IEC 60335-2-17:2002
(Main)Household and similar electrical appliances - Safety - Part 2-17: Particular requirements for blankets, pads and similar flexible heating appliances
Household and similar electrical appliances - Safety - Part 2-17: Particular requirements for blankets, pads and similar flexible heating appliances
Deals with the safety of electric blankets, pads and other flexible appliances for heating the bed or human body, for household and similar purposes, their rated voltage being not more than 250 V. This standard also deals with the control units supplied with the appliance.
Appareils électrodomestiques et analogues - Sécurité - Partie 2-17: Règles particulières pour les couvertures, coussins et appareils chauffants souples analogues
Traite de la sécurité des couvertures, coussins et autres appareils électriques souples, destinés à chauffer un lit ou le corps humain, pour usages domestiques et analogues et dont la tension assignée n'est pas supérieure à 250 V. Cette norme s'applique également aux unités de commande fournies avec l'appareil.
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Standards Content (Sample)
INTERNATIONAL IEC
STANDARD
60335-2-17
Second edition
2002-10
Household and similar electrical appliances –
Safety –
Part 2-17:
Particular requirements for blankets, pads
and similar flexible heating appliances
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-17:
Règles particulières pour les couvertures, coussins
et appareils chauffants souples analogues
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
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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.
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INTERNATIONAL IEC
STANDARD
60335-2-17
Second edition
2002-10
Household and similar electrical appliances –
Safety –
Part 2-17:
Particular requirements for blankets, pads
and similar flexible heating appliances
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-17:
Règles particulières pour les couvertures, coussins
et appareils chauffants souples analogues
IEC 2002 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, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
XA
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue
– 2 – 60335-2-17 IEC:2002(E)
CONTENTS
FOREWORD . 4
INTRODUCTION .6
1 Scope . 7
2 Normative references. 7
3 Definitions . 8
4 General requirement . 9
5 General conditions for the tests .10
6 Classification .11
7 Marking and instructions .11
8 Protection against access to live parts .13
9 Starting of motor-operated appliances .13
10 Power input and current.13
11 Heating.14
12 Void .16
13 Leakage current and electric strength at operating temperature .16
14 Transient overvoltages.16
15 Moisture resistance.16
16 Leakage current and electric strength .17
17 Overload protection of transformers and associated circuits.18
18 Endurance .18
19 Abnormal operation.18
20 Stability and mechanical hazards.21
21 Mechanical strength.21
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 .34
32 Radiation, toxicity and similar hazards .34
Annexes.48
Annex A (informative) Routine tests .48
Annex AA (normative) Specification for the thermal insulation.49
Annex BB (normative) Equipment for the mechanical strength test for blankets.50
Bibliography.53
60335-2-17 IEC:2002(E) – 3 –
Figure 101 – Symbol for "Do not use folded or rucked".35
Figure 102 – Symbol for "Do not insert pins" .35
Figure 103 – Grid for heatstroke test.36
Figure 104 – Arrangement for measuring leakage current and electric strength of the
flexible part .37
Figure 105 – Arrangement for the three-thickness fold test.38
Figure 106 – Different positions of the thermal insulation on flexible parts incorporating
thermostats .39
Figure 107 – Examples of folds and the position of the thermal insulation on pads.40
Figure 108 – Tumbling barrel for testing the mechanical strength of pads .41
Figure 109 – Impact apparatus for testing enclosures of moisture-proof appliances .42
Figure 110 – Shape of the sample for the tear resistance test .43
Figure 111 – Equipment for flexing heating elements and internal wiring.44
Figure 112 – Arrangement for the rigidity test of ruck-resistant blankets.45
Figure 113 – Equipment for the spark ignition test.46
Figure 113a – Details of the mask .47
Figure BB.1 – Equipment for the mechanical strength test of blankets.51
Figure BB.2 – Detail of the drum and cylinders.52
Figure BB.3 – Detail of the clamping bar .52
Table 101 – Maximum temperatures.15
Table 102 – Maximum temperature rises.15
Table A.101 – Test voltages.48
– 4 – 60335-2-17 IEC:2002(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
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 specifications, 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.
This part of International Standard IEC 60335 has been prepared by IEC technical committee
61: Safety of household and similar electrical appliances.
This second edition cancels and replaces the first edition published in 1998. It constitutes a
technical revision.
The text of this part of IEC 60335 is based on the following documents:
FDIS Report on voting
61/2168/FDIS 61/2249/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 fourth edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for electric blankets, pads
and similar flexible heating appliances.
NOTE 2 Annex AA contains provisions from ISO 2439.
60335-2-17 IEC:2002(E) – 5 –
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 3 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
NOTE 4 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 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
The committee has decided that the contents of this publication will remain unchanged until
2004. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
The following differences exist in the countries indicated below.
– 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).
A bilingual version of this publication may be issued at a later date.
– 6 – 60335-2-17 IEC:2002(E)
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in
normal use taking into account the manufacturer's instructions. It also covers abnormal
situations that can be expected in practice.
This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply
mains. However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of
the requirements and, if found to be substantially equivalent, may be considered to comply
with the standard.
60335-2-17 IEC:2002(E) – 7 –
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-17: Particular requirements for blankets, pads
and similar flexible heating appliances
1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of electric blankets, pads and other flexible
appliances that heat the bed or human body, for household and similar purposes, their rated
voltage being not more than 250 V.
This standard also applies to control units supplied with the appliance.
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
– the use of appliances by young children or infirm persons without supervision;
– playing with the appliance by young children.
NOTE 101 Children are considered to be old enough to use an appliance without supervision when they have
been adequately instructed by a parent or guardian and are deemed competent to use the appliance safely.
NOTE 102 Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be
necessary;
– in many countries, additional requirements are specified by the national health authorities, the national
authorities responsible for the protection of labour and similar authorities.
NOTE 103 This standard does not apply to
– 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);
– rigid bed warmers, such as those of metal or ceramic material;
– water bed heaters (IEC 60335-2-66);
– heating appliances for breeding and rearing animals (IEC 60335-2-71);
– foot warmers and heating mats (IEC 60335-2-81);
– appliances specifically intended for use under medical supervision (IEC 60601-2-35).
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
ISO 2439, Flexible cellular polymeric materials – Determination of hardness (indentation
technique)
ISO 3758, Textiles – Care labelling code using symbols
– 8 – 60335-2-17 IEC:2002(E)
3 Definitions
This clause of Part 1 is applicable except as follows.
3.1.9 Replacement:
normal operation
operation of the appliance under the following conditions
Blankets and pads are placed between sheets of thermal insulation.
Duvets are placed on a sheet of thermal insulation but not covered.
Mattresses are covered by a sheet of thermal insulation.
NOTE 101 The specification for the thermal insulation is given in Annex AA.
The flexible part is supported on a plywood base 20 mm thick and positioned not less than
300 mm above the floor. The size of the plywood base is such that the thermal insulation can
be fully supported over its entire area. The size of the sheets of thermal insulation is such that
the edges extend at least 100 mm beyond the outline of the heated area.
3.8.4 Replacement
PTC heating element
heating element consisting of two conductors separated by conductive material that has a
rapid non-linear increase in resistance when the temperature is raised through a particular
range
3.101
flexible part
all layers of material forming the permanent enclosure of the appliance together with the
heating element, thermostats and all other current-carrying parts contained within it
NOTE The flexible part may be inside a detachable cover.
3.102
blanket
appliance comprising a substantially flat flexible part that is intended to form part of the
bedding, for heating the bed
3.103
underblanket
blanket intended to be used under the occupant of the bed
3.104
ruck-resistant blanket
underblanket that has sufficient rigidity to prevent rucking of the flexible part
3.105
overblanket
blanket intended to be used over the occupant of the bed
3.106
duvet
quilted overblanket intended to be used without additional bedding over the occupant of the
bed, the heating element providing supplementary heat
60335-2-17 IEC:2002(E) – 9 –
3.107
pad
appliance comprising a flexible part having a heated area not exceeding 0,2 m on each face
and which is intended to heat part of the human body
3.108
mattress
appliance for supporting the bedding and which incorporates an upholstered flexible part for
heating the bed
3.109
controlled appliance
appliance incorporating means in the flexible part for sensing changes in temperature when
the appliance is operated under normal operation, thus automatically controlling the average
power input
3.110
heating element
heating conductor, including the core on which it is wound and the insulation, together with
any other integrated conductor
3.111
heated area
area of the flexible part enclosed within the outer perimeter of the heating element. It
includes a margin outside the perimeter that has a width equal to 0,5 times the average
distance between adjacent runs of the heating element.
NOTE 1 The heated area includes the return length of the heating element if the average distance between this
part and the adjacent heating element does not exceed the average distance between adjacent runs of the
heating element.
NOTE 2 If a blanket or mattress has two separate heated areas, the surface between the two areas is
considered to be part of the heated areas, if at any place the distance between the two heating elements does
not exceed 1,5 times the average distance between adjacent runs of the heating element.
3.112
moisture-proof appliance
appliance having a flexible part that is suitable for use under moist conditions
3.113
bonded enclosure
enclosure of the flexible part that has the opposite faces joined together by means of an
adhesive or by welding
NOTE The bonded enclosure may include several bonded layers of material.
3.114
control unit
device, external to the flexible part, by means of which the average power input of the
appliance can be adjusted or regulated
NOTE 1 Control units may be incorporated in the supply cord or at the end of an interconnection cord.
NOTE 2 Multi-position cord switches are not considered to be control units unless they incorporate components
for regulating the power input.
4 General requirement
This clause of Part 1 is applicable.
– 10 – 60335-2-17 IEC:2002(E)
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.2 Modification:
The tests are carried out on two appliances, identified as appliance A and appliance B.
Addition:
For appliances having a bonded enclosure, an additional appliance is required for the tests
of 21.108 and 21.111. For other appliances, a length of 15 m of heating element is required
for the tests of 21.111.
For moisture-proof pads subjected to the tests of 21.110, five additional appliances and
1 m of enclosure material are required.
If heat-shrink material is used to insulate connections in the flexible part, a sample at least
150 mm in length is required for the test of 30.102.
NOTE 101 An additional appliance may be required for the test of 19.110.
NOTE 102 If a further appliance is required in order to continue testing after a test of Clause 19, it has to be
adequately preconditioned taking into account 21.102 to 21.107.
NOTE 103 Additional samples of pads may be required for the test of 30.101.
