IEC 60335-2-72:2021
(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 60335-2-72:2021 is available as IEC 60335-2-72:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60335-2-72:2021 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.
These machines have a cleaning motion which is more linear than lateral or periodic. This standard applies to machines for commercial use. The following list, although not comprehensive, gives an indication of locations that are included in the scope:
- public use areas such as hotels, schools, hospitals;
- industrial locations, for example factories and manufacturing shops;
- retail outlets, for example shops and supermarkets;
- business premises, for example offices and banks;
- all uses other than normal housekeeping purposes.
These machines 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-operated machines.
Battery-operated machines may be equipped with a built-in battery charger.
This standard does not apply to
- floor treatment appliances for household use (IEC 60335-2-10);
- floor treatment machines for commercial use (IEC 60335-2-67);
- spray extraction machines for commercial use (IEC 60335-2-68);
- wet and dry vacuum cleaners, including power brush, for commercial use (IEC 60335-2-69);
- 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.
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.).
Requirements for fuel-cells are under consideration. This fifth edition cancels and replaces the fourth edition published in 2016. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition (minor changes are not listed):
- editorial and technical alignment with IEC 60335-1:2020;
- rearrangement of subclauses to consistent numbering 22.101 to 22.113.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments. It was established on the basis of the sixth edition (2020) of that standard.
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IEC 60335-2-72 ®
Edition 5.0 2021-07
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
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
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committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
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The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC 60335-2-72 ®
Edition 5.0 2021-07
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
ELECTROTECHNICAL
COMMISSION
ICS 97.080 ISBN 978-2-8322-9995-1
– 2 – IEC 60335-2-72:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 10
4 General requirement . 14
5 General conditions for the tests . 14
6 Classification . 15
7 Marking and instructions . 15
8 Protection against access to live parts . 19
9 Starting of motor-operated appliances . 21
10 Power input and current . 21
11 Heating . 21
12 Charging of metal-ion batteries . 21
13 Leakage current and electric strength at operating temperature . 21
14 Transient overvoltages . 22
15 Moisture resistance . 22
16 Leakage current and electric strength . 23
17 Overload protection of transformers and associated circuits . 24
18 Endurance . 24
19 Abnormal operation . 24
20 Stability and mechanical hazards . 25
21 Mechanical strength . 30
22 Construction . 32
23 Internal wiring . 36
24 Components . 37
25 Supply connection and external flexible cords . 38
26 Terminals for external conductors . 39
27 Provision for earthing . 39
28 Screws and connections . 39
29 Clearances, creepage distances and solid insulation . 39
30 Resistance to heat and fire . 40
31 Resistance to rusting . 40
32 Radiation, toxicity and similar hazards . 40
Annexes . 46
Annex A (informative) Routine tests . 47
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 48
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 53
Annex AA (normative) Precast paving slabs . 54
Annex BB (normative) Requirements for internal combustion engine powered
machines using liquefied petroleum gas (LPG) . 55
Annex CC (normative) Falling-object protective structures (FOPS) – Dynamic test and
performance requirements . 58
Annex DD (informative) Emission of acoustical noise . 61
Annex EE (informative) Emission of vibration . 64
Bibliography . 65
Index of defined terms . 67
Figure 101 – Impact test apparatus . 41
Figure 102 – Apparatus for testing the abrasion resistance of current-carrying hoses . 42
Figure 103 – Apparatus for testing the resistance to flexing of current-carrying hoses . 43
Figure 104 – Configuration of the hose for the freezing treatment . 43
Figure 105 – Flexing positions for the hose after removal from the freezing cabinet . 44
Figure 106 – Warning symbol: Do not inhale exhaust fumes . 44
Figure 107 – Circuit for testing battery chargers (taken from IEC 60335-2-29) . 45
Figure CC.1 – Satisfactory protection by the overhead guard . 59
Figure CC.2 – Admissible deformation when the overhead guard is supported at all
sides . 60
Figure CC.3 – Admissible deformation when the overhead guard is supported at one
side . 60
Table 101 – Machine classification . 15
Table 12 – Pull force and torque . 39
Table DD.1 – Determination of uncertainty . 63
– 4 – IEC 60335-2-72:2021 © IEC 2021
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.
IEC 60335-2-72 has been prepared by subcommittee
...
IEC 60335-2-72 ®
Edition 5.0 2021-07
REDLINE VERSION
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
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC 60335-2-72 ®
Edition 5.0 2021-07
REDLINE VERSION
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
ELECTROTECHNICAL
COMMISSION
ICS 97.080 ISBN 978-2-8322-4108-0
– 2 – IEC 60335-2-72:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 10
4 General requirement . 14
5 General conditions for the tests . 14
6 Classification . 15
7 Marking and instructions . 15
8 Protection against access to live parts . 20
9 Starting of motor-operated appliances . 21
10 Power input and current . 21
11 Heating . 21
12 Void Charging of metal-ion batteries . 22
13 Leakage current and electric strength at operating temperature . 22
14 Transient overvoltages . 22
15 Moisture resistance . 22
16 Leakage current and electric strength . 24
17 Overload protection of transformers and associated circuits . 24
18 Endurance . 24
19 Abnormal operation . 25
20 Stability and mechanical hazards . 26
21 Mechanical strength . 31
22 Construction . 33
23 Internal wiring . 37
24 Components . 38
25 Supply connection and external flexible cords . 39
26 Terminals for external conductors . 40
27 Provision for earthing . 40
28 Screws and connections . 40
29 Clearances, creepage distances and solid insulation . 40
30 Resistance to heat and fire . 41
31 Resistance to rusting . 41
32 Radiation, toxicity and similar hazards . 41
Annexes . 47
Annex A (informative) Routine tests . 48
Annex B (normative) Appliances powered by rechargeable batteries that are
recharged in the appliance .
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 57
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 62
Annex S (normative) Battery-operated appliances powered by batteries that are non-
rechargeable or not recharged in the appliance .
Annex AA (normative) Precast paving slabs . 67
Annex BB (normative) Requirements for internal combustion engine powered
machines using liquefied petroleum gas (LPG) . 68
Annex CC (normative) Falling-object protective structures (FOPS) – Dynamic test and
performance requirements . 71
Annex DD (informative) Emission of acoustical noise . 74
Annex EE (informative) Emission of vibration . 77
Bibliography . 78
Index of defined terms . 80
Figure 101 – Impact test apparatus . 42
Figure 102 – Apparatus for testing the abrasion resistance of current-carrying hoses . 43
Figure 103 – Apparatus for testing the resistance to flexing of current-carrying hoses . 44
Figure 104 – Configuration of the hose for the freezing treatment . 44
Figure 105 – Flexing positions for the hose after removal from the freezing cabinet . 45
Figure 106 – Warning symbol: Do not inhale exhaust fumes . 45
Figure 107 – Circuit for testing battery chargers (taken from IEC 60335-2-29) . 46
Figure CC.1 – Satisfactory protection by the overhead guard . 72
Figure CC.2 – Admissible deformation when the overhead guard is supported at all
sides . 73
Figure CC.3 – Admissible deformation when the overhead guard is supported at one
side . 73
Table 101 – Machine classification . 15
Table 12 – Pull force and torque . 40
Table DD.1 – Determination of uncertainty . 76
– 4 – IEC 60335-2-72:2021 RLV © IEC 2021
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
indi
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