IEC 60335-2-122:2023

IEC 60335-2-122 ®
Edition 1.0 2023-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-122: Particular requirements for commercial washing machines

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-122: Exigences particulières pour les machines à laver le linge à usage
commercial
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IEC 60335-2-122 ®
Edition 1.0 2023-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –

Part 2-122: Particular requirements for commercial washing machines

Appareils électrodomestiques et analogues – Sécurité –

Partie 2-122: Exigences particulières pour les machines à laver le linge à usage

commercial
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.060  ISBN 978-2-8322-7877-2

– 2 – IEC 60335-2-122:2023 © IEC 2023
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 8
3 Terms and definitions . 8
4 General requirement . 10
5 General conditions for the tests . 10
6 Classification . 10
7 Marking and instructions . 11
8 Protection against access to live parts . 12
9 Starting of motor-operated appliances . 12
10 Power input and current . 12
11 Heating . 12
12 Charging of metal-ion batteries . 15
13 Leakage current and electric strength at operating temperature . 15
14 Transient overvoltages . 16
15 Moisture resistance . 16
16 Leakage current and electric strength . 17
17 Overload protection of transformers and associated circuits . 18
18 Endurance . 18
19 Abnormal operation . 19
20 Stability and mechanical hazards . 20
21 Mechanical strength . 23
22 Construction . 24
23 Internal wiring . 29
24 Components . 29
25 Supply connection and external flexible cords . 29
26 Terminals for external conductors . 29
27 Provision for earthing . 30
28 Screws and connections . 30
29 Clearances, creepage distances and solid insulation . 30
30 Resistance to heat and fire . 30
31 Resistance to rusting . 30
32 Radiation, toxicity and similar hazards . 30
Annexes . 32
Annex R (normative) Software evaluation . 33
Annex AA (normative) Detergent . 34
Annex BB (normative) Ageing test for elastomeric parts . 35
Bibliography . 37

Figure 101 – Probe for measuring surface temperatures . 31

Table 101 – Maximum temperature rises for specified external accessible surfaces
under normal operating conditions . 14
Table 102 – Maximum temperature rises of external accessible surfaces for appliances
intended to be installed in areas open to the public under normal operating conditions . 15
Table AA.1 – Composition of the reference detergent . 34

– 4 – IEC 60335-2-122:2023 © IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-122: Particular requirements for commercial washing machines

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 60335-2-122 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliances. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
61/7010/FDIS 61/7077/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 commercial washing
machines.
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.

– 6 – IEC 60335-2-122:2023 © IEC 2023
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 for 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.

HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-122: Particular requirements for commercial washing machines

1 Scope
This clause of Part 1 is replaced by the following:
This part of IEC 60335 deals with the safety of electrically operated commercial washing
machines, their rated voltage being not more than 250 V for single phase and 480 V for other
appliances.
These appliances are not intended for household and similar purpose. They are used:
– by experts or instructed persons for commercial washing in areas not open to the public, for
example on farms and in hotels, hospitals, restaurants and canteens; or
– by laymen in areas open to the public, for example launderettes and communal laundry
rooms.
The electrical part of appliances making use of other forms of energy is also within the scope
of this standard.
These appliances are designed to be connected to hot or cold water supply.
Appliances making use of steam or hot water for heating purposes are also within the scope of
this standard.
As far as is practicable, this standard deals with the common hazards presented by these types
of appliances. However, in general, it does not consider young children playing with the
appliance.
Attention is drawn to the fact that:
– for appliances intended to be used in vehicles or on board ships or aircraft, additional
requirements can be necessary;
– in many countries, additional requirements are specified by the national health authorities,
the national authorities responsible for the protection of labour, the national water supply
authorities and similar authorities;
– in many countries, additional requirements are specified for appliances incorporating
pressurized parts;
– for appliances having additional functions (e.g. drying function), other standards are also
applicable.
This standard does not apply to:
– appliances designed exclusively for industrial purposes (ISO 10472-2);
– 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);
– washing machines appliances for household and similar use (IEC 60335-2-7).

