Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 3-12: Particular requirements for transportable threading machines

IEC 62841-3-12:2017 applies to transportable threading machines. The rated voltage is not more than 250 V for single-phase a.c. or d.c. tools, and 480 V for three-phase a.c. tools. The rated input is not more than 3 700 W. The limits for the applicability of this standard for battery tools are given in Annex K. This standard deals with the hazards presented by tools which are encountered by all persons in the normal use and reasonably foreseeable misuse of the tools. Hand-held electric tools, which can be mounted on a support or working stand for use as fixed tools without any alteration of the tool itself, are within the scope of this standard and such combination of a hand-held tool and a support is considered to be a transportable tool and thus covered by the relevant Part 3.
This Part 3-12 is to be used in conjunction with the first edition of IEC 62841-1:2014.
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.

Outils électroportatifs à moteur, outils portables et machines pour jardins et pelouses - Sécurité - Partie 3-6: Exigences particulières relatives aux machines à fileter portables

IEC 62481-3-12:2017 s'applique aux machines à fileter portables. La tension assignée est inférieure à 3 700 W. Les limites d'application de la présente Norme aux outils fonctionnant sur batterie sont indiquées dans l’annexe K. La présente Norme traite des dangers présentés par les outils, encourus par tous les individus dans l'utilisation normale et dans l'utilisation impropre raisonnablement prévisible de ces outils. Les outils électroportatifs, qui peuvent être montés sur un support de travail pour être utilisés comme outils installés à poste fixe sans aucune modification de l'outil lui-même, sont compris dans le domaine d'application de la présente Norme et la combinaison d'un outil portatif et d'un support est considérée comme un outil portable, donc couvert par la Partie 3 applicable.
La présente Partie 3-12 doit être utilisée conjointement avec la première édition de l'IEC 62841-1 (2014).
L'attention des Comités Nationaux est attirée sur le fait que les fabricants d'appareils et les organismes d'essai peuvent avoir besoin d'une période transitoire après la publication d'une nouvelle publication IEC, ou d'une publication amendée ou révisée, pour fabriquer des produits conformes aux nouvelles exigences et pour adapter leurs équipements aux nouveaux essais ou aux essais révisés.
Le comité recommande que le contenu de cette publication soit entériné au niveau national au plus tôt 36 mois après la date de publication.
Mots clés: machines à fileter, outils portatifs, sécurité

General Information

Status
Published
Publication Date
28-Jul-2021
Current Stage
PPUB - Publication issued
Start Date
23-Aug-2017
Completion Date
23-Sep-2017
Ref Project

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Standard
IEC 62841-3-12:2017 - Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 3-12: Particular requirements for transportable threading machines
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IEC 62841-3-12:2017+AMD1:2021 CSV - Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 3-12: Particular requirements for transportable threading machines Released:7/29/2021
English and French language
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IEC 62841-3-12 ®
Edition 1.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 3-12: Particular requirements for transportable threading machines

Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 3-12: Exigences particulières relatives aux machines à fileter portables

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
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IEC 62841-3-12 ®
Edition 1.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated hand-held tools, transportable tools and lawn and

garden machinery – Safety –
Part 3-12: Particular requirements for transportable threading machines

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

pelouses – Sécurité –
Partie 3-12: Exigences particulières relatives aux machines à fileter portables

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.20 ISBN 978-2-8322-4753-2

– 2 – IEC 62841-3-12:2017 © IEC 2017
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General requirements . 6
5 General conditions for the tests . 6
6 Radiation, toxicity and similar hazards . 6
7 Classification . 6
8 Marking and instructions . 6
9 Protection against access to live parts . 7
10 Starting . 7
11 Input and current . 7
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 . 8
19 Mechanical hazards . 9
20 Mechanical strength . 9
21 Construction . 9
22 Internal wiring . 10
23 Components . 10
24 Supply connection and external flexible cords . 10
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 . 12
Annex I (informative) Measurement of noise and vibration emissions . 12
Annex K (normative) Battery tools and battery packs . 13
Bibliography . 14

Figure 101 – Threading machine . 11

Table 101 – Load torque . 7
Table 4 – Required performance levels . 8

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY – SAFETY –

Part 3-12: Particular requirements for transportable
threading machines
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 62841-3-12 has been prepared by IEC technical committee 116:
Safety of motor-operated electric tools.
The text of this International Standard is based on the following documents:
FDIS Report on voting
116/338/FDIS 116/343/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC 62841-3-12:2017 © IEC 2017
This Part 3-12 is to be used in conjunction with the first edition of IEC 62841-1 (2014).
This Part 3-12 supplements or modifies the corresponding clauses in IEC 62841-1, so as to
convert it into the IEC Standard: Particular requirements for transportable threading
machines.
Where a particular subclause of Part 1 is not mentioned in this Part 3-12, that subclause
applies as far as relevant. 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;
– terms defined in Clause 3: 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 will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document 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.

ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY – SAFETY –

Part 3-12: Particular requirements for transportable
threading machines
1 Scope
This clause of Part 1 is applicable, except as follows:
Addition:
This part of IEC 62841 applies to transportable threading machines.
2 Normative references
This clause of Part 1 is applicable, except as follows:
Addition:
IEC 60947-5-1, Low-voltage switchgear and controlgear – Part 5-1: Control circuit devices
and switching elements – Electromechanical control circuit devices
ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads – Part 1:
Dimensions, tolerances and designation
ANSI/ASME B1.20.2M:2006, Pipe threads, 60 deg., general purpose
3 Terms and definitions
This clause of Part 1 is applicable, except as follows:
Addition:
3.101
threading machine
tool that is capable of creating an external thread by either rotating the workpiece or the
cutting head, by a mechanical process such as cutting or forming
Note 1 to entry: See Figure 101.
3.102
ISO style thread
thread according to ISO 7-1:1994: 55 degree pressure-tight taper pipe threads (R)
Note 1 to entry: ISO type R threads are also known as BSPT style threads.
3.103
NPT style thread
thread according to National Pipe Taper: 60 degree pressure-tight taper pipe threads (NPT)
per ANSI/ASME B1.20.2M:2006
– 6 – IEC 62841-3-12:2017 © IEC 2017
4 General requirements
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable.
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:
8.1 Addition:
– maximum diameter of the thread which can be created. The maximum diameter may be
specified in SI units or inches.
NOTE According to the International System of Units, only SI Units are to be used. Nevertheless, some pipe
diameters and threads are still specified in inches internationally.
8.14.1 Addition:
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”.
8.14.1.101 Threading machine safety warnings
a) Keep floor dry and free of slippery materials such as oil. Slippery floors invite
accidents.
b) Restrict access or barricade the area from bystanders when the workpiece extends
beyond the machine to provide a minimum of one metre clearance from the
workpiece. Restricting access or barricading the work area around the workpiece will
reduce the risk of entanglement.
c) Do not wear gloves. Gloves may be entangled by the rotating pipe or machine parts
leading to personal injury.
d) Do not use the machine for other purposes such as drilling holes or turning
winches. Other uses or modifying this machine for other applications may increase the
risk of serious injury.
e) Secure the machine to a bench or stand. Support long heavy pipe with pipe
supports. This practice will prevent the machine from tipping.
f) While operating the machine, stand on the side where the operator control switch is
located. Operating the machine from this side eliminates need to reach over the machine.
g) Keep hands away from rotating pipe and fittings. Stop the machine before wiping
pipe threads or screwing on fittings. Allow the machine to come to a complete stop
before touching the pipe. This practice will reduce the risk of entanglement in rotating
parts.
h) Do not use this machine to install or remove fittings. This practice could lead to
trapping, entanglement and loss of control.
NOTE Replacing “install or remove” with “make or break” is possible.
i) Do not operate the machine without all covers properly installed. Exposing moving
parts increases the probability of entanglement.
j) Do not use this machine if the foot switch is broken or missing. The foot switch
provides safe control of the machine, such as emergency shutoff in case of entanglement.
8.14.2 b) Additional items:
101) Instruction on the proper location of the operator while operating the machine;
102) For threading machines with multiple gear box settings: information about which gear
box setting is to be used for each thread diameter and style.
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, except as follows:
Replacement:
The rated input or rated current shall be at least 100 % of the highest measured input or
current after applying a minimum torque as specified in Table 101 for the largest
recommended thread size for each speed setting in accordance with 8.1 and 8.14.2 b) 102).
Compliance is checked by measuring the power input or current of the tool when stabilized
while all circuits which can operate simultaneously are in operation.
For tools marked with one or more rated voltages, the test is made at each of the rated
voltages. For tools marked with one or more rated voltage ranges, the test is made at both
the upper and lower limits of the ranges. For tools with multiple gear box settings, the test is
made at each specified gear box setting in accordance with 8.14.2 b). The highest value of
input or current is applicable.
Table 101 – Load torque
Torque
Thread size
Nm
ISO style thread NPT style thread
1" 108 108
1 1/4" 149 149
1 1/2" 163 163
2” 217 217
2 1/2" 217 380
3” 244 542
4” 386 583
– 8 – IEC 62841-3-12:2017 © IEC 2017
12 Heating
This clause of Part 1 is applicable, except as follows:
12.2.1 Replacement:
Threading machines are operated for 30 s at load followed by 30 s no load and then
switched off for a rest period of 60 s. This cycle is continued until thermal equilibrium is
reached, or for 30 cycles, whichever is achieved first. The tool is loaded during the periods of
operation by means of a brake adjusted to attain the highest input or current as determined in
Clause 11. The brake load may be ramped up over a period of time not to exceed 5 s. This
ramp up time is added to the 30 s cycle at load. Temperatures are measured at the end of the
last load period.
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.
18 Abnormal operation
This clause of Part 1 is applicable, except as follows:
18.8 Replacement of Table 4:
Table 4 – Required performance levels
Type and purpose of SCF Minimum Performance Level
(PL)
b
Power switch/foot switch − prevent unwanted switch-on
Power switch/foot switch − provide desired switch-off c
Provide desired direction of rotation Not a SCF
Any electronic control to pass the test of 18.3 Not a SCF
Any speed limiting device Not a 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 chuck(s), cutting head or workpiece shall be so
positioned or enclosed to provide adequate protection against personal injury.
19.6 This subclause is not applicable.
19.8 This subclause is applicable for threading machines, if provided with:
– wheels; or
– a cart with wheels.
19.101 Run-down
The run-down of the tool spindle after switching off the motor shall be limited.
Compliance is checked by the following test, which is performed ten times.
The tool motor is switched on under no-load for a minimum of 30 s, then switched off. For
each test, the run-down of the spindle shall not exceed two revolutions.
20 Mechanical strength
This clause of Part 1 is applicable, except as follows:
20.5 This subclause is not applicable.
21 Construction
This clause of Part 1 is applicable, except as follows:
21.17 Replacement:
Threading machines shall be fitted with a power switch which is not a momentary power
switch. The actuating member of this switch shall be easily visible and accessible from the
operator’s position designated in 8.14.2 b) 101).
The machine shall also be fitted with a foot switch which is a momentary power switch
without a lock-on device.
It shall be necessary that both the power switch and the foot switch are in the “on” position in
order to operate the machine.
Compliance is checked by inspection.
21.18.2.1 Addition:
After voltage recovery, following an interruption of the supply, the tool shall not automatically
restart. The foot switch as required in 21.17 is regarded as a momentary power switch.

