Automatic floor treatment machines for commercial use - Particular requirements

IEC 63327:2021 deals with the safety of powered automatic floor treatment machines intended for commercial use indoors for the following applications:
– sweeping,
– scrubbing,
– wet or dry pick-up,
– polishing,
– application of wax, sealing products and powder-based detergents,
– shampooing
of floors.
The requirements given by this standard are applied in addition to the requirements for commercial floor treatment machines in IEC 60335-2-72, as far as applicable.
For automatic floor treatment machines solely designed for wet or dry pick-up, additional or modified requirements of IEC 60335-2-69 where stated are applicable.
Machines covered by this standard can operate in automatic or manual mode.
Modified requirements are given in Annex FF of this standard for automatic floor treatment machines not equipped with a manual mode.
The automatic floor treatment machines covered by this standard are designed to avoid hazardous contact with persons in the environment applied. It is recognized that automatic floor treatment machines for commercial use might require operation within close proximity to large groups of people, such as in shopping malls and schools.
Throughout this standard, the term “machine” is used to refer to an automatic floor treatment machine.
The following power systems are covered:
– rechargeable batteries that are recharged by built-in battery chargers or off-board battery chargers which may be incorporated within the circuitry of the machine, or mounted on the machine and incorporated within the enclosure of the automatic floor treatment machine; or powered by batteries that need to be removed to be recharged with a charger that is external to the machine,
– Other systems are under consideration.
This standard does not apply to
– vacuum cleaners and water-suction cleaning appliances and automatic battery-operated cleaners for household use (IEC 60335-2-2);
– floor treatment machines and wet scrubbing machines for household use (IEC 60335‑2‑10);
– battery chargers (IEC 60335-2-29);
– floor treatment machines for commercial use (IEC 60335-2-67);
– spray extraction machines for commercial use (IEC 60335-2-68);
– road sweepers;
– machines designed for use on slopes with a gradient exceeding 20 %;
– machines equipped with a power take-off (PTO);
– machines designed for use in corrosive or explosive environments (dust, vapour or gas);
– machines designed for use in vehicles or on board of ships or aircraft.
– vacuum cleaners designed for pickup of combustible dust;
– appliances for medical purposes (IEC 60601-1);
– driverless industrial trucks and their systems (ISO 3691-4);
– robots and robotic devices: Safety requirements of personal care robots (ISO 13482)
– machines with parts that extend beyond the contact zone of the machine;
– machines designed for picking up liquids with a flash point below 55 °C.

Machines automatiques de traitement des sols à usage commercial - Exigences particulières

