IEC 62841-2-4:2014

IEC 62841-2-4 ®
Edition 1.1 2025-02
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 2-4: Particular requirements for hand-held sanders and polishers other than
disc type
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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IEC 62841-2-4 ®
Edition 1.1 2025-02
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 2-4: Particular requirements for hand-held sanders and polishers other than
disc type
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.140.20 ISBN 978-2-8327-0288-8
REDLINE VERSION – 2 – IEC 62841-2-4:2014+AMD1:2025 CSV
© IEC 2025
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 7
5 General conditions for the tests . 7
6 Radiation, toxicity and similar hazards . 7
7 Classification . 7
8 Marking and instructions . 7
9 Protection against access to live parts . 8
10 Starting . 8
11 Input and current . 8
12 Heating . 8
13 Resistance to heat and fire . 8
14 Moisture resistance . 8
15 Resistance to rusting . 8
16 Overload protection of transformers and associated circuits . 8
17 Endurance . 8
18 Abnormal operation . 9
19 Mechanical hazards . 9
20 Mechanical strength . 10
21 Construction . 10
22 Internal wiring . 11
23 Components . 11
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 . 12
Annexes . 15
Annex I (informative) Measurement of noise and vibration emissions . 15
Annex K (normative) Battery tools and battery packs . 18
Bibliography . 19

Figure 101 – Rod test for the in-feed nip between the belt and roller . 13
Figure 102 – Steel ball test for the in-feed nip between the belt housing enclosure and
roller . 14
Figure I.101 − Position of transducers for sanders and polishers . 17

© IEC 2025
Table 4 – Required performance levels . 9
Table I.101 − Operating conditions for sanders . 15
Table I.102 − Operating conditions for polishers . 16

REDLINE VERSION – 4 – IEC 62841-2-4:2014+AMD1:2025 CSV
© IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS,
TRANSPORTABLE TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 2-4: Particular requirements for hand-held
sanders and polishers other than disc type

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
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This consolidated version of the official IEC Standard and its amendment has been
prepared for user convenience.
IEC 62841-2-4 edition 1.1 contains the first edition (2014-06) [documents 116/164/FDIS
and 116/178/RVD], its corrigendum (2025-10) and its amendment 1 (2025-02) [documents
116/864/FDIS and 116/880/RVD].
In this Redline version, a vertical line in the margin shows where the technical content
is modified by amendment 1. Additions are in green text, deletions are in strikethrough

© IEC 2025
red text. A separate Final version with all changes accepted is available in this
publication.
International Standard IEC 62841-2-4 has been prepared by IEC technical committee 116:
Safety of motor-operated electric tools.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2-4 is to be used in conjunction with the first edition of IEC 62841-1 (2014).
This Part 2-4 supplements or modifies the corresponding clauses in IEC 62841-1, so as to
convert it into the IEC Standard: Particular requirements for hand-held sanders and polishers
other than disc type.
Where a particular subclause of Part 1 is not mentioned in this Part 2-4, that subclause
applies as far as reasonable. Where 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 small roman type.
–
The terms defined in Clause 3 are printed in bold typeface.
Subclauses, notes and figures which are additional to those in Part 1 are numbered starting
from 101.
A list of all parts of the IEC 62841 series, under the general title: Electric motor-operated
hand-held tools, transportable tools and lawn and garden machinery – Safety, can be found
on the IEC website.
The committee has decided that the contents of this document and its amendment will remain
in the
unchanged until the stability date indicated on the IEC website under webstore.iec.ch
data related to the specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of this publication be adopted for implementation
nationally not earlier than 36 months from the date of publication.

