IEC 60335-2-74:2002

Household and similar electrical appliances - Safety - Part 2-74: Particular requirements for portable immersion heaters

Deals with the safety of portable electric immersion heaters, their rated voltage voltage being not more than 250 V, for household and similar purposes. Also includes appliances intended for use by laymen in shops, in light industry and on farms.

Appareils électrodomestiques et analogues - Sécurité - Partie 2-74: Règles particulières pour les thermoplongeurs mobiles

Traite de la sécurité des thermoplongeurs mobiles électriques pour usages domestiques et analogues dont la tension assignée n'est pas supérieure à 250 V. Inclus aussi les appareils destinés à être utilisés par des usagers non avertis dans des magasins, chez des artisans et dans des fermes

General Information

• Status: Published
• Publication Date: 24-Nov-2009
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 13.120 - Domestic safety
• ICS: 97.040.50 - Small kitchen appliances
• Technical Committee: TC 61 - Safety of household and similar electrical appliances
• Current Stage: DELPUB - Deleted Publication
• Start Date: 20-Nov-2020
• Completion Date: 03-Sep-2021

Relations

• Amended By: IEC 60335-2-74:2002/AMD2:2009 - Amendment 2 - Household and similar electrical appliances - Safety - Part 2-74: Particular requirements for portable immersion heaters
• Effective Date: 05-Sep-2023
• Amended By: IEC 60335-2-74:2002/AMD1:2006 - Amendment 1 - Household and similar electrical appliances - Safety - Part 2-74: Particular requirements for portable immersion heaters
• Effective Date: 05-Sep-2023
• Revised: IEC 60335-2-74:2021 - Household and similar electrical appliances - Safety - Part 2-74: Particular requirements for portable immersion heaters
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
60335-2-74
Second edition
2002-10
Household and similar electrical appliances –
Safety –
Part 2-74:
Particular requirements for portable
immersion heaters
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-74:
Règles particulières pour les thermoplongeurs mobiles

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: [e-mail]
Tel: [phone]
Fax: [phone]
INTERNATIONAL IEC
STANDARD
60335-2-74
Second edition
2002-10
Household and similar electrical appliances –
Safety –
Part 2-74:
Particular requirements for portable
immersion heaters
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-74:
Règles particulières pour les thermoplongeurs mobiles

 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: [phone] Telefax: [phone] E-mail: [e-mail]  Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
L
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 60335-2-74  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 . 7
9 Starting of motor-operated appliances . 7
10 Power input and current. 8
11 Heating. 8
12 Void . 8
13 Leakage current and electric strength at operating temperature . 8
14 Transient overvoltages. 8
15 Moisture resistance. 8
16 Leakage current and electric strength . 8
17 Overload protection of transformers and associated circuits. 8
18 Endurance . 8
19 Abnormal operation. 8
20 Stability and mechanical hazards. 9
21 Mechanical strength. 9
22 Construction . 9
23 Internal wiring. 9
24 Components .9
25 Supply connection and external flexible cords. 9
26 Terminals for external conductors .10

27 Provision for earthing.10
28 Screws and connections .10
29 Clearances, creepage distances and solid insulation .10
30 Resistance to heat and fire .10
31 Resistance to rusting .10
32 Radiation, toxicity and similar hazards .10
Annexes.11
Bibliography.11

60035-2-74  IEC:2002(E) – 3 –

INTERNATIONAL ELECTROTECHNICAL COMMISSION

–––––––––––––
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –

SAFETY –
Part 2-74: Particular requirements for portable immersion heaters

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 second edition cancels and replaces the first edition published in 1994. It constitutes a
technical revision.
The text of this part of IEC 60335 is based on the following documents:
FDIS Report on voting
61/2177/FDIS 61/2258/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 portable electric
immersion heaters.
– 4 – 60335-2-74  IEC:2002(E)

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 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.
– 19.2: The test is carried out with the appliance suspended by its supply cord (Poland).
– Clause 21: The additional test is only carried out on appliances with a non-metallic enclosure (USA).
– 24.101: This requirement is not applicable (USA).
A bilingual version of this publication may be issued at a later date.

60035-2-74  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.
...

NORME CEI
INTERNATIONALE IEC
60335-2-74
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2002-10
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-74:
Règles particulières pour les
thermoplongeurs mobiles
Household and similar electrical appliances –
Safety –
Part 2-74:
Particular requirements for portable
immersion heaters
Numéro de référence
Reference number
CEI/IEC 60335-2-74:2002
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
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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
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NORME CEI
INTERNATIONALE IEC
60335-2-74
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2002-10
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-74:
Règles particulières pour les
thermoplongeurs mobiles
Household and similar electrical appliances –
Safety –
Part 2-74:
Particular requirements for portable
immersion heaters
 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: [phone] Telefax: [phone] E-mail: [e-mail]  Web: www.iec.ch
CODE PRIX
L
Commission Electrotechnique Internationale PRICE CODE
International Electrotechnical Commission
Международная Электротехническая Комиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

