IEC 60335-2-108:2024

Household and similar electrical appliances - Safety - Part 2-108: Particular requirements for electrolysers

IEC 60335-2-108:2024 deals with the safety of electrolysers that produce low viscosity, ionized liquids intended for use as detergent free wash water in appliances for household and similar purposes and which conform with the standards applicable to such appliances. It applies to electrolysers tested separately, under the most severe conditions that can be expected to occur in normal use, their rated voltage being not more than 250 V including direct current (DC) supplied appliances and battery-operated appliances.
Examples of appliances that can contain electrolysers are:
- dishwashers (IEC 60335-2-5);
- washing machines (IEC 60335-2-7);
- appliances producing wash water for hygiene purposes.
This standard does not supersede the requirements of standards relevant to the particular appliance in which the electrolyser is used. However, if the electrolyser used complies with this standard, the tests for the electrolyser specified in the particular appliance standard can be unnecessary in the particular appliance or assembly. If the electrolyser control system is associated with the particular appliance control system, additional tests can be necessary on the final appliance. Guidance for additional requirements to be considered for inclusion in the end product standards for appliances that use electrolysers is given in informative Annex BB.
Attention is drawn to the fact that:
- for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements can 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 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).
This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the text has been aligned with IEC 60335-1:2020;
b) some notes have been converted to normative text (Clause 1, 22.012);
c) application of test probe 19 has been introduced (8.1.1, 20.2, B22.3, B22.4);
d) addition of external accessible surface temperatures (Clause 11).
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1:2020 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 2-108: Règles particulières pour les électrolyseurs

L’IEC 60335-2-108:2024 traite de la sécurité des électrolyseurs qui produisent des liquides ionisés à faible viscosité destinés à être utilisés comme eau de lavage sans détergent dans les appareils à usages domestiques et analogues et qui sont conformes aux normes applicables à de tels appareils. Elle s’applique aux électrolyseurs soumis aux essais séparément, dans les conditions les plus sévères qui peuvent se produire en utilisation normale, et 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.
Exemples d’appareils qui peuvent contenir des électrolyseurs:
- les lave-vaisselle (IEC 60335-2-5);
- les machines à laver le linge (IEC 60335-2-7);
- les appareils produisant de l’eau de lavage à caractère hygiénique.
La présente norme ne remplace pas les exigences des normes applicables aux appareils particuliers qui utilisent un électrolyseur. Toutefois, si l’électrolyseur utilisé est conforme à la présente norme, les essais spécifiés pour l’électrolyseur dans la norme de l’appareil particulier peuvent ne pas être nécessaires s’il est intégré dans l’appareil particulier ou fait partie d’un assemblage. Si le dispositif de commande de l’électrolyseur est associé au dispositif de commande de l’appareil particulier, des essais supplémentaires peuvent être nécessaires sur l’appareil final. Des recommandations pour les exigences supplémentaires à prendre en considération pour être rajoutées dans les normes de produit fini des appareils utilisant des électrolyseurs sont données à l’Annexe BB informative.
L’attention est attirée sur le fait que:
- pour les appareils destinés à être utilisés dans des véhicules ou à bord de navires ou d'aéronefs, des exigences supplémentaires peuvent être nécessaires;
- 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 qui présentent des conditions particulières, telles que la présence d'une atmosphère corrosive ou explosive (poussière, vapeur ou gaz).
Cette deuxième édition annule et remplace la première édition parue en 2008. 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, 22.012);
c) introduction de l’application du calibre d’essai 19 (8.1.1, 20.2, B22.3, B22.4);
d) ajout d’exigences relatives aux températures des surfaces accessibles extérieures (Article 11).
La présente partie 2 doit être utilisée conjointement avec la dernière édition de l'IEC 60335-1:2020 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.

