EN IEC 62841-2-22:2025

SLOVENSKI STANDARD
oSIST prEN IEC 62841-2-22:2024
01-junij-2024
Elektromotorna ročna orodja, prenosna orodja ter stroji za trato in vrt - Varnost - 2-
22. del: Posebne zahteve za ročne rezalne stroje
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
Ta slovenski standard je istoveten z: prEN IEC 62841-2-22:2024
ICS:
25.140.20 Električna orodja Electric tools
oSIST prEN IEC 62841-2-22:2024 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 62841-2-22:2024

oSIST prEN IEC 62841-2-22:2024

116/749/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62841-2-22 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-04-26 2024-06-21
SUPERSEDES DOCUMENTS:
116/568/CDV, 116/618/RVC
IEC TC 116 : SAFETY OF MOTOR-OPERATED ELECTRIC TOOLS
SECRETARIAT: SECRETARY:
United States of America Mr Joseph Harding
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
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

PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

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1 CONTENTS
2 FOREWORD . 4
3 1 Scope . 6
4 2 Normative references . 6
5 3 Terms and definitions . 7
6 4 General requirements . 12
7 5 General conditions for the tests . 12
8 6 Radiation, toxicity and similar hazards . 12
9 7 Classification . 12
10 8 Marking and instructions . 12
11 9 Protection against access to live parts . 18
12 10 Starting . 18
13 11 Input and current . 18
14 12 Heating . 18
15 13 Resistance to heat and fire . 18
16 14 Moisture resistance . 18
17 15 Resistance to rusting . 21
18 16 Overload protection of transformers and associated circuits . 21
19 17 Endurance . 21
20 18 Abnormal operation . 21
21 19 Mechanical hazards . 22
22 20 Mechanical strength . 30
23 21 Construction . 37
24 22 Internal wiring . 40
25 23 Components . 40
26 24 Supply connection and external flexible cords . 40
27 25 Terminals for external conductors . 41
28 26 Provision for earthing . 41
29 27 Screws and connections . 41
30 28 Creepage distances, clearances and distances through insulation . 41
31 Annex I (informative) Measurement of noise and vibration emissions . 43
32 Annex K (normative) Battery tools and battery packs . 55
33 Annex L (normative) Battery tools and battery packs provided with mains connection
34 or non-isolated sources . 57
35 Bibliography . 58
37 Figure 101 – Examples of cut-off machines . 10
38 Figure 102 – Example of a flush cutter . 10
39 Figure 103 – Example of a power cutter . 11
40 Figure 104 – Example of a utility cutter . 11
41 Figure 105 – Example of a wall chaser . 12
42 Figure 106 – Examples of segmented diamond cutting wheel constructions . 17
43 Figure 107 – Design examples for wheel guards . 25
44 Figure 108 – Principal dimensions of flanges . 28
45 Figure 109 – Type 41 cut-off wheel . 28