5.3 Replacement:
The order in which the tests are carried out is as follows:
Appliance A: 7, 22.11, 8, 22.112, 10, 11.101, 21.102 to 21.107, 22.108, 13, 15, 16, 17, 20,
25.15, 25.16, 19, 21.108, 22.18, 30, 31 and 32.
Appliance B: 10, 11 (remainder), 21, 21.101, 22 (remainder), 23, 24, 25 (remainder), 26, 27,
28, 29 and 14.
NOTE 101 Duvets are tested as overblankets.
The flexible part of washable appliances is laundered twice in accordance with the
instructions before testing is started.
If it is evident from the construction of the appliance that a particular test is not applicable, the
test is not carried out.
5.5 Addition:
If the flexible part of the appliance is provided with a detachable cover, the tests are carried
out with or without this cover, whichever is more unfavourable. However, duvets are tested
without a detachable cover.
If the heating element can move in the channels, it is manipulated so that the individual runs
are placed in the most unfavourable position.
5.6 Addition:
When testing appliances for d.c. only, the possible influence of polarity on the operation of the
appliance is taken into account.
60335-2-17 IEC:2002(E) – 11 –
5.7 Modification:
For flexible parts incorporating PTC heating elements, the tests of Clauses 10, 11 and 19
are carried out at the most unfavourable ambient temperature within the range of 0 °C to
25 °C.
For other controlled blankets and mattresses, the tests of Clauses 10, 11 and 19 are
carried out at the most unfavourable ambient temperature within the range of 0 °C to 15 °C.
5.8.1 Addition:
Appliances for d.c. only are tested with d.c.
5.8.2 Addition:
Controlled appliances are supplied as specified for motor-operated appliances.
NOTE Appliances incorporating PTC heating elements within the flexible part are considered to be controlled
appliances.
6 Classification
This clause of Part 1 is applicable except as follows.
6.1 Modification:
Appliances shall be class II or class III. Class III appliances shall have a rated voltage not
exceeding 24 V.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Modification:
Appliances shall be marked with the rated power input.
Parts of class III construction shall not be marked with the rated voltage of the appliance.
Addition:
Flexible parts and detachable covers shall be marked with the name, trademark or
identification mark of the manufacturer or responsible vendor.
Detachable covers shall be marked with the model or type reference of the appliance with
which they are intended to be used.
The flexible part of appliances to be used with a detachable control unit shall be marked
with the reference of the control unit to be used.
The flexible part of appliances to be used with a detachable transformer shall be marked
with the reference of the transformer to be used.
– 12 – 60335-2-17 IEC:2002(E)
Flexible parts and detachable covers shall be marked with the substance of the following:
– read the instructions or symbol 1641 of ISO 7000;
– do not use folded or by the symbol shown in Figure 101 (this marking is not required for
duvets, mattresses and appliances with PTC heating elements);
– do not use rucked or by the symbol shown in Figure 101 (this marking is required only for
underblankets, other than those with PTC heating elements);
– do not insert pins or by the symbol shown in Figure 102;
– underblanket or overblanket, as appropriate;
– do not use if wet (this marking is not required for moisture-proof appliances);
– do not use with a helpless person, an infant or a person insensitive to heat;
– overlong application at high setting can result in skin burns (this marking is required only
for pads, other than those having a timer that switches off the supply after a period not
exceeding 1 h).
NOTE 101 The words "at high setting" are not required on pads without temperature adjustment.
The flexible part of blankets and detachable covers shall be marked with the appropriate
laundering symbols specified in ISO 3758.
7.12 Addition:
The instructions shall contain the substance of the following:
Important instructions. Retain for future use.
The instructions shall contain the substance of the instructions required in 7.1. If symbols are
used, they shall be explained.
The instructions for underblankets, other than blankets having a ruck-resistance greater
than 1,2 as determined in 22.106, shall state how the blanket is to be secured to the bed.
The instructions shall specify the appropriate settings of the control for all-night use of the
appliance.
The instructions for pads shall contain a warning that the user should not fall asleep when the
appliance is in use.
NOTE 101 The requirement does not apply to pads fitted with a timer that switches off the supply after a period
not exceeding 1 h.
The instructions for appliances provided with detachable control units or detachable
transformers shall state that the appliance is only to be used with the types that are marked
on the appliance.
The instructions for duvets shall state the length and width of the detachable cover to be
used.
The instructions for appliances containing a fuse link or thermal link shall state that the
appliance must be returned to the manufacturer or his agent if the link has ruptured.
The instructions shall state the substance of the following:
– when not in use, store as follows (quote necessary instructions);
– avoid creasing the appliance (for blankets and pads only);
60335-2-17 IEC:2002(E) – 13 –
– examine the appliance frequently for signs of wear or damage. If there are such signs or if
the appliance has been misused, return it to the supplier prior to any further use;
– this appliance is not intended for medical use in hospitals.
The instructions for blankets shall state the substance of the following:
– do not tuck in;
– do not use on an adjustable bed, or, if used on an adjustable bed, check that the blanket
or cord cannot become trapped or rucked;
– this blanket is not to be used by young children unless the controls have been pre-set by a
parent or guardian, or unless the child has been adequately instructed on how to operate
the controls safely.
7.14 Modification:
Instead of petroleum spirit, liquid detergent is used to check the marking on flexible parts
and detachable covers.
Addition:
The height of the lettering on the flexible part shall be at least 2,5 mm.
The height of the symbols shown in Figure 101 and Figure 102 shall be at least 15 mm.
The height of the words "Important instructions” and ”Retain for future use" shall be at least
6 mm.
Compliance is checked by measurement.
7.101 Detachable control units shall be marked with a reference number or by other
means of identification.
Compliance is checked by inspection.
8 Protection against access to live parts
This clause of Part 1 is applicable.
9 Starting of motor-operated appliances
This clause of Part 1 is not applicable.
10 Power input and current
This clause of Part 1 is applicable except as follows.
10.1 Modification:
The negative deviation in Table 1 is increased to 20 %.
10.101 The power input of appliances incorporating PTC heating elements shall signifi-
cantly decrease with an increase in temperature.
– 14 – 60335-2-17 IEC:2002(E)
Compliance is checked by the following test.
The appliance is supplied at rated voltage and operated under normal operation. The power
input shall have decreased by at least 50 % from the initial value when steady conditions are
established, any control operating during this period being short-circuited.
11 Heating
This clause of Part 1 is applicable except as follows.
11.2 Modification:
The plywood base is placed away from the walls of the test corner.
Cord switches, and control units held in the hand when they are actuated, are positioned to
hang away from the plywood base. Other control units are placed on a supporting surface
away from the plywood base.
Addition:
Duvets, other than those with PTC heating elements, are also tested folded. A single fold
across the complete width of the duvet is made at a quarter of the length from one end.
Controls are adjusted to the highest setting intended for all night use.
11.3 Addition:
Thermocouples used for determining the temperature of a heating element are tied to it with
textile thread over a length of at least 10 mm.
Thermocouples used for determining the temperature of the surface of pads are attached to
plates of copper or brass measuring 65 mm × 65 mm × 0,5 mm. The plates are positioned to
cover as many heating element runs as possible, with one side parallel to the direction of the
run. The temperatures are determined at not less than six places, three on each outer surface
of the flexible part.
11.4 Addition:
Controlled appliances and appliances having a flexible part of class III construction are
supplied with the most unfavourable voltage between 0,94 and 1,06 times rated voltage.
11.7 Replacement:
Appliances are operated until steady conditions are established.
11.8 Addition:
For controlled appliances, the temperatures shall not exceed the values shown in
Table 101.
60335-2-17 IEC:2002(E) – 15 –
Table 101 – Maximum temperatures
Temperature
Part
°C
Heating element of blankets and mattresses
– before the second operation of the thermal control 115
– under steady conditions 95
Heating element of pads
a
– before the second operation of the thermal control
– under steady conditions
Surface of pads b
a
A temperature of 140 °C is allowed for a period of 10 min.
b
A temperature of 85 °C is allowed as long as the surface temperature
does not exceed 60 °C at a lower setting of the control.
For other appliances, the temperature rises shall not exceed the values shown in Table 102.
Table 102 – Maximum temperature rises
Temperature rise
Part
a
K
Heating element 80
Surface of pads 45
a
These values are based on the normal ambient temperature of
the appliance and take into consideration the maximum allowed
ambient temperatures during the test.
NOTE 101 If the ends of the heating element of pads are contained in a plastic sheath attached to the flexible
part, the temperature or temperature rise specified for the surface also applies to the accessible surface of the
sheath.
11.101 It shall be possible to operate blankets and mattresses without risk of heatstroke to
the user.
Compliance is checked by the following test:
The appliance is supplied as specified in 11.4 and operated under normal operation. The
ambient temperature is maintained at the most unfavourable temperature in the range from
0 °C to 15 °C. Any control unit or cord switch is adjusted to the highest setting recommended
for all night use.
When steady conditions are established, but at least 1 h after switching on the appliance, the
temperature of the surface of the flexible part is measured using the resistance method by
means of the grid shown in Figure 103. The grid is 300 mm wide and of sufficient length to
cover four runs of the heating element, but not less than 300 mm. The grid is placed in
contact with the flexible part so that the wires of the grid are perpendicular to the runs of the
heating element. For overblankets the grid is placed under the flexible part. For
underblankets and mattresses, the grid is placed over the flexible part.
The temperature shall not exceed 37 °C.
NOTE If the ends of the heating element are contained in a plastic sheath attached to the flexible part, the
temperature limit specified also applies to the accessible surface of the sheath.
– 16 – 60335-2-17 IEC:2002(E)
12 Void
13 Leakage current and electric strength at operating temperature
This clause of Part 1 is applicable except as follows.
13.1 Modification:
Controlled appliances are supplied at 1,06 times the rated voltage.
Addition:
For mattresses, a sheet of metal foil, approximately 0,1 mm thick and of sufficient size to
cover the area of that part of the mattress incorporating the current-carrying parts, is inserted
between the mattress and the sheet of thermal insulation. For other appliances, two such
sheets of metal foil are inserted, one above and one below the flexible part, these sheets
being electrically connected together. A uniformly distributed load of approximately 35 kg/m
is placed on the top sheet of thermal insulation.
The arrangement is shown in Figure 104.
13.2 Modification:
For the flexible part, the leakage current is measured between any pole of the supply and the
sheets of metal foil.
Instead of the values specified, the leakage current for the flexible part shall not exceed
– for pads, 0,5 mA;
–for blankets and mattresses, 1 mA/m of the heated area, with a maximum of 2,5 mA.
