IEC 60335-2-72:2012
(Main)Household and similar electrical appliances - Safety - Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use
Household and similar electrical appliances - Safety - Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use
IEC 60335-2-72:2012 deals with the safety of powered ride-on and powered walk-behind machines intended for commercial indoor or outdoor use for the following applications:
- sweeping,
- scrubbing,
- wet or dry pick-up,
- polishing,
- application of wax, sealing products and powder based detergents,
- shampooing of floors with an artificial surface. Their cleaning motion 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. They may be equipped with a traction drive system. 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 and
- battery powered motors. Battery powered machines may be equipped with a built-in battery charger. This third edition cancels and replaces the second edition published in 2002 and its Amendment 1 (2005). It constitutes a technical revision. The principal changes in this edition as compared with the second edition of IEC 60335-2-72 are as follows (minor changes are not listed). The standard has be revised completely and changed significantly, in particular with regard to the following clauses:
- the title has been changed for better distinction with regard to IEC 60335-2-67;
- the scope has been revised editorially to avoid misunderstandings;
- Clause 3 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;
- the markings and instructions (Clause 7) have been revised basically;
- a new Annex DD 'Emission of acoustical noise' was added;
- and a new Annex EE 'Emission of vibration' was added. Keywords: Floor treatment machine; walk-behind machines, traction drive.
This publication is to be read in conjunction with IEC 60335-1:2010.
Appareils électrodomestiques et analogues - Sécurité – Partie 2-72: Exigences particulières pour les machines de traitement des sols avec ou sans commande de dispositif de déplacement, à usage commercial
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Household and similar electrical appliances – Safety –
Part 2-72: Particular requirements for floor treatment machines with or without
traction drive, for commercial use
IEC 60335-2-72:2012(E)
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THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2012 IEC, Geneva, Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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IEC 60335-2-72
®
Edition 3.0 2012-03
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-72: Particular requirements for floor treatment machines with or without
traction drive, for commercial use
INTERNATIONAL
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COMMISSION
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Warning! Make sure that you obtained this publication from an authorized distributor.
® Registered trademark of the International Electrotechnical Commission
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– 2 – 60335-2-72 © IEC:2012(E)
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 10
4 General requirement . 13
5 General conditions for the tests . 13
6 Classification . 13
7 Marking and instructions . 14
8 Protection against access to live parts . 18
9 Starting of motor-operated appliances . 18
10 Power input and current . 18
11 Heating . 18
12 Void. 19
13 Leakage current and electric strength at operating temperature . 19
14 Transient overvoltages . 19
15 Moisture resistance . 19
16 Leakage current and electric strength . 20
17 Overload protection of transformers and associated circuits . 21
18 Endurance . 21
19 Abnormal operation . 21
20 Stability and mechanical hazards . 22
21 Mechanical strength . 27
22 Construction . 29
23 Internal wiring . 34
24 Components . 34
25 Supply connection and external flexible cords . 34
26 Terminals for external conductors . 35
27 Provision for earthing . 36
28 Screws and connections . 36
29 Clearances, creepage distances and solid insulation . 36
30 Resistance to heat and fire . 36
31 Resistance to rusting . 36
32 Radiation, toxicity and similar hazards . 36
Annexes . 41
Annex B (normative) Appliances powered by rechargeable batteries. 42
Annex AA (normative) Precast paving slabs . 48
Annex BB (normative) Requirements for internal combustion engine powered
machines using liquefied petroleum gas (LPG) . 49
Annex CC (normative) Falling-object protective structures (FOPS) – Dynamic test and
performance requirements . 52
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60335-2-72 © IEC:2012(E) – 3 –
Annex DD (informative) Emission of acoustical noise . 55
Annex EE (informative) . 58
Bibliography . 59
Figure 101 – Impact test apparatus . 37
Figure 102 – Apparatus for testing the abrasion resistance of current-carrying hoses . 38
Figure 103 – Apparatus for testing the resistance to flexing of current-carrying hoses . 39
Figure 104 – Configuration of the hose for the freezing treatment . 39
Figure 105 – Flexing positions for the hose after removal from the freezing cabinet . 40
Figure 106 – Warning symbol: Do not inhale exhaust fumes . 40
Figure B.101 – Forms of constructions for cleaning machines covered by Annex B . 43
Figure B.102 – Circuit for testing battery chargers (taken from IEC 60335-2-29) . 47
Figure CC.1 – Satisfactory protection by the overhead guard . 53
Figure CC.2 – Admissible deformation when the overhead guard is supported at all
sides . 54
Figure CC.3 – Admissible deformation when the overhead guard is supported at one
side . 54
Table 12 – Pull force and torque . 35
Table DD.1 – Determination of uncertainty . 57
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-72: Particular requirements for floor treatment machines
with or without traction drive, 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
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with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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6) All users should ensure that they have the latest edition of this publication.
