IEC 60335-2-120:2024
(Main)Household and similar electrical appliances - Safety - Part 2-120: Particular requirements for the safety of appliances for the generation of directly inhalable aerosols
Household and similar electrical appliances - Safety - Part 2-120: Particular requirements for the safety of appliances for the generation of directly inhalable aerosols
IEC 603352-120:2024 deals with the safety of appliances for generation of directly inhalable aerosols, their rated voltage being not more than 250 V for single-phase appliances, and other appliances including direct current (DC) supplied appliances and battery-operated appliances.
Examples of the appliances that are within the scope of this standard are:
- vapour and aerosol appliances;
- personal vaping appliances with or without nicotine;
- electronic cigarettes;
- electronic nicotine delivery systems (ENDS);
- electronic non-nicotine delivery systems (ENNDS);
- electronic tobacco heating appliances for heated tobacco products.
This standard does not apply to:
- medical ventilators,
- humidifiers (IEC 60335-2-98).
These requirements do not cover the consumables, such as e-liquids and other inhaled aerosol substances, wicks, and other particulate matter inhaled during use, nor do they cover substances in the emissions from the operation of the appliances. For example, heavy metal emissions in the aerosol and environmental exposure are not covered by this standard. These requirements do not consider the physiological effects of any consumable used with the appliances. This International Standard does not cover requirements or prohibitions of the labelling, packaging and contents of nicotine-containing or nicotine-consuming products that are strictly regulated by law of the relevant jurisdiction.
Appareils électrodomestiques et analogues - Sécurité - Partie 2-120 : Exigences particulières de sécurité des appareils destinés à produire des aérosols directement inhalables
L'IEC 60335-2-120:2024 traite de la sécurité des appareils destinés à produire des aérosols directement inhalables dont la tension assignée n'est pas supérieure à 250 V pour les appareils monophasés et les autres appareils, y compris les appareils alimentés en courant continu et les appareils alimentés par batteries. La liste suivante répertorie les exemples d'appareils qui relèvent du domaine d'application de la présente norme:
- les appareils à vapeur et à aérosol;
- les appareils à vapoter individuels avec ou sans nicotine;
- les cigarettes électroniques;
- les systèmes électroniques de délivrance de nicotine (ENDS, Electronic Nicotine Delivery Systems);
- les systèmes électroniques de délivrance de produits autres que la nicotine (ENNDS, Electronic Non-Nicotine Delivery Systems);
- les appareils électroniques de chauffage du tabac pour les produits du tabac chauffés.
La présente norme ne s'applique pas:
- aux ventilateurs médicaux;
- aux humidificateurs (IEC 60335-2-98).
D'autres aspects liés à la sécurité des appareils compris dans le domaine d'application de la présente norme peuvent être couverts par des normes établies par le comité technique ISO/TC 126. Ces exigences ne s'appliquent pas aux consommables, tels que les e-liquides et autres substances inhalées sous forme d'aérosols, aux mèches et autres particules inhalées lors de l'utilisation, ni aux substances émises lors du fonctionnement des appareils. Par exemple, les émissions de métaux lourds dans l'aérosol et l'exposition de l'environnement ne sont pas couvertes par la présente norme.
