Household and similar electrical appliances - Safety - Part 1: General requirements

IEC 60335-1:2020 deals with the safety of electrical appliances for household and similar purposes, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances including direct current (DC) supplied appliances and battery-operated appliances.
Appliances not intended for normal household use but which 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.
This standard deals with the reasonably foreseeable hazards presented by appliances that are encountered by all persons. However, in general, it does not take into account:
– 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.
Additional requirements may be necessary for appliances intended to be used in vehicles or on board ships or aircraft. In many countries, additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour, the national water supply authorities and similar authorities.
This standard does not apply to:
– appliances intended exclusively for industrial purposes;
– 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);
– audio, video and similar electronic apparatus (IEC 60065);
– medical electrical equipment (IEC 60601 series);
– hand-held motor-operated electric tools (IEC 60745 series);
– information technology equipment (IEC 60950-1);
– transportable motor-operated electric tools (IEC 61029 series);
– audio/video, information and communication technology equipment (IEC 62368-1);
– electric motor-operated hand-held tools, transportable tools and lawn and garden machinery (IEC 62841 series).
This sixth edition cancels and replaces the fifth edition published in 2010, Amendment 1: 2013 and Amendment 2:2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition (minor changes are not listed):
a) updated the text of this standard to align with the most recent editions of the dated normative references;
b) deleted some notes and converted many other notes, in whole or in part, to normative text;
c) changed some Annex designations from normative to informative;
d) introduced information on Guidance documents concerning the application of the safety requirements covered by IEC 60335 series and on how to retrieve them;
e) clarified requirements for PELV circuits;
f) clarification of requirements on measurement of power input and rated current when they vary throughout the operating cycle;
g) replaced normative Annex S with the informative Annex S "Guidance for the application of this standard on measurement of power input and current based on the requirements of 10.1 and 10.2 concerning the representative period";
h) introduced and clarified mechanical strength requirements for appliances with integral pins for insertion into socket-outlets;
i) revised requirements for battery-operated appliances;
j) introduced requirements for metal-ion batteries including a new Clause 12 Charging of metal-ion batteries;
k) introduced the application of test probe 18;
l) introduced requirements for appliances incorporating appliance outlets and socket-outlets accessible to the user;
m) revised and clarified requirements for appliances incorporating a functional earth;
n) introduced moisture resistance test requirements for appliances that incorporate an automatic cord reel and that have a second numeral IP rating;
o) clarified the appliance test criteria for the moisture resistance for appliances and parts of appliances with inte

Appareils électrodomestiques et analogues - Sécurité - Partie 1 : Exigences générales

L'IEC 60335-1:2020 traite de la sécurité des appareils électriques pour usages domestiques et analogues dont la tension assignée n'est pas supérieure à 250 V pour les appareils monophasés et à 480 V pour les autres appareils, y compris les appareils alimentés en courant continu (CC) et les appareils alimentés par batteries.
Les appareils non destinés à un usage domestique normal, mais qui néanmoins peuvent constituer une source de danger pour le public, tels que les appareils destinés à être utilisés par des utilisateurs non avertis dans des magasins, chez des artisans et dans des fermes, sont compris dans le domaine d'application de la présente norme.
La présente norme traite des dangers raisonnablement prévisibles que présentent les appareils pour toutes les personnes.
Cependant, la présente norme ne tient pas compte en général:
– des personnes (y compris des enfants) dont les capacités physiques, sensorielles ou mentales; ou le manque d'expérience et de connaissance les empêchent d'utiliser l'appareil en toute sécurité sans surveillance ou instruction;
– de l'utilisation de l'appareil comme jouet par des enfants.
Des exigences supplémentaires peuvent être nécessaires pour les appareils destinés à être utilisés dans des véhicules ou à bord de navires ou d'avions. Dans de nombreux pays, des exigences supplémentaires sont spécifiées par les organismes nationaux de la santé, par les organismes nationaux responsables de la protection des travailleurs, par les organismes nationaux responsables de l'alimentation en eau et par des organismes similaires.
La présente norme ne s'applique pas:
– aux appareils prévus exclusivement pour des usages industriels;
– aux appareils destinés à être utilisés dans des locaux présentant des conditions particulières, telles que la présence d'une atmosphère corrosive ou explosive (poussière, vapeur ou gaz);
– aux appareils audio, vidéo et appareils électroniques analogues (IEC 60065);
– aux appareils électromédicaux (série IEC 60601);
– aux outils électroportatifs à moteur (série IEC 60745);
– aux matériels de traitement de l'information (IEC 60950-1);
– aux machines-outils électriques semi-fixes (série IEC 61029);
– aux équipements des technologies de l'audio/vidéo, de l'information et de la communication (IEC 62368-1);
– aux outils électroportatifs à moteur, aux outils portables et aux machines pour jardins et pelouses (série IEC 62841).
Cette sixième édition annule et remplace la cinquième édition parue en 2010, l'Amendement 1:2013 et l'Amendement 2:2016. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente (les modifications mineures ne sont pas répertoriées):
a) mise à jour du texte de la présente norme pour l'aligner avec les éditions les plus récentes des références normatives datées;
b) suppression de quelques notes et conversion de plusieurs autres notes, en intégralité ou en partie, en texte normatif;
c) modification de certaines désignations d'annexes de normatives à informatives;
d) introduction d'informations sur les documents de recommandations concernant l'application des exigences de sécurité couvertes par la série IEC 60335 et sur la manière de les récupérer;
e) clarification des exigences relatives aux circuits à TBTP;
f) clarification des exigences relatives au mesurage de la puissance et du courant nominal lorsqu'ils varient au cours du cycle de fonctionnement;
g) remplacement de l'Annexe S normative par l'Annexe S informative "Recommandations relatives à l'application de la présente norme pour le mesurage de la puissance et du courant sur la base des exigences du 10.1 et du 10.2 concernant la période représentative";
h) introduction et clarification d'exigences concernant la résistance mécanique des appareils équipés de broches intégrées destinées à être insérées dans des socles de prises de courant;
i) révision des exigences relatives aux appareils alime

