IEC 60335-2-111:2024
(Main)Household and similar electrical appliances - Safety - Part 2-111: Particular requirements for electric ondol mattress with a non-flexible heated part
Household and similar electrical appliances - Safety - Part 2-111: Particular requirements for electric ondol mattress with a non-flexible heated part
IEC 60335-2-111:2024 deals with the safety of electric ondol-mattresses for household and similar purposes, their rated voltage being not more than 250 V including direct current (DC) supplied appliances and battery-operated appliances. This standard also applies to control units supplied with the appliance.
Appliances not intended for normal household use, but that nevertheless can be a source of danger to the public, such as appliances intended to be used in community spas or by persons in cold ambient temperatures, are within the scope of this standard.
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.
This standard does not apply to
- appliances intended exclusively for industrial purposes;
- appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);
- blankets, pads and similar flexible heating appliances (IEC 60335-2-17);
- room heaters (IEC 60335-2-30);
- 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);
- flexible sheet heating elements for room heating (IEC 60335-2-96);
- heated carpets and heating units for room heating installed under removable floor coverings (IEC 60335 2 106);
- appliances specifically intended for use under medical supervision (IEC 80601-2-35).
This second edition cancels and replaces the first edition published in 2015. This edition constitutes a technical revision
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60335-1:2020;
b) conversion of some notes to normative text (Clause 1);
c) application of test probe 19 has been introduced (8.1.1, 20.2, B.22.3, B.22.4).
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments unless that edition precludes it; in that case, the latest edition that does not preclude it is used. It was established on the basis of the sixth edition (2020) of that standard.
Appareils électrodomestiques et analogues - Sécurité - Part 2-111: Exigences particulières pour les matelas électriques ondol avec une partie chauffée non flexible
L'IEC 60335-2-111:2024 traite de la sécurité des matelas ondol électriques pour usages domestiques et analogues, dont la tension assignée est inférieure ou égale à 250 V, y compris les appareils alimentés en courant continu et les appareils alimentés par batteries. La présente norme s'applique également aux unités de commande fournies avec l'appareil. Les appareils non destinés à un usage domestique normal, mais qui peuvent néanmoins constituer une source de danger pour le public, tels que les appareils destinés à être utilisés dans les stations thermales ou par des personnes à des températures ambiantes froides, sont compris dans le domaine d'application de la présente norme.
Dans la mesure du possible, la présente norme traite des dangers ordinaires présentés par les appareils, encourus par tous les individus à l'intérieur et autour de l'habitation. Cependant, elle ne tient en général pas compte:
- des personnes (y compris des enfants) dont les capacités physiques, sensorielles ou mentales; ou le manque d'expérience et de connaissance les empêchent d'utiliser l'appareil en toute sécurité sans surveillance ou instruction;
- des enfants qui jouent avec l'appareil.
La présente norme ne s'applique pas
- aux appareils prévus exclusivement pour des usages industriels;
- aux appareils destinés à être utilisés dans des locaux qui présentent des conditions particulières, telles que la présence d'une atmosphère corrosive ou explosive (poussière, vapeur ou gaz);
- aux couvertures, coussins, vêtements et appareils chauffants souples analogues (IEC 60335-2-17);
- aux appareils de chauffage des locaux (IEC 60335-2-30);
- aux dispositifs de chauffage pour matelas à eau (IEC 60335-2-66);
- aux appareils de chauffage destinés à la reproduction et à l'élevage des animaux (IEC 60335-2-71);
- aux chancelières et carpettes chauffantes (IEC 60335-2-81);
- aux films souples chauffants pour le chauffage des locaux (IEC 60335-2-96);
- aux tapis chauffants et aux unités chauffantes pour le chauffage des locaux, installés sous des revêtements de sol amovibles (IEC 60335 2 106);
- aux appareils spécifiquement destinés à être utilisés sous surveillance médicale (IEC 80601-2-35).
Cette deuxième édition annule et remplace la première édition parue en 2015. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) le texte a été aligné sur l'IEC 60335-1:2020;
b) certaines notes ont été converties en texte normatif (Article 1);
c) l'application du calibre d'essai 19 a été introduite (8.1.1, 20.2, B.22.3, B.22.4).
La présente partie 2 doit être utilisée conjointement avec la dernière édition de l'IEC 60335-1 et ses amendements sauf si cette édition l'exclut. Dans ce cas, la dernière édition qui n'exclut pas la présente partie 2 est utilisée. Elle a été établie sur la base de la sixième édition (2020) de cette norme.