– 10 – IEC 62841-3-12:2017 © IEC 2017
21.18.2.3 Replacement:
The foot switch required in 21.17 shall be shielded so that unintentional movement to the “on”
position is unlikely and the shield shall have sufficient strength.
Compliance is checked by the test of 20.3.2 and by the following test.
With the foot switch placed on a horizontal surface, it shall not be possible to activate the foot
switch with a 12 mm diameter rod held perpendicular to the horizontal surface and applied in
a perpendicular motion with a force of 50 N.
21.30 This subclause is not applicable.
22 Internal wiring
This clause of Part 1 is applicable.
23 Components
This clause of Part 1 is applicable, except as follows:
23.1.10 Addition:
Alternatively, foot switches, if separately tested and found to comply with IEC 60947-5-1, shall
meet the rating and endurance requirements specified in 23.1.10.1.
23.2 Replacement of the first dash:
– switches or automatic controls in flexible cords, however the foot switch required in 21.17
and protective devices such as RCDs may be fitted in flexible cords;
24 Supply connection and external flexible cords
This clause of Part 1 is applicable, except as follows:
24.4 Addition:
If rubber insulated cables are used, they shall be polychloroprene or other equivalent
synthetic elastomer sheathed cables (code designation 60245 IEC 57 or 60245 IEC 66).
NOTE 101 In the United States of America, the following conditions apply:
Supply cords shall be not lighter than Junior Hard service (SJO) cord in accordance with the National Electrical
Code, NFPA 70.
Attachment plugs and cords shall be equal to or greater than the rating of the tool.
NOTE 102 In Canada, the following conditions apply:
Supply cords shall be not lighter than Hard Usage cord (SJO) in accordance with the Canadian Electrical Code,
Part 1.
Attachment plugs and cords shall be equal to or greater than the rating of the tool.
24.20 Addition:
The cord for the foot switch required by 21.17 is regarded as an interconnection cord,
except that the test of 24.11 is not applicable.

