Household and similar electrical appliances - Safety - Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use

IEC 60335-2-72:2016 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 and 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;
- businesss premises, for example offices and banks and 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 fourth edition cancels and replaces the third edition published in 2012. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition (minor changes are not listed):
- 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 attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this standard be adopted for implementation nationally not earlier than 12 months or later than 36 months from the date of publication. Key words: Floor treatment machines, Walk-behind machines, powered ride-on 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

L'IEC 60335-2-72:2016 concerne la sécurité des machines à conducteur à pied et des machines à conducteur porté à moteur, conçues pour l'utilisation commerciale en extérieur ou en intérieur pour les applications suivantes: le balayage, le brossage, le ramassage à sec ou en présence d'eau, le polissage, l'application de cire, de produits d'étanchéité et de détergents à base de poudre, le nettoyage par shampouineuse des sols munis d'une surface artificielle. Leur mouvement de nettoyage est plus linéaire que latéral ou périodique. La présente norme s'applique aux machines destinées à un usage commercial. La liste suivante, bien que non exhaustive, fournit une indication des lieux inclus dans le domaine d'application:
- lieux publics tels que des hôtels, des écoles, des hôpitaux;
- lieux industriels, par exemple des usines et des ateliers de fabrication;
- commerces de détail, tels que des boutiques et des supermarchés;
- locaux commerciaux, tels que des bureaux et des banques;
- toutes utilisations autres que l'entretien domestique normal. Elles peuvent être équipées d'un système de commande de dispositif de déplacement. Les systèmes d'alimentation suivants sont couverts:
- les moteurs à combustion interne,
- les moteurs alimentés par le réseau avec une tension assignée maximale de 250 V pour les appareils monophasés et de 480 V pour les autres appareils et
- les moteurs alimentés par batteries. Les machines alimentées par batteries peuvent être équipées d'un chargeur de batterie intégré. Cette quatrième édition annule et remplace la troisième édition parue en 2012. Elle constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente (les modifications mineures ne sont pas mentionnées):
- le titre a été modifié pour une meilleure distinction par rapport à l'IEC 60335-2-67;
- le domaine d'application a fait l'objet d'une révision sur le plan rédactionnel destinée à éviter toute incompréhension;
- l'Article 3 a été révisé conformément à la révision des exigences;
- la norme a été révisée de manière générale et mise à jour en ce qui concerne l'état de l'art, pour autant que nécessaire, quelques modifications ayant notamment été apportées à l'Article 15, à l'Article 22 et à l'Article 25;
- les marquages et les instructions (Article 7) ont fait l'objet d'une révision de fond;
- une nouvelle Annexe DD, "Émission de bruit acoustique", a été ajoutée, et une nouvelle Annexe EE, "Émission de vibrations", a été ajoutée. L'attention des Comités Nationaux est attirée sur le fait que les fabricants d'appareils et les organismes d'essais peuvent avoir besoin d'une période de transition après la publication d'une nouvelle publication IEC, ou d'une publication amendée ou révisée, pour fabriquer des produits satisfaisant aux nouvelles exigences et pour adapter leurs équipements aux nouveaux essais ou aux essais révisés. Le comité recommande que le contenu de cette publication soit entériné au niveau national au plus tôt 12 mois et au plus tard 36 mois après la date de publication. Mots-clés: machine de traitement des sols; machine à conducteur à pied; machine à conducteur porté à moteur; commande de dispositif de déplacement.
Cette publication doit être lue conjointement avec l'IEC 60335-1:2010.

