IEC 60335-2-84:2019

IEC 60335-2-84 ®
Edition 3.0 2019-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-84: Particular requirements for toilets appliances

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IEC 60335-2-84 ®
Edition 3.0 2019-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –

Part 2-84: Particular requirements for toilets appliances

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 91.140.70 ISBN 978-2-8322-7585-6

– 2 – IEC 60335-2-84:2019 RLV  IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 2
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
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 Void . 13
13 Leakage current and electric strength at operating temperature . 13
14 Transient overvoltages . 13
15 Moisture resistance . 13
16 Leakage current and electric strength . 14
17 Overload protection of transformers and associated circuits . 14
18 Endurance . 14
19 Abnormal operation . 14
20 Stability and mechanical hazards . 15
21 Mechanical strength . 15
22 Construction . 16
23 Internal wiring . 17
24 Components . 18
25 Supply connection and external flexible cords . 18
26 Terminals for external conductors . 18
27 Provision for earthing . 18
28 Screws and connections . 19
29 Clearances, creepage distances and solid insulation . 19
30 Resistance to heat and fire . 19
31 Resistance to rusting . 19
32 Radiation, toxicity and similar hazards . 20
Annexes . 22
Annex R (normative) Software evaluation . 22
Bibliography . 22

Figure 101 – Diagram for leakage current measurement for water heaters having bare
heating elements . 21

Table 101 – Maximum normal temperature rises . 13
Table 102 – Maximum abnormal temperature rises . 15

– 4 – IEC 60335-2-84:2019 RLV  IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-84: Particular requirements for toilets appliances

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment
declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard
IEC 60335-2-84 has been prepared by IEC technical committee 61: Safety of household and similar electrical
appliances.
This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. A vertical bar appears in the margin wherever a change has
been made. Additions are in green text, deletions are in strikethrough red text.

This third edition cancels and replaces the second edition published in 2002,
Amendment 1:2008 and Amendment 2:2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– definitions have been renumbered (Clause 3);
– requirements for installation instructions have been updated to reflect the option in 7.101 of
the label being placed on the appliance (7.12.1);
– some notes have been converted to normative text (7.101, 22.103, 27.1, 31);
– requirements have been added for appliances that have programmable electronic circuits
that limit the number of heating elements and motors from being energized at the same time
(22.105, Annex R).
The text of this International Standard is based on the following documents:
CDV Report on voting
61/5749/CDV 61/5846B/RVC
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fifth edition (2010) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to convert
that publication into the IEC standard: Safety requirements for toilet appliances.
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.

– 6 – IEC 60335-2-84:2019 RLV  IEC 2019
The committee has decided that the contents of this publication will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
NOTE 4 The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of 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.
– 3.1.9: Normal operation is different (USA);
– 6.2: Toilets, spray seats and heated seats are allowed to be IPX3（Japan);
– 22.103: The test is different (USA).

IMPORTANT – The 'colour inside' logo on the cover page of this publication 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.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in normal
use taking into account the manufacturer's instructions. It also covers abnormal situations that
can be expected in practice and takes into account the way in which electromagnetic
phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that there
is compatibility with the wiring rules when the appliance is connected to the supply mains.
However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
When a part 2 standard does not include additional requirements to cover hazards dealt with in
Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal and generic standards covering a hazard are not applicable since they have been taken into
consideration when developing the general and particular requirements for the IEC 60335 series of standards. For
example, in the case of temperature requirements for surfaces on many appliances, generic standards, such as
ISO 13732-1 for hot surfaces, are not applicable in addition to Part 1 or part 2 standards.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of the
requirements and, if found to be substantially equivalent, may be considered to comply with the
standard.
– 8 – IEC 60335-2-84:2019 RLV  IEC 2019
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-84: Particular requirements for toilets appliances