24.21 Addition:
The cord for the foot switch required by 21.17 shall not be detachable at either end without
the aid of a tool.
25 Terminals for external conductors
This clause of Part 1 is applicable.
...


IEC 62841-3-12 ®
Edition 1.1 2021-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn
and garden machinery – Safety –
Part 3-12: Particular requirements for transportable threading machines

Outils électroportatifs à moteur, outils portables et machines pour jardins
et pelouses – Sécurité –
Partie 3-12: Exigences particulières relatives aux machines à fileter portables

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 l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
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
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latest edition, a corrigendum or an amendment might have been published.

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IEC 62841-3-12 ®
Edition 1.1 2021-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn
and garden machinery – Safety –
Part 3-12: Particular requirements for transportable threading machines
Outils électroportatifs à moteur, outils portables et machines pour jardins
et pelouses – Sécurité –
Partie 3-12: Exigences particulières relatives aux machines à fileter portables
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.20 ISBN 978-2-8322-5410-3

IEC 62841-3-12 ®
Edition 1.1 2021-07
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Electric motor-operated hand-held tools, transportable tools and lawn
and garden machinery – Safety –
Part 3-12: Particular requirements for transportable threading machines

Outils électroportatifs à moteur, outils portables et machines pour jardins
et pelouses – Sécurité –
Partie 3-12: Exigences particulières relatives aux machines à fileter portables

– 2 – IEC 62841-3-12:2017+AMD1:2021 CSV
© IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Terms and definitions . 5
4 General requirements . 6
5 General conditions for the tests . 6
6 Radiation, toxicity and similar hazards . 6
7 Classification . 6
8 Marking and instructions . 6
9 Protection against access to live parts . 7
10 Starting . 7
11 Input and current . 7
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 . 8
19 Mechanical hazards . 9
20 Mechanical strength . 9
21 Construction . 9
22 Internal wiring . 10
23 Components . 10
24 Supply connection and external flexible cords . 10
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 . 13
Annex I (informative) Measurement of noise and vibration emissions . 13
Annex K (normative) Battery tools and battery packs . 14
Bibliography . 15

Figure 101 – Threading machine . 12

Table 101 – Load torque . 7
Table 4 – Required performance levels . 8

© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY – SAFETY –

Part 3-12: Particular requirements for transportable
threading machines
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.
This consolidated version of the official IEC Standard and its amendment has been
prepared for user convenience.
IEC 62841-3-12 edition 1.1 contains the first edition (2017-08) [documents 116/338/FDIS
and 116/343/RVD] and its amendment 1 (2021-07) [documents 116/488/CDV and
116/512/RVC].
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
red text. A separate Final version with all changes accepted is available in this
publication.
– 4 – IEC 62841-3-12:2017+AMD1:2021 CSV
© IEC 2021
International Standard IEC 62841-3-12 has been prepared by IEC technical committee 116:
Safety of motor-operated electric tools.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 3-12 is to be used in conjunction with the first edition of IEC 62841-1 (2014).
This Part 3-12 supplements or modifies the corresponding clauses in IEC 62841-1, so as to
convert it into the IEC Standard: Particular requirements for transportable threading
machines.
Where a particular subclause of Part 1 is not mentioned in this Part 3-12, that subclause
applies as far as relevant. 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;
– terms defined in Clause 3: 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 the base publication and its amendment will
remain unchanged until the stability date indicated on the IEC web site under 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.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
© IEC 2021
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY – SAFETY –

