IEC 60745-2-3:2006

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
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

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latest edition, a corrigenda or an amendment might have been published.
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normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

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Vocabulaire Electrotechnique International en ligne.
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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
– 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

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

– 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
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 da
...

IEC 60745-2-3 ®
Edition 2.2 2012-07
CONSOLIDATED VERSION
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
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les
microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

Useful links:
IEC publications search - www.iec.ch/searchpub Electropedia - www.electropedia.org
The advanced search enables you to find IEC publications The world's leading online dictionary of electronic and
by a variety of criteria (reference number, text, technical electrical terms containing more than 30 000 terms and
committee,…). definitions in English and French, with equivalent terms in
It also gives information on projects, replaced and additional languages. Also known as the International
withdrawn publications. Electrotechnical Vocabulary (IEV) on-line.

IEC Just Published - webstore.iec.ch/justpublished Customer Service Centre - webstore.iec.ch/csc
Stay up to date on all new IEC publications. Just Published If you wish to give us your feedback on this publication
details all new publications released. Available on-line and or need further assistance, please contact the
also once a month by email. Customer Service Centre: csc@iec.ch.

A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.

Liens utiles:
Recherche de publications CEI - www.iec.ch/searchpub Electropedia - www.electropedia.org
La recherche avancée vous permet de trouver des Le premier dictionnaire en ligne au monde de termes
publications CEI en utilisant différents critères (numéro de électroniques et électriques. Il contient plus de 30 000
référence, texte, comité d’études,…). termes et définitions en anglais et en français, ainsi que
Elle donne aussi des informations sur les projets et les les termes équivalents dans les langues additionnelles.
publications remplacées ou retirées. Egalement appelé Vocabulaire Electrotechnique
International (VEI) en ligne.
Just Published CEI - webstore.iec.ch/justpublished
Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications de la CEI.
Just Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur
Disponible en ligne et aussi une fois par mois par email. cette publication ou si vous avez des questions
contactez-nous: csc@iec.ch.
IEC 60745-2-3 ®
Edition 2.2 2012-07
CONSOLIDATED VERSION
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
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.20 ISBN 978-2-8322-0302-6

– 2 – 60745-2-3  IEC:2006+A1:2010
+A2:2012
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 . 16
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 . 17
18 Abnormal operation . 17
19 Mechanical hazards . 17
20 Mechanical strength . 23
21 Construction . 27
22 Internal wiring . 27
23 Components . 27
24 Supply connection and external flexible cords . 27
25 Terminals for external conductors . 28
26 Provision for earthing . 28
27 Screws and connections . 28
28 Creepage distances, clearances and distances through insulation . 28
29 Resistance to heat, fire and tracking . 28
30 Resistance to rusting . 28
31 Radiation, toxicity and similar hazards . 28

Annexes . 40
Annex K (normative) Battery tools and battery packs . 40
Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources. 40
Annex AA (informative) Material and thickness of guards . 41

Bibliography . 42

60745-2-3  IEC:2006+A1:2010 – 3 –
+A2:2012
Figure 101 – Typical guard designs a) and b) for wheel Types 1, 41 and 42 . 29
Figure 102 – Typical guard design with front lip for wheel Types 27, 28 and 29 . 31
Figure 103 – Adjustable guard for cup wheel Types 6 and 11 . 32
Figure 104 – Principal dimensions of flanges . 33
Figure 105 – Dimensions of an adaptor backing flange . 33
Figure 106 – Guard strength test: explanation of guard positions . 35
Figure 107 – Guard strength test: preparation of the grinder . 36
Figure 108 – Guard strength test: preparation of cup wheel Types 6 and 11 . 36
Figure 109 – Guard strength test: straight grinder with additional masses . 37
Figure 110 – Guard strength test box . 39

Table 101 – Torques for testing flanges . 23
Table 102 – Typical pre-cut length ranges for standard wheel dimensions . 25

– 4 – 60745-2-3  IEC:2006+A1:2010
+A2:2012
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
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 IE
...