Ces exigences ne tiennent pas compte des effets physiologiques de tout consommable utilisé avec les appareils. La présente Norme internationale ne traite pas des exigences ou interdictions concernant l'étiquetage, l'emballage et le contenu des produits qui contiennent ou consomment de la nicotine, ceux-ci étant strictement régis par la législation de la juridiction concernée. 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 60335-2-120 ®
Edition 1.0 2024-02
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 60335-2-120:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-120: Particular requirements for the safety of appliances for the
generation of directly inhalable aerosols
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IEC 60335-2-120 ®
Edition 1.0 2024-02
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 60335-2-120:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-120: Particular requirements for the safety of appliances for the
generation of directly inhalable aerosols
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120, 97.180 ISBN 978-2-8322-8273-1
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 60335-2-120:2024 EXV © IEC 2024
CONTENTS
FOREWORD . 6
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 15
4 General requirement . 27
5 General conditions for the tests . 27
6 Classification . 31
7 Marking and instructions . 32
8 Protection against access to live parts . 40
9 Starting of motor-operated appliances . 42
10 Power input and current . 42
11 Heating . 44
12 Charging of metal-ion batteries . 50
13 Leakage current and electric strength at operating temperature . 51
14 Transient overvoltages . 54
15 Moisture resistance . 55
16 Leakage current and electric strength . 57
17 Overload protection of transformers and associated circuits . 59
18 Endurance . 60
19 Abnormal operation . 60
20 Stability and mechanical hazards . 70
21 Mechanical strength . 71
22 Construction . 73
23 Internal wiring . 86
24 Components . 88
25 Supply connection and external flexible cords . 93
26 Terminals for external conductors . 101
27 Provision for earthing . 103
28 Screws and connections . 105
29 Clearances, creepage distances and solid insulation . 107
30 Resistance to heat and fire . 116
31 Resistance to rusting . 121
32 Radiation, toxicity and similar hazards . 121
Annex A (informative) Routine tests . 135
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 137
Annex C (normative) Ageing test on motors . 159
Annex D (normative) Thermal motor protectors . 160
Annex E (normative) Needle-flame test . 161
Annex F (normative) Capacitors . 162
Annex G (normative) Safety isolating transformers . 164
Annex H (normative) Switches . 165
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 167
Annex J (normative) Coated printed circuit boards . 169
Annex K (informative) Overvoltage categories . 170
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 171
Annex M (informative) Pollution degree . 174
Annex N (normative) Proof tracking test . 175
Annex O (informative) Selection and sequence of the tests of Clause 30 . 176
Annex P (informative) Guidance for the application of this standard to appliances
used in tropical climates . 181
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 183
Annex R (normative) Software evaluation . 186
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 . 200
Annex T (normative) UV-C radiation effect on non-metallic materials . 201
Annex U (normative) Appliances intended for remote communication through public
networks . 204
Bibliography . 208
Index of defined terms . 211
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 . 122
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 . 123
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 . 124
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 . 125
Figure 5 – Small part . 126
Figure 6 – Example of an electronic circuit with low-power points . 126
Figure 7 – Test finger nail . 127
Figure 8 – Flexing test apparatus . 128
Figure 9 – Constructions of cord anchorages . 129
Figure 10 – An example of parts of an earthing terminal . 130
Figure 11 – Examples of clearances . 131
Figure 12 – Example of the placement of the cylinder . 132
Figure 13 – Small parts cylinder . 133
Figure 14 – Example of a specified operating region of a lithium-ion cell during
charging . 134
Figure B.1 – Examples of battery-operated appliance constructions and application of
normative Annex B (1 of 2) . 157
Figure B.2 – Examples of correct polarity connection marking representing three
batteries . 158
– 4 – IEC 60335-2-120:2024 EXV © IEC 2024
Figure I.1 – Simulation of faults . 168
Figure L.1 – Sequence for the determination of clearances . 171
Figure L.2 – Sequence for the determination of creepage distances . 172
Figure L.3 – Measurement of clearances . 173
Figure O.1 – Tests for resistance to heat . 176
Figure O.2 – Selection and sequence of tests for resistance to fire in hand-held
appliances . 177
Figure O.3 – Selection and sequence of tests for resistance to fire in attended
appliances . 177
Figure O.4 – Selection and sequence of tests for resistance to fire in unattended
appliances . 178
Figure O.5 – Some applications of the term "within a distance of 3 mm" . 180
Figure Q.1 – Flowchart outlining the sequence of tests for the evaluation of electronic
circuits (1 of 2) . 184
Figure S.1 – Flowchart giving guidance on measurement of power input and current
concerning the representative period . 200
Table 1 – Power input deviation . 42
Table 2 – Current deviation . 43
Table 3 – Maximum normal temperature rises . 46
Table 4 – Voltage for electric strength test . 53
Table 5 – Characteristics of high-voltage sources . 54
Table 6 – Impulse test voltage . 54
Table 7 – Test voltages. 59
Table 8 – Maximum winding temperature . 62
Table 9 – Maximum abnormal temperature rise . 68
Table 10 – Dimensions of cables and conduits . 94
Table 11 – Minimum cross-sectional area of conductors . 96
Table 12 – Pull force and torque . 98
Table 13 – Nominal cross-sectional area of conductors . 102
Table 14 – Torque for testing screws and nuts . 106
Table 15 – Rated impulse voltage . 108
