EN 60335-2-72:2009

SLOVENSKI STANDARD
01-december-2009
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Household and similar electrical appliances - Safety -- Part 2-72: Particular requirements
for automatic machines for floor treatment for commercial and industrial use
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke -- Teil 2-72:
Besondere Anforderungen für automatische Maschinen zur Bodenbehandlung für
gewerbliche und industrielle Zwecke
Appareils électrodomestiques et analogues - Sécurité -- Partie 2-72: Règles particulières
pour les appareils automatiques de traitement des sols à usage industriel et commercial
Ta slovenski standard je istoveten z: EN 60335-2-72:2009
ICS:
97.080 Aparati za nego tal Floor treatment appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60335-2-72
NORME EUROPÉENNE
September 2009
EUROPÄISCHE NORM
ICS 97.080 Supersedes EN 60335-2-72:1998 + A1:2000

English version
Household and similar electrical appliances -
Safety -
Part 2-72: Particular requirements for automatic machines
for floor treatment for commercial use
(IEC 60335-2-72:2002 + A1:2005, modified)

Appareils électrodomestiques  Sicherheit elektrischer Geräte
et analogues - für den Hausgebrauch
Sécurité - und ähnliche Zwecke -
Partie 2-72: Règles particulières Teil 2-72: Besondere Anforderungen
pour les machines automatiques für automatische Maschinen
de traitements des sols zur Bodenbehandlung
à usage commercial für den gewerblichen Gebrauch
(CEI 60335-2-72:2002 + A1:2005, (IEC 60335-2-72:2002 + A1:2005,
modifiés) modifiziert)
This European Standard was approved by CENELEC on 2009-09-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels

© 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60335-2-72:2009 E
Foreword
The text of the International Standard IEC 60335-2-72:2002 and its amendment A1:2005, prepared by
SC 61J, Electrical motor-operated cleaning appliances for commercial use, of IEC TC 61, Safety of
household and similar electrical appliances, together with common modifications prepared by the
Technical Committee CENELEC TC 61, Safety of household and similar electrical appliances, was
submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 60335-2-72 on
2009-09-01.
This European Standard supersedes EN 60335-2-72:1998 + A1:2000.
In this document, the modifications to the International Standard IEC 60335-2-72:2002 + A1:2005 are
identified by a vertical line in the left margin.
The following dates are applicable:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2009-12-29
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-12-29
This Part 2 has to be used in conjunction with EN 60335-1, Household and similar electrical appliances –
Safety – Part 1: General requirements. It was established on the basis of the 2002 edition of that
standard. Amendments and revisions of Part 1 have also to be taken into account and the dates when
such changes become applicable will be stated in the relevant amendment or revision of Part 1.
This Part 2 supplements or modifies the corresponding clauses of EN 60335-1, so as to convert it into the
European Standard: Safety requirements for automatic machines for floor treatment for commercial use.
When a particular subclause of Part 1 is not mentioned in this Part 2, that subclause applies. When this
standard states "addition", "modification" or "replacement", the relevant text of Part 1 is to be adapted
accordingly.
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of
EC Directives 98/37/EEC and 2006/42/EC. See Annex ZZ.
NOTE 1 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.;
– subclauses, notes and annexes that are additional to those in the IEC standard are prefixed with the letter Z.
NOTE 2 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.
– 3 – EN 60335-2-72:2009
There are no special national conditions causing a deviation from this European Standard, other than
those listed in Annex ZA to EN 60335-1.
There are no national deviations from this European Standard, other than those listed in Annex ZB to
EN 60335-1.
_____________
Contents
Introduction .6
1 Scope .7
2 Normative references .8
3 Definitions .9
4 General requirement . 11
5 General conditions for the tests . 11
6 Classification . 12
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 . 17
17 Overload protection of transformers and associated circuits . 17
18 Endurance . 18
19 Abnormal operation . 18
20 Stability and mechanical hazards . 19
21 Mechanical strength . 24
22 Construction . 26
23 Internal wiring . 29
24 Components . 29
25 Supply connection and external flexible cords . 29
26 Terminals for external conductors . 30
27 Provisions for earthing . 30
28 Screws and connections . 30
29 Clearances, creepage distances and solid insulation . 30
30 Resistance to heat and fire . 31
31 Resistance to rusting . 31
32 Radiation, toxicity and similar hazards . 31

