SIST EN 60745-2-22:2011

SLOVENSKI STANDARD
SIST EN 60745-2-22:2011
01-september-2011
(OHNWULþQDURþQDRURGMD9DUQRVWGHO3RVHEQH]DKWHYH]DUH]DOQLNH
Hand-held motor-operated electric tools - Safety - Part 2-22: Particular requirements for
cut-off machines
Handgeführte motorbetriebene Elektrowerkzeuge - Sicherheit - Teil 2-22: Besondere
Anforderungen für Trennschleifmaschinen
Outils électroportatifs à moteur - Sécurité - Partie 2-22: Règles particulières pour les
tronçonneuses à disques
Ta slovenski standard je istoveten z: EN 60745-2-22:2011
ICS:
25.100.01 Rezalna orodja na splošno Cutting tools in general
25.140.20 (OHNWULþQDRURGMD Electric tools
SIST EN 60745-2-22:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 60745-2-22:2011

---------------------- Page: 2 ----------------------

SIST EN 60745-2-22:2011

EUROPEAN STANDARD
EN 60745-2-22

NORME EUROPÉENNE
June 2011
EUROPÄISCHE NORM

ICS 25.140.20


English version


Hand-held motor-operated electric tools -
Safety -
Part 2-22: Particular requirements for cut-off machines
(IEC 60745-2-22:2011, modified)


Outils électroportatifs à moteur -  Handgeführte motorbetriebene
Sécurité - Elektrowerkzeuge -
Partie 2-22: Règles particulières pour les Sicherheit -
tronçonneuses à disques Teil 2-22: Besondere Anforderungen für
(CEI 60745-2-22:2011, modifiée) Trennschleifmaschinen
(IEC 60745-2-22:2011, modifiziert)




This European Standard was approved by CENELEC on 2011-04-18. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia,
Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60745-2-22:2011 E

---------------------- Page: 3 ----------------------

SIST EN 60745-2-22:2011
EN 60745-2-22:2011 - 2 -
Foreword
The text of document 116/57/FDIS, future edition 1 of IEC 60745-2-22, prepared by IEC TC 116, Safety of
hand-held motor-operated electric tools, was submitted to the IEC-CENELEC parallel vote.
A draft amendment, prepared by the Technical Committee CENELEC TC 116, Safety of motor-operated
electric tools, was submitted to the formal vote.
The combined texts were approved by CENELEC as EN 60745-2-22 on 2011-04-18.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2012-04-18
– latest date by which the national standards conflicting
(dow) 2014-04-18
with the EN have to be withdrawn
This European Standard is divided into two parts
Part 1: General requirements which are common to most hand-held electric motor operated tools (for the
purpose of this standard referred to simply as tools) which could come within the scope of this
standard;
Part 2: Requirements for particular types of tools which either supplement or modify the requirements
given in Part 1 to account for the particular hazards and characteristics of these specific tools.
This draft European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of EC Directive
2006/42/EC. See Annex ZZ.
Compliance with the clauses of Part 1 together with this Part 2-22 provides one means of conforming with
the essential health and safety requirements of the Directive concerned.
Warning: Other requirements and other EC Directives can be applicable to the products falling within
the scope of this standard.
This European Standard follows the overall requirements of EN ISO 12100-1 and EN ISO 12100-2.
This Part 2-22 is to be used in conjunction with EN 60745-1:2009. When this standard states "addition",
"modification" or "replacement", the relevant text in Part 1 is to be adapted accordingly.
Subclauses and figures which are additional to those in Part 1 are numbered starting from 101; additional
annexes are lettered AA, BB, etc.
Subclauses, tables and figures which are additional to those in IEC 60745-2-22 are prefixed “Z”.
Annexes ZA and ZZ have been added by CENELEC.
NOTE In this standard, the following print types are used:
- Requirements: in roman type;
- Test specification: in italic type;
- Notes: in smaller roman type.