General Information

Status
Published
Publication Date
17-May-2016
Current Stage
PPUB - Publication issued
Completion Date
18-May-2016
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IEC 60335-2-72
Edition 4.0 2016-05
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 60335-2-72:2016-05(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60335-2-72
Edition 4.0 2016-05
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 978-2-83223-313-9

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60335-2-72:2016 © IEC 2016
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 ............................................................................................................... 14

7 Marking and instructions .............................................................................................. 15

8 Protection against access to live parts ......................................................................... 19

9 Starting of motor-operated appliances .......................................................................... 20

10 Power input and current ............................................................................................... 20

11 Heating ....................................................................................................................... 20

12 Void ............................................................................................................................ 20

13 Leakage current and electric strength at operating temperature .................................... 20

14 Transient overvoltages................................................................................................. 21

15 Moisture resistance ..................................................................................................... 21

16 Leakage current and electric strength ........................................................................... 22

17 Overload protection of transformers and associated circuits .......................................... 23

18 Endurance ................................................................................................................... 23

19 Abnormal operation ..................................................................................................... 23

20 Stability and mechanical hazards ................................................................................. 24

21 Mechanical strength ..................................................................................................... 29

22 Construction ................................................................................................................ 31

23 Internal wiring .............................................................................................................. 35

24 Components ................................................................................................................ 35

25 Supply connection and external flexible cords .............................................................. 36

26 Terminals for external conductors ................................................................................ 37

27 Provision for earthing ................................................................................................... 37

28 Screws and connections .............................................................................................. 37

29 Clearances, creepage distances and solid insulation .................................................... 38

30 Resistance to heat and fire .......................................................................................... 38

31 Resistance to rusting ................................................................................................... 38

32 Radiation, toxicity and similar hazards ......................................................................... 38

Annexes ............................................................................................................................. 43

Annex A (informative) Routine tests ................................................................................... 44

Annex B (normative) Appliances powered by rechargeable batteries that are

recharged in the appliance .................................................................................................. 45

Annex L (informative) Guidance for the measurement of clearances and creepage

distances ............................................................................................................................ 53

Annex S (normative) Battery-operated appliances powered by batteries that are non-

rechargeable or not recharged in the appliance ................................................................... 54

---------------------- Page: 4 ----------------------
IEC 60335-2-72:2016 © IEC 2016 – 3 –

Annex AA (normative) Precast paving slabs ....................................................................... 58

Annex BB (normative) Requirements for internal combustion engine powered

machines using liquefied petroleum gas (LPG) ................................................................... 59

Annex CC (normative) Falling-object protective structures (FOPS) – Dynamic test and

performance requirements .................................................................................................. 62

Annex DD (informative) Emission of acoustical noise .......................................................... 65

Annex EE (informative) Emission of vibration ..................................................................... 68

Bibliography ....................................................................................................................... 69

Figure 101 – Impact test apparatus ..................................................................................... 39

Figure 102 – Apparatus for testing the abrasion resistance of current-carrying hoses .......... 40

Figure 103 – Apparatus for testing the resistance to flexing of current-carrying hoses ......... 41

Figure 104 – Configuration of the hose for the freezing treatment ....................................... 41

Figure 105 – Flexing positions for the hose after removal from the freezing cabinet ............. 42

Figure 106 – Warning symbol: Do not inhale exhaust fumes ................................................ 42

Figure B.101 – Forms of constructions for cleaning machines covered by Annex B .............. 46

Figure B.102 – Circuit for testing battery chargers (taken from IEC 60335-2-29) .................. 52

Figure CC.1 – Satisfactory protection by the overhead guard ............................................... 63

Figure CC.2 – Admissible deformation when the overhead guard is supported at all

sides .................................................................................................................................. 64

Figure CC.3 – Admissible deformation when the overhead guard is supported at one side .... 64

Table 12 – Pull force and torque ......................................................................................... 37

Table DD.1 – Determination of uncertainty .......................................................................... 67

---------------------- Page: 5 ----------------------
– 4 – IEC 60335-2-72:2016 © IEC 2016
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 fourth edition cancels and replaces the third edition published in 2012. It constitutes a

technical revision.

