IEC 60335-2-94:2008

IEC 60335-2-94
Edition 3.0 2008-01
INTERNATIONAL
STANDARD
Household and similar electrical appliances – Safety –
Part 2-94: Particular requirements for scissors type grass shears

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IEC 60335-2-94
Edition 3.0 2008-01
INTERNATIONAL
STANDARD
Household and similar electrical appliances – Safety –
Part 2-94: Particular requirements for scissors type grass shears

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
X
ICS 65.060.70 ISBN 2-8318-9531-6

– 2 – 60335-2-94 © IEC:2008(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6

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

Annexes .24

Bibliography.42

60335-2-94 © IEC:2008(E) – 3 –
Figure 101 – Parts of cutting means (see 3.103, 3.104) – Cutting width (see 3.101) .18
Figure 102 – Examples of grass shears (see 3.102).18
Figure 103 – Cutter blade extension (see 20.103).19
Figure 104 – Examples of compliance/non-compliance and measurement method for
hand protection (see 20.104) .20
Figure 105 – Example showing the layout for the strength test and a possible
orientation for the grass shear (see 21.101.1).21
Figure 106 – Cutting means strength test (see 21.102) .22
Figure 107 – Device for impact test (see 22.35) .23
Figure BB.1 – Examples of transducer location/orientation (handle).31
Figure CC.1 – Microphone positions on the hemisphere (see Table CC.1) .33
Figure DD.1 – Sketch of the measurement surface covered with an artificial surface
(not to scale) .39

Table CC.1 – Coordinates of microphone-positions.34
Table CC.2 – Absorption coefficients .35

– 4 – 60335-2-94 © IEC:2008(E)
INTERNATIONAL ELECTROTECNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-94: Particular requirements for scissors type grass shears

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.
International Standard IEC 60335-2-94 has been prepared by subcommittee 61F: Safety of
hand-held motor-operated electric tools, of IEC technical committee 61: Safety of household
and similar electrical appliances.
The text of this standard is based on the following documents:
FDIS Report on voting
61F/704/FDIS 61F/712/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 third edition cancels and replaces the second edition, published in 2002. Is constitutes a
technical revision. The main updates concern mechanical hazards, construction, endurance
and resistance to rusting.
60335-2-94 © IEC:2008(E) – 5 –
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 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 scissors type grass
shears.
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 committee has decided that the contents of this publication 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 – 60335-2-94 © IEC:2008(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.
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.
60335-2-94 © IEC:2008(E) – 7 –
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-94: Particular requirements for scissors type grass shears