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IEC 60335-2-111 ®
Edition 2.0 2024-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-111: Particular requirements for electric ondol-mattress with a non-
flexible heated part
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IEC 60335-2-111 ®
Edition 2.0 2024-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-111: Particular requirements for electric ondol-mattress with a non-
flexible heated part
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120, 97.100.10, 97.140 ISBN 978-2-8322-9875-6
– 2 – IEC 60335-2-111:2024 RLV © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 2
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 9
4 General requirement . 10
5 General conditions for the tests . 10
6 Classification . 10
7 Marking and instructions . 10
8 Protection against access to live parts . 11
9 Starting of motor-operated appliances . 11
10 Power input and current . 11
11 Heating . 11
12 Void Charging of metal-ion batteries . 12
13 Leakage current and electric strength at operating temperature . 12
14 Transient overvoltages . 13
15 Moisture resistance . 13
16 Leakage current and electric strength . 13
17 Overload protection of transformers and associated circuits . 13
18 Endurance . 14
19 Abnormal operation . 14
20 Stability and mechanical hazards . 14
21 Mechanical strength . 15
22 Construction . 15
23 Internal wiring . 16
24 Components . 16
25 Supply connection and external flexible cords . 16
26 Terminals for external conductors . 16
27 Provision for earthing . 16
28 Screws and connections . 17
29 Clearances, creepage distances and solid insulation . 17
30 Resistance to heat and fire . 17
31 Resistance to rusting . 17
32 Radiation, toxicity and similar hazards . 17
Annexes . 19
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 20
Annex AA (normative) Specification for thermal insulation . 21
Bibliography . 22
Figure 101 – Arrangement for measuring leakage current and electric strength of the
ondol-mattress . 18
Figure 102 – Positioning of the thermal insulation on an ondol-mattress incorporating
thermostats . 18
– 4 – IEC 60335-2-111:2024 RLV © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-111: Particular requirements for electric ondol-mattress
with a non-flexible heated part
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
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
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the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition IEC 60335-2-111:2015. A vertical bar appears in the margin
wherever a change has been made. Additions are in green text, deletions are in
strikethrough red text.
IEC 60335-2-111 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliances. It is an International Standard.
This second edition cancels and replaces the first edition published in 2015. This edition
constitutes a technical revision
This edition includes the following significant technical changes with respect to the previous
edition:
a) alignment with IEC 60335-1:2020;
b) conversion of some notes to normative text (Clause 1);
c) application of test probe 19 has been introduced (8.1.1, 20.2, B.22.3, B.22.4).
The text of this International Standard is based on the following documents:
Draft Report on voting
61/7280/FDIS 61/7303/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts of the IEC 60335 series, under the general title: Household and similar
electrical appliances – Safety, can be found on the IEC website.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments unless that edition precludes it; in that case, the latest edition that does not
preclude it is used. It was established on the basis of the sixth edition (2020) of that standard.
NOTE 1 When "Part 1" is 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 ondol-mattress with a
non-flexible heated part.
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 2 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 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
– 6 – IEC 60335-2-111:2024 RLV © IEC 2024
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 document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
NOTE 4 The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations can 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 this publication be adopted for implementation nationally
not earlier than 12 months or later than 36 months from the date of publication.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
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.
Guidance documents concerning the application of the safety requirements for appliances can
be accessed via TC 61 supporting documents on the IEC website
https://www.iec.ch/tc61/supportingdocuments
This information is given for the convenience of users of this International Standard and does
not constitute a replacement for the normative text in this standard.
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 can 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.
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 Horizontal publications, basic safety publications and group safety
publications 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.
NOTE 3 Standards dealing with non-safety aspects of household appliances are:
– IEC standards published by TC 59 concerning methods of measuring performance;
– CISPR 11, CISPR 14-1 and relevant IEC 61000-3 series standards concerning electromagnetic emissions;
– CISPR 14-2 concerning electromagnetic immunity;
– IEC standards published by TC 111 concerning environmental matters.
– 8 – IEC 60335-2-111:2024 RLV © IEC 2024
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-111: Particular requirements for electric ondol-mattress
with a non-flexible heated part
1 Scope
This clause of Part 1 is replaced by the following.
This part of IEC 60335 deals with the safety of electric ondol-mattresses for household and
similar purposes, their rated voltage being not more than 250 V including direct current (DC)
supplied appliances and battery-operated appliances.
This standard also applies to control units supplied with the appliance.
Appliances not intended for normal household use, but that nevertheless may can be a source
of danger to the public, such as appliances intended to be used in community spas or by
persons in cold ambient temperatures, are within the scope of this standard.
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.
– 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 This standard does not apply to
– appliances intended exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the
presence of a corrosive or explosive atmosphere (dust, vapour or gas);
– blankets, pads and similar flexible heating appliances (IEC 60335-2-17);
– room heaters (IEC 60335-2-30);
– 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);
– flexible sheet heating elements for room heating (IEC 60335-2-96);
– heated carpets and heating units for room heating installed under removable floor coverings
(IEC 60335-2-106);
– appliances specifically intended for use under medical supervision (IEC 80601-2-35).
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)
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
3.1 Definitions relating to physical characteristics
3.1.9 Replacement Modification:
normal operation
Replace the first paragraph with the following:
operation of the appliance under the following conditions:
The ondol-mattress is placed on the floor of the test corner away from the walls, any legs
forming part of the bed frame being removed.
The base of the bed frame is replaced by a piece of 20 mm thick plywood. The ondol-plate is
covered by a sheet of thermal insulation.
Note 1101 to entry: The specification for the thermal insulation is given in normative Annex AA.
