IEC 60335-2-107:2012

IEC 60335-2-107


®


Edition 1.0 2012-02



INTERNATIONAL



STANDARD



NORME
INTERNATIONALE
colour
inside


Household and similar electrical appliances – Safety –
Part 2-107: Particular requirements for robotic battery powered electrical
lawnmowers

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-107: Exigences particulières relatives aux tondeuses à gazon
électriques robotisées alimentées par batterie



IEC 60335-2-107:2012

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IEC 60335-2-107



®



Edition 1.0 2012-02







INTERNATIONAL





STANDARD







NORME



INTERNATIONALE
colour

inside










Household and similar electrical appliances – Safety –

Part 2-107: Particular requirements for robotic battery powered electrical

lawnmowers




Appareils électrodomestiques et analogues – Sécurité –

Partie 2-107: Exigences particulières relatives aux tondeuses à gazon


électriques robotisées alimentées par batterie














INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX XB


ICS 65.060.70 ISBN 978-2-88912-895-2



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

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CONTENTS

FOREWORD . 4


INTRODUCTION . 6

1 Scope . 7

2 Normative references . 7


3 Definitions . 8

4 General requirement . 12

5 General conditions for the tests . 12

6 Classification . 12
7 Marking and instructions . 13
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. 15
13 Leakage current and electric strength at operating temperature . 15
14 Transient overvoltages . 15
15 Moisture resistance . 15
16 Leakage current and electric strength . 16
17 Overload protection of transformers and associated circuits . 16
18 Endurance . 16
19 Abnormal operation . 16
20 Stability and mechanical hazards . 17
21 Mechanical strength . 26
22 Construction . 29
23 Internal wiring . 36
24 Components . 36
25 Supply connection and external flexible cords . 36
26 Terminals for external conductors . 36
27 Provision for earthing . 36

28 Screws and connections . 36
29 Clearances, creepage distances and solid insulation . 37
30 Resistance to heat and fire . 37
31 Resistance to rusting . 37
32 Radiation, toxicity and similar hazards . 37
Annexes . 44
Annex B (normative) Appliances powered by rechargeable batteries. 45
Annex AA (normative) Calculation of kinetic energy of pivoting cutting elements . 46
Annex BB (normative) Test enclosure construction . 48
Annex CC (normative) Base for thrown object test enclosure . 53
Annex DD (normative) Target panel elevation zones and recommended test report for
thrown object test . 55
Annex EE (normative) Safety signs . 57

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60335-2-107 © IEC:2012 – 3 –


Annex FF (normative) Noise test code – Engineering method (grade 2) . 61

Annex GG (informative) Example of a material and construction fulfilling the

requirements for an artificial surface . 66


Annex HH (informative) Safety instructions . 68

Bibliography . 70




Figure 101 – Example of test cycles (see 20.102.2) . 37

Figure 102 – Foot probe test (see 20.102.4) . 38

Figure 103 – Impact test fixture (see 21.101.1) . 39

Figure 104 – Example of structural integrity test fixtures (see 21.101.3.1.1) . 41
Figure 105 – Finger probe test – Illustrations showing application of probe, insertion
depth limited according to the geometry of the enclosure . 42
Figure 106 – Obstruction sensor test – Illustration showing typical arrangement (see
22.105.2) . 43
Figure AA.1 – Measurement of the reckonable length L . 47
Figure BB.1 – Thrown object test enclosure – General layout . 49
Figure BB.2 – Thrown object test enclosure . 50
Figure BB.3 – Test enclosure walls and base . 51
Figure BB.4 – Test fixture for corrugated fibreboard penetration test . 52
Figure CC.1 – Thrown object test enclosure – Base detail . 53
Figure CC.2 – Nail plan of test enclosure base . 54
Figure DD.1 – Recommended test data sheet . 56
Figure EE.1 – Safety sign illustrating – "WARNING – Read user instructions before
operating the machine" . 57
Figure EE.2 – Alternative safety sign for the supplementary safety information panel of
EE.1 (safety sign 1641 of ISO 7000) . 57
Figure EE.3 – Alternative safety sign for the supplementary safety information panel of
EE.1 (safety sign M002 of ISO 7010) . 58
Figure EE.4 – Safety sign illustrating – "WARNING – Keep a safe distance from the
machine when operating" . 58
Figure EE.5 – Safety sign illustrating – "WARNING – Remove the disabling device
before working on or lifting the machine" . 59
Figure EE.6 – Safety sign illustrating – "WARNING – Operate the disabling device
before working on or lifting the machine" . 59

Figure EE.7 – Safety sign illustrating – "WARNING – Do not ride on the machine" . 60
Figure FF.1 – Microphone positions on the hemisphere (see Table FF.1) . 62
Figure GG.1 – Sketch of the measurement surface covered with an artificial surface
(not to scale) . 67

Table 1 – Sizing of test fixture air inlet holes . 27
Table FF.1 – Co-ordinates of microphone positions . 63
Table FF.2 – Absorption coefficients . 64

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INTERNATIONAL ELECTROTECHNICAL COMMISSION


____________




HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –

SAFETY –



Part 2-107: Particular requirements for robotic battery

powered electrical lawnmowers



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 60335-2-107 has been prepared IEC technical committee 116:
Safety of motor-operated electric tools.
The text of this standard is based on the following documents:
FDIS Report on voting
116/79/FDIS 116/86/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.

