IEC 60745-2-6:2003+AMD1:2006+AMD2:2008 CSV

Hand-held motor-operated electric tools - Safety - Part 2-6: Particular requirements for hammers

Deals with the safety of hand-held motor-operated or magnetically driven tools, specifically hammers.The rated voltage of the hammers is not more than 250 V for single-phase a.c. or d.c., and 440 V for three-phase a.c. tools. Tools covered by this standard include but are not limited to percussion and rotary hammers. This consolidated version consists of the second edition (2003), its amendment 1 (2006) and its amendment 2 (2008). Therefore, no need to order amendments in addition to this publication.

Outils électroportatifs à moteur - Sécurité - Partie 2-6: Règles particulières pour les marteaux

Traite de la sécurité des outils portatifs à moteur ou à entraînement magnétique, spécialement des marteaux. La tension assignée des marteaux n'est pas supérieure à 250 V pour les outils monophasés à courant alternatif ou continu et à 440 V pour les outils triphasés à courant alternatif. Le domaine d'application de la présente norme comprend les marteaux à percussion et les marteaux rotatifs mais n'est pas limité à ces seuls outils.  Cette version consolidée comprend la deuxième édition (2003), son amendement 1 (2006) et son amendement 2 (2008). Il n'est donc pas nécessaire de commander les amendements avec cette publication.

General Information

• Status: Published
• Publication Date: 11-Aug-2008
• 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: 12-Aug-2008
• Completion Date: 12-Aug-2008

Standards Content (Sample)

IEC 60745-2-6
Edition 2.2 2008-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Hand-held motor-operated electric tools – Safety –
Part 2-6: Particular requirements for hammers

Outils électroportatifs à moteur – Sécurité –
Partie 2-6: Règles particulières pour les marteaux
IEC 60745-2-6:2003+A1:2006+A2:2008

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2008 IEC, Geneva, Switzerland

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
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: [e-mail]
Web: 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.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
ƒ IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
ƒ Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
ƒ Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: [e-mail]
Tel.: [phone]
Fax: [phone]


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.
ƒ Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm
Le Catalogue en-ligne de la CEI vous permet d’effectuer des recherches en utilisant différents critères (numéro de référence,
texte, comité d’études,…). Il donne aussi des informations sur les projets et les publications retirées ou remplacées.
ƒ Just Published CEI: www.iec.ch/online_news/justpub
Restez informé sur les nouvelles publications de la CEI. Just Published détaille deux fois par mois les nouvelles
publications parues. Disponible en-ligne et aussi par email.
ƒ Electropedia: www.electropedia.org
Le premier dictionnaire en ligne au monde de termes électroniques et électriques. Il contient plus de 20 000 termes et
définitions en anglais et en français, ainsi que les termes équivalents dans les langues additionnelles. Egalement appelé
Vocabulaire Electrotechnique International en ligne.
ƒ Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm
Si vous désirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du
Service clients ou contactez-nous:
Email: [e-mail]
Tél.: [phone]
Fax: [phone]

---------------------- Page: 2 ----------------------
IEC 60745-2-6
Edition 2.2 2008-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Hand-held motor-operated electric tools – Safety –
Part 2-6: Particular requirements for hammers

Outils électroportatifs à moteur – Sécurité –
Partie 2-6: Règles particulières pour les marteaux

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CF
CODE PRIX
ICS 25.140.20 ISBN 2-8318-9912-5
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 3 ----------------------
– 2 – 60745-2-6 © IEC:2003+A1:2006
+A2:2008
CONTENTS
FOREWORD.4

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


Annexes .15
Annex K (normative) Battery tools and battery packs .15
2
Annex L (normative) Battery tools and battery packs provided with mains connection
or non-isolated sources.15

Bibliography.15

---------------------- Page: 4 ----------------------
60745-2-6 © IEC:2003+A1:2006 – 3 –
+A2:2008

Figure 101 – Single-hand support .12
Figure 102 – Double-hand support.13
Figure 103 – Testing apparatus for hammers .14

---------------------- Page: 5 ----------------------
– 4 – 60745-2-6 © IEC:2003+A1:2006
+A2:2008
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –

Part 2-6: Particular requirements for hammers



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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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.
International Standard IEC 60745-2-6 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 consolidated version of IEC 60745-2-6 consists of the second edition (2003) [documents
61F/463/FDIS and 61F/487/RVD], its amendment 1 (2006) [documents 61F/622/FDIS and
61F/630/RVD] and its amendment 2 (2006) [documents 61F/734/FDIS and 61F/754/RVD].
The technical content is therefore identical to the base edition and its amendments and has
been prepared for user convenience.
It bears the edition number 2.2.
A vertical line in the margin shows where the base publication has been modified by
amendments 1 and 2.
The French version of this standard has not been voted upon.