3.5 Definitions relating to types of appliances
3.5.101
ondol-mattress
appliance comprising an ondol-plate that incorporates an embedded heating element that
heats the ondol-plate, and a bed frame that supports the ondol-plate
Note 1 to entry: Ondol-plates are usually made from inorganic material such as stone or loess.
3.5.102
controlled appliance
appliance incorporating means in the ondol-mattress for sensing changes in temperature when
the appliance is operated under normal operation, thus automatically controlling the average
power input
3.6 Definitions relating to parts of an appliance
3.6.101
heating element
heating conductor such as a heating sheet or wires covered with insulation material
3.102
ondol-mattress
appliance comprising an ondol-plate that incorporates an imbedded heating element that heats
the ondol-plate, and a bed frame that supports the ondol-plate
Note 1 to entry: Ondol-plates are usually made from inorganic material such as stone or loess.
– 10 – IEC 60335-2-111:2024 RLV © IEC 2024
3.1036.102
control unit
device, incorporated in the bed frame or external to the bed frame, by means of which the
average power input of the appliance can be adjusted or regulated
Note 1 to entry: Multi-position cord switches are not considered to be control units unless they incorporate
components for regulating the power input.
3.104
controlled appliance
appliance incorporating means in the ondol-mattress for sensing changes in temperature when
the appliance is operated under normal operation, thus automatically controlling the average
power input
3.1056.103
bed frame
frame that supports the ondol-plate
Note 1 to entry: The bed frame may can incorporate legs to provide a gap between the underside of the ondol-
plate and the floor.
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.
5.8.101 Controlled appliances are supplied as specified for motor-operated appliances.
6 Classification
This clause of Part 1 is applicable.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Addition:
Appliances shall be marked with
– the rated power input;
– symbol ISO 7000-0790 (2004-01) or the substance of "Please read the instructions";
– symbol ISO 7000-0434A (2004-01) or the substance of "Caution: Do not use with a helpless
person, an infant or a person insensitive to heat".
Appliances to be used with a detachable control unit shall be marked with the reference of
the control unit to be used.
Appliances to be used with detachable transformer shall be marked with the reference of the
transformer to be used.
Detachable control units and detachable transformers shall be marked with the reference
of the appliances with which they can be used.
7.12 Addition:
The instructions shall contain the substance of the following:
Important instructions. Retain for future use.
This appliance is not intended for medical use in a hospital.
This appliance must not be used by persons insensitive to heat and other very vulnerable
persons who are unable to react to overheating.
Examine the appliance frequently for signs of wear or damage. If there are such signs, if
the appliance has been misused or does not work, discontinue use and notify the supplier.
The instructions shall contain the substance of the markings required in 7.1. If symbols are
used, they shall be explained.
The instructions shall specify the appropriate settings of controls for continuous use of the
appliance.
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.
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 except as follows.
8.1.1 Addition:
In addition to the use of test probe 18, test probe 19 of IEC 61032 is also applied wherever test
probe 18 is used and with the same test conditions used for test probe 18.
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.
11 Heating
This clause of Part 1 is applicable except as follows.
11.2 ModificationAddition:
When there is a separate control unit, it is placed away from the appliances.
– 12 – IEC 60335-2-111:2024 RLV © IEC 2024
11.3 Addition:
Thermocouples used for determining the surface temperature of the ondol-mattress are
soldered to plates of copper or brass measuring 65 mm × 65 mm × 0,5 mm. The temperatures
are determined in at least four places.
11.7 Replacement Modification:
Replace the first paragraph with the following:
Appliances are operated until steady conditions are established.
11.8 Addition:
The surface temperature of the ondol-mattress shall not exceed 56 °C.
11.101 It shall be possible to operate the ondol-mattress without risk of heatstroke to the
user.
Compliance is checked by the following test.
The appliance is operated under normal operation supplied as specified in 11.4. The control
unit or cord switch is adjusted to the highest setting recommended for continuous use.
When steady conditions are established, but at least 1 h after switching on the appliance, the
surface temperature is measured. The temperature of the surface of the ondol-mattress is
determined by means of a thermocouple attached to the centre of a plate of copper or brass
having dimensions 300 mm × 300 mm × 0,5 mm.
The temperature shall not exceed 37 °C.
12 Void Charging of metal-ion batteries
This clause of Part 1 is applicable.
13 Leakage current and electric strength at operating temperature
This clause of Part 1 is applicable except as follows.
13.1 Modification:
For testing the ondol-mattress, a sheet of metal foil, approximately 0,1 mm thick and of
sufficient a size necessary to cover the area of that part of the ondol-mattress incorporating
the current-carrying parts, is inserted between the ondol-mattress and the sheet of thermal
insulation. A uniformly distributed load of approximately 35 kg/m is placed on the sheet of
thermal insulation.
The arrangement is shown in Figure 101.
13.2 Modification:
The leakage current is measured between any pole of the supply and the sheet of metal foil.
The leakage current for the ondol-mattress shall not exceed 1 mA/m of the heating part with
a maximum of 2,5 mA.
13.3 Modification:
For the ondol-mattress, the test voltage is applied between live parts and the sheet 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.