Table 16 – Minimum clearances . 109
Table 17 – Minimum creepage distances for basic insulation . 113
Table 18 – Minimum creepage distances for functional insulation . 114
Table 19 – Minimum thickness for accessible parts of reinforced insulation consisting
of a single layer . 116
Table A.1 – Test voltages . 136
Table B.1 – Artificial source characteristics . 139
Table B.2 – Total area of openings for metal-ion cells . 148
Table B.3 – Volume of air injected at 2 070 kPa . 148
Table C.1 – Test conditions . 159
Table R.1 – General fault/error conditions . 188
Table R.2 – Specific fault/error conditions . 190
Table R.3 – Semi-formal methods . 196
Table R.4 – Software architecture specification . 196
Table R.5 – Module design specification . 197
Table R.6 – Design and coding standards . 198
Table R.7 – Software safety validation . 198
Table T.1 – Minimum property retention limits after UV-C exposure . 202
Table T.2 – Minimum electric strength for internal wiring after UV-C exposure . 203
Table U.1 – Examples of acceptable measures against unauthorised access and
transmission fault/error modes . 206
– 6 – IEC 60335-2-120:2024 EXV © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-120: Particular requirements for the safety of appliances
for the generation of directly inhalable aerosols
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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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s).
IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect
thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which may
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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 extended version (EXV) of the official IEC Standard provides the user with the
comprehensive content of the Standard.
made to IEC 60335-1:2020.
The specific content of IEC 60335-2-120:2024 is displayed on a blue background.
IEC 603335-2-120 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliance. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
61/7076/FDIS 61/7099/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: Particular requirements for the safety of appliances for
the generation of directly inhalable aerosols.
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.
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.
– 8 – IEC 60335-2-120:2024 EXV © IEC 2024
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.
The following differences exist in the countries indicated below.
– Clause 1: These devices are considered medical devices and are separately regulated by the Therapeutic Goods
Administration. (Australia).
– Clause 1: Nicotine using products are required to comply with TGO 110 order 2021 (Australia)
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 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.
– 10 – IEC 60335-2-120:2024 EXV © IEC 2024
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-120: Particular requirements for the safety of appliances
for the generation of directly inhalable aerosols
1 Scope
This part of IEC 60335 deals with the safety of appliances for generation of directly inhalable
aerosols, their rated voltage being not more than 250 V for single-phase appliances, and other
appliances including direct current (DC) supplied appliances and battery-operated appliances.
Examples of the appliances that are within the scope of this standard are:
– vapour and aerosol appliances;
– personal vaping appliances with or without nicotine;
– electronic cigarettes;
– electronic nicotine delivery systems (ENDS);
– electronic non-nicotine delivery systems (ENNDS);
– electronic tobacco heating appliances for heated tobacco products.
This standard does not apply to:
– medical ventilators,
– humidifiers (IEC 60335-2-98).
NOTE 101 Other safety aspects of appliances under the scope of this standard can be covered by standards
developed by ISO/TC 126.
These requirements do not cover the consumables, such as e-liquids and other inhaled
aerosol substances, wicks, and other particulate matter inhaled during use, nor do they cover
substances in the emissions from the operation of the appliances.
NOTE 102 For example, heavy metal emissions in the aerosol and environmental exposure are not covered by this
standard.
These requirements do not consider the physiological effects of any consumable used with the
appliances.
This International Standard does not cover requirements or prohibitions of the labelling,
packaging and contents of nicotine-containing or nicotine-consuming products that are strictly
regulated by law of the relevant jurisdiction.
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
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
___________
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.
– 12 – IEC 60335-2-120:2024 EXV © IEC 2024
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, requirements and tests
IEC 60664-3:2016, Insulation coordination for equipment within low-voltage systems – Part 3:
Use of coating, potting or moulding for protection against pollution
IEC 60664-4:2005, Insulation coordination for equipment within low-voltage systems – Part 4:
Consideration of high-frequency voltage stress
IEC 60691, Thermal-links – Requirements and application guide
IEC 60695-2-11:2014, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods –
Glow-wire flammability test method for end-products (GWEPT)
IEC 60695-2-12, Fire hazard testing – Part 2-12: Glowing/hot-wire based test methods – Glow-
wire flammability index (GWFI) test method for materials
IEC 60695-2-13, Fire hazard testing – Part 2-13: Glowing/hot-wire based test methods – Glow-
wire ignition temperature (GWIT) test method for materials
IEC 60695-10-2, Fire hazard testing – Part 10-2: Abnormal heat – Ball pressure test
IEC 60695-11-5:2016, Fire hazard testing – Part 11-5: Test flames – Needle-flame test method
– Apparatus, confirmatory test arrangement and guidance
IEC 60695-11-10, Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and vertical
flame test methods
___________
There exists a consolidated edition 4.1:2016 that includes edition 4 and its Amendment 1.