1 Scope
This clause of Part 1 is replaced by the following.
This part of IEC 60335 deals with the safety of electric toilets appliances having a rated voltage
being not more than 250 V, in which excrement is stored, dried or destructed, their rated
voltage being not more than 250 V or which wash or dry parts of the human body.
NOTE 101 Examples of such electric toilets may are the following and they can be used to process garbage such
as paper and food waste.
– mouldering toilets;
– package toilets;
– freezing toilets;
– vacuum toilets.
This standard also applies to electric equipment for use with conventional toilets.
NOTE 102 Examples of such electric equipment are
– automatic seat covering devices;
– chopping units;
– heated seats;
– pumping units;
– water heaters for shower units spray seats;
– spray seats.
As far as is practicable, this standard deals with the common hazards presented by appliances
that are encountered by all persons in and around the home. However, in general, it does not
take into account young children playing with the appliance.
NOTE 103 Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may 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.
NOTE 104 This standard does not apply to
– appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive
or explosive atmosphere (dust, vapour or gas);
– chemical toilets;
– toilets in which excrement is destructed by combustion.
2 Normative references
This clause of Part 1 is applicable except as follows.

Addition:
IEC 60068-2-52, Environmental testing – Part 2: Test methods – Test Kb: Salt mist, cyclic
(sodium chloride solution)
IEC 60068-2-52:1996 , Environmental testing – Part 2-52: Tests – Test Kb: Salt mist, cyclic
(sodium chloride solution)
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
3.1 Definitions relating to physical characteristics
3.1.9 Replacement:
normal operation
operation of the appliance under the following conditions:
Appliances are operated in cycles, each cycle being initiated every 10 min, bowl covers being
open or closed, whichever is more unfavourable. If the cycle is not automatically terminated,
the appliance is operated for 15 s, or for the period specified in the instructions, whichever is
longer.
For spray seats, if the cycle is not automatically terminated, the appliance is operated for 30 s.
If the cycle is automatically terminated, the appliance is operated for 30 s or automatic operation
time, whichever is shorter.
If warm air is provided for drying and if the cycle is not automatically terminated, the appliance
is operated for 1 min. If the cycle is automatically terminated, the appliance is operated for
1 min or automatically terminating time, whichever is shorter.
If warm air is provided for drying, the drying cycle is initiated immediately after the end of the
showering cycle, unless the sequence is automatic.
The excrement tank of mouldering toilets is empty or filled with peat, whichever is more
unfavourable.
Package toilets are provided with bags.
For freezing toilets, 0,3 l of water having a temperature of 37 °C is added each cycle, controls
being adjusted to the lowest temperature. They are also operated without water.
Shower units Spray seats are supplied with water at the most unfavourable pressure that
provides an effective spray.
3.5 Definitions relating to types of appliances
3.5.101
mouldering toilet
appliance in which excrement is processed by drying
—————————
This 2nd edition was replaced in 2017 by a 3rd Edition IEC 60068-2-52:2017, Environmental testing – Part 2-52:
Tests – Test Kb: Salt mist, cyclic (sodium chloride solution) but the listed edition applies.