15.2 Addition:
of the upper surface area of the
A quantity of the spillage solution corresponding to 1 l/m
ondol-mattress is poured uniformly over the ondol-mattress at the rate of approximately
1 l/min.
The spillage solution is allowed to soak into the ondol-mattress for a period of 30 min.
After 30 min, 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.
16 Leakage current and electric strength
This clause of Part 1 is applicable except as follows.
16.2 Addition:
A sheet of metal foil, approximately 0,1 mm thick and of sufficient a size necessary to cover the
area of that part of the ondol-mattress incorporating the current-carrying parts, is inserted
between the ondol-mattress and the sheet of thermal insulation. A uniformly distributed load
of approximately 35 kg/m is placed on the top sheet of thermal insulation.
The leakage current for the heating part shall not exceed 2,5 mA.
16.3 Addition:
After the ondol-mattress is covered with metal foil, it is tested with the voltage applied between
live parts and the sheet of metal foil.
17 Overload protection of transformers and associated circuits
This clause of Part 1 is applicable.
– 14 – IEC 60335-2-111:2024 RLV © IEC 2024
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.
The appliance is subjected to the tests of 19.101 and 19.102 and 19.103.
The appliances incorporating electronic circuits are also subjected to the tests of 19.11, 19.12
and 19.14.
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:
The temperature of the surface of the ondol-mattress shall not exceed 80 °C.
19.101 Appliances are operated under normal operation except that the sheet of thermal
insulation covers only part of the ondol-mattress. The test is carried out eight times, the
boundary of the area covered being in turn parallel to each of the sides and to the diagonals of
the ondol-mattress as shown in Figure 102.
19.102 Appliances are operated under the conditions specified in Clause 11. Any control that
limits the temperature during the test of Clause 11 is short-circuited.
19.103 Ondol-mattresses shall be constructed so that failure of a component, other than
heating elements or internal wiring, does not give rise to a temperature which could be
hazardous to the human body.
Compliance is checked by carrying out the test of 11.101 but simulating failure of components
which might reasonably be expected to occur in normal use. During the test, the temperature
of the surface of the ondol-mattress shall not exceed 56 °C.
Appliances can have one overshoot of up to 85 °C provided that when the temperature exceeds
56 °C a non-self-resetting thermal cut-out operates.
20 Stability and mechanical hazards
This clause of Part 1 is applicable except as follows.
20.1 Addition:
The test is only applied to control units intended to be placed on a surface.
20.2 Addition:
In addition to the use of test probe 18, test probe 19 of IEC 61032 is also applied wherever test
probe 18 is used and with the same test conditions used for test probe 18.
21 Mechanical strength
This clause of Part 1 is applicable except as follows.
21.1 Addition:
Control units intended to be placed on a surface are also subjected to the test of 21.101.
21.101 The control unit is dropped from a height of 40 mm onto a rigidly mounted steel plate
having a thickness of at least 15 mm and a mass of at least 15 kg. It is dropped so that it lands
on its base, the test being carried out 100 times.
A sandbag with the weight of 80 kg and a square bottom with a length of 300 mm on each side
is placed on the control unit for 1 min.
The control unit is then dropped three times from a height 500 mm onto a hardwood floor by
pulling it from a horizontal support by means of its cord so that it falls freely.
After the test, the control unit shall not be damaged to such an extent that compliance with
this standard is impaired. If the control unit still operates, the appliance shall withstand the
tests of Clause 11.
22 Construction
This clause of Part 1 is applicable except as follows.
22.101 The ondol-mattress shall be constructed so that heating elements and internal wiring
are retained in their intended position. No part of the heating element shall cross over another
part of the heating element.
Crossing of internal wiring shall be avoided as far as possible. When this is unavoidable, unless
the wiring shall be is secured in order to prevent any relative movement.
Compliance is checked by inspection.
22.102 The insulation of heating elements and internal wiring shall be integral with the
conductors in the heating part, for other than class III construction.
Compliance is checked by inspection.
22.103 Control units intended to stand on a table shall not have openings on the underside
that could allow small items to penetrate and touch live parts.
Compliance is checked by inspection and measuring the distance between the supporting
surface and live parts through openings. This distance shall be at least 8 mm.
22.104 Control units that automatically switch from a high heat output to a low heat output
after a pre-set time shall not automatically switch back to the high heat output setting.
– 16 – IEC 60335-2-111:2024 RLV © IEC 2024
Compliance is checked by inspection and during the test of 11.101.
22.105 Fuse links or thermal links that are incorporated to protect the ondol-mattress
against overheating or ignition shall not be replaceable by the user.
Compliance is checked by inspection.
23 Internal wiring
This clause of Part 1 is applicable.
24 Components
This clause of Part 1 is applicable except as follows.
24.1.4 Modification:
Thermostats are operated for 100 000 cycles of operation and self-resetting thermal cut-outs
for 10 000 cycles of operation.
24.2 Addition:
Appliances may be fitted with switches or control units in flexible cords.
24.101 Thermal cut-outs incorporated in appliances for compliance with 19.102 shall not be
self-resetting.
Compliance is checked by inspection.
25 Supply connection and external flexible cords
This clause of Part 1 is applicable except as follows.
