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SLOVENSKI STANDARD
01-julij-2021
Elektromotorna ročna orodja, prenosna orodja ter stroji za trato in vrt - Varnost - 2-
3. del: Posebne zahteve za ročne brusilnike, diskovne polirnike in diskovne
brusilnike - Dopolnilo A11
Electric motor-operated hand-held tools, transportable tools and lawn and garden
machinery - Safety - Part 2-3: Particular requirements for hand-held grinders, disc-type
polishers and disc-type sanders
Elektrische motorbetriebene handgeführte Werkzeuge, transportable Werkzeuge und
Rasen- und Gartenmaschinen - Sicherheit - Teil 2-3: Besondere Anforderungen für
handgeführte Schleifer, Polierer mit Polierscheibe und Schleifer mit Schleifblatt
Outils électroportatifs à moteur, outils portables et machines pour jardins et pelouses -
Sécurité - Partie 2-3: Exigences particulières pour les meuleuses portatives et pour les
lustreuses et ponceuses portatives du type à disque
Ta slovenski standard je istoveten z: EN IEC 62841-2-3:2021/A11:2021
ICS:
25.080.50 Brusilni in polirni stroji Grinding and polishing
machines
25.140.20 Električna orodja Electric tools
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 62841-2-3:2021/A11
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2021
ICS 25.140.20
English Version
Electric motor-operated hand-held tools, transportable tools and
lawn and garden machinery - Safety - Part 2-3: Particular
requirements for hand-held grinders, disc-type polishers and
disc-type sanders
Outils électroportatifs à moteur, outils portables et machines Elektrische motorbetriebene handgeführte Werkzeuge,
pour jardins et pelouses - Sécurité - Partie 2-3: Exigences transportable Werkzeuge und Rasen- und
particulières pour les meuleuses portatives et pour les Gartenmaschinen - Sicherheit - Teil 2-3: Besondere
lustreuses et ponceuses portatives du type à disque Anforderungen für handgeführte Schleifer, Polierer mit
Polierscheibe und Schleifer mit Schleifblatt
This amendment A11 modifies the European Standard EN IEC 62841-2-3:2021; it was approved by CENELEC on 2021-05-03. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment 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 CEN-CENELEC Management Centre 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62841-2-3:2021/A11:2021 E
European foreword
This document (EN IEC 62841-2-3:2021/A11:2021) has been prepared by CLC/TC 116 “Safety and
environmental aspects of motor-operated electric tools”.
The following dates are fixed:
• latest date by which this document has (dop) 2022-05-03
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2025-05-03
standards conflicting with this document
have to be withdrawn
This document modifies by common modifications EN IEC 62841-2-3:2021, which consists of the text of
116/444/FDIS (future IEC 62841-2-3, Ed 1) prepared by IEC/TC 116 “Safety of motor-operated electric
tools”.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This series is divided into four 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, 3 or 4: 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.
The Part 2-3 is to be used in conjunction with EN 62841-1:2015 and its amendments.
The Part 2-3 supplements or modifies the corresponding clauses in EN 62841-1:2015, so as to convert it
into the European Standard: Particular requirements for hand-held grinders, disc-type polishers and disc-
type sanders.
Where a particular subclause of Part 1 is not mentioned in Part 2-3, that subclause applies as far as
relevant. When this standard states “addition”, “modification” or “replacement”, the relevant text in Part 1 is
to be adapted accordingly.
The following print types are used:
— requirements: in roman type
— test specifications: in italic type
— notes: in smaller roman type.
The terms defined in Clause 3 are printed in bold typeface.
Subclauses, notes, tables and figures which are additional to those in Part 1 are numbered starting
from 101.
Clauses, subclauses, notes, tables, figures and annexes which are additional to those in
IEC 62841-2-3:2020 are prefixed “Z”.
This document follows the overall requirements of EN ISO 12100.
This document has been prepared under a mandate given to CENELEC by the European Commission and
the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
Compliance with the clauses of Part 1 together with Part 2-3 provides one means of conforming with the
essential health and safety requirements of the Directive concerned.
1 Modification to Clause 1, “Scope”
Add the following to the existing Clause 1:
“This document covers all significant hazards, hazardous situations or hazardous events relevant for tools
covered by this standard.
NOTE Z101 Essential requirements not mentioned in Table ZZ.1 are deemed to be not applicable, because the
corresponding hazards are either not relevant for machines covered by this standard or do not require specific action
by the designer.”
2 Modification to Clause 2, “Normative references”
Add the following normative references:
“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”
3 Modification to Clause 8, “Marking and instructions”
Add the following to 8.14.2 Za):
“6) A warning that grinding thin sheets of metal or other easily vibrating structures with a large surface
can result in a total noise emission much higher (up to 15 dB) than the declared noise emission
values. Such workpieces should as far as possible be prevented from emitting sound by suitable
measures such as the application of heavy flexible damping mats. The increased noise emission
is also to be considered for both the risk assessment of noise exposure and selecting adequate
hearing protection.”
