Household and similar electrical appliances - Safety - Part 2-67: Particular requirements for floor treatment machines, for commercial use

IEC 60335-2-67:2021 is available as IEC 60335-2-67:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60335-2-67:2021 deals with the safety of powered floor treatment machines intended for commercial indoor or outdoor use for the following applications:
- scrubbing,
- wet or dry pick-up,
- polishing and dry buffing,
- application of wax, sealing products and powder based detergents,
- shampooing,
- stripping, grinding and scarifying
of floors with an artificial surface.
These machines have a cleaning motion which is more lateral or periodic than linear.
By contrast, the cleaning motion of machines covered by IEC 60335-2-72 is more linear than lateral or periodic.
This standard applies to machines for commercial use. The following list, although not comprehensive, gives an indication of locations that are included in the scope:
- public use areas such as hotels, schools, hospitals;
- industrial locations, for example factories and manufacturing shops;
- retail outlets, for example shops and supermarkets;
- business premises, for example offices and banks;
- all uses other than normal housekeeping purposes.
These machines are not equipped with a traction drive.
Machines for the same intended function but equipped with a traction drive are covered by IEC 60335 2-72.
The following power systems are covered:
- internal combustion engines,
- mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances,
- battery-operated machines.
Battery-operated machines may be equipped with a built-in battery charger.
This standard does not apply to
- vacuum cleaners and water-suction cleaning appliances for household use (IEC 60335 2 2);
- floor treatment appliances for household use (IEC 60335-2-10);
- spray extraction machines for commercial use (IEC 60335-2-68);
- wet and dry vacuum cleaners, including power brush, for commercial use (IEC 60335 2 69);
IEC 60335-2-68 and IEC 60335-2-69 cover only machines without traction drive.
- floor treatment machines with or without traction drive, for commercial use (IEC 60335 2 72);
- hand-held and transportable motor-operated electric tools (IEC 60745 series, IEC 61029 series, IEC 62841 series);
- machines designed for use in corrosive or explosive environments (dust, vapour or gas);
- machines designed for picking up hazardous dusts (as defined in IEC 60335-2-69), inflammable substances, or glowing particles;
- machines designed for use in vehicles or on board of ships or aircraft.
This fifth edition cancels and replaces the fourth edition published in 2012 and its Amendment 1: 2016. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- editorial and technical alignment with IEC 60335-1:2020.
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 sixth edition (2020) of that standard.

Appareils électrodomestiques et analogues - Sécurité - Partie 2-67: Exigences particulières pour les machines de traitement des sols, à usage commercial