25.2 Addition:
Ondol-mattresses having two separate heated areas may have two means of connection to
the supply.
25.15 Modification:
Flexible cords connected to the ondol-mattress are subjected to a pull force of 100 N that is
only applied three times for 1 min each time, the longitudinal measurement not being made.
Flexible cords connected to switches and control units are subjected to a pull force of 100 N.
26 Terminals for external conductors
This clause of Part 1 is applicable.
27 Provision for earthing
This clause of Part 1 is applicable.
28 Screws and connections
This clause of Part 1 is applicable except as follows.
28.2 Addition:
The requirement does not apply to the connections to the heating elements.
29 Clearances, creepage distances and solid insulation
This clause of Part 1 is applicable.
30 Resistance to heat and fire
This clause of Part 1 is applicable except as follows.
30.2.2 Not applicable.
31 Resistance to rusting
This clause of Part 1 is applicable.
32 Radiation, toxicity and similar hazards
This clause of Part 1 is applicable.
– 18 – IEC 60335-2-111:2024 RLV © IEC 2024
Key
A circuit of Figure 4 of IEC 60990:2016
B sheet of thermal insulation
C ondol-mattress
D uniformly distributed load
E aluminium foil
F plywood base
Figure 101 – Arrangement for measuring leakage current
and electric strength of the ondol-mattress
Key
A thermal insulation
Figure 102 – Positioning of the thermal insulation on
an ondol-mattress incorporating thermostats
Annexes
The annexes of Part 1 are applicable except as follows:
– 20 – IEC 60335-2-111:2024 RLV © IEC 2024
Annex B
(normative)
Battery-operated appliances, separable batteries and
detachable batteries for battery-operated appliances
Annex B of Part 1 Is applicable except as follows.
B.22.3 Addition:
In addition to the use of test probe 18, test probe 19 of IEC 61032 is also applied wherever test
probe 18 is used and with the same test conditions used for test probe 18.
B.22.4 Addition:
In addition to the use of test probe 18, test probe 19 of IEC 61032 is also applied wherever test
probe 18 is used and with the same test conditions used for test probe 18.
The thermal insulation has the following composition:
+2
• cell count: 18 per cm
+10
• specific mass: 30 kg/m %
• hardness: 120 N to 170 N at 40 % impression, measured according to ISO 2439
• thickness: 25 mm
– 22 – IEC 60335-2-111:2024 RLV © IEC 2024
Bibliography
The Bibliography of Part 1 is applicable except as follows.
Addition:
IEC 60335-2-17, Household and similar electrical appliances – Safety – Part 2-17: Particular
requirements for blankets, pads and similar flexible heating appliances
IEC 60335-2-30, Household and similar electrical appliances – Safety – Part 2-30: Particular
requirements for room heaters
IEC 60335-2-66, Household and similar electrical appliances – Safety – Part 2-66: Particular
requirements for water-bed heaters
IEC 60335-2-71, Household and similar electrical appliances – Safety – Part 2-71: Particular
requirements for electrical heating appliances for breeding and rearing animals
IEC 60335-2-81, Household and similar electrical appliances – Safety – Part 2-81: Particular
requirements for foot warmers and heating mats
IEC 60335-2-96, Household and similar electrical appliances – Safety – Part 2-96: Particular
requirements for flexible sheet heating elements for room heating
IEC 60335-2-106, Household and similar electrical appliances – Safety – Part 2-106: Particular
requirements for heated carpets and for heating units for room heating installed under
removable floor coverings
IEC 80601-2-35, Medical electrical equipment – Part 2-35: Particular requirements for the basic
safety and essential performance of heating devices using blankets, pads and mattresses and
intended for heating in medical use
___________
IEC 60335-2-111 ®
Edition 2.0 2024-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-111: Particular requirements for electric ondol-mattress with a non-
flexible heated part
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-111: Exigences particulières pour les matelas électriques ondol avec
une partie chauffée non flexible
– 2 – IEC 60335-2-111:2024 © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 9
4 General requirement . 10
5 General conditions for the tests . 10
6 Classification . 10
7 Marking and instructions . 10
8 Protection against access to live parts . 11
9 Starting of motor-operated appliances . 11
10 Power input and current . 11
...
IEC 60335-2-111 ®
Edition 2.0 2024-10
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This full version of IEC 60335-2-111:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-111: Particular requirements for electric ondol mattress with a non-
flexible heated part
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IEC 60335-2-111 ®
Edition 2.0 2024-10
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This full version of IEC 60335-2-111:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-111: Particular requirements for electric ondol mattress with a non-
flexible heated part
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120, 97.100.10, 97.140 ISBN 978-2-8322-9876-3
IEC 60335-1:2020/ISH1:2021 – 1 –
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60335-1
Edition 6.0 2020-09
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –
Part 1: General requirements
INTERPRETATION SHEET 1
This interpretation sheet has been prepared by IEC technical committee 61: Safety of
household and similar electrical appliances.
