IEC 60335-2-17:1998

Safety of household and similar electrical appliances - Part 2-17: Particular requirements for blankets, pads and similar flexible heating appliances

Deals with the safety of electric blankets, pads and other flexible heaters which heat the bed or human body. It also deals with control units supplied with the appliance. It covers appiances with a rated voltage less than 250 V. For heaters for medical use, see IEC 60601-2-35. For heaters for animals, see IEC 60335-2-71. For water bed heaters, see IEC 60335-2-66. For foot warmers and heating mats, see IEC 60335-2-81.

Sécurité des appareils électrodomestiques et analogues - Partie 2-17: Règles particulières pour les couvertures, coussins et appareils chauffants souples analogues

Traite de la sécurité des couvertures, coussins et autres appareils souples éléctriques destinés à chauffer un lit ou le corps humain. La norme s'applique également aux unités de commande fournies avec les appareils. Elle traite des appareils dont la tension assignée est inférieure à 250V. Pour des appareils de chauffage à usage médicale, voir CEI 60601-2-35. Pour des appareils de chauffage pour animaux, voir CEI 60335-2-71. Pour des appareils de chauffage pour matelas à eau, voir CEI 60335-2-65. Pour des chancelières et tapis chauffants, voir CEI 60335-2-81.

General Information

• Status: Published
• Publication Date: 23-Nov-1998
• 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
• Completion Date: 22-Oct-2002

Relations

• Revised: IEC 60335-2-17:2002 - Household and similar electrical appliances - Safety - Part 2-17: Particular requirements for blankets, pads and similar flexible heating appliances
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL
IEC
STANDARD
60335-2-17
First edition
1998-11
Safety of household and similar
electrical appliances –
Part 2-17:
Particular requirements for blankets, pads
and similar flexible heating appliances
Sécurité des appareils électrodomestiques
et analogues –
Partie 2-17:
Règles particulières pour les couvertures, coussins
et appareils chauffants souples analogues

Reference number
Numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series.
Consolidated publications
Consolidated versions of some IEC publications including amendments are

available. 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.

Validity of this publication
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 the date of the reconfirmation of the publication is available
in the IEC catalogue.
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 to be found at the following IEC sources:
• IEC web site*
• Catalogue of IEC publications
Published yearly with regular updates
(On-line catalogue)*
• IEC Bulletin
Available both at the IEC web site* and as a printed periodical
Terminology, graphical and letter symbols
For general terminology, readers are referred to IEC 60050: International Electro-
technical Vocabulary (IEV).
For graphical symbols, and letter symbols and signs approved by the IEC for
general use, readers are referred to publications IEC 60027: Letter symbols to be
used in electrical technology, IEC 60417: Graphical symbols for use on equipment.
Index, survey and compilation of the single sheets and IEC 60617: Graphical symbols
for diagrams.
* See web site address on title page.

INTERNATIONAL
IEC
STANDARD
60335-2-17
First edition
1998-11
Safety of household and similar
electrical appliances –
Part 2-17:
Particular requirements for blankets, pads
and similar flexible heating appliances
Sécurité des appareils électrodomestiques
et analogues –
Partie 2-17:
Règles particulières pour les couvertures, coussins
et appareils chauffants souples analogues

 IEC 1998  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 Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http: //www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
X
International Electrotechnical Commission
For price, see current catalogue

– 2 – 60335-2-17  IEC:1998(E)

CONTENTS
Page
FOREWORD . 4

Clause
1 Scope . 6

2 Definitions. 6

3 General requirement . 9

4 General conditions for the tests . 9
5 Void . 10
6 Classification . 10
7 Marking and instructions . 10
8 Protection against access to live parts. 13
9 Starting of motor-operated appliances . 13
10 Power input and current . 13
11 Heating . 13
12 Void .15
13 Leakage current and electric strength at operating temperature . 15
14 Void .16
15 Moisture resistance . 16
16 Leakage current and electric strength. 17
17 Overload protection of transformers and associated circuits. 17
18 Endurance . 17
19 Abnormal operation . 18
20 Stability and mechanical hazards. 21
21 Mechanical strength . 21
22 Construction. 27
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 Creepage distances, clearances and distances through insulation . 31
30 Resistance to heat, fire and tracking. 32
31 Resistance to rusting. 34
32 Radiation, toxicity and similar hazards . 34
Annexes
AA (normative) Specification for the thermal insulation. 47
BB (normative) Apparatus for the mechanical strength test for blankets . 48