REDLINE VERSION – 6 – IEC 62841-2-4:2014+AMD1:2025 CSV
© IEC 2025
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS,
TRANSPORTABLE TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 2-4: Particular requirements for hand-held
sanders and polishers other than disc type

1 Scope
This clause of Part 1 is applicable, except as follows:
Addition:
This part of IEC 62841 applies to hand-held sanders and polishers with the exception of
disc-type tools covered by IEC 62841-2-3.
Tools covered by this standard include but are not limited to belt sanders, drum sanders or
polishers, reciprocating sanders or polishers, orbital sanders or polishers, and random
orbit sanders or polishers.
2 Normative references
This clause of Part 1 is applicable.
3 Terms and definitions
This clause of Part 1 is applicable, except as follows:
Addition:
3.101
sander
tool intended to remove surface material using an abrasive medium
3.102
polisher
tool equipped with a disc or pad intended for polishing
3.103
belt sander
sander equipped with an endless abrasive belt
3.104
drum sander or polisher
sander or polisher equipped with a rotating cylindrical working surface, oriented either inline
or at an angle with the motor axis
Note 1 to entry: Drum polishers are also known as burnishing machines.
Note 2 to entry: Drum sanders with a drum in line with the axis of the motor are also known as spindle sanders
or inline sanders.
© IEC 2025
3.105
orbital sander or polisher
sander or polisher equipped with a plate, which performs an orbital oscillating motion parallel
to the work surface
Note 1 to entry: Orbital sanders or polishers are also known as oscillating sanders or polishers
3.106
random orbit sander or polisher
sander or polisher equipped with a plate positioned eccentrically on the driving spindle which
can rotate freely around its axis parallel to the work surface
3.107
reciprocating sander or polisher
sander or polisher equipped with a plate which performs a reciprocating motion parallel to
the work surface
4 General requirements
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable, except as follows:
5.17 Addition:
The mass of the tool includes the dust extraction adapter, if any.
6 Radiation, toxicity and similar hazards
This clause of Part 1 is applicable.
7 Classification
This clause of Part 1 is applicable.
8 Marking and instructions
This clause of Part 1 is applicable, except as follows:
8.3 Addition:
For belt sanders and drum sanders and polishers, the direction of rotation shall be
indicated on the tool by an arrow, raised or sunk, or by any other means no less visible and
indelible.
8.14.1 Addition:
For belt sanders and drum sanders, the additional safety instructions as specified in
8.14.1.101 shall be given. This part may be printed separately from the “General Power Tool
Safety Warnings”.
REDLINE VERSION – 8 – IEC 62841-2-4:2014+AMD1:2025 CSV
© IEC 2025
8.14.1.101 Belt sander and drum sander safety warnings
Hold the power tool by insulated gripping surfaces, because the sanding surface may
contact its own cord. Cutting 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.
13 Resistance to heat and fire
This clause of Part 1 is applicable.
14 Moisture resistance
This clause of Part 1 is applicable.
15 Resistance to rusting
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 of the third paragraph, except for belt sanders and drum sanders and
polishers:
Orbital sanders and polishers, random orbit sanders and polishers, and reciprocating
sanders and polishers are operated for 24 h at a voltage equal to 1,1 times the highest rated
voltage or 1,1 times the upper limit of the rated voltage range, and then for 24 h at a supply
voltage equal to 0,9 times the lowest rated voltage or 0,9 times the lower limit of the rated
voltage range. The 24 h of operation need not be continuous. If applicable, the tool is
adjusted to the maximum attainable speed.

© IEC 2025
The tools are operated while the platen, fitted with abrasive paper in reverse position or a
polishing bonnet as applicable, is resting under the weight of the tool on a steel plate. The
abrasive paper should be replaced as required to avoid direct contact between platen and
steel plate. These tools are only tested in the upright position where the platen is horizontal.
18 Abnormal operation
This clause of Part 1 is applicable, except as follows:
18.8 Table 4 Replacement of Table 4:
Table 4 – Required performance levels
Type and purpose of SCF Minimum performance level
(PL)
Power switch – prevent unwanted switch-on for belt sanders, drum b
sanders and drum polishers
Power switch – prevent unwanted switch-on for random orbit sanders and a
polishers
Power switch – prevent unwanted switch-on for other sanders and
Not an SCF
polishers other than belt sanders, drum sanders, drum polishers
Power switch – provide desired switch-off for belt sanders, drum sanders b
and polishers and random orbit sanders and drum polishers
Power switch – provide desired switch-off for other sanders and polishers Not an SCF
other than belt sanders, drum sanders and drum polishers
Provide desired direction of rotation for belt sanders, drum sanders and a
drum polishers
Any speed limiting device Not an SCF
Prevent exceeding thermal limits as in Clause 18.4 and 18.5.3 a