L'IEC 63327:2021 traite de la sécurité des machines automatiques de traitement des sols destinées à un usage commercial en intérieur pour les applications suivantes:
– le balayage,
– le brossage,
– le ramassage à sec ou en présence d'eau,
– le polissage,
– l'application de cire, de produits d'étanchéité et de détergents à base de poudre,
– le nettoyage par shampouineuse
des sols.
Les exigences données dans la présente norme s'appliquent en plus des exigences pour les machines de traitement des sols à usage commercial données dans l'IEC 60335-2-72, pour autant qu'elles soient applicables.
Pour les machines automatiques de traitement des sols conçues uniquement pour le ramassage à sec ou en présence d'eau, les exigences supplémentaires ou modifiées comme indiqué de l'IEC 60335-2-69 sont applicables.
Les machines couvertes par la présente norme peuvent fonctionner en mode automatique ou en mode manuel.
Les exigences modifiées sont indiquées à l'Annexe FF de la présente norme pour les machines automatiques de traitement des sols qui ne disposent pas d'un mode manuel.
Les machines automatiques de traitement des sols couvertes par la présente norme sont conçues de manière à éviter tout contact dangereux avec des personnes dans l'environnement d'application. Il est avéré que les machines automatiques de traitement des sols à usage commercial peuvent exiger un fonctionnement à proximité immédiate de grands groupes de personnes, notamment dans les centres commerciaux et les écoles.
Tout au long de la présente norme, le terme "machine" est utilisé pour désigner une machine automatique de traitement des sols.
Les systèmes d'alimentation suivants sont couverts:
– batteries rechargeables qui sont rechargées par des chargeurs de batterie intégrés ou des chargeurs de batterie externes qui peuvent être intégrés aux circuits de la machine, ou montés sur la machine et intégrés à l'enceinte de la machine automatique de traitement des sols; ou alimentation par batteries qu'il est nécessaire de retirer pour les recharger à l'aide d'un chargeur externe à la machine;
– d'autres systèmes sont à l'étude.
La présente norme ne s'applique pas
– aux aspirateurs et aux appareils de nettoyage à aspiration d'eau ainsi qu'aux aspirateurs automatiques alimentés par batteries à usage domestique (IEC 60335-2-2);
– aux machines de traitement des sols et aux machines à brosser les sols mouillés à usage domestique (IEC 60335‑2‑10);
– aux chargeurs de batterie (IEC 60335-2-29);
– aux machines de traitement des sols à usage commercial (IEC 60335-2-67);
– aux machines de nettoyage par pulvérisation et aspiration à usage commercial (IEC 60335-2-68);
– aux balayeuses de chaussée;
– aux machines conçues pour être utilisées sur des surfaces en pente dont l'inclinaison dépasse 20 %;
– aux machines équipées d'une prise de force;
– aux machines destinées à être utilisées dans des environnements corrosifs ou explosifs (poussière, vapeur ou gaz);
– aux machines destinées à être utilisées dans des véhicules ou à bord de navires ou d'avions;
– aux aspirateurs destinés à aspirer de la poussière combustible;
– aux appareils destinés à des usages médicaux (IEC 60601-1);
– aux chariots sans conducteur et leurs systèmes (ISO 3691-4);
– aux robots et composants robotiques: Exigences de sécurité pour les robots de soins personnels (ISO 13482);
– aux machines qui comportent des parties qui s'étendent au-delà de la zone de contact de la machine;
– aux machines destinées à aspirer des liquides dont le point d'éclair est inférieur à 55 °C.

General Information

Status
Published
Publication Date
03-May-2021
Current Stage
PPUB - Publication issued
Completion Date
04-May-2021
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IEC 63327
Edition 1.0 2021-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Automatic floor treatment machines for commercial use –
Particular requirements
Machines automatiques de traitement des sols à usage commercial –
Exigences particulières
IEC 63327:2021-05(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 63327
Edition 1.0 2021-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Automatic floor treatment machines for commercial use –
Particular requirements
Machines automatiques de traitement des sols à usage commercial –
Exigences particulières
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.120; 97.080 ISBN 978-2-8322-9763-6

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 63327:2021 © IEC 2021
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 8

4 General requirements .................................................................................................... 11

5 General conditions for the tests ..................................................................................... 11

6 Starting of motor operated appliances ........................................................................... 11

7 Stability and mechanical hazards ................................................................................... 12

8 Construction .................................................................................................................. 15

Annexes ............................................................................................................................... 17

Annex FF (normative) Additional requirements for automatic floor treatment machines

not equipped with a manual mode ......................................................................................... 18

Annex GG (normative) Requirements for docking stations for automatic floor treatment

machines for commercial use ................................................................................................ 20

Annex HH (normative) Requirements to avoid backsiphonage at docking stations ............... 31

Annex II (informative) Emission of acoustical noise of docking stations ................................ 32

Annex JJ (informative) Alternative route to fulfil safety critical functions ............................... 34

Bibliography .......................................................................................................................... 35

Figure 1 – Measurement of confined space speed ................................................................ 16

Figure 2 – Confined space, stopping zone, and contact zone ................................................ 16

Figure 3 – Obstacle positioning during docking process ........................................................ 16

Table 1 – Minimum required performance levels ................................................................... 13

Table GG.1 – Degree of protection against harmful ingress of water ..................................... 21

Table JJ.1 – Safety functions ................................................................................................ 34

---------------------- Page: 4 ----------------------
IEC 63327:2021 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUTOMATIC FLOOR TREATMENT MACHINES FOR COMMERCIAL USE –
PARTICULAR REQUIREMENTS
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) 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.