This edition includes the following significant technical changes with respect to the previous

edition (minor changes are not listed):

– 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;
---------------------- Page: 6 ----------------------
IEC 60335-2-72:2016 © IEC 2016 – 5 –

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

necessary, in particular some changes have been made to Clauses 15, 22, and 25;
– 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/625/FDIS 61J/636/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 sub clause 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 sub clause or involve notes in Part 1, they are numbered starting from 101, including

those in a replaced clause or sub clause;
– 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.

NOTE 4 The attention of National Committees is drawn to the fact that equipment manufacturers and testing

organizations may need a transitional period following publication of a new, amended or revised IEC publication in

which to make products in accordance with the new requirements and to equip themselves for conducting new or

revised tests.

It is the recommendation of the committee that the content of this publication be adopted for implementation

nationally not earlier than 12 months or later than 36 months from the date of publication.

The following differences exist in the countries indicated below.

– Annex AA: The CO-emission of LPG driven machines, intended to be used indoors, has to comply with the

value specified in Annex BB. The result shall be documented (Germany).

– Annex BB: For machines intended to be used indoors, except single cylinder engines, the exhaust gas shall

not contain more than 0,1 % volume of carbon monoxide (CO). If adjustments are necessary, the adjusting

means shall be easily accessible. The measurement shall be carried out with a warm engine, idling, using

98 % propane. The revolution speed of the engine shall be documented (Germany).

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.
---------------------- Page: 7 ----------------------
– 6 – IEC 60335-2-72:2016 © IEC 2016

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.

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

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

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

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
---------------------- Page: 8 ----------------------
IEC 60335-2-72:2016 © IEC 2016 – 7 –
INTRODUCTION

It has been assumed in the drafting of this International Standard that the execution of its

provisions is entrusted to appropriately qualified and experienced persons.

This standard recognizes the internationally accepted level of protection against hazards such

as electrical, mechanical, thermal, fire and radiation of appliances when operated as in

normal use taking into account the manufacturer's instructions. It also covers abnormal

situations that can be expected in practice and takes into account the way in which

electromagnetic phenomena can affect the safe operation of appliances.

This standard takes into account the requirements of IEC 60364 as far as possible so that

there is compatibility with the wiring rules when the appliance is connected to the supply

mains. However, national wiring rules may differ.

If an appliance within the scope of this standard also incorporates functions that are covered

by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as

far as is reasonable. If applicable, the influence of one function on the other is taken into

account.

When a part 2 standard does not include additional requirements to cover hazards dealt with

in Part 1, Part 1 applies.

NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is

not necessary to specify particular requirements for the appliance in question over and above the general

requirements.

This standard is a product family standard dealing with the safety of appliances and takes

precedence over horizontal and generic standards covering the same subject.

NOTE 2 Horizontal and generic standards covering a hazard are not applicable since they have been taken into

consideration when developing the general and particular requirements for the IEC 60335 series of standards. For

example, in the case of temperature requirements for surfaces on many appliances, generic standards, such as

ISO 13732-1 for hot surfaces, are not applicable in addition to Part 1 or part 2 standards.

An appliance that complies with the text of this standard will not necessarily be considered to

comply with the safety principles of the standard if, when examined and tested, it is found to

have other features that impair the level of safety covered by these requirements.

An appliance employing materials or having forms of construction differing from those detailed

in the requirements of this standard may be examined and tested according to the intent of

the requirements and, if found to be substantially equivalent, may be considered to comply

with the standard.
---------------------- Page: 9 ----------------------
– 8 – IEC 60335-2-72:2016 © IEC 2016
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 (IEC 60335-2-10);
– floor treatment machines for commercial use (IEC 60335-2-67);
– spray extraction machines for commercial use (IEC 60335-2-68);
---------------------- Page: 10 ----------------------
IEC 60335-2-72:2016 © IEC 2016 – 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.).
NOTE 105 Requirements for fuel-cells are under consideration.
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 – 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

distr
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Questions, Comments and Discussion

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