19 Mechanical hazards
This clause of Part 1 is applicable, except as follows:
19.1 Replacement of the first paragraph:
Moving and dangerous parts other than the abrasive belt and belt rollers of belt sanders
shall, as far as is compatible with the use and working of the tool, be so positioned or
enclosed to provide adequate protection against personal injury. The requirements for the
abrasive belt and belt rollers of belt sanders are specified in 19.1.101, 19.1.102 and
19.1.103.
19.1.101 Belt sanders shall be designed to minimise the risk due to the nip hazard from the
roller closest to the operator without limiting the intended functionality of the tool.
Compliance is checked by the following tests 1 and 2.
1) An test rod with 8 mm diameter, applied parallel to the axis of the roller, shall not be able
to enter the in-feed nip between the roller and the abrasive belt. As the rod is attempted to
be inserted into this area, the abrasive belt shall not be displaced in any way that would
allow the entry of the rod. See Figure 101.
2) The abrasive belt is removed. A steel ball with 7 mm diameter is placed all along the in-
feed gap between the intended belt contact surface of the roller and the belt housing
enclosure with the tool turned upside down in the most unfavourable position, see

REDLINE VERSION – 10 – IEC 62841-2-4:2014+AMD1:2025 CSV
© IEC 2025
Figure 102. The steel ball shall not move under its own weight into the gap between the
roller and the belt housing beyond the line of complete passage as shown in Figure 102.
19.1.102 Belt sanders shall be designed to limit access to in-feed nip locations from
roller(s) other than those closest to the operator without limiting the intended functionality of
the tool.
In-feed nip locations are regarded to be located either
between the intended belt contact surface of the roller and the belt housing enclosure
or
between the intended belt contact surface of the roller and the abrasive belt.
Access shall be limited by either a) or b) as follows:
a) The chain distance between any in-feed nip location and the closest point on a handle
or grasping surface identified in accordance with 8.14.2 b) 6) shall be at least 100 mm.
Compliance is checked by measurement.
ab) If a stick-type auxiliary handle is mounted to the side with its axis perpendicular to the
direction of movement of the abrasive belt, it shall be provided with a flange having a
height not less than 12 mm above the grasping surface between the grasping area and
the in-feed nip location.
Compliance is checked by inspection and by measurement.
19.1.103 The ends of rollers that extend past the edge of the intended belt contact surface
shall be smooth and free of sharp edges.
Compliance is checked by inspection.
19.6 This subclause is not applicable.
20 Mechanical strength
This clause of Part 1 is applicable, except as follows:
20.5 This subclause is not applicable for sanders and polishers except for belt sanders
and drum sanders.
21 Construction
This clause of Part 1 is applicable, except as follows:
21.18.1 Addition:
For sanders other than belt sanders and drum sanders, power switches other than
momentary power switches are permitted.

© IEC 2025
For
– sanders other than belt sanders and drum sanders; and
– polishers other than drum polishers,
power switches other than momentary power switches are permitted.
21.18.1.2 This subclause of Part 1 is not applicable.
Replace the existing text of the third dashed item of 21.35 with the following new text:
– other sanders, with a sanding contact surface exceeding 200 cm ,
unless the tool is intended to process only metal in accordance with 8.14.2 b) 4) of Part 1.
21.30 This subclause is not applicable for sanders and polishers except for belt sanders
and drum sanders.
21.35 This subclause is applicable for:
– belt sanders and random orbit sanders with a sanding contact surface exceeding
100 cm ;
– drum sanders other than spindle sanders;
– other sanders, with a sanding contact surface exceeding 200 cm , unless they are
intended to process only metal in accordance with 8.14.2 b) 4).
22 Internal wiring
This clause of Part 1 is applicable.
23 Components
This clause of Part 1 is applicable, except as follows:
23.3 This subclause of Part 1 is not applicable.
24 Supply connection and external flexible cords
This clause of Part 1 is applicable.
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.