13.3 Modification:
For the flexible part, the test voltage is applied between live parts and the sheets of metal
foil.
14 Transient overvoltages
This clause of Part 1 is applicable.
15 Moisture resistance
This clause of Part 1 is applicable except as follows.
15.1 Addition:
For the flexible part, compliance is checked as follows:
–for blankets and pads, by the test of 15.101;
–for moisture-proof appliances, by the tests of 15.101 and 15.102. However pads
subjected to the tests of 21.109 and 21.110 are not subjected to the tests of 15.102;
–for mattresses, by the tests of 15.103.
60335-2-17 IEC:2002(E) – 17 –
NOTE 101 The tests of Clause 16 are carried out with the appliance still immersed or in contact with the saline
solution.
NOTE 102 Flexible parts of class III construction are not subjected to the tests.
15.3 Addition:
The flexible part is not subjected to the test.
15.101 Washable appliances are laundered according to the instructions.
The flexible part is then immersed for 1 h in water containing approximately 1 % NaCl at a
temperature of 20 °C ± 5 °C after removing detachable parts. All of the flexible part is
immersed except
– appliance inlets;
– the point of entry of the flexible cord, unless it is a moisture-proof appliance;
– the connections of the heating element or internal wiring to the appliance inlet.
NOTE 1 All parts of the flexible part are immersed during laundering.
The appliance shall then withstand the electric strength test of 16.3 and inspection shall show
that there is no trace of water on insulation that could result in a reduction of clearances and
creepage distances below the values specified in Clause 29.
NOTE 2 The inspection is not carried out on appliances subjected to the test of 15.102.
15.102 An incision is made in the outer layer of the permanent enclosure and the flexible
part is then immersed in the saline solution that is allowed to penetrate freely into the interior.
After a period of 1 h, the appliance shall withstand the electric strength test of 16.3, the test
voltage, however, being 1 250 V. Inspection shall show that water has not penetrated into the
flexible part to such an extent that it could come into contact with heating elements and
other current-carrying parts.
15.103 Mattresses are supported on a piece of plywood. A quantity of water, containing
approximately 1 % NaCl, corresponding to 1 l/m of the upper surface area, is poured
uniformly over the mattress at the rate of 1 l/min.
The saline solution is allowed to soak into the mattress for a period of 30 min.
The flexible part shall then withstand the electric strength test of 16.3 and inspection shall
show that there is no trace of water on insulation that could result in a reduction of
clearances and creepage distances below the values specified in Clause 29.
16 Leakage current and electric strength
This clause of Part 1 is applicable except as follows.
16.2 Addition:
The flexible part of blankets and pads is tested with the voltage applied between live parts
and an electrode immersed in the saline solution.
The flexible part of mattresses is covered with metal foil.
– 18 – 60335-2-17 IEC:2002(E)
The leakage current of flexible parts shall not exceed
–for pads, 1 mA;
–for blankets and mattresses, 5 mA.
16.3 Modification:
The flexible part of blankets and pads is tested with the voltage applied between live parts
and an electrode immersed in the saline solution. However, when the test is carried out on
blankets and pads without first carrying out the tests of Clause 15, the flexible part is
covered with metal foil instead.
Addition:
After the test, the flexible part of blankets and pads is thoroughly rinsed in water and then
allowed to dry for at least 24 h at a temperature between 20 °C and 40 °C. During the drying
period, the appliance is stretched in an attempt to regain the original dimensions.
Mattresses are rinsed with a quantity of water corresponding to 0,5 l/m of the upper surface.
The water is poured evenly over the upper surface and then wiped with a sponge, soaking up
as much water as possible. This treatment is carried out three times and the mattress is then
wiped with a dry cloth.
17 Overload protection of transformers and associated circuits
This clause of Part 1 is applicable.
18 Endurance
This clause of Part 1 is not applicable.
19 Abnormal operation
This clause of Part 1 is applicable except as follows.
19.1 Modification:
Instead of the tests specified, the following applies.
Blankets, other than ruck-resistant blankets, are subjected to the tests of 19.101 to 19.103
and 19.108.
Ruck-resistant blankets are subjected to the tests of 19.104, 19.105 and 19.108.
Pads are subjected to the tests of 19.104, 19.106 and 19.108.
Mattresses are subjected to the tests of 19.104 and 19.108.
Appliances incorporating a fuse-link or intentionally weak part that ruptures due to a short
circuit are also subjected to the test of 19.107.
NOTE 101 Fuse-links that are incorporated in an appliance for compliance with 19.102 to 19.106 are not
subjected to the tests of 19.12.
60335-2-17 IEC:2002(E) – 19 –
Appliances incorporating electronic circuits are also subjected to the tests of 19.11 and 19.12.
Unless otherwise specified, the appliance is supplied with a voltage
– between 0,9 times and 1,1 times the rated voltage, for controlled appliances,
– resulting in a power input between 0,85 times and 1,24 times the rated power input, for
other appliances.
19.13 Addition:
NOTE 101 The test of 15.101 is carried out before the test of 16.3.
The temperature of the flexible part in contact with the thermal insulation shall not exceed
165 °C for controlled appliances and the temperature rise shall not exceed 150 K for other
appliances.
Unless the appliance is no longer in an operating condition after the tests, the temperature of
heating elements shall not exceed 160 °C for controlled appliances and the temperature
rise shall not exceed 145 K for other appliances.
19.101 Blankets, other than ruck-resistant blankets, incorporating thermostats or
thermal cut-outs are operated under normal operation except that the flexible part is
folded at the most unfavourable place with a thre
...
NORME CEI
INTERNATIONALE
IEC
60335-2-17
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2002-10
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-17:
Règles particulières pour les couvertures,
coussins et appareils chauffants souples
analogues
Household and similar electrical appliances –
Safety –
Part 2-17:
Particular requirements for blankets, pads
and similar flexible heating appliances
Numéro de référence
Reference number
CEI/IEC 60335-2-17:2002
Numérotation des publications Publication 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. Ainsi, la CEI 34-1 issued with a designation in the 60000 series. For
devient la CEI 60034-1. example, IEC 34-1 is now referred to as IEC 60034-1.
Editions consolidées Consolidated editions
Les versions consolidées de certaines publications de la The IEC is now publishing consolidated versions of its
CEI incorporant les amendements sont disponibles. Par publications. For example, edition numbers 1.0, 1.1
exemple, les numéros d’édition 1.0, 1.1 et 1.2 indiquent and 1.2 refer, respectively, to the base publication,
respectivement la publication de base, la publication de the base publication incorporating amendment 1 and
base incorporant l’amendement 1, et la publication de the base publication incorporating amendments 1
base incorporant les amendements 1 et 2. and 2.
Informations supplémentaires Further information on IEC publications
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nibles dans le Catalogue des publications de la CEI available in the IEC Catalogue of publications
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.
NORME CEI
INTERNATIONALE
IEC
60335-2-17
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2002-10
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-17:
Règles particulières pour les couvertures,
coussins et appareils chauffants souples
analogues
Household and similar electrical appliances –
Safety –
Part 2-17:
Particular requirements for blankets, pads
and similar flexible heating appliances
IEC 2002 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 any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
XA
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
– 2 – 60335-2-17 CEI:2005
SOMMAIRE
AVANT-PROPOS.6
INTRODUCTION.10
1 Domaine d'application .12
2 Références normatives.12
3 Définitions .14
4 Exigences générales .16
5 Conditions générales d'essais .18
6 Classification.20
7 Marquage et instructions .20
8 Protection contre l'accès aux parties actives .24
9 Démarrage des appareils à moteur.24
10 Puissance et courant .26
11 Echauffements .26
12 Vacant.30
13 Courant de fuite et rigidité diélectrique à la température de régime .30
14 Surtensions transitoires.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.34
19 Fonctionnement anormal .36
20 Stabilité et dangers mécaniques .42
21 Résistance mécanique .42
22 Construction .56
23 Conducteurs internes .60
24 Composants .60
25 Raccordement au réseau et câbles souples extérieurs .62
26 Bornes pour conducteurs externes .64
27 Dispositions en vue de la mise à la terre .64
28 Vis et connexions .64
29 Lignes de fuite, distances dans l'air et distances à travers l'isolation .64
30 Résistance à la chaleur et au feu.64
31 Protection contre la rouille.68
32 Rayonnement, toxicité et dangers analogues.68
Annexes .96
Annexe A (informative) Essais de série.96
Annexe AA (normative) Spécification pour l'isolant thermique .98
Annexe BB (normative) Appareillage pour l'essai de résistance mécanique des
couvertures.100
Bibliographie.106
60335-2-17 IEC:2005 – 3 –
CONTENTS
FOREWORD.7
INTRODUCTION.11
1 Scope.13
2 Normative references .13
3 Definitions .15
4 General requirement.17
5 General conditions for the tests .19
6 Classification.21
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 .27
11 Heating .27
12 Void.31
13 Leakage current and electric strength at operating temperature.31
14 Transient overvoltages .33
15 Moisture resistance .33
16 Leakage current and electric strength.35
17 Overload protection of transformers and associated circuits .35
18 Endurance.35
19 Abnormal operation .37
20 Stability and mechanical hazards .43
21 Mechanical strength .43
22 Construction .57
23 Internal wiring.61
24 Components .61
25 Supply connection and external flexible cords .63
26 Terminals for external conductors.65
27 Provision for earthing .65
28 Screws and connections .65
29 Clearances, creepage distances and solid insulation .65
30 Resistance to heat and fire.65
31 Resistance to rusting.69
32 Radiation, toxicity and similar hazards.69
Annexes .97
Annex A (informative) Routine tests .97
Annex AA (normative) Specification for the thermal insulation.99
Annex BB (normative) Equipment for the mechanical strength test for blankets .101
Bibliography.107
– 4 – 60335-2-17 CEI:2005
Figure 101 – Symbole pour «Ne pas utiliser plié ou froissé» .70
Figure 102 – Symbole pour «Ne pas insérer d'épingles».70
Figure 103 – Grille pour l'essai de choc thermique.72
Figure 104 – Dispositions pour la mesure du courant de fuite et de la rigidité
diélectrique de la partie souple .74
Figure 105 – Dispositions pour l'essai avec un pli de trois épaisseurs.76
Figure 106 – Différents positionnements de l'isolant thermique sur les parties souples
incorporant des thermostats.78
Figure 107 – Exemples de plis et positionnement de l'isolant thermique sur les
coussins .80
Figure 108 – Tambour tournant pour l’essai de résistance mécanique des coussins .82
Figure 109 – Dispositif d’impacts pour l'essai des enveloppes des appareils à l'épreuve
de l'humidité .84
Figure 110 – Forme de l'échantillon pour l'essai au déchirement.86
Figure 111 – Appareil de pliage des éléments chauffants et du câblage interne .88
Figure 112 – Dispositions pour l'essai de rigidité des couvertures résistant au froissage .90
Figure 113 – Appareil pour l'essai d'amorçage d'étincelles.92
Figure 113a – Détails du masque.94
Figure BB.1 – Appareil pour l'essai de résistance mécanique des couvertures.102
Figure BB.2 – Détail du tambour et des cylindres.104
Figure BB.3 – Détail de la barre de serrage .104
Tableau 101 – Températures maximales.28
Tableau 102 – Echauffements maximaux .28
Tableau A.101 – Tensions d’esai .96
60335-2-17 IEC:2005 – 5 –
Figure 101 – Symbol for "Do not use folded or rucked" .71
Figure 102 – Symbol for "Do not insert pins".71
Figure 103 – Grid for heatstroke test.73
Figure 104 – Arrangement for measuring leakage current and electric strength of the
flexible part.75
Figure 105 – Arrangement for the three-thickness fold test .77
Figure 106 – Different positions of the thermal insulation on flexible parts incorporating
thermostats.79
Figure 107 – Examples of folds and the position of the thermal insulation on pads .81
Figure 108 – Tumbling barrel for testing the mechanical strength of pads .83
Figure 109 – Impact apparatus for testing enclosures of moisture-proof appliances .85
Figure 110 – Shape of the sample for the tear resistance test.87
Figure 111 – Equipment for flexing heating elements and internal wiring .89
Figure 112 – Arrangement for the rigidity test of ruck-resistant blankets .91
Figure 113 – Equipment for the spark ignition test .93
Figure 113a – Details of the mask.95
Figure BB.1 – Equipment for the mechanical strength test of blankets .103
Figure BB.2 – Detail of the drum and cylinders .105
Figure BB.3 – Detail of the clamping bar.105
Table 101 – Maximum temperatures .29
Table 102 – Maximum temperature rises.29
Table A.101 – Test voltages .97
– 6 – 60335-2-17 CEI:2005
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
–––––––––––
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
SÉCURITÉ –
Partie 2-17: Règles particulières pour les couvertures,
coussins et appareils chauffants souples analogues
AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a
pour objet de favoriser la coopération internationale pour toutes les questions de normalisation dans les
domaines de l'électricité et de l'électronique. A cet effet, la CEI – entre autres activités – publie des Normes
internationales, des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au
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également aux travaux. La CEI collabore étroitement avec l'Organisation Internationale de Normalisation (ISO),
selon des conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de la CEI concernant les questions techniques représentent, dans la mesure
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La présente partie de la Norme internationale CEI 60335 a été établie par le comité
d’études 61 de la CEI: Sécurité des appareils électrodomestiques et analogues.
