IEC 62841-2-22:2025

IEC 62841-2-22 ®
Edition 1.0 2025-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 2-22: Particular requirements for hand-held cut-off machines

Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 2-22: Exigences particulières pour les tronçonneuses portatives
ICS 25.140.20  ISBN 978-2-8327-0324-3

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– 2 – IEC 62841-2-22:2025 © IEC 2025
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 7
4 General requirements . 12
5 General conditions for the tests . 12
6 Radiation, toxicity and similar hazards . 12
7 Classification . 12
8 Marking and instructions . 13
9 Protection against access to live parts . 18
10 Starting . 18
11 Input and current . 18
12 Heating . 18
13 Resistance to heat and fire . 18
14 Moisture resistance . 18
15 Resistance to rusting . 21
16 Overload protection of transformers and associated circuits . 21
17 Endurance . 21
18 Abnormal operation . 22
19 Mechanical hazards . 23
20 Mechanical strength . 31
21 Construction . 37
22 Internal wiring . 40
23 Components . 40
24 Supply connection and external flexible cords . 41
25 Terminals for external conductors . 42
26 Provision for earthing . 42
27 Screws and connections . 42
28 Creepage distances, clearances and distances through insulation . 42
Annexes . 43
Annex I (informative) Measurement of noise and vibration emissions . 44
Annex K (normative) Battery tools and battery packs . 56
Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources . 59
Bibliography . 60

Figure 101 – Examples of cut-off machines . 10
Figure 102 – Example of a flush cutter with diamond cutting wheel . 10
Figure 103 – Example of a power cutter . 11
Figure 104 – Example of a utility cutter . 11
Figure 105 – Example of a wall chaser . 12
Figure 106 – Examples of segmented diamond cutting wheel constructions . 17

Figure 107 – Design examples for wheel guards . 25
Figure 108 – Principal dimensions of flanges . 28
Figure 109 – Type 41 cut-off wheel . 29
Figure 110 – Type 42 cut-off wheel . 29
Figure 111 – Cut-off machine drop position 1 . 32
Figure 112 – Cut-off machine drop position 2 . 32
Figure 113 – Cut-off machine drop position 3 . 33
Figure 114 – Guard strength test: explanation of guard positions . 35
Figure 115 – Guard strength test: preparation of the cut-off machine . 36
Figure 116 – Measurement of handle gripping length . 39
Figure 117 – Measurement of handle gripping length . 39
Figure 118 – Measurement of handle gripping length for a handle with finger grips or
similar superimposed profiles . 40
Figure I.101 – Test set up (side view) . 46
Figure I.102 – Test set up (top view) . 46
Figure I.103 – Noise set up for wall chasers (side view) . 48
Figure I.104 – Side view cutting-off steel . 50
Figure I.105 – Top view cutting-off steel . 51
Figure I.106 – Positions of transducers for cut-off-machines . 53
Figure I.107 – Vibration test set-up for wall chasers (side view) . 55

Table 4 – Required performance levels . 22
Table 101 – Torques for testing flanges . 30
Table 102 – Guard thickness for diamond cutting wheels . 34
Table 8 – Minimum cross-sectional area and AWG sizes of supply cords . 41
Table I.101 – Operating conditions for cut-off machines other than wall chasers and
other than tools only intended for cutting metal . 45
Table I.102 – Noise test conditions for wall chasers . 47
Table I.103 – Operating conditions for cut-off machines only intended for cutting metal . 49
Table I.104 – Concrete specifications . 51
Table I.105 – Detailed example of a concrete formulation that fulfils the requirements
of Table I.104 . 52
Table I.106 – Depth setting and width setting for noise and vibration testing of wall
chasers . 52
Table I.107 – Vibration test conditions for wall chasers . 54

– 4 – IEC 62841-2-22:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY – SAFETY –