There exists a consolidated edition 2.2:2013 that includes edition 2 and its Amendment 1 and Amendment 2.
There exists a consolidated edition 8.1:2017 that includes edition 8 and its Amendment 1.
IEC 60730-1:2013, Automatic electrical controls – Part 1: General requirements
IEC 60730-1:2013/AMD1:2015
IEC 60730-2-8:2018, Automatic electrical controls – Part 2-8: Particular requirements for
electrically operated water valves, including mechanical requirements
IEC 60730-2-9:2015, Automatic electrical controls – Part 2-9: Particular requirements for
temperature sensing controls
IEC 60730-2-9:2015/AMD1:2018
IEC 60730-2-10, Automatic electrical controls for household and similar use – Part 2-10:
Particular requirements for motor-starting relays
IEC 60738-1, Thermistors – Directly heated positive temperature coefficient – Part 1: Generic
specification
IEC 60799, Electrical accessories – Cord sets and interconnection cord sets
IEC 60906-1, IEC system of plugs and socket-outlets for household and similar purposes –
Part 1: Plugs and socket-outlets 16 A 250 V a.c.
IEC 60934, Circuit-breakers for equipment (CBE)
IEC 60990:2016, Methods of measurement of touch current and protective conductor current
IEC 60999-1:1999, Connecting devices – Electrical copper conductors – Safety requirements
for screw-type and screwless-type clamping units – Part 1: General requirements and particular
2 2
requirements for clamping units for conductors from 0,2 mm up to 35 mm (included)
IEC 61000-4-2, Electromagnetic compatibility (EMC) – Part 4-2: Testing and measurement
techniques – Electrostatic discharge immunity test
IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement
techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-4, Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement
techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement
techniques – Surge immunity test
IEC 61000-4-6, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement
techniques – Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-11:2020, Electromagnetic compatibility (EMC) – Part 4-11: Testing and measure-
ment techniques – Voltage dips, short interruptions and voltage variations immunity tests for
equipment with input current up to 16 A per phase
IEC 61000-4-13:2002, Electromagnetic compatibility (EMC) – Part 4-13: Testing and
measurement techniques – Harmonics and interharmonics including mains signalling at a.c.
power port, low frequency immunity tests
___________
There exists a consolidated edition 5.1:2015 that includes edition 5 and its Amendment 1.
There exists a consolidated edition 4.1:2018 that includes edition 4 and its Amendment 1.
– 14 – IEC 60335-2-120:2024 EXV © IEC 2024
IEC 61000-4-13:2002/AMD1:2009
IEC 61000-4-13:2002/AMD2:2015
IEC 61000-4-34:2005, Electromagnetic compatibility (EMC) – Part 4-34: Testing and
measurement techniques – Voltage dips, short interruptions and voltage variations immunity
tests for equipment with input current more than 16 A per phase
IEC 61000-4-34:2005/AMD1:2009
IEC 61032:1997, Protection of persons and equipment by enclosures – Probes for verification
IEC 61058-1:2016, Switches for appliances – Part 1: General requirements
IEC 61058-1-1:2016, Switches for appliances – Part 1-1: Requirements for mechanical switches
IEC 61058-1-2:2016, Switches for appliances – Part 1-2: Requ
...