1 Scope
This clause of Part 1 is replaced by the following.
This standard deals with the safety of electric powered hand-held scissors type grass
shears with a maximum cutting width of 200 mm designed primarily for cutting grass, their
rated voltage being not more than 250 V for a.c. or 50 V d.c.
The term “grass shear” within this standard means “electric powered scissors type grass
shear”.
So far as is practicable, this standard deals with the common hazards presented by grass
shears which are encountered by all persons in the normal use and reasonably foreseeable
misuse.
NOTE 101 Attention is drawn to the fact that 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.
Requirements for chargers are covered by IEC 60335-2-29.
EMC and environmental aspects except for noise have not been considered in this standard.
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
IEC 60320, Appliance couplers for household and similar general purposes
ISO 354:2003, Acoustics – Measurement of sound absorption in a reverberation room
ISO 3744:1994, Acoustics – Determination of sound power levels of noise sources using
sound pressure – Engineering method in an essentially free field over a reflecting plane
ISO 3767-1:1998, 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: 1995, 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 8662-1:1988, Hand-held portable power tools – Measurement of vibrations at the handle -
– Part 1: General
– 8 – 60335-2-94 © IEC:2008(E)
ISO 11201:1995, 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 11684: 1995, Tractors, machinery for agriculture and forestry, powered lawn and garden
equipment – Safety signs and hazard pictorials – General principles
ISO/TR 11688-1:1995, Acoustics – Recommended practice for the design of low-noise
machinery and equipment – Part 1: Planning
ISO 12100-1, Safety of machinery – Basic concepts and general principles for design –
Part 1: Basic terminology, methodology
ISO 13852:1996, Safety of machinery – Safety distances to prevent danger zones being
reached by the upper limbs
EN 12449:1999, Copper and copper alloys – Seamless, round tubes for general purposes
3 Definitions
This clause of Part 1 is applicable except as follows.
3.1.9 Replacement:
normal operation
operation of the appliance at rated voltage with the load necessary to obtain rated power input
3.5.2 Replacement:
hand-held appliance
portable appliance intended to be held in the hand during normal use, including appliances
which will not maintain their operating position unless supported, possibly with an extension
shaft and/or assisted by wheel(s), skid(s) or similar
3.101
width of cut
the effective cutting width of the cutting device measured from the inside edge of the first
blade tooth or shear plate tooth to the inside edge of the last blade tooth or shear plate
tooth, whichever is the greater (see Figure 101)
3.102
scissors type grass shears
grass-cutting machine with two blades where the one cutter blade reciprocates along a
straight or curved path (see Figure 102)
3.103
blade tooth
part of the cutter blade which is sharpened to perform the shearing action (see Figure 101)
3.104
cutter blade
part of the cutting means having blade teeth which cut by shearing action against the teeth
of the shear plate (see Figure 101)
3.105
cutting means
cutter blade and shear plate together with any supporting part(s), which together perform the
cutting action
60335-2-94 © IEC:2008(E) – 9 –
3.106
cutting means control
device, activated by the operator’s hand or finger, for controlling the operation of the cutting
means
3.107
no load
operation of the appliance at rated voltage with the cutting means attached
3.108
extension shaft
optional shaft which is designed to be fitted to a hand-held grass shear to enable the operator
to cut grass while in a standing position
3.109
power switch
device that turns on and off the electric power and/or electronically activates and deactivates
the function(s) of the tool
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:
Scissors type grass shears shall be of class II or class III.
Compliance is checked by inspection and by the relevant tests.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Addition:
Add the following indents:
− manufacturer’s address or country of origin;
− year of manufacture; in 4 digits.
Add the following new paragraphs:
The following warnings shall be located in easily visible positions, indicating:
Warning: Read instruction manual.
Warning: Do not expose to moisture.

– 10 – 60335-2-94 © IEC:2008(E)
Warning: Cutting means continues to run after the motor is switched off.
Warning: Keep bystanders away.
Mains-operated appliances shall also be marked with the substance of the following:
– Disconnect the mains plug if the cord is damaged or entangled.
Marking giving cautionary information shall be located as close as practicable to the relevant
hazard. Such marking shall be in one of the official languages of the country in which the
appliance is to be sold or safety signs and symbols according to Annex AA may be used.
Symbols according to ISO 3767-1, ISO 3767-3 and ISO 11684 may also be used, as
appropriate. Colours shall be in accordance with ISO 3767-1 and/or ISO 11684 as
appropriate, unless the symbols are cast, embossed or stamped when colours are not
required. If symbols are used, their significance shall be described in the instruction manual.
7.12 Addition:
An operator’s manual shall be supplied with the machine. This shall include
a) a repeat of those warnings required to be marked on the appliance together with further
explanation, where appropriate. Where symbols or safety signs are used in the marking on
the appliance, their function shall be explained;
b) instructions for the proper assembly of the appliance for use, if the appliance is not
supplied in a completely assembled form;
c) instructions for proper adjustment and maintenance of the appliance;
d) where parts are consumable, the part number of the replacement shall be specified;
e) instructions on the operation of all controls;
f) advice on the use and type of extension cords to be used (not lighter than required by
25.7);
g) instructions for the safe operation, preparation, maintenance and storage of the appliance
such as those given as an example in Annex EE.
8 Protection against access to live parts
This clause of Part 1 is applicable.
9 Starting of motor-operated appliances
This clause of Part 1 is not applicable.
10 Power input and current
This clause of Part 1 is not applicable.
11 Heating
This clause of Part 1 is applicable except as follows.
11.4 Not applicable.
11.5 Replacement:
The grass shear is operated in still air under normal operation conditions until a steady state
is reached, the torque being applied is measured. While the torque is maintained, the voltage

