IEC 60335-2-67:2002

IEC 60335-2-67
Edition 3.1 2005-11
INTERNATIONAL
STANDARD
Household and similar electrical appliances – Safety –
Part 2-67: Particular requirements for floor treatment and floor cleaning
machines, for industrial and commercial use

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IEC 60335-2-67
Edition 3.1 2005-11
INTERNATIONAL
STANDARD
Household and similar electrical appliances – Safety –
Part 2-67: Particular requirements for floor treatment and floor cleaning
machines, for industrial and commercial use

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
CJ
ICS 23.080; 91.140.65 ISBN 2-8318-8307-5

– 2 – 60335-2-67  IEC:2002+A1:2005(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references .8
3 Definitions .8
4 General requirement.9
5 General conditions for the tests .9
6 Classification.9
7 Marking and instructions.9
8 Protection against access to live parts.11
9 Starting of motor-operated appliances .12
10 Power input and current .12
11 Heating .12
12 Void.12
13 Leakage current and electric strength at operating temperature.12
14 Transient overvoltages .12
15 Moisture resistance .13
16 Leakage current and electric strength.14
17 Overload protection of transformers and associated circuits .14
18 Endurance.14
19 Abnormal operation .15
20 Stability and mechanical hazards .15
21 Mechanical strength .16
22 Construction .18
23 Internal wiring.19
24 Components .19
25 Supply connection and external flexible cords .20
26 Terminals for external conductors.23
27 Provision for earthing .23
28 Screws and connections .23
29 Clearances, creepage distances and solid insulation .23
30 Resistance to heat and fire.23
31 Resistance to rusting.24
32 Radiation, toxicity and similar hazards.24

Annexes .25
Annex AA (normative) Precast concrete flags .25

Bibliography.26

60335-2-67  IEC:2002+A1:2005(E) – 3 –
Figure 101 – Impact test apparatus.24
Figure 102 – Apparatus for testing the abrasion resistance of current-carrying hoses .21
Figure 103 – Apparatus for testing the resistance to flexing of current-carrying hoses .22
Figure 104 – Configuration of the hose for the freezing treatment .22
Figure 105 – Flexing positions for the hose after removal from the freezing cabinet.23

– 4 – 60335-2-67 © IEC:2002+A1:2005(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-67: Particular requirements for floor treatment
and floor cleaning machines, for industrial and 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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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.
This part of International Standard IEC 60335 has been prepared by sub-committee 61J:
Electrical motor-operated cleaning appliances for industrial use, of IEC technical committee 61:
Safety of household and similar electrical appliances.
This consolidated version of IEC 60335-2-67 consists of the third edition (2002) [documents
61J/127/FDIS and 61J/132/RVD] and its amendment 1 (2005) [documents 61J/196/FDIS and
61J/209/RVD].
The technical content is therefore identical to the base edition and its amendment and has
been prepared for user convenience.
It bears the edition number 3.1.
A vertical line in the margin shows where the base publication has been modified by
amendment 1.
60335-2-67  IEC:2002+A1:2005(E) – 5 –
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 fourth edition (2001) 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 electric floor treatment
and floor cleaning machines, for industrial and 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.
The following differences exist in the countries indicated below.
– Clause 7.12 No requirements for sound and vibration markings exist (USA).
– 25.7: PVC-cords may not be suitable for operation outdoors at low temperatures (Finland, Sweden);
– 25.14: Flexing test is not conducted (U.S.A.);
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the maintenance result 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 publication may be issued at a later date.

– 6 – 60335-2-67  IEC:2002+A1:2005(E)
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.
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.
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.
60335-2-67  IEC:2002+A1:2005(E) – 7 –
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-67: Particular requirements for floor treatment
and floor cleaning machines, for industrial and commercial use

1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of electric motor-operated appliances
primarily designed for industrial and commercial use, with or without attachments, including
appliances incorporating wet and/or dry suction, their rated voltage being not more than
250 V for single-phase appliances and 480 V for other appliances. Such appliances may be
used for floor polishing (including waxing and buffing), scrubbing and grinding, scarifying and
carpet shampooing.
NOTE 101 Commercial uses are for example for use in hotels, schools, hospitals, factories, shops and offices for
other than normal housekeeping purposes.
Appliances incorporating wet and/or dry suction shall also meet the appropriate requirements
for industrial vacuum cleaners.
This standard also applies to machines handling hazardous dust such as asbestos or liquids
for which additional national requirements might apply.
It is also applicable to appliances making use of other forms of energy for the motor; but it is
necessary that their influence is taken into consideration.
NOTE 102 Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be
necessary;
– in many countries additional requirements are specified by the national health authorities, the national
authorities responsible for the protection of labour, the national water supply authorities and similar authorities.
NOTE 103 This standard does not apply to
– appliances for household use to which IEC 60335-2-10 applies;
– spray extraction appliances (IEC 60335-2-68);
– appliances intended to be used in locations where special conditions prevail, such as the presence of a
corrosive or explosive atmosphere (vapour or gas).
– audio, video and similar electronic apparatus (IEC 60065);
– appliances for medical purposes (IEC 60601);
– hand-held motor-operated electric tools (IEC 60745);
– personal computers and similar equipment (IEC 60950);
– transportable motor-operated electric tools (IEC 61029).