Part 2-22: Particular requirements for hand-held cut-off machines

FOREWORD
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shall not be held responsible for identifying any or all such patent rights.
IEC 62841-2-22 has been prepared by IEC technical committee 116: Safety of motor-operated
electric tools. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
116/870/FDIS 116/887/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
This document is to be used in conjunction with IEC 62841-1:2014.
This document supplements or modifies the corresponding clauses in IEC 62841-1, so as to
convert it into the IEC Standard: Particular requirements for hand-held cut-off machines.
Where a particular subclause of IEC 62841-1 is not mentioned in this document, that subclause
applies as far as reasonable. Where this document states "addition", "modification" or
"replacement", the relevant text in IEC 62841-1 is to be adapted accordingly.
The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– terms defined in Clause 3: in bold type
– notes: in small roman type.
Subclauses, notes, tables and figures which are additional to those in IEC 62841-1 are
numbered starting from 101.
Subclauses, notes, tables and figures in Annex K and Annex L which are additional to those in
the main body of this document are numbered starting from 301.
A list of all parts in the IEC 62841 series, published under the general title Electric motor-
operated hand-held tools, transportable tools and lawn and garden machinery – Safety, can be
found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
NOTE 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 36 months from the date of publication.

– 6 – IEC 62841-2-22:2025 © IEC 2025
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY – SAFETY –

Part 2-22: Particular requirements for hand-held cut-off machines

1 Scope
IEC 62841-1:2014, Clause 1 is applicable, except as follows:
Replacement of the third paragraph:
The rated voltage is not more than 250 V for single-phase a.c. or d.c. tools, and 480 V for
three-phase a.c. tools.
Addition:
This document applies to hand-held cut-off machines fitted with
– one bonded reinforced wheel of Type 41 or Type 42; or
– one or more diamond cutting wheels with peripheral gaps, if any,
• having no positive rake angle; and
• not exceeding 10 mm for cut-off machines other than flush cutters, power cutters
and wall chasers;
and with
– a rated no-load speed not exceeding a peripheral speed of the wheel of 100 m/s at rated
capacity; and
– a rated capacity not exceeding 430 mm.
NOTE 101 An example of a permitted diamond cutting wheel construction is shown in Figure 106.
These tools are intended to cut materials such as metals, concrete, masonry, glass and tile.
This document does not apply to:
– cut-off machines that can be converted to a grinder, sander or polisher, which are covered
by IEC 62841-2-3;
– circular saws which are covered by IEC 62841-2-5; and
– die grinders and small rotary tools which are covered by IEC 62841-2-23;
– tools intended to cut wood, except for utility cutters;
– cut-off machines fitted with a bonded reinforced wheel of Type 42 with a diameter
exceeding 230 mm.
2 Normative references
IEC 62841-1:2014, Clause 2 is applicable, except as follows:
Addition:
IEC 61008-1:2010, Residual current operated circuit-breakers without integral overcurrent
protection for household and similar uses (RCCBs) – Part 1: General rules
IEC 61008-1:2010/AMD1:2012
IEC 61008-1:2010/AMD2:2013
IEC 62841-1:2014, Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety – Part 1: General requirements
ISO 19432-1:2020, Building construction machinery and equipment – Portable, hand-held,
internal combustion engine-driven abrasive cutting machines – Part 1: Safety requirements for
cut-off machines for centre-mounted rotating abrasive wheels
3 Terms and definitions
IEC 62841-1:2014, Clause 3 is applicable, except as follows:
Addition:
3.101
blotter
thin piece of an easily compressible material, between the abrasive wheel and flange
3.102
bonded reinforced wheel
accessory for cutting-off applications that are bonded by means of material such as resin,
rubber, shellac or other similar bonding agents and which are reinforced by webbing, fabric or
filament
Note 101 to entry: Bonded reinforced wheels are covered in ISO 603-15:2022 and ISO 603-16:2022.
Note 102 to entry: In the United States of America, bonded reinforced wheels are covered in
ANSI/UAMA B7.1:2017.
3.103
cut-off machine
hand-held tool designed to cut by means of the periphery of a rotating abrasive cut-off wheel
(bonded reinforced wheel or diamond cutting wheel) where the wheel is fixed on a spindle
Note 101 to entry: See Figure 101.
3.104
diamond cutting wheel
metal accessory with the abrasives located on the periphery of the wheel
3.105
flange
collar, disc, or plate between or against which wheels are mounted
___________
There exists a consolidated version (Edition 3.2:2013) which includes IEC 61008-1:2010 and its Amendment 1
(2012) and Amendment 2 (2013).