REDLINE VERSION – 12 – IEC 62841-2-4:2014+AMD1:2025 CSV
© IEC 2025
28 Creepage distances, clearances and distances through insulation
This clause of Part 1 is applicable.

© IEC 2025
IEC  1226/14
Key
1 rod with 8 mm diameter
2 abrasive belt
3 roller closest to the operator
Figure 101 – Rod test for the in-feed nip between the belt and roller

REDLINE VERSION – 14 – IEC 62841-2-4:2014+AMD1:2025 CSV
© IEC 2025
IEC  1227/14
Key
1 steel ball with 7 mm diameter
2 roller closest to the operator
3 intended belt contact surface of the roller
4 line of complete passage
Figure 102 – Steel ball test for the in-feed nip between the belt
housing enclosure and roller
© IEC 2025
Annexes
The annexes of Part 1 are applicable except as follows.

Annex I
(informative)
Measurement of noise and vibration emissions

I.2 Noise test code (grade 2)
This clause of Part 1 is applicable except as follows:
I.2.4 Installation and mounting conditions of the power tools during noise tests
Addition:
Sanders and polishers are suspended. The plate of the tool shall be horizontal.
I.2.5 Operating conditions
Addition:
Sanders and polishers are tested at no-load.
I.3 Vibration
I.3.3.2 Location of measurement
Addition:
Figure I.101 shows the positions for different sanders and polishers.
I.3.5.1 General
Addition:
For battery-operated tools, the tests are conducted with the lightest battery in accordance
with K.8.14.2 e) 2) of Part 1 that has the capacity to complete the fifteen measurements as
specified in I.3.6.1 of Part 1, under the operating conditions described in Table I.101 or
Table I.102, as applicable.
I.3.5.3 Operating conditions
Addition:
Sanders and polishers are tested under load observing the conditions shown in Tables I.101
and I.102.
Table I.101 − Operating conditions for sanders
Orientation
Sanding a horizontal steel plate 400 mm × 400 mm × 20 mm mounted on a bench

REDLINE VERSION – 16 – IEC 62841-2-4:2014+AMD1:2025 CSV
© IEC 2025
Tool bit Recommended sanding paper for steel with a grain size of 180
Feed force Vertical force applied in addition to the weight of the tool:
• 30 N ± 5 N, if the mass of the tool is less than 1,5 kg;
• 50 N ± 5 N, if the mass of the tool is equal or greater than 1,5 kg;
• or the force necessary to obtain rated input, whichever is the lower.
For battery-powered sanders, the mass of the tool to select the feed force shall be
the mass of the tool but not including any detachable battery pack(s) or separable
battery pack(s).
Pre-test requirements With a new sanding sheet carry out 1 min sanding before starting measurements
Table I.102 − Operating conditions for polishers
Orientation Polishing a horizontal steel plate 400 mm × 400 mm × 20 mm mounted on
...

IEC 62841-2-4 ®
Edition 1.0 2014-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 2-4: Particular requirements for hand-held sanders and polishers other than
disc type
Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 2-4: Exigences particulières pour les ponceuses et lustreuses portatives,
autres que du type à disque
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International Standards for all electrical, electronic and related technologies.