Part 3-12: Particular requirements for transportable
threading machines
1 Scope
This clause of Part 1 is applicable, except as follows:
Addition:
This part of IEC 62841 applies to transportable threading machines.
2 Normative references
This clause of Part 1 is applicable, except as follows:
Addition:
IEC 60947-5-1, Low-voltage switchgear and controlgear – Part 5-1: Control circuit devices
and switching elements – Electromechanical control circuit devices
ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads – Part 1:
Dimensions, tolerances and designation
ANSI/ASME B1.20.2M:2006, Pipe threads, 60 deg., general purpose
3 Terms and definitions
This clause of Part 1 is applicable, except as follows:
Addition:
3.101
threading machine
tool that is capable of creating an external thread by either rotating the workpiece or the
cutting head, by a mechanical process such as cutting or forming
Note 1 to entry: See Figure 101.
3.102
ISO style thread
thread according to ISO 7-1:1994: 55 degree pressure-tight taper pipe threads (R)
Note 1 to entry: ISO type R threads are also known as BSPT style threads.
3.103
NPT style thread
thread according to National Pipe Taper: 60 degree pressure-tight taper pipe threads (NPT)
per ANSI/ASME B1.20.2M:2006
– 6 – IEC 62841-3-12:2017+AMD1:2021 CSV
© IEC 2021
4 General requirements
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable.
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:
8.1 Addition:
– maximum diameter of the thread which can be created. The maximum diameter may be
specified in SI units or inches.
NOTE According to the International System of Units, only SI Units are to be used. Nevertheless, some pipe
diameters and threads are still specified in inches internationally.
8.14.1 Addition:
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”.
8.14.1.101 Threading machine safety warnings
a) Keep floor dry and free of slippery materials such as oil. Slippery floors invite
accidents.
b) Restrict access or barricade the area from bystanders when the workpiece extends
beyond the machine to provide a minimum of one metre clearance from the
workpiece. Restricting access or barricading the work area around the workpiece will
reduce the risk of entanglement.
c) Do not wear gloves. Gloves may be entangled by the rotating pipe or machine parts
leading to personal injury.
d) Do not use the machine for other purposes such as drilling holes or turning
winches. Other uses or modifying this machine for other applications may increase the
risk of serious injury.
e) Secure the machine to a bench or stand. Support long heavy pipe with pipe
supports. This practice will prevent the machine from tipping.
f) While operating the machine, stand on the side where the operator control switch is
located. Operating the machine from this side eliminates need to reach over the machine.
g) Keep hands away from rotating pipe and fittings. Stop the machine before wiping
pipe threads or screwing on fittings. Allow the machine to come to a complete stop
before touching the pipe. This practice will reduce the risk of entanglement in rotating
parts.
© IEC 2021
h) Do not use this machine to install or remove fittings. This practice could lead to
trapping, entanglement and loss of control.
NOTE Replacing “install or remove” with “make or break” is possible.
i) Do not operate the machine without all covers properly installed. Exposing moving
parts increases the probability of entanglement.
j) Do not use this machine if the foot switch is broken or missing. The foot switch
provides safe control of the machine, such as emergency shutoff in case of entanglement.
8.14.2 b) Additional items:
101) Instruction on the proper location of the operator while operating the machine;
102) For threading machines with multiple gear box settings: information about which gear
box setting is to be used for each thread diameter and style.
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, except as follows:
Replacement:
The rated input or rated current shall be at least 100 % of the highest measured input or
current after applying a minimum torque as specified in Table 101 for the largest
recommended thread size for each speed setting in accordance with 8.1 and 8.14.2 b) 102).
Compliance is checked by measuring the power input or current of the tool when stabilized
while all circuits which can operate simultaneously are in operation.
For tools marked with one or more rated voltages, the test is made at each of the rated
voltages. For tools marked with one or more rated voltage ranges, the test is made at both
the upper and lower limits of the ranges. For tools with multiple gear box settings, the test is
made at each specified gear box setting in accordance with 8.14.2 b). The highest value of
input or current is applicable.
Table 101 – Load torque
Torque
Thread size
Nm
ISO style thread NPT style thread
1" 108 108
1 1/4" 149 149
1 1/2" 163 163
2” 217 217
2 1/2" 217 380
3” 244 542
4” 386 583
– 8 – IEC 62841-3-12:2017+AMD1:2021 CSV
© IEC 2021
12 Heating
This clause of Part 1 is applicable, except as follows:
12.2.1 Replacement:
Threading machines are operated for 30 s at load followed by 30 s no load and then
switched off for a rest period of 60 s. This cycle is continued until thermal equilibrium is
reached, or for 30 cycles, whichever is achieved first. The tool is loaded during the periods of
operation by means of a brake adjusted to attain the highest input or current as determined in
Clause 11. The brake load may be ramped up over a period of time not to exceed 5 s. This
ramp up time is added to the 30 s cycle at load. Temperatures are measured at the end of the
last load period.
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.
18 Abnormal operation
This clause of Part 1 is applicable, except as follows:
18.8 Replacement of Table 4:
Table 4 – Required performance levels
Type and purpose of SCF Minimum Performance Level
(PL)
Power switch/foot switch − prevent unwanted switch-on b
Power switch/foot switch − provide desired switch-off c
Provide desired direction of rotation Not a SCF
Any electronic control to pass the test of 18.3 Not a SCF
Any speed limiting device Not a SCF
Prevent exceeding thermal limits as in Clause 18 a

