IEC 60745-2-3:2006+AMD1:2010 CSV

Hand-held motor-operated electric tools - Safety - Part 2-3: Particular requirements for grinders, polishers and disk-type sanders

IEC 60745-2-3:2006+A1:2010 Applies to grinders, with a rated speed not exceeding a peripheral speed of the accessory of 80 m/s at rated capacity, polishers and disk-type sanders, including angle, straight and vertical with a rated capacity not exceeding 230 mm. Does not apply to random-orbit polishers and random-orbit sanders. These are covered by IEC 60745-2-4. This consolidated version consists of the second edition (2006) and its amendment 1 (2010). Therefore, no need to order amendment in addition to this publication.

Outils électroportatifs à moteur - Sécurité - Partie 2-3: Règles particulières pour les meuleuses, lustreuses et ponceuses du type à disque

La CEI 60745-2-3:2006+A1:2010 S'applique aux meuleuses dont la vitesse assignée ne dépasse pas une vitesse périphérique de l'accessoire de 80 m/s à la capacité assignée, aux lustreuses et aux ponceuses du type à disque, y compris d'angle, droites et verticales dont la capacité assignée ne dépasse pas 230 mm. Cette norme ne s'applique pas aux lustreuses à orbite aléatoire et aux ponceuses à orbite aléatoire. Ces dernières sont couvertes par la CEI 60745-2-4.  Cette version consolidée comprend la deuxième édition (2006) et son amendement 1 (2010). Il n'est donc pas nécessaire de commander l'amendement avec cette publication.

General Information

• Status: Published
• Publication Date: 24-Feb-2011
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 25.140.20 - Electric tools
• Technical Committee: TC 116 - Safety of motor-operated electric tools
• Current Stage: PPUB - Publication issued
• Start Date: 25-Feb-2011
• Completion Date: 25-Feb-2011

Standards Content (Sample)

IEC 60745-2-3
®

Edition 2.1 2011-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Hand-held motor-operated electric tools – Safety –
Part 2-3: Particular requirements for grinders, polishers and disk-type sanders

Outils électroportatifs à moteur – Sécurité –
Partie 2-3: Règles particulières pour les meuleuses, lustreuses et ponceuses du
type à disque
IEC 60745-2-3:2006+A1:2010

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---------------------- Page: 2 ----------------------
IEC 60745-2-3
®
Edition 2.1 2011-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Hand-held motor-operated electric tools – Safety –
Part 2-3: Particular requirements for grinders, polishers and disk-type sanders

Outils électroportatifs moteur – Sécurité –
Partie 2-3: Règles particulières pour les meuleuses, lustreuses et ponceuses du
type à disque

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CP
CODE PRIX
ICS 25.140.20 ISBN 978-2-88912-286-8
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 3 ----------------------
– 2 – 60745-2-3  IEC:2006+A1:2010
CONTENTS
FOREWORD . 4

1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 General requirements . 10
5 General conditions for the tests . 10
6 Void. 10
7 Classification . 10
8 Marking and instructions . 10
9 Protection against access to live parts . 15
10 Starting . 16
11 Input and current . 16
12 Heating . 16
13 Leakage current . 16
14 Moisture resistance . 16
15 Electric strength . 16
16 Overload protection of transformers and associated circuits . 16
17 Endurance . 16
18 Abnormal operation . 16
19 Mechanical hazards . 17
20 Mechanical strength . 23
21 Construction . 26
22 Internal wiring . 26
23 Components . 26
24 Supply connection and external flexible cords . 26
25 Terminals for external conductors . 27
26 Provision for earthing . 27
27 Screws and connections . 27
28 Creepage distances, clearances and distances through insulation . 27
29 Resistance to heat, fire and tracking . 27
30 Resistance to rusting . 27
31 Radiation, toxicity and similar hazards . 27

Annexes . 39
Annex K (normative) Battery tools and battery packs . 39
Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources. 39
Annex AA (informative) Material and thickness of guards . 40

Bibliography . 41

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60745-2-3  IEC:2006+A1:2010 – 3 –

Figure 101 – Typical guard designs a) and b) for wheel Types 1, 41 and 42 . 28
Figure 102 – Typical guard design with front lip for wheel Types 27, 28 and 29 . 30
Figure 103 – Adjustable guard for cup wheel Types 6 and 11 . 31
Figure 104 – Principal dimensions of flanges . 32
Figure 105 – Dimensions of an adaptor backing flange . 55
Figure 106 – Guard strength test: explanation of guard positions . 34
Figure 107 – Guard strength test: preparation of the grinder . 35
Figure 108 – Guard strength test: preparation of cup wheel Types 6 and 11 . 35
Figure 109 – Guard strength test: straight grinder with additional masses . 36
Figure 110 – Guard strength test box . 38

Table 101 – Torques for testing flanges . 22
Table 102 – Typical pre-cut length ranges for standard wheel dimensions . 24

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– 4 – 60745-2-3  IEC:2006+A1:2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –

Part 2-3: Particular requirements for grinders,
polishers and disk-type sanders



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
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indispensable for the correct application of this publication.
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

This consolidated version of IEC 60745-2-3 consists of the second edition (2006)
[documents 61F/624/FDIS and 61F/634/RVD] and its amendment 1 (2010) [documents
116/53/FDIS and 116/56/RVD]. It bears the edition number 2.1.
The technical content is therefore identical to the base edition and its amendment and
has been prepared for user convenience. A vertical line in the margin shows where the
base publication has been modified by amendment 1. Additions and deletions are
displayed in red, with deletions being struck through.