Annex B (normative) Appliances powered by rechargeable batteries . 36
Annex AA (normative) Precast paving slabs . 37
Annex BB (normative) Measurement of acoustical noise . 38
Annex CC (normative) Falling-object protective structures (FOPS) – Dynamic test and
performance requirements . 41
Annex ZAA (normative) Requirements for internal combustion engine powered machines using
liquefied petroleum gas (LPG) . 44
Annex ZC (normative) Normative references to international publications with their
corresponding European publications . 47

– 5 – EN 60335-2-72:2009
Annex ZE (informative) Specific additional requirements for appliances and machines intended
for commercial use . 49
Annex ZZ (informative) Coverage of Essential Requirements of EC Directives . 49
Annex ZZA (informative) Coverage of Essential Requirements of Directive 98/37/EC . 49
Annex ZZB (informative) Coverage of Essential Requirements of Directive 2006/42/EC . 49

Bibliography . 50

Figure 101 – Impact test apparatus . 32
Figure 102 – Apparatus for testing the abrasion resistance of current-carrying hoses . 33
Figure 103 – Apparatus for testing the resistance to flexing of current-carrying hoses . 34
Figure 104 – Configuration of the hose for the freezing treatment . 34
Figure 105 – Flexing positions for the hose after removal from the freezing cabinet . 35
Figure CC.1 – Satisfactory protection by the overhead guard . 42
Figure CC.2 – Admissible deformation when the overhead guard is supported at all sides . 43
Figure CC.3 – Admissible deformation when the overhead guard is supported at one side . 43

Introduction
It has been assumed in the drafting of this European 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 machines.
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 machine is connected to the supply mains. However, national
wiring rules may differ.
If a machine within the scope of this standard also incorporates functions that are covered by another
Part 2 of EN 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.
This standard is a product family standard dealing with the safety of machines and takes precedence over
horizontal and generic standards covering the same subject.
A machine 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.
A machine 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.

– 7 – EN 60335-2-72:2009
Household and similar electrical appliances –
Safety –
Part 2-72: Particular requirements for automatic machines
for floor treatment for commercial use

1 Scope
This clause of Part 1 is replaced by the following.
This European Standard deals with the safety of powered ride-on and 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 Z101 By contrast, the cleaning motion of machines covered by EN 60335-2-67 is more lateral or periodic than linear.
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 Part 2 applies in conjunction with EN 60335-1:2002 and its amendments, which is referred to in this
text as “Part 1”. This Part 2 supplements or modifies the corresponding clauses of Part 1 as indicated in
the text.
This standard does not apply to
– machines designed to be part of a production process;
– machines designed for use in corrosive or explosive environments (dust, vapour or gas);
– machines designed for use on slopes with a gradient exceeding 20 %;
– machines equipped with a power take-off (PTO);
– machines designed for picking up hazardous dusts as defined in EN 60335-2-69, inflammable
substances, or aflame particles;
– floor treatment machines for commercial use as covered by EN 60335-2-67;
– spray extraction appliances;
NOTE Z102 EN 60335-2-68 covers spray extraction appliances for commercial use.
– wet and dry vacuum cleaners;
NOTE Z103 EN 60335-2-69 covers wet and dry vacuum cleaners for commercial use.
– road sweepers;
NOTE Z104 EN 15429-1 covers road sweepers.
– park, garden, and agricultural machines;
NOTE Z105 EN ISO 4254-1 covers agricultural machinery, EN 836 covers powered lawnmowers.
– machines designed for use in vehicles or on board of ships or aircraft.
NOTE Z106 Attention is drawn to the fact that
– in many countries additional requirements on the safe use of the equipment covered may 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 may be subject to additional requirements (e.g. lighting, number
plate etc.).
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
IEC 60312, Vacuum cleaners for household use – Methods of measuring the performance
IEC 60335-2-67, Household and similar electrical appliances – Safety – Part 2-67: Particular
requirements for floor treatment and floor cleaning machines, for industrial and commercial use
IEC 60335-2-69, Household and similar electrical appliances – Safety – Part 2-69: Particular
requirements for wet and dry vacuum cleaners, including power brush, for industrial and commercial use
NOTE Normative Annex AA of IEC 60335-2-69 contains particular requirements for vacuum cleaners, suction sweeping machines
and dust extractors for the collection of dusts hazardous to health.
ISO 2631-1, Mechanical vibration and shock – Evaluation of human exposure to whole-body vibration –
Part 1: General requirements
ISO 3411, Earth moving machinery – Human physical dimensions of operators and minimum operator
space envelope
ISO 3471, Earth-moving machinery – Roll-over protective structures – Laboratory tests and performance
requirements
ISO 3743-1, Acoustics – Determination of sound power levels of noise sources – Engineering methods
for small, movable sources in reverberant fields – Part 1: Comparison method for hard-walled test rooms
ISO 3744, Acoustics – Determination of sound power levels of noise sources using sound pressure –
Engineering method in an essentially free field over a reflecting plane
ISO 4871, Acoustics – Declaration and verification of noise emission values of machinery and equipment
ISO 5349-1, Mechanical vibration – Measurement and evaluation of human exposure to hand-transmitted
vibration – Part 1: General requirements
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 7574-1, Acoustics - Statistical methods for determining and verifying stated noise emission values of
machinery and equipment; Part 1: General considerations and definitions