– 8 – 60335-2-67  IEC:2002+A1:2005(E)
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 60335-2-69, 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
ISO 6344-2, Coated abrasives – Grain size analysis – Part 2: Determination of grain size
distribution of macrogrits P12 to P220
3 Definitions
This clause of Part 1 is applicable except as follows.
3.1.9 Replacement:
normal operation
the load, except for suction, or the highest obtainable load of all the particular loads of the
various functions that can be operated at the same time according to the manufacturer's
instructions.
Power outlets for accessories are loaded with a resistive load in accordance with the marking.
The operational functions for various types are given in 3.1.9.101 to 3.1.9.104.
3.1.9.101 Scrubbing, scarifying, grinding machines are operated with the appropriate
brushes on a surface of hydraulically pressed concrete paving slabs (see annex AA).
NOTE 101 Concrete scrubbing is considered to be the heaviest load.
An alternative is a smooth concrete area of a surface consistency comparable with
hydraulically pressed concrete paving slabs.
3.1.9.102 Dry and wet pick-up machines are operated according to IEC 60335-2-69.
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 IEC 60312, the carpet being fastened to the floor. The brush of the
shampooing machine has, prior to testing, to be conditioned by operating it for 15 min on a
clean, dry concrete surface. After running on the concrete surface the brush has to be
immersed in a shampoo solution for at least 30 min.
3.101
water-suction cleaning appliance
appliance for aspirating an aqueous solution that may contain foaming detergent

60335-2-67  IEC:2002+A1:2005(E) – 9 –
3.102
motorized cleaning head
accessory containing a motor that is supplied from the appliance and which is attached to the
end of a hand-held hose or tube
NOTE The main cleaning head permanently attached is not regarded as a motorized cleaning head.
4 General requirement
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable.
6 Classification
This clause of Part 1 is applicable except as follows.
6.1 Replacement:
Appliances and their attachments shall be class I, class II or class III with respect to their
protection against electric shock.
Compliance is checked by inspection and by the relevant tests.
6.2 Addition:
Mains supplied machines for indoor use and intended for dry cleaning only, shall be at least
IPX0. Other machines shall be at least IPX4.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.6 Addition:
[symbol IEC 60417-5935 (DB:2002-10)] motorized cleaning head for water-
suction cleaning
7.9 Addition:
The operation of the vacuum motor is deemed to be an adequate indication of the position of
the switch that exclusively controls the vacuum motor.

– 10 – 60335-2-67  IEC:2002+A1:2005(E)
7.12 Addition:
The front cover of the instruction manual shall include the substance of the following:
CAUTION: Read the instruction manual before using the appliance.
This wording may be replaced by symbols 0434 and 1641 of ISO 7000. If these symbols are
used, their meaning is to be explained in the instructions for use.
The instruction manual shall include the substance of the following warnings, as applicable.
– CAUTION: This appliance is not suitable for picking up hazardous dust.
– CAUTION: This appliance is for dry use only and is not to be used or stored outdoors in
wet conditions.
– WARNING: Only use the brushes provided with the appliance or those specified in the
instruction manual. The use of other brushes may impair safety.
The instruction manual shall give details regarding the following, as applicable:
– the precautions to be taken when using the appliance under specific conditions such as
handling flammable liquids or dust, and dust hazardous to health;
– a statement that the appliance is to be disconnected from its power source during cleaning
or maintenance and when replacing parts or converting the appliance to another function:
• for mains operated appliances, the plug is to be removed from the socket-outlet;
• for battery operated appliances, the key of the supply switch is to be removed or an
equivalent disconnection is to be made;
– a statement that doors and covers are to be positioned as indicated in the instruction
manual before using the appliance;
– the precautions to be taken when changing brushes or other attachments which require
the appliance to be energized;
– the intended use of brushes which are specified for the appliance;
– a warning that large diameter brushes provided specifically for dry buffing are not intended
for general polishing.
The instruction manual shall state
– the A-weighted sound pressure level L in dB(A) emitted by the appliance. If the
PA
A-weighted sound pressure level exceeds 85 dB(A), it shall also state the sound power
level L in dB(A) and that appropriate ear protection has to be used.
WA
NOTE 101 The sound level is measured in accordance with IEC 60704-1.
– the weighted r.m.s. acceleration value to which the operators’ arms are subjected in m/s²,
separately for each arm (if applicable).
NOTE 102 The weighted r.m.s. acceleration value is measured in accordance with ISO 5349 for arm
vibrations, the appliance being supplied at rated voltage or at the maximum rated voltage for machine with a
range of voltages
The instruction manual shall include the substance of the following:
This appliance is suitable for commercial use, for example in hotels, schools, hospitals,
factories, shops, offices and rental businesses.

60335-2-67  IEC:2002+A1:2005(E) – 11 –
The instruction manual for mains operated appliances shall include the substance of the
following:
– do not allow the rotating brushes to come into contact with the supply cord;
– regularly examine the supply cord for damage, such as cracking or ageing. If damage is
found, replace the cord before further use;
– only replace the supply cord with the type specified in the instruction manual;
– only use the socket outlet on the appliance for purposes specified in the instruction
manual.
The instructions for appliances having a current-carrying hose operating at other than safety
extra-low voltage shall include the substance of the following:
CAUTION: This hose contains electrical connections:
– do not use to collect water;
– do not immerse in water for cleaning;
– the hose should be checked regularly and must not be used if damaged.
If the symbol IEC 60417-5935 is used, its meaning shall be explained.
7.14 Addition:
The height of symbol IEC 60417-5935 shall be at least 15 mm.
Compliance is checked by measurement.
7.101 Motorized cleaning heads shall be marked with
– rated voltage or rated voltage range in volts;
– rated power input in watts;
– name, trade mark or identification mark of the manufacturer or responsible vendor;
–
...