IEC 60335-2-120 ®
Edition 1.0 2024-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-120: Particular requirements for the safety of appliances for the
generation of directly inhalable aerosols
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-120: Exigences particulières de sécurité des appareils destinés à
produire des aérosols directement inhalables
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IEC 60335-2-120 ®
Edition 1.0 2024-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-120: Particular requirements for the safety of appliances for the
generation of directly inhalable aerosols
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-120: Exigences particulières de sécurité des appareils destinés à
produire des aérosols directement inhalables
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.120, 97.180 ISBN 978-2-8322-8173-4
– 2 – IEC 60335-2-120:2024 © IEC 2024
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 7
4 General requirement . 7
5 General conditions for the tests . 7
6 Classification . 8
7 Marking and instructions . 8
8 Protection against access to live parts . 8
9 Starting of motor-operated appliances . 8
10 Power input and current . 8
11 Heating . 8
12 Charging of metal-ion batteries . 9
13 Leaking current electric strength at operating temperature. 9
14 Transient overvoltages . 9
15 Moisture resistance . 9
16 Leakage current and electric strength . 9
17 Overload protection of transformers and associated circuits . 9
18 Endurance . 9
19 Abnormal operation . 9
20 Stability and mechanical hazards . 10
21 Mechanical strength . 10
22 Construction . 10
23 Internal wiring . 10
24 Components . 11
25 Supply connection and external flexible cords . 11
26 Terminals for external conductors . 11
27 Provision for earthing . 11
28 Screws and connections . 11
29 Clearances, creepage distances and solid insulation . 11
30 Resistance to heat and fire . 11
31 Resistance to rusting . 11
32 Radiation, toxicity and similar hazards . 11
Annexes . 12
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 13
Bibliography . 16
Table B.2 – Total area of openings for metal-ion cells . 14
Table B.3 – Volume of air injected at 2 070 kPa . 15
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-120: Particular requirements for the safety of appliances
for the generation of directly inhalable aerosols
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 603335-2-120 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliance. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
61/7076/FDIS 61/7099/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.
– 4 – IEC 60335-2-120:2024 © IEC 2024
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: Particular requirements for the safety of appliances for
the generation of directly inhalable aerosols.
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.
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.
The following differences exist in the countries indicated below.
– Clause 1: These devices are considered medical devices and are separately regulated by the Therapeutic Goods
Administration. (Australia).
– Clause 1: Nicotine using products are required to comply with TGO 110 order 2021 (Australia)
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 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.
– 6 – IEC 60335-2-120:2024 © IEC 2024
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-120: Particular requirements for the safety of appliances
for the generation of directly inhalable aerosols
1 Scope
This clause of Part 1 is replaced by the following.
This part of IEC 60335 deals with the safety of appliances for generation of directly inhalable
aerosols, their rated voltage being not more than 250 V for single-phase appliances, and other
appliances including direct current (DC) supplied appliances and battery-operated
appliances.
Examples of the appliances that are within the scope of this standard are:
– vapour and aerosol appliances;
– personal vaping appliances with or without nicotine;
– electronic cigarettes;
– electronic nicotine delivery systems (ENDS);
– electronic non-nicotine delivery systems (ENNDS);
– electronic tobacco heating appliances for heated tobacco products.
This standard does not apply to:
– medical ventilators,
– humidifiers (IEC 60335-2-98).
NOTE 101 Other safety aspects of appliances under the scope of this standard can be covered by standards
developed by ISO/TC 126.
These requirements do not cover the consumables, such as e-liquids and other inhaled
aerosol substances, wicks, and other particulate matter inhaled during use, nor do they cover
substances in the emissions from the operation of the appliances.
NOTE 102 For example, heavy metal emissions in the aerosol and environmental exposure are not covered by this
standard.
These requirements do not consider the physiological effects of any consumable used with the
appliances.
This International Standard does not cover requirements or prohibitions of the labelling,
packaging and contents of nicotine-containing or nicotine-consuming products that are strictly
regulated by law of the relevant jurisdiction.
2 Normative references
This clause of Part 1 is applicable.
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
3.1 Definitions relating to physical characteristics
3.1.9 Modification:
Replace the first paragraph with the following:
operation as specified in B.3.1.1
3.8 Definitions relating to miscellaneous matters
3.8.101
aerosol
suspension of particles in air or gas
Note 1 to entry: The particles can be comprised of only liquids or a mixture of liquids and solids.
3.8.102
consumable
substrate or receptacle containing a substrate, intended to be used in combination with an
appliance to generate an inhalable aerosol, and which is consumed or depleted through single
or multiple use
EXAMPLE 1 Sealed cartridge containing e-liquid.