– 9 – EN 60335-2-72:2009
ISO 7574-4, Acoustics - statistical methods for determining and verifying stated noise emission values of
machinery and equipment; Part 4: methods for stated values for batches of machines
ISO 11201, Acoustics – Noise emitted by machinery and equipment – Measurement of emission sound
pressure levels at a work station and at other specified positions – Engineering method in an essentially
free field over a reflecting plane
ISO 11688-1, Acoustics – Recommended practice for the design of low-noise machinery and equipment –
Part 1: Planning
ISO 13857, Safety of machinery - Safety distances to prevent hazard zones being reached by the upper
and lower limbs
3 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
Power 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.Z103:
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 Void
3.1.9.103 Polishing and dry buffing machines are operated as follows.
PVC-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 shall not be taken as
normal operation but shall be averaged by extending measurements over a period of at least 10 min.
3.1.9.104 Carpet shampooers are operated on a test surface consisting of a carpet, in accordance with
EN 60312, 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.
3.1.9.Z101 Liquid containers of machines for wet scrubbing and shampooing are filled to the highest
level indicated by the manufacturer.
3.1.9.Z102 Additional weights delivered with the machine are fitted before operation.
3.1.9.Z103 Machines that are designed to have a sulky are tested with the sulky including the weight of
a standard operator (75 kg) or without the sulky, whichever is the most unfavourable condition.

3.Z101
wet cleaning machine
machine for application and sucking up of cleaning liquids
3.Z102
water-suction cleaning machine
machine for applying and sucking up a water-based cleaning solution
3.Z103
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
3.Z104
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.Z105
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.Z106
motorized cleaning head
hand-held or hand-guided cleaning device connected to the machine, with an integrated electrical motor
3.Z107
hopper
container to store picked up debris
3.Z108
traction drive
means (system) used to transmit power from the power source to the ground drive means. Traction by
the effect of rotating brushes is not included
3.Z109
parking brake
means, actuated by the operator in the normal operating position, to prevent a stationary machine from
moving
3.Z110
service brake
means for decelerating and stopping a machine, with a traction drive, from its ground travel speed
3.Z111
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 Such devices may be, for example, continuous action controls ("hold-to-run" controls) or seat switches
3.Z112
guard
part of the machine specifically designed to provide protection by means of a physical barrier
3.Z113
operator
person installing, operating, adjusting, maintaining, cleaning or moving the machine

– 11 – EN 60335-2-72:2009
3.Z114
gross vehicle weight (GVW)
maximum allowable fully laden weight of the machine and its payload, as ready for use
3.Z115
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 The chemical designation of dodecyl sodium sulphate is C12H25NaSO4.
3.Z116
level surface
plane with a gradient up to and including 2 %
3.Z117
slope
inclined plane with a gradient greater than 2 % but not exceeding 20 %
3.Z118
risk
probability of being exposed to an injury or damage to health
3.Z119
commercial use
intended use of machines covered by this standard in a professional way
For the purpose of this standard commercial use may be read as not intended for domestic use
4 General requirement
This clause of Part 1 is applicable except as follows:
Replace the first paragraph by the following:
Machines shall be constructed so that they function safely so as to cause no danger to persons or
surroundings during normal use, even in the event of carelessness, and during installation, adjusting,
maintenance, cleaning, repairing or transportation.
Addition:
For the purpose of this standard, the term ‘appliance’ as used in Part 1 is to be read as ‘machine’.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
Addition:
5.Z101 The test solution is to be stored in a cool atmosphere and used within seven days after its
preparation.
5.Z102 The GVW includes, if applicable, full clean water tanks, empty dirty water tanks (half full for
recycling systems), empty dust bags, hopper loaded at rated capacity, largest recommended batteries,
all options such as cords, hoses, wands, cleaning agents and brushes.
For ride-on machines the GVW includes a standard operator, weighing 75 kg.