IEC 63327 has been prepared by subcommittee 61J: Electrical motor-operated cleaning

appliances for commercial use, of 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:
CDV Report on voting
61J/734/CDV 61J/747A/RVC

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.
---------------------- Page: 5 ----------------------
– 4 – IEC 63327:2021 © IEC 2021

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/standardsdev/publications.

The requirements for the construction and testing covered by this document are applied in

addition to the particular requirements for floor treatment machines with or without traction

drive, for commercial use given in IEC 60335-2-72:2021.
NOTE 1 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.

NOTE 2 The 100 numbering is applied in certain clauses of this standard as these are additions to certain existing

clauses of IEC 60335-1, IEC 60335-2-69, and IEC 60335-2-72.

NOTE 3 The 200 numbering in certain clauses of this standard is applied to avoid overlap with the numbering of

the corresponding clauses of IEC 60335-1, IEC 60335-2-69, and IEC 60335-2-72.

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,
• replaced by a revised edition, or
• amended.

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.
---------------------- Page: 6 ----------------------
IEC 63327:2021 © IEC 2021 – 5 –
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.

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 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.
---------------------- Page: 7 ----------------------
– 6 – IEC 63327:2021 © IEC 2021
AUTOMATIC FLOOR TREATMENT MACHINES FOR COMMERCIAL USE –
PARTICULAR REQUIREMENTS
1 Scope

This International Standard deals with the safety of powered automatic floor treatment

machines intended for commercial use indoors for the following applications:
– sweeping,
– scrubbing,
– wet or dry pick-up,
– polishing,
– application of wax, sealing products and powder-based detergents,
– shampooing
of floors.

The requirements given by this standard are applied in addition to the requirements for

commercial floor treatment machines in IEC 60335-2-72, as far as applicable.

For automatic floor treatment machines solely designed for wet or dry pick-up, additional or

modified requirements of IEC 60335-2-69 where stated are applicable.
Machines covered by this standard can operate in automatic or manual mode.

Modified requirements are given in Annex FF of this standard for automatic floor treatment

machines not equipped with a manual mode.

The automatic floor treatment machines covered by this standard are designed to avoid

hazardous contact with persons in the environment applied. It is recognized that automatic

floor treatment machines for commercial use might require operation within close proximity

to large groups of people, such as in shopping malls and schools.

Throughout this standard, the term “machine” is used to refer to an automatic floor

treatment machine.
The following power systems are covered:

– rechargeable batteries that are recharged by built-in battery chargers or off-board

battery chargers which may be incorporated within the circuitry of the machine, or

mounted on the machine and incorporated within the enclosure of the automatic floor

treatment machine; or powered by batteries that need to be removed to be recharged

with a charger that is external to the machine,
– Other systems are under consideration.
This standard does not apply to

– vacuum cleaners and water-suction cleaning appliances and automatic battery-operated

cleaners for household use (IEC 60335-2-2);
– floor treatment machines and wet scrubbing machines for household use
(IEC 60335‑2‑10);
– battery chargers (IEC 60335-2-29);
---------------------- Page: 8 ----------------------
IEC 63327:2021 © IEC 2021 – 7 –
– floor treatment machines for commercial use (IEC 60335-2-67);
– spray extraction machines for commercial use (IEC 60335-2-68);
– road sweepers;
NOTE 101 In Europe, the EN 17106 series covers road sweepers.
– machines designed for use on slopes with a gradient exceeding 20 %;
– machines equipped with a power take-off (PTO);

– machines designed for use in corrosive or explosive environments (dust, vapour or gas);

– machines designed for use in vehicles or on board of ships or aircraft.
– vacuum cleaners designed for pickup of combustible dust;
– appliances for medical purposes (IEC 60601-1);
– driverless industrial trucks and their systems (ISO 3691-4);

– robots and robotic devices: Safety requirements of personal care robots (ISO 13482)

– machines with parts that extend beyond the contact zone of the machine;

NOTE 102 Components of the machine that operate outside the contact zone can be evaluated differently.

