IEC 60335-2-116:2019

IEC 60335-2-116 ®
Edition 1.0 2019-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-116: Particular requirements for furniture with electrically motorised parts

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-116: Exigences particulières pour les meubles avec des parties
électriquement motorisées
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IEC 60335-2-116 ®
Edition 1.0 2019-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –

Part 2-116: Particular requirements for furniture with electrically motorised parts

Appareils électrodomestiques et analogues – Sécurité –

Partie 2-116: Exigences particulières pour les meubles avec des parties

électriquement motorisées
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.120; 97.140 ISBN 978-2-8322-7628-0

– 2 – IEC 60335-2-116:2019 © IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 7
4 General requirement . 8
5 General conditions for the tests . 8
6 Classification . 9
7 Marking and instructions . 9
8 Protection against access to live parts . 10
9 Starting of motor-operated appliances . 10
10 Power input and current . 10
11 Heating . 11
12 Void . 11
13 Leakage current and electric strength at operating temperature . 11
14 Transient overvoltages . 11
15 Moisture resistance . 11
16 Leakage current and electric strength . 11
17 Overload protection of transformers and associated circuits . 11
18 Endurance . 11
19 Abnormal operation . 11
20 Stability and mechanical hazards . 12
21 Mechanical strength . 15
22 Construction . 15
23 Internal wiring . 16
24 Components . 16
25 Supply connection and external flexible cords . 16
26 Terminals for external conductors . 16
27 Provision for earthing . 16
28 Screws and connections . 16
29 Clearances, creepage distances and solid insulation . 16
30 Resistance to heat and fire . 17
31 Resistance to rusting . 17
32 Radiation, toxicity and similar hazards . 17
Annexes . 18
Annex R (normative) Software evaluation . 19
Bibliography . 20

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-116: Particular requirements for furniture
with electrically motorised parts

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-
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with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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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
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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 60335-2-116 has been prepared by IEC technical committee 61:
Safety of household and similar electrical appliances.
The text of this International Standard is based on the following documents:
FDIS Report on voting
61/5929/FDIS 61/5945/RVD
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.

– 4 – IEC 60335-2-116:2019 © IEC 2019
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. 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 furniture with
electrically motorised parts.
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 "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document 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.

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 only covers the risks associated with electrically motorized parts 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 such appliances. It does not
cover risks associated with furniture containing heating elements.
Other safety aspects of furniture with and without electrically motorised parts are covered by
the standards developed by ISO TC 136.
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.

– 6 – IEC 60335-2-116:2019 © IEC 2019
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-116: Particular requirements for furniture
with electrically motorised parts

1 Scope
This clause of Part 1 is replaced by the following.
This part of IEC 60335 deals with the safety of furniture with electrically motorized parts
intended for household and similar purposes, their rated voltage being not more than 250 V.
Furniture incorporating electrically motorised parts not intended for normal household use but
which nevertheless may be a source of danger to the public, such as furniture intended to be
used by laymen in shops, offices, hotels, restaurants, cinemas, hospitals, schools, in light
industry and on farms, are within the scope of this standard.
NOTE 101 Examples of furniture incorporating electrically motorised parts, are
– electrically operated/height adjustable tables and desks;
– electrically operated/adjustable stands and wall attachment for e.g.TV sets and monitors;
– electrically operated/adjustable seating;
– beds with incorporated ventilators and filters;
– electrically operated/adjustable beds;
– electrically operated/adjustable storage units including kitchen units;
– electrically operated/adjustable furniture intended to be secured to the wall or ceiling;
– electrically operated extension elements (drawers and doors);
– electric check-out furniture in hotels and shops;
– furniture delivered in parts (ready to assemble or knock-down furniture).
This standard deals with the reasonably foreseeable hazards presented by furniture
incorporating electrically motorised parts that are encountered by all persons. However, in
general, it does not take into account
– persons whose physical, sensory or mental capabilities; or lack of experience and
knowledge prevents them from using the furniture incorporating electric appliances, parts
or components safely without supervision or instruction;
– children playing with furniture incorporating electrically motorised parts.
NOTE 102 Attention is drawn to the fact that
– for furniture incorporating electrically motorised parts 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 authorities for fire protection and similar
authorities.
NOTE 103 This standard does not apply to
– furniture containing heating elements;
– electrically operated hospital beds (IEC 60601-2-52);
– electrical wheel chairs;
– special furniture incorporating electric appliances, parts or components, which are part of industrial production
equipment;
– cupboards for building in appliances like a dishwasher;