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46 Figure 110 – Type 42 cut-off wheel . 28
47 Figure 111 – Cut-off machine drop position 1 . 31
48 Figure 112 – Cut-off machine drop position 2 . 31
49 Figure 113 – Cut-off machine drop position 3 . 32
50 Figure 114 – Guard strength test: explanation of guard positions . 34
51 Figure 115 – Guard strength test: preparation of the cut-off machine . 36
52 Figure 116 – Measurement of handle gripping length . 39
53 Figure 117 – Measurement of handle gripping length . 39
54 Figure 118 – Measurement of handle gripping length for a handle with finger grips or
55 similar superimposed profiles . 40
56 Figure I.101 - Test set up (side view) . 45
57 Figure I.102 - Test set up (top view) . 45
58 Figure I.103 - Noise set up for wall chasers (side view). 47
59 Figure I.104 - Side view cutting-off steel . 49
60 Figure I.105 - Top view cutting-off steel . 50
61 Figure I.106 – Positions of transducers for cut-off-machines other than power cutters . 52
62 Figure I.107 – Positions of transducers for power cutters . 52
63 Figure I.108 – Vibration test set-up for wall chasers (side view) . 54
65 Table 4 – Required performance levels . 22
66 Table 101 – Torques for testing flanges . 29
67 Table 102 – Guard thickness for diamond cutting wheels . 33
68 Table 8 – Minimum cross-sectional area and AWG sizes of supply cords . 41
69 Table I.101 - Operating conditions for cut-off machines other than wall chasers and
70 tools only intended for cutting metal . 44
71 Table I.102 – Noise test conditions for wall chasers . 46
72 Dimensions in millimetres . 47
73 Table I.103 - Operating conditions for cut-off machines only intended for cutting metal . 48
74 Dimensions in millimetres . 50
75 Table I.104 – Concrete specifications . 50
76 Table I.105 – Detailed example of a concrete formulation that fulfils the requirements
77 of Table I.104 . 51
78 Table I.106 – Categories of wall chasers according to the cutting depth of the tool . 51
79 Dimensions in millimetres . 51
80 Table I.107 — Vibration test conditions for wall chasers . 53
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83 INTERNATIONAL ELECTROTECHNICAL COMMISSION
84 ____________
86 ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
87 TOOLS AND LAWN AND GARDEN MACHINERY –
88 SAFETY –
90 Part 2-22: Particular requirements for hand-held cut-off machines
92 FOREWORD
93 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
94 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
95 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
96 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
97 Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
98 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
99 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
100 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
101 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
102 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
103 consensus of opinion on the relevant subjects since each technical committee has representation from all
104 interested IEC National Committees.
105 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
106 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
107 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
108 misinterpretation by any end user.
109 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
110 transparently to the maximum extent possible in their national and regional publications. Any divergence between
111 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
112 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
113 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
114 services carried out by independent certification bodies.
115 6) All users should ensure that they have the latest edition of this publication.
116 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
117 members of its technical committees and IEC National Committees for any personal injury, property damage or
118 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
119 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
120 Publications.
121 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
122 indispensable for the correct application of this publication.
123 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
124 rights. IEC shall not be held responsible for identifying any or all such patent rights.
125 IEC 62841-2-22 has been prepared by IEC technical committee 116: Safety of motor-operated
126 electric tools. It is an International Standard.
127 The text of this International Standard is based on the following documents:
FDIS Report on voting
116/XX/FDIS 116/XX/RVD
129 Full information on the voting for its approval can be found in the report on voting indicated in
130 the above table.
131 The language used for the development of this International Standard is English.
132 This document is to be used in conjunction with IEC 62841-1:2014.
133 This document supplements or modifies the corresponding clauses in IEC 62841-1, so as to
134 convert it into the IEC Standard: Particular requirements for hand-held cut-off machines.

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135 Where a particular subclause of IEC 62841-1 is not mentioned in this document, that subclause
136 applies as far as reasonable. Where this document states "addition", "modification" or
137 "replacement", the relevant text in IEC 62841-1 is to be adapted accordingly.
138 The following print types are used:
139 – requirements: in roman type;
140 – test specifications: in italic type;
141 – terms defined in Clause 3: in bold type
142 – notes: in small roman type.
143 Subclauses, notes, tables and figures which are additional to those in IEC 62841-1 are
144 numbered starting from 101.
145 Subclauses, notes, tables and figures in Annex K and Annex L which are additional to those in
146 the main body of this document are numbered starting from 301.
147 A list of all parts in the IEC 62841 series, published under the general title Electric motor-
148 operated hand-held tools, transportable tools and lawn and garden machinery – Safety, can be
149 found on the IEC website.
150 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
151 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
152 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
153 described in greater detail at www.iec.ch/standardsdev/publications.
154 The committee has decided that the contents of this document will remain unchanged until the
155 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
156 specific document. At this date, the document will be
157 • reconfirmed,
158 • withdrawn,
159 • replaced by a revised edition, or
160 • amended.
161 NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing
162 organizations may need a transitional period following publication of a new, amended or revised IEC publication in
163 which to make products in accordance with the new requirements and to equip themselves for conducting new or
164 revised tests.
165 It is the recommendation of the committee that the content of this publication be adopted for implementation nationally
166 not earlier than 36 months from the date of publication.
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168 ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
169 TOOLS AND LAWN AND GARDEN MACHINERY –
170 SAFETY –
172 Part 2-22: Particular requirements for hand-held cut-off machines
176 1 Scope
177 IEC 62841-1:2014, Clause 1 is applicable, except as follows:
178 Replacement of the third paragraph:
179 The rated voltage is not more than 250 V for single-phase a.c. or d.c. tools, and 480 V for
180 three-phase a.c. tools.
181 Addition:
182 This document applies to hand-held cut-off machines fitted with
183 – one bonded reinforced wheel of Type 41 or Type 42; or
184 – one or more diamond cutting wheels with peripheral gaps, if any,
185 • having no positive rake angle for flush cutters, power cutters and wall chasers; and
186 • not exceeding 10 mm and having no positive rake angle for cut-off machines other than
187 flush cutters, power cutters and wall chasers;
188 and with
189 – a rated speed not exceeding a peripheral speed of the wheel of 100 m/s at rated capacity;
190 and
191 – a rated capacity not exceeding 430 mm.
192 NOTE 101 An example of a permitted diamond cutting wheel construction is shown in Figure 101.
193 These tools are intended to cut materials such as metals, concrete, masonry, glass and tile.
194 This document does not apply to:
195 – cut-off machines that can be converted to a grinder, sander or polisher, which are covered
196 by IEC 62841-2-3;
197 – circular saws which are covered by IEC 62841-2-5; and
198 – die grinders and small rotary tools which are covered by IEC 62841-2-23;
199 – tools intended to cut wood, except for utility cutters;
200 – cut-off machines fitted with a bonded reinforced wheel of Type 42 with a diameter
201 exceeding 230 mm.
202 2 Normative references
203 IEC 62841-1:2014, Clause 2 is applicable, except as follows:
204 Addition:
205 EN 1339:2003, Concrete paving flags – Requirements and test methods