– 8 – IEC 62841-2-22:2025 © IEC 2025
3.105.1
inner flange
part that contacts and provides support to the back side of the wheel and is located on the
spindle between wheel and tool
3.105.2
outer flange
part that supports the front side of the wheel and secures and clamps the wheel to the spindle
and the inner flange
3.106
flush cutter
cut-off machine that is designed to perform flush cutting operations
Note 101 to entry: See Figure 102.
Note 102 to entry: An example of a flush cutting operation is cutting a groove in a floor that is very close to a wall.
3.107
guide plate
flat plate mounted on the machine which rests on the material to be cut
3.108
guide roller
roller mounted on the machine which rests on the material to be cut
3.109
power cutter
cut-off machine for cutting surfaces or materials with a standing operator and is provided with
a front and rear handle that are located behind the rotating abrasive cut-off wheel
Note 101 to entry: See Figure 103.
3.110
rated capacity
maximum intended diameter of the rotating accessory to be fitted on the tool as recommended
by the manufacturer's instructions
3.111
utility cutter
cut-off machine with a rated capacity not exceeding 100 mm
Note 101 to entry: See Figure 104.
3.112
wall chaser
cut-off machine on which one or more diamond cutting wheels are mounted and used for
non-through cutting operations
Note 101 to entry: See Figure 105.
3.113
wheel guard
device which partly encloses the abrasive wheel and gives protection to the operator

a) Example of a cut-off machine

b) Example of a cut-off machine with guide plate and diamond cutting wheel

– 10 – IEC 62841-2-22:2025 © IEC 2025

c) Example of a cut-off machine with dust extraction

Key
1 wheel guard
2 handle
3 wheel
Figure 101 – Examples of cut-off machines

Figure 102 – Example of a flush cutter with diamond cutting wheel

Key
1 wheel guard
2 handle
3 wheel
Figure 103 – Example of a power cutter

Key
1 wheel guard
2 handle
3 wheel
Figure 104 – Example of a utility cutter

– 12 – IEC 62841-2-22:2025 © IEC 2025

Figure 105 – Example of a wall chaser
4 General requirements
IEC 62841-1:2014, Clause 4 is applicable.
5 General conditions for the tests
IEC 62841-1:2014, Clause 5 is applicable, except as follows:
5.17 Addition:
The mass of a cut-off machine includes the wheel guard, the flanges, the handles and the
guide plate or guide roller, if any.
6 Radiation, toxicity and similar hazards
IEC 62841-1:2014, Clause 6 is applicable.
7 Classification
IEC 62841-1:2014, Clause 7 is applicable.

8 Marking and instructions
IEC 62841-1:2014, Clause 8 is applicable, except as follows:
8.1 Addition:
Tools shall also be marked with:
– rated no-load speed; and
– rated capacity.
NOTE 101 The requirement for marking rated capacity does not prohibit the additional marking of smaller permitted
diameters of the rotating accessory other than rated capacity (e.g. 230 mm, where 300 mm is the rated capacity).
8.2 Addition:
Tools shall also be marked with:
– " WARNING Always wear eye protection" or sign M004 of ISO 7010 (2011-05) or the
following product safety label:

The eye protection symbol may be modified by adding other personal protective equipment such
as ear protection, dust mask, etc.
NOTE 101 In Canada and the United States of America, the following additional requirement applies:
– WARNING To reduce the risk of injury, use only abrasive cut-off wheels rated at least equal to the maximum
speed marked on the tool.
In Canada, the equivalent French wording is as follows: "AVERTISSEMENT Pour réduire le risque de blessure,
utiliser uniquement les accessoires convenant au moins à la vitesse maximale indiquée sur l'outil."
If the above cautionary markings are included as part of a list of cautionary markings, the words "WARNING To
reduce the risk of injury" and "AVERTISSEMENT Pour réduire le risque de blessure" need not be repeated.
8.3 Addition:
The direction(s) of rotation of the spindle shall be indicated on the tool by an arrow, raised or
recessed or by any other means no less visible and indelible.
8.14.1.1 Addition:
The additional safety instructions as specified in 8.14.1.101 shall be given. This part may be
printed separately from the "General Power Tool Safety Warnings".
8.14.1.101 Safety instructions for abrasive cutting-off operations
1) Cut-off machine safety warnings
a) Use only bonded reinforced or diamond cut-off wheels for your power tool. Just
because an accessory can be attached to your power tool, it does not assure safe
operation.
NOTE 101 Use the wording "bonded reinforced" or "diamond" as applicable in item a) above, depending
on the permitted wheel construction in accordance with 8.14.2 a) 102).