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IEC 62841-2-4 ®
Edition 1.0 2014-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated hand-held tools, transportable tools and lawn and

garden machinery – Safety –
Part 2-4: Particular requirements for hand-held sanders and polishers other than

disc type
Outils électroportatifs à moteur, outils portables et machines pour jardins et

pelouses – Sécurité –
Partie 2-4: Exigences particulières pour les ponceuses et lustreuses portatives,

autres que du type à disque
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX Q
ICS 25.140.20 ISBN 978-2-8322-1538-8

– 2 – IEC 62841-2-4:2014 © IEC 2014
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 7
5 General conditions for the tests . 7
6 Radiation, toxicity and similar hazards . 7
7 Classification . 7
8 Marking and instructions . 7
9 Protection against access to live parts . 8
10 Starting . 8
11 Input and current . 8
12 Heating . 8
13 Resistance to heat and fire . 8
14 Moisture resistance . 8
15 Resistance to rusting . 8
16 Overload protection of transformers and associated circuits . 8
17 Endurance . 8
18 Abnormal operation . 9
19 Mechanical hazards . 9
20 Mechanical strength . 10
21 Construction . 10
22 Internal wiring . 11
23 Components . 11
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
Annexes . 14
Annex I (informative) Measurement of noise and vibration emissions . 14
Annex K (normative) Battery tools and battery packs . 16
Bibliography . 17

Figure 101 – Rod test for the in-feed nip between the belt and roller . 12
Figure 102 – Steel ball test for the in-feed nip between the belt housing enclosure and
roller . 13
Figure I.101 − Position of transducers for sanders and polishers . 15

Table 4 – Required performance levels . 9
Table I.101 − Operating conditions for sanders . 14
Table I.102 − Operating conditions for polishers . 15

– 4 – IEC 62841-2-4:2014 © IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS,
TRANSPORTABLE TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 2-4: Particular requirements for hand-held
sanders and polishers other than disc type

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 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 62841-2-4 has been prepared by IEC technical committee 116:
Safety of motor-operated electric tools.
The text of this standard is based on the following documents:
FDIS Report on voting
116/164/FDIS 116/178/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

This Part 2-4 is to be used in conjunction with the first edition of IEC 62841-1 (2014).
This Part 2-4 supplements or modifies the corresponding clauses in IEC 62841-1, so as to
convert it into the IEC Standard: Particular requirements for hand-held sanders and polishers
other than disc type.
Where a particular subclause of Part 1 is not mentioned in this Part 2-4, that subclause
applies as far as reasonable. Where 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 small roman type.
The terms defined in Clause 3 are printed in bold typeface.
Subclauses, notes and figures which are additional to those in Part 1 are numbered starting
from 101.
A list of all parts of the IEC 62841 series, under the general title: Electric motor-operated
hand-held tools, transportable tools and lawn and garden machinery – Safety, can be found
on the IEC website.
The committee has decided that the contents of this publication 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.
NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of this publication be adopted for implementation
nationally not earlier than 36 months from the date of publication.

The contents of the corrigendum of October 2015 have been included in this copy.

– 6 – IEC 62841-2-4:2014 © IEC 2014
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS,
TRANSPORTABLE TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 2-4: Particular requirements for hand-held
sanders and polishers other than disc type