© IEC 2021
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 chuck(s), cutting head or workpiece shall be so
positioned or enclosed to provide adequate protection against personal injury.
19.6 This subclause is not applicable.
19.8 This subclause is applicable for threading machines, if provided with:
– wheels; or
– a cart with wheels.
19.101 Run-down
The run-down of the tool spindle after switching off the motor shall be limited.
Compliance is checked by the following test, which is performed ten times.
The tool motor is switched on under no-load for a minimum of 30 s, then switched off. For
each test, the run-down of the spindle shall not exceed two revolutions.
20 Mechanical strength
This clause of Part 1 is applicable, except as follows:
20.5 This subclause is not applicable.
21 Construction
This clause of Part 1 is applicable, except as follows:
21.17 Replacement:
Threading machines shall be fitted with a power switch which is not a momentary power
switch. The actuating member of this switch shall be easily visible and accessible from the
operator’s position designated in 8.14.2 b) 101).
The machine shall also be fitted with a foot switch which is a momentary power switch
without a lock-on device.
It shall be necessary that both the power switch and the foot switch are in the “on” position in
order to operate the machine.
Compliance is checked by inspection.
21.18.2.1 Addition:
After voltage recovery, following an interruption of the supply, the tool shall not automatically
restart. The foot switch as required in 21.17 is regarded as a momentary power switch.

– 10 – IEC 62841-3-12:2017+AMD1:2021 CSV
© IEC 2021
21.18.2.3 Replacement:
The foot switch required in 21.17 shall be shielded so that unintentional movement to the “on”
position is unlikely and the shield shall have sufficient strength.
Compliance is checked by the test of 20.3.2 and by the following test.
With the foot switch placed on a horizontal surface, it shall not be possible to activate the foot
switch with a 12 mm diameter rod held perpendicular to the horizontal surface and applied in
a perpendicular motion with a force of 50 N.
21.30 This subclause is not applicable.
21.35 This subclause of Part 1 is not applicable.
22 Internal wiring
This clause of Part 1 is applicable.
23 Components
This clause of Part 1 is applicable, except as follows:
23.1.10 Addition:
Alternatively, foot switches, if separately tested and found to comply with IEC 60947-5-1, shall
meet the rating and endurance requirements specified in 23.1.10.1.
23.2 Replacement of the first dash:
– switches or automatic controls in flexible cords, however the foot switch required in 21.17
and protective devices such as RCDs may be fitted in flexible cords;
23.3 This subclause of Part 1 is not applicable.
24 Supply connection and external flexible cords
This clause of Part 1 is applicable, except as follows:
24.4 Addition:
If rubber insulated cables are used, they shall be polychloroprene or other equivalent
synthetic elastomer sheathed cables (code designation 60245 IEC 57 or 60245 IEC 66).
NOTE 101 In the United States of America, the following conditions apply:
Supply cords shall be not lighter than Junior Hard service (SJO) cord in accordance with the National Electrical
Code, NFPA 70.
Attachment plugs and cords shall be equal to or greater than the rating of the tool.
NOTE 102 In Canada, the following conditions apply:
Supply cords shall be not lighter than Hard Usage cord (SJO) in accordance with the Canadian Electrical Code,
Part 1.
Attachment plugs and cords shall be equal to or greater than the rating of the tool.

© IEC 2021
24.20 Addition:
The cord for the foot switch required by 21.17 is regarded as an interconnection cord,
except that the test of 24.11 is not applicable.
24.21 Addition:
The cord for the foot switch required by 21.17 shall not be detachable at either end without
the aid of a tool.
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.

– 12 – IEC 62841-3-12:2017+AMD1:2021 CSV
© IEC 2021
IEC
Key
1 rear chuck
2 power switch
3 front chuck
4 cutting head
5 foot switch
Figure 101 – Threading machine

© IEC 2021
Annexes
The annexes of Part 1 are applicable except as follows.

Annex I
(informative)
Measurement of noise and vibration emissions
NOTE In Europe (EN 62841-3-12), Annex I is normative.
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:
Threading machines supplied with a working stand are placed on this working stand standing
on a reflecting plane.
Other threading machines are placed on a test bench as shown in Figure I.1 standing on a
reflecting plane.
I.2.5 Operating conditions
Addition:
Threading machines are tested under no-load at the highest speed setting.
I.3 Vibration
This clause of Part 1 is not applicable.

