, the wiring is subjected to a pull of 10 N, applied without jerks three times in
succession, in the most unfavourable direction likely to occur during user maintenance.
There shall be no appreciable displacement of the connections.
NOTE 101 Interconnection cords intended to be disconnected before cleaning or user maintenance are not
subjected to the test.
22.101 Appliances shall be constructed so that they can be fixed securely to a wall or other
support. Brackets and similar means shall be of metal that shall not be liable to creep or
deform.
Compliance is checked by inspection.
NOTE Keyhole slots, hooks and similar means, without any further means to prevent the appliance from being
inadvertently lifted off the support, are not considered to be adequate means for fixing the appliance securely.
22.102 Appliances shall be constructed so that parts liable to accumulate deposits of grease
2 can be cleaned without moving adjacent cooking appliances.
Compliance is checked by inspection.
NOTE Parts located behind a filter are not considered to be parts that have to be cleaned.
23 Internal wiring
This clause of Part 1 is applicable.

– 12 – 60335-2-31 © IEC:2002+A1:2006
+A2:2008
24 Components
This clause of Part 1 is applicable.
25 Supply connection and external flexible cords
This clause of Part 1 is applicable.
26 Terminals for external conductors
This clause of Part 1 is applicable.
27 Provision for earthing
This clause of Part 1 is applicable except as follows.
27.1 Addition:
Metal parts that become accessible during user maintenance are considered to be
accessible metal parts.
28 Screws and connections
This clause of Part 1 is applicable.
29 Clearances, creepage distances and solid insulation
This clause of Part 1 is applicable except as follows.
29.2 Addition:
The microenvironment is pollution degree 3 unless the insulation is enclosed or located so
that it is unlikely to be exposed to pollution during normal use of the appliance.
30 Resistance to heat and fire
This clause of Part 1 is applicable except as follows.
30.1 Addition:
The ball pressure test is carried out on the exposed parts of the underside of the appliance at
a temperature of at least 105 °C.
30.2.2 Not applicable.
30.101 Appliances shall not incorporate combustible material liable to appreciably propagate
a fire originating underneath the hood.
Compliance is checked as follows.

60335-2-31 © IEC:2002+A1:2006 – 13 –
+A2:2008
Filters of non-metallic material intended for the absorption of grease shall meet the
requirements specified in ISO 9772 for category HBF material, except that the thickness of
the specimen is that of the filter.
NOTE 1 It may be necessary to support the specimen during the test.
Lamp diffusers and external air-guides having a total mass not exceeding 0,35 kg are
subjected to the glow-wire test of IEC 60695-2-11 at a temperature of 550 °C. The glow-wire
test is not carried out on parts of material classified at least HB40 according to
IEC 60695-11-10, provided that the test sample was no thicker than the relevant part.
Other accessible parts of the enclosure are subjected to the needle-flame test of Annex E.
Internal air-ducts and parts within them, such as fans, are subjected to the needle-flame test
of Annex E, droplets of material being ignored.
NOTE 2 Grease filters are not subjected to this test.
31 Resistance to rusting
This clause of Part 1 is applicable.
32 Radiation, toxicity and similar hazards
This clause of Part 1 is applicable.

– 14 – 60335-2-31 © IEC:2002+A1:2006
+A2:2008
C
A
B
a) Four element hob
C
A
250 250
B
b) Six element hob
IEC  431/06
Dimensions in millimetres
Key
A Electric hob element, 2 kW
B Electric hob element, 1,5 kW
C Vertical support for the range hood
Figure 101 – Hob layout for the heating test

60335-2-31 © IEC:2002+A1:2006 – 15 –
+A2:2008
Annexes
The annexes of Part 1 are applicable.