EXAMPLE 2 Tobacco or non-tobacco stick.
EXAMPLE 3 Tobacco or non-tobacco capsule.
EXAMPLE 4 Tablets or similar solid formats that will be depleted during use.
EXAMPLE 5 Loose solid materials such as tobacco.
3.8.103
e-liquid
liquid or gel consumable that can contain nicotine
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:
5.101 Appliances, other than those with heating elements, are tested as motor-operated
appliances.
– 8 – IEC 60335-2-120:2024 © IEC 2024
6 Classification
This clause of Part 1 is applicable except as follows:
6.2 Addition:
Appliances shall be at least IPX4. This does not apply to the battery charger or detachable
power supply part for rechargeable battery-operated appliances.
7 Marking and instructions
This clause of Part 1 is applicable except as follows:
7.1 Modification:
Delete the seventh dashed item for marking of the IP number.
7.12 Modification:
Replace the fourth paragraph with the following:
The instructions shall state the substance of the following:
This appliance is not intended for use by persons with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person responsible for their safety.
Children shall not handle the appliance.
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.
11 Heating
This clause of Part 1 is applicable except as follows.
11.7 Modification:
Replace the first paragraph with the following:
The appliance is operated as specified in B.11.1.
12 Charging of metal-ion batteries
This clause of Part 1 is applicable.
13 Leaking current electric strength at operating temperature
This clause of Part 1 is applicable.
14 Transient overvoltages
This clause of Part 1 is applicable.
15 Moisture resistance
This clause of Part 1 is applicable.
16 Leakage current and electric strength
This clause of Part 1 is applicable.
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 Addition:
Compliance is also checked by 19.101.
19.2 Not applicable.
19.3 Not applicable.
19.17 Modification:
Replace the second sentence of the paragraph after item d) with the following:
However, venting of the cells is permitted provided that they have not vented by any means
other than through their vents and the venting of appliance pressure is not directed towards
the user’s mouth.
– 10 – IEC 60335-2-120:2024 © IEC 2024
19.101 Charge the appliance with 130 % of the rated voltage of the power source provided
with the appliance or specified in the instruction or 7,5 V, whichever is higher. Maintain the
voltage until the surface temperature of the appliance achieves steady conditions.
For the purpose of this standard, a steady condition is considered to be attained if the difference
in peak temperature does not exceed 3 K in 30 min. No explosion or ignition of the battery shall
occur during or after the test. However, venting of the cells is permitted provided that they
have not vented by any means other than through their vents.
19.102 Appliances, other than those complying with B.20.101, shall not generate fire hazards
and hazardous events to users due to heating from an accidental operation.
Compliance is checked by the following test:
The appliance is operated according to B.3.1.1 until steady conditions are established. The
appliance is then immediately wrapped by a layer of compressed wool felt sheet with a mass
2 2
per unit area of 4 kg/m ± 0,4 kg/m and a total thickness of 25 mm and the surface temperature
of the appliance is measured in the most unfavourable position by means of fine-wire
thermocouples according to 11.3.
The surface temperature shall not exceed 150 °C.
20 Stability and mechanical hazards
This clause of Part 1 is applicable.
21 Mechanical strength
This clause of Part 1 is applicable.
22 Construction
This clause of Part 1 is applicable except as follows:
22.36 Addition:
Hand-held parts shall be class III appliances or class III constructions having a working
voltage not exceeding 24 V.
Compliance is checked by inspection.
22.101 If the consumable is a solid item which can be removed from the appliance for
replacement or disposal purpose, it shall not burn or ignite the surroundings after use.
Compliance is checked by visual inspection and by operating with the consumable attached to
or inserted into the appliance under normal conditions as specified in B.3.1.1. As soon as
the consumable is consumed and needs to be replaced, it is removed from the appliance in
accordance with the manufacturer’s instructions and placed on a wooden table which is covered
2 2
with a layer of wrapping tissue with mass per unit area between 12 g/m and 30 g/m . The
wrapping tissue shall not burn or ignite.
23 Internal wiring
This clause of Part 1 is applicable.
24 Components
This clause of Part 1 is applicable.
25 Supply connection and external flexible cords
This clause of Part 1 is applicable.
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.
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.
31 Resistance to rusting
This clause of Part 1 is applicable.