6 Classification
This clause of Part 1 is applicable except as follows.
6.1 Replacement:
Machines shall be one of the following classes with respect to the protection against contact with live
parts:
- class I,
- class II, or
- class III.
Compliance is checked by inspection and by the relevant tests.
6.2 Addition:
Mains supplied and battery powered machines for indoor use intended for dry cleaning only, shall be at
least IPX0. Other machines shall be at least IPX3.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
th
7.1 Replace the 4 dashed item as follows:
– the business name and address of the manufacturer and, if applicable, his authorized representative;
any address shall be sufficient to ensure postal contact;
Addition:
Machines shall be marked in addition with the following:
– serial number, if any;
– designation of the machine, may be achieved by a combination of letters and/or numbers;
– designation of series or type, allowing the technical identification of the product. This may be
achieved by a combination of letters and/or numbers and may be combined with the designation of
machine;
– year of construction, i.e. the year in which the manufacturing process is completed;
– GVW of the machine, in kg.
7.1.Z101 Motorized cleaning heads shall be marked with their model or type reference.
Compliance is checked by inspection.
7.1.Z102 Power outlets for accessories shall be marked with the maximum load in watts on the power
outlet or close to it.
Compliance is checked by inspection.
7.6 Addition:
x %
maximum gradient ‘x’ during normal use

– 13 – EN 60335-2-72:2009
7.12 Addition:
The front cover of the instructions shall include the substance of the following warning:
WARNING Read the instructions before using the machine.
This wording may be replaced by symbols 0434 and either 1641 or 0790 of ISO 7000.
The words “Original instructions” shall appear on the language version(s) verified by the manufacturer.
The instructions shall contain at least the following:
– the business name and full address of the manufacturer and, if applicable, his authorized
representative;
– designation of series or type of the machine as marked on the machine itself, except for the serial
number;
– the general description of the machine;
– the GVW of the machine in kilograms;
– the transportation weight of the machine in kilograms, which includes the batteries but excludes
options (e.g. driver cabin, FOPS, second and third side broom, front mounted sweeping attachment
for scrubbers), fresh water (in case of scrubbers or combined machines), and the weight of a
standard operator (75 kg);
– the intended use of the machine and the auxiliary equipment as covered by the scope of this
standard;
– the meaning of the symbols used on the machine and in the instructions;
– drawings, diagrams, descriptions and explanations necessary for the safe use, maintenance and
repair of the machine and for checking its correct functioning;
– technical data including the markings on the machine;
– information regarding putting into service, safe operation, handling, transportation, and storage of the
machine taking into account its GVW;
– instructions to enable adjustment and maintenance to be carried out safely, including the protective
measures that should be taken during these operations;
– the conditions in which the machine meets the requirement of stability during use, transportation,
assembly, dismantling when out of service, testing or foreseeable breakdowns;
– the operating method to be followed in the event of accident (e.g. contact with detergents) or
breakdown (to prevent unsafe actions).
The instructions shall indicate the type and frequency of inspections and maintenance required for safe
operation, including preventive maintenance measures. They shall, if applicable, indicate the parts
subject to wear and the criteria for replacement if they affect the health and safety of the operator.
In addition, the instructions shall give the following information, if applicable:
– for battery operated machines, instructions regarding the precautions to be taken for safe charging;
– precautions to be taken when changing brushes or other attachments;
– information on the detergents or other liquids that may be used including the choice and use of
Personal Protective Equipment (PPE);
– essential characteristics of auxiliary equipment which may be fitted to the machine;
– information regarding safe disposal of batteries;
– information on the seat adjustment and related parts.
For machines having a traction drive and a GVW exceeding 100 kg, the instructions shall also include
the substance of the following:

– in order to prevent unauthorized use of the machine, the power source shall be switched off or locked,
for example by removing the key of the main switch or the ignition key.
For machines with a traction drive that are designed to be used on slopes, the instructions shall also
include the substance of the following:
– machines left unattended shall be secured against unintentional movement.
7.12.Z101 The instructions shall include information on airborne noise emission as indicated in BB.2.7.
7.12.Z102 The instructions shall give the following information:
– for all machines: the vibration total value to which the hand-arm system is subjected, measured in
accordance with ISO 5349-1 for arm vibrations, the machine being supplied at rated voltage or at the
maximum rated voltage for machines with a range of voltages, if it exceeds 2,5 m/s². Where this
value does not exceed 2,5 m/s², this shall be mentioned;
– additionally, for ride-on machines and walk-behind machines with sulky: the highest root mean
square value of weighted acceleration to which the whole body is subjected, measured in accordance
with ISO 2631-1, the machine being supplied at rated voltage and operated under normal
operation, if it exceeds 0,5 m/s². Where this value does not exceed 0,5 m/s², this shall be mentioned;
– the uncertainty surrounding these values.
These values shall be either those actually measured for the machine in question or those established on
the basis of measurements taken for a technically comparable machine which is representative of the
machine being produced.
Regarding operating conditions during measurement and the methods used for measurement, the
reference of the harmonised standard applied (EN 60335-2-72) must be specified.
7.12.Z103 The instructions shall include warnings concerning ways in which the machine shall not be
used that experience has shown might occur. At least, it shall include the substance of the following
warnings, if applicable.
– WARNING Operators shall be adequately instructed on the use of these machines.
– WARNING Always ensure that the safety support is installed before working beneath hopper.
– WARNING This machine is for dry use only.
– CAUTION This machine is for indoor use only.
– CAUTION This machine shall be stored indoors only.
– A warning that the machine shall be disconnected from its power source during cleaning or
maintenance and when replacing parts or converting the machine to another function:
• for mains operated machines by removing the plug from the socket-outlet;
• for battery operated machines by safely disconnecting at least the non-earthed pole of the battery
or by an equivalent method (disconnecting device);
• for internal combustion engine powered machines by removing the ignition key and by
disconnecting the battery.
– WARNING Do not use on surfaces having a gradient exceeding that marked on the machine.
If the machine is marked for use on surfaces having a gradient up to and including 2 %, this warning shall
be replaced by the following:
– WARNING Do not use on slopes.
Instructions for ride-on machines fitted with hazardous exposed moving brushes shall also include the
substance of the following:
– WARNING Always ensure that the yellow pulsating or rotating light is switched on when the
hazardous exposed side brushes are moving.

– 15 – EN 60335-2-72:2009
Instructions for mains operated machines shall also include the substance of the following:
– WARNING Do not allow the supply cord to come into contact with the rotating brushes.
Instructions for machines having a current-carrying hose for dry suction, operating at other than safety
extra-low voltage, shall also include the substance of the following:
– WARNING This hose contains electrical connections: do not use it to collect water and do not
immerse in water for cleaning.
Instructions for ride-on machines shall also include the substance of the following, if applicable:
– WARNING Do not use the machine without a falling object protective structure (FOPS) in areas
where it is likely that the operator is hit by falling objects.
8 Protection against access to live parts
This clause of Part 1 is applicable except as follows.
8.1 Addition:
Water and water-borne cleaning agents are considered conductive.
[addition to 8.1.4 deleted]
9 Starting of motor-operated appliances
This clause of Part 1 is applicable except as follows.
It shall only be possible to start the machine by intended actuation of a control device provided for the
purpose. The same requirement applies when restarting the machine after a stoppage, whatever the
cause.
NOTE This requirement does not apply to components such as suction units, pumps, etc.
Compliance is checked by inspection and by test.
10 Power input and current
This clause of Part 1 is applicable.
11 Heating
This clause of Part 1 is applicable except as follows.
11.3 Addition:
If it is necessary to disassemble the machine for fitting these thermo-couples and related wiring, the input
shall be measured before and after fitting, at the lowest possible load, for example, with closed suction
openings, with brushes not in contact with the floor, with declutched drive, etc., to check if the assembling
has been accomplished properly.
11.5 Addition:
The normal operation may be simulated by applying an appropriate braking equipment.
For battery supplied machines the test is carried out commencing with a fully charged battery.

