EN 60745-2-6:2010

SLOVENSKI STANDARD
01-september-2010
1DGRPHãþD
SIST EN 60745-2-6:2003
SIST EN 60745-2-6:2003/A1:2006
SIST EN 60745-2-6:2003/A11:2007
SIST EN 60745-2-6:2003/A12:2010
SIST EN 60745-2-6:2003/A2:2009
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Hand-held motor-operated electric tools - Safety - Part 2-6: Particular requirements for
hammers (IEC 60745-2-6:2003, modified + A1:2006 + A2:2008)
Handgeführte motorbetriebene Elektrowerkzeuge - Sicherheit - Teil 2-6: Besondere
Anforderungen für Hämmer (IEC 60745-2-6:2003, modifiziert + A1:2006 + A2:2008)
Outils électroportatifs à moteur - Sécurité - Partie 2-6: Règles particulières pour les
marteaux (CEI 60745-2-6:2003, modifiée + A1:2006 + A2:2008)
Ta slovenski standard je istoveten z: EN 60745-2-6:2010
ICS:
25.140.20 (OHNWULþQDRURGMD Electric tools
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60745-2-6
NORME EUROPÉENNE
March 2010
EUROPÄISCHE NORM
ICS 25.140.20 Supersedes EN 60745-2-6:2003 + A1:2006 + A2:2009 + A11:2007 + A12:2009

English version
Hand-held motor-operated electric tools -
Safety -
Part 2-6: Particular requirements for hammers
(IEC 60745-2-6:2003, modified + A1:2006 + A2:2008)

Outils électroportatifs à moteur -  Handgeführte motorbetriebene
Sécurité - Elektrowerkzeuge -
Partie 2-6: Règles particulières Sicherheit -
pour les marteaux Teil 2-6: Besondere Anforderungen
(CEI 60745-2-6:2003, modifiée + A1:2006 für Hämmer
+ A2:2008) (IEC 60745-2-6:2003, modifiziert +
A1:2006 + A2:2008)
This European Standard was approved by CENELEC on 2010-02-01. 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

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60745-2-6:2010 E
Foreword
The text of the International Standard IEC 60745-2-6:2003, prepared by SC 61F (transformed into
IEC TC 116, Safety of hand-held motor-operated electric tools) together with the common modifications
prepared by the Technical Committee CENELEC TC 61F (transformed into TC 116), was submitted to the
formal vote and was approved by CENELEC as EN 60745-2-6 on 2003-02-01.
A number of amendments to EN 60745-2-6 have since been voted on and published as amendments A1,
A11, A2 and A12.
A further draft amendment (FprAD) including improvements to the vibration test code was submitted to
the Unique Acceptance Procedure.
The combined texts were approved by CENELEC as a new edition of EN 60745-2-6 on 2010-02-01.
This European Standard supersedes EN 60745-2-6:2003 + A1:2006 + A11:2007 + A2:2009 + A12:2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
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) 2011-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-02-01
This 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 European Standard has been prepared under a mandate given to CEN and CENELEC by the
European Commission and the European Free Trade Association and supports the essential health and
safety requirements of the Machinery Directive 2006/42/EC. See Annex ZZ.
Compliance with the clauses of Part 1 together with this Part 2 provides one means of conforming with
the essential health and safety requirements of the Directive concerned.
CEN/TC 255 is producing standards for non-electric rotary percussive drills (EN 792-5) and non-rotary
percussive power tools (EN 792-4).
Warning: Other requirements and other EC Directives can be applicable to the products falling within
the scope of this standard.
This standard follows the overall requirements of EN ISO 12100-1 and EN ISO 12100-2.
This Part 2-6 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.

- 3 - EN 60745-2-6:2010
Annexes, subclauses, tables and figures which are additional to those in IEC 60745-2-6 are prefixed “Z”.
NOTE In this standard, the following print types are used:
- requirements: in roman type;
- test specifications: in italic type;
- notes: in smaller roman type.
_____________
Endorsement notice
The text of the International Standard IEC 60745-2-6:2003 + A1:2006 + A2:2008 was approved by
CENELEC as a European Standard with agreed common modifications as given below.
COMMON MODIFICATIONS
2 Normative references
Replace the text by:
This clause of Part 1 is applicable, except as follows:
Additional normative references:
ENV 206:1990, Concrete; performance, production, placing and compliance criteria
3 Terms and definitions
Add:
3.Z101
concrete breakers and picks
heavy percussion hammers with a single impact energy greater than 20 J for demolition work and for
breaking up concrete, rock and brickwork
3.Z102
chiselling hammers
light percussion hammers with a single impact energy less than or equal to 20 J for repair and installation
work
6 Void
Replace by:
6 Environmental requirements
This clause of Part 1 is applicable except as follows:
6.1.2.2 Sound power level determination
Modification:
6.1.2.2.101 For concrete breakers and picks, the following applies:

The sound power level shall be measured according to EN ISO 3744, where the acoustic environment,
instrumentation, quantities to be measured, quantities to be determined, and the measurement procedure
are specified.
The sound power level shall be given as A-weighted sound power level in dB reference 1 pW. The
A-weighted sound pressure levels, from which the sound power is to be determined, should be measured
directly, and not calculated from frequency band data. Measurements shall be made in an essentially free
field over a reflecting plane.
The sound power level shall be determined by using a hemispherical measurement surface according to
Figure Z101. The location of the six microphone positions distributed on the surface of the hemisphere of
radius r are listed in the form of Cartesian coordinates in Table Z101.
Table Z101 — Coordinates of the six microphone positions
x/r y/r
Number of Mass of equipment Mass of equipment
microphone < 10 kg
≥ 10 kg
Radius r = 2 m Radius r = 4 m
z z
1 0,7 0,7 0,75 m 1,5 m
2 - 0,7 0,7 0,75 m 1,5 m
3 - 0,7 - 0,7 0,75 m 1,5 m
4 0,7 - 0,7 0,75 m 1,5 m
5 - 0,27 0,65 0,71 r 0,71 r
6 0,27 - 0,65 0,71 r 0,71 r
The A-weighted sound power level, L , shall be calculated, in accordance with EN ISO 3744,
WA
Subclause 8.6, as follows :
S
L = L +10lg( ) , in dB (1)
WA pfA
S
with L determined from
pfA
 