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60335-2-107 © IEC:2012 – 5 –


This part 2 is to be used in conjunction with the fourth edition (2001) of IEC 60335-1 and its

amendments.


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 robotic battery
powered electrical lawnmowers.


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 specification: in italic type
– Notes: in small roman type
Words in bold in the text are defined in clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
A list of all parts of the IEC 60335 series, under the general title: Household and similar
electrical appliances – Safety, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.

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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 machines 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 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 machine 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.
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.

The non-electrical safety requirements covering non-electrical hazards have been taken from
IEC 60335-2-77 where appropriate.

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60335-2-107 © IEC:2012 – 7 –


HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –

SAFETY –



Part 2-107: Particular requirements for robotic battery

powered electrical lawnmowers








1 Scope

This clause of Part 1 is replaced by the following.
This standard deals with the safety of robotic battery powered electrical rotary lawnmowers
with the rated voltage of the battery being not more than 75 V d.c. charged by mains
electrical and/or solar power. This International Standard does not apply to non-robotic
machines such as lawn trimmers, lawn edge trimmers, lawn edgers, ride-on lawnmowers
or pedestrian controlled lawnmowers.
This standard is not applicable to EMC and environmental hazards (except noise)
This standard deals with the common hazards presented by battery powered robotic
lawnmowers for use around the home or for similar purposes.
Requirements for batteries are covered by IEC 62133.
This International Standard is not applicable to machines, which are manufactured before the
date of publication of this document by IEC.
NOTE This standard does not apply to battery chargers (IEC 60335-2-29).
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
IEC 60320 (all parts), Appliance couplers for household and similar general purposes

IEC 60335-1: 2001, Household and similar electrical appliances – Safety – Part 1: General
requirements
Amendment 1 (2004)
1
Amendment 2 (2006)
IEC 60335-2-77, Household and similar electrical appliances – Safety – Part 2-77: Particular
requirements for pedestrian controlled mains-operated lawnmowers
IEC 61508 (all parts), Functional safety of electrical/electronic/programmable electronic
safety-related systems
___________
1
 There exists a consolidated edition 4.2 (2006) comprising IEC 60335-1 (2001) and its Amendments 1 (2004)
and 2 (2006).

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IEC 62133, Secondary cells and batteries containing alkaline or other non-acid electrolytes-

safety requirements for portable sealed secondary cells, and for batteries made from them, for

use in portable applications


ISO 354:2003, Acoustics – Measurement of sound absorption in a reverberation room


ISO 683-9, Heat-treatable steels, alloy steels and free-cutting steels – Part 9: Wrought free-

cutting steels


ISO 3744:2010, Acoustics – Determination of sound power levels and sound energy levels of

noise sources using sound pressure – Engineering methods for an essentially free field over a

reflecting plane
ISO 3767-1, Tractors, machinery for agriculture and forestry, powered lawn and garden
equipment – Symbols for operator controls and other displays – Part 1: Common symbols
ISO 3767-3, Tractors, machinery for agriculture and forestry, powered lawn and garden
equipment – Symbols for operator controls and other displays – Part 3: Symbols for powered
lawn and garden equipment
ISO 7010:2011, Graphical symbols – Safety colours and safety signs – Registered safety
signs
ISO 11201:2010, Acoustics – Noise emitted by machinery and equipment – Determination of
emission sound pressure levels at a work station and at other specified positions in an
essentially free field over a reflecting plane with negligible environmental corrections
ISO 11684, Tractors, machinery for agriculture and forestry, powered lawn and garden
equipment – Safety signs and hazard pictorials – General principles
ISO 11688-1, Acoustics – Recommended practice for the design of low-noise machinery and
equipment – Part 1: Planning
ISO 13857:2008, Safety of machinery – Safety distances to prevent hazard zones being
reached by upper and lower limbs
3 Definitions
This clause of Part 1 is applicable except as follows.

3.101
blade
term used in warnings and instructions to denote "cutting means"
Note 1: See 3.103.
3.102
control
means or device which will control the operation of the machine or any specific operating
function thereof
3.103
cutting means
the mechanism used to provide the cutting action of a lawnmower

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60335-2-107 © IEC:2012 – 9 –


3.104

cutting means enclosure

the part or assembly which provides the protective means around the cutting means


3.105

cutting means tip circle

the path described by the outermost point of the cutting means as it rotates about its shaft

axis


3.106

cutting position

any height setting of the cutting means designated by the manufacturer for cutting grass
3.107
disabling device
a) removable
detachable part, such as for example a key, which prevents operation of the lawnmower
when it is removed
b) code protected
device which, when operated,
...