The text of this Interpretation Sheet is based on the following documents:
Draft Report on voting
61/5999/DISH 61/6009/RVDISH
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
___________
INTRODUCTION
Edition 6 of IEC 60335-1:2020 defines and introduces requirements for a detachable
power supply part of an appliance. In the document, 24.2 prohibits the use of a power
supply in a flexible cord.
QUESTION:
Does Subclause 24.2 prohibit the use of a detachable power supply part?
ANSWER
No, a "detachable power supply part" is a defined term and is not captured by the term
"power supply" as used in Subclause 24.2.
NOTE A detachable power supply part is captured by the defined term when the output of the power supply
part is detachable from the class III construction part of the appliance at:
– the power supply part, or
– the class III construction part of the appliance.
However, the supply cord (if any) does not have to be detachable from the detachable power supply part.
ICS 13.120; 97.030
IEC 60335-1:2020-09/ISH1:2021-11(en)
– 2 – IEC 60335-2-111:2024 EXV © IEC 2024
CONTENTS
FOREWORD . 6
INTRODUCTION to IEC 60335-1:2020 . 9
INTRODUCTION to IEC 60335-2-111:2024 . 11
1 Scope . 12
2 Normative references . 12
3 Terms and definitions . 17
4 General requirement . 29
5 General conditions for the tests . 29
6 Classification . 34
7 Marking and instructions . 34
8 Protection against access to live parts . 43
9 Starting of motor-operated appliances . 45
10 Power input and current . 45
11 Heating . 47
12 Charging of metal-ion batteries . 53
13 Leakage current and electric strength at operating temperature . 55
14 Transient overvoltages . 57
15 Moisture resistance . 58
16 Leakage current and electric strength . 61
17 Overload protection of transformers and associated circuits . 63
18 Endurance . 64
19 Abnormal operation . 64
20 Stability and mechanical hazards . 75
21 Mechanical strength . 76
22 Construction . 78
23 Internal wiring . 91
24 Components . 93
25 Supply connection and external flexible cords . 98
26 Terminals for external conductors . 106
27 Provision for earthing . 109
28 Screws and connections . 110
29 Clearances, creepage distances and solid insulation . 113
30 Resistance to heat and fire . 121
31 Resistance to rusting . 125
32 Radiation, toxicity and similar hazards . 125
Annex A (informative) Routine tests . 140
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 142
Annex C (normative) Ageing test on motors . 163
Annex D (normative) Thermal motor protectors . 164
Annex E (normative) Needle-flame test . 165
Annex F (normative) Capacitors . 166
Annex G (normative) Safety isolating transformers . 168
Annex H (normative) Switches . 169
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 171
Annex J (normative) Coated printed circuit boards . 173
Annex K (informative) Overvoltage categories . 174
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 175
Annex M (informative) Pollution degree . 178
Annex N (normative) Proof tracking test . 179
Annex O (informative) Selection and sequence of the tests of Clause 30 . 180
Annex P (informative) Guidance for the application of this standard to appliances
used in tropical climates . 185
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 187
Annex R (normative) Software evaluation . 190
Annex S (informative) Guidance for the application of this standard on measurement
of power input and current based on the requirements of 10.1 and 10.2 concerning the
representative period . 204
Annex T (normative) UV-C radiation effect on non-metallic materials . 205
Annex U (normative) Appliances intended for remote communication through public
networks . 208
Annex AA (normative) Specification for thermal insulation . 212
Bibliography . 213
Index of defined terms . 216
Figure 1 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of class II appliances and for parts of class ll construction . 126
Figure 2 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of other than class II appliances or parts of class ll
construction . 127
Figure 3 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral class II appliances and for parts of class ll construction . 128
Figure 4 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral appliances other than those of class II or parts of class ll
construction . 129
Figure 5 – Small part . 130
Figure 6 – Example of an electronic circuit with low-power points . 130
Figure 7 – Test finger nail . 131
Figure 8 – Flexing test apparatus . 132
Figure 9 – Constructions of cord anchorages . 133
Figure 10 – An example of parts of an earthing terminal . 134
Figure 11 – Examples of clearances . 135
Figure 12 – Example of the placement of the cylinder . 136
Figure 13 – Small parts cylinder . 137
Figure 14 – Example of a specified operating region of a lithium-ion cell during
charging . 138
– 4 – IEC 60335-2-111:2024 EXV © IEC 2024
Figure 101 – Arrangement for measuring leakage current and electric strength of the
ondol-mattress . 139
Figure 102 – Positioning of the thermal insulation on an ondol-mattress incorporating
thermostats . 139
Figure B.1 – Examples of battery-operated appliance constructions and application of
normative Annex B (1 of 2) . 161
Figure B.2 – Examples of correct polarity connection marking representing three
batteries . 162
Figure I.1 – Simulation of faults . 172
Figure L.1 – Sequence for the determination of clearances . 175
Figure L.2 – Sequence for the determination of creepage distances . 176
Figure L.3 – Measurement of clearances . 177
Figure O.1 – Tests for resistance to heat . 180
Figure O.2 – Selection and sequence of tests for resistance to fire in hand-held
appliances . 181
Figure O.3 – Selection and sequence of tests for resistance to fire in attended
appliances . 181
Figure O.4 – Selection and sequence of tests for resistance to fire in unattended
appliances . 182
Figure O.5 – Some applications of the term "within a distance of 3 mm" . 184
Figure Q.1 – Flowchart outlining the sequence of tests for the evaluation of electronic
circuits (1 of 2) . 188
Figure S.1 – Flowchart giving guidance on measurement of power input and current
concerning the representative period . 204
Table 1 – Power input deviation . 45
Table 2 – Current deviation . 46
Table 3 – Maximum normal temperature rises . 50