60335-2-94 © IEC:2008(E) – 11 –
is then adjusted to 0,94 times the rated voltage or 1,06 times the rated voltage, or the mean
of the rated voltage range, whichever is the most unfavourable.
11.6 Not applicable.
11.7 Replacement:
Appliances 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.
14 Transient overvoltages
This clause of Part 1 is applicable.
15 Moisture resistance
This clause of Part 1 is applicable.
16 Leakage current and electric strength
This clause of Part 1 is applicable.
17 Overload protection of transformers and associated circuits
This clause of Part 1 is applicable.
18 Endurance
This clause of Part 1 is replaced as follows.
18.101 Grass shears shall be so constructed that, in normal use, there will be no electrical
or mechanical failure that might impair compliance with this standard. The insulation shall not
be damaged and contacts and connections shall not work loose as a result of heating,
vibrations, etc.
Moreover, overload protection devices shall not operate under normal running conditions.
Compliance is checked by the test of 18.102.
Immediately after the test, the tool shall withstand an electric strength test as specified
in Clause 16, the test voltages being, however, reduced to 75 % of the specified values.
Connections shall not have worked loose, and there shall be no deterioration impairing safety
in normal use.
18.102 The grass shear is operated with the plane of the cutting means horizontal and at
no load for 15 h of operation at a voltage equal to 1,1 times rated voltage, and then for 15 h at

– 12 – 60335-2-94 © IEC:2008(E)
a supply voltage equal to 0,9 times rated voltage. The grass shear may be operated for a
number of periods, each period being not less than 7 h.
During this test, the grass shear is maintained according to the instruction manual and
replacement of the carbon brushes is allowed.
During these tests, overload protection devices shall not operate.
19 Abnormal operation
This clause of Part 1 is applicable except as follows.
19.7 Not applicable.
20 Stability and mechanical hazards
This clause of Part 1 is applicable except as follows.
20.101 General
Grass shears shall comply with the safety requirements and/or protective measures of this
Clause. In addition, the grass shears shall be designed according to the principles of
ISO 12100-1 for hazards relevant but not significant, which are not dealt with by this
document (e.g. sharp edges on the outside of the grass shears).
20.102 Power-driven components (other than the cutting means)
All power-driven transmission components shall be guarded to prevent the operator’s contact
with these parts during normal operation.
Except where otherwise stated in this standard, all openings and safety distances shall
conform to 4.5.1 and 4.5.3 of ISO 13852.
Compliance shall be checked by inspection and measurement.
20.103 Cutting means configuration
Cutting means shall be so constructed, that the shear plate teeth extend at least 2 mm
beyond the moving cutter teeth. The extension shall be measured for each cutter
blade/shear plate tooth combination (see Figure 103).
20.104 Hand protection
The housing shall be so constructed, that inadvertent contact of the hand holding the grass
shear with the cutter blade(s) shall be prevented.
This shall be achieved if the handle is so constructed that it is attached to the grass shear at
the front of the handle grip and the shortest distance between the front of the handle grip and
the nearest root of a cutter blade tooth is at least 120 mm (see Figure 104).
The distances shall be measured along the shortest path from the front of the handle grip to
the nearest cutting edge of a cutter blade.
Compliance shall be checked by inspection and measurement.

