IEC 60335-2-96:2024

Household and similar electrical appliances - Safety - Part 2-96: Particular requirements for flexible sheet heating elements for room heating

IEC 60335-2-96:2024 deals with the safety of flexible sheet heating elements intended to be incorporated into floors and walls below 1,2 m and above 2,3 m and in ceilings, their rated voltage being not more than 250 V for single-phase installations and 480 V for other installations including direct current (DC) supplied appliances. Flexible sheet heating elements are converted into heating units that are incorporated in the building in accordance with the instructions after which the required level of protection against hazards is achieved.
Attention is drawn to the fact that
- in many countries, different wiring rules apply;
- for heating units 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 authorities for fire protection, the national authorities for building regulations, the national health authorities, the national authorities responsible for the protection of labour and similar authorities.
This standard does not apply to
- heating units intended exclusively for industrial purposes;
- heating units intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);
- blankets, pads, clothing and similar flexible heating appliances (IEC 60335-2-17);
- foot warmers and heating mats (IEC 60335-2-81);
- heated carpets and for heating units for room heating installed under removable floor coverings (IEC 60335-2-106);
- flexible sheet heating elements incorporated in other appliances.
This third edition cancels and replaces the second edition published in 2019. 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, 5.2, 7.12.101);
c) correction to reinstate the touch current limit in 22.105.
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 2-96: Exigences particulières pour les films souples chauffants pour le chauffage des locaux

L'IEC 60335-2-96:2024 traite de la sécurité des films souples chauffants destinés à être intégrés aux planchers, aux murs au-dessous d'une hauteur de 1,2 m et au-dessus d'une hauteur de 2,3 m ainsi qu'aux plafonds, leur tension assignée ne dépassant pas 250 V pour les installations monophasées et 480 V pour les autres installations, y compris les appareils alimentés en courant continu. Les films souples chauffants sont convertis en unités chauffantes qui sont intégrées au bâti conformément aux instructions relatives à l'installation après laquelle le niveau de protection contre les dangers est atteint.
L'attention est attirée sur le fait que
- dans de nombreux pays, des règles d'installation différentes s'appliquent;
- pour les unités chauffantes destinées à être utilisées dans des véhicules ou à bord de navires ou d'avions, des exigences supplémentaires peuvent être nécessaires;
- dans de nombreux pays, des exigences supplémentaires sont spécifiées par les organismes nationaux responsables de la protection contre l'incendie, par les organismes nationaux responsables des règlements d'installation, par les organismes nationaux de la santé, par les organismes nationaux responsables de la protection des travailleurs et par des organismes similaires.
La présente norme ne s'applique pas
- aux unités chauffantes prévues exclusivement pour des usages industriels;
- aux unités chauffantes destinées à être utilisées dans des locaux qui présentent des conditions particulières, telles que la présence d'une atmosphère corrosive ou explosive (poussière, vapeur ou gaz);
- aux couvertures, coussins, vêtements et appareils chauffants souples analogues (IEC 60335-2-17);
- aux chancelières et carpettes chauffantes (IEC 60335-2-81);
- aux tapis chauffants et aux unités chauffantes pour le chauffage des locaux, installés sous des revêtements de sol amovibles (IEC 60335-2-106);
- aux films souples chauffants intégrés dans d'autres appareils.
Cette troisième édition annule et remplace la deuxième édition parue en 2019. 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, 5.2, 7.12.101);
c) le 22.105 a été corrigé pour rétablir la limite du courant de contact.
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.

General Information

• Status: Published
• Publication Date: 28-Oct-2024
• ICS: 13.120 - Domestic safety
• ICS: 97.100.10 - Electric heaters
• 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: 25-Oct-2024
• Completion Date: 29-Oct-2024

Relations

• Revises: IEC 60335-2-96:2019 - Household and similar electrical appliances - Safety - Part 2-96: Particular requirements for flexible sheet heating elements for room heating
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60335-2-96 ®
Edition 3.0 2024-10
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-96: Particular requirements for flexible sheet heating elements for room
heating
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 Secretariat Tel.: [phone]
3, rue de Varembé [e-mail]
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 IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.
IEC Just Published - webstore.iec.ch/justpublished
Electropedia - www.electropedia.org
Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and
containing more than 22 500 terminological entries in English
once a month by email.
and French, with equivalent terms in 25 additional languages.
Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: [e-mail].
IEC 60335-2-96 ®
Edition 3.0 2024-10
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-96: Particular requirements for flexible sheet heating elements for room
heating
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.100.10, 13.120 ISBN 978-2-8322-0050-6
– 2 – IEC 60335-2-96:2024 CMV © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
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 . 16
9 Starting of motor-operated appliances . 17
10 Power input and current . 17
11 Heating . 17
12 Void Charging of metal-ion batteries . 21
13 Leakage current and electric strength at operating temperature . 21
14 Transient overvoltages . 22
15 Moisture resistance . 22
16 Leakage current and electric strength . 22
17 Overload protection of transformers and associated circuits . 23
18 Endurance . 23
19 Abnormal operation . 26
20 Stability and mechanical hazards . 26
21 Mechanical strength . 26
22 Construction . 28
23 Internal wiring . 30
24 Components . 30
25 Supply connection and external flexible cords . 30
26 Terminals for external conductors . 31
27 Provision for earthing . 31
28 Screws and connections . 31
29 Clearances, creepage distances and solid insulation . 31
30 Resistance to heat and fire . 32
31 Resistance to rusting . 32
32 Radiation, toxicity and similar hazards . 32
Annexes . 46
Annex AA (informative) Summary of installation instructions . 47
Bibliography . 50
List of comments . 51
Figure 101 – Arrangement for testing heating units in timber ceilings . 33
Figure 102 – Arrangement for testing modular heating units . 34
Figure 103 – Arrangement for testing heating units in timber floors . 35