– machines designed for picking up liquids with a flash point below 55 °C.

NOTE 103 The flash point temperature limit can vary in different countries. National regulations will need to be

taken into account.

NOTE 104 Attention is drawn to the fact that in many countries additional requirements on the safe use of the

equipment covered can be specified by the national health authorities, the national authorities responsible for the

protection of labour, the national water supply authorities and similar authorities.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their

content constitutes requirements of this document. For dated references, only the edition

cited applies. For undated references, the latest edition of the referenced document (including

any amendments) applies.

IEC 60335-1:2020, Household and similar electrical appliances – Safety – Part 1: General

requirements

IEC 60335-2-69:2021, Household and similar electrical appliances – Safety – Part 2-69:

Particular requirements for wet and dry vacuum cleaners, including power brush, for

commercial use

IEC 60335-2-72:2021, Household and similar electrical appliances – Safety – Part 2-72:

Particular requirements for floor treatment machines with or without traction drive, for

commercial use

IEC 61032, Protection of persons and equipment by enclosures – Probes for verification

IEC 61058-1, Switches for appliances – Part 1: General requirements
IEC 61770:2008, Electric appliances connected to the water mains – Avoidance of
backsiphonage and failure of hose-sets

IEC 62061, Safety of machinery – Functional safety of safety-related control systems

ISO 13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General

principles for design
---------------------- Page: 9 ----------------------
– 8 – IEC 63327:2021 © IEC 2021

ISO 13857:2019, Safety of machinery – Safety distances to prevent hazard zones being

reached by upper and lower limbs

ISO 18646-1:2016, Robotics – Performance criteria and related test methods for service

robots – Part 1: Locomotion for wheeled robots
3 Terms and definitions

Clause 3 of IEC 60335-2-69:2021 and IEC 60335-2-72:2021 applies, except as follows:

NOTE The 200 numbering in Clause 3 of this standard is applied to avoid overlap with the numbering of Clause 3

of IEC 60335-2-69 and IEC 60335-2-72.
Addition:
3.201
automatic floor treatment machine

machine that operates automatically on a defined working area and that may also be able to

be operated in a manual mode

Note 1 to entry: Definition of the work area and floor surface can be done by operator action, (temporary)

physical limitations or by autonomous (initial) exploratory mode of the machine.
3.202
type 1 machine
automatic floor treatment machine having
– a maximum rated automatic speed not exceeding 3 km/h, and
– a height during normal operation not exceeding 50 cm above the ground, and
– a mass during normal operation not exceeding 20 kg
Note 1 to entry: If a GVW is available, the mass is replaced by this value.
3.203
type 2 machine
automatic floor treatment machine other than a type 1 machine
3.204
control system

set of logic control and power functions which allows to monitor and control the mechanical

structure of the machine and to communicate with the environment (equipment and
operators)

[SOURCE: ISO 8373:2012, 2.7 modified – "monitoring" has been changed to "to monitor",

"robot" has been changed to "machine", "communication" has been changed to
"communicate" and "users" has been changed to "operators"]
3.205
manual mode

operating mode in which the machine can be operated by, for example, pushbuttons or a

joystick and that excludes operation in automatic mode
Note 1 to entry: It includes manual cleaning and transportation modes.

[SOURCE: ISO 8373:2012, 5.3.10.2, modified – "robot" has been changed to "machine",

"operation" has been changed to "mode" and the note to entry has been added]
---------------------- Page: 10 ----------------------
IEC 63327:2021 © IEC 2021 – 9 –
3.206
automatic mode

operating mode in which the machine accomplishes its assigned mission without direct human

intervention
3.207
locked state

condition in which the driving wheels are being prevented from moving with a locking

mechanism that can be unlocked by the intervention of the authorized operator only

Note 1 to entry: A locking mechanism can be the traction drive or the service brake.

3.208
rated automatic speed
maximum speed of the machine during operation in automatic mode in open space
3.209
access control

security measure enabling the operator to gain access to the control of the machine

Note 1 to entry: It includes, but is not limited to, a key-protected control device.