– 14 – IEC 62841-2-22:2025 © IEC 2025
b) Do not use segmented diamond cut-off wheels with a positive rake angle. Use of
such diamond cut-off wheels can increase the risk of personal injury.
c) Do not use segmented diamond cut-off wheels with a peripheral gap greater than
10 mm. Use of such diamond cut-off wheels can increase the risk of personal injury.
NOTE 102 The warning in item c) above can be omitted for flush cutters, power cutters and wall
chasers.
d) The rated speed of the cut-off wheel must be at least equal to the maximum speed
marked on the power tool. Accessories running faster than their rated speed can break
and fly apart.
e) Wheels must be used only for recommended applications. For example: do not
grind with the side of cut-off wheel. Abrasive cut-off wheels are intended for peripheral
grinding, side forces applied to these wheels may cause them to shatter.
f) Always use undamaged wheel flanges that are of correct diameter for your
selected wheel. Proper wheel flanges support the wheel thus reducing the possibility of
wheel loosening or breakage.
NOTE 103 The warning in item f) above is omitted for tools that are not required to be provided with flanges
in accordance with 19.103.3.
g) Do not use cut-off wheels that require liquid coolants. Using water or other liquid
coolants may result in electrocution or shock.
NOTE 104 The warning in item g) above is omitted for tools specifically designed for use with a liquid
system.
h) Do not use worn down reinforced wheels from larger power tools. Wheels intended
for a larger power tool are not suitable for the higher speed of a smaller tool and may
burst.
NOTE 105 The warning in item h) above is omitted for tools only designated to be used with diamond
cutting wheels.
i) The outside diameter and the thickness of your cut-off wheel must be within the
capacity rating of your power tool. Incorrectly sized cut-off wheels cannot be
adequately guarded or controlled.
j) The arbour size of wheels and flanges must properly fit the spindle of the power
tool. Wheels and flanges with arbour holes that do not match the mounting hardware of
the power tool will run out of balance, vibrate excessively and may cause loss of control.
NOTE 106 The text "and flanges" in item j) above is omitted if the tool is provided with a means for mounting
wheels other than flanges in accordance with 19.103.3.
k) Use all mounting screws when mounting diamond wheels directly to the inner
flange and ensure they are tightened properly. If not mounted correctly, the diamond
wheel can get out of balance and cause the wheel to separate from the tool spindle.
NOTE 107 The warning in item k) above is omitted for tools that are not intended to be directly screwed
onto the inner flange.
l) Do not use damaged cut-off wheels. Before each use, inspect the cut-off wheels
for chips and cracks. If the power tool or cut-off wheel is dropped, inspect for
damage or install an undamaged cut-off wheel. After inspecting and installing the
cut-off wheel, position yourself and bystanders away from the plane of the rotating
cut-off wheel and run the power tool at maximum no load speed. If unusual
vibration is detected, turn the power tool off immediately and replace the cut-off
wheel. If unusual vibration is not detected, continue to run the power tool for one
minute. Damaged cut-off wheels will normally break apart during this test time.
m) Wear personal protective equipment. Depending on the application, use a face
shield, safety goggles or safety glasses. As appropriate, wear breathing
protection, such as a dust mask or respirator, hearing protection, gloves and
workshop apron capable of stopping small abrasive or workpiece fragments. The
eye protection must be capable of stopping flying debris generated by various
operations. The breathing protection must be capable of filtrating particles generated by
your operation. Prolonged exposure to high intensity noise may cause hearing loss.