60335-2-94 © IEC:2008(E) – 13 –
21 Mechanical strength
This clause of Part 1 is applicable except as follows.
Replacement of the third paragraph:
The appliance is rigidly supported and three blows are applied to every point of the enclosure
that is likely to be weak.
The impact energy will be 1,0 ± 0,05 J and blows shall also be applied to handles, levers,
knobs, handle shafts and cutting elements.
21.101 General
The mechanical strength of the grass shear shall be adequate for normal use.
Compliance shall be checked by the tests given in 21.101.1 and 21.102.
21.101.1 Strength and rigidity
One sample of the complete grass shear shall be dropped three times so that it falls through a
vertical distance of (900 ± 10) mm onto a smooth horizontal concrete surface in such a
manner as to test the strength of the grass shear most severely (see Figure 105). Each of the
three drops shall be so conducted that the grass shear receives an impact in a location
different from the other two.
A string can be used to suspend the grass shear so that the desired orientation of the grass
shear can be achieved. Cutting the string will allow the grass shear to fall in the correct
orientation to test the relevant part.
No parts of the grass shear that are necessary for safe operation shall become detached and
no visible cracks shall have developed.
It is not necessary for the grass shear to be operable after the test but, if it is operable, then
immediately following this test, it shall be run at its maximum speed for 30 s and again, no
parts of the grass shear that are necessary for safe operation shall become detached and no
visible cracks shall have developed.
21.102 Cutting means strength and rigidity
The rigidity and mounting of the cutting means of the grass shear shall be capable of safely
withstanding impact with a hard object. This shall be tested by fixing the grass shear on a
steel plate or a smooth concrete surface in such a manner that a test piece can be easily
introduced into the cutting means.
The test piece shall be a nominal 15 mm diameter copper tube, having a nominal wall
thickness of 1 mm as specified in EN 12449:1999 (see Figure 106) or of other material with
comparable characteristics. The tube shall be fixed into a suitable carrying device.
The grass shear shall be run at maximum speed, then the tube shall be introduced into the
cutting means at a speed of 1 m/s. The grass shear shall continue to be run for 15 s or until
the blades stop or the tube is cut.
No part of a cutter blade or the cutting means shall become detached. Any breakage of a
cutter blade shall be considered failure of the test. Breakage of a drive shearing device or
chipping of the blade cutting edge shall not be deemed to be a test failure.
NOTE The test does not require that the grass shear has to be suitable for use after test.

– 14 – 60335-2-94 © IEC:2008(E)
22 Construction
This clause of Part 1 is applicable except as follows.
22.12 Addition:
Grass shears shall have at least one handle. The handle(s) shall be designed in such a way
that each one can be grasped with one hand.
The gripping length of handles shall be at least 100 mm long. On bail or closed handles (U-
shaped handles), this dimension is related to the inner width of the gripping surface. On
straight handles, it is the complete length between the housing and the end of the handle.
The gripping length of a bail or closed handle shall comprise any length that is straight or
curved at a radius of greater than 100 mm together with any blend radius but not more than
10 mm at either or both ends of the gripping surface.
There shall be a minimum radial clearance of 25 mm around the gripping length.
NOTE If a part containing the motor complies with the dimensions above, it may be considered as a handle.
If a straight handle is supported centrally (i.e. ‘T’ type) the gripping length shall be calculated
as follows:
a) for handles with a periphery (not including the support) less than 80 mm, the gripping
length is the sum of two parts on either side of the support;
b) for handles with a periphery (not including the support) of 80 mm or more, the gripping
length is the complete length from end to end.
Where appropriate, the part of the handle containing the cutting means control shall be
counted as part of the handle gripping length. Finger grip or similar superimposed profiles
shall not affect the method of calculating handle gripping length.
Handles shall be positively locked in position. If they are adjustable in different positions, it
shall not be possible to lock them in a position which contravenes other provisions of this
standard.
22.30 Addition:
Scissor type grass shears shall be constructed so as to prevent bridging of supplementary
insulation and reinforced insulation by grass cuttings or other debris.
22.35 Addition:
For class II appliances, handles and operator controls which are held when operating the
appliance shall either be of insulating material or covered by insulating material having a
thickness of at least 1 mm, or separated by insulation equivalent to supplementary
insulation from other accessible metal parts.
Compliance is checked by inspection, by measurement and for the insulating material
covering on handles, operator controls and handle shafts, by the following tests.
A sample of the covered part is conditioned at a temperature of 70 °C ± 2 °C for seven days
(168 h). After conditioning, the sample is allowed to attain approximately room temperature.
Inspection shall show that the covering has not shrunk to such an extent that the required
length or the required insulation is no longer provided or that the covering has not peeled off,
so that it can move longitudinally.
After this, the sample is maintained for 4 h at a temperature of –10 °C ± 2 °C.