11.7 Addition:
Machines are operated until steady conditions are established.
12 Void
13 Leakage current and electric strength at operating temperature
This clause of Part 1 is applicable except as follows.
13.2 Addition:
For class I appliances where several motors operate at the same time, the leakage current shall not
exceed 3,5 mA.
14 Transient overvoltages
This clause of Part 1 is applicable.
15 Moisture resistance
This clause of Part 1 is applicable except as follows.
15.1 Modification:
Replace the first sentence by the following:
The enclosure of the machine shall provide the degree of protection against moisture in accordance with
the classification of the machine, except for batteries.
Addition:
For mains supplied machines used outdoors, the tests referred to in 15.1.1 shall be carried out with
suction devices operating.
15.2 Addition:
For these tests detachable cords shall be removed. The machine is tilted until it falls into a stable position
on a horizontal surface.
All machines with a liquid container shall be subjected to the overflow test using the test solution.
Mains supplied machines including liquid containers, with a GVW up to 100 kg, are tilted with the full
container into the most unfavourable horizontal position causing wetting of live parts by liquid flowing out
of tanks or containers, and left in this position for 5 min.
After these tests:
– wet cleaning machines, except shampooing machines, are operated 10 min under normal
operation on a floor of paving slabs with a smooth surface that are fastened to the bottom of a tray.
At the beginning of the test the tray is filled with the test solution to a level of approximately 5 mm
above the surface of the floor;
– shampooing machines are operated 20 min under normal operation.

– 17 – EN 60335-2-72:2009
Motorized cleaning heads of water-suction cleaning machines are placed in a tray, the base of which
is level with the surface supporting the machine. The tray is filled with the test solution to a level of 5 mm
above its base, this level being maintained throughout the test. The machine including the motorized
cleaning head is operated until its liquid container is completely full and afterwards for a further 5 min.
After each of these tests, the machine shall withstand the electric strength test of 16.3.
There shall be no trace of liquid on insulation that reduces the clearances or creepage distances below
the values specified in Clause 29.
15.101 The insulation of motorized cleaning heads of water suction cleaning machines shall be
resistant to the mechanical impact of picked up debris and sucked up liquids expected under normal use.
The following test is not applicable to motorized cleaning heads of class III construction having a
working voltage up to 24 V.
Compliance is checked by the following four tests.
The motorized cleaning head is subjected to an impact test as described in IEC 60068-2-75, the value
of the impact being 2 J. The motorized cleaning head is rigidly supported and three blows are applied to
every point of the enclosure that is likely to be weak.
It is then subjected to the free fall test procedure 1 of IEC 60068-2-32. It is dropped 4 000 times from a
height of 100 mm onto a steel plate having a thickness of not less than 15 mm. It is dropped
– 1 000 times on its right side;
– 1 000 times on its left side;
– 1 000 times on its front face;
– 1 000 times on its cleaning surface.
The motorized cleaning head is then subjected to the test described in 14.2.7 of IEC 60529, using the
test solution.
The motorized cleaning head shall then withstand the electric strength test of 16.3, the voltage being
applied between the live parts and the test solution. There shall be no trace of saline solution on
insulation that reduces the clearances and creepage distances below the values specified in Clause 29.
16 Leakage current and electric strength
This clause of Part 1 is applicable except as follows.
16.3 Addition:
Current-carrying hoses, except for their electrical connections, are immersed for 1 h in a saline solution of
water containing approximately 1 % NaCl, at a temperature of 20 °C ± 5 °C. While the hose is still
immersed, a voltage of 2 000 V is applied for 5 min between each conductor and all the other conductors
connected together. A voltage of 3 000 V is then applied for 1 min between all the conductors and the
saline solution.
17 Overload protection of transformers and associated circuits
This clause of Part 1 is applicable except as follows:

17.Z101 For battery powered machines each circuit shall be protected against short-circuit or overload
by a protective device, for example by fuses, overcurrent switches, protectors with relays or contactors.
The protective device shall be located close to the point of feeding the circuit. If this is impossible the
unprotected length of the wiring shall be as short as possible.
A single protective device may be used for more than on
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