– 10 – IEC 60335-2-84:2019 RLV  IEC 2019
3.5.102
package toilet
appliance in which excrement is packed in bags and stored in a tank
3.5.103
freezing toilet
appliance in which excrement is frozen and stored in a tank
3.5.104
vacuum toilet
appliance in which excrement is evacuated to a storage tank by negative pressure
3.105
shower unit
device incorporated in the appliance that sprays water for cleaning parts of the human body
NOTE Shower units may subsequently supply warm air for drying. The units may be incorporated in the seat or
bowl.
3.5.105
spray seat
appliance that sprays water for cleaning parts of the human body
Note 1 to entry: Spray seats can have functions such as heating the seat, drying, deodorizing or automatically
opening/closing the seat and the bowl cover.
Note 2 to entry: Spray seats can be integrated with a toilet.
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 Addition:
The tests of 31.101 are not carried out on a separate appliance.
5.3 Addition:
The tests of 31.101 are carried out before the test of Clause 8.
5.7 Addition:
The temperature of the water used for the tests is 15 °C ± 5 °C.
6 Classification
This clause of Part 1 is applicable except as follows.
6.1 Modification:
Appliances incorporating water heaters having bare heating elements shall be class I or
class III.
Spray seats shall be class I, class II, or class III.
6.2 Addition:
Toilets, spray seats and heated seats shall be at least IPX4.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.12 Addition:
The instructions shall state how to empty and clean the toilet safely. They shall include details
about the final disposal of the excrement or its residue, unless the toilet is connected to the
sewage system.
Modification:
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
are not applicable.
7.12.1 Addition:
The installation instructions for class 0I appliances and class I appliances shall state that
they have to be earthed.
The installation instructions for appliances incorporating water heaters having bare heating
elements shall state the substance of the following:
– the resistivity of the water supply must not be less than …. Ωcm;
– the appliance must be permanently connected to fixed wiring.
The installation instructions shall state
– the maximum permissible inlet water pressure, in megapascals, for appliances intended to
be connected to the water mains;
– the minimum permissible inlet water pressure, in megapascals, if this is necessary for the
correct operation of the appliance.
The installation instructions shall state that the label concerning glowing cigarettes is to be fixed
in a conspicuous place beside the toilet (except flushing toilets).
The installation instructions for toilets, except for flushing toilets, shall state that the label
concerning glowing cigarettes is to be fixed in a conspicuous place beside or on the toilet.
7.101 Toilets, except flushing toilets, shall be provided with a label stating that glowing
cigarettes and other burning materials must not be thrown into the toilet.
The label shall be suitable for permanent fixing.
NOTE The label may be fixed on the appliance if it is visible before using the toilet.
Compliance is checked by inspection.

– 12 – IEC 60335-2-84:2019 RLV  IEC 2019
8 Protection against access to live parts
This clause of Part 1 is applicable except as follows.
8.1.1 Addition:
Test probe 18 of IEC 61032 is also applied, as specified for test probe B.
8.2 Addition:
Test probe 18 of IEC 61032 is also applied, as specified for test probe B.
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.
11.3 Addition:
Thermocouples attached to the small blackened disks are also used for measuring the
temperature rise of warm air.
11.7 Replacement:
Shower units Spray seats are operated for 2 min unless the water flow stops automatically.
Other appliances are operated until steady conditions are established.
11.8 Addition:
The temperature rises shall not exceed the values shown in Table 101.

Table 101 – Maximum normal temperature rises
Part Temperature rise
K
Surfaces likely to be in contact with the skin:
– if of metal 15
– if of other material 25
a
Warm air for drying parts of the human body

Surfaces outside the bowl located within 250 mm of the seat
Interior of the excrement tank of mouldering toilets
Ducts through which excrement passes
a
The air temperature is measured 50 mm from the air outlet.

Part Temperature rise
K
Surfaces likely to be in contact with the skin 23
a
Warm air for drying parts of the human body
Surfaces outside the bowl located within 250 mm of the seat 30
Interior of the excrement tank of mouldering toilets 60
Ducts through which excrement passes 60
a
The air temperature is measured 50 mm from the air outlet.

The temperature of the water supplied by shower units spray seats shall not exceed 45 °C.
12 Void
13 Leakage current and electric strength at operating temperature
This clause of Part 1 is applicable except as follows.
13.2 Addition:
Water heaters having bare heating elements are tested with water having the resistivity stated
in the instructions.
NOTE 101 The appropriate resistivity may can be obtained by adding ammonium phosphate to the water.
For water heaters of class I having bare heating elements, the leakage current is measured
between a metal sieve positioned 10 mm from the spray head of the shower unit spray seat
and the earthing terminal. The terminals of the heating element are connected through the
selector switch to each pole of the supply in turn, as shown in Figure 101.
The leakage current shall not exceed 0,25 mA.
14 Transient overvoltages
This clause of Part 1 is applicable.
15 Moisture resistance
This clause of Part 1 is applicable except as follows.