60335-2-17  IEC:1998(E) – 3 –

Page
Figures
101 Symbol for "Read the instruction" . 35

102 Symbol for "Do not use folded or rucked". 35

103 Symbol for "Do not insert pins" . 35

104 Grid for the heatstroke test. 36

105 Arrangement for measuring leakage current of the flexible part. 36

106 Arrangement for the three-thickness fold test. 37

107 Positioning of the thermal insulation on flexible parts incorporating thermostats . 38
108 Examples of the position of the thermal insulation on folded pads . 39
109 Tumbling barrel for testing the mechanical strength of pads. 40
110 Impact apparatus for testing enclosures of moisture-proof appliances. 41
111 Shape of sample for the tear resistance test . 42
112 Apparatus for flexing heating elements and internal wiring . 42
113 Arrangement for the rigidity test of ruck-resistance blankets . 43
114 Apparatus for the spark ignition test . 44
114a Details of the mask . 45
BB.1 Apparatus for the mechanical strength test . 49
BB.2 Detail of the drum and cylinders . 50
BB.3 Detail of the clamping bar. 50
Tables
101 Maximum temperatures. 14
102 Maximum temperature rises . 14

– 4 – 60335-2-17  IEC:1998(E)

INTERNATIONAL ELECTROTECHNICAL COMMISSION

___________
SAFETY OF HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –

Part 2-17: Particular requirements for blankets, pads and

similar flexible heating appliances

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 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.
International Standard IEC 60335-2-17 has been prepared by IEC technical committee 61:
Safety of household and similar electrical appliances.
This first edition of IEC 60335-2-17 cancels and replaces IEC 60967 published in 1988,
including its amendment 1 (1991) and amendment 2 (1995).
IEC 60967 cancelled and replaced IEC 335-17 published in 1974.

The text of this standard is based on the following documents:
FDIS Report on voting
61/1483/FDIS 61/1524/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 third edition (1991) of that standard.
A bilingual version of this standard may be issued at a later date.

60335-2-17  IEC:1998(E) – 5 –

This part 2 supplements or modifies the corresponding clauses of IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for electric blankets, pads

and similar flexible heating appliances.

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 1 – 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 2. When a definition of part 1 concerns an
adjective, the adjective and the associated noun are also in bold.
NOTE 2 – Subclauses, figures and tables which are additional to those in part 1 are numbered starting from 101.
Additional annexes to those in part 1 are lettered AA, BB, etc.
The following additional differences exist in some countries:
– 6.1: Class 0 products are allowed (Japan and USA).
– 19.108: The fuse is not required to rupture (Australia).
– 22.102: Thermostats and thermal cut-outs are not allowed in the flexible part of underblankets (Australia and
New Zealand).
– Annex AA: Felt is used for the thermal insulation (USA).

– 6 – 60335-2-17  IEC:1998(E)

SAFETY OF HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –

Part 2-17: Particular requirements for blankets, pads and

similar flexible heating appliances

1 Scope
This clause of part 1 is replaced by:
This standard deals with the safety of electric blankets, pads and other flexible appliances
which heat the bed or h
...

NORME CEI
INTERNATIONALE IEC
60335-2-17
INTERNATIONAL
Première édition
STANDARD
First edition
1998-11
Sécurité des appareils électrodomestiques
et analogues –
Partie 2-17:
Règles particulières pour les couvertures,
coussins et appareils chauffants souples
analogues
Safety of household and similar
electrical appliances –
Part 2-17:
Particular requirements for blankets,
pads and similar flexible heating appliances

Numéro de référence
Reference number
CEI/IEC 60335-2-17:1998
Numéros des publications 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. issued with a designation in the 60000 series.

Publications consolidées Consolidated publications

Les versions consolidées de certaines publications de Consolidated versions of some IEC publications
la CEI incorporant les amendements sont disponibles. including amendments are available. For example,

Par exemple, les numéros d’édition 1.0, 1.1 et 1.2 edition numbers 1.0, 1.1 and 1.2 refer, respectively, to

indiquent respectivement la publication de base, la the base publication, the base publication incor-
publication de base incorporant l’amendement 1, et la porating amendment 1 and the base publication
publication de base incorporant les amendements 1 incorporating amendments 1 and 2.

et 2.
Validité de la présente publication Validity of this publication
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
actuel de la technique. the content reflects current technology.
Des renseignements relatifs à la date de reconfir- Information relating to the date of the reconfirmation
mation de la publication sont disponibles dans le of the publication is available in the IEC catalogue.
Catalogue de la CEI.
Les renseignements relatifs à des questions à l’étude et Information on the subjects under consideration and
des travaux en cours entrepris par le comité technique work in progress undertaken by the technical
qui a établi cette publication, ainsi que la liste des committee which has prepared this publication, as well
publications établies, se trouvent dans les documents ci- as the list of publications issued, is to be found at the
dessous: following IEC sources:
• «Site web» de la CEI* • IEC web site*
• Catalogue des publications de la CEI • Catalogue of IEC publications
Publié annuellement et mis à jour Published yearly with regular updates
régulièrement (On-line catalogue)*
(Catalogue en ligne)*
• IEC Bulletin
• Bulletin de la CEI Available both at the IEC web site* and
Disponible à la fois au «site web» de la CEI* as a printed periodical
et comme périodique imprimé
Terminology, graphical and letter
Terminologie, symboles graphiques
symbols
et littéraux
For general terminology, readers are referred to
En ce qui concerne la terminologie générale, le lecteur IEC 60050: International Electrotechnical Vocabulary
se reportera à la CEI 60050: Vocabulaire Electro- (IEV).
technique International (VEI).
For graphical symbols, and letter symbols and signs
Pour les symboles graphiques, les symboles littéraux approved by the IEC for general use, readers are
et les signes d'usage général approuvés par la CEI, le referred to publications IEC 60027: Letter symbols to
lecteur consultera la CEI 60027: Symboles littéraux à be used in electrical technology, IEC 60417: Graphical
utiliser en électrotechnique, la CEI 60417: Symboles symbols for use on equipment. Index, survey and
graphiques utilisables sur le matériel. Index, relevé et compilation of the single sheets and IEC 60617:
compilation des feuilles individuelles, et la CEI 60617: Graphical symbols for diagrams.
Symboles graphiques pour schémas.
* See web site address on title page.
* Voir adresse «site web» sur la page de titre.