Figure 104 – Arrangement for testing heating units above timber floors . 36
Figure 105 – Arrangement for testing heating units below concrete . 37
Figure 107 – Arrangement for testing heating units in timber floors and ceilings in
combination . 39
Figure 108 – Arrangement for testing heating units in timber walls . 40
Figure 109 – Arrangement for testing heating units in both sides of timber wall
applications . 41
Figure 110 – Arrangement for testing heating units intended to be installed in a wall of
concrete or similar materials . 42
Figure 111 – Arrangement for testing heating units against wall of concrete or similar
materials . 43
Figure 112 – Jig for locating the contact needle . 44
Figure 113 – Arrangement for measuring capacitive currents . 45
Table 101 – Temperature rise limits for surfaces . 21
Table AA.1 – Summary of installation instructions . 48

– 4 – IEC 60335-2-96:2024 CMV © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-96: Particular requirements for flexible
sheet heating elements for room heating

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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
This commented version (CMV) of the official standard IEC 60335-2-96:2024 edition 3.0
allows the user to identify the changes made to the previous IEC 60335-2-96:20019
edition 2.0. Furthermore, comments from IEC TC 61 experts are provided to explain the
reasons of the most relevant changes, or to clarify any part of the content.
A vertical bar appears in the margin wherever a change has been made. Additions are in
green text, deletions are in strikethrough red text. Experts' comments are identified by a
blue-background number. Mouse over a number to display a pop-up note with the
comment.
This publication contains the CMV and the
...

IEC 60335-2-96 ®
Edition 3.0 2024-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-96: Particular requirements for flexible sheet heating elements for room
heating
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-96: Exigences particulières pour les films souples chauffants pour le
chauffage des locaux
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.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Secretariat Tel.: [phone]
3, rue de Varembé [e-mail]
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 IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.

IEC Just Published - webstore.iec.ch/justpublished
Electropedia - www.electropedia.org
Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and once
containing more than 22 500 terminological entries in English
a month by email.
and French, with equivalent terms in 25 additional languages.

Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
If you wish to give us your feedback on this publication or need

further assistance, please contact the Customer Service
Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC -  IEC Products & Services Portal - products.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications, symboles
en utilisant différents critères (numéro de référence, texte, graphiques et le glossaire. Avec un abonnement, vous aurez
comité d’études, …). Elle donne aussi des informations sur les toujours accès à un contenu à jour adapté à vos besoins.
projets et les publications remplacées ou retirées.

Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au monde,
Restez informé sur les nouvelles publications IEC. Just
avec plus de 22 500 articles terminologiques en anglais et en
Published détaille les nouvelles publications parues.
français, ainsi que les termes équivalents dans 25 langues
Disponible en ligne et une fois par mois par email.
additionnelles. Egalement appelé Vocabulaire

Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 60335-2-96 ®
Edition 3.0 2024-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –

Part 2-96: Particular requirements for flexible sheet heating elements for room

heating
Appareils électrodomestiques et analogues – Sécurité –

Partie 2-96: Exigences particulières pour les films souples chauffants pour le

chauffage des locaux
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.100.10, 13.120 ISBN 978-2-8322-9753-7

– 2 – IEC 60335-2-96:2024 © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
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 . 16
9 Starting of motor-operated appliances . 17
10 Power input and current . 17
11 Heating . 17
12 Charging of metal-ion batteries . 21
13 Leakage current and electric strength at operating temperature . 21
14 Transient overvoltages . 22
15 Moisture resistance . 22
16 Leakage current and electric strength . 22
17 Overload protection of transformers and associated circuits . 23
18 Endurance . 23
19 Abnormal operation . 25
20 Stability and mechanical hazards . 26
21 Mechanical strength . 26
22 Construction . 28
23 Internal wiring . 30
24 Components . 30
25 Supply connection and external flexible cords . 30
26 Terminals for external conductors . 31
27 Provision for earthing . 31
28 Screws and connections . 31
29 Clearances, creepage distances and solid insulation . 31
30 Resistance to heat and fire . 32
31 Resistance to rusting . 32
32 Radiation, toxicity and similar hazards . 32
Annexes . 46
Annex AA (informative) Summary of installation instructions . 47
Bibliography . 50

Figure 101 – Arrangement for testing heating units in timber ceilings . 33
Figure 102 – Arrangement for testing modular heating units . 34
Figure 103 – Arrangement for testing heating units in timber floors . 35
Figure 104 – Arrangement for testing heating units above timber floors . 36

Figure 105 – Arrangement for testing heating units below concrete . 37
Figure 107 – Arrangement for testing heating units in timber floors and ceilings in
combination . 39
Figure 108 – Arrangement for testing heating units in timber walls . 40
Figure 109 – Arrangement for testing heating units in both sides of timber wall
applications . 41
Figure 110 – Arrangement for testing heating units intended to be installed in a wall of
concrete or similar materials . 42
Figure 111 – Arrangement for testing heating units against wall of concrete or similar
material . 43
Figure 112 – Jig for locating the contact needle . 44
Figure 113 – Arrangement for measuring capacitive currents . 45

Table 101 – Temperature rise limits for surfaces . 21
Table AA.1 – Summary of installation instructions . 48

– 4 – IEC 60335-2-96:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-96: Particular requirements for flexible
sheet heating elements for room heating

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
Committ
...