General Information

Status
Published
Publication Date
01-Sep-2020
Current Stage
PPUB - Publication issued
Start Date
07-Aug-2020
Completion Date
02-Sep-2020
Ref Project

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IEC 60335-1 ®
Edition 6.0 2020-09
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 1: General requirements
All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
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IEC 60335-1 ®
Edition 6.0 2020-09
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –

Part 1: General requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120; 97.030 ISBN 978-2-8322-8600-5

– 2 – IEC 60335-1:2020 © IEC 2020
CONTENTS
FOREWORD. 6
INTRODUCTION . 9

1 Scope . 11
2 Normative references . 11
3 Terms and definitions . 16
4 General requirement . 28
5 General conditions for the tests . 28
6 Classification . 32
7 Marking and instructions . 32
8 Protection against access to live parts . 41
9 Starting of motor-operated appliances . 43
10 Power input and current . 43
11 Heating . 45
12 Charging of metal-ion batteries . 51
13 Leakage current and electric strength at operating temperature . 52
14 Transient overvoltages . 55
15 Moisture resistance . 55
16 Leakage current and electric strength. 58
17 Overload protection of transformers and associated circuits. 60
18 Endurance . 60
19 Abnormal operation . 60
20 Stability and mechanical hazards . 71
21 Mechanical strength . 72
22 Construction . 74
23 Internal wiring . 86
24 Components . 88
25 Supply connection and external flexible cords . 93
26 Terminals for external conductors . 101
27 Provision for earthing . 103
28 Screws and connections . 105
29 Clearances, creepage distances and solid insulation . 107
30 Resistance to heat and fire . 116
31 Resistance to rusting . 121
32 Radiation, toxicity and similar hazards . 121

Annex A (informative) Routine tests . 135
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 137
Annex C (normative) Ageing test on motors . 158
Annex D (normative) Thermal motor protectors . 159
Annex E (normative) Needle-flame test . 160

Annex F (normative) Capacitors . 161
Annex G (normative) Safety isolating transformers . 163
Annex H (normative) Switches . 164
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 166
Annex J (normative) Coated printed circuit boards . 168
Annex K (informative) Overvoltage categories . 169
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 170
Annex M (informative) Pollution degree . 173
Annex N (normative) Proof tracking test . 174
Annex O (informative) Selection and sequence of the tests of Clause 30 . 175
Annex P (informative) Guidance for the application of this standard to appliances used
in tropical climates . 180
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 182
Annex R (normative) Software evaluation . 185
Annex S (informative) Guidance for the application of this standard on measurement of
power input and current based on the requirements of 10.1 and 10.2 concerning the
representative period . 199
Annex T (normative) UV-C radiation effect on non-metallic materials . 200
Annex U (normative) Appliances intended for remote communication through public
networks . 203
Bibliography . 207
Index of defined terms . 210