IEC 60335-2-67:2021 est disponible sous forme de IEC 60335-2-67:2021 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 60335-2-67:2021 traite de la sécurité des machines de traitement des sols destinées à un usage commercial en intérieur ou en extérieur pour les applications suivantes:
- le brossage,
- le ramassage à sec ou en présence d'eau,
- le polissage et le polissage à sec,
- l'application de cire, de produits d'étanchéité et de détergents à base de poudre,
- le nettoyage par shampouineuse,
- le décapage, l'abrasion et la scarification
des sols avec une surface artificielle.
Ces machines présentent un mouvement de nettoyage plus latéral ou périodique que linéaire.
En revanche, le mouvement de nettoyage des machines couvertes par l'IEC 60335-2-72 est plus linéaire que latéral ou périodique.
La présente norme s'applique aux machines à usage commercial. La liste suivante, bien que non exhaustive, donne une indication des endroits inclus dans le domaine d'application:
- zones ouvertes au public, telles que les hôtels, les écoles, les hôpitaux;
- sites industriels, par exemple usines et ateliers de fabrication;
- commerces de détail, par exemple magasins et supermarchés;
- locaux commerciaux, par exemples bureaux et banques;
- tous les usages autres que l'utilisation domestique normale.
Ces machines ne sont pas équipées d'une commande de dispositif de déplacement.
Les machines conçues pour la même fonction prévue mais équipées d'une commande de dispositif de déplacement sont couvertes par l'IEC 60335-2-72.
Les systèmes d'alimentation suivants sont couverts:
- moteurs à combustion interne,
- moteurs alimentés par le réseau de tension assignée inférieure ou égale à 250 V pour les appareils monophasés et à 480 V pour les autres appareils,
- machines alimentées par batteries.
Les machines alimentées par batteries peuvent être équipées d'un chargeur de batterie intégré.
La présente norme ne s'applique pas:
- aux aspirateurs et aux appareils de nettoyage à aspiration d'eau à usage domestique (IEC 60335 2 2);
- aux appareils de traitement des sols à usage domestique (IEC 60335-2-10);
- aux machines de nettoyage par pulvérisation et aspiration à usage commercial (IEC 60335-2-68);
- aux aspirateurs qui fonctionnent en présence d'eau ou à sec, y compris les brosses motorisées, à usage commercial (IEC 60335 2 69);
L'IEC 60335-2-68 et l'IEC 60335-2-69 couvrent uniquement les machines sans commande de dispositif de déplacement.
- aux machines de traitement des sols avec ou sans commande de dispositif de déplacement, à usage commercial (IEC 60335 2 72);
- aux outils électroportatifs et portables à moteur (série IEC 60745, série IEC 61029, série IEC 62841);
- aux machines destinées à être utilisées dans des environnements corrosifs ou explosifs (poussière, vapeur ou gaz);
- aux machines destinées à aspirer de la poussière dangereuse (comme défini dans l'IEC 60335-2-69), des substances inflammables ou des particules incandescentes;
- aux machines destinées à être utilisées dans des véhicules ou à bord de navires ou d'avions.
Cette cinquième édition annule et remplace la quatrième édition parue en 2012 et son Amendement 1:2016. Elle constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- alignement rédactionnel et technique sur l'IEC 60335-1:2020.
La présente partie 2 doit être utilisée conjointement avec la dernière édition de l'IEC 60335-1 et ses amendements. Elle a été établie sur la base de la sixième édition (2020) de cette norme.

General Information

Status
Published
Publication Date
02-May-2021
Current Stage
PPUB - Publication issued
Completion Date
03-May-2021
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IEC 60335-2-67
Edition 5.0 2021-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colourcolour
insinsiidede
Household and similar electrical appliances – Safety –
Part 2-67: Particular requirements for floor treatment machines, for commercial
use
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-67: Exigences particulières pour les machines de traitement des sols,
à usage commercial
IEC 60335-2-67:2021-05(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60335-2-67
Edition 5.0 2021-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 2-67: Particular requirements for floor treatment machines, for commercial
use
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-67: Exigences particulières pour les machines de traitement des sols,
à usage commercial
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 23.080; 91.140.65 ISBN 978-2-8322-9764-3

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 60335-2-67:2021 © IEC 2021
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 7

1 Scope .............................................................................................................................. 8

2 Normative references ...................................................................................................... 9

3 Terms and definitions ...................................................................................................... 9

4 General requirement ...................................................................................................... 11

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

6 Classification ................................................................................................................. 11

7 Marking and instructions ................................................................................................ 12

8 Protection against access to live parts ........................................................................... 15

9 Starting of motor-operated appliances ........................................................................... 16

10 Power input and current ................................................................................................. 16

11 Heating .......................................................................................................................... 16

12 Charging of metal-ion batteries ...................................................................................... 16

13 Leakage current and electric strength at operating temperature ..................................... 16

14 Transient overvoltages .................................................................................................. 17

15 Moisture resistance ....................................................................................................... 17

16 Leakage current and electric strength ............................................................................ 19

17 Overload protection of transformers and associated circuits .......................................... 19

18 Endurance ..................................................................................................................... 19

19 Abnormal operation ....................................................................................................... 19

20 Stability and mechanical hazards ................................................................................... 20

21 Mechanical strength ...................................................................................................... 21

22 Construction .................................................................................................................. 24

23 Internal wiring ................................................................................................................ 26

24 Components .................................................................................................................. 26

25 Supply connection and external flexible cords ............................................................... 27

26 Terminals for external conductors .................................................................................. 28