– electric child care articles except electrical height adjustable changing (nursing) tables;
– furniture especially for use by children;
– furniture for outdoor use.
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
Replacement:
3.1.9
normal operation
operation with the appliance operating with its rated load and under the most unfavourable
conditions specified in the instructions
Where applicable, the rated load is distributed as follows.
For adjustable beds with a non-articulating frame, the rated load is evenly distributed over
the bed surface.
For adjustable articulating beds, the rated load is evenly distributed over the three separate
bed surface areas with 45 % for the head part, 25 % for the middle part and 30 % for the foot
part.
For adjustable articulating chairs without a leg rest, the rated load is evenly distributed over
the two separate chair surface areas with 35 % for the back-rest part and 65 % the seating
surface part.
For adjustable articulating chairs with a leg rest, the rated load is evenly distributed over the
three separate chair surface areas with 35 % for the back-rest part, 55 % for the seating
surface part and 10 % for the leg rest part.
For other furniture or parts of the furniture with electrically motorized parts the rated load is
evenly distributed over the load bearing surface.
3.1.101
rated duty cycle
maximum activation time (x seconds ON) followed by a minimum deactivation time (y seconds
OFF) necessary for the safe operation of the furniture assigned by the manufacturer
3.1.102
rated load
load assigned to the appliance by the manufacturer
Note 1 to entry: For beds, the mattress is considered a part of the bed construction.
3.5 Definitions relating to types of appliances
3.5.101
furniture
article intended to support human activities such as seating, eating, sleeping, working or
storing things
– 8 – IEC 60335-2-116:2019 © IEC 2019
Note 1 to entry: Examples are chairs, desks, tables, work benches, cupboards, shelves and beds.
3.6 Definitions relating to parts of an appliance
Replacement:
3.6.3
accessible part
part or surface that can be touched by means of test probe B or test probe 18 of IEC 61032,
and if the part or surface is metal, any conductive part connected to it
Note 1 to entry: Accessible non-metallic parts with conductive coatings are considered to be accessible metal
parts.
3.7 Definitions relating to safety components
3.7.101
biased-off switch
hold-to-run device which initiates and maintains the movement only as long as the manual
control is actuated
3.7.102
entrapment protection system
part of the appliance that protects against shearing, crushing or being held captive
3.7.103
impulse activation device
device which initiates the movement or terminates the movement or causes a change of the
direction of the movement
3.7.104
manual release
handle or the like which initiates manual operation of the moving parts
3.8 Definitions relating to miscellaneous matters
3.8.101
limited movement
operation where movement of a part of the appliance is made in very small steps in order to
inform the user that they have to shift their position for ergonomic reason
Note 1 to entry: This movement can be programmable and can be repeated in several series.
Note 2 to entry: When limited movement activates, the first movement and the consecutive movement does not
result in a change from the original position.
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 Furniture is tested as a motor-operated appliance.

6 Classification
This clause of Part 1 is applicable except as follows.
6.1 Modification:
Appliances shall be of type class I, class II or class III.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Addition:
Appliances shall be marked with their rated load in kg.
If different parts support loads within the same furniture, the rated load for each part shall be
marked.
Appliances shall be marked with symbol IEC 60417-5957 (2004-12) or with the substance of
the following:
For indoor use only
Appliances not intended for continuous operation shall be marked with their rated duty-cycle.
7.6 Addition:
[symbol IEC 60417-5957
for indoor use only
(2004-12)]
7.12 Addition:
The instructions shall state the substance of the following:
– disconnect the supply when carrying out maintenance and cleaning;
– examine the appliance frequently for signs of wear or damage. If there are such signs or if
the appliance has been misused or does not work, contact the supplier for further
information;
– do not allow children to play with fixed controls;
– keep remote controls away from children;
– when operating a switch that initiates and maintains the movement of the furniture or
terminates the movement of the furniture or causes a change of the direction of the
movement of the furniture, make sure that other persons are kept away.
The instructions shall also include information on the following:
– placement of furniture to avoid creating entrapment hazards with other furniture;
– details on how to use a manual release, if any;
– an explanation of different ways of controlling the movement;