General Information

• Status: Published
• Publication Date: 21-Mar-2024
• ICS: 13.120 - Domestic safety
• ICS: 97.060 - Laundry appliances
• Technical Committee: TC 61 - Safety of household and similar electrical appliances
• Drafting Committee: MT 37 - TC 61/MT 37
• Current Stage: PPUB - Publication issued
• Start Date: 10-Apr-2024
• Completion Date: 22-Mar-2024

Relations

• Revises: IEC 60335-2-108:2008 - Household and similar electrical appliances - Safety - Part 2-108: Particular requirements for electrolysers
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60335-2-108 ®
Edition 2.0 2024-03
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-108: Particular requirements for electrolysers
IEC 6 60335-2-108:2024-03 RLV(en)

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IEC 60335-2-108 ®
Edition 2.0 2024-03
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-108: Particular requirements for electrolysers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120; 97.060 ISBN 978-2-8322-8627-2

– 2 – IEC 60335-2-108:2024 RLV © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 9
2 Normative references . 10
3 Terms and definitions . 10
4 General requirement . 10
5 General conditions for the tests . 10
6 Classification . 11
7 Marking and instructions . 11
8 Protection against access to live parts . 11
9 Starting of motor-operated appliances . 12
10 Power input and current . 12
11 Heating . 12
12 Void Charging of metal-ion batteries . 13
13 Leakage current and electric strength at operating temperature . 13
14 Transient overvoltages . 13
15 Moisture resistance . 13
16 Leakage current and electric strength . 13
17 Overload protection of transformers and associated circuits . 14
18 Endurance . 14
19 Abnormal operation . 14
20 Stability and mechanical hazards . 14
21 Mechanical strength . 14
22 Construction . 14
23 Internal wiring . 16
24 Components . 16
25 Supply connection and external flexible cords . 16
26 Terminals for external conductors . 16
27 Provision for earthing . 16
28 Screws and connections . 16
29 Clearances, creepage distances and solid insulation . 16
30 Resistance to heat and fire . 16
31 Resistance to rusting . 16
32 Radiation, toxicity and similar hazards . 17
Annexes . 18
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 19
Annex AA (normative) Ageing test for elastomeric parts . 20
Annex BB (informative)  Guidance for additional requirements to be considered for
inclusion in the end product standards for appliances that incorporate electrolysers . 22
Bibliography . 23

Figure 101 – Probe for measuring surface temperatures . 17

Table 101 – Maximum temperature rises for specified external accessible surfaces
under normal operating conditions . 13

– 4 – IEC 60335-2-108:2024 RLV © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-108: Particular requirements for electrolysers

FOREWORD
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This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition IEC 60335-2-108:2008. A vertical bar appears in the margin
wherever a change has been made. Additions are in green text, deletions are in
strikethrough red text.
IEC 60335-2-108 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliances. It is an International Standard.
This second edition cancels and replaces the first edition published in 2008. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the text has been aligned with IEC 60335-1:2020;
b) some notes have been converted to normative text (Clause 1, 22.012);
c) application of test probe 19 has been introduced (8.1.1, 20.2, B22.3, B22.4);
d) addition of external accessible surface temperatures (Clause 11).
The text of this International Standard is based on the following documents:
Draft Report on voting
61/6955/CDV 61/7056A/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts of the IEC 60335 series, under the general title: Household and similar
electrical appliances – Safety, can be found on the IEC website.
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.
NOTE 1 When "Part 1" is me
...

IEC 60335-2-108 ®
Edition 2.0 2024-03
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 60335-2-108:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-108: Particular requirements for electrolysers
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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About the IEC
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IEC 60335-2-108 ®
Edition 2.0 2024-03
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 60335-2-108:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-108: Particular requirements for electrolysers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120; 97.060 ISBN 978-2-8322-8634-0

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 60335-2-108:2024 EXV © IEC 2024