27 Provision for earthing .................................................................................................... 28

28 Screws and connections ................................................................................................ 28

29 Clearances, creepage distances and solid insulation ..................................................... 28

30 Resistance to heat and fire ............................................................................................ 28

31 Resistance to rusting ..................................................................................................... 28

32 Radiation, toxicity and similar hazards ........................................................................... 28

Annexes ............................................................................................................................... 33

Annex B (normative) Battery-operated appliances, separable batteries and

detachable batteries for battery-operated appliances ............................................................ 34

Annex AA (normative) Precast paving slabs ......................................................................... 35

Annex BB (normative) Requirements for internal combustion engine powered

machines using liquefied petroleum gas (LPG) ..................................................................... 36

Annex CC (informative) Emission of acoustical noise ........................................................... 39

Annex DD (informative) Emission of vibration ...................................................................... 42

---------------------- Page: 4 ----------------------
IEC 60335-2-67:2021 © IEC 2021 – 3 –

Bibliography .......................................................................................................................... 43

Index of defined terms .......................................................................................................... 44

Figure 101 – Impact test apparatus ....................................................................................... 29

Figure 102 – Apparatus for testing the abrasion resistance of current-carrying hoses ........... 30

Figure 103 – Apparatus for testing the resistance to flexing of current-carrying hoses .......... 31

Figure 104 – Configuration of the hose for the freezing treatment ......................................... 31

Figure 105 – Flexing positions for the hose after removal from the freezing cabinet .............. 32

Figure 106 – Warning symbol: Do not inhale exhaust fumes ................................................. 32

Table 12 – Pull force and torque ........................................................................................... 27

Table CC.1 – Determination of uncertainty ............................................................................ 41

---------------------- Page: 5 ----------------------
– 4 – IEC 60335-2-67:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-67: Particular requirements for floor
treatment machines, for commercial use
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 60335-2-67 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.

This fifth edition cancels and replaces the fourth edition published in 2012 and its

Amendment 1: 2016. It constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
– editorial and technical alignment with IEC 60335-1:2020.
---------------------- Page: 6 ----------------------
IEC 60335-2-67:2021 © IEC 2021 – 5 –
The text of this International Standard is based on the following documents:
CDV Report on voting
61J/735/CDV 61J/742A/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.

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.

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 sixth edition (2020) of that standard.

NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.

This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to

convert that publication into the IEC standard: Particular requirements for floor treatment

machines, for commercial use.

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.

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.

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.

---------------------- Page: 7 ----------------------
– 6 – IEC 60335-2-67:2021 © IEC 2021

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: 8 ----------------------
IEC 60335-2-67:2021 © IEC 2021 – 7 –
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.
---------------------- Page: 9 ----------------------
– 8 – IEC 60335-2-67:2021 © IEC 2021
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-67: Particular requirements for floor
treatment machines, for commercial use
1 Scope
This clause of Part 1 is replaced by the following.

This part of IEC 60335 deals with the safety of powered floor treatment machines intended for

commercial indoor or outdoor use for the following applications:
– scrubbing,
– wet or dry pick-up,
– polishing and dry buffing,
– application of wax, sealing products and powder based detergents,
– shampooing,
– stripping, grinding and scarifying
of floors with an artificial surface.

These machines have a cleaning motion which is more lateral or periodic than linear.

NOTE 101 By contrast, the cleaning motion of machines covered by IEC 60335-2-72 is more linear than lateral or

periodic.

NOTE 102 This standard applies to machines for commercial use. The following list, although not

comprehensive, gives an indication of locations that are included in the scope:
– public use areas such as hotels, schools, hospitals;
– industrial locations, for example factories and manufacturing shops;
– retail outlets, for example shops and supermarkets;
– business premises, for example offices and banks;
– all uses other than normal housekeeping purposes.
These machines are not equipped with a traction drive.