Cette deuxième édition annule et remplace la première édition parue en 1998 dont elle
constitue une révision technique.
Cette version bilingue (2005-10) remplace la version monolingue anglaise.
Le texte anglais de cette norme est issu des documents 61/2168/FDIS et 61/2249/RVD. Le
rapport de vote 61/2249/RVD donne toute information sur le vote ayant abouti à l’approbation
de cette norme.
60335-2-17 IEC:2005 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-17: Particular requirements for blankets, pads
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
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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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This part of International Standard IEC 60335 has been prepared by IEC technical committee
61: Safety of household and similar electrical appliances.
This second edition cancels and replaces the first edition published in 1998. It constitutes a
technical revision.
This bilingual version (2005-10) replaces the English version.
The text of this part of IEC 60335 is based on the following documents:
FDIS Report on voting
61/2168/FDIS 61/2249/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.
– 8 – 60335-2-17 CEI:2005
La version française de cette norme n’a pas été soumise au vote.
La présente partie 2 doit être utilisée conjointement avec la dernière édition de la CEI 60335-1 et
ses amendements. Elle a été établie sur la base de la quatrième édition (2001) de cette norme.
NOTE 1 L’expression «Partie 1» utilisée dans la présente norme fait référence à la CEI 60335-1.
La présente partie 2 complète ou modifie les articles correspondants de la CEI 60335-1 de
façon à transformer cette publication en norme CEI: Règles de sécurité pour les couvertures,
coussins et appareils chauffants souples analogues électriques.
NOTE 2 L’Annexe AA contient des dispositions provenant de la norme ISO 2439.
Lorsqu'un paragraphe particulier de la Partie 1 n'est pas mentionné dans cette partie 2,
ce paragraphe s'applique pour autant qu'il est raisonnable. Lorsque la présente norme
spécifie «addition», «modification» ou «remplacement», le texte correspondant de la Partie 1
doit être adapté en conséquence.
NOTE 3 Le système de numérotation suivant est utilisé:
– paragraphes, tableaux et figures: ceux qui sont numérotés à partir de 101 sont complémentaires à ceux de la
Partie 1;
– notes: à l’exception de celles qui sont dans un nouveau paragraphe ou de celles qui concernent des notes de
la Partie 1, les notes sont numérotées à partir de 101, y compris celles des articles ou paragraphes qui sont
modifiés ou remplacés;
– annexes: les annexes supplémentaires sont appelées AA, BB, etc.
NOTE 4 Les caractères d'imprimerie suivants sont utilisés:
– exigences: caractères romains;
– modalités d'essais: caractères italiques;
– notes: petits caractères romains.
Les mots en gras dans le texte sont définis à l'Article 3. Lorsqu'une définition concerne un adjectif, l'adjectif et le
nom associé figurent également en gras.
Les différences suivantes existent dans les pays indiqués ci-après.
– 6.1: Des produits de la classe 0 sont autorisés (Japon et USA).
– 19.108: Il n’est pas exigé que le fusible se rompe (Australie).
– 22.102: Les thermostats et les coupe-circuit thermiques ne sont pas autorisés dans les parties souples des
couvertures de dessous (Australie et Nouvelle Zélande).
– Annexe AA: Du feutre est utilisé pour l’isolation thermique (USA).
Le comité a décidé que le contenu de cette publication ne sera pas modifié avant la date de
maintenance indiquée sur le site web de la CEI sous «http://webstore.iec.ch» dans les
données relatives à la publication recherchée. A cette date, la publication sera
• reconduite;
• supprimée;
• remplacée par une édition révisée, ou
• amendée.
60335-2-17 IEC:2005 – 9 –
The French version of this standard has not been voted upon.
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 fourth edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for electric blankets, pads
and similar flexible heating appliances.
NOTE 2 Annex AA contains provisions from ISO 2439.
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 3 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
NOTE 4 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 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
The following differences exist in the countries indicated below.
– 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).
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
– 10 – 60335-2-17 CEI:2005
INTRODUCTION
Il a été considéré en établissant la présente Norme internationale que l'exécution de ses
dispositions était confiée à des personnes expérimentées et ayant une qualification
appropriée.
Cette norme reconnaît le niveau de protection internationalement accepté contre les risques
électriques, mécaniques, thermiques, liés au feu et au rayonnement des appareils, lorsqu'ils
fonctionnent comme en usage normal en tenant compte des instructions du fabricant. Elle
couvre également les situations anormales auxquelles on peut s'attendre dans la pratique.
Cette norme tient compte autant que possible des exigences de la CEI 60364, de façon à
rester compatible avec les règles d'installation quand l’appareil est raccordé au réseau
d’alimentation. Cependant, des règles nationales d'installation peuvent être différentes.
Si un appareil compris dans le domaine d’application de cette norme comporte également des
fonctions qui sont couvertes par une autre partie 2 de la CEI 60335, la partie 2
correspondante est appliquée à chaque fonction séparément, dans la limite du raisonnable. Si
cela est applicable, on tient compte de l’influence d’une fonction sur les autres fonctions.
Cette norme est une norme de famille de produits traitant de la sécurité d’appareils et a
préséance sur les normes horizontales et génériques couvrant le même sujet.
Un appareil conforme au texte de la présente norme ne sera pas nécessairement jugé
conforme aux principes de sécurité de la norme si, lorsqu'il est examiné et soumis aux essais,
il apparaît qu'il présente d'autres caractéristiques qui compromettent le niveau de sécurité
visé par ces exigences.
Un appareil utilisant des matériaux ou présentant des modes de construction différents de
ceux décrits dans les exigences de cette norme peut être examiné et essayé en fonction de
l'objectif poursuivi par ces exigences et, s'il est jugé pratiquement équivalent, il peut être
estimé conforme aux principes de sécurité de la norme.
60335-2-17 IEC:2005 – 11 –
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in
normal use taking into account the manufacturer's instructions. It also covers abnormal
situations that can be expected in practice.
This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply
mains. However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of
the requirements and, if found to be substantially equivalent, may be considered to comply
with the standard.
– 12 – 60335-2-17 CEI:2005
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
SÉCURITÉ –
Partie 2-17: Règles particulières pour les couvertures, coussins et
appareils chauffants souples analogues
1 Domaine d'application
L'article de la Partie 1 est remplacé par l’article ci-après.
La présente Norme internationale traite de la sécurité des couvertures, coussins et autres
appareils électriques souples, destinés à chauffer un lit ou le corps humain, pour usages
domestiques et analogues et dont la tension assignée n'est pas supérieure à 250 V.
Cette norme s'applique également aux unités de commande fournies avec l’appareil.
Dans la mesure du possible, la présente norme traite des risques ordinaires présentés par les
appareils, encourus par tous les individus à l'intérieur et autour de l'habitation. Cependant,
cette norme ne tient pas compte en général
– de l'utilisation des appareils par des jeunes enfants ou des personnes handicapées sans
surveillance;
– de l'emploi de l'appareil comme jouet par des jeunes enfants.
NOTE 101 On considère que les enfants sont assez âgés pour utiliser un appareil sans surveillance lorsque les
parents ou les personnes qui en ont la garde leur ont expliqué les instructions et qu'ils sont ainsi aptes à utiliser
l'appareil en toute sécurité.
NOTE 102 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'avions, 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 et par des organismes
similaires.