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60745-2-3  IEC:2006+A1:2010 – 5 –
International Standard IEC 60745-2-3 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.
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 60745-1, Hand-held
motor-operated electric tools – Safety – Part 1: General requirements, and its amendments. It
was established on the basis of the third edition (2001) of that standard.
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 for grinders, polishers and disk-type
sanders.
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.
IEC 60745 consists of the following parts, under the general title Hand-held motor-operated
electric tools – Safety:
Part 1: General requirements
Part 2-1: Particular requirements for drills and impact drills
Part 2-2: Particular requirements for screwdrivers and impact wrenches
Part 2-3: Particular requirements for grinders, polishers and disk-type sanders
Part 2-4: Particular requirements for sanders and polishers other than disk type
Part 2-5: Particular requirements for circular saws and circular knives
Part 2-6: Particular requirements for hammers
Part 2-7: Particular requirements for spray guns for non-flammable liquids
Part 2-8: Particular requirements for shears and nibblers
Part 2-9: Particular requirements for tappers
Part 2-11: Particular requirements for reciprocating saws (jig and sabre saws)
Part 2-12: Particular requirements for concrete vibrators
Part 2-13: Particular requirements for chain saws
Part 2-14: Particular requirements for planers
Part 2-15: Particular requirements for hedge trimmers and grass shears
Part 2-16: Particular requirements for tackers
Part 2-17: Particular requirements for routers and trimmers
Part 2-18: Particular requirements for strapping tools

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– 6 – 60745-2-3  IEC:2006+A1:2010
Part 2-19: Particular requirements for jointers
Part 2-20: Particular requirements for band saws
Part 2-21: Particular requirements for drain cleaners
The amendment modifies the present part 2-3 to ensure its conformity with the fourth edition
(2006) of IEC 60745-1, Hand-held motor-operated electric tools – Safety – Part 1: General
requirements.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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

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60745-2-3  IEC:2006+A1:2010 – 7 –
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –

Part 2-3: Particular requirements for grinders,
polishers and disk-type sanders



1 Scope
This clause of Part 1 is applicable, except as follows:
1.1 Addition:
This standard applies to grinders, with a rated speed not exceeding a peripheral speed of the
accessory of 80 m/s at rated capacity, polishers and disk-type sanders, including angle,
straight and vertical. This standard applies to tools with a rated capacity not exceeding
230 mm.
This standard does not apply to random-orbit polishers and random-orbit sanders. These are
covered by IEC 60745-2-4.
This clause of Part 1 is applicable, except as follows:
Addition:
This standard applies to grinders, polishers and disk-type sanders, including angle, straight
and vertical tools, with a rated capacity not exceeding 230 mm. For grinders, the rated speed
does not exceed a peripheral speed of the accessory of 80 m/s at rated capacity.
This standard does not apply to dedicated cut-off machines which are covered by
IEC 60745-2-22.
This standard does not apply to random-orbit polishers and random-orbit sanders which are
covered by IEC 60745-2-4.
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
ISO 603-12:1999, Bonded abrasive products – Dimensions – Part 12: Grinding wheels for
deburring and fettling on a straight grinder
ISO 603-14:1999, Bonded abrasive products – Dimensions – Part 14: Grinding wheels for
deburring and fettling/snagging on an angle grinder
ISO 603-16:1999, Bonded abrasive products – Dimensions – Part 16: Grinding wheels for
cutting-off on hand held power tools
ANSI B7.1:2000, Safety Requirements for the Use, Care and Protection of Abrasive Wheels

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– 8 – 60745-2-3  IEC:2006+A1:2010
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
3.102
disk-type sander
tool, constructed like a grinder, intended for sanding
3.102.1
angle disk-type sander
tool with the rotating spindle at a right angle to the motor shaft, intended for lateral sanding
3.102.2
straight disk-type sander
tool with the rotating spindle in-line with the motor shaft, intended for peripheral or lateral
sanding
3.102.3
vertical disk-type sander
tool with the rotating spindle in-line with the motor shaft, intended for lateral sanding
3.103
flange
collar, disc or plate between or against which wheels are mounted
3.103.1
unrecessed flange
flange fixed to the machine spindle having an unrecessed flat surface against which a
threaded hole abrasive product is screwed, e.g. a cup wheel, a cone or a plug
3.103.2
recessed flange
flange fixed to the machine spindle having a recessed flat surface
3.103.3
flange outside diameter
outside diameter of the contact surface of a flange
3.103.4
backing flange
contacts and provides support to the back side of the wheel and is located on the spindle
between wheel and tool
3.103.5
locking flange
supports the front side of the wheel and secures and clamps the wheel to the spindle and the
backing flange
3.104
grinder
tool driving a rotating spindle on which a bonded abrasive product is mounted