– 14 – IEC 60335-2-84:2019 RLV  IEC 2019
15.1.1 Addition:
It may be necessary to use the spray nozzle described in 14.2.4 b) of IEC 60529 for testing the
inside of the bowl.
16 Leakage current and electric strength
This clause of Part 1 is applicable except as follows.
16.2 Addition:
Water heaters having bare heating elements are tested with water having the resistivity stated
in the instructions.
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:
Appliances incorporating automatic controls are also subjected to the test of 19.101.
19.2 Addition:
Water heaters are tested with or without water, whichever is more unfavourable.
19.13 Addition:
The temperature rises shall not exceed the values shown in Table 102.

Table 102 – Maximum abnormal temperature rises
Part Temperature rise
K
Surfaces likely to be in contact with the skin:
– if of metal 25
– if of other material 55
a
Warm air for drying parts of the human body
Surfaces outside the bowl located within 250 mm of the seat
Interior of the excrement tank of mouldering toilets
Ducts through which excrement passes
a
The air temperature is measured 50 mm from the air outlet.

Part Temperature rise
K
Surfaces likely to be in contact with the skin:
– if of metal 36
– if of other material 55
a
Warm air for drying parts of the human body
Surfaces outside the bowl located within 250 mm of the seat 40
Interior of the excrement tank of mouldering toilets 100
Ducts through which excrement passes 100
a
The air temperature is measured 50 mm from the air outlet.

The temperature of the water supplied by shower units spray seats shall not exceed 65 °C.
19.101 The appliance is supplied at rated voltage and operated under normal operation.
Any fault conditions that can be expected in normal use are applied one at a time.
NOTE Examples of fault conditions are
– failure of thermostats;
– failure of relays;
– open-circuiting or short-circuiting of components;
– stopping programmers in any position.
20 Stability and mechanical hazards
This clause of Part 1 is applicable.
21 Mechanical strength
This clause of Part 1 is applicable except as follows.
21.1 Addition:
Compliance is also checked by the tests of 21.101 and 21.102.
21.101 The appliance is subjected to an evenly distributed force of 1 500 N applied
perpendicularly to the seat, the bowl cover being open for 10 min.
The test is repeated with the bowl cover closed.

– 16 – IEC 60335-2-84:2019 RLV  IEC 2019
A force of 250 150 N is then applied for 5 s to the front edge of the bowl cover or seat in a right
or left direction parallel to the hinges, whichever is more unfavourable. Then the bowl cover or
seat being is slowly raised and lowered. The test is carried out five times.
The bowl cover or seat is then raised and the force of 250 150 N is applied for 1 min to its front
edge in a direction perpendicular to its plane. For spray seats and heated seats that are
installed onto the toilet bowl or integrated with the toilet bowl, the force of 150 N is applied, and
the bowl cover is lifted to less than an angle of 120°. If detachable parts are removed, no more
force is applied.
The appliance shall not be damaged to such an extent that compliance with 8.1, 15.1, 16.3,
27.5 and Clause 29 is impaired.
21.102 The excrement tank is completely filled with water and the appliance placed in a room
having a temperature of approximately –15 °C. When the water is completely frozen, the
appliance is allowed to warm up until the ice has melted. The test is carried out three times.
The appliance shall not be damaged to such an extent that compliance with 8.1, 15.1, 16.3 and
27.5 is impaired.
21.103 Spray seats, heated seats, enclosures and seats shall have adequate mechanical
strength and be constructed to withstand repeated mechanical stresses that may be expected
to occur during normal use.
Compliance is checked by the tests of 21.103.1 and 21.103.2.
21.103.1 The appliance is subjected to an evenly distributed force of 1 250 N applied
perpendicularly to the seat for 4 s by a rubber disc having a thickness of 10 mm, a diameter of
300 mm and a shore A hardness of 70°, with a steel disc having a thickness of 5 mm and a
diameter of 300 mm attached on its upper surface. The test is carried out 20 000 times.
The appliance shall not be damaged to such an extent that compliance with 8.1, 15.1, 16.3,
27.5 and Clause 29 is impaired.
21.103.2 The appliance is subjected to an evenly distributed force of 890 N applied
perpendicularly on each side of the seat for 1 s with a 0,5 s interval by a rubber disc having a
thickness of 19 mm, a diameter of 76 mm and a shore A hardness of 70°. The test is carried
out 10 000 cycles. One cycle consists of applying the force to one side and the other.
The appliance shall not be damaged to such an extent that compliance with 8.1, 15.1, 16.3,
27.5 and Clause 29 is impaired.
22 Construction
This clause of Part 1 is applicable except as follows.
22.2 Modification:
Class I appliances shall not incorporate an appliance inlet.
22.24 Replacement:
Appliances shall not incorporate bare heating elements located in excrement tanks or as water
heaters for spray seats.
Compliance is checked by inspection.