NORME CEI
INTERNATIONALE IEC
60335-2-17
INTERNATIONAL
Première édition
STANDARD
First edition
1998-11
Sécurité des appareils électrodomestiques
et analogues –
Partie 2-17:
Règles particulières pour les couvertures,
coussins et appareils chauffants souples
analogues
Safety of household and similar
electrical appliances –
Part 2-17:
Particular requirements for blankets,
pads and similar flexible heating appliances

 IEC 1998 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
utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photo-copie et les including photocopying and microfilm, without permission in
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
XA
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

– 2 – 60335-2-17  CEI:1998
SOMMAIRE
Pages
AVANT-PROPOS . 6

Articles
1 Domaine d'application . 10

2 Définitions. 10

3 Prescriptions générales . 16

4 Conditions générales d'essais . 16
5 Vacant . 18
6 Classification . 18
7 Marquage et indications . 20
8 Protection contre l'accès aux parties actives. 24
9 Démarrage des appareils à moteur. 24
10 Puissance et courant. 24
11 Echauffements . 26
12 Vacant . 30
13 Courant de fuite et rigidité diélectrique à la température de régime . 30
14 Vacant . 32
15 Résistance à l'humidité. 32
16 Courant de fuite et rigidité diélectrique. 34
17 Protection contre la surcharge des transformateurs et des circuits associés . 34
18 Endurance .36
19 Fonctionnement anormal . 36
20 Stabilité et dangers mécaniques . 42
21 Résistance mécanique . 42
22 Construction. 58
23 Conducteurs internes . 62
24 Composants. 62
25 Raccordement au réseau et câbles souples extérieurs. 62
26 Bornes pour conducteurs externes . 66

27 Dispositions en vue de la mise à la terre. 66
28 Vis et connexions . 66
29 Lignes de fuite, distances dans l'air et distances à travers l'isolation . 66
30 Résistance à la chaleur, au feu et aux courants de cheminement. 66
31 Protection contre la rouille. 70
32 Rayonnement, toxicité et dangers analogues . 70
Annexes
AA (normative) Spécification pour l'isolant thermique. 96
BB (normative) Appareillage pour l'essai de résistance mécanique des couvertures . 98

60335-2-17  IEC:1998 – 3 –
CONTENTS
Page
FOREWORD . 7

Clause
1 Scope . 11

2 Definitions. 11

3 General requirement . 17

4 General conditions for the tests . 17
5 Void . 19
6 Classification . 19
7 Marking and instructions. 21
8 Protection against access to live parts. 25
9 Starting of motor-operated appliances . 25
10 Power input and current . 25
11 Heating . 27
12 Void . 31
13 Leakage current and electric strength at operating temperature . 31
14 Void . 33
15 Moisture resistance . 33
16 Leakage current and electric strength. 35
17 Overload protection of transformers and associated circuits. 35
18 Endurance .37
19 Abnormal operation . 37
20 Stability and mechanical hazards. 43
21 Mechanical strength . 43
22 Construction. 59
23 Internal wiring . 63
24 Components. 63
25 Supply connection and external flexible cords. 63
26 Terminals for external conductors. 67

27 Provision for earthing . 67
28 Screws and connections. 67
29 Creepage distances, clearances and distances through insulation . 67
30 Resistance to heat, fire and tracking. 67
31 Resistance to rusting. 71
32 Radiation, toxicity and similar hazards . 71
Annexes
AA (normative) Specification for the thermal insulation. 97
BB (normative) Apparatus for the mechanical strength test for blankets . 99

– 4 – 60335-2-17  CEI:1998
Pages
Figures
101 Symbole pour «Lire les instructions» . 72

102 Symbole pour «Ne pas utiliser plié ou froissé». 72

103 Symbole pour «Ne pas insérer d'épingles» . 72

104 Grille pour l'essai de choc thermique .
...