Figure 1 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of class II appliances and for parts of class ll construction . 122
Figure 2 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of other than class II appliances or parts of class ll
construction . 123
Figure 3 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral class II appliances and for parts of class ll construction . 124
Figure 4 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral appliances other than those of class II or parts of class ll
construction . 125
Figure 5 – Small part . 126
Figure 6 – Example of an electronic circuit with low-power points . 126
Figure 7 – Test finger nail . 127
Figure 8 – Flexing test apparatus . 128
Figure 9 – Constructions of cord anchorages . 129
Figure 10 – An example of parts of an earthing terminal . 130
Figure 11 – Examples of clearances . 131
Figure 12 – Example of the placement of the cylinder . 132
Figure 13 – Small parts cylinder . 133
Figure 14 – Example of a specified operating region of a lithium-ion cell during charging . 134
Figure B.1 – Examples of battery-operated appliance constructions and application of
normative Annex B . 155

– 4 – IEC 60335-1:2020 © IEC 2020
Figure B.2 – Examples of correct polarity connection marking representing three
batteries . 157
Figure I.1 – Simulation of faults . 167
Figure L.1 – Sequence for the determination of clearances . 170
Figure L.2 – Sequence for the determination of creepage distances . 171
Figure L.3 – Measurement of clearances . 172
Figure O.1 – Tests for resistance to heat . 175
Figure O.2 – Selection and sequence of tests for resistance to fire in hand-held
appliances . 176
Figure O.3 – Selection and sequence of tests for resistance to fire in attended
appliances . 176
Figure O.4 – Selection and sequence of tests for resistance to fire in un
...


IEC 60335-1 ®
Edition 6.0 2020-09
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 1: General requirements
All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

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IEC 60335-1 ®
Edition 6.0 2020-09
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –

Part 1: General requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120; 97.030 ISBN 978-2-8322-8822-1

© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60335-1
Edition 6.0  2020-09
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –

Part 1: General requirements
INTERPRETATION SHEET 1
This interpretation sheet has been prepared by IEC technical committee 61: Safety of
household and similar electrical appliances.
The text of this Interpretation Sheet is based on the following documents:
Draft Report on voting
61/5999/DISH 61/6009/RVDISH
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
___________
INTRODUCTION
Edition 6 of IEC 60335-1:2020 defines and introduces requirements for a detachable
power supply part of an appliance. In the document, 24.2 prohibits the use of a power
supply in a flexible cord.
QUESTION:
Does Subclause 24.2 prohibit the use of a detachable power supply part?
ANSWER
No, a "detachable power supply part" is a defined term and is not captured by the term
"power supply" as used in Subclause 24.2.
NOTE A detachable power supply part is captured by the defined term when the output of the power supply
part is detachable from the class III construction part of the appliance at:
– the power supply part, or
– the class III construction part of the appliance.
However, the supply cord (if any) does not have to be detachable from the detachable power supply part.
ICS 13.120; 97.030
– 2 – IEC 60335-1:2020 CMV © IEC 2020
CONTENTS
FOREWORD. 6
INTRODUCTION . 2
1 Scope . 11
2 Normative references . 11
3 Terms and definitions . 17
4 General requirement . 28
5 General conditions for the tests . 28
6 Classification . 33
7 Marking and instructions . 33
8 Protection against access to live parts . 42
9 Starting of motor-operated appliances . 44
10 Power input and current . 44
11 Heating . 46
12 Void Charging of metal-ion batteries . 52
13 Leakage current and electric strength at operating temperature . 53
14 Transient overvoltages . 56
15 Moisture resistance . 57
16 Leakage current and electric strength. 60
17 Overload protection of transformers and associated circuits. 62
18 Endurance . 62
19 Abnormal operation . 62
20 Stability and mechanical hazards . 72
21 Mechanical strength . 73
22 Construction . 75
23 Internal wiring . 88
24 Components . 91
25 Supply connection and external flexible cords . 95
26 Terminals for external conductors . 104
27 Provision for earthing . 107
28 Screws and connections . 109
29 Clearances, creepage distances and solid insulation . 111
30 Resistance to heat and fire . 121
31 Resistance to rusting . 126
32 Radiation, toxicity and similar hazards . 126
Annex A (informative) Routine tests . 140
Annex B (normative) Appliances powered by rechargeable batteries that are recharged
in the appliance Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 142
Annex C (normative) Ageing test on motors . 168