n) The guard provided with the tool must be securely attached to the power tool and
positioned for maximum safety, so the least amount of wheel is exposed towards
the operator. Position yourself and bystanders away from the plane of the rotating
wheel. The guard helps to protect operator from broken wheel fragments and accidental
contact with wheel.
o) Keep bystanders a safe distance away from work area. Anyone entering the work
area must wear personal protective equipment. Fragments of workpiece or of a
broken wheel may fly away and cause injury beyond immediate area of operation.
p) Do not operate the power tool near flammable materials. Sparks could ignite these
materials.
q) Hold the power tool by insulated gripping surfaces only, when performing an
operation where the cut-off wheel may contact hidden wiring or its own cord. A
cut-off wheel contacting a "live" wire may make exposed metal parts of the power tool
"live" and could give the operator an electric shock.
r) Position the cord clear of the spinning cut-off wheel. If you lose control, the cord
may be cut or snagged and your hand or arm may be pulled into the spinning wheel.
s) Never lay the power tool down until the cut-off wheel has come to a complete stop.
The spinning cut-off wheel may grab the surface and pull the power tool out of your
control.
t) Do not run the power tool while carrying it at your side. Accidental contact with the
spinning cut-off wheel could snag your clothing, pulling the cut-off wheel into your body.
u) Regularly clean the power tool's air vents. The motor's fan will draw the dust inside
the housing and excessive accumulation of powdered metal may cause electrical
hazards.
2) Further safety instructions for abrasive cutting-off operations
Kickback and related warnings
Kickback is a sudden reaction to a pinched or snagged rotating cut-off wheel. Pinching or
snagging causes rapid stalling of the rotating cut-off wheel which in turn causes the uncontrolled
power tool to be forced in the direction opposite of the cut-off wheel's rotation at the point of
the binding.
For example, if a cut-off wheel is snagged or pinched by the workpiece, the edge of the cut-off
wheel that is entering into the pinch point can dig into the surface of the material causing the
cut-off wheel to climb out or kick out. The cut-off wheel may either jump toward or away from
the operator, depending on direction of the cut-off wheel's movement at the point of pinching.
Cut-off wheels may also break under these conditions.
Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions
and can be avoided by taking proper precautions as given below.
a) Maintain a firm grip with both hands on the power tool and position your body and
arm to allow you to resist kickback forces. Always use auxiliary handle, if
provided, for maximum control over kickback or torque reaction during start-up.
The operator can control torque reactions or kickback forces, if proper precautions are
taken.
b) Never place your hand near the rotating cut-off wheel. The cut-off wheel may
kickback over your hand.
c) Do not position your body in the area where power tool will move if kickback
occurs. Kickback will propel the tool in direction opposite to the cut-off wheel's
movement at the point of snagging.
d) Use special care when working corners, sharp edges etc. Avoid bouncing and
snagging the cut-off wheel. Corners, sharp edges or bouncing have a tendency to snag
the rotating cut-off wheel and cause loss of control or kickback.

– 16 – IEC 62841-2-22:2025 © IEC 2025
e) Do not attempt to do curved cutting. Overstressing the cut-off wheel increases the
loading and susceptibility to twisting or binding of the cut-off wheel in the cut and the
possibility of kickback or cut-off wheel breakage, which can lead to serious injury.
f) Do not attach a saw chain, woodcarving blade or toothed saw blade. Such blades
create frequent kickback and loss of control.
g) Do not attach a segmented diamond wheel with a peripheral gap greater than
10 mm. Such blades create frequent kickback and loss of control.
NOTE 108 The warning in item g) above can be omitted for flush cutters, power cutters and wall
chasers.
h) Do not "jam" the cut-off wheel or apply excessive pressure. Do not attempt to make
an excessive depth of cut. Overstressing the cut-off wheel increases the loading and
susceptibility to twisting or binding of the cut-off wheel in the cut and the possibility of
kickback or cut-off wheel breakage.
i) When the cut-off wheel is binding or when interrupting a cut for any reason, switch
off the power tool and hold the power tool motionless until the cut-off wheel comes
to a complete stop. Never attempt to remove the cut-off wheel from the cut while
the cut-off wheel is in motion otherwise kickback may occur. Investigate and take
corrective action to eliminate the cause of cut-off wheel binding.
j) Do not restart the cutting operation in the workpiece. Let the cut-off wheel reach
full speed and carefully re-enter the cut. The cut-off wheel may bind, walk up or
kickback if the power tool is restarted in the workpiece.
k) Support panels or any oversized workpiece to minimize the risk of cut-off wheel
pinching and kickback. Large workpieces tend to sag under their own weight. Supports
must be placed under the workpiece near the line of cut and near the edge of the
workpiece on both sides of the cut-off wheel.
l) Use extra caution when making a "pocket cut" into existing walls or other blind
areas. The protruding cut-off wheel may cut gas or water pipes, electrical wiring or
objects that can cause kickback.
8.14.2 a) Addition:
101) Instruction on which types of accessories and wheel guards can be used with the tool;
102) Permitted wheel construction (diamond cutting wheel or bonded reinforced wheel),
including wheel diameter and thickness. If a diamond cutting wheel is segmented,
instruction that the segments shall have no positive rake angle. For tools other than
flush cutters, power cutters and wall chasers, instruction that the maximum
peripheral gap of the segments is 10 mm;
NOTE 101 Examples of segmented diamond cutting wheel constructions are shown in Figure 106.
103) Explanation of the term bonded reinforced wheel or type designation, if applicable;
104) Instruction on the correct use of the dust collection system, if any.