– 10 – IEC 60335-2-116:2019 © IEC 2019
– information relating to cleaning and user maintenance including use of chemical cleaning
agents.
If symbol IEC 60417-5957 (2004-12) is used, its meaning shall be explained.
8 Protection against access to live parts
This clause of Part 1 is applicable, except as follows.
8.1.1 Modification:
Test probe B and test probe 18 of IEC 61032 are applied with a force not exceeding 1 N, the
appliance being in every possible position, except that appliances normally used on the floor
and having a mass exceeding 40 kg are not tilted.
Through openings, the test probe is applied to any depth that the probe will permit and is
rotated or angled before, during and after insertion to any position. If the opening does not
allow the entry of the probe, the force on the probe in the straight position is increased to
20 N when probe B is used or 10 N when probe 18 is used. If the probe then enters the
opening, the test is repeated with the probe in the angled position.
During the tests with:
– test probe B, all detachable parts are removed;
– test probe 18, the appliance shall be fully assembled as in normal use without any parts
removed.
However, test probe 18 is not applied to appliances for commercial use unless they are
intended to be installed in an area open to the public.
8.2 Modification:
Compliance is checked by inspection and by applying test probe B and test probe 18 of
IEC 61032 in accordance with the conditions specified in 8.1.1.
Test probe B and test probe 18 of IEC 61032 are applied to built-in appliances and fixed
appliances only after installation.
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 representative period is the time for an intended complete movement cycle of the driven
part.
10.2 Addition:
The representative period is the time for an intended complete movement cycle of the driven
part.
11 Heating
This clause of Part 1 is applicable except as follows.
11.7 Replacement:
Appliances for continuous operation are operated until steady conditions are established.
Appliances with a rated duty-cycle are operated in repeated cycles until steady conditions
are established. Each cycle being the rated duty-cycle.
12 Void
13 Leakage current and 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 except as follows.
15.2 Addition:
Appliances having external surfaces on which it is possible to place a vessel, such as a cup or
jug, are tested by rapidly pouring 0,5 l of the solution over the surface. If there is more than
one surface, they are tested in turn.
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.
19.7 Addition:
– 12 – IEC 60335-2-116:2019 © IEC 2019
Appliances controlled by a biased-off switch and appliances with moving parts controlled by
an impulse activation device are supplied at rated voltage for 30 s; other appliances are
supplied until steady conditions are established.
19.13 Addition:
If the appliance can still be operated, the test of 20.2.102 is carried out.
Either the appliance continues to fulfil the requirements, or, after the end position has been
reached it shall stop all functions, or the appliance shall change to a biased-off switch mode
or an impulse activation device mode.
19.101 Appliances, other than those for continuous operation, are supplied at rated voltage
and operated continuously under normal operation.
20 Stability and mechanical hazards
This clause of Part 1 is applicable except as follows.
20.1 Addition:
Appliances shall have inherent stability.
The test is carried out with or without rated load whichever is more unfavourable and with
any moving part in the most unfavourable position.
Loads are distributed or positioned in the most unfavourable position, and partial loading shall
be considered if it gives a more unfavourable condition.
The test is only carried out for appliances not intended to be fixed to a mounting surface
If, for appliances not intended to be fixed to a mounting surface, the manufacturer advices to
use an anti-tilt device, the anti-tilt device shall not be used in the test.
If furniture has 3 or more drawers the stability test is performed with 2 drawers open.
If an appliance is intended for being fixed to the wall the test is not carried out, but if the
appliance also is intended to be used free standing, the test is carried out.
20.2.101 Appliances shall operate so that the movement is not likely to cause an injury.
Entrapment between furniture and structures such as walls, pillars, floors, ceilings and other
objects, including other furniture, that are fixed in position or whose position is constrained in
some way from free movement shall not cause an injury.
Compliance is checked as follows:
– moving parts controlled by a biased-off switch by the requirement and test of 20.2.102
– moving parts controlled by impulse activation device, by the requirement and test of
20.2.103;
– moving parts controlled by a remote operation, by the requirement and test of 20.2.104;
– moving parts controlled by an entrapment protection system, by the requirement and
test of 20.2.105.
NOTE Communication between parts of the appliance can be wireless without changing the above categories.