---------------------- Page: 4 ----------------------

SIST EN 60745-2-22:2011
- 3 - EN 60745-2-22:2011
Endorsement notice
The text of the International Standard IEC 60745-2-22:2011 was approved by CENELEC as a European
Standard with agreed common modifications as given below.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60745-2-3 NOTE  Harmonized as EN 60745-2-3.
IEC 60745-2-5 NOTE  Harmonized as EN 60745-2-5.
COMMON MODIFICATIONS
2 Normative references
Add the following normative reference:
EN 1339:2003, Concrete paving flags - Requirements and test methods
6 Void
Replace by:
6 Environmental requirements
This clause of Part 1 is applicable except as follows:
6.1.2.4 Modification:
Cut-off machines are held and used as specified in 6.1.2.5 and described in Table Z101. The concrete
block, its support and the tool shall be so oriented that the geometric centre of the tool is 1 m above the
reflecting plane (dimension “y” in Figure Z102). The centre of the concrete block shall be located under
the top microphone.
6.1.2.5 Modification:
Cut-off machines are tested under load observing the conditions shown in Table Z101.

---------------------- Page: 5 ----------------------

SIST EN 60745-2-22:2011
EN 60745-2-22:2011 - 4 -
Table Z101 — Operating conditions for cut-off machines
Material and set up Concrete slab with minimum dimensions of 400 mm x 600 mm and a thickness of
(50 ± 5) mm according to EN 1339. The concrete slab shall be stored under dry
conditions for at least 28 days and have the following specifications in accordance
with the following clauses of EN 1339:
Class 3 (5.3.3.2), Class 4 (5.3.4.2), Class 70 (5.3.6.2).
The concrete slab is rigidly fixed on a supporting concrete block with the minimum
dimensions of 800 mm x 500 mm x 200 mm e.g. by means of clamps.
At the beginning of the test the end of the concrete slab shall project 200 mm from
the concrete block and shall be readjusted at least after each series of tests.
Unless the machine is intended for operation with water supply, the dust shall be
collected during operation using a vacuum system. This shall be in place and fitted
correctly. The hose for dust extraction shall be connected and have adequate length
to eliminate the influence of the noise and vibration from the vacuum system on the
tool measurements.
See Figures Z102 and Z103.
Orientation Cutting the concrete slab across the 400 mm width with the entire surface of the
guide plate or all guide rollers being in contact with the concrete slab.
The cut shall not be less than 20 mm from the edge of the slab.
Tool bit/settings New wheel(s) as specified for cutting concrete. If the tool is intended to be used with
more than one wheel, then maximum number of wheels shall be fitted and set to the
maximum width of cut.
Speed setting devices, if any, shall be adjusted to the setting specified for cutting-off
concrete.
The depth gauge, if any, shall be adjusted to a cutting depth equal to the thickness
of the slab(s) plus 40 mm.
If no depth gauge is provided, the cut shall be made with a cutting depth of the
slab(s) plus approximately 10 mm to 40 mm.
If the maximum cutting depth of the cut-off machine is less than the values above,
the test is conducted at maximum cutting depth.
Feed force The forces applied to the tool shall be sufficient to obtain rated input/current ± 10 %
during cutting, applying approximately equal forces to both handles.
If either the input/current above cannot be achieved or the test cycle is less than 5 s,
the test shall be conducted on two slabs stacked together.
Excessive grip forces shall be avoided.
Test cycle One cut across the 400 mm width of the concrete slab.
Measurement starts when the wheel enters the concrete slab and finishes when the
wheel leaves the slab.

---------------------- Page: 6 ----------------------

SIST EN 60745-2-22:2011
- 5 - EN 60745-2-22:2011
6.2 Vibration
6.2.4.2 Location of the measurement
Addition:
Figure Z101 shows the positions on the handles of different types of cut-off machines.
6.2.6.3 Operating conditions
Modification:
Cut-off machines intended to cut materials such as concrete, brick and masonry are tested under load
observing the conditions shown in Table Z101. The top of the slab shall have a distance to the ground of
maximum 450 mm (dimension “x” in Figure Z102).
6.2.7.2 Declaration of the vibration emission value
Addition:
The vibration emission value a of the handle with the highest emission and the uncertainty K shall be
h
declared.
8 Marking and instructions
8.12.2 a) Add the following items:
Z101) Instruction on the correct use of the dust collection system unless the machine is intended for
operation with a liquid system
Z102) Instruction to wear a dust mask unless the machine is intended for operation with a liquid system
Z103) Instruction to always wear hearing protection
21 Construction
Add the following new subclause:
21.Z1 Addition:
Cut-off machines not intended to be operated with a liquid system are considered to be tools where a
considerable amount of dust is produced.