Dimensions in millimetres
Key
1 direction of rotation
2 gap
3 leading tip of segment
4 negative rake angle
5 positive rake angle
Figure 106 – Examples of segmented diamond cutting wheel constructions

– 18 – IEC 62841-2-22:2025 © IEC 2025
8.14.2 b) Addition:
101) Information on the proper use of blotters, if they are provided with a bonded reinforced
wheel;
102) Information about the specific flanges to be used with all accessories in accordance
with 8.14.2 a) 101). Instruction on the mounting of accessories and the use of the
correct flanges and screw(s) or a non-reusable plate mount or other non-threaded
mounting affixed to the wheel in accordance with 19.103, as applicable;
103) Instruction for the mounting and securing of the wheel guard identifying allowable
adjustments to ensure maximum protection of the operator;
104) Instruction to the operator on the use of all the different types of wheels specified in the
instructions in accordance with 8.14.2 a) 101), e.g. bonded reinforced wheel or
diamond cutting wheel;
105) Instruction on proper support for the workpiece;
106) If a guide roller or guide plate is removable or adjustable, instructions on its use and
settings.
8.14.2 c) Addition:
101) Instruction on storage and handling of specified accessories.
9 Protection against access to live parts
IEC 62841-1:2014, Clause 9 is applicable.
10 Starting
IEC 62841-1:2014, Clause 10 is applicable.
11 Input and current
IEC 62841-1:2014, Clause 11 is applicable.
12 Heating
IEC 62841-1:2014, Clause 12 is applicable.
13 Resistance to heat and fire
IEC 62841-1:2014, Clause 13 is applicable.
14 Moisture resistance
IEC 62841-1:2014, Clause 14 is applicable, except as follows:
14.3 Replacement:
Liquid systems or spillage of liquid shall not subject the user to an increased risk of electrical
shock.
If the tool is rated at least IPX4 in accordance with IEC 62841-1:2014, 14.2, this requirement is
deemed to be fulfilled.
Compliance is checked by the following test.
The residual current device, if any, shall be disabled during the test. Electrical components,
covers and other parts which can be removed without the aid of a tool are removed, except
those fulfilling the test of IEC 62841-1:2014, 21.22.
The tool is prepared with approximately 1,0 % NaCl solution in the following modes if applicable:
– as described in 8.14.2;
– the liquid container of the tool is completely filled, and a further quantity, equal to 15 % of
the capacity of the container, or 0,25 l, whichever is the greater, is poured in steadily over
+0
a period of 60 −10 s, while the tool is resting in its filling position in accordance with
IEC 62841-1:2014, 8.14.2 d);
– a detachable liquid container is filled completely and mounted and dismounted 10 times on
the tool.
In each applicable preparation, the tool is operated at rated voltage in each position consistent
with the instructions according to 8.14.2 b) for 1 min while monitoring the leakage current as in
IEC 62841-1:2014, Clause C.3.
For 3-phase cut-off machines with a rated input exceeding 3 700 W, during the test the
leakage current shall not exceed:
– 5 mA for a, b and c in IEC 62841-1:2014, Figure C.2 in the closed position;
– 10 mA for the test repeated with each of the switches a, b, c in IEC 62841-1:2014,
Figure C.2 open in turn, the
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