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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 60335-2-72 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 third edition cancels and replaces the second edition published in 2002 and its
Amendment 1 (2005). It constitutes a technical revision.
The principal changes in this edition as compared with the second edition of IEC 60335-2-72
are as follows (minor changes are not listed):
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60335-2-72 © IEC:2012(E) – 5 –
The standard has be revised completely and changed significantly, in particular with regard to
the following clauses:
– the title has been changed for better distinction with regard to IEC 60335-2-67;
– the scope has been revised editorially to avoid misunderstandings;
– Clause 3 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;
– the markings and instructions (Clause 7) have been revised basically;
– a new Annex DD 'Emission of acoustical noise' was added; and
– a new Annex EE 'Emission of vibration' was added.
The text of this standard is based on the following documents:
FDIS Report on voting
61J/491/FDIS 61J/500/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 with or without traction drive, 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.
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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.
A bilingual version of this standard may be issued at a later date.
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.
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60335-2-72 © IEC:2012(E) – 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.
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– 8 – 60335-2-72 © IEC:2012(E)
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-72: Particular requirements for floor treatment machines
with or without traction drive, for commercial use
1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of powered ride-on and powered walk-
behind machines intended for commercial indoor or outdoor use for the following
applications:
– sweeping,
– scrubbing,
– wet or dry pick-up,
– polishing,
– application of wax, sealing products and powder based detergents,
– shampooing
of floors with an artificial surface.
Their cleaning motion is more linear than lateral or periodic.
NOTE 101 By contrast, the cleaning motion of machines covered by IEC 60335-2-67 is more lateral or periodic
than linear.
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 may be equipped with a traction drive system. 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
– floor treatment appliances for household use according to IEC 60335-2-10;
– floor treatment machines for commercial use according to IEC 60335-2-67;
– spray extraction machines for commercial use (IEC 60335-2-68);
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60335-2-72 © IEC:2012(E) – 9 –
– wet and dry vacuum cleaners, including power brush, for commercial use
(IEC 60335-2-69);
– road sweepers;
NOTE 103 In Europe, EN 13019 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 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 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;
– ride-on machines designed for transport over public roads can be subject to additional requirements (e.g.
lighting, license plate etc.).
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
IEC 62061, Safety of machinery – Functional safety of safety-related electrical, electronic and
programmable electronic control systems
ISO 3411, Earth moving machinery – Human physical dimensions of operators and minimum
operator space envelope
ISO 5353, Earth-moving machinery, and tractors and machinery for agriculture and forestry –
Seat index point
ISO 6344-2, Coated abrasives – Grain size analysis – Part 2: Determination of grain size
distribution of macrogrits P12 to P220
ISO 13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General
principles for design
ISO 13857, Safety of machinery – Safety distances to prevent hazard zones being reached by
the upper and lower limbs
ISO 25119 (all parts), Tractors and machinery for agriculture and forestry – Safety-related
parts of control systems
Replacement:
IEC 60068-2-78:2001, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat,
steady state
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– 10 – 60335-2-72 © IEC:2012(E)
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 in
accordance with the manufacturer’s instructions. For machines provided with a seat or an
operator platform, a mass of 75 kg secured in position at the appropriate height is used to
simulate the operator in the most unfavourable position.
Socket-outlets for accessories are loaded with a resistive load in accordance with the
marking.
Operational functions include all treatment and driving functions.
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 and sweeping machines are operated on a surface of hydraulically
pressed concrete paving slabs (see Annex AA) intermittently at least 30 min switched on, and
for a period of 5 min switched off.
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 flooring 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.
The solution tank is filled and the machine is operated over a period of 10 min.