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 . 33
8 Protection against access to live parts . 40
9 Starting of motor-operated appliances . 42
10 Power input and current . 42
11 Heating . 42
12 Charging of metal-ion batteries . 49
13 Leakage current and electric strength at operating temperature . 50
14 Transient overvoltages . 53
15 Moisture resistance . 54
16 Leakage current and electric strength . 56
17 Overload protection of transformers and associated circuits . 58
18 Endurance . 59
19 Abnormal operation . 59
20 Stability and mechanical hazards . 69
21 Mechanical strength . 70
22 Construction . 72
23 Internal wiring . 86
24 Components . 88
25 Supply connection and external flexible cords . 92
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 . 115
31 Resistance to rusting . 119
32 Radiation, toxicity and similar hazards . 119
Annex A (informative) Routine tests . 133
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 135
Annex C (normative) Ageing test on motors . 156
Annex D (normative) Thermal motor protectors . 157
Annex E (normative) Needle-flame test . 158
Annex F (normative) Capacitors . 159
Annex G (normative) Safety isolating transformers . 161

Annex H (normative) Switches . 162
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 164
Annex J (normative) Coated printed circuit boards . 166
Annex K (informative) Overvoltage categories . 167
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 168
Annex M (informative) Pollution degree . 171
Annex N (normative) Proof tracking test . 172
Annex O (informative) Selection and sequence of the tests of Clause 30 . 173
Annex P (informative) Guidance for the application of this standard to appliances
used in tropical climates . 178
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 180
Annex R (normative) Software evaluation . 183
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 . 197
Annex T (normative) UV-C radiation effect on non-metallic materials . 198
Annex U (normative) Appliances intended for remote communication through public
networks . 201
Annex AA (normative) Ageing test for elastomeric parts . 203
Annex BB (informative) Guidance for additional requirements to be considered for
inclusion in the end product standards for appliances that incorporate electrolysers . 205
Bibliography . 208
Index of defined terms . 211

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 . 120
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 . 121
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 . 122
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 . 123
Figure 5 – Small part . 124
Figure 6 – Example of an electronic circuit with low-power points . 124
Figure 7 – Test finger nail . 125
Figure 8 – Flexing test apparatus . 126
Figure 9 – Constructions of cord anchorages . 127
Figure 10 – An ex
...

IEC 60335-2-108 ®
Edition 2.0 2024-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-108: Particular requirements for electrolysers

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-108: Règles particulières pour les électrolyseurs
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International Standards for all electrical, electronic and related technologies.

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IEC 60335-2-108 ®
Edition 2.0 2024-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –

Part 2-108: Particular requirements for electrolysers

Appareils électrodomestiques et analogues – Sécurité –

Partie 2-108: Règles particulières pour les électrolyseurs

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.120, 97.060 ISBN 978-2-8322-8460-5

– 2 – IEC 60335-2-108:2024 © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 9
2 Normative references . 10
3 Terms and definitions . 10
4 General requirement . 10
5 General conditions for the tests . 10
6 Classification . 11
7 Marking and instructions . 11
8 Protection against access to live parts . 11
9 Starting of motor-operated appliances . 12
10 Power input and current . 12
11 Heating . 12
12 Charging of metal-ion batteries . 13
13 Leakage current and electric strength at operating temperature . 13
14 Transient overvoltages . 13
15 Moisture resistance . 13
16 Leakage current and electric strength . 13
17 Overload protection of transformers and associated circuits . 14
18 Endurance . 14
19 Abnormal operation . 14
20 Stability and mechanical hazards . 14
21 Mechanical strength . 14
22 Construction . 14
23 Internal wiring . 16
24 Components . 16
25 Supply connection and external flexible cords . 16
26 Terminals for external conductors . 16
27 Provision for earthing . 16
28 Screws and connections . 16
29 Clearances, creepage distances and solid insulation . 16
30 Resistance to heat and fire . 16
31 Resistance to rusting . 16
32 Radiation, toxicity and similar hazards . 17
Annexes . 18
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 19
Annex AA (normative) Ageing test for elastomeric parts . 20
Annex BB (informative) Guidance for additional requirements to be considered for
inclusion in the end product standards for appliances that incorporate electrolysers . 22
Bibliography . 23

Figure 101 – Probe for measuring surface temperatures . 17

Table 101 – Maximum temperature rises for specified external accessible surfaces
under normal operating conditions . 13

– 4 – IEC 60335-2-108:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-108: Particular requirements for electrolysers

FOREWORD
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