– 2 – 60335-2-74  CEI:2003
SOMMAIRE
AVANT-PROPOS . 4
INTRODUCTION .8
1 Domaine d’application.10
2 Références normatives .10
3 Définitions .10
4 Prescriptions générales .12
5 Conditions générales d’essais .12
6 Classification .12
7 Marquage et indications.12
8 Protection contre l’accès aux parties actives.12
9 Démarrage des appareils à moteur .14
10 Puissance et courant .14
11 Echauffements.14
12 Vacant .14
13 Courant de fuite et rigidité diélectrique à la température de régime.14
14 Surtensions transitoires .14
15 Résistance à l’humidité.14
16 Courant de fuite et rigidité diélectrique.14
17 Protection contre la surcharge des transformateurs et des circuits associés .14
18 Endurance .14
19 Fonctionnement anormal.16
20 Stabilité et dangers mécaniques .16
21 Résistance mécanique.16
22 Construction .16
23 Conducteurs internes.16
24 Composants.16
25 Raccordement au réseau et câbles souples extérieurs.18
26 Bornes pour conducteurs externes.18
27 Dispositions en vue de la mise à la terre.18
28 Vis et connexions .18
29 Distances dans l’air, lignes de fuite et isolation solide.18
30 Résistance à la chaleur et au feu.18
31 Protection contre la rouille .18
32 Rayonnement, toxicité et dangers analogues .18
Annexes.20
Bibliographie .20

60335-2-74  IEC:2003 – 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 .13
9 Starting of motor-operated appliances .15
10 Power input and current.15
11 Heating.15
12 Void .15
13 Leakage current and electric strength at operating temperature .15
14 Transient overvoltages.15
15 Moisture resistance.15
16 Leakage current and electric strength .15
17 Overload protection of transformers and associated circuits.15
18 Endurance .15
19 Abnormal operation.17
20 Stability and mechanical hazards.17
21 Mechanical strength.17
22 Construction .17
23 Internal wiring.17
24 Components .17
25 Supply connection and external flexible cords.19
26 Terminals for external conductors .19
27 Provision for earthing.19
28 Screws and connections .19
29 Clearances, creepage distances and solid insulation .19
30 Resistance to heat and fire .19
31 Resistance to rusting .19
32 Radiation, toxicity and similar hazards .19
Annexes.21
Bibliography.21
...

IEC 60335-2-74
Edition 2.1 2006-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-74: Particular requirements for portable immersion heaters

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-74: Règles particulières pour les thermoplongeurs mobiles

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by

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IEC 60335-2-74
Edition 2.1 2006-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-74: Particular requirements for portable immersion heaters

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-74: Règles particulières pour les thermoplongeurs mobiles

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CD
CODE PRIX
ICS 13.120; 97.040.50 ISBN 2-8318-8662-7

– 2 – 60335-2-74  CEI:2002+A1:2006

SOMMAIRE
AVANT-PROPOS.4

INTRODUCTION.8

1 Domaine d’application.10

2 Références normatives.10

3 Définitions.10

4 Prescriptions générales.12

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

27 Dispositions en vue de la mise à la terre .18
28 Vis et connexions.18
29 Distances dans l’air, lignes de fuite et isolation solide .18
30 Résistance à la chaleur et au feu.18
31 Protection contre la rouille.18
32 Rayonnement, toxicité et dangers analogues.18

Annexes .20

Bibliographie.20

60335-2-74  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.13
9 Starting of motor-operated appliances .15
10 Power input and current .15
11 Heating.15
12 Void .15
13 Leakage current and electric strength at operating temperature.15
14 Transient overvoltages .15
15 Moisture resistance.15
16 Leakage current and electric strength.15
17 Overload protection of transformers and associated circuits .15
18 Endurance.15
19 Abnormal operation.17
20 Stability and mechanical hazards .17
21 Mechanical strength .17
22 Construction.17
23 Internal wiring.17
24 Components.17
25 Supply connection and external flexible cords .19
26 Terminals for external conductors.19

27 Provision for earthing .19
28 Screws and connections .19
29 Clearances, creepage distances and solid insulation .19
30 Resistance to heat and fire.19
31 Resistance to rusting.19
32 Radiation, toxicity and similar hazards.19

Annexes .21

Bibliography.21

– 4 – 60335-2-74 © CEI:2002+A1:
...

IEC 60335-2-74 ®
Edition 2.2 2009-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-74: Particular requirements for portable immersion heaters

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-74: Règles particulières pour les thermoplongeurs mobiles

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IEC 60335-2-74 ®
Edition 2.2 2009-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-74: Particular requirements for portable immersion heaters

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-74: Règles particulières pour les thermoplongeurs mobiles

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CE
CODE PRIX
ICS 13.120; 97.040.50 ISBN 978-2-88910-165-8
– 2 – 60335-2-74 © IEC:2002+A1:2006

+A2:2009
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.7
9 Starting of motor-operated appliances .8
10 Power input and current .8
11 Heating.8
12 Void .8
13 Leakage current and electric strength at operating temperature.8
14 Transient overvoltages .8
15 Moisture resistance.8
16 Leakage current and electric strength.8
17 Overload protection of transformers and associated circuits .8
18 Endurance.8
19 Abnormal operation.9
20 Stability and mechanical hazards .9
21 Mechanical strength.9
22 Construction.9
23 Internal wiring.9
24 Components.9
25 Supply connection and external flexible cords .10
26 Terminals for external conductors.10

27 Provision for earthing .10
28 Screws and connections .10
29 Clearances, creepage distances and solid insulation .10
30 Resistance to heat and fire.10
31 Resistance to rusting.10
32 Radiation, toxicity and similar hazards.10

Annexes .

Bibliography.

60335-2-74 © IEC:2002+A1:2006 – 3 –

+A2:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION

–––––––––––––
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –

SAFETY –
Part 2-74: Particular requirements for portable immersion heaters

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
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consensus of opinion on the relevant subjects since each technical committee has representation from all
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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 60335-2-74 consists of the second edition (2002)
[documents 61/2177/FDIS and 61/2258/RVD], its amendment 1 (2006) [documents
61/2962/CDV and 61/3028/RVC] and its amendment 2 (2009) [documents 61/3867/FDIS and
61/3913/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 2.2.
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 – 60335-2-74 © IEC:2002+A1:2006

+A2:2009
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.

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