3.101
traction drive
system used to propel the machine, e.g. by powered wheels
Traction by the effect of rotating brushes is not included.
3.102
walk-behind machine
machine with or without a traction drive designed to be controlled by the operator walking
behind the machine
It may be equipped with a detachable sulky.
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60335-2-72 © IEC:2012(E) – 11 –
3.103
ride-on machine
machine with a traction drive and with an operator seat or a platform on which the operator
is sitting/standing during operation
3.104
sulky (trailer)
removable trailing seat or stand-on platform with wheels or skids designed to carry an
operator in a sitting or standing position, while controlling a walk-behind machine with
traction drive
3.105
wet cleaning machine
machine for applying and sucking up liquids
3.106
water-suction cleaning machine
machine for sucking up liquids
3.107
motorized cleaning head
hand-held or hand-guided cleaning device connected to the machine, with an integrated
electrical motor
Note 1 to entry: The main cleaning head permanently attached is not regarded as a motorized cleaning head.
3.108
hopper
container to store picked up debris
3.109
parking brake
means, actuated by the operator in the normal operating position, to prevent a stationary
machine from moving
3.110
service brake
means for decelerating and stopping a machine, with a traction drive, from its ground travel
speed
3.111
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) or seat
switches.
3.112
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.
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– 12 – 60335-2-72 © IEC:2012(E)
3.113
operator
person installing, operating,
...
IEC 60335-2-72
®
Edition 3.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 2-72: Particular requirements for floor treatment machines with or without
traction drive, for commercial use
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-72: Exigences particulières pour les machines de traitement des sols
avec ou sans commande de dispositif de déplacement, à usage commercial
IEC 60335-2-72:2012-03(en-fr)
---------------------- Page: 1 ----------------------
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IEC 60335-2-72
®
Edition 3.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 2-72: Particular requirements for floor treatment machines with or without
traction drive, for commercial use
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-72: Exigences particulières pour les machines de traitement des sols
avec ou sans commande de dispositif de déplacement, à usage commercial
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.080 ISBN 978-2-8322-0069-8
Warning! Make sure that you obtained this publication from an authorized distributor.
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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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– 2 – IEC 60335-2-72:2012 © IEC 2012
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 10
4 General requirement . 13
5 General conditions for the tests . 13
6 Classification . 13
7 Marking and instructions . 14
8 Protection against access to live parts . 18
9 Starting of motor-operated appliances . 18
10 Power input and current . 18
11 Heating . 18
12 Void. 19
13 Leakage current and electric strength at operating temperature . 19
14 Transient overvoltages . 19
15 Moisture resistance . 19
16 Leakage current and electric strength . 20
17 Overload protection of transformers and associated circuits . 21
18 Endurance . 21
19 Abnormal operation . 21
20 Stability and mechanical hazards . 22
21 Mechanical strength . 27
22 Construction . 29
23 Internal wiring . 34
24 Components . 34
25 Supply connection and external flexible cords . 34
26 Terminals for external conductors . 35
27 Provision for earthing . 36
28 Screws and connections . 36
29 Clearances, creepage distances and solid insulation . 36
30 Resistance to heat and fire . 36
31 Resistance to rusting . 36
32 Radiation, toxicity and similar hazards . 36
Annexes . 41
Annex B (normative) Appliances powered by rechargeable batteries. 42
Annex AA (normative) Precast paving slabs . 48
Annex BB (normative) Requirements for internal combustion engine powered
machines using liquefied petroleum gas (LPG) . 49
Annex CC (normative) Falling-object protective structures (FOPS) – Dynamic test and
performance requirements . 52
Annex DD (informative) Emission of acoustical noise . 55
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IEC 60335-2-72:2012 © IEC 2012 – 3 –
Annex EE (informative) . 58
Bibliography . 59
Figure 101 – Impact test apparatus . 37
Figure 102 – Apparatus for testing the abrasion resistance of current-carrying hoses . 38
Figure 103 – Apparatus for testing the resistance to flexing of current-carrying hoses . 39
Figure 104 – Configuration of the hose for the freezing treatment . 39
Figure 105 – Flexing positions for the hose after removal from the freezing cabinet . 40
Figure 106 – Warning symbol: Do not inhale exhaust fumes . 40
Figure B.101 – Forms of constructions for cleaning machines covered by Annex B . 43
Figure B.102 – Circuit for testing battery chargers (taken from IEC 60335-2-29) . 47
Figure CC.1 – Satisfactory protection by the overhead guard . 53
Figure CC.2 – Admissible deformation when the overhead guard is supported at all
sides . 54
Figure CC.3 – Admissible deformation when the overhead guard is supported at one
side . 54
Table 12 – Pull force and torque . 35
Table DD.1 – Determination of uncertainty . 57
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– 4 – IEC 60335-2-72:2012 © IEC 2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-72: Particular requirements for floor treatment machines
with or without traction drive, 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 60335-2-72 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 third edition cancels and replaces the second edition published in 2002 and its
Amendment 1 (2005). It constitutes a technical revision.