---------------------- Page: 6 ----------------------
60745-2-6 © IEC:2003+A1:2006 – 5 –
+A2:2008
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2-6 is to be used in conjunction with the third edition of IEC 60745-1: Safety of
hand-held motor-operated electric tools – Part 1: General requirements. When this standard
states “addition”, “modification” or “replacement”, the relevant text in Part 1 is to be adapted
accordingly.
NOTE in this standard, the following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in smaller roman type.
Subclauses, tables and figures which are additional to those in Part 1 are numbered starting from 101; additional
annexes are lettered AA, BB, etc.
2 With amendment 2, this Part 2 is established on the basis of the fourth edition (2006) of
IEC 60745-1, Hand-held motor-operated electric tools – Safety – Part 1: General
requirements.
Main changes include editorial modifications to match with the fourth edition of IEC 60745-1,
addition of a new safety warning to Clause 8: Marking and instructions, and clarifications in
Annex K.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the maintenance result 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: 7 ----------------------
– 6 – 60745-2-6 © IEC:2003+A1:2006
+A2:2008
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –

Part 2-6: Particular requirements for hammers



1 Scope
2 This clause of Part 1 is applicable, except as follows:
Addition:
This standard applies to hammers.
Tools covered by this standard include but are not limited to percussion and rotary hammers.
2 Normative references
This clause of Part 1 is applicable.
2
3 Terms and definitions
This clause of Part 1 is applicable, except as follows:
Additional definitions:
3.101
percussion hammer
tool equipped with a built-in percussion system which is not influenced by the operator
3.102
rotary hammer
tool equipped with a built-in percussion system which is not influenced by the operator and
also has the capability of rotational motion
3.103
rotary hammer with “drill only mode”
rotary hammer able to rotate only with the percussion system disengaged
4 General requirements
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable.

---------------------- Page: 8 ----------------------
60745-2-6 © IEC:2003+A1:2006 – 7 –
+A2:2008
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:
2
8.12.1.1 Addition:
Hammer safety warnings
– Wear ear protectors. Exposure to noise can cause hearing loss.
– Use auxiliary handle(s), if supplied with the tool. Loss of control can cause personal
injury.
– Hold power tool by insulated gripping surfaces, when performing an operation
where the cutting accessory may contact hidden wiring or its own cord. Cutting
accessory contacting a "live" wire may make exposed metal parts of the power tool "live"
and could give the operator an electric shock.
9 Protection against access to live parts
This clause of Part 1 is applicable.
10 Starting
This clause of Part 1 is applicable.
11 Input and current
This clause of Part 1 is applicable.
12 Heating
This clause of Part 1 is applicable, except as follows:
12.4 Replacement:
The tool is operated intermittently until the temperature stabilises or for 30 cycles, whichever
is achieved first, each cycle comprising a period of operation of 30 s and a rest period of 90 s
with the tool switched off. During the periods of operation the tool is loaded by means of a
brake adjusted so as to attain rated input or rated current, the hammer mechanism being
disengaged or removed. At the manufacturer’s option, the tool may also be operated
continuously until thermal stabilisation. The temperature-rise limit specified for the external
enclosure does not apply to the enclosure of the hammer mechanism.
13 Leakage current
This clause of Part 1 is applicable.