– 14 – IEC 62841-3-12:2017+AMD1:2021 CSV
© IEC 2021
Annex K
(normative)
Battery tools and battery packs
K.1 Scope
Addition:
All clauses of this Part 3-12 apply unless otherwise specified in this annex.
K.11 Input and current
This clause is not applicable.
K.12.2.1 This subclause is not applicable.

© IEC 2021
Bibliography
The bibliography of Part 1 is applicable.

___________
– 16 – IEC 62841-3-12:2017+AMD1:2021 CSV
© IEC 2021
SOMMAIRE
AVANT-PROPOS . 17
1 Domaine d'application . 19
2 Références normatives . 19
3 Termes et définitions . 19
4 Exigences générales. 20
5 Conditions générales d'essai . 20
6 Rayonnement, toxicité et dangers analogues . 20
7 Classification . 20
8 Marquage et instructions . 20
9 Protection contre l’accès aux parties actives . 21
10 Démarrage . 21
11 Puissance et courant . 21
12 Echauffements . 22
13 Résistance à la chaleur et au feu . 22
14 Résistance à l'humidité . 22
15 Protection contre la rouille . 22
16 Protection contre la surcharge des transformateurs et des circuits associés . 22
17 Endurance . 22
18 Fonctionnement anormal . 23
19 Dangers mécaniques . 23
20 Résistance mécanique . 23
21 Construction . 24
22 Conducteurs internes . 24
23 Composants . 24
24 Raccordement au réseau et câbles souples extérieurs . 25
25 Bornes pour conducteurs externes . 25
26 Dispositions en vue de la mise à la terre . 25
27 Vis et connexions . 25
28 Lignes de fuite, distances d’isolement et distances à travers l’isolation . 26
Annexes . 27
Annexe I (informative) Mesure du bruit et des vibrations . 27
Annexe K (normative) Batteries et blocs de batteries . 28
Bibliographie . 29

Figure 101 – Machine à fileter . 26

Tableau 101 – Couple de charge . 22
Tableau 4 – Niveaux de performance exigés . 23

© IEC 2021
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
OUTILS ÉLECTROPORTATIFS À MOTEUR, OUTILS PORTABLES
ET MACHINES POUR JARDINS ET PELOUSES – SÉCURITÉ –

Partie 3-12: Exigences particulières relatives aux
machines à fileter portables
AVANT-PROPOS
1) La Commission Electrotechnique Internationale (IEC) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de l’IEC). L’IEC a pour
objet de favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines
de l'électricité et de l'électronique. A cet effet, l’IEC – entre autres activités – publie des Normes
internationales, des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au
public (PAS) et des Guides (ci-après dénommés "Publication(s) de l’IEC"). Leur élaboration est confiée à des
comités d'études, aux travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les
organisations internationales, gouvernementales et non gouvernementales, en liaison avec l’IEC, participent
également aux travaux. L’IEC collabore étroitement avec l'Organisation Internationale de Normalisation (ISO),
selon des conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de l’IEC concernant les questions techniques représentent, dans la mesure
du possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de l’IEC
intéressés sont représentés dans chaque comité d’études.
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comme telles par les Comités nationaux de l’IEC. Tous les efforts raisonnables sont entrepris afin que l’IEC
s'assure de l'exactitude du contenu technique de ses publications; l’IEC ne peut pas être tenue responsable de
l'éventuelle mauvaise utilisation ou interprétation qui en est faite par un quelconque utilisateur final.
4) Dans le but d'encourager l'uniformité internationale, les Comités nationaux de l’IEC s'engagent, dans toute la
mesure possible, à appliquer de façon transparente les Publications de l’IEC dans leurs publications nationales
et régionales. Toutes divergences entre toutes Publications de l’IEC et toutes publications nationales ou
régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.
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fournissent des services d'évaluation de conformité et, dans certains secteurs, accèdent aux marques de
conformité de l’IEC. L’IEC n'est responsable d'aucun des services effectués par les organismes de certification
indépendants.
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mandataires, y compris ses experts particuliers et les membres de ses comités d'études et des Comités
nationaux de l’IEC, pour tout préjudice causé en cas de dommages corporels et matériels, ou de tout autre
dommage de quelque nature que ce soit, directe ou indirecte, ou pour supporter les coûts (y compris les frais
de justice) et les dépenses découlant de la publication ou de l'utilisation de cette Publication de l’IEC ou de
toute autre Publication de l’IEC, ou au crédit qui lui est accordé.
8) L'attention est attirée sur les références normatives citées dans cette publication. L'utilisation de publications
référencées est obligatoire pour une application correcte de la présente publication.
9) L’attention est attirée sur le fait que certains des éléments de la présente Publication de l’IEC peuvent faire
l’objet de droits de brevet. L’IEC ne saurait être tenue pour responsable de ne pas avoir identifié de tels droits
de brevets et de ne pas avoir signalé leur existence.
Cette version consolidée de la Norme IEC officielle et de son amendement a été
préparée pour la commodité de l'utilisateur.
L’IEC 62841-3-12 édition 1.1 contient la première édition (2017-08) [documents
116/338/FDIS et 116/343/RVD] et son amendement 1 (2021-07) [documents 116/488/CDV
et 116/512/RVC].
Dans cette version Redline, une ligne verticale dans la marge indique où le contenu
technique est modifié par l'amendement 1. Les ajouts sont en vert, les suppressions
sont en rouge, barrées. Une version Finale avec toutes les modifications acceptées est
disponible dans cette publication.