Table 4 – Voltage for electric strength test . 57
Table 5 – Characteristics of high-voltage sources . 57
Table 6 – Impulse test voltage . 58
Table 7 – Test voltages. 63
Table 8 – Maximum winding temperature . 67
Table 9 – Maximum abnormal temperature rise . 72
Table 10 – Dimensions of cables and conduits . 99
Table 11 – Minimum cross-sectional area of conductors . 101
Table 12 – Pull force and torque . 103
Table 13 – Nominal cross-sectional area of conductors . 108
Table 14 – Torque for testing screws and nuts . 112
Table 15 – Rated impulse voltage . 114
Table 16 – Minimum clearances . 114
Table 17 – Minimum creepage distances for basic insulation . 118
Table 18 – Minimum creepage distances for functional insulation . 119
Table 19 – Minimum thickness for accessible parts of reinforced insulation consisting
of a single layer . 121
Table A.1 – Test voltages . 141
Table B.1 – Artificial source characteristics . 144
Table B.2 – Total area of openings for metal-ion cells . 152
Table B.3 – Volume of air injected at 2 070 kPa . 152
Table C.1 – Test conditions . 163
Table R.1 – General fault/error conditions . 192
Table R.2 – Specific fault/error conditions . 194
Table R.3 – Semi-formal methods . 200
Table R.4 – Software architecture specification . 200
Table R.5 – Module design specification . 201
Table R.6 – Design and coding standards . 202
Table R.7 – Software safety validation . 202
Table T.1 – Minimum property retention limits after UV-C exposure . 206
Table T.2 – Minimum electric strength for internal wiring after UV-C exposure . 207
Table U.1 – Examples of acceptable measures against unauthorised access and
transmission fault/error modes . 210
– 6 – IEC 60335-2-111:2024 EXV © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-111: Particular requirements for electric ondol-mattress
with a non-flexible heated part
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s).
IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect
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not be held responsible for identifying any or all such patent rights.
This extended version (EXV) of the official IEC Standard provides the user with the full
content of the Standard.
made to IEC 60335-1:2020.
The specific content of IEC 60335-2-111:2024 is displayed on a blue background.
IEC 60335-2-111 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliances. It is an International Standard.
This second edition cancels and replaces the first edition published in 2015. This edition
constitutes a technical revision
This edition includes the following significant technical changes with respect to the previous
edition:
a) alignment with IEC 60335-1:2020;
b) conversion of some notes to normative text (Clause 1);
c) application of test probe 19 has been introduced (8.1.1, 20.2, B.22.3, B.22.4).
The text of this International Standard is based on the following documents:
Draft Report on voting
61/7280/FDIS 61/7303/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts of the IEC 60335 series, under the general title: Household and similar
electrical appliances – Safety, can be found on the IEC website.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments unless that edition precludes it; in that case, the latest edition that does not
preclude it is used. It was established on the basis of the sixth edition (2020) of that standard.
NOTE 1 When "Part 1" is 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 ondol-mattress with a
non-flexible heated part.
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 2 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 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
– 8 – IEC 60335-2-111:2024 EXV © IEC 2024
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 document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
NOTE 4 The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations can 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 this publication be adopted for implementation nationally
not earlier than 12 months or later than 36 months from the date of publication.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
INTRODUCTION to IEC 60335-1:2020
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.
Guidance documents concerning the application of the safety requirements for appliances can
be accessed via TC 61 supporting documents on the IEC website –
www.iec.ch/tc61/supportingdocuments
This information is given for the convenience of users of this International Standard and does
not constitute a replacement for the normative text in this standard.
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 the functions of an appliance are covered by different parts 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.
Throughout this publication, when "part 2" is mentioned, it refers to the relevant part of
IEC 60335.
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 publications, basic safety publications and group safety publications 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.
Individual countries may wish to consider the application of this standard, as far as is
reasonable, to appliances not mentioned in a part 2, and to appliances designed on new
principles. In this case, consideration should be given to defining normal operation, specifying
the classification of the appliance according to Clause 6 and specifying whether the appliance
is operated attended or unattended. Consideration should also be given to particular categories
of likely users and to related specific risks such as access to live parts, hot surfaces or
hazardous moving parts.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of this standard if, when examined and tested, it is found to
have other features which impair the level of safety covered by these requirements.
– 10 – IEC 60335-2-111:2024 EXV © IEC 2024
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 this
standard.
NOTE 3 Standards dealing with non-safety aspects of household appliances are:
– IEC standards published by TC 59 concerning methods of measuring performance;
– CISPR 11, CISPR 14-1 and relevant IEC 61000-3 series standards concerning electromagnetic emissions;
– CISPR 14-2 concerning electromagnetic immunity;
– IEC standards published by TC 111 concerning environmental matters.