---------------------- Page: 9 ----------------------
– 8 – 60745-2-6 © IEC:2003+A1:2006
+A2:2008
14 Moisture resistance
This clause of Part 1 is applicable.
15 Electric strength
This clause of Part 1 is applicable.
16 Overload protection of transformers and associated circuits
This clause of Part 1 is applicable.
17 Endurance
This clause of Part 1 is applicable, except as follows:
17.2 Replacement:
Rotary hammers with “drill only mode” are operated at no-load with the impact mechanism
disengaged for 12 h at a voltage equal to 1,1 times the rated voltage, and then for 12 h at
a voltage equal to 0,9 times rated voltage.
Each cycle of operation comprises an “on” period of 100 s and an “off” period of 20 s, the “off”
periods being included in the specified operating time.
During the test, the tool is placed in three different positions, the operating time, at each
voltage, being approximately 4 h for each position.
NOTE The change of position is made to prevent abnormal accumulation of carbon dust in any particular place.
Examples for the three positions are horizontal, vertically up and vertically down.
All hammers, including hammers with drill only mode, are mounted vertically in a test
apparatus as shown in Figure 103 and are operated at rated voltage or at the mean value of
the rated voltage range, for four periods of 6 h each, the interval between these periods being
at least 30 min.
During these tests, hammers are operated intermittently, each cycle comprising a period of
operation of 30 s and a rest period of 90 s during which the tool remains switched off.
During the tests, an axial force to ensure steady operation of the impact mechanism is applied
to the hammer through a resilient medium.
If the temperature rise of any part of the tool exceeds the temperature rise determined during
the test of 12.1, forced cooling or rest periods are applied, the rest periods being excluded
from the specified operating time.
During these tests, overload protection devices shall not operate.
The tool may be switched on and off by means of a switch other than that incorporated
in the tool.
During these tests, replacement of the carbon brushes is allowed, and the tool is oiled and
greased as in normal use.

---------------------- Page: 10 ----------------------
60745-2-6 © IEC:2003+A1:2006 – 9 –
+A2:2008
If the impact mechanism fails mechanically during the test without causing an accessible part
to become live it may be replaced by a new one.
18 Abnormal operation
This clause of Part 1 is applicable.
19 Mechanical hazards
This clause of Part 1 is applicable, except as follows:
Additional subclauses:
19.101 Chuck keys shall be so designed that they drop easily out of position when released.
This requirement does not exclude the provision of clips for holding the key in place when not
in use; metal clips fixed to the flexible cable or cord are not allowed.
Compliance is checked by inspection and manual test.
The key is inserted in the chuck and, without tightening, the tool is turned such that the key is
facing down. The key shall fall out.
19.102 The force on the hand due to the static stalling torque shall not be excessive.
Compliance is checked by the following test.
Static stalling torque or slip torque of a clutch is measured on the locked output spindle of the
tool in the cold condition (M ).
R
The tool is connected to rated voltage. The mechanical gears are adjusted to the lowest
speed. Electronic regulators are adjusted to their maximum speed setting. The tool switch is
to be in the full “on” position. The mean value of the torque measured shall not exceed the
relevant maximum value (M ) in Figure 101 and Figure 102.
Rmax
20 Mechanical strength
This clause of Part 1 is applicable, except as follows:
2
20.3 Replacement:
Hammers up to 10 kg shall withstand being dropped three times in total on a concrete surface
from a height of 1 m. For these three drops, the sample shall be tested in the three most
unfavourable positions and the lowest point of the tool shall be 1 m above the concrete
surface. For the test, separable accessories are not mounted.
Hammers exceeding 10 kg are subjected to three impacts that result from the tool being
tipped over to strike a concrete surface. The tool is tipped with the longest accessory
recommended by the manufacturer except when the recommended accessory is longer than
1 m. In this case, the tools are tested with a 1 m accessory. The tool is positioned in an
upright position with the tip of the accessory resting on a concrete surface. The tool is then
tipped in three different directions on to the concrete surface.

---------------------- Page: 11 ----------------------
– 10 – 60745-2-6 © IEC:2003+A1:2006
+A2:2008
2
20.5 Replacement:
Hammers are regarded as tools that are likely to cut into concealed wiring or their own cord.
Therefore, handles and grasping surfaces, as specified in the instruction manual, shall have
adequate mechanical strength in order to provide insulation between the grasping area and
the output shaft.
Compliance is checked by the following test:
A separate sample, at the discretion of the manufacturer, is to be subjected to a single impact
on each handle and each recommended grasping surface.
For hammers up to 10 kg, the impacts are carried out from a height of 1 m onto a concrete
surface.
For hammers exceeding 10 kg, the impacts are carried out by tipping the tool over to strike
the concrete surface. The tool is tipped with the longest accessory recommended by the
manufacturer except when the recommended accessory is longer than 1 m. In this case, the
tool is tested with a 1 m accessory.
The impacts are followed by an electric strength test according to Clause 15 using
1 250 V a.c. between the grasping surfaces in contact with foil and the output shaft of the tool.
21 Construction
2 This clause of Part 1 is applicable, except as follows:
21.18 Addition:
Percussion hammers and rotary hammers operating in the percussion mode may have a
switch with a locking arrangement to lock it in the “on” position. For these tools, the switch
shall unlock automatically with a single motion without releasing the grasp on the tool.
Compliance is checked by inspection and by a manual test.
For rotary hammers, a switch lock-on device, if any, shall be located outside the grasping
area or so designed that it is not likely to be unintentionally locked on by the user’s hand
during intended left- or right-handed operation. This grasping area is considered to be the
contact area between either hand and the tool while the index finger of that hand is resting on
the switch actuator of the tool.
Compliance is checked by inspection or by the following test.
For a switch with a lock-on button device within the grasping area, the lock-on device shall
not be actuated by a straight-edged utensil when the utensil is made to pass back and forth
across the device in any direction. The straight edge of the utensil shall be of sufficient length
to bridge the surface of the lock-on device and any surface adjacent to the lock-on device.
22 Internal wiring
This clause of Part 1 is applicable.
23 Components
This clause of Part 1 is applicable.

