IEC 60335-2-81:2024
(Main)Household and similar electrical appliances - Safety - Part 2-81: Particular requirements for foot warmers and heating mats
Household and similar electrical appliances - Safety - Part 2-81: Particular requirements for foot warmers and heating mats
IEC 60335-2-81:2024 deals with the safety of electric foot warmers and heating mats for household and similar purposes, their rated voltage being not more than 250 V including direct current (DC) supplied appliances and battery-operated appliances.
Appliances not intended for normal household use but which nevertheless can be a source of danger to the public, such as appliances intended to be used by laypersons 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
– 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 can 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 specifically intended for use under medical supervision;
– electric blankets and pads (IEC 60335-2-17);
– electrically heated carpets (IEC 60335-2-106);
– electrical heating appliances for breeding and rearing animals (IEC 60335-2-71).
This fourth edition cancels and replaces the third edition published in 2015, Amendment 1:2017 and Amendment 2:2020. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60335-1:2020;
b) conversion of some notes to normative text (Clause 1, 13.2, 16.2, 21.103, 21.104, 21.105, 21.106);
c) addition of test probe 19 for accessibility (8.1.1, 8.1.3, 20.2, B.22.3, B.22.4);
d) addition of external surface temperatures (Clause 11);
e) addition of the test of 21.107 for control units intended to be placed on a surface;
f) alignment of 30.102 with IEC 60335-2-17.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments unless that edition precludes it; in that case, the latest edition that does not preclude it is used. It was established on the basis of the sixth edition (2020) of that standard.
Appareils électrodomestiques et analogues - Sécurité - Partie 2-81: Exigences particulières pour les chancelières et les carpettes chauffantes électriques
L'IEC 60335-2-81:2024 traite de la sécurité des chancelières et des carpettes chauffantes électriques destinées à un usage domestique et analogue, dont la tension assignée est inférieure ou égale à 250 V, y compris les appareils alimentés en courant continu et les appareils alimentés par batteries.
Les appareils non destinés à un usage domestique normal, mais qui peuvent néanmoins constituer une source de danger pour le public, tels que les appareils destinés à être utilisés par des usagers non avertis dans des magasins, chez des artisans et dans des fermes, sont compris dans le domaine d'application de la présente norme.
Dans la mesure du possible, la présente norme traite des dangers ordinaires présentés par les appareils, encourus par tous les individus à l'intérieur et autour de l'habitation. Cependant, elle ne tient en général pas compte
– 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;
– des enfants qui jouent avec l'appareil.
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 spécifiquement destinés à être utilisés sous surveillance médicale;
– aux couvertures et coussins électriques (IEC 60335-2-17);
– aux tapis chauffants électriques (IEC 60335-2-106);
– aux appareils de chauffage électrique destinés à la reproduction et à l'élevage des animaux (IEC 60335-2-71).
Cette quatrième édition annule et remplace la troisième édition parue en 2015, l'Amendement 1:2017 et l'Amendement 2:2020. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) le texte a été aligné sur l'IEC 60335-1:2020;
b) certaines notes ont été converties en texte normatif (Article 1, 13.2, 16.2, 21.103, 21.104, 21.105, 21.106);
c) le calibre d'essai 19 a été ajouté pour l'accessibilité (8.1.1, 8.1.3, 20.2, B.22.3, B.22.4);
d) les températures des surfaces extérieures ont été ajoutées (Article 11);
e) l'essai du 21.107 a été ajouté pour les unités de commande destinées à être placées sur une surface;
f) le texte du 30.102 a été aligné sur l'IEC 60335-2:17.
La présente partie 2 doit être utilisée conjointement avec la dernière édition de l'IEC 60335-1 et ses amendements sauf si cette édition l'exclut. Dans ce cas, la dernière édition qui n'exclut pas la présente partie 2 est utilisée. Elle a été établie sur la base de la sixième édition (2020) de cette norme.
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IEC 60335-2-81 ®
Edition 4.0 2024-10
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This full version of IEC 60335-2-81:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-81: Particular requirements for foot warmers and heating mats
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IEC 60335-2-81 ®
Edition 4.0 2024-10
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This full version of IEC 60335-2-81:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-81: Particular requirements for foot warmers and heating mats
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120, 97.100.10 ISBN 978-2-8322-9846-6
IEC 60335-1:2020/ISH1:2021 – 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
IEC 60335-1:2020-09/ISH1:2021-11(en)
– 2 – IEC 60335-2-81:2024 EXV © IEC 2024
CONTENTS
FOREWORD . 6
INTRODUCTION to IEC 60335-1:2020 . 9
INTRODUCTION to IEC 60335-2-81:2024 . 11
1 Scope . 12
2 Normative references . 12
3 Terms and definitions . 17
4 General requirement . 29
5 General conditions for the tests . 29
6 Classification . 34
7 Marking and instructions . 34
8 Protection against access to live parts . 43
9 Starting of motor-operated appliances . 45
10 Power input and current . 45
11 Heating . 47
12 Charging of metal-ion batteries . 53
13 Leakage current and electric strength at operating temperature . 55
14 Transient overvoltages . 58
15 Moisture resistance . 58
16 Leakage current and electric strength . 61
17 Overload protection of transformers and associated circuits . 63
18 Endurance . 64
19 Abnormal operation . 64
20 Stability and mechanical hazards . 74
21 Mechanical strength . 76
22 Construction . 80
23 Internal wiring . 93
24 Components . 95
25 Supply connection and external flexible cords . 100
26 Terminals for external conductors . 108
27 Provision for earthing . 111
28 Screws and connections . 112
29 Clearances, creepage distances and solid insulation . 115
30 Resistance to heat and fire . 123
31 Resistance to rusting . 129
32 Radiation, toxicity and similar hazards . 129
Annex A (informative) Routine tests . 148
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 150
Annex C (normative) Ageing test on motors . 171
Annex D (normative) Thermal motor protectors . 172
Annex E (normative) Needle-flame test . 173
Annex F (normative) Capacitors . 174
Annex G (normative) Safety isolating transformers . 176
Annex H (normative) Switches . 177
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 179
Annex J (normative) Coated printed circuit boards . 181
Annex K (informative) Overvoltage categories . 182
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 183
Annex M (informative) Pollution degree . 186
Annex N (normative) Proof tracking test . 187
Annex O (informative) Selection and sequence of the tests of Clause 30 . 188
Annex P (informative) Guidance for the application of this standard to appliances
used in tropical climates . 193
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 195
Annex R (normative) Software evaluation . 198
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 . 212
Annex T (normative) UV-C radiation effect on non-metallic materials . 213
Annex U (normative) Appliances intended for remote communication through public
networks . 216
Bibliography . 220
Index of defined terms . 223
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 . 130
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 . 131
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 . 132
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 . 133
Figure 5 – Small part . 134
Figure 6 – Example of an electronic circuit with low-power points . 134
Figure 7 – Test finger nail . 135
Figure 8 – Flexing test apparatus . 136
Figure 9 – Constructions of cord anchorages . 137
Figure 10 – An example of parts of an earthing terminal . 138
Figure 11 – Examples of clearances .
...
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