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206 IEC 61008-1:2010, Residual current operated circuit-breakers without integral overcurrent
207 protection for household and similar uses (RCCBs) – Part 1: General rules
208 Amendment 1:2012
209 Amendment 2:2013
210 IEC 62841-1:2014, Electric motor-operated hand-held tools, transportable tools and lawn and
211 garden machinery – Safety – Part 1: General requirements
212 ISO 603-15:1999, Bonded abrasive products – Dimensions – Part 15: Grinding wheels for
213 cutting-off on stationary or mobile cutting-off machines
214 ISO 603-16:1999, Bonded abrasive products – Dimensions – Part 16: Grinding wheels for
215 cutting-off on hand-held power tools
216 ISO 630-2:2021, Structural steels – Part 2: Technical delivery conditions for structural steels
217 for general purposes
218 ISO 19432-1:2020, Building construction machinery and equipment – Portable, hand-held,
219 internal combustion engine-driven abrasive cutting machines – Part 1: Safety requirements for
220 cut-off machines for centre-mounted rotating abrasive wheels
221 3 Terms and definitions
222 IEC 62841-1:2014, Clause 3 is applicable, except as follows:
223 Addition:
224 3.101
225 blotter
226 thin piece of an easily compressible material, between the abrasive wheel and flange
227 3.102
228 bonded reinforced wheel
229 wheel for cutting-off applications in accordance with ISO 603-15 and ISO 603-16
230 3.103
231 cut-off machine
232 hand-held tool designed to cut by means of the periphery of a rotating abrasive cut-off wheel
233 (bonded reinforced wheel or diamond cutting wheel) where the wheel is fixed on a spindle
234 Note 101 to entry: See Figure 101.
235 3.104
236 diamond cutting wheel
237 metal wheel with the abrasives located on the periphery of the wheel
238 3.105
239 flange
240 collar, disc, or plate between or against which wheels are mounted
241 3.105.1
242 flange outside diameter
243 outside diameter of the contact surface of a flange
—————————
There exists a consolidated version (Edition 3.2:2013) which includes IEC 61008-1:2010 and its Amendment 1
(2012) and Amendment 2 (2013).