Appliances shall be supplied at rated voltage and loaded with 1,1 times rated load. The
rated load being distributed under normal operation.
The test is repeated without a load applied.
If compliance relies on the operation of an electronic circuit, the tests are repeated under
the following conditions applied separately:
– the fault conditions in a) to g) of 19.11.2 applied one at a time to the electronic circuit;
– the electromagnetic phenomena tests of 19.11.4.2 and 19.11.4.5 applied to the appliance.
If the electronic circuit is programmable, the software shall contain measures to control the
fault/error conditions specified in Table R.1 and is evaluated in accordance with the relevant
requirements of Annex R.
20.2.102 Moving parts of the appliance controlled by a biased-off switch shall stop when its
actuating member is released.
The biased-off switch shall be fixed on the appliance or connected to the appliance via a
flexible cord.
Compliance is checked by inspection and the following tests.
The appliance is operated in one direction and when the actuating member is released, the
moving part of the appliance shall stop within a distance of movement of 10 mm. The
measurement is made at the place where the moving part has its largest movement.
The test is repeated for the movement in the opposite direction.
20.2.103 Moving parts of the appliance controlled by an impulse activation device shall not
cause an entrapment hazard.
The impulse activation device shall be fixed on the appliance or connected to the appliance
via a flexible cord.
Compliance is checked by inspection and the test of a) if the appliance has a stop function,
and any one of the tests b), c) or d).
a) The appliance is operated in one direction until the relevant stop device is activated. The
moving part of the appliance shall then stop within a distance of movement of 10 mm after
activation of the stop device. The measurement is made at the place where the moving
part has its largest movement.
The test is repeated with the movement in the opposite direction.
b) Test probes having diameters of 7 mm and 223 mm are applied without appreciable force
to openings where body parts can be entrapped with the moving parts in the most
unfavourable position within their range of movement.
The 7 mm test probe shall not enter the opening or the 223 mm test probe shall enter the
opening.
c) The force between the opposite surfaces where body parts can be entrapped, is measured
using a measuring instrument inserted between the opposite surface/leading edge of the
moving parts and the fixed parts of the appliance. The appliance is operated to move from
one end position to the other entrapping the instrument during the movement and the force
is measured along the path of the entrapment area where the moving part has its largest
movement.
– 14 – IEC 60335-2-116:2019 © IEC 2019
The force shall not exceed 150 N.
d) The appliance shall comply with the test for entrapment in 20.2.105.
20.2.104 Moving parts of the appliance controlled by a remote operation shall not cause an
entrapment hazard.
Compliance is checked by any one of the tests a), b) or c).
a) Test probes having diameters of 7 mm and 223 mm are applied without appreciable force
to openings where body parts can be entrapped with the moving parts in the most
unfavourable position within their range of movement.
The 7 mm test probe shall not enter the opening or the 223 mm test probe shall enter the
opening.
b) The force between the opposite surfaces where body parts can be entrapped, is measured
using a measuring instrument inserted between the opposite surface/leading edge of the
moving parts and the fixed parts of the appliance. The appliance is operated to move from
one end position to the other entrapping the instrument during the movement and the force
is measured along the path of the entrapment area where the moving part has its largest
movement.
The force shall not exceed 150 N.
c) The appliance shall comply with the test for entrapment in 20.2.105.
20.2.105 An entrapment protection system in the appliance shall reduce the risk of injury to
the user.
Compliance is checked by the following test.
The force between the opposite surfaces where body parts can be entrapped, is measured
using a measuring instrument inserted between the opposite surface/leading edge of the
moving parts and the fixed parts of the appliance. The appliance is operated to move from
one end position to the other entrapping the instrument during the movement and the force is
measured along the path of the entrapment area where the moving part has its largest
movement.
The forces between the opposite surfaces shall not exceed
– 400 N during the first 0,75 s after the force has exceeded 150 N;
– 150 N during a further period of 4,25 s; and
– 100 N thereafter.
20.2.106 Moving parts controlled by a limited movement shall not cause hazard.
Compliance is checked by the following test.
The stroke of the limited movement is measured along the moving path and shall be less
than 7 mm.
20.2.107 Where a manual release is provided whatever is the control system, it shall be
easy to operate. Operation of the manual release shall not give rise to a hazard such as
kickback or unexpected operation of the appliance.
Manual operation of the appliance shall not give rise to a hazard.
Compliance is checked by the following test.