1 ′
0,1L
pA,i
L = 10lg 10  − K − K
pfA 1A 2A
∑
 
i=1
 
where
is the A-weighted surface sound pressure level according to EN ISO 3744
L
pfA
L′
pA,i A-weighted sound pressure level measured at the i-th microphone position, in decibels
K
Background noise correction, A-weighted
1A
K
Environmental correction, A-weighted
2A
S Area of the measurement surface, in m
= 1 m
S
- 5 - EN 60745-2-6:2010
Concrete breakers and picks shall be measured on a reflecting surface of concrete or non-porous
asphalt. For open test sites with a hard, flat ground surface, such as asphalt or concrete, and with no
sound-reflecting objects within a distance from the source equal to three times the greatest distance from
the source centre to the lower measurement points, it is assumed that the environmental correction is
less than or equal to 0,5 dB and therefore negligible.
For the hemispherical measurement surface, the area S of the measurement surface is calculated as
follows:
S = 2π r², in m . (2)
where r is the radius of the hemisphere as given in Table Z101.
6.1.2.2.102 For chiselling hammers, 6.1.2.2 of Part 1 applies.
6.1.2.2.103 For rotary hammers, 6.1.2.2 of Part 1 applies.
6.1.2.4 Installation and mounting conditions of the power tools during noise tests
Modification:
6.1.2.4.101 Concrete breakers and picks are fixed in vertical position to the test equipment described in
6.1.2.5.101.
6.1.2.4.102 Chiselling hammers are held by the operator in vertical position using the test equipment
described in 6.1.2.5.102.
6.1.2.4.103 Rotary hammers are held by the operator for drilling vertically down in accordance with
6.1.2.5.103.
6.1.2.5 Operating conditions
Modification:
6.1.2.5.101 Concrete breakers and picks
The hammer shall be coupled during the test run to a tool embedded in a cube-shaped concrete block
placed in a concrete pit, sunk into the ground.
The block shall be in the shape of a cube 0,60 m ± 2 mm long at the edge and as regular as possible; it
shall be made of reinforced concrete and thoroughly vibrated in layers of up to 0,20 m to avoid excessive
sedimentation.
The quality of the concrete shall correspond to C 50/60 of ENV 206.
The cube shall be reinforced by 8 mm-diameter steel rods without ties, each rod being independent of the
other; the design concept is illustrated in Figure Z102.
The support tool shall be sealed into the block and shall consist of a rammer of no less than 178 mm or
no more than 220 mm diameter and a tool chuck component identical to that normally used with the
appliance being tested. Its upper end protruding above the screening slab shall be sufficiently long to
enable the practical test to be carried out, but, as indicated in Figure Z103, it shall not exceed 100 mm.
Suitable treatment shall be carried out to integrate the two components. The tool shall be fixed in the
block so that the bottom of the rammer is 0,30 m from the upper face of the block (see Figure Z102).

The block shall remain mechanically sound, particularly at the point where the support tool and the
concrete meet. Before and after each test, it shall be established that the tool sealed in the concrete block
is integrated with it.
The cube shall be set in a pit cemented throughout, covered by a screening slab of at least 100 kg/m², as
indicated in Figure Z103, so that the upper surface of the screening slab is flush with the ground. To avoid
any parasitic noise, the block shall be insulated against the bottom and the sides of the pit by elastic
blocks, the cut-off frequency of which shall not be more than half the striking rate of the appliance tested,
expressed as strokes per second.
The opening in the screening slab through which the tool chuck component passes shall be as small as
possible and sealed by a flexible sound-proof joint.
All speed setting devices shall be adjusted to the highest value.
The hammer is tested under load, connected to the support tool. The feed force applied to the hammer by
an appropriate fixture in addition to its weight shall be just sufficient to ensure stable operation.
6.1.2.5.102 Chiselling hammers
All speed setting devices shall be adjusted to the highest value.
Chiselling hammers shall be tested under load applying the loading device shown in Figure Z104, which
is mounted on a concrete block having the minimum dimensions specified in Table Z104.
The loading device shown in Figure Z104, which is made of steel, consists of a tube filled with hardened
steel balls (ball bearings) on which a specially constructed test tool bit impacts. The parts of the fixture
apart from the test tool shall be rigidly clamped to prevent additional vibration. The test tool bit rebound
shall be restrained by means of a spring exerting just sufficient force to prevent “chattering”.
In order to minimise the noise from the loading device, the loading device shall be enclosed in an
acoustically insulating box, see Figure Z105, which shall have an insulation effect of at least 10 dB in
each octave band of interest. The upper end of the test tool protruding above the acoustically insulating
box shall be sufficiently long to enable the practical test to be carried out, but, as indicated in Figure Z105,
it shall not exceed 100 mm.
When using the loading device shown in Figure Z104, the force to be applied to the tool in addition to its
weight shall be just sufficient to ensure stable operation.
6.1.2.5.103 Rotary hammers
For hammers wit
...