3.210
stopping distance

maximum distance travelled by the machine between the initiation of the stop and the

complete standstill
Note 1 to entry: The stopping distance in 7.3 includes machine reaction time.

[SOURCE: ISO 18646-1:2016, 3.10, modified – "mobile platform origin" has been changed to

"machine", "full stop of the mobile platform" has been changed to "complete standstill" and the

note to entry has been added]
3.211
stop category 0

stopping by immediate removal of power to the machine actuators (i.e., an uncontrolled stop)

Note 1 to entry: It is understood that operator attention will be required to re-enable power to the actuators.

[SOURCE: IEC 60204-1:2016, 9.2.2, modified – Note to entry has been added]
3.212
stop category 1

controlled stop with power available to the machine actuators to achieve the stop and then

removal of power when the stop is achieved

Note 1 to entry: It is understood that operator attention will be required to re-enable power to the actuators.

[SOURCE: IEC 60204-1:2016, 9.2.2, modified – Note to entry has been added]
3.213
stop category 2
controlled stop with power left available to the machine actuators

Note 1 to entry: It is understood that operator attention is not required to re-enable power to the actuators.

[SOURCE: IEC 60204-1:2016, 9.2.2, modified – "remaining" has been changed to "left" and

the note to entry has been added]
---------------------- Page: 11 ----------------------
– 10 – IEC 63327:2021 © IEC 2021
3.214
stopping zone

fixed or variable-sized zone in which the machine has the capabilities to avoid a static object

Note 1 to entry: See Figure 2.
3.215
contact zone

boundary in which the machine is assumed to be in contact with the object, and the allowable

motion of the machine could be hazardous at that boundary
Note 1 to entry: See Figure 2.

Note 2 to entry: Hazardous exposed moving side brushes are included in the contact zone.

3.216
open space
area that is not considered to be a confined space
3.217
confined space

area in which the distance from the nearest continuous wall or obstacle is less than 0,5 m

from the machine transport width parallel to the direction of motion
Note 1 to entry: See Figure 2.
3.218
machine transport width

minimum width the machine can pass through to indicate the maneuverability of the machine

during transport

Note 1 to entry: It does not indicate the effective cleaning width of the machine.

[SOURCE: IEC 62885-9:2019, Clause 7, modified – "not the effective cleaning width of the

machine" has been deleted and the note to entry has been added]
3.219
docking station

unit that may provide one or more of the following functions for the automatic floor

treatment machine:
– manual or automatic battery charging facilities,
– AC and/or DC power supply,
– filling water with or without detergents,
– filling detergents,
– filling water for wet batteries,
– emptying of wastewater, dust, coarse dirt,
– communication connections,
– navigation information
Note 1 to entry: A docking station is also known as a base unit.
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IEC 63327:2021 © IEC 2021 – 11 –
4 General requirements
The machine shall be constructed as follows:

The machine when in manual mode shall fulfil the requirements for commercial floor

treatment machines according to IEC 60335-2-72:2021 unless stated otherwise in this

standard. Further requirements for the automatic mode are given within the main body of this

standard. Machines shall be constructed in their manual and automatic mode so that they

function safely to cause no danger to persons or surroundings during normal use, even in the

event of carelessness, and during installation, adjusting, maintenance, cleaning, repairing, or

transportation. For ride-on machines in automatic mode, operator presence on the

machine shall be prevented either by sensing which stops the machine from operating, or

design features which prevent operator presence.

Modified requirements to IEC 60335-2-72:2021 are given in normative Annex FF of this

standard for automatic floor treatment machines not equipped with a manual mode.

For the purposes of this standard, the term ‘appliance’ as used in IEC 60335-1:2020 is to be

read as ‘machine’.

Safety of the machine shall not depend on remote operation. Resetting of stop category 0 or

stop category 1 shall not be possible remotely.
Compliance is checked by the following:
The tests of this standard shall be performed after disabling remote operations.
5 General conditions for the tests

5.1 The following test obstacles, taken from ISO 13856-3, shall be covered in black felt

...

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