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IEC 60335-2-17
Edition 3.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-17: Particular requirements for blankets, pads, clothing and similar
flexible heating appliances
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-17: Exigences particulières pour les couvertures, coussins, vêtements
et appareils chauffants souples analogues
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IEC 60335-2-17
Edition 3.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-17: Particular requirements for blankets, pads, clothing and similar
flexible heating appliances
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-17: Exigences particulières pour les couvertures, coussins, vêtements
et appareils chauffants souples analogues
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XA
CODE PRIX
ICS 13.120; 97.040.50 ISBN 978-2-8322-0040-7
– 2 – 60335-2-17 © IEC:2012
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 9
4 General requirement . 11
5 General conditions for the tests . 11
6 Classification . 13
7 Marking and instructions . 13
8 Protection against access to live parts . 16
9 Starting of motor-operated appliances . 16
10 Power input and current . 16
11 Heating . 16
12 Void. 18
13 Leakage current and electric strength at operating temperature . 18
14 Transient overvoltages . 19
15 Moisture resistance . 19
16 Leakage current and electric strength . 20
17 Overload protection of transformers and associated circuits . 21
18 Endurance . 21
19 Abnormal operation . 21
20 Stability and mechanical hazards . 25
21 Mechanical strength . 25
22 Construction . 32
23 Internal wiring . 34
24 Components . 34
25 Supply connection and external flexible cords . 35
26 Terminals for external conductors . 36
27 Provision for earthing . 36
28 Screws and connections . 36
29 Clearances, creepage distances and solid insulation . 36
30 Resistance to heat and fire . 36
31 Resistance to rusting . 39
32 Radiation, toxicity and similar hazards . 39
Annexes . 50
Annex A (informative) Routine tests . 50
Annex AA (normative) Specification for the thermal insulation . 52
Annex BB (normative) Equipment for the mechanical strength test for blankets . 53
Annex CC (normative) Clothing . 56
Bibliography . 59
60335-2-17 © IEC:2012 – 3 –
Figure 101 – Symbol for "Do not use folded or rucked" . 39
Figure 102 – Symbol for "Do not insert pins" . 39
Figure 103 – Arrangement for measuring leakage current and electric strength of the
flexible part . 40
Figure 104 – Arrangement for the three-thickness fold test . 41
Figure 105 – Examples showing the position of the thermal insulation on ruck-resistant
blankets and mattresses . 42
Figure 106 – Examples of folds and the position of the thermal insulation on pads . 43
Figure 107 – Tumbling barrel for testing the mechanical strength of pads . 44
Figure 108 – Impact apparatus for testing enclosures of moisture-proof appliances . 45
Figure 109 – Shape of the sample for the tear resistance test . 46
Figure 110 – Equipment for flexing heating elements and internal wiring . 46
Figure 111 – Arrangement for the rigidity test of ruck-resistant blankets . 47
Figure 112 – Equipment for the spark ignition test . 48
Figure 113 – Equipment for the spark ignition test – Details of the mask . 49
Figure BB.1 – Equipment for the mechanical strength test of blankets . 54
Figure BB.2 – Detail of the drum and cylinders . 55
Figure BB.3 – Detail of the clamping bar . 55
Table 101 – Maximum temperatures . 17
Table 102 – Maximum temperature rises. 17
Table A.101 – Test voltages . 50
– 4 – 60335-2-17 © IEC:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-17: Particular requirements for blankets, pads,
clothing and similar flexible heating appliances
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 f
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