– 8 – IEC 60335-2-122:2023 © IEC 2023
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
IEC 60204-1, Safety of machinery – Electrical equipment of machines – Part 1: General
requirements
IEC 60584-1, Thermocouples – Part 1: EMF specifications and tolerances
IEC 60730-2-12:2015, Automatic electrical controls – Part 2-12: Particular requirements for
electrically operated door locks
IEC 61010-1:2010 , Safety requirements for electrical equipment for measurement, control, and
laboratory use − Part 1: General requirements
IEC 61010-1:2010/AMD1:2016
ISO 1817:2022, Rubber, vulcanized or thermoplastic – Determination of the effect of liquids
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 of the appliance under the following conditions:
The appliance is filled with textile material having a mass in the dry condition equal to the
maximum mass stated in the instructions, and with the maximum quantity of water for which it
is constructed. However, if the power input or current is higher when only 50 % of the textile
material is used, the appliance is operated with this load instead.
The temperature of the incoming water is:
– 65 °C ± 5 °C or the temperature indicated in the instructions, whichever is higher, for
appliances without heating elements,
– 15 °C ± 5 °C for other appliances or for appliances without heating elements and intended
for connection to the cold water supply only.
If the appliance does not incorporate a programmer, the water is heated to 90 °C ± 5 °C or as
high as the construction will allow if lower, before starting the first washing period.
The textile material consists of pre-washed double-hemmed cotton sheets having dimensions
2 2
approximately 70 cm × 70 cm and a specific mass between 140 g/m and 175 g/m in the dry
condition.
For impeller washing machines, if the textile material does not move properly during operation,
– the quantity of textile material may be reduced until the maximum power input of the motor
is attained, or
___________
There exists a consolidated version 3.1:2017 that includes IEC 61010-1:2010 and its Amendment 1:2016.

– a textile material comprising pre-washed double-hemmed cotton sheets, having dimensions
2 2
of approximately 90 cm × 90 cm and a mass between 90 g/m and 110 g/m in the dry
condition, may be used.
However, for impeller washing machines, in case of doubt, the test should be carried out
using the reduced quantity of textile material.
Appliances with steam generators intended to be filled by hand or by a manually operated tap
are filled to the indicated level on the steam generator.
Appliances with steam generators intended to be filled automatically are connected to a water
supply having the maximum pressure indicated by the manufacturer. Where the manufacturer
specifies a range of pressures, the pressure is adjusted to give the most unfavourable
conditions.
The incoming water of appliances with steam generators is maintained at
– 15 °C ± 5 °C in the case of appliances intended for connection to a cold water supply;
– 60 °C ± 5 °C or the temperature indicated in the instructions, whichever is higher, in the
case of appliances intended for connection to a hot water supply only.
If the appliance is intended for connection to either a hot or cold water supply, the temperature
of the water is that which gives the most unfavourable results.
3.5 Definitions relating to types of appliances
3.5.101
washing machine
appliance for cleaning and rinsing of textiles using water which can also have a means of
extracting excess water from the textiles
3.5.102
agitator washing machine
washing machine in which the textiles are substantially immersed in the washing water, the
mechanical action being produced by a device moving about or along its vertical axis with a
reciprocating motion (an agitator)
Note 1 to entry: This device usually extends above the maximum water level.
3.5.103
drum washing machine
washing machine in which the textiles are placed in either a horizontal drum or a drum that is
inclined up to and including 45° from the horizontal and the textile is partially immersed in the
washing water, the mechanical action being produced by rotation of the drum about its axis, the
movement being either continuous or periodically reversed
3.5.104
impeller washing machine
washing machine in which the textiles are substantially immersed in the washing water, the
mechanical action being produced by a device rotating about its axis continuously or which
reverses after a number of revolutions (an impeller)
Note 1 to entry: The uppermost point of this device is substantially below the minimum water level.
3.5.105
water extraction
function by which water is removed from textiles by centrifugal force
Note 1 to entry: This is usually included as a function of a washing machine.