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244 3.105.2
245 inner flange
246 part that contacts and provides support to the back side of the wheel and is located on the
247 spindle between wheel and tool
248 3.105.3
249 outer flange
250 part that supports the front side of the wheel and secures and clamps the wheel to the spindle
251 and the backing flange
252 3.106
253 flush cutter
254 cut-off machine that is designed to perform flush cutting operations
255 Note 101 to entry: See Figure 102.
256 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.
257 3.107
258 guide plate
259 flat plate mounted on the machine which rests on the material to be cut
260 3.108
261 guide roller
262 roller mounted on the machine which rests on the material to be cut
263 3.109
264 power cutter
265 cut-off machine for cutting surfaces or materials with a standing operator and is provided with
266 a front and rear handle that are located behind the rotating abrasive cut-off wheel
267 Note 101 to entry: See Figure 103.
268 3.110
269 rated capacity
270 maximum intended diameter of the rotating accessory to be fitted on the tool as recommended
271 by the manufacturer’s instructions
272 3.111
273 utility cutter
274 cut-off machine with a rated capacity not exceeding 100 mm
275 Note 101 to entry: See Figure 104.
276 3.112
277 wall chaser
278 cut-off machine on which one or more diamond cutting wheels are mounted and used for
279 non-through cutting operations
280 Note 101 to entry: See Figure 105.
281 3.113
282 wheel guard
283 device which partly encloses the abrasive wheel and gives protection to the operator

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285 a) Example of a cut-off machine
287 b) Example of a cut-off machine with base plate
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290 c) Example of a cut-off machine with dust extraction
291 Key
292 1 wheel guard
293 2 handle
294 3 wheel
295 Figure 101 – Examples of cut-off machines
297 Figure 102 – Example of a flush cutter

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299 Key
300 1 wheel guard
301 2 handle
302 3 wheel
303 Figure 103 – Example of a power cutter
305 Key
306 1 wheel guard
307 2 handle
308 3 wheel
309 Figure 104 – Example of a utility cutter

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311 Figure 105 – Example of a wall chaser
312 4 General requirements
313 IEC 62841-1:2014, Clause 4 is applicable.
314 5 General conditions for the tests
315 IEC 62841-1:2014, Clause 5 is applicable, except as follows:
316 5.17 Addition:
317 The mass of a cut-off machine includes the wheel guard, the flanges, the handles and the
318 guide plate or guide roller, if any.
319 6 Radiation, toxicity and similar hazards
320 IEC 62841-1:2014, Clause 6 is applicable.
321 7 Classification
322 IEC 62841-1:2014, Clause 7 is applicable.
323 8 Marking and instructions
324 IEC 62841-1:2014, Clause 8 is applicable, except as follows:
325 8.1 Addition:
326 Tools shall also be marked with:

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327 – rated no-load speed; and
328 – rated capacity.
329 NOTE 101 The requirement for marking rated capacity does not prohibit the additional marking of smaller permitted
330 diameters of the rotating accessory other than rated capacity (e.g.230 mm, where 300 mm is the rated capacity).
331 8.2 Addition:
332 Tools shall also be marked with:
333 – “ WARNING Always wear eye protection” or sign M004 of ISO 7010 or the following
334 product safety label:
336 The eye protection symbol may be modified by adding other personal protective equipment such
337 as ear protection, dust mask, etc.
338 NOTE 101 In Canada and the United States of America, the following additional requirement applies:
339 – WARNING To reduce the risk of injury, use only abrasive cut-off wheels rated at least equal to the maximum
340 speed marked on the tool.
341 In Canada, the equivalent French wording is as follows: “AVERTISSEMENT Pour réduire le risque de blessure,
342 utiliser uniquement les accessoires convenant au moins à la vitesse maximale indiquée sur l’outil.”
343 If the above cautionary markings are included as part of a list of cautionary markings, the words "WARNING To
344 reduce the risk of injury" and “AVERTISSEMENT Pour réduire le risque de blessure” need not be repeated.
345 8.3 Addition:
346 The direction(s) of rotation of the spindle shall be indicated on the tool by an arrow, raised or
347 recessed or by any other means no less visible and indelible.
348 8.14.1.1 Addition:
349 The additional safety instructions as specified in 8.14.1.101 shall be given. This part may be
350 printed separately from the "General Power Tool Safety Warnings".
351 8.14.1.101 Safety instructions for abrasive cutting-off operations
352 1) Cut-off machine safety warnings
353 a) Use only bonded reinforced or diamond cut-off wheels for your power tool. Just because an
354 accessory can be attached to your power tool, it does not assure safe operation.
355 NOTE 101 Use the wording “bonded reinforced” or “diamond” as applicable in item a) above, depending on the
356 designation of the tool.
357 b) Do not use segmented diamond cut-off wheels with a positive rake angle. Use of such diamond
358 cut-off wheels can increase the risk of personal injury.
359 c) Do not use segmented diamond cut-off wheels with a peripheral gap greater than 10 mm. Use
360 of such diamond cut-off wheels can increase the risk of personal injury.
361 NOTE 102 The warning in item c) above is omitted for flush cutters, power cutters and wall chasers.
362 d) The rated speed of the cut-off wheel must be at least equal to the maximum speed marked
363 on the power tool. Accessories running faster than their rated speed can break and fly apart.
364 e) Wheels must be used only for recommended applications. For example: do not grind with
365 the side of cut-off wheel. Abrasive cut-off wheels are intended for peripheral grinding, side forces
366 applied to these wheels may cause them to shatter.