Bibliography
The bibliography of Part 1 is applicable except as follows.
Addition:
60335-2-65, Household and similar electrical appliances – Safety – Part 2-65: Particular
requirements for air-cleaning appliances
60335-2-99, Household and similar electrical appliances – Safety – Part 2-99: Particular
requirements for commercial electric hoods
ISO 13732-1, Ergonomics of the thermal environment – Methods for the assessment of human
responses to contact with surfaces – Part 1: Hot surfaces

___________
– 16 – 60335-2-31 © CEI:2002+A1:2006
+A2:2008
SOMMAIRE
AVANT-PROPOS.17
INTRODUCTION.20

1 Domaine d’application .21
2 Références normatives.21
3 Définitions .22
4 Exigences générales .22
5 Conditions générales d’essais .22
6 Classification.22
7 Marquage et instructions .22
8 Protection contre l’accès aux parties actives .23
9 Démarrage des appareils à moteur.24
10 Puissance et courant .24
11 Echauffements .24
12 Vacant.25
13 Courant de fuite et rigidité diélectrique à la température de régime .25
14 Surtensions transitoires.25
15 Résistance à l’humidité.25
16 Courant de fuite et rigidité diélectrique .25
17 Protection contre la surcharge des transformateurs et des circuits associés.25
18 Endurance.26
19 Fonctionnement anormal .26
20 Stabilité et dangers mécaniques .26
21 Résistance mécanique .26
22 Construction .26
23 Conducteurs internes .27
24 Composants .27
25 Raccordement au réseau et câbles souples extérieurs .27
26 Bornes pour conducteurs externes .27
27 Dispositions en vue de la mise à la terre .27
28 Vis et connexions .27
29 Distances dans l'air, lignes de fuite et isolation solide .28
30 Résistance à la chaleur et au feu.28
31 Protection contre la rouille.28
32 Rayonnement, toxicité et dangers analogues.28

Annexes .30

Bibliographie.30

Figure 101 – Disposition des tables de cuisson pour les essais d’échauffements.

60335-2-31 © CEI:2002+A1:2006 – 17 –
+A2:2008
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
SÉCURITÉ –
Partie 2-31: Règles particulières pour les hottes de cuisine et autres
extracteurs de fumées de cuisson

AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a
pour objet de favoriser la coopération internationale pour toutes les questions de normalisation dans les
domaines de l'électricité et de l'électronique. A cet effet, la CEI – entre autres activités – publie des Normes
internationales, des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au
public (PAS) et des Guides (ci-après dénommés "Publication(s) de la CEI"). Leur élaboration est confiée à des
comités d'études, aux travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les
organisations internationales, gouvernementales et non gouvernementales, en liaison avec la CEI, participent
également aux travaux. La CEI collabore étroitement avec l'Organisation Internationale de Normalisation (ISO),
selon des conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de la CEI concernant les questions techniques représentent, dans la mesure
du possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de la CEI
intéressés sont représentés dans chaque comité d’études.
3) Les Publications de la CEI se présentent sous la forme de recommandations internationales et sont agréées
comme telles par les Comités nationaux de la CEI. Tous les efforts raisonnables sont entrepris afin que la CEI
s'assure de l'exactitude du contenu technique de ses publications; la CEI ne peut pas être tenue responsable
de l'éventuelle mauvaise utilisation ou interprétation qui en est faite par un quelconque utilisateur final.
4) Dans le but d'encourager l'uniformité internationale, les Comités nationaux de la CEI s'engagent, dans toute la
mesure possible, à appliquer de façon transparente les Publications de la CEI dans leurs publications
nationales et régionales. Toutes divergences entre toutes Publications de la CEI et toutes publications
nationales ou régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.
5) La CEI n’a prévu aucune procédure de marquage valant indication d’approbation et n'engage pas sa
responsabilité pour les équipements déclarés conformes à une de ses Publications.
6) Tous les utilisateurs doivent s'assurer qu'ils sont en possession de la dernière édition de cette publication.
7) Aucune responsabilité ne doit être imputée à la CEI, à ses administrateurs, employés, auxiliaires ou
mandataires, y compris ses experts particuliers et les membres de ses comités d'études et des Comités
nationaux de la CEI, pour tout préjudice causé en cas de dommages corporels et matériels, ou de tout autre
dommage de quelque nature que ce soit, directe ou indirecte, ou pour
...

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