1 Scope
This clause of Part 1 is applicable, except as follows:
Addition:
This part of IEC 62841 applies to hand-held sanders and polishers with the exception of
disc-type tools covered by IEC 62841-2-3.
Tools covered by this standard include but are not limited to belt sanders, drum sanders or
polishers, reciprocating sanders or polishers, orbital sanders or polishers, and random
orbit sanders or polishers.
2 Normative references
This clause of Part 1 is applicable.
3 Terms and definitions
This clause of Part 1 is applicable, except as follows:
Addition:
3.101
sander
tool intended to remove surface material using an abrasive medium
3.102
polisher
tool equipped with a disc or pad intended for polishing
3.103
belt sander
sander equipped with an endless abrasive belt
3.104
drum sander or polisher
sander or polisher equipped with a rotating cylindrical working surface, oriented either inline
or at an angle with the motor axis
Note 1 to entry: Drum polishers are also known as burnishing machines.
Note 2 to entry: Drum sanders with a drum in line with the axis of the motor are also known as spindle sanders
or inline sanders.
3.105
orbital sander or polisher
sander or polisher equipped with a plate, which performs an orbital oscillating motion parallel
to the work surface
Note 1 to entry: Orbital sanders or polishers are also known as oscillating sanders or polishers
3.106
random orbit sander or polisher
sander or polisher equipped with a plate positioned eccentrically on the driving spindle which
can rotate freely around its axis parallel to the work surface
3.107
reciprocating sander or polisher
sander or polisher equipped with a plate which performs a reciprocating motion parallel to
the work surface
4 General requirements
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable, except as follows:
5.17 Addition:
The mass of the tool includes the dust extraction adapter, if any.
6 Radiation, toxicity and similar hazards
This clause of Part 1 is applicable.
7 Classification
This clause of Part 1 is applicable.
8 Marking and instructions
This clause of Part 1 is applicable, except as follows:
8.3 Addition:
For belt sanders and drum sanders and polishers, the direction of rotation shall be
indicated on the tool by an arrow, raised or sunk, or by any other means no less visible and
indelible.
8.14.1 Addition:
For belt sanders and drum sanders, the additional safety instructions as specified in
8.14.1.101 shall be given. This part may be printed separately from the “General Power Tool
Safety Warnings”.
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8.14.1.101 Belt sander and drum sander safety warnings
Hold the power tool by insulated gripping surfaces, because the sanding surface may
contact its own cord. Cutting 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.
13 Resistance to heat and fire
This clause of Part 1 is applicable.
14 Moisture resistance
This clause of Part 1 is applicable.
15 Resistance to rusting
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 of the third paragraph, except for belt sanders and drum sanders and
polishers:
Orbital sanders and polishers, random orbit sanders and polishers, and reciprocating
sanders and polishers are operated for 24 h at a voltage equal to 1,1 times the highest rated
voltage or 1,1 times the upper limit of the rated voltage range, and then for 24 h at a supply
voltage equal to 0,9 times the lowest rated voltage or 0,9 times the lower limit of the rated
voltage range. The 24 h of operation need not be continuous. If applicable, the tool is
adjusted to the maximum attainable speed.

The tools are operated while the platen, fitted with abrasive paper in reverse position or a
polishing bonnet as applicable, is resting under the weight of the tool on a steel plate. The
abrasive paper should be replaced as required to avoid direct contact between platen and
steel plate. These tools are only tested in the upright position where the platen is horizontal.
18 Abnormal operation
This clause of Part 1 is applicable, except as follows:
18.8 Table 4 Replacement:
Table 4 – Required performance levels
Type and purpose of SCF Minimum Performance
Level (PL)
Power switch – prevent unwanted switch-on for belt b
sanders, drum sanders and polishers
Power switch – prevent unwanted switch-on for random a
orbit sanders and polishers
Power switch – prevent unwanted switch-on for other Not an SCF
sanders and polishers
Power switch – provide desired switch-off for belt sanders, b
drum sanders and polishers and random orbit sanders
and polishers
Power switch – provide desired switch-off for other sanders Not an SCF
and polishers
Provide desired direction of rotation for belt sanders, drum a
sanders and polishers
Any speed limiting device Not an SCF
Prevent exceeding thermal limits as in Clause 18 a

19 Mechanical hazards
This clause of Part 1 is applicable, except as follows:
19.1 Replacement of the first paragraph:
Moving and dangerous parts other than the abrasive belt and belt rollers of belt sanders
shall, as far as is compatible with the use and working of the tool, be so positioned or
enclosed to provide adequate protection against personal injury. The requirements for the
abrasive belt and belt rollers of belt sanders are specified in 19.1.101, 19.1.102 and
19.1.103.
19.1.101 Belt sanders shall be designed to minimise the risk due to the nip hazard from the
roller closest to the operator without limiting the intended functionality of the tool.
Compliance is checked by the following tests 1 and 2.
1) An test rod with 8 mm diameter, applied parallel to the axis of the roller, shall not be able
to enter the in-feed nip between the roller and the abrasive belt. As the rod is attempted to
be inserted into this area, the abrasive belt shall not be displaced in any way that would
allow the entry of the rod. See Figure 101.
2) The abrasive belt is removed. A steel ball with 7 mm diameter is placed all along the in-
feed gap between the intended belt contact surface of the roller and the belt housing