NOTE 103 La présente norme ne s'applique pas
– aux appareils destinés à être utilisés dans des locaux présentant des conditions particulières, telles que la
présence d'une atmosphère corrosive ou explosive (poussière, vapeur ou gaz);
– aux dispositifs de chauffage rigides des lits, tels que ceux en métal ou en céramique;
– aux dispositifs de chauffage pour matelas à eau (CEI 60335-2-66);
– aux appareils de chauffage destinés à la reproduction et à l'élevage des animaux (CEI 60335-2-71);
– aux chancelières et carpettes chauffantes (CEI 60335-2-81);
– aux appareils spécifiquement destinés à être utilisés sous surveillance médicale (CEI 60601-2-35).
2 Références normatives
L'article de la Partie 1 est applicable avec les exceptions suivantes.
Addition:
ISO 2439, Matériaux polymères alvéolaires souples – Détermination de la dureté (technique
par indentation)
ISO 3758, Textiles – Code d'étiquetage d'entretien au moyen de symboles
60335-2-17 IEC:2005 – 13 –
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-17: Particular requirements for blankets, pads
and similar flexible heating appliances
1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of electric blankets, pads and other flexible
appliances that heat the bed or human body, for household and similar purposes, their rated
voltage being not more than 250 V.
This standard also applies to control units supplied with the appliance.
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
– the use of appliances by young children or infirm persons without supervision;
– playing with the appliance by young children.
NOTE 101 Children are considered to be old enough to use an appliance without supervision when they have
been adequately instructed by a parent or guardian and are deemed competent to use the appliance safely.
NOTE 102 Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be
necessary;
– in many countries, additional requirements are specified by the national health authorities, the national
authorities responsible for the protection of labour and similar authorities.
NOTE 103 This standard does not apply to
– 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);
– rigid bed warmers, such as those of metal or ceramic material;
– water bed heaters (IEC 60335-2-66);
– heating appliances for breeding and rearing animals (IEC 60335-2-71);
– foot warmers and heating mats (IEC 60335-2-81);
– appliances specifically intended for use under medical supervision (IEC 60601-2-35).
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
ISO 2439, Flexible cellular polymeric materials – Determination of hardness (indentation
technique)
ISO 3758, Textiles – Care labelling code using symbols
– 14 – 60335-2-17 CEI:2005
3 Définitions
L'article de la Partie 1 est applicable avec les exceptions suivantes.
3.1.9 Remplacement:
conditions de fonctionnement normal
fonctionnement de l’appareil dans les conditions suivantes
Les couvertures et les coussins sont placés entre deux feuilles d'isolant thermique.
Les couettes sont placées sur une feuille d'isolant thermique mais ne sont pas recouvertes.
Les matelas sont recouverts d'une feuille d'isolant thermique.
NOTE 101 Les spécifications concernant l'isolant thermique sont données à l'Annexe AA.
La partie souple est supportée par une planche de contreplaqué de 20 mm d'épaisseur,
placée à 300 mm au moins au-dessus du sol. Les dimensions de la planche de contreplaqué
sont telles que l'isolant thermique puisse être complètement supporté sur toute sa surface.
Les dimensions des feuilles d'isolan
...
IEC 60335-2-17
Edition 2.1 2006-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-17: Particular requirements for blankets, pads and similar flexible heating
appliances
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-17: Règles particulières pour les couvertures, coussins et appareils
chauffants souples analogues
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IEC 60335-2-17
Edition 2.1 2006-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-17: Particular requirements for blankets, pads and similar flexible heating
appliances
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-17: Règles particulières pour les couvertures, coussins et appareils
chauffants souples analogues
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CQ
CODE PRIX
ICS 13.120; 97.040.50 ISBN 2-8318-8535-3
– 2 – 60335-2-17 CEI:2002+A1:2006
SOMMAIRE
AVANT-PROPOS.6
INTRODUCTION.10
1 Domaine d'application .12
2 Références normatives.12
3 Définitions .14
4 Exigences générales .18
5 Conditions générales d'essais .18
6 Classification.20
7 Marquage et instructions .20
8 Protection contre l'accès aux parties actives .26
9 Démarrage des appareils à moteur.26
10 Puissance et courant .26
11 Echauffements .26
12 Vacant.32
13 Courant de fuite et rigidité diélectrique à la température de régime .32
14 Surtensions transitoires.32
15 Résistance à l'humidité.32
16 Courant de fuite et rigidité diélectrique .36
17 Protection contre la surcharge des transformateurs et des circuits associés.36
18 Endurance.38
19 Fonctionnement anormal .38
20 Stabilité et dangers mécaniques .44
21 Résistance mécanique .46
22 Construction .60
23 Conducteurs internes .64
24 Composants .64
25 Raccordement au réseau et câbles souples extérieurs .66
26 Bornes pour conducteurs externes .68
27 Dispositions en vue de la mise à la terre .68
28 Vis et connexions .68
29 Lignes de fuite, distances dans l'air et distances à travers l'isolation .68
30 Résistance à la chaleur et au feu.70
31 Protection contre la rouille.74
32 Rayonnement, toxicité et dangers analogues.74
Annexes .100
Annexe A (informative) Essais de série.100
Annexe AA (normative) Spécification pour l'isolant thermique .102
Annexe BB (normative) Appareillage pour l'essai de résistance mécanique des
couvertures.104
Bibliographie.110
60335-2-17 IEC:2002+A1:2006 – 3 –
CONTENTS
FOREWORD.7
INTRODUCTION.11
1 Scope.13
2 Normative references .13
3 Definitions .15
4 General requirement.19
5 General conditions for the tests .19
6 Classification.21
7 Marking and instructions.21
8 Protection against access to live parts.27
9 Starting of motor-operated appliances .27
10 Power input and current .27
11 Heating .27
12 Void.33
13 Leakage current and electric strength at operating temperature.33
14 Transient overvoltages .33
15 Moisture resistance .33
16 Leakage current and electric strength.37
17 Overload protection of transformers and associated circuits .37
18 Endurance.39
19 Abnormal operation .39
20 Stability and mechanical hazards .45
21 Mechanical strength .47
22 Construction .61
23 Internal wiring.65
24 Components .65
25 Supply connection and external flexible cords .67
26 Terminals for external conductors.69
27 Provision for earthing .69
28 Screws and connections .69
29 Clearances, creepage distances and solid insulation .69
30 Resistance to heat and fire.71
31 Resistance to rusting.75
32 Radiation, toxicity and similar hazards.75
Annexes .101
Annex A (informative) Routine tests .101
Annex AA (normative) Specification for the thermal insulation.103
Annex BB (normative) Equipment for the mechanical strength test for blankets .105
Bibliography.111
– 4 – 60335-2-17 CEI:2002+A1:2006
Figure 101 – Symbole pour «Ne pas utiliser plié ou froissé» .76
Figure 102 – Symbole pour «Ne pas insérer d'épingles».76
Figure 103 – Vacant .76
Figure 104 – Dispositions pour la mesure du courant de fuite et de la rigidité
diélectrique de la partie souple .78
Figure 105 – Dispositions pour l'essai avec un pli de trois épaisseurs.80
Figure 106 – Exemples montrant la position de l'isolant thermique sur les couvertures
résistant au froissement et les matelas .82
Figure 107 – Exemples de plis et positionnement de l'isolant thermique
sur les coussins .84
Figure 108 – Tambour tournant pour l’essai de résistance mécanique des coussins .86
Figure 109 – Dispositif d’impacts pour l'essai des enveloppes des appareils à l'épreuve
de l'humidité .88
Figure 110 – Forme de l'échantillon pour l'essai au déchirement.90
Figure 111 – Appareil de pliage des éléments chauffants et du câblage interne .92
Figure 112 – Dispositions pour l'essai de rigidité des couvertures résistant au froissage .94
Figure 113 – Appareil pour l'essai d'amorçage d'étincelles.96
Figure 113a – Détails du masque.98
Figure BB.1 – Appareil pour l'essai de résistance mécanique des couvertures.106
Figure BB.2 – Détail du tambour et des cylindres.108
Figure BB.3 – Détail de la barre de serrage .108
Tableau 101 – Températures maximales.28
Tableau 102 – Echauffements maximaux .30
Tableau A.101 – Tensions d’esai .100
60335-2-17 IEC:2002+A1:2006 – 5 –
Figure 101 – Symbol for "Do not use folded or rucked" .77
Figure 102 – Symbol for "Do not insert pins".77
Figure 103 – Void .77
Figure 104 – Arrangement for measuring leakage current and electric strength
of the flexible part .79
Figure 105 – Arrangement for the three-thickness fold test .81
Figure 106 – Examples showing the position of the thermal insulation
on ruck-resistant blankets and mattresses .83
Figure 107 – Examples of folds and the position of the thermal insulation on pads .85
Figure 108 – Tumbling barrel for testing the mechanical strength of pads .87
Figure 109 – Impact apparatus for testing enclosures of moisture-proof appliances .89
Figure 110 – Shape of the sample for the tear resistance test.91
Figure 111 – Equipment for flexing heating elements and internal wiring .93
Figure 112 – Arrangement for the rigidity test of ruck-resistant blankets .95
Figure 113 – Equipment for the spark ignition test .97
Figure 113a – Details of the mask.99
Figure BB.1 – Equipment for the mechanical strength test of blankets .107
Figure BB.2 – Detail of the drum and cylinders .109
Figure BB.3 – Detail of the clamping bar.109
Table 101 – Maximum temperatures .29
Table 102 – Maximum temperature rises.31
Table A.101 – Test voltages .101
– 6 – 60335-2-17 © CEI:2002+A1:2006
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
–––––––––––
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
SÉCURITÉ –
Partie 2-17: Règles particulières pour les couvertures,
coussins et appareils chauffants souples analogues
AVANT-PROPOS
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La présente partie de la Norme internationale CEI 60335 a été établie par le comité
d’études 61 de la CEI: Sécurité des appareils électrodomestiques et analogues.
La présente version consolidée de la CEI 60335-2-17 comprend la deuxième édition (2002)
[documents 61/2168/FDIS et 61/2249/RVD] et son amendement 1 (2006) [documents
61/2956/FDIS et 61/2986/RVD].
Le contenu technique de cette version consolidée est donc identique à celui de l'édition de
base et à son amendement; cette version a été préparée par commodité pour l'utilisateur.
Elle porte le numéro d'édition 2.1.
Une ligne verticale dans la marge indique où la publication de base a été modifiée par
l'amendement 1.
La version française de cette norme n’a pas été soumise au vote.
60335-2-17 © IEC:2002+A1:2006 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-17: Particular requirements for blankets, pads
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 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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This part of International Standard IEC 60335 has been prepared by IEC technical committee 61:
Safety of household and similar electrical appliances.