INTRODUCTION to IEC 60335-2-111:2024
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.
Guidance documents concerning the application of the safety requirements for appliances can
be accessed via TC 61 supporting documents on the IEC website
https://www.iec.ch/tc61/supportingdocuments
This information is given for the convenience of users of this International Standard and does
not constitute a replacement for the normative text in this standard.
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 can 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.
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 publications, basic safety publications and group safety publications 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.
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.
NOTE 3 Standards dealing with non-safety aspects of household appliances are:
– IEC standards published by TC 59 concerning methods of measuring performance;
– CISPR 11, CISPR 14-1 and relevant IEC 61000-3 series standards concerning electromagnetic emissions;
– CISPR 14-2 concerning electromagnetic immunity;
– IEC standards published by TC 111 concerning environmental matters.
– 12 – IEC 60335-2-111:2024 EXV © IEC 2024
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-111: Particular requirements for electric ondol-mattress
with a non-flexible heated part
1 Scope
This part of IEC 60335 deals with the safety of electric ondol-mattresses for household and
similar purposes, their rated voltage being not more than 250 V including direct current (DC)
supplied appliances and battery-operated appliances.
This standard also applies to control units supplied with the appliance.
Appliances not intended for normal household use, but that nevertheless can be a source of
danger to the public, such as appliances intended to be used in community spas or by persons
in cold ambient temperatures, are within the scope of this standard.
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.
This standard does not apply to
– appliances intended exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the
presence of a corrosive or explosive atmosphere (dust, vapour or gas);
– blankets, pads and similar flexible heating appliances (IEC 60335-2-17);
– room heaters (IEC 60335-2-30);
– 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);
– flexible sheet heating elements for room heating (IEC 60335-2-96);
– heated carpets and heating units for room heating installed under removable floor coverings
(IEC 60335-2-106);
– appliances specifically intended for use under medical supervision (IEC 80601-2-35).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60034-1, Rotating electrical machines – Part 1: Rating and performance
IEC 60061-1, Lamp caps and holders together with gauges for the control of interchangeability
and safety – Part 1: Lamp caps
IEC 60065:2014, Audio, video and similar electronic apparatus – Safety requirements
IEC 60068-2-2, Environmental testing – Part 2-2: Tests – Test B: Dry heat
IEC 60068-2-31, Environmental testing – Part 2-31: Tests – Test Ec: Rough handling shocks,
primarily for equipment-type specimens
IEC 60068-2-75, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC 60068-2-78, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat, steady state
IEC TR 60083, Plugs and socket-outlets for domestic and similar general use standardized in
member countries of IEC
IEC 60085:2007, Electrical insulation – Thermal evaluation and designation
IEC 60112:2003, Method for the determination of the proof and the comparative tracking indices
of solid insulating materials
IEC 60112:2003/AMD1:2009
IEC 60127 (all parts), Miniature fuses
IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V
IEC 60227-5:2011, Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V – Part 5: Flexible cables (cords)
IEC 60238, Edison screw lampholders
IEC 60245 (all parts), Rubber insulated cables – Rated voltages up to and including 450/750 V
IEC 60252-1:2010, AC motor capacitors – Part 1: General – Performance, testing and rating –
Safety requirements – Guidance for installation and operation
IEC 60252-1:2010/AMD1:2013
IEC 60309-2, Plugs, socket-outlets and couplers for industrial purposes – Part 2: Dimensional
interchangeability requirements for pin and contact-tube accessories
IEC 60320 (all parts), Appliance couplers for household and similar general purposes
IEC 60320-1, Appliance couplers for household and similar general purposes – Part 1: General
requirements
___________
There exists a consolidated edition 4.1:2009 that includes edition 4 and its Amendment 1.
There exists a consolidated edition 2.1:2013 that includes edition 2 and its Amendment 1.
– 14 – IEC 60335-2-111:2024 EXV © IEC 2024
IEC 60320-2-3, Appliance couplers for household and similar general purposes – Part 2-3:
Appliance couplers with a degree of protection higher than IPX0
IEC 60320-3, Appliance couplers for household and similar general purposes – Part 3: Standard
sheets and gauges
IEC 60384-14:2013, Fixed capacitors for use in electronic equipment – Part 14: Sectional
specification – Fixed capacitors for electromagnetic interference suppression and connection
to the supply mains
IEC 60384-14:2013/AMD1:2016
IEC 60417, Graphical symbols for use on equipment
IEC 60445:2017, Basic and safety principles for man-machine interface, marking and
identification – Identification of equipment terminals, conductor terminations and conductors
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60529:1989/AMD1:1999
IEC 60529:1989/AMD2:2013
IEC 60598-1:2014, Luminaires – Part 1: General requirements and tests
IEC 60598-1:2014/AMD1:2017
IEC 60603-11, Connectors for frequencies below 3 MHz for use with printed boards – Part 11:
Detail specification for concentric connectors (dimensions for free connectors and fixed
connectors)
IEC 60664-1:2007, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requ
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