22.33 Modification:
Liquids may be in direct contact with live parts of bare heating elements and may be heated
using electrodes.
22.48 Addition:
If a dynamic backflow preventer is used, the critical level shall be located not less than 25 mm
above the fixture rim flood level.
22.101 Toilets shall be fixed appliances.
Compliance is checked by inspection.
22.102 Metal parts in contact with skin and which support the body in normal use shall not be
earthed be of class II construction.
This requirement does not apply if the metal parts in contact with skin and which support the
body in normal use are earthed and permanently connected to the fixed wiring.
Compliance is checked by inspection and, if necessary, by the relevant tests.
22.103 Appliances shall be constructed so that live parts are protected from exposure to
excrement.
Compliance is checked by inspection and, if rubber seals are used, by the following test.
The seal is immersed for 24 h in mineral oil having a temperature of 100 °C ± 2 °C. After the
test, the volume of the seal shall not have increased by more than 50 %.
NOTE The oil has shall have the following properties:
– aniline point, 93 °C ± 3 °C;
– viscosity, (20 ± 1) cSt at 100 °C;
– flash point, 245 °C ± 6 °C.
22.104 Vacuum toilets shall be constructed so that they cannot be flushed unless the bowl
cover is closed.
Compliance is checked by manual test.
22.105 Appliances shall withstand the water pressure expected in normal use.
Compliance is checked by connecting the appliance to a water supply having a pressure equal
to twice the maximum permissible inlet water pressure or 1,2 MPa, whichever is higher, for a
period of 5 min.
There shall be no leakage.
For appliances that are controlled by programmable electronic circuits that limit the number
of heating elements and motors from being energized at the same time, simultaneous activation
of any combination of heating elements and motors shall not render the appliance unsafe.
Compliance is checked as follows:

– 18 – IEC 60335-2-84:2019 RLV  IEC 2019
– the fault/error conditions specified in Table R.1 are applied and evaluated in accordance
with the relevant requirements of Annex R; or
– the appliance is operated under the conditions of Clause 11 while being supplied at rated
voltage, the programmable electronic circuits being modified to allow simultaneous
activation of all heaters and motors under their control.
Under these conditions, compliance with 19.13 shall be fulfilled.
23 Internal wiring
This clause of Part 1 is applicable except as follows.
23.3 Modification:
For heated seats, the number of flexings is 50 000.
23.5 Addition:
Internal wiring supplying parts in the excrement tank at safety extra-low voltage shall not be
lighter than ordinary polyvinyl chloride sheathed cord (code designation 60227 IEC 53).
24 Components
This clause of Part 1 is applicable except as follows.
24.101 Thermal cut-outs incorporated in appliances for compliance with 19.4 or 19.101 shall
not be self-resetting. This requirement is not applicable to spray seats when a thermal link for
compliance with 19.13 is connected in series with a thermal cut-out with an operating
temperature not exceeding 65 °C, in 19.13.
Compliance is checked by inspection.
25 Supply connection and external flexible cords
This clause of Part 1 is applicable except as follows.
25.3 Addition:
Appliances incorporating water heaters having bare heating elements shall only be provided
with means for connection to fixed wiring.
26 Terminals for external conductors
This clause of Part 1 is applicable.
27 Provision for earthing
This clause of Part 1 is applicable except as follows.
27.1 Addition:
For class I appliances incorporating water heaters having bare heating elements, the water
shall enter and leave through metal pipes that are permanently and reliably connected to the
earthing terminal or flow over metal parts that are similarly earthed.
NOTE 102 Parts that are liable to be in contact with excrement are considered to be accessible.
NOTE 101 Examples of such metal parts are grids or rings.
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 except as follows.
29.2 Addition:
The microenvironment is pollution degree 3 unless the insulation is enclosed or located so that
it is unlikely to be exposed to pollution during normal use of the appliance.
30 Resistance to heat and fire
This clause of Part 1 is applicable except as follows.
30.2.2 Not applicable.
30.2.3.1 Modification:
The specified glow-wire flammability index is not applicable to water heaters having bare
heating elements.
30.2.3.2 Modification:
For water heaters having bare heating elements, the glow-wire test is carried out as specified
for other connections.
30.101 The bowl shall not incorporate combustible material.
Compliance is checked by subjecting non-metallic material to the needle-flame test of Annex E.
The test is not carried out if the material is classified as V-0 according to IEC 60695-11-10,
provided that the test sample was no thicker than the relevant part.
31 Resistance to rusting
This clause of Part 1 is applicable except as follows.
Addition:
Compliance is checked by the salt mist test of IEC 60068-2-52, severity 2 being applicable.