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367 f) Always use undamaged wheel flanges that are of correct diameter for your selected wheel.
368 Proper wheel flanges support the wheel thus reducing the possibility of wheel loosening or
369 breakage.
370 NOTE 103 The warning in item f) above is omitted for tools that are not required to be provided with flanges
371 in accordance with 19.103.3.
372 g) Do not use cut-off wheels that require liquid coolants. Using water or other liquid coolants may
373 result in electrocution or shock.
374 NOTE 104 The warning in item g) above is omitted for tools specifically designed for use with a liquid system.
375 h) Do not use worn down reinforced wheels from larger power tools. Wheels intended for a larger
376 power tool are not suitable for the higher speed of a smaller tool and may burst.
377 NOTE 105 The warning in item h) above is omitted for tools only designated to be used with diamond cutting
378 wheels.
379 i) The outside diameter and the thickness of your cut-off wheel must be within the capacity
380 rating of your power tool. Incorrectly sized cut-off wheels cannot be adequately guarded or
381 controlled.
382 j) The arbour size of wheels and flanges must properly fit the spindle of the power tool. Wheels
383 and flanges with arbour holes that do not match the mounting hardware of the power tool will run
384 out of balance, vibrate excessively and may cause loss of control.
385 NOTE 106 The text “and flanges” in item j) above is omitted if the tool is provided with a means for mounting
386 wheels other than flanges in accordance with 19.103.3.
387 k) Use all mounting screws when mounting diamond wheels directly to the inner flange and
388 ensure they are tightened properly. If not mounted correctly, the diamond wheel can get out of
389 balance and cause the wheel to separate from the tool spindle.
390 NOTE 107 The warning in item k) above is omitted for tools that are not intended to be directly screwed onto
391 the inner flange.
392 l) Do not use damaged cut-off wheels. Before each use, inspect the cut-off wheels for chips
393 and cracks. If the power tool or cut-off wheel is dropped, inspect for damage or install an
394 undamaged cut-off wheel. After inspecting and installing the cut-off wheel, position yourself
395 and bystanders away from the plane of the rotating cut-off wheel and run the power tool at
396 maximum no load speed. If unusual vibration is detected, turn the power tool off immediately
397 and replace the cut-off wheel. If unusual vibration is not detected, continue to run the power
398 tool for one minute. Damaged cut-off wheels will normally break apart during this test time.
399 m) Wear personal protective equipment. Depending on the application, use a face shield, safety
400 goggles or safety glasses. As appropriate, wear breathing protection, such as a dust mask
401 or respirator, hearing protection, gloves and workshop apron capable of stopping small
402 abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris
403 generated by various operations. The breathing protection must be capable of filtrating particles
404 generated by your operation. Prolonged exposure to high intensity noise may cause hearing loss.
405 n) The guard provided with the tool must be securely attached to the power tool and positioned
406 for maximum safety, so the least amount of wheel is exposed towards the operator. Position
407 yourself and bystanders away from the plane of the rotating wheel. The guard helps to protect
408 operator from broken wheel fragments and accidental contact with wheel.
409 o) Keep bystanders a safe distance away from work area. Anyone entering the work area must
410 wear personal protective equipment. Fragments of workpiece or of a broken wheel may fly away
411 and cause injury beyond immediate area of operation.
412 p) Do not operate the power tool near flammable materials. Sparks could ignite these materials.
413 q) Hold the power tool by insulated gripping surfaces only, when performing an operation
414 where the cut-off wheel may contact hidden wiring or its own cord. A cut-off wheel contacting
415 a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an
416 electric shock.
417 r) Position the cord clear of the spinning cut-off wheel. If you lose control, the cord may be cut or
418 snagged and your hand or arm may be pulled into the spinning wheel.
419 s) Never lay the power tool down until the cut-off wheel has come to a complete stop. The
420 spinning cut-off wheel may grab the surface and pull the power tool out of your control.
421 t) Do not run the power tool while carrying it at your side. Accidental contact with the spinning
422 cut-off wheel could snag your clothing, pulling the cut-off wheel into your body.