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enclosure with the tool turned upside down in the most unfavourable position, see
Figure 102. The steel ball shall not move under its own weight into the gap between the
roller and the belt housing beyond the line of complete passage as shown in Figure 102.
19.1.102 Belt sanders shall be designed to limit access to in-feed nip locations from
roller(s) other than those closest to the operator without limiting the intended functionality of
the tool.
In-feed nip locations are regarded to be located either
between the intended belt contact surface of the roller and the belt housing enclosure
or
between the intended belt contact surface of the roller and the abrasive belt.
Access shall be limited by either a) or b) as follows:
a) The chain distance between any in-feed nip location and the closest point on a handle or
grasping surface identified in accordance with 8.14.2 b) 6) shall be at least 100 mm.
Compliance is checked by measurement.
a) If a stick-type auxiliary handle is mounted to the side with its axis perpendicular to the
direction of movement of the abrasive belt, it shall be provided with a flange having a
height not less than 12 mm above the grasping surface between the grasping area and the
in-feed nip location.
Compliance is checked by inspection and by measurement.
19.1.103 The ends of rollers that extend past the edge of the intended belt contact surface
shall be smooth and free of sharp edges.
Compliance is checked by inspection.
19.6 This subclause is not applicable.
20 Mechanical strength
This clause of Part 1 is applicable, except as follows:
20.5 This subclause is not applicable for sanders and polishers except for belt sanders
and drum sanders.
21 Construction
This clause of Part 1 is applicable, except as follows:
21.18.1 Addition:
For sanders other than belt sanders and drum sanders, power switches other than
momentary power switches are permitted.
21.30 This subclause is not applicable for sanders and polishers except for belt sanders
and drum sanders.
21.35 This subclause is applicable for:
– belt sanders and random orbit sanders with a sanding contact surface exceeding
100 cm ;
– drum sanders other than spindle sanders;
– other sanders, with a sanding contact surface exceeding 200 cm , unless they are
intended to process only metal in accordance with 8.14.2 b) 4).
22 Internal wiring
This clause of Part 1 is applicable.
23 Components
This clause of Part 1 is applicable.
24 Supply connection and external flexible cords
This clause of Part 1 is applicable.
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.

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IEC  1226/14
Key
1 rod with 8 mm diameter
2 abrasive belt
3 roller closest to the operator
Figure 101 – Rod test for the in-feed nip between the belt and roller

IEC  1227/14
Key
1 steel ball with 7 mm diameter
2 roller closest to the operator
3 intended belt contact surface of the roller
4 line of complete passage
Figure 102 – Steel ball test for the in-feed nip between the belt
housing enclosure and roller
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Annexes
The annexes of Part 1 are applicable except as follows.

Annex I
(informative)
Measurement of noise and vibration emissions

I.2 Noise test code (grade 2)
This clause of Part 1 is applicable except as follows:
I.2.4 Installation and mounting conditions of the power tools during noise tests
Addition:
Sanders and polishers are suspended. The plate of the tool shall be horizontal.
I.2.5 Operating conditions
Addition:
Sanders and polishers are tested at no-load.
I.3 Vibration
I.3.3.2 Location of measurement
Addition:
Figure I.101 shows the positions for different sanders and polishers.
I.3.5.3 Operating conditions
Addition:
Sanders and polishers are tested under load observing the conditions shown in Tables I.101
and I.102.
Table I.101 − Operating conditions for sanders
Orientation
Sanding a horizontal steel plate 400 mm × 400 mm × 20 mm mounted on a bench
Tool bit
Recommended sanding paper for steel with a grain size of 180
Feed force
Vertical force applied in addition to the weight of the tool:
• 30 N ± 5 N, if the mass of the tool is less than 1,5 kg;
• 50 N ± 5 N, if the mass of the tool is equal or greater than 1,5 kg;
•
...