4 Modification to Clause 19, “Mechanical hazards”
Replace the existing 19.104.2 with the following:
“19.104.2 The flange diameter for wheel Type 1 that are thicker than 5 mm shall be:
D ≥ 0,33D
f
The flange diameter for wheel Type 1 that are 5 mm and thinner and wheel Types 6, 11, 27, 28, 29, 41
and 42 shall be:
D = (20 ± 1) mm for 55 mm ≤ D < 80 mm
f
for 80 mm ≤ D ≤ 105 mm for wheels with a bore diameter of 10 mm (3/8 inch
D = (20 ± 1) mm
f
UNC)
for 80 mm ≤ D ≤ 105 mm for wheels with a bore diameter of 16 mm (5/8 inch
D = (29 ± 1) mm
f
UNC)
= (41 ± 1) mm for 105 mm < D ≤ 230 mm
D
f
For wheel Type 41 and diamond wheels, the D dimension may exceed the above values for inner
f
flanges and outer flanges. For all other wheel types, the diameter D may exceed the above values for
f
inner flanges only.
For wheel Types 27, 28 and 42: The outer dimensions of the outer flange shall be limited so that there is
no interference with the depressed centre of wheels in accordance with ISO 603-14:1999 and
ISO 603-16:1999 as illustrated in Figure Z101 with the dimensions ØK, R and F as specified in Table Z101.
Table Z101 — Dimensions of depressed centre wheels
Outside diameter of the ØK Radius R F
abrasive wheel D
mm mm mm mm
≤ 80 23 6 4
> 80 and ≤ 100 35,5 6 4
> 100 and ≤ 230 45 8 4,6
Key
1 area without interference
ØK diameter of the depressed centre bottom
R radius
F height of the depressed centre
Figure Z101 — Depressed centre of abrasive wheels
“
5 Modification to Clause 21, “Construction”
Replace the existing subclause 21.35 with the following:
“21.35 Modification:
This subclause is applicable only for
— disc-type sanders used exclusively for sanding wooden floors in accordance with 8.14.2 b) 107); and
— grinders intended to be used with a wheel guard of Type E or Type F in accordance with
8.14.2 a) 101) and 8.14.2 b) 108).”
6 Modifications to Annex I, “Measurement of noise and vibration emissions”
Replace the title of Annex I with the following:
“Annex I
(normative)
Measurement of noise and vibration emissions”
and delete the NOTE.
Replace the first paragraph and NOTE 1 of the existing subclause I.2.3.1 with the following:
“The A-weighted emission sound pressure level at the work station, L , shall be determined in accordance
pA
with EN ISO 11203:2009 as follows:
L = L - Q
pA WA
where Q = 8 dB.”
NOTE 1 This value of Q has been determined, during experimental investigations, to be applicable to hand-held
power tools. The resulting A-weighted emission sound pressure level at the workstation is equivalent to the value of
the surface sound pressure level at a distance of 0,7 m from the power tool. This distance has been chosen to give
satisfactory reproducibility of results, and to permit comparison of the acoustic performance of different hand-held
power tools, which do not, in general, have uniquely defined work stations. Under free field conditions, where it could
be required to estimate the emission sound pressure level, L , at a distance r in m from the geometric centre of
pA,r1 1
the power tool, this can be done by applying the formula:
0,7
L = L + 20 lg dB
()
pA,r1 pA
r
"
Replace the existing subclause I.2.4 with the following:
"I.2.4 Installation and mounting conditions of the power tools during noise tests
Addition:
Angle grinders are suspended and fitted with an artificial wheel equivalent to the rated capacity as
specified in Figure I.104 and Table I.102 for the application “grinding”. Straight grinders are suspended
and fitted with an artificial wheel equivalent to the rated capacity as specified in Figure I.106 and
Table I.105. Disc-type polishers are suspended and fitted with a lambswool polishing pad of rated
capacity. Disc-type sanders are suspended and fitted with a sanding disc of rated capacity. For angle
and vertical tools, the wheel or pad shall be horizontal. For straight tools, the wheel or pad shall be vertical.”
7 Modification to Annex K, “Battery tools and battery packs”
Replace the NOTE 2 in K.21.18.1.1 with the following:
“K.21.18.Z101 Isolation and disabling device
Tools with an integral battery shall either be equipped
— with an isolation device to prevent the risk of injury from mechanical hazards during servicing or user
maintenance; or
— with a disabling device that prevents unintentional starting of the tool.
An isolation device shall
— provide disconnection of at least one pole of the battery from the serviceable region of the tool;
— be equipped with an unambiguous indication of the state of the disconnection device which
corresponds to each position of its manual control (actuator);
— be provided with protection against accidental reconnection.
NOTE 1 Examples of methods to achieve this disconnection include removable jumpers, integral batteries that
can be disconnected for servicing or user maintenance, or an electromechanical power switch with a direct
mechanical link between the actuator and the contact.
NOTE 2 The risk of accidental reconnection for a power switch is addressed by the requirement of 21.18.1.2. The
other examples in NOTE 1 achieve this by the necessary actions for reconnection.
A disabling device may be achieved by any of the following:
— a self-restoring or non-self-restoring lock-off device where two separate and dissimilar actions are
necessary before the motor is switched on (e.g. a power switch which has to be pushed in before it
can be moved laterally to close the contacts to start the motor). It shall not be possible to achieve these
two actions with a single grasping motion or a straight-line motion;
— a removable disabling device provided with the tool where it shall not be possible for the tool to be
operated when either applied or removed.
Compliance is checked by inspection and by manual test.”
8 Modification to Annex L, “Battery tools and battery packs provided with mains
connection or non-isolated sources”
Replace th
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