– 20 – IEC 60335-2-84:2019 RLV  IEC 2019
Before the test, coatings are scratched by means of a hardened steel pin, the end of which has
the form of a cone with an angle of 40°. Its tip is rounded with a radius of 0,25 mm ± 0,02 mm.
The pin is loaded so that the force exerted along its axis is 10 N ± 0,5 N. The scratches are
made by drawing the pin along the surface of the coating at a speed of approximately 20 mm/s.
Five scratches are made at least 5 mm apart and at least 5 mm from the edges.
During the test, metal parts that may be contacted by excrement shall be exposed to the salt
mist.
After the test, the appliance shall not have deteriorated to such an extent that compliance with
this standard, in particular with Clauses 8 and 27, is impaired. The coating shall not be broken
and shall not have loosened from the metal surface.
NOTE 101 It has to be ensured that metal parts in contact with excrement are exposed to the salt mist.
31.101 Toilet appliances shall have adequate resistance to cleaners and urine.
Compliance is checked by the following tests.
The following tests are separately applied to appliances unless electrical parts are enclosed or
located so that they are unlikely to be exposed to the pollution atmosphere.
The appliance is kept for 96 h in a 0,055 % ± 0,005 % intensity by volume ammoniac
atmosphere at room pressure.
The appliance is then kept for 96 h in a 0,000 5 % ± 0,000 2 % intensity by volume hydrochloric
acid atmosphere at room pressure.
The appliance shall show no damage that could impair compliance with this standard.
32 Radiation, toxicity and similar hazards
This clause of Part 1 is applicable.

Dimension in millimetres
Key
A inlet pipe
B spray head
C circuit of Figure 4 of IEC 60990:1999
D metal sieve
E earthing terminal
F body of the water heater
G selector switch
Figure 101 – Diagram for leakage current measurement for
water heaters having bare heating elements

– 22 – IEC 60335-2-84:2019 RLV  IEC 2019
Annexes
The annexes of Part 1 are applicable, except as follows.
Annex R
(normative)
Software evaluation
R.2.2.5 Modification:
For programmable electronic circuits with functions requiring software incorporating measures
to control the fault/error conditions specified in Table R.1, detection or a fault/error shall occur
before compliance with Clause 19 and 22.105 is impaired.
R.2.2.9 Modification:
The software and safety-related hardware under its control shall be initialized and shall
terminate before compliance with Clause 19 and 22.105 is impaired.

Bibliography
The bibliography of Part 1 is applicable.

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IEC 60335-2-84 ®
Edition 3.0 2019-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-84: Particular requireme
...