The principal changes in this edition as compared with the second edition of IEC 60335-2-72
are as follows (minor changes are not listed):
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IEC 60335-2-72:2012 © IEC 2012 – 5 –
The standard has be revised completely and changed significantly, in particular with regard to
the following clauses:
– the title has been changed for better distinction with regard to IEC 60335-2-67;
– the scope has been revised editorially to avoid misunderstandings;
– Clause 3 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;
– the markings and instructions (Clause 7) have been revised basically;
– a new Annex DD 'Emission of acoustical noise' was added; and
– a new Annex EE 'Emission of vibration' was added.
The text of this standard is based on the following documents:
FDIS Report on voting
61J/491/FDIS 61J/500/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 with or without traction drive, 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.
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– 6 – IEC 60335-2-72:2012 © 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.
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IEC 60335-2-72:2012 © 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.
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– 8 – IEC 60335-2-72:2012 © IEC 2012
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-72: Particular requirements for floor treatment machines
with or without traction drive, for commercial use
1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of powered ride-on and powered walk-
behind machines intended for commercial indoor or outdoor use for the following
applications:
– sweeping,
– scrubbing,
– wet or dry pick-up,
– polishing,
– application of wax, sealing products and powder based detergents,
– shampooing
of floors with an artificial surface.
Their cleaning motion is more linear than lateral or periodic.
NOTE 101 By contrast, the cleaning motion of machines covered by IEC 60335-2-67 is more lateral or periodic
than linear.
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 may be equipped with a traction drive system. 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
– floor treatment appliances for household use according to IEC 60335-2-10;
– floor treatment machines for commercial use according to IEC 60335-2-67;
– spray extraction machines for commercial use (IEC 60335-2-68);
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IEC 60335-2-72:2012 © IEC 2012 – 9 –
– wet and dry vacuum cleaners, including power brush, for commercial use
(IEC 60335-2-69);
– road sweepers;
NOTE 103 In Europe, EN 13019 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 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 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;
– ride-on machines designed for transport over public roads can be subject to additional requirements (e.g.
lighting, license plate etc.).
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
IEC 62061, Safety of machinery – Functional safety of safety-related electrical, electronic and
programmable electronic control systems
ISO 3411, Earth moving machinery – Human physical dimensions of operators and minimum
operator space envelope
ISO 5353, Earth-moving machinery, and tractors and machinery for agriculture and forestry –
Seat index point
ISO 6344-2, Coated abrasives – Grain size analysis – Part 2: Determination of grain size
distribution of macrogrits P12 to P220
ISO 13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General
principles for design
ISO 13857, Safety of machinery – Safety distances to prevent hazard zones being reached by
the upper and lower limbs
ISO 25119 (all parts), Tractors and machinery for agriculture and forestry – Safety-related
parts of control systems
Replacement:
IEC 60068-2-78:2001, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat,
steady state
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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 in
accordance with the manufacturer’s instructions. For machines provided with a seat or an
operator platform, a mass of 75 kg secured in position at the appropriate height is used to
simulate the operator in the most unfavourable position.
Socket-outlets for accessories are loaded with a resistive load in accordance with the
marking.
Operational functions include all treatment and driving functions.
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 and sweeping machines are operated on a surface of hydraulically
pressed concrete paving slabs (see Annex AA) intermittently at least 30 min switched on, and
for a period of 5 min switched off.
An alternative is a smooth concrete area of a surface consistency comparable with
hydraulically pressed concrete paving sla
...
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