60335-2-94 © IEC:2008(E) – 15 –
While still at this temperature, the sample is then subjected to impact by means of the
apparatus shown in Figure 107. The weight A having a mass of 300 g is dropped from a
height of 350 mm onto the chisel B of hardened steel, the tip of which is placed on the
sample.
One impact is applied to each place where the covering is likely to be weak or damaged in
intended use, the distance between the points of impact being at least 10 mm.
After this test, inspection shall show that the covering has not peeled off and an electric
strength test is made between metal parts and metal foil wrapped around the covering in the
area required to be insulated.
The test voltage of 2 500 V is applied for 1 min.
During this test, no flashover or breakdown shall occur.
22.40 Addition:
A cutting means control shall be provided and either this shall require two separate and
dissimilar actions before the cutting means can be driven, or the control shall be guarded to
prevent inadvertent operation. There shall be no means of locking this control in the ‘On’
position. The cutting means shall come to rest after the control is released.
Compliance shall be checked by inspection and for a guarded cutting means control, it shall
not be possible to operate the control by means of a (100 ± 1) mm diameter sphere.
22.101 Control on extension shaft
If an extension shaft is used, the control on the extension shaft shall override or duplicate the
original switch.
Compliance is checked by inspection and by practical test.
22.102 Cutting means protective cover
A protective cover for the cutting means shall be provided. It shall be suitable for covering
the cutting means during transportation or when the grass shear is stored.
The cover shall stay in its protective position when holding the grass shear with the covered
cutting means pointing vertically downwards.
Compliance is checked by inspection and by practical test.
23 Internal wiring
This clause of Part 1 is applicable.
24 Components
This clause of Part 1 is applicable except as follows.
24.1.3 Addition:
Switches operated by the cutting means control to energise the motor shall have a total
contact separation of at least 3 mm. This shall be achieved either by single or double pole
disconnection.
Switches shall have been satisfactorily tested for at least 50 000 operations.

– 16 – 60335-2-94 © IEC:2008(E)
25 Supply connection and external flexible cords
This clause of Part 1 is applicable except as follows.
25.1 Addition:
Appliance inlets shall not allow the introduction of a connector complying with the standard
sheets of IEC 60320 except for IEC 60320-2-3.
Compliance is checked by inspection.
25.5 Replacement:
Appliances shall be provided with one of the following:
− a supply cord not less than 6 m in length with the type X attachment, or
− a supply cord of length not exceeding 0,3 m with type X or Y attachment and terminating
in a cable coupler, or
− an appliance inlet.
25.7 Replacement of the first paragraph:
Power supply cords shall not be lighter than,
− if rubber insulated, ordinary tough rubber sheathed flexible cord (code designation
60245 IEC 53);
− if polyvinyl chloride insulated, ordinary polyvinyl chloride sheathed flexible cord (code
designation 60227 IEC 53).
25.7.101
The mains cord shall exit at or towards the rear of the enclosure and be in a direction away
from the cutter blades.
26 Terminals for external conductors
This clause of Part 1 is applicable.
27 Provision for earthing
This clause of Part 1 is applicable.
28 Screws and connections
This clause of Part 1 is applicable.
29 Clearances, creepage distances and solid insulation
This clause of Part 1 is applicable except as follows.
29.2 Addition:
Pollution degree 3 applies for this machine.

60335-2-94 © IEC:2008(E) – 17 –
30 Resistance to heat and fire
This clause of Part 1 is applicable except as follows.
30.2.3 Not applicable.
31 Resistance to rusting
This clause of Part 1 is replaced by the following.
Ferrous parts, the rusting of which might cause the tool to fail to comply with this standard,
shall be adequately protected against rusting.
Compliance is checked by the following test:
All grease is removed from the parts to be tested by immersing them in a suitable degreasing
agent for 10 min.
The parts are then immersed for 10 min in a 10 % solution of ammonium chloride in water at a
temperature of (20 ± 5) °C.
Without drying, but after shaking off any drops, the parts are placed for 10 min in a box
containing air saturated with moisture at a temperature of (20 ± 5) °C.
After the parts have been dried for 10 min in a heating cabinet at a temperature of
(100 ± 5) °C, their surfaces shall show no signs of rust.
When using the liquids specified for the test, adequate precautions must be taken to prevent
the inhalation of their vapours.
Traces of rust on sharp edges and any yellowish film removable by rubbing are ignored.
For small helical springs and the like, and for parts exposed to abrasion, a layer of grease
may provide sufficient protection against rusting. Such parts are only subjected to the test if
there is doubt about the effectiveness of the grease film, and the test is then made without
previous removal of the grease.
32 Radiation, toxicity and similar hazards
This clause of Part 1 is not applicable.