NOTE 103 Machines for the same intended function but equipped with a traction drive are covered by

IEC 60335-2-72.
The following power systems are covered:
– internal combustion engines,

– mains powered motors up to a rated voltage of 250 V for single-phase appliances and

480 V for other appliances,
– battery-operated machines.
Battery-operated machines may be equipped with a built-in battery charger.
This standard does not apply to
– vacuum cleaners and water-suction cleaning appliances for household use
(IEC 60335-2-2);
---------------------- Page: 10 ----------------------
IEC 60335-2-67:2021 © IEC 2021 – 9 –
– floor treatment appliances for household use (IEC 60335-2-10);
– spray extraction machines for commercial use (IEC 60335-2-68);
– wet and dry vacuum cleaners, including power brush, for commercial use
(IEC 60335-2-69);

NOTE 104 IEC 60335-2-68 and IEC 60335-2-69 cover only machines without traction drive.

– floor treatment machines with or without traction drive, for commercial use
(IEC 60335-2-72);

– hand-held and transportable motor-operated electric tools (IEC 60745 series, IEC 61029

series, IEC 62841 series);

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

– machines designed for picking up hazardous dusts (as defined in IEC 60335-2-69),

inflammable substances, or glowing particles;
– machines designed for use in vehicles or on board of ships or aircraft.

NOTE 105 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
This clause of Part 1 is applicable except as follows.
Addition:

IEC TS 62885-1, Surface cleaning appliances – Part 1: General requirements on test material

and test equipment

ISO 6344-2, Coated abrasives – Grain size analysis – Part 2: Determination of grain size

distribution of macrogrits P12 to P220
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
3.1.9 Addition:
normal operation
conditions under which the machine is operated in normal use, as intended by the
manufacturer

It denotes the load corresponding to the rated power input or the highest obtainable load of

all particular loads of the various functions that can be operated at the same time according to

the manufacturer’s instructions.

Tanks of machines, if applicable, are filled before starting the operation to the highest level as

indicated on the tank, or completely if no marking is provided.
Suction functions, if applicable, are switched on during operation.

The normal operation related to the operational functions is specified in 3.1.9.101 to

3.1.9.103.

3.1.9.101 Scrubbing, stripping, grinding and scarifying machines are operated with the

appropriate brushes or pads on a surface of hydraulically pressed concrete paving slabs (see

normative Annex AA).
---------------------- Page: 11 ----------------------
– 10 – IEC 60335-2-67:2021 © IEC 2021

An alternative is a smooth concrete area of a surface consistency comparable with

hydraulically pressed concrete paving slabs.
3.1.9.102 Polishing and dry buffing machines are operated as follows.

PVC or comparable surfaces are considered to be suitable for establishing normal operation.

The peak of input occurring during the drying process of the chemical applied to treat the

surface is not taken as normal operation but is averaged by extending measurements over a

period of at least 10 min.

3.1.9.103 Carpet shampooers are operated on a test surface consisting of a carpet, in

accordance with IEC TS 62885-1, the carpet being fastened to the floor.

Prior to testing, the brush of the shampooing machine is conditioned by operating it for 15 min

on a clean, dry concrete surface. After running on the concrete surface the brush is immersed

in a shampoo solution for at least 30 min.
3.101
water-suction cleaning machine
machine for applying and sucking up a water-based cleaning solution
3.102
motorized cleaning head

hand-held or hand-guided cleaning device connected to the machine, with an integrated

electrical motor

Note 1 to entry: The permanently attached main cleaning head is not regarded as a motorized cleaning head.

3.103
traction drive
system used to propel the machine, e.g. by powered wheels
Note 1 to entry: Traction by the effect of rotating brushes is not included.
3.104
operator presence control
OPC

control device that automatically interrupts the power, e.g. to a drive or an engine, when the

operator's actuating force is removed

Note 1 to entry: Such devices can be, for example, continuous action controls ("hold-to-run" controls).

3.105
guard

part of the machine specifically designed to provide protection by means of a physical barrier,

such as, for example, a casing, a shield, a cover, a screen, a door, an enclosure or a fence;

other parts of the machine that fulfil a primarily operational function, such as, for example, the

frame of the machine, may also fulfil a protective function but are not referred to as guards

Note 1 to entry: Three main kinds of guards can be distingui
...

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