Annex D (normative) Thermal motor protectors . 169
Annex E (normative) Needle-flame test . 170
Annex F (normative) Capacitors . 171
Annex G (normative) Safety isolating transformers . 173
Annex H (normative) Switches . 174
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 176
Annex J (normative) Coated printed circuit boards . 178
Annex K (normative informative) Overvoltage categories . 179
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 180
Annex M (normative informative) Pollution degree . 183
Annex N (normative) Proof tracking test . 184
Annex O (informative) Selection and sequence of the tests of Clause 30 . 185
Annex P (informative) Guidance for the application of this standard to appliances used
in tropical climates . 190
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 192
Annex R (normative) Software evaluation . 196
Annex S (normative informative) Battery-operated appliances powered by batteries that
are non-rechargeable or not recharged in the appliance Guidance for the application of
this standard on measurement of power input and current based on the requirements of
10.1 and 10.2 concerning the representative period . 210
Annex T (normative) UV-C radiation effect on non-metallic materials . 214
Annex U (normative) Appliances intended for remote communication through public
networks . 217
Bibliography . 221
Index of defined terms . 224
List of comments . 225

Figure 1 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of class II appliances and for parts of class ll construction . 127
Figure 2 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of other than class II appliances or parts of class ll
construction . 128
Figure 3 – Circuit diagram for leakage current measurement at operating temperature

for three-phase with neutral class II appliances and for parts of class ll construction . 129
Figure 4 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral appliances other than those of class II or parts of class ll
construction . 130
Figure 5 – Small part . 131
Figure 6 – Example of an electronic circuit with low-power points . 131
Figure 7 – Test finger nail . 132
Figure 8 – Flexing test apparatus . 133
Figure 9 – Constructions of cord anchorages . 134
Figure 10 – An example of parts of an earthing terminal . 135
Figure 11 – Examples of clearances . 136
Figure 12 – Example of the placement of the cylinder .
...


IEC 60335-1 ®
Edition 6.0 2020-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 1: General requirements
Appareils électrodomestiques et analogues – Sécurité –
Partie 1: Exigences générales
All rights reserved. Unless otherwise specified, 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
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International Standards for all electrical, electronic and related technologies.

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IEC 60335-1 ®
Edition 6.0 2020-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –

Part 1: General requirements
Appareils électrodomestiques et analogues – Sécurité –

Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.120; 97.030 ISBN 978-2-8322-3935-3

– 2 – IEC 60335-1:2020 © IEC 2020
CONTENTS
FOREWORD . 6
INTRODUCTION . 9
1 Scope . 11
2 Normative references . 11
3 Terms and definitions . 16
4 General requirement . 28
5 General conditions for the tests . 28
6 Classification . 32
7 Marking and instructions . 32
8 Protection against access to live parts . 41
9 Starting of motor-operated appliances . 43
10 Power input and current . 43
11 Heating . 45
12 Charging of metal-ion batteries . 51
13 Leakage current and electric strength at operating temperature . 52
14 Transient overvoltages . 55
15 Moisture resistance . 56
16 Leakage current and electric strength . 58
17 Overload protection of transformers and associated circuits . 60
18 Endurance . 61
19 Abnormal operation . 61
20 Stability and mechanical hazards . 71
21 Mechanical strength . 72
22 Construction . 74
23 Internal wiring . 86
24 Components . 88
25 Supply connection and external flexible cords . 93
26 Terminals for external conductors . 101
27 Provision for earthing . 103
28 Screws and connections . 105
29 Clearances, creepage distances and solid insulation . 107
30 Resistance to heat and fire . 116
31 Resistance to rusting . 121
32 Radiation, toxicity and similar hazards . 121
Annex A (informative) Routine tests . 135
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 137
Annex C (normative) Ageing test on motors . 158
Annex D (normative) Thermal motor protectors . 159
Annex E (normative) Needle-flame test . 160
Annex F (normative) Capacitors . 161
Annex G (normative) Safety isolating transformers . 163

Annex H (normative) Switches . 164
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 166
Annex J (normative) Coated printed circuit boards . 168
Annex K (informative) Overvoltage categories . 169
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 170
Annex M (informative) Pollution degree. 173
Annex N (normative) Proof tracking test . 174
Annex O (informative) Selection and sequence of the tests of Clause 30 . 175
Annex P (informative) Guidance for the application of this standard to appliances used
in tropical climates . 180
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 182
Annex R (normative) Software evaluation . 185
Annex S (informative) Guidance for the application of this standard on measurement of
power input and current based on the requirements of 10.1 and 10.2 concerning the
representative period . 199
Annex T (normative) UV-C radiation effect on non-metallic materials . 200
Annex U (normative) Appliances intended for remote communication through public
networks . 203
Bibliography . 207
Index of defined terms . 209

Figure 1 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of class II appliances and for parts of class ll construction . 122
Figure 2 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of other than class II appliances or parts of class ll
construction . 123
Figure 3 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral class II appliances and for parts of class ll construction . 124
Figure 4 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral appliances other than those of class II or parts of class ll
construction . 125
Figure 5 – Small part .
...

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