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423 u) Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the housing
424 and excessive accumulation of powdered metal may cause electrical hazards.
425 2) Further safety instructions for abrasive cutting-off operations
426 Kickback and related warnings
427 Kickback is a sudden reaction to a pinched or snagged rotating cut-off wheel. Pinching or
428 snagging causes rapid stalling of the rotating cut-off wheel which in turn causes the uncontrolled
429 power tool to be forced in the direction opposite of the cut-off wheel’s rotation at the point of
430 the binding.
431 For example, if a cut-off wheel is snagged or pinched by the workpiece, the edge of the cut-off
432 wheel that is entering into the pinch point can dig into the surface of the material causing the
433 cut-off wheel to climb out or kick out. The cut-off wheel may either jump toward or away from
434 the operator, depending on direction of the cut-off wheel’s movement at the point of pinching.
435 Cut-off wheels may also break under these conditions.
436 Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions
437 and can be avoided by taking proper precautions as given below.
438 a) Maintain a firm grip with both hands on the power tool and position your body and arm to
439 allow you to resist kickback forces. Always use auxiliary handle, if provided, for maximum
440 control over kickback or torque reaction during start-up. The operator can control torque
441 reactions or kickback forces, if proper precautions are taken.
442 b) Never place your hand near the rotating cut-off wheel. The cut-off wheel may kickback over your
443 hand.
444 c) Do not position your body in the area where power tool will move if kickback occurs. Kickback
445 will propel the tool in direction opposite to the cut-off wheel’s movement at the point of snagging.
446 d) Use special care when working corners, sharp edges etc. Avoid bouncing and snagging the
447 cut-off wheel. Corners, sharp edges or bouncing have a tendency to snag the rotating cut-off wheel
448 and cause loss of control or kickback.
449 e) Do not attempt to do curved cutting. Overstressing the cut-off wheel increases the loading and
450 susceptibility to twisting or binding of the cut-off wheel in the cut and the possibility of kickback or
451 cut-off wheel breakage, which can lead to serious injury.
452 f) Do not attach a saw chain, woodcarving blade or toothed saw blade. Such blades create
453 frequent kickback and loss of control.
454 g) Do not attach a segmented diamond wheel with a peripheral gap greater than 10 mm. Such
455 blades create frequent kickback and loss of control.
456 NOTE 108 The warning in item g) above is omitted for flush cutters, power cutters and wall chasers.
457 h) Do not “jam” the cut-off wheel or apply excessive pressure. Do not attempt to make an
458 excessive depth of cut. Overstressing the cut-off wheel increases the loading and susceptibility to
459 twisting or binding of the cut-off wheel in the cut and the possibility of kickback or cut-off wheel
460 breakage.
461 i) When the cut-off wheel is binding or when interrupting a cut for any reason, switch off the
462 power tool and hold the power tool motionless until the cut-off wheel comes to a complete
463 stop. Never attempt to remove the cut-off wheel from the cut while the cut-off wheel is in
464 motion otherwise kickback may occur. Investigate and take corrective action to eliminate the
465 cause of cut-off wheel binding.
466 j) Do not restart the cutting operation in the workpiece. Let the cut-off wheel reach full speed
467 and carefully re-enter the cut. The cut-off wheel may bind, walk up or kickback if the power tool is
468 restarted in the workpiece.
469 k) Support panels or any oversized workpiece to minimize the risk of cut-off wheel pinching
470 and kickback. Large workpieces tend to sag under their own weight. Supports must be placed
471 under the workpiece near the line of cut and near the edge of the workpiece on both sides of the
472 cut-off wheel.
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473 l) Use extra caution when making a “pocket cut” into existing walls or other blind areas. The