– 10 – IEC 60335-2-122:2023 © IEC 2023
3.6 Definitions relating to parts of an appliance
3.6.101
steam generator
that part of the appliance designed specifically for the generation of steam for exclusive use in
a washing compartment
3.8 Definitions relating to miscellaneous matters
3.8.101
area open to the public
area in which the general public, including vulnerable people and children, can have access
Note 1 to entry: Examples are launderettes, communal laundry rooms.
4 General requirement
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows:
5.2 Modification:
Replace the second and third sentence of the first paragraph with the following:
The relevant tests of 21.101, 21.102 and 22.104 shall be carried out on the same appliance as
that used for the test of Clause 18.
5.3 Addition:
The test of 15.101 is carried out before the test of 15.3.
The relevant tests of 21.101 and 21.102 are carried out before the test of Clause 18. The test
of 22.104 is carried out after the test of Clause 18.
5.7 Addition:
Doubt is considered to exist if the temperature of the water is within 6 K of the boiling point and
the difference between the temperature rise of the relevant part and the limit specified does not
exceed 25 K minus the room temperature.
6 Classification
This clause of Part 1 is applicable except as follows:
6.1 Modification:
Replace the first paragraph with the following:
Appliances shall be class I.
6.2 Addition:
Appliances shall be at least IPX4.
7 Marking and instructions
This clause of Part 1 is applicable except as follows:
7.1 Addition:
Appliances shall be marked in addition with:
– the maximum mass of dry cloth, in kilograms, to be used in the appliance, unless this is
indicated in the instructions,
– the water supply pressure or range of pressures, in kilopascals (kPa), for appliances
intended to be connected to a water supply, unless this is indicated in the instructions,
– the maximum permissible external steam supply pressure, in kilopascals (kPa), unless this
is indicated in the instructions,
– the maximum permissible water and external steam supply temperatures in degrees Celsius,
unless this is indicated in the instructions.
Appliances without automatic water level control shall be marked with the maximum water level.
Appliances not intended for connection to the hot water supply and not provided with heating
elements shall be marked with the substance of the following:
CAUTION: Do not connect to the hot water supply
7.10 Addition:
If the off position is only indicated by letters, the word "off" shall be used.
7.12 Addition:
The instructions shall indicate if the appliance is also intended to be used in an area open to
the public. If the appliance is not intended to be used in an area open to the public, the
instruction shall include the substance of the following warning:
WARNING This appliance shall not be installed where the public has access
The instructions shall specify the maximum mass of dry cloth in kilograms to be used in the
appliance.
Modification:
For appliances not intended to be used in an area open to the public, the instructions
concerning persons (including children) with reduced physical, sensory or mental capabilities,
or lack of experience and knowledge and children playing with the appliance is not applicable.
7.12.1 Addition:
For appliances having ventilation openings, the installation instructions shall state that the
openings shall not be obstructed.
7.15 Addition:
The caution relating to connection to the hot water supply shall be on the appliance at its point
of attachment to the water supply.

