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

IEC 60335-2-67:2012 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. Their cleaning motion is more lateral or periodic than linear. 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.
They are not equipped with a traction drive. 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-powered motors.
Battery powered machines may be equipped with a built-in battery charger. This fourth edition cancels and replaces the third edition published in 2002 and its Amendment 1 (2005). It constitutes a technical revision. The principal changes in this edition as compared with the third edition of IEC 60335-2-67 are as follows (minor changes are not listed):
- the title has been changed for better distinction with regard to IEC 60335-2-72;
- the scope has been revised editorially to avoid misunderstandings;
- terms and definitions has been revised with regard to the requirements revised;
- the standard has been revised in general and updated regarding state-of-the-art, as far as necessary, in particular some changes have been made to Clauses 15, 22 and 25;
- a new Annex BB (LPG requirements) was added;
- a new Annex CC 'Emission of acoustical noise' was added;
- and a new Annex DD 'Emission of vibration' was added. Keywords: Floor treatment machine; Water-suction cleaning machine
This publication is to be read in conjunction with IEC 60335-1:2010.

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

La CEI 60335-2-67:2012 traite de la sécurité des machines de traitement des sols à usage commercial, intérieur ou extérieur, pour les applications suivantes:
- brossage,
- ramassage à sec ou en présence d'eau,
- lustrage et polissage à sec,
- application de cire, de produits d'étanchéité et de détergents à base de poudre,
- nettoyage par shampouineuse,
- décapage, ponçage et scarification de sols avec une surface artificielle. Leur mouvement de nettoyage est plus latéral ou périodique que linéaire. La présente norme s'applique aux machines à usage commercial. La liste suivante, sans être exhaustive, donne une indication des emplacements compris dans le domaine d'application:
- espaces publics tels que les hôtels, les écoles, les hôpitaux;
- sites industriels, par exemple les usines et les ateliers de fabrication;
- commerces, par exemple les magasins de détail et les supermarchés;
- établissements commerciaux, par exemple les bureaux et les banques;
- toute utilisation autre que les utilisations domestiques normales. Ces machines ne possèdent pas de dispositif de transmission. Les systèmes d'alimentation électrique suivants sont couverts:
- moteurs à combustion interne,
- moteurs alimentés par le réseau jusqu'à une tension assignée de 250 V pour les appareils monophasés et 480 V pour les autres appareils,
- moteurs alimentés par batteries.
Les machines alimentées par batterie peuvent être équipées d'un chargeur de batterie incorporé. Cette quatrième édition annule et remplace la troisième édition publiée en 2002 et son Amendement 1 (2005). Elle constitue une révision technique. Les principales modifications de la présente édition par rapport à la troisième édition de la CEI 60335-2-67 sont les suivantes (les changements mineurs ne sont pas listés):
- le titre a été modifié pour une meilleure distinction d'avec la CEI 60335-2-72;
- le domaine d'application a fait l'objet d'une révision éditoriale afin d'éviter toute erreur d'interprétation;
- les termes et définitions ont été révisés par rapport aux exigences révisées;
- la norme a été révisée de manière générale et mise à jour au regard de l'état de l'art, dans la mesure du nécessaire;
- certaines modifications, en particulier, ont été apportées aux Articles 15, 22, et 25;
- une nouvelle Annexe BB (exigences liées au GPL) a été ajoutée;
- une nouvelle Annexe CC 'Emission de bruit acoustique' a été ajoutée;
- et une nouvelle Annexe DD 'Emission de vibrations' a été ajoutée. Mots clé: machines de traitement des sols; appareils de nettoyage à aspiration d'eau.
Cette publication doit être lue conjointement avec la CEI 60335-1:2010.

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Publication Date
28-Mar-2012
Current Stage
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Completion Date
03-May-2021
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IEC 60335-2-67
Edition 4.0 2012-03
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
IEC 60335-2-67:2012
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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---------------------- Page: 2 ----------------------
IEC 60335-2-67
Edition 4.0 2012-03
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
PRICE CODE
INTERNATIONALE
CODE PRIX
ICS 23.080; 91.140.65 ISBN 978-2-8322-0067-4

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 – 60335-2-67 © IEC:2012
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 ............................................................................ 15

10 Power input and current ................................................................................................. 15

11 Heating .......................................................................................................................... 15

12 Void................................................................................................................................ 16

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

14 Transient overvoltages ................................................................................................... 16

15 Moisture resistance ........................................................................................................ 16

16 Leakage current and electric strength ............................................................................. 18

17 Overload protection of transformers and associated circuits ........................................... 18

18 Endurance ...................................................................................................................... 18

19 Abnormal operation ........................................................................................................ 18

20 Stability and mechanical hazards ................................................................................... 19

21 Mechanical strength ....................................................................................................... 20

22 Construction ................................................................................................................... 22

23 Internal wiring ................................................................................................................. 24

24 Components ................................................................................................................... 24