– 18 – IEC 62841-3-12:2017+AMD1:2021 CSV
© IEC 2021
La Norme internationale IEC 62841-3-12 a été établie par le comité d'études 116 de l’IEC:
Sécurité des outils électroportatifs à moteur.
Ce document a été rédigé selon les Directives ISO/IEC, Partie 2.
La présente Partie 3-12 doit être utilisée conjointement avec la première édition de
l'IEC 62841-1 (2014).
La présente Partie 3-12 complète ou modifie les articles correspondants de l'IEC 62841-1 de
façon à transformer cette dernière en norme IEC: Exigences particulières relatives aux
machines à fileter portables.
Lorsqu'un paragraphe particulier de la Partie 1 n'est pas mentionné dans la présente
Partie 3-12, ce paragraphe s'applique pour autant qu'il soit pertinent. Lorsque la présente
norme spécifie "addition", "modification" ou "remplacement", le texte correspondant de la
Partie 1 doit être adapté en conséquence.
Les caractères d'imprimerie suivants sont employés:
– exigences: en caractères romains;
– spécifications d'essai: en caractères italiques;
– notes: en petits caractères romains;
– termes définis à l'Article 3: en caractères gras.
Les paragraphes, notes et figures complémentaires à ceux de la Partie 1 sont numérotés à
partir de 101.
Une liste de toutes les parties de la série IEC 62841, publiées sous le titre général: Outils
électroportatifs à moteur, outils portables et machines pour jardins et pelouses – Sécurité,
peut être consultée sur le site Web de l'IEC.
Le comité a décidé que le contenu de la publication de base et de son amendement ne sera
pas modifié avant la date de stabilité indiquée sur le site web de l’IEC sous webstore.iec.ch
dans les données relatives à la publication recherchée. A cette date, la publication sera
• reconduite,
• supprimée,
• remplacée par une édition révisée, ou
• amendée.
NOTE L'attention des Comités Nationaux est attirée sur le fait que les fabricants d'appareils et les organismes
d'essai peuvent avoir besoin d'une période transitoire après la publication d'une nouvelle publication IEC, ou d'une
publication amendée ou révisée, pour fabriquer des produits conformes aux nouvelles exigences et pour adapter
leurs équipements aux nouveaux essais ou aux essais révisés.
Le comité recommande que le contenu de cette publication soit entériné au niveau national au plus tôt 36 mois
après la date de publication.
IMPORTANT – Le logo "colour inside" qui se trouve sur la page de couverture de cette
publication indique qu'elle contient des couleurs qui sont considérées comme utiles à
une bonne compréhension de son contenu. Les utilisateurs devraient, par conséquent,
imprimer cette publication en utilisant une imprimante couleur.

© IEC 2021
OUTILS ÉLECTROPORTATIFS À MOTEUR, OUTILS PORTABLES
ET MACHINES POUR JARDINS ET PELOUSES – SÉCURITÉ –

Partie 3-12: Exigences particulières relatives aux
machines à fileter portables
1 Domaine d'application
L'article de la Partie 1 s'applique, avec les exceptions suivantes:
Addition:
La présente partie de l'IEC 62841 s'applique aux machines à fileter portables.
2 Références normatives
L'article de la Partie 1 s'applique, avec les exceptions suivantes:
Addition:
IEC 60947-5-1, Appareillage à basse tension – Partie 5-1: Appareils et éléments de
commutation pour circuits de commande – Appareils électr
...

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