32 Radiation, toxicity and similar hazards
This clause of Part 1 is applicable.
– 12 – IEC 60335-2-120:2024 © IEC 2024
Annexes
The annexes of Part 1 are applicable except as follows:
Annex B
(normative)
Battery-operated appliances, separable batteries and
detachable batteries for battery-operated appliances
This annex of Part 1 is applicable except as follows.
3 Terms and definitions
B.3.1.1 Addition:
Before the test, the appliance is assembled or filled with the consumable and activated
according to the manufacturer’s procedures.
11 Heating
B.11.1 Addition:
The appliance is operated for a puff session consisting of 15 individual puffs or until the
appliance automatically deactivates, whichever occurs first, followed by (10 ± 0,5) minutes
between sessions or until device indicates usage is possible, whichever is shorter, and then
repeated continuously until one of the following events occurs:
– the battery is fully discharged, or
– e-liquid is depleted, or
– the appliance ceases functioning due to low levels of the consumable, or
– temperature of the appliance achieves steady conditions.
For the purpose of this standard, a steady condition is considered to be attained if the difference
in peak temperature does not exceed 3 K in 30 min. In the case of the graph of temperature
against time, cycling on and off, only peaks (maximum) are taken into account for the difference
in temperatures.
An individual puff is defined as:
– puff volume: 55 ml ± 5 %;
– puff duration: 3 s ± 0,1 s for appliances using e-liquid, 2 s ± 0,1 s for the others;
– puff period: 10 s ± 0,5 s for appliances using e-liquid, 30 s ± 0,5 s for the others.
A vaping machine is used to drawn air through the appliance. The puff volume is the volume of
air drawn at the mouth end of the appliance. The puff duration is the interval of time, measured
in seconds, during which the suction is applied to the appliance. The puff period is the time
between the start of one puff and the start of the subsequent puff.
NOTE 101 The vaping machine specified in ISO 20768 is an example of a vaping machine that can be used for this
purpose.
If the standard operating regime above is incompatible with the appliance or compromises the
intended function, it may be adjusted accordingly, taking into account the manufacturer's
instructions.
– 14 – IEC 60335-2-120:2024 © IEC 2024
15 Moisture resistance
15.1 Addition:
Inspection shall show that no water has entered the battery compartment and that there is no
wetting of electronic circuits or electrical components relied upon for compliance with this
standard.
15.1.1 Addition:
Battery-operated appliances shall be tested with the battery compartment closed and with
any detachable battery or separable battery in place.
19 Abnormal operation
19.13 Modification:
Replace the second paragraph with the following:
Venting of the cells is permitted provided that they have not vented by any means other than
through their vents and the venting of appliance pressure is not directed towards the user’s
mouth.
Addition:
During and after the tests, the mouthpiece shall remain intact and not become dislodged.
20 Stability and mechanical hazards
B.20.1 Modification:
Replace Table B.2 and Table B.3 with the following:
Table B.2 – Total area of openings for metal-ion cells
Capacity of the single metal-ion cell
Min. total area of openings
with the highest capacity
Ah
mm
0,2 ≤ Ah < 1 6
1 ≤ Ah < 3 10
3 ≤ Ah < 5 20
5 ≤ Ah < 25 30
25 ≤ Ah < 100 50
Ah ≥ 100 100
Table B.3 – Volume of air injected at 2 070 kPa
Capacity of the single metal-ion cell
Volume of air (±10 %)
with the highest capacity
Ah ml
0,2 ≤ Ah < 1 6
1 ≤ Ah < 3 10
3 ≤ Ah < 5 20
5 ≤ Ah < 25 30
25 ≤ Ah < 100 50
Ah ≥ 100 100
B.20.101 Appliances, other than those complying with 19.102, shall be constructed so that
accidental operation is prevented. Appliances that are activated by a pressure difference are
considered as constructed preventing accidental operation.
If a switch is used, the force necessary to activate shall be at least 2 N and the actuating
member shall be recessed unless the appliance automatically shuts off after each operation
and the actuation requires:
– the application of a minimum of two independent and simultaneous movements, or
– particular action to be repeated a minimum of three times in succession within 2 s. If a touch
control is used, it shall require at least two manual operations to switch on the appliance
but only one operation to switch it off. Touching the contact surface at the same point twice
is not considered to be two manual operations.