---------------------- Page: 12 ----------------------
60745-2-6 © IEC:2003+A1:2006 – 11 –
+A2:2008
24 Supply connection and external flexible cords
This clause of Part 1 is applicable, except as follows:
24.4 Modification:
Instead of the first paragraph, the following applies:
Supply cords shall be not lighter than heavy polychloroprene sheathed flexible cable
(60245 IEC 66) or equivalent.
25 Terminals for external conductors
This clause of Part 1 is applicable.
26 Provision for earthing
This clause of Part 1 is applicable.
27 Screws and connections
This clause of Part 1 is applicable.
28 Creepage distances, clearances and distances through insulation
This clause of Part 1 is applicable.
29 Resistance to heat, fire and tracking
This clause of Part 1 is applicable.
30 Resistance to rusting
This clause of Part 1 is applicable.
31 Radiation, toxicity and similar hazards
This clause of Part 1 is applicable.

---------------------- Page: 13 ----------------------
– 12 – 60745-2-6 © IEC:2003+A1:2006
+A2:2008

Figure 101 – Single-hand support

---------------------- Page: 14 ----------------------
60745-2-6 © IEC:2003+A1:2006 – 13 –
+A2:2008

Figure 102 – Double-hand support

---------------------- Page: 15 ----------------------
– 14 – 60745-2-6 © IEC:2003+A1:2006
+A2:2008

2
1
9
3
1
1
4
4
D
a – 0,5
a
5
7
6
12
7
a a
8
2,5 9
15°
9
12
15°
1
1
12
10
11
IEC  1701/05

Key Dimensions in millimetres
1 Synthetic rubber disk or material having similar properties, shore hardness 70° to 80°, thickness 10 mm,
diameter 75 mm.
2 Polyamide-lined yoke, adapted to suit the grip of the tool.
3 Sample.
4 Mechanical or pneumatical springs applying a force to the sample.
5 Punch.
6 Hardened steel ball with diameter 38 mm.
7 Hardened steel transfer plate of mass M and diameter D, grooved on underside as shown in detail.
2
8 Synthetic rubber disk or material having similar properties, shore hardness 70° to 80°, thickness 6 mm to 7 mm
and fitting closely in cavity.
9 Steel base at mass M , with circular cavity having a diameter 1 mm greater than that of the transfer plate.
1
Bottom of cavity grooved, as shown in detail.
10 Concrete block supported by compacted ballast of earth.
11 Steel peg to prevent any horizontal movement.
12 Burnished surface and edge.
If necessary for the steady operation of the impact mechanism, a suitable punch and shank
may be used. The total mass of the punch and the shank shall not exceed that specified in the
following table.

D a M M M
1 2 3
Diameter Distance Mass
Mass of Total mass
Rated input of tool
of transfer between centres of steel
transfer of punch
plate of grooves base
plate and shank
W mm mm kg kg kg
Up to and including 700 100 6,5 90 1,0 0,7
Over 700 up to and including 1 200 140  5,75 180 2,25 1,4
2,3
Over 1 200 up to and including 1 800 180 5,0 270 3,8
Over 1 800 up to and including 2 500 220 4,5 360 6,0 3,4
Figure 103 – Testing apparatus for hammers

---------------------- Page: 16 ----------------------
60745-2-6 © IEC:2003+A1:2006 – 15 –
+A2:2008
Annexes
The annexes of Part 1 are applicable except as follows.

Annex K
(normative)

Battery tools and battery packs

2
K.1 Addition:
All clauses of this Par
...