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60745-2-3  IEC:2006+A1:2010 – 9 –
3.104.1
angle grinder
tool with the rotating spindle at a right angle to the motor shaft, intended for peripheral and
lateral grinding
3.104.2
straight grinder
tool with the rotating spindle in-line with the motor shaft, either equipped with an abrasive
wheel intended for peripheral grinding or equipped with a collet or chuck intended for use with
mounted wheels, points or burrs
3.104.3
vertical grinder
tool with the rotating spindle in-line with the motor shaft, intended for lateral grinding
3.105
mounted wheels
various shapes and sizes that may be either organic or inorganic bonded abrasives and are
mounted on a mandrel or threaded onto a mandrel
3.106
polisher
tool equipped with a rotating disk or pad intended for polishing
3.106.1
angle polisher
tool with the rotating spindle at a right angle to the motor shaft, intended for peripheral and
lateral polishing
3.106.2
straight polisher
tool with the rotating spindle in-line with the motor shaft, intended for peripheral polishing
3.106.3
vertical polisher
tool with the rotating spindle in-line with the motor shaft, intended for lateral polishing
3.107
rated capacity
maximum diameter of the rotating accessory to be fitted on the tool as recommended by the
manufacturer’s instruction
3.108
rated speed
maximum attainable speed, with any recommended accessory installed, at rated voltage or at
the upper limit of the rated voltage range designated by the manufacturer
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
3.109
wheel guard
device which partly encloses the abrasive wheel and gives protection to the operator

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– 10 – 60745-2-3  IEC:2006+A1:2010
3.110
wheel types
wheels for different applications in accordance with ISO 603-12, ISO 603-14, ISO 603-16 or
ANSI B 7.1
3.111
minor fragment
particles less than 1/16 of the mass of the abrasive wheel
4 General requirements
This clause of Part 1 is applicable.
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. Tools designed for operation at more than one
rated speed shall be marked with the rated speed for each of the speed settings in such a
way that it is clear which speed corresponds with each of the settings;
– rated capacity in mm;
– 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;
– tools provided with a threaded spindle shall be marked with spindle thread size;
1
– “ WARNING Always wear eye protection” or the sign M004 of ISO 7010 .
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 the spindle thread size;
– “ WARNING Always wear eye protection” or sign M004 of ISO 7010 or the following
safety sign:
___________
1
The future safety sign M004 is currently in DIS stage as ISO 7010:2003/DAmd6.

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60745-2-3  IEC:2006+A1:2010 – 11 –


The eye protection symbol may be modified by adding other personal protective
equipment such as ear protection, dust mask, etc.
8.6 Addition:
n……………………….rated speed
8.12.1 Addition:
For the following safety instructions specified in 8.12.1.101 to 8.12.1.107, the terms like
grinding/grinder, sanding/sander, wire brushing/wire brush, polishing/polisher or cutting-
off/cut-off tool, are selected as recommended by the manufacturer. These terms in the
warnings and headings must be consistently used or deleted based on the selected
operations. The “and”/“or” conjunctions may be used as appropriate.
If the power tool is recommended only for one of the listed operations, the heading of that
section is to be used for all warnings.
8.12.1 Addition:
For the following safety instructions specified in 8.12.1.101 to 8.12.1.107, terms such as
grinding/grinder, sanding/sander, wire brushing/wire brush, polishing/polisher or cutting-
off/cut-off tool are selected as recommended by the manufacturer. These terms in the
warnings and headings shall be consistently used or deleted based on the selected
operations. The “and”/“or” conjunctions may be used as appropriate.
If the power tool is recommended only for one of the listed operations, the heading of that
section is to be used for all warnings.
8.12.1.101 Safety instructions for all operations
Safety Warnings Common for Grinding, Sanding, Wire Brushing, Polishing or Abrasive
Cutting-Off Operations:
NOTE In the above heading, those operations not applicable may be omitted.
a) This power tool is intended to function as a grinder, sander, wire brush, polisher or
cut-off tool. Read all safety warnings, instructions, illustrations and specifications
provided with this power tool. Failure to follow all instructions listed below may result in
electric shock, fire and/or serious injury.
b) Operations such as grinding, sanding, wire brushing, polishing or cutting-off are
not recommended to be performed with this power tool. Operations for which the
power tool was not designed may create a hazard and cause personal injury.
NOTE List only those operations that were not included in the first warning. If all listed operations are
recommended, then this warning may be omitted but all subsequent warnings must be given without an
exclusion.
Operations such as grinding, sanding, wire brushing, polishing or cutting-off are not
recommended to be performed with this power tool. Operations for which the power
tool was not designed may create a hazard and cause personal injury.
NOTE List only those operations that were not included in the first warning. If all listed operations are
recommended, then this warning may be omitted, but all subsequent warnings are to be given without
exclusion.

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