This consolidated version of IEC 60335-2-17 consists of the second edition (2002)
[documents 61/2168/FDIS and 61/2249/RVD] and its amendment 1 (2006) [documents
61/2956/FDIS and 61/2986/RVD].
The technical content is therefore identical to the base edition and its amendment and has
been prepared for user convenience.
It bears the edition number 2.1.
A vertical line in the margin shows where the base publication has been modified by
amendment 1.
The French version of this standard has not been voted upon.
– 8 – 60335-2-17 CEI:2002+A1:2006
La présente partie 2 doit être utilisée conjointement avec la dernière édition de la CEI 60335-1 et
ses amendements. Elle a été établie sur la base de la quatrième édition (2001) de cette norme.
NOTE 1 L’expression «Partie 1» utilisée dans la présente norme fait référence à la CEI 60335-1.
La présente partie 2 complète ou modifie les articles correspondants de la CEI 60335-1 de
façon à transformer cette publication en norme CEI: Règles de sécurité pour les couvertures,
coussins et appareils chauffants souples analogues électriques.
NOTE 2 L’Annexe AA contient des dispositions provenant de la norme ISO 2439.
Lorsqu'un paragraphe particulier de la Partie 1 n'est pas mentionné dans cette partie 2,
ce paragraphe s'applique pour autant qu'il est raisonnable. Lorsque la présente norme
spécifie «addition», «modification» ou «remplacement», le texte correspondant de la Partie 1
doit être adapté en conséquence.
NOTE 3 Le système de numérotation suivant est utilisé:
– paragraphes, tableaux et figures: ceux qui sont numérotés à partir de 101 sont complémentaires à ceux de la
Partie 1;
– notes: à l’exception de celles qui sont dans un nouveau paragraphe ou de celles qui concernent des notes de
la Partie 1, les notes sont numérotées à partir de 101, y compris celles des articles ou paragraphes qui sont
modifiés ou remplacés;
– annexes: les annexes supplémentaires sont appelées AA, BB, etc.
NOTE 4 Les caractères d'imprimerie suivants sont utilisés:
– exigences: caractères romains;
– modalités d'essais: caractères italiques;
– notes: petits caractères romains.
Les mots en gras dans le texte sont définis à l'Article 3. Lorsqu'une définition concerne un adjectif, l'adjectif et le
nom associé figurent également en gras.
Les différences suivantes existent dans les pays indiqués ci-après.
– 6.1: Des produits de la classe 0 sont autorisés (Japon et USA).
– 19.108: Il n’est pas exigé que le fusible se rompe (Australie).
– 22.102: Les thermostats et les coupe-circuit thermiques ne sont pas autorisés dans les parties souples des
couvertures de dessous (Australie et Nouvelle Zélande).
– Annexe AA: Du feutre est utilisé pour l’isolation thermique (USA).
Le comité a décidé que le contenu de la publication de base et de ses amendements ne sera
pas modifié avant la date de maintenance indiquée sur le site web de la CEI sous
"http://webstore.iec.ch" dans les données relatives à la publication recherchée. A cette date,
la publication sera
• reconduite,
• supprimée,
• remplacée par une édition révisée, ou
• amendée.
60335-2-17 IEC:2002+A1:2006 – 9 –
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 fourth edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for electric blankets, pads
and similar flexible heating appliances.
NOTE 2 Annex AA contains provisions from ISO 2439.
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 3 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
NOTE 4 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 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
The following differences exist in the countries indicated below.
– 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).
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date,
the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 10 – 60335-2-17 CEI:2002+A1:2006
INTRODUCTION
Il a été considéré en établissant la présente Norme internationale que l'exécution de ses
dispositions était confiée à des personnes expérimentées et ayant une qualification
appropriée.
Cette norme reconnaît le niveau de protection internationalement accepté contre les risques
électriques, mécaniques, thermiques, liés au feu et au rayonnement des appareils, lorsqu'ils
fonctionnent comme en usage normal en tenant compte des instructions du fabricant. Elle
couvre également les situations anormales auxquelles on peut s'attendre dans la pratique et
prend en considération les phénomènes électromagnétiques qui peuvent affecter le
fonctionnement en toute sécurité des appareils.
Cette norme tient compte autant que possible des exigences de la CEI 60364, de façon à
rester compatible avec les règles d'installation quand l’appareil est raccordé au réseau
d’alimentation. Cependant, des règles nationales d'installation peuvent être différentes.
Si un appareil compris dans le domaine d’application de cette norme comporte également des
fonctions qui sont couvertes par une autre partie 2 de la CEI 60335, la partie 2
correspondante est appliquée à chaque fonction séparément, dans la limite du raisonnable. Si
cela est applicable, on tient compte de l’influence d’une fonction sur les autres fonctions.
Cette norme est une norme de famille de produits traitant de la sécurité d’appareils et a
préséance sur les normes horizontales et génériques couvrant le même sujet.
Un appareil conforme au texte de la présente norme ne sera pas nécessairement jugé
conforme aux principes de sécurité de la norme si, lorsqu'il est examiné et soumis aux essais,
il apparaît qu'il présente d'autres caractéristiques qui compromettent le niveau de sécurité
visé par ces exigences.
Un appareil utilisant des matériaux ou présentant des modes de construction différents de
ceux décrits dans les exigences de cette norme peut être examiné et essayé en fonction de
l'objectif poursuivi par ces exigences et, s'il est jugé pratiquement équivalent, il peut être
estimé conforme aux principes de sécurité de la norme.
60335-2-17 IEC:2002+A1:2006 – 11 –
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in
normal use taking into account the manufacturer's instructions. It also covers abnormal
situations that can be expected in practice and takes into account the way in which
electromagnetic phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply
mains. However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of
the requirements and, if found to be substantially equivalent, may be considered to comply
with the standard.
– 12 – 60335-2-17 CEI:2002+A1:2006
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
SÉCURITÉ –
Partie 2-17: Règles particulières pour les couvertures, coussins et
appareils chauffants souples analogues
1 Domaine d'application
L'article de la Partie 1 est remplacé par l’article ci-après.
La présente Norme internationale traite de la sécurité des couvertures, coussins et autres
appareils électriques souples, destinés à chauffer un lit ou le corps humain, pour usages
domestiques et analogues et dont la tension assignée n'est pas supérieure à 250 V.
Cette norme s'applique également aux unités de commande fournies avec l’appareil.
Dans la mesure du possible, la présente norme traite des risques ordinaires présentés par les
appareils, encourus par tous les individus à l'intérieur et autour de l'habitation. Cependant,
cette norme ne tient pas compte en général
– de l'utilisation des appareils par des jeunes enfants ou des personnes handicapées sans
surveillance;
– de l'emploi de l'appareil comme jouet par des jeunes enfants.
NOTE 101 On considère que les enfants sont assez âgés pour utiliser un appareil sans surveillance lorsque les
parents ou les personnes qui en ont la garde leur ont expliqué les instructions et qu'ils sont ainsi aptes à utiliser
l'appareil en toute sécurité.
NOTE 102 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'avions, 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 et par des organismes
similaires.
NOTE 103 La présente norme ne s'applique pas
– aux appareils destinés à être utilisés dans des locaux présentant des conditions particulières, telles que la
présence d'une atmosphère corrosive ou explosive (poussière, vapeur ou gaz);
– aux dispositifs de chauffage rigides des lits, tels que ceux en métal ou en céramique;
– aux dispositifs de chauffage pour matelas à eau (CEI 60335-2-66);
– aux appareils de chauffage destinés à la reproduction et à l'élevage des animaux (CEI 60335-2-71);
– aux chancelières et carpettes chauffantes (CEI 60335-2-81);
– aux appareils spécifiquement destinés à être utilisés sous surveillance médicale (CEI 60601-2-35).
2 Références normatives
L'article de la Partie 1 est applicable avec les exceptions suivantes.
Addition:
ISO 2439, Matériaux polymères alvéolaires souples – Détermination de la dureté (technique
par indentation)
ISO 3758, Textiles – Code d'étiquetage d'entretien au moyen de symboles
60335-2-17 IEC:2002+A1:2006 – 13 –
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-17: Particular requirements for blankets, pads
and similar flexible heating appliances
1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of electric blankets, pads and other flexible
appliances that heat the bed or human body, for household and similar purposes, their rated
voltage being not more than 250 V.
This standard also applies to control units supplied with the appliance.
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
– the use of appliances by young children or infirm persons without supervision;
– playing with the appliance by young children.
NOTE 101 Children are considered to be old enough to use an appliance without supervision when they have
been adequately instructed by a parent or guardian and are deemed competent to use the appliance safely.
NOTE 102 Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be
necessary;
– in many countries, additional requirements are specified by the national health authorities, the national
authorities responsible for the protection of labour and similar authorities.
NOTE 103 This standard does not apply to
– 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);
– rigid bed warmers, such as those of metal or ceramic material;
– water bed heaters (IEC 60335-2-66);
– heating appliances for breeding and rearing animals (IEC 60335-2-71);
– foot warmers and heating mats (IEC 60335-2-81);
– appliances specifically intended for use under medical supervision (IEC 60601-2-35).
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
ISO 2439, Flexible cellular polymeric materials – Determination of hardness (indentation
technique)
ISO 3758, Textiles – Care labelling code using symbols
– 14 – 60335-2-17 CEI:2002+A1:2006
3 Définitions
L'article de la Partie 1 est applicable avec les exceptions suivantes.
3.1.9 Remplacement:
conditions de fonctionnement normal
fonctionnement de l’appareil dans les conditions suivantes
Les couvertures et les coussins sont placés entre deux feuilles d'isolant thermique.
Les couettes sont placées sur une feuille d'isolant thermique mais ne sont pas recouvertes.
Les matelas sont recouverts d'une feuille d'isolant thermique.
NOTE 101 Les spécifications concernant l'isolant thermique sont données à l'Annexe AA.
La partie souple est supportée par une planche de contreplaqué de 20 mm d'épaisseur,
placée à 300 mm au moins au-dessus du sol. Les dimensions de la planche de contreplaqué
sont telles que l'isolant thermique puisse être complètement
...