Compliance is checked by inspection and manual test and, for switches with a recessed
actuating member, applying a rigid cylindrical rod, having a diameter of 40 mm and a
hemispherical end, to the actuating member of the switch. The test rod is applied with a force
not exceeding 5 N. The appliance shall not operate.
21 Mechanical strength
21.1 Modification:
For the test free-fall − procedure 1 of IEC 60068-2-31, the height of the drop shall be 1,5 m
instead of 1 m.
B.21.1 Modification:
For the test free-fall − procedure 1 of IEC 60068-2-31, the height of the drop shall be 1,5 m
instead of 1 m.
22 Construction
B.22.101 Appliances shall not be constructed with provision for user-replaceable sealed
secondary lithium cells containing non-acid electrolyte.
Cells that can be removed from appliances only for disposal or recycling are not considered as
user-replaceable cells.
NOTE This requirement only applies to sealed secondary lithium cells but does not apply to batteries.
Compliance is checked by inspection.
– 16 – IEC 60335-2-120:2024 © IEC 2024
Bibliography
The bibliography of Part 1 is applicable except as follows.
Addition:
IEC 60335-2-98, Household and similar electrical appliances – Safety – Part 2-98: Particular
requirements for humidifiers
ISO 20768, Vapour products – Routine analytical vaping machine – Definitions and standard
conditions
___________
– 18 – IEC 60335-2-120:2024 © IEC 2024
SOMMAIRE
AVANT-PROPOS . 19
INTRODUCTION . 22
1 Domaine d'application . 24
2 Références normatives . 25
3 Termes et définitions . 25
4 Exigences générales . 25
5 Conditions générales d'essais . 25
6 Classification . 26
7 Marquage et instructions . 26
8 Protection contre l'accès aux parties actives. 26
9 Démarrage des appareils à moteur . 26
10 Puissance et courant . 26
11 Échauffements. 26
12 Charge des batteries à ions métalliques . 27
13 Courant de fuite et rigidité diélectrique à la température de régime . 27
14 Surtensions transitoires . 27
15 Résistance à l'humidité . 27
16 Courant de fuite et rigidité diélectrique . 27
17 Protection contre la surcharge des transformateurs et des circuits associés . 27
18 Endurance . 27
19 Fonctionnement anormal . 27
20 Stabilité et dangers mécaniques . 28
21 Résistance mécanique . 28
22 Construction . 28
23 Conducteurs internes. 29
24 Composants . 29
25 Raccordement au réseau et câbles souples extérieurs . 29
26 Bornes pour conducteurs externes . 29
27 Dispositions en vue de la mise à la terre . 29
28 Vis et connexions . 29
29 Distances dans l'air, lignes de fuite et isolation solide. 29
30 Résistance à la chaleur et au feu . 29
31 Protection contre la rouille . 29
32 Rayonnement, toxicité et dangers analogues . 29
Annexes . 30
Annexe B (normative) Appareils alimentés par batteries, batteries séparables et
batteries amovibles pour les appareils alimentés par batteries . 31
Bibliographie . 35
Tableau B.2 – Surface totale des ouvertures des éléments à ions métalliques . 32
Tableau B.3 – Volume d'air injecté à 2 070 kPa . 33
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
SÉCURITÉ –
Partie 2-120: Exigences particulières de sécurité des appareils destinés
à produire des aérosols directement inhalables
AVANT-PROPOS
1) La Commission Électrotechnique Internationale (IEC) est une organisation mondiale de normalisation composée
de l'ensemble des comités électrotechniques nationaux (Comités nationaux de l'IEC). L'IEC a pour objet de
favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines de
l'électricité et de l'électronique. À cet effet, l'IEC – entre autres activités – publie des Normes internationales,
des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au public (PAS) et des
Guides (ci-après dénommés "Publication(s) de l'IEC"). Leur élaboration est confiée à des comités d'études, aux
travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les organisations
internationales, gouvernementales et non gouvernementales, en liaison avec l'IEC, participent également aux
travaux. L'IEC 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 l'IEC concernant les questions techniques représentent, dans la mesure du
possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de l'IEC intéressés
sont représentés dans chaque comité d'études.
3) Les Publications de l'IEC se présentent sous la forme de r
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