---------------------- Page: 7 ----------------------

SIST EN 60745-2-22:2011
EN 60745-2-22:2011 - 6 -
Add the following new figures:


Figure Z101 - Positions of transducers for various kinds of cut-off-machines

---------------------- Page: 8 ----------------------

SIST EN 60745-2-22:2011
- 7 - EN 60745-2-22:2011
Dimensions in mm

Key
1 cut-off machine
2 workpiece (concrete slab)
3 hose for dust extraction
4 supporting concrete block
Figure Z102 - Test set up (side view)
Dimensions in mm

Key
1 supporting concrete block
2 workpiece (concrete slab)
3 cut-off machine
4 line of cut
Figure Z103 - Test set up (top view)

---------------------- Page: 9 ----------------------

SIST EN 60745-2-22:2011
EN 60745-2-22:2011 - 8 -
Add the following annexes.
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

Addition:

Publication Year Title EN/HD Year

EN 1339 2003 Concrete paving flags - - -
Requirements and test methods


ISO 603-15 1999 Bonded abrasive products - Dimensions - - -
Part 15: Grinding wheels for cutting-off on
stationary or mobile cutting-off machines


ISO 603-16 1999 Bonded abrasive produtcs - Dimensions - - -
Part 16: Grinding wheels for cutting-off on
hand held power tools

---------------------- Page: 10 ----------------------

SIST EN 60745-2-22:2011
- 9 - EN 60745-2-22:2011
Annex ZZ
(informative)

Coverage of Essential Requirements of EC Directives
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers all
relevant essential requirements as given in EC Directive 2006/42/EC (Machinery Directive).
Compliance with this standard provides one means of conformity with the specified essential requirements
of the Directives concerned.
WARNING: Other requirements and other EC Directives may be applicable to the products falling within
the scope of this standard.

---------------------- Page: 11 ----------------------

SIST EN 60745-2-22:2011

---------------------- Page: 12 ----------------------

SIST EN 60745-2-22:2011
IEC 60745-2-22
®

Edition 1.0 2011-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Hand-held motor-operated electric tools – Safety –
Part 2-22: Particular requirements for cut-off machines

Outils électroportatifs à moteur – Sécurité –
Partie 2-22: Règles particulières pour les tronçonneuses à disques


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX T
ICS 25.140.20 ISBN 978-2-88912-394-0

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 13 ----------------------

SIST EN 60745-2-22:2011
– 2 – 60745-2-22 © IEC:2011
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 7
5 General conditions for the tests . 8
6 Void. 8
7 Classification . 8
8 Marking and instructions . 8
9 Protection against access to live parts . 11
10 Starting . 11
11 Input and current . 11
12 Heating . 11
13 Leakage current . 12
14 Moisture resistance . 12
15 Electric strength . 12
16 Overload protection of transformers and associated circuits . 12
17 Endurance . 12
18 Abnormal operation . 12
19 Mechanical hazards . 12
20 Mechanical strength . 16
21 Construction . 18
22 Internal wiring . 18
23 Components . 19
24 Supply connection and external flexible cords . 19
25 Terminals for external conductors . 19
26 Provision for earthing . 19
27 Screws and connections . 19
28 Creepage distances, clearances and distances through insulation . 19
29 Resistance to heat, fire and tracking . 19
30 Resistance to rusting . 19
31 Radiation, toxicity and similar hazards . 19
Annexes . 24
Annex K (normative) Battery tools and battery packs . 24
Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources. 24
Bibliography . 25


Figure 101 – Examples of gaps and rake angles . 20
Figure 102 – Typical guard designs . 21
Figure 103 – Principal dimensions of flanges . 22
Figure 104 – Guard strength test: explanation of guard positions . 22

---------------------- Page: 14 ----------------------

SIST EN 60745-2-22:2011
60745-2-22 © IEC:2011 – 3 –
Figure 105 – Guard strength test: preparation of the cut-off machine . 23
Figure 106 – Guard strength test box . 23

Table 101 – Torques for testing flanges . 15
Table 102 – Guard thickness for diamond wheels . 16

---------------------- Page: 15 ----------------------

SIST EN 60745-2-22:2011
– 4 – 60745-2-22 © IEC:2011
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –

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

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This part of International Standard IEC 60745 has been prepared by IEC technical committee
116: Safety of motor-operated electric tools.
The text of this standard is based on the following documents:
FDIS Report on voting
116/57/FDIS 116/62/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2 is to be used in conjunction with the fourth edition of IEC 60745-1 (2006): Hand-
held motor-operated electric tools – Safety – Part 1: General requirements, and its
amendments.