IEC 60335-2-17 ®
Edition 2.2 2009-10
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: Règles particulières pour les couvertures, coussins, vêtements et
appareils chauffants souples analogues
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IEC 60335-2-17 ®
Edition 2.2 2009-10
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: Règles particulières pour les couvertures, coussins, vêtements et
appareils chauffants souples analogues
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CR
CODE PRIX
ICS 13.120, 97.040.50 ISBN 978-2-88910-142-9
– 2 – 60335-2-17 © IEC:2002:+A1:2006
+A2:2008
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .8
3 Definitions .8
4 General requirement.10
5 General conditions for the tests .10
6 Classification.11
7 Marking and instructions.12
8 Protection against access to live parts.14
9 Starting of motor-operated appliances .14
10 Power input and current .14
11 Heating .15
12 Void.17
13 Leakage current and electric strength at operating temperature.17
14 Transient overvoltages .18
15 Moisture resistance .18
16 Leakage current and electric strength.19
17 Overload protection of transformers and associated circuits .20
18 Endurance.20
19 Abnormal operation .20
20 Stability and mechanical hazards .24
21 Mechanical strength .24
22 Construction .30
23 Internal wiring.33
24 Components .33
25 Supply connection and external flexible cords .33
26 Terminals for external conductors.34
27 Provision for earthing .34
28 Screws and connections .34
29 Clearances, creepage distances and solid insulation .35
30 Resistance to heat and fire.35
31 Resistance to rusting.37
32 Radiation, toxicity and similar hazards.37
Annexes .50
Annex A (informative) Routine tests .50
Annex AA (normative) Specification for the thermal insulation.51
Annex BB (normative) Equipment for the mechanical strength test for blankets .52
Annex CC (normative) Clothing.55
60335-2-17 © IEC:2002+A1:2006 – 3 –
+A2:2008
Bibliography.58
Figure 101 – Symbol for "Do not use folded or rucked" .38
Figure 102 – Symbol for "Do not insert pins".38
Figure 103 – Void .38
Figure 104 – Arrangement for measuring leakage current and electric strength
of the flexible part .39
Figure 105 – Arrangement for the three-thickness fold test .40
Figure 106 – Examples showing the position of the thermal insulation
on ruck-resistant blankets and mattresses .41
Figure 107 – Examples of folds and the position of the thermal insulation on pads .42
Figure 108 – Tumbling barrel for testing the mechanical strength of pads .43
Figure 109 – Impact apparatus for testing enclosures of moisture-proof appliances .44
Figure 110 – Shape of the sample for the tear resistance test.45
Figure 111 – Equipment for flexing heating elements and internal wiring .46
Figure 112 – Arrangement for the rigidity test of ruck-resistant blankets .47
Figure 113 – Equipment for the spark ignition test .48
Figure 113a – Details of the mask.49
Figure BB.1 – Equipment for the mechanical strength test of blankets .53
Figure BB.2 – Detail of the drum and cylinders .54
Figure BB.3 – Detail of the clamping bar.54
Table 101 – Maximum temperatures .16
Table 102 – Maximum temperature rises.16
Table A.101 – Test voltages .50
– 4 – 60335-2-17 © IEC:2002:+A1:2006
+A2:2008
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 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
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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) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This part of International Standard IEC 60335 has been prepared by IEC technical committee 61:
Safety of household and similar electrical appliances.
This consolidated version of IEC 60335-2-17 consists of the second edition (2002)
[documents 61/2168/FDIS and 61/2249/RVD], its amendment 1 (2006) [documents
61/2956/FDIS and 61/2986/RVD] and its amendment 2 (2008) [documents 61/3562/FDIS and
61/3638/RVD].
The technical content is therefore identical to the base edition and its amendments and has
been prepared for user convenience.
It bears the edition number 2.2.
A vertical line in the margin shows where the base publication has been modified by
amendments 1 and 2.
60335-2-17 © IEC:2002+A1:2006 – 5 –
+A2:2008
The French version of this standard has not been voted upon.
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 fourth edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for electric blankets, pads
and similar flexible heating appliances.
NOTE 2 Annex AA contains provisions from ISO 2439.
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 3 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
NOTE 4 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 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
The following differences exist in the countries indicated below.
– 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).
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date,
the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of the amendment 2 be adopted for implementation
nationally not earlier than 12 months or later than 36 months from the date of publication.
– 6 – 60335-2-17 © IEC:2002:+A1:2006
+A2:2008
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in
normal use taking into account the manufacturer's instructions. It also covers abnormal
situations that can be expected in practice and takes into account the way in which
electromagnetic phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply
mains. However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
2 When a part 2 standard does not include additional requirements to cover hazards dealt with
in Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal and generic standards covering a hazard are not applicable, since they have been taken into
consideration when developing the general and particular requirements for the IEC 60335 series of standards. For
example, in the case of temperature requirements for surfaces on many appliances, generic standards, such as
ISO 13732-1 for hot surfaces, are not applicable in addition to Part 1 or part 2 standards.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of
the requirements and, if found to be substantially equivalent, may be considered to comply
with the standard.
60335-2-17 © IEC:2002+A1:2006 – 7 –
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HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –
Part 2-17: Particular requirements for blankets, pads,
clothing and similar flexible heating appliances
1 Scope
This clause of Part 1 is replaced by the following.
2 This International Standard deals with the safety of electric blankets, pads, clothing and
other flexible appliances that heat the bed or human body, for household and similar
purposes, their rated voltage being not more than 250 V.
This standard also applies to control units supplied with the appliance.
Appliances not intended for normal household use but which nevertheless may be a source of
danger to the public, such as appliances intended to be used in beauty parlours or by persons
in cold ambient temperatures, are within the scope of this standard.
Requirements and tests for clothing are given in Annex CC.
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.
NOTE 101 Children are considered to be old enough to use an appliance without supervision when they have
been adequately instructed by a parent or guardian and are deemed competent to use the appliance safely.
NOTE 102 Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be
necessary;
– in many countries, additional requirements are specified by the national health authorities, the national
authorities responsible for the protection of labour and similar authorities.
NOTE 103 This standard does not apply to
– 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);
– rigid bed warmers, such as those of metal or ceramic material;
– water bed heaters (IEC 60335-2-66);
– heating appliances for breeding and rearing animals (IEC 60335-2-71);
– foot warmers and heating mats (IEC 60335-2-81);
– appliances specifically intended for use under medical supervision (IEC 60601-2-35).
– 8 – 60335-2-17 © IEC:2002:+A1:2006
+A2:2008
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
ISO 2439, Flexible cellular polymeric materials – Determination of hardness (indentation
technique)
2 ISO 3758:2005, Textiles – Care labelling code using symbols
3 Definitions
This clause of Part 1 is applicable except as follows.
3.1.9 Replacement:
normal operation
operation of the appliance under the following conditions
Blankets and pads are placed between sheets of thermal insulation.
Duvets are placed on a sheet of thermal insulation but not covered.
Mattresses are covered by a sheet of thermal insulation.
NOTE 101 The specification for the thermal insulation is given in Annex AA.
The flexible part is supported on a plywood base 20 mm thick and positioned not less than
300 mm above the floor. The size of the plywood base is such that the thermal insulation can
be fully supported over its entire area. The size of the sheets of thermal insulation is such that
the edges extend at least 100 mm beyond the outline of the heated area.
Control units held in the hand when they are actuated and cord switches are positioned to
hang away from the plywood base. Other control units are placed on a supporting surface
away from the plywood base.
3.8.4 Replacement
PTC heating element
heating element consisting of two conductors separated by conductive material that has a
rapid non-linear increase in resistance when the temperature is raised through a particular
range
3.101
flexible part
all layers of material forming the permanent enclosure of the appliance together with the
heating element, thermostats and all other current-carrying parts contained within it
NOTE The flexible part may be inside a detachable cover.
3.102
blanket
appliance comprising a substantially flat flexible part that is intended to form part of the
bedding, for heating the bed
60335-2-17 © IEC:2002+A1:2006 – 9 –
+A2:2008
3.103
underblanket
blanket intended to be used under the occupant of the bed
3.104
ruck-resistant blanket
underblanket that has sufficient rigidity to prevent rucking of the flexible part
3.105
overblanket
blanket intended to be used over the occupant of the bed
3.106
duvet
quilted overblanket intended to be used without additional bedding over the occupant of the
bed, the heating element providing supplementary heat
3.107
pad
appliance comprising a flexible part having a heated area not exceeding 0,3 m on each face
and which is intended to heat part of the human body
3.108
mattress
appliance for supporting the bedding and which incorporates an upholstered flexible part for
heating the bed
3.109
controlled appliance
appliance incorporating means in the flexible part for sensing changes in temperature when
the appliance is operated under normal operation, thus automatically controlling the average
power input
3.110
heating element
heating conductor, including the core on which it is wound and the insulation, together with
any other integrated conductor
3.111
heated area
area of the flexible part enclosed within the outer perimeter of the heating element or
electro-conductive textile. It includes a margin outside the perimeter that has a width equal
to 0,5 times the average distance between adjacent runs of the heating element.
NOTE 1 The heated area includes the return length of the heating element if the average distance between this
part and the adjacent heating element does not exceed the average distance between adjacent runs of the
heating element.
NOTE 2 If a blanket or mattress has two separate heated areas, the surface between the two areas is
considered to be part of the heated areas, if at any place the distance between the two heating elements does
not exceed 1,5 times the average distance between adjacent runs of the heating element.
3.112
moisture-proof appliance
appliance having a flexible part that is suitable for use under moist conditions
3.113
bonded enclosure
enclosure of the flexible part that has the opposite faces joined together by means of an
adhesive or by welding
NOTE The bonded enclosure may include several bonded layers of material.
– 10 – 60335-2-17 © IEC:2002:+A1:2006
+A2:2008
3.114
control unit
device, external to the flexible part, by means of which the average power input of the
appliance can be adjusted or regulated
NOTE 1 Control units may be incorporated in the supply cord or at the end of an interconnection cord.
NOTE 2 Multi-position cord switches are not considered to be control units unless they incorporate components
for regulating the power input.
3.115
wrap
appliance comprising a flexible part intended to be draped over the human body in order to
keep it warm
3.116
electro-conductive textile
textile incorporating carbon or other conductive material for the purpose of providing a
uniformly heated surface
4 General requirement
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.2 Modification:
The tests are carried out on two appliances, identified as appliance A and appliance B.
Addition:
For appliances having a bonded enclosure, additional appliances are required for the tests
of 21.108 and 21.111. For other appliances, a length of 15 m of heating element is required
for the tests of 21.111.
For moisture-proof pads subjected to the tests of 21.110, five additional appliances and
1 m of enclosure material are required.
If heat-shrink material is used to insulate connections in the flexible part, a sample at least
150 mm in length is required for the test of 30.102.
NOTE 101 An additional appliance may be required for the test of 19.112.