474 protruding cut-off wheel may cut gas or water pipes, electrical wiring or objects that can cause
475 kickback.
476 8.14.2 a) Addition:
477 101) Instruction on which types of accessories and wheel guards can be used with the tool;
478 102) Permitted wheel construction (diamond cutting wheel or bonded reinforced wheel),
479 including wheel diameter and thickness. If a diamond cutting wheel is segmented,
480 instruction that the segments shall have no positive rake angle. For tools other than
481 flush cutters, power cutters and wall chasers, instruction that the maximum
482 peripheral gap of the segments is 10 mm;
483 NOTE 101 Examples of segmented diamond cutting wheel constructions are shown in Figure 106.
484 103) Explanation of the term bonded reinforced wheel or type designation, if applicable;
485 104) Instruction on the correct use of the dust collection system, if any.
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488 Key
489 1 direction of rotation
490 2 gap
491 3 leading tip of segment
492 4 negative rake angle
493 5 positive rake angle
494 Figure 106 – Examples of segmented diamond cutting wheel constructions
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496 8.14.2 b) Addition:
497 101) Information on the proper use of blotters, if they are provided with a bonded reinforced
498 wheel;
499 102) Information about the specific flanges to be used with all accessories in accordance
500 with 8.14.2 a) 101). Instruction on the mounting of accessories and the use of the
501 correct flanges and screw(s) or a non-reusable plate mount or other non-threaded
502 mounting affixed to the wheel in accordance with 19.103, as applicable;
503 103) Instruction for the mounting and securing of the wheel guard identifying allowable
504 adjustments to ensure maximum protection of the operator;
505 104) Instruction to the operator on the use of all the different types of wheels specified in the
506 instructions in accordance with 8.14.2 a) 101), e.g. bonded reinforced wheel or
507 diamond cutting wheel;
508 105) Instruction on proper support for the workpiece;
509 106) If a guide roller or guide plate is removable or adjustable, instructions on its use and
510 settings.
511 8.14.2 c) Addition:
512 101) Instruction on storage and handling of specified accessories.
513 9 Protection against access to live parts
514 IEC 62841-1:2014, Clause 9 is applicable.
515 10 Starting
516 IEC 62841-1:2014, Clause 10 is applicable.
517 11 Input and current
518 IEC 62841-1:2014, Clause 11 is applicable.
519 12 Heating
520 IEC 62841-1:2014, Clause 12 is applicable.
521 13 Resistance to heat and fire
522 IEC 62841-1:2014, Clause 13 is applicable.
523 14 Moisture resistance
524 IEC 62841-1:2014, Clause 14 is applicable, except as follows:
525 14.3 Replacement:
526 Liquid systems or spillage of liquid shall not subject the user to an increased risk of electrical
527 shock.
oSIST prEN IEC 62841-2-22:2024
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528 If the tool is rated at least IPX4 in accordance with IEC 62841-1:2014, 14.2, this requirement is
529 deemed to be fulfilled.
530 Compliance is checked by the following test.
531 The residual current device, if any, shall be disabled during the test. Electrical components,
532 covers and other parts which can be removed without the aid of a tool are removed, except
533 those fulfilling the test of IEC 62841-1:2014, 21.22.
534 The tool is prepared with approximately 1,0 % NaCl solution in the following modes if applicable:
535 – as described in 8.14.2;
536 – the liquid container of the tool is completely filled, and a further quantity, equal to 15 % of
537 the capacity of the container, or 0,25 l, whichever is the greater, is poured in steadily over
+0
538 a period of 60 s, while the tool is resting in its filling position in accordance with
−10
539 IEC 62841-1:2014, 8.14.2 d);
540 – a detachable liquid container is filled completely and mounted and dismounted 10 times on
541 the tool.
542 In each applicable preparation, the tool is operated at rated voltage in each position consistent
543 with the instructions according to 8.14.2 b) for 1 min while monitoring the l
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