– 12 – IEC 60335-2-122:2023 © IEC 2023
8 Protection against access to live parts
This clause of Part 1 is applicable.
9 Starting of motor-operated appliances
This clause of Part 1 is not applicable.
10 Power input and current
This clause of Part 1 is applicable except as follows:
10.1 Addition:
The selected representative period is the period, such as filling with water, washing, rinsing,
water extraction, spinning or braking, during which the power input is the highest.
10.2 Addition:
The selected representative period is the period, such as filling with water, washing, rinsing,
water extraction, spinning or braking, during which the current input is the highest.
11 Heating
This clause of Part 1 is applicable except as follows:
11.3 Addition:
Where the external accessible surfaces are suitably flat and access permits, then the test
probe of Figure 101 is used to measure the temperature rises of external accessible surfaces
specified in Table 101 and Table 102. The probe is applied with a force of 4 N ± 1 N to the
surface in such a way that the best possible contact between the probe and the surface is
ensured. The measurement is performed after a contact period of 30 s.
The probe may be held in place using a laboratory stand clamp or similar device. Any measuring
instrument giving the same results as the probe may be used.
11.7 Modification:
Replace the first paragraph with the following:
Appliances incorporating a programmer are operated with the programme that results in highest
temperature rises,
Appliances incorporating a timer or other time-limiting control are operated in cycles. Each cycle
comprises an operating period having a duration equal to the maximum time that can be
provided by the control and a rest period of 4 min, including any braking time, during which the
appliance is reloaded.
The test may be ended if the temperature rise of any part does not exceed the value determined
during the preceding cycle by more than 8 K.
Other appliances are operated with a rest period of 4 min, including any braking time, between
cycles until steady conditions are established. Each cycle consists of the following operations:

– for appliances without means for water washing;
extraction,
– for appliances having a single drum for washing followed by water extraction;
washing and water extraction,
– for appliances having separate drums for washing and water extraction separated by
washing and water extraction that cannot an additional 4 min rest period;
be used simultaneously,
– for appliances having separate drums for washing together with water extraction so
washing and water extraction that can be that the operations terminate simultaneously;
used simultaneously,
– for appliances having a single drum for
washing, water extraction and drying
• that allow the same quantity of textile washing followed by water extraction,
material to be washed and dried in the followed by drying;
drum,
• that, according to the instructions, only washing followed by water extraction
allow a portion of the washed textile followed by two drying periods, with an
material to be dried in the drum, additional rest period of 4 min before each
drying period. In this case only two cycles of
operation are carried out.
For appliances incorporating a timer, the washing period, the water extraction period and the
drying period are equal to the maximum period allowed by the timer.
11.8 Addition:
During the test, the temperature rises of external accessible surfaces of the appliance shall
not exceed the values shown in Table 101. The temperature rises of external accessible
surfaces of appliances intended for use in areas open to the public shall not exceed the
values shown in Table 102.
– 14 – IEC 60335-2-122:2023 © IEC 2023
Table 101 – Maximum temperature rises for specified external
accessible surfaces under normal operating conditions
a, b
Temperature rise of external accessible surfaces
Surface
K
Bare metal 48
c
Coated metal
Glass and ceramic 65
d, e
Plastic and plastic coating > 0,4 mm
NOTE The temperature rise limits of handles, knobs, grips, keyboards, keypads, handles and similar parts are
specified in Table 3.
a
Temperature rises are not measured on:
– the underside of appliances intended to be used on the floor;
– the rear surface of appliances;
– surfaces that are inaccessible to a 75 mm diameter probe having a hemispherical end;
– hot water supply fittings and hoses.
b
For surfaces within 25 mm from air outlets, the values may be increased by 10 K.
c
Metal is considered coated when a coating having a minimum thickness of 90 µm made of enamel, powder or
non-substantially plastic coating is used.
d
The temperature rise limit of plastic also applies for plastic material having a metal finish of thickness less than
0,1 mm.
e
When the thickness of the plastic coating does not exceed 0,4 mm, the temperature rise limits of coated metal
for underlying metal apply or the temperature rise limits for glass or ceramic material for underlying glass or
ceramic material apply.
Table 102 – Maximum temperature rises of external accessible surfaces
for appliances intended to be installed in areas open to the public
under normal operating conditions
a, b
Temperature rise of external accessible surfaces
Surface
K
Appliances and parts Appliances and parts