– 18 – 60335-2-94 © IEC:2008(E)

IEC  2368/07
Key
1 Cutter blade (bottom) 2 Cutter blade (top)
3 Blade teeth 4 Cutting width
Figure 101 – Parts of cutting means (see 3.103, 3.104) –
Cutting width (see 3.101)
IEC  2369/07
Figure 102 – Examples of grass shears (see 3.102)

60335-2-94 © IEC:2008(E) – 19 –

Dimension in millimetres
≥2
IEC  2370/07
Key
1 Shear plate
2 Cutter blade
Figure 103 – Cutter blade extension (see 20.103)

– 20 – 60335-2-94 © IEC:2008(E)

X
IEC  2372/07
IEC  2371/07
a) Handle not attached at front
(does not comply with 20.104) b) Handle attached at front
(complies with 20.104)
Y
X
IEC  2373/07
IEC  2374/07
c) Handle attached at front and rear
d) Handle attached at front and rear
(does not comply with 20.104)
(complies with 20.104)
Key
X ≥ 120 mm
Y < 120 mm
Figure 104 – Examples of compliance/non-compliance and measurement method
for hand protection (see 20.104)

60335-2-94 © IEC:2008(E) – 21 –

Dimension in millimetres
IEC  2375/07
Key
1 String
2 Smooth horizontal concrete
Figure 105 – Example showing the layout for the strength test and a possible
orientation for the grass shear (see 21.101.1)
900 ± 10
– 22 – 60335-2-94 © IEC:2008(E)

V = 1 m/s
IEC  2376/07
Key
1 Copper tube
2 Grass shear fixed on a steel or concrete base
3 Steel or concrete base
V Speed and direction of movement of copper tube
Figure 106 – Cutting means strength test (see 21.102)

60335-2-94 © IEC:2008(E) – 23 –

Dimensions in millimetres
C
A
∅12,3
B
∅12,1
A
∅12,0
R1 (3 ± 1 typical)
D B
E
IEC  2377/07
Key
A Weight
B Harden steel chisel
C Fixing arm
D Sample
E Base having a mass of 10 kg
Figure 107 – Device for impact test (see 22.35)
– 24 – 60335-2-94 © IEC:2008(E)
Annexes
The annexes of Part 1 are applicable except as follows.
Annex B
(normative)
Appliances powered by rechargeable batteries
Part 1 applies, as indicated in this part 2, with the following modifications.
7.1 Modification:
rd
Delete 3 indent.
11 Heating
This clause of Part 1 is not applicable.
18 Endurance
This clause of Part 1 is not applicable.
22.40  Addition:
Battery powered grass shears shall either have a disabling device or the cutting means
control shall require two separate and dissimilar actions before the cutting means can be
powered. If the control on the machine uses the two dissimilar actions option and the control
on the extension handle uses the guarding option, the instruction manual shall require the
user to remove the extension handle before maintenance, storage or leaving the machine
unattended.
For the purposes of this standard, a battery that can be removed without the use of tools is
considered to be a disabling device.
It shall not be possible for the grass shear to operate whilst the battery is being charged. This
condition is considered to be met if the charger is so low powered that it can not operate a
grass shear after the battery(ies) have been discharged by running the shear until the unit no
longer operates.
Requirements for tools with this type of battery can be found in Annexes K and L of
IEC 60745-1. Annexes K and L of IEC 60745-1 are only applicable for battery tests.

60335-2-94 © IEC:2008(E) – 25 –
24.1.3 This subclause of Part 1 is not applicable.
24.101 Power switches
24.101.1 Power switches shall have adequate bre
...