NOTE 102 If a further appliance is required in order to continue testing after a test of Clause 19, it has to be
adequately preconditioned taking into account 21.102 to 21.107.
NOTE 103 Additional samples of pads may be required for the test of 30.101.
5.3 Replacement:
The order in which the tests are carried out is as follows:
Appliance A: 7, 22.11, 8, 22.112, 10, 21.102 to 21.107, 22.108, 13, 15, 16, 17, 20, 25.15,
25.16, 19 (except 19.111), 21.108, 22.18, 30, 31 and 32.
60335-2-17 © IEC:2002+A1:2006 – 11 –
+A2:2008
Appliance B: 10, 11, 19.111, 21 (remainder), 22 (remainder), 23, 24, 25 (remainder), 26, 27,
28, 29 and 14.
NOTE 101 Duvets are tested as overblankets.
The flexible part of washable appliances is laundered twice in accordance with the
instructions before testing is started.
If it is evident from the construction of the appliance that a particular test is not applicable, the
test is not carried out.
5.5 Addition:
If the flexible part of the appliance is provided with a detachable cover, the tests are carried
out with or without this cover, whichever is more unfavourable. However, duvets are tested
without a detachable cover.
If the heating element can move in the channels, it is manipulated so that the individual runs
are placed in the most unfavourable position.
5.6 Addition:
When testing appliances for d.c. only, the possible influence of polarity on the operation of the
appliance is taken into account.
5.7 Modification:
For flexible parts incorporating PTC heating elements, the tests of Clauses 10, 11 and 19
are carried out at the most unfavourable ambient temperature within the range of 0 °C to
25 °C.
For other controlled blankets and mattresses, the tests of Clauses 10, 11 and 19 are
carried out at the most unfavourable ambient temperature within the range of 0 °C to 15 °C.
5.8.1 Addition:
Appliances for d.c. only are tested with d.c.
5.8.2 Addition:
Controlled appliances are supplied as specified for motor-operated appliances.
NOTE Appliances incorporating PTC heating elements within the flexible part are considered to be controlled
appliances.
5.12 Modification:
In the note, replace “25 %” by “10 %”.
5.101 Wraps are tested as overblankets.
6 Classification
This clause of Part 1 is applicable except as follows.
– 12 – 60335-2-17 © IEC:2002:+A1:2006
+A2:2008
6.1 Modification:
Appliances shall be class I, class II or class III. Class III appliances shall have a rated
voltage not exceeding 24 V.
2 NOTE 101 Class I appliances are only provided with an earth for functional purposes.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Modification:
Appliances shall be marked with the rated power input.
Parts of class III construction shall not be marked with the rated voltage of the appliance.
Addition:
Flexible parts and detachable covers shall be marked with the name, trademark or
identification mark of the manufacturer or responsible vendor.
Detachable covers shall be marked with the model or type reference of the appliance with
which they are intended to be used.
The flexible part of appliances to be used with a detachable control unit shall be marked
with the reference of the control unit to be used.
The flexible part of appliances to be used with a detachable transformer shall be marked
with the reference of the transformer to be used.
Flexible parts and detachable covers shall be marked with the substance of the following:
– read the instructions or symbol ISO 7000-0790;
– do not use folded or rucked, or by the symbol of Figure 101 (only for underblankets other
than those with PTC heating elements);
– do not insert pins or by the symbol shown in Figure 102;
– underblanket or overblanket, as appropriate;
– intended orientation of blankets and mattresses (this marking is not required if the
appliance complies with 11.101, whichever way it is placed on the bed);
– do not use if wet (this marking is not required for moisture-proof appliances or class III
appliances);
– do not use with a helpless person, an infant or a person insensitive to heat;
The flexible part of blankets and detachable covers shall be marked with the appropriate
laundering symbols specified in ISO 3758. Washable appliances fitted with a non-detachable
flexible cord shall be marked with the “hand wash” symbol specified in Table 1 of ISO 3758.
Non-washable appliances shall be marked with the “do not wash” symbol in Table 1 of ISO
3758.
60335-2-17 © IEC:2002+A1:2006 – 13 –
+A2:2008
7.6 Addition:
[symbol IEC 60417-5017 (2006-08)] earth
[symbol from Table 1 of ISO 3758] hand wash
[symbol from Table 1 of ISO 3758] do not wash
7.12 Addition:
The instructions shall contain the substance of the following:
Important instructions. Retain for future use.
The instructions shall contain the substance of the instructions required in 7.1. If symbols are
used, they shall be explained.
The instructions for underblankets, other than blankets having a ruck-resistance greater
than 1,2 as determined in 22.106, shall state how the blanket is to be secured to the bed.
The instructions shall specify the appropriate settings of controls for continuous use of the
appliance.
The instructions for pads shall state that when the appliance is likely to be used for an
extended period, for instance by the user falling asleep, controls should be adjusted to a
setting recommended for continuous use.
The instructions for appliances provided with detachable control units or detachable
transformers shall state that the appliance is only to be used with the types that are marked
on the appliance.
The instructions for duvets shall state the length and width of the detachable cover to be
used.
The instructions for appliances containing a fuse link or thermal link shall state that the
appliance must be returned to the manufacturer or his agent if the link has ruptured.
The instructions shall state the substance of the following:
– when not in use, store as follows (quote necessary instructions);
– when storing the appliance, allow it to cool down before folding;
– do not crease the appliance by placing items on top of it during storage (for blankets and
pads only);
– examine the appliance frequently for signs of wear or damage. If there are such signs or if
the appliance has been misused, return it to the supplier prior to any further use;
– this appliance is not intended for medical use in hospitals.
– 14 – 60335-2-17 © IEC:2002:+A1:2006
+A2:2008
The instructions for underblankets shall state the substance of the following:
– the appliance should not be used on an adjustable bed; or
– if the appliance is used on an adjustable bed, check that the blanket and cord do not
become trapped or rucked, for example in hinges.
The instructions shall state that the appliance is not to be used by young children unless the
controls have been pre-set by a parent or guardian, or unless the child has been adequately
instructed on how to operate the controls safely.
2 The instructions for washable appliances fitted with a non-detachable cord shall state that
the switch or control unit must not be allowed to get wet during washing and that during drying
the cord must be positioned to ensure that water does not flow into the switch or control.
The instructions for non-washable appliances shall state how they can be cleaned, for
example with a damp sponge.
7.14 Modification:
Instead of petroleum spirit, liquid detergent is used to check the marking on flexible parts
and detachable covers.
Addition:
The height of the lettering on the flexible part shall be at least 2,5 mm.
The height of the symbols shown in Figure 101 and Figure 102 shall be at least 15 mm.
The height of the words "Important instructions” and ”Retain for future use" shall be at least
6 mm.
Compliance is checked by measurement.
7.101 Detachable control units shall be marked with a reference number or by other
means of identification.
Compliance is checked by inspection.
8 Protection against access to live parts
This clause of Part 1 is applicable.
9 Starting of motor-operated appliances
This clause of Part 1 is not applicable.
10 Power input and current
This clause of Part 1 is applicable except as follows.
10.1 Modification:
The negative deviation in Table 1 is increased to 20 %.
60335-2-17 © IEC:2002+A1:2006 – 15 –
+A2:2008
10.101 The power input of appliances incorporating PTC heating elements shall signifi-
cantly decrease with an increase in temperature.
Compliance is checked by the following test.
The appliance is supplied at rated voltage and operated under normal operation. The power
input shall have decreased by at least 50 % from the initial value when steady conditions are
established, any control operating during this period being short-circuited.
11 Heating
This clause of Part 1 is applicable except as follows.
11.2 Modification:
The plywood base is placed away from the walls of the test corner.
Addition:
Duvets, other than those with PTC heating elements, are also tested folded. A single fold
across the complete width of the duvet is made at a quarter of the length from one end.
Controls are adjusted to the highest setting intended for continuous use.
Wraps are also tested folded. A single fold is made across the flexible part in the most
unfavourable place.
11.3 Addition:
Thermocouples used for determining the temperature of heating elements, or sheaths
containing them, are attached with textile thread over a length of at least 10 mm.
Thermocouples used for determining the temperature of the surface of electro-conductive
textiles are attached to the centre of brass or copper plates measuring 65 mm x 65 mm x
0,5 mm. The plates are coated with insulating lacquer.
Thermocouples used for determining the temperature of the surface of pads are attached to
plates of copper or brass measuring 65 mm × 65 mm × 0,5 mm. The plates are positioned to
cover as many heating element runs as possible, with one side parallel to the direction of the
run. The temperatures are determined at not less than six places, three on each outer surface
of the flexible part.
11.4 Addition:
Controlled appliances and appliances having a flexible part of class III construction are
supplied with the most unfavourable voltage between 0,94 and 1,06 times rated voltage.
11.7 Replacement:
Appliances are operated until steady conditions are established.
– 16 – 60335-2-17 © IEC:2002:+A1:2006
+A2:2008
11.8 Addition:
For controlled appliances, the temperatures shall not exceed the values shown in
Table 101. If the flexible part is comprised of electro-conductive textile, the values
specified for heating elements are applicable to the surface of the material.
Table 101 – Maximum temperatures
Temperature
Part
°C
Heating element of blankets and mattresses
– before the second operation of the thermal control 115
– under steady conditions 95
Heating element of pads
a
– before the second operation of the thermal control
– under steady conditions
Surface of pads b
a
A temperature of 140 °C is allowed for a period of 10 min.
b
0 0
The temperature may exceed 50 C, but not 85 C, for a maximum period of 2 h. The period commences
when the temperature first exceeds 50 C.
For other appliances, the temperature rises shall not exceed the values shown in Table 102.
Table 102 – Maximum temperature rises
Temperature rise
Part
a
K
Heating element 80
Surface of pads 35
a
These values are based on the normal ambient
temperature of the appliance and take into
consideration the maximum allowed ambient
temperatures during the test.
NOTE 101 If the ends of the heating element of pads are contained in a plastic sheath attached to the flexible
part, the temperature or temperature rise specified for the surface also applies to the accessible surface of the
sheath.
11.101 It shall be possible to operate blankets and mattresses without risk of heatstroke to
the user.
Compliance is checked by the following test.
The appliance is supplied as specified in 11.4 and operated under normal operation until
steady conditions are established. The ambient temperature is maintained at the most
o o
unfavourable temperature between 0 C and 15 C. Control units and cord switches are
adjusted to the highest setting recommended for continuous use, except for wraps when the
lowest setting is used.
60335-2-17 © IEC:2002+A1:2006 –
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