Automatic operation of moving parts of an appliance is disabled.
The test is carried out with the appliance supplied at rated voltage and then with no voltage
applied.
The appliance is adjusted for the maximum opening and closing forces, if such adjustment is
mentioned in the instructions. The manual release is operated when the movement has
stopped at each end position, in turn. The manual release shall be operable with a force as
stated in the instructions or 220 N, whichever is the smaller, or a torque not exceeding
1,6 Nm.
When the manual release has been activated, the power supply is then restored and the
appliance is energized. Either the appliance shall not move, or shall move in such a way that all
requirements of this standard are met.
21 Mechanical strength
This clause of Part 1 is applicable except as follows.
21.1 Modification:
The impact energy is increased to 1,0 J.
Addition:
The appliance is subjected to a load of 1,1 times rated load for 15 minutes. The rated load
being distributed under normal operation.
21.101 Hand-held parts of appliances incorporating electrical components shall have
adequate mechanical strength.
Compliance is checked by subjecting the hand-held parts of appliances incorporating
electrical components to the test, free fall repeated, procedure 2, of IEC 60068-2-31.
The number of falls is 25.
The height of the falls is 1 000 mm.
After the test, the requirements of 8.1, 15.1.1, 16.3 and Clause 29 shall be met. If the tested
part can still operate to control the appliance, the complete appliance shall withstand the test
of Clause 11.
22 Construction
This clause of Part 1 is applicable except as follows.
22.101 Rotating parts shall be secured against loosening. This requirement is not applicable
to rotating parts secured against loosening by use of a counter-rotating thread.
Compliance is checked by inspection.
22.102 The rated load for appliances intended for carrying persons shall not be less than
110 kg.
– 16 – IEC 60335-2-116:2019 © IEC 2019
Compliance is checked by inspection.
23 Internal wiring
This clause of Part 1 is applicable.
24 Components
This clause of Part 1 is applicable except as follows.
24.2 Modification:
Furniture may be fitted with an impulse activation device and a stop device in the flexible
cord provided that the length of the flexible cord is such that the impulse activation device
or the stop device cannot make contact with the floor in normal use.
Furniture that carries a person may be fitted with a switch or a control in the flexible cord,
provided that the length of the flexible cord is such that the control cannot make contact with
the floor in normal use.
A switch or a control that does not contain live parts may be fitted in the flexible cord
regardless of the length of the cord.
24.101 Protective devices incorporated in appliances for compliance with 19.4 shall be non-
self-resetting and shall only be accessible with the aid of a tool.
Compliance is checked by inspection.
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 except as follows.
For the following appliances, 30.2.2 is applicable
– appliances operated by a biased-off switch;
– appliances operated by an impulse activation device.
For other appliances, 30.2.3 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.

– 18 – IEC 60335-2-116:2019 © IEC 2019
Annexes
The annexes of Part 1 are applicable except as follows.
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