---------------------- Page: 16 ----------------------

SIST EN 60745-2-22:2011
60745-2-22 © IEC:2011 – 5 –
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60745-1.
This part 2 supplements or modifies the corresponding clauses of IEC 60745-1, so as to
convert that publication into the IEC standard: Safety requirements for electric cut-off
machines.
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;
– additional annexes are lettered AA, BB, etc.
NOTE 3 in this standard, the following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in smaller 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.
Subclauses, tables and figures which are additional to those in Part 1 are numbered starting from 101; additional
annexes are lettered AA, BB, etc.
A list of all the parts in the IEC 60745 series, published under the general title Hand-held
motor-operated electric tools – Safety, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

---------------------- Page: 17 ----------------------

SIST EN 60745-2-22:2011
– 6 – 60745-2-22 © IEC:2011
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –

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



1 Scope
This clause of Part 1 is applicable as follows:
Addition:
This standard applies to cut-off machines fitted with
– one bonded reinforced wheel of Type 41 or Type 42, or
– one or more diamond cut-off wheels with the peripheral gaps, if any, not exceeding
10 mm
and with
– a rated speed not exceeding a peripheral speed of the wheel of 100 m/s at rated
capacity and
– a rated wheel capacity range of 55 mm to 410 mm.
These machines are intended to cut materials such as metals, concrete, masonry, glass and
tile.
This standard does not apply to:
– grinders, sanders, or polishers, even if they can be converted to a cut-off machine, which
are covered by IEC 60745-2-3;
– circular saws which are covered by IEC 60745-2-5.
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
ISO 603-15:1999, Bonded abrasive products – Dimensions – Part 15: Grinding wheels for
cutting-off on stationary or mobile cutting-off machines
ISO 603-16:1999, Bonded abrasive products – Dimensions – Part 16: Grinding wheels for
cutting-off on hand-held power tools
3 Terms and definitions
This clause of Part 1 is applicable, except as follows:
3.101
blotter
thin piece of an easily compressible material, between the abrasive product and flange

---------------------- Page: 18 ----------------------

SIST EN 60745-2-22:2011
60745-2-22 © IEC:2011 – 7 –
3.102
flange
collar, disc, or plate between or against which wheels are mounted
3.102.1
flange outside diameter
outside diameter of the contact surface of a flange
3.102.2
backing flange
part that contacts and provides support to the back side of the wheel and is located on the
spindle between wheel and tool
3.102.3
locking flange
part that supports the front side of the wheel and secures and clamps the wheel to the spindle
and the backing flange
3.103
cut-off machine
tool driving a rotating spindle, with a guide plate or guide roller or similar means, on which a
bonded reinforced wheel or diamond wheel is mounted and used for peripheral grinding
3.104
rated capacity
maximum intended diameter of the rotating accessory to be fitted on the tool as recommended
by the manufacturer’s instruction
3.105
rated speed
maximum attainable speed as designated by the manufacturer, with any recommended
accessory installed, at rated voltage or at the upper limit of the rated voltage range
3.106
wheel guard
device which partly encloses the wheel and gives protection to the operator
3.107
guide plate
flat plate on the machine which rests on the material to be cut
3.108
guide roller
roller on the machine which rests on the material to be cut
3.109
bonded reinforced wheel
wheels for different applications in accordance with ISO 603-15 and ISO 603-16
3.110
diamond wheel
metal wheels with a continuous or segmented abrasive rim
4 General requirements
This clause of Part 1 is applicable.

---------------------- Page: 19 ----------------------

SIST EN 60745-2-22:2011
– 8 – 60745-2-22 © IEC:2011
5 General conditions for the tests
This clause of Part 1 is applicable.
6 Void
7 Classification
This clause of Part 1 is applicable.
8 Marking and instructions
This clause of Part 1 is applicable, except as follows:
8.1 Addition:
Tools shall also be marked with:
• rated speed in revolutions per minute;
• rated capacity in mm;
• tools provided with a threaded spindle shall be marked with spindle thread size;
• “ WARNING Always wear eye protection” or the sign M004 of ISO 7010 or the following
safety sign:


The eye protection symbol may be modified by adding other personal protective
equipment such as ear protection, dust mask, etc.
8.101 Tools shall also be marked with an indication of direction of rotation of the spindle.
This shall be indicated by an arrow, raised or sunk, or by any other means no less visible and
indelible.
8.6 Addition:
n . rated speed
8.12.1.1 Addition:
8.12.1.1.101 Safety instructions for abrasive cutting-off operations
Cut-off mac
...