25 Supply connection and external flexible cords ................................................................ 24

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

27 Provision for earthing ..................................................................................................... 26

28 Screws and connections ................................................................................................. 26

29 Clearances, creepage distances and solid insulation ...................................................... 26

30 Resistance to heat and fire ............................................................................................. 26

31 Resistance to rusting ...................................................................................................... 26

32 Radiation, toxicity and similar hazards ............................................................................ 26

Annexes ............................................................................................................................... 31

Annex AA (normative) Precast paving slabs ......................................................................... 32

Annex BB (normative) Requirements for internal combustion engine powered

machines using liquefied petroleum gas (LPG) ..................................................................... 33

Annex CC (informative) Emission of acoustical noise ........................................................... 36

Annex DD (informative) Emission of vibration ...................................................................... 39

Bibliography .......................................................................................................................... 40

---------------------- Page: 4 ----------------------
60335-2-67 © IEC:2012 – 3 –

Figure 101 – Impact test apparatus ....................................................................................... 27

Figure 102 – Apparatus for testing the abrasion resistance of current-carrying hoses .......... 28

Figure 103 – Apparatus for testing the resistance to flexing of current-carrying hoses ......... 28

Figure 104 – Configuration of the hose for the freezing treatment ........................................ 29

Figure 105 – Flexing positions for the hose after removal from the freezing cabinet ............. 29

Figure 106 – Warning symbol: Do not inhale exhaust fumes ................................................ 30

Table 12 – Pull force and torque ........................................................................................... 25

Table CC.1 – Determination of uncertainty ............................................................................ 38

---------------------- Page: 5 ----------------------
– 4 – 60335-2-67 © IEC:2012
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.

International Standard 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.

This fourth edition cancels and replaces the third edition published in 2002 and its

Amendment 1 (2005). It constitutes a technical revision.

The principal changes in this edition as compared with the third edition of IEC 60335-2-67 are

as follows (minor changes are not listed):

– the title has been changed for better distinction with regard to IEC 60335-2-72;

– the scope has been revised editorially to avoid misunderstandings;

– terms and definitions has been revised with regard to the requirements revised;

---------------------- Page: 6 ----------------------
60335-2-67 © IEC:2012 – 5 –

– the standard has been revised in general and updated regarding state-of-the-art, as far as

necessary, in particular some changes have been made to Clauses 15, 22 and 25;
– a new Annex BB (LPG requirements) was added;
– a new Annex CC 'Emission of acoustical noise' was added; and
– a new Annex DD 'Emission of vibration' was added.
The text of this standard is based on the following documents:
FDIS Report on voting
61J/489/FDIS 61J/498/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its

amendments. It was established on the basis of the fifth edition (2010) of that standard.

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

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

convert that publication into the IEC standard: Safety requirements for 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.
---------------------- Page: 7 ----------------------
– 6 – 60335-2-67 © IEC:2012

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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 ----------------------
60335-2-67 © IEC:2012 – 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 – 60335-2-67 © IEC:2012
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 International Standard 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.
Their cleaning motion 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.

They are not equipped with a traction drive. 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-powered motors.
Battery powered 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 according to 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);
---------------------- Page: 10 ----------------------
60335-2-67 © IEC:2012 – 9 –

– floor treatment machines with or without traction drive, for commercial use, according to

IEC 60335-2-72;

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

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 103 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 60312-1, Vacuum cleaners for household use – Part 1: Dry vacuum cleaners – Methods

for measuring the performance

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 Replacement:
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.

Socket-outlets for accessories are loaded with a resistive load in accordance with the

marking. 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

Annex AA).

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

hydraulically pressed concrete paving slabs.
---------------------- Page: 11 ----------------------
– 10 – 60335-2-67 © IEC:2012
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 60312-1, 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
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 may 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 distinguished: fixed guards, interlocking moveable guards

and adjustable guards. Interlocking movable guards are required where frequent access is envisaged, while fixed

guards can be used where frequent access is not envisaged.
3.106
operator

person installing, operating, adjusting, maintaining, cleaning or moving the machine

3.107
test solution

solution which consists of 20 g of NaCl and 1 ml of a solution of 28 % by mass of dodecyl

sodium sulphate in each 8 l of water

Note 1 to entry: The chemical designation of dodecyl sodium sulphate is C H NaSO .

12 25 4
---------------------- Page: 12 ----------------------
60335-2-67 © IEC:2012 – 11 –
3.108
commercial use

intended use of machines covered by this standard, i.e. not intended for normal housekeeping

purposes by private persons but which may be a source of danger to the public
I.e. in particular that
– the machines may be used by cleaning contractors, cleaning staff, etc.;

– they are used in commercial or public premises (i.e. offices, shops, hotels, hospitals,

schools, etc.) or in industrial (plants, etc.) and light industrial (workshops, etc.)

environments.
Note 1 to entry: Commercial use is also called professional use.
4 General requi
...

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