situated not more than situated more than 850 mm
850 mm above the floor after above the floor after
installation installation
Bare metal 38 42
c
42 49
Coated metal
Glass and ceramic 51 56
d, e
58 62
Plastic and plastic coating > 0,4 mm
NOTE The temperature rise limits of handles, knobs, grips, keyboards, keypads, handles and similar parts are
specified in Table 3.
a
Temperature rises are not measured on:
– the underside of appliances intended to be used on the floor;
– the rear surface of appliances;
– surfaces that are inaccessible to a 75 mm diameter probe having a hemispherical end;
– hot water supply fittings and hoses.
b
For surfaces within 25 mm from air outlets the values may be increased by 10 K.
c
Metal is considered coated when a coating having a minimum thickness of 90 µm made of enamel, powder or
non-substantially plastic coating is used.
d
The temperature rise limit of plastic also applies for plastic material having a metal finish of thickness less than
0,1 mm.
e
When the thickness of the plastic coating does not exceed 0,4 mm, the temperature rise limits of coated metal
for underlying metal apply or the temperature rise limits for glass or ceramic material for underlying glass or
ceramic material apply.
12 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:
13.2 Modification:
Replace the last two dashed items in the eighth paragraph with the following:
– for cord and plug connected appliances 3,5 mA or 1 mA per kW rated power input of
the appliance with a maximum of 10 mA,
whichever is higher
– for other appliances 3,5 mA or 1 mA per kW rated power input of
the appliance with a maximum of 15 mA,
whichever is higher
– 16 – IEC 60335-2-122:2023 © IEC 2023
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 Replacement:
Appliances shall be constructed so that spillage of liquid in normal use does not affect their
electrical insulation even if an inlet valve fails to close.
Compliance is checked by the following test.
Appliances with type X attachment, except those having a specially prepared cord, are fitted
with the lightest permissible type of flexible cord of the smallest cross-sectional area specified
in Table 13.
Appliances intended to be filled with water by the user are completely filled with water containing
approximately 1 % NaCl and 0,6 % rinsing agent. A further quantity of this spillage solution
equal to 15 % of the capacity of the appliance or 0,25 l, whichever is greater, is poured in
steadily over a period of 1 min.
Any commercially available non-ionic rinsing agent may be used, but if there is any doubt with
regards to the test results, the rinsing agent shall have the following properties:
– viscosity,17 mPa·s;
– pH, 2,2 (1 % in water);
– and its composition shall comprise the following substances:
• 15,0 % parts by mass
Plurafac ® LF 221
• Cumene sulfonate (40 % solution) 11,5 % parts by mass
• Citric acid (anhydrous) 3,0 % parts by mass
• Deionized water 70,5 % parts by mass

Other appliances are operated until the maximum water level is reached, and 5 g of the
detergent specified in Annex AA is added for each litre of water in the appliances. Each inlet
valve is held open and the filling continued for 15 min after first evidence of overflow or until
the inflow is automatically stopped by other means. The appropriate tests being applied one at
a time to each inlet valve.
For appliances that are loaded from the front, each door is then opened if this can be achieved
manually and without damage to the door interlock system.
Appliances, other than built-in appliances, are tilted at an angle of up to 2° to the position of
normal use in the direction which is likely to be the most unfavourable for this test.
The appliance is disconnected from the supply and the controls are set to the on position.
___________
Plurafac ® LF 221 is the trade name of a product supplied by BASF. This information is given for the convenience
of users of this document and does not constitute an endorsement by IEC of this product.

From a height of approximately 50 mm, 0,5 l of the spillage solution is poured uniformly in
approximately 60 s over any surface of the appliance with less than 2° inclination to the
horizontal. Only surfaces measuring more than 60 mm in at least one direction and less than
2,2 m above the floor are taken into consideration.
The controls are then operated through their working range, this operation being repeated after
a period of 5 min.
For appliances having a working surface, the test is repeated with the appliance tilted at an
angle of 2° in relation to the position of normal use in the direction which is likely to be the most
unfavourable.
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