Amendment 1 - Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 3-6: Particular requirements for transportable diamond drills with liquid system

Amendement 1 - Outils électroportatifs à moteur, outils portables et machines pour jardins et pelouses - Sécurité - Partie 3-6: Exigences particulières pour les forets diamantés transportables avec système liquide

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Published
Publication Date
02-May-2022
Current Stage
PPUB - Publication issued
Completion Date
03-May-2022
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IEC 62841-3-6:2014/AMD1:2022 - Amendment 1 - Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 3-6: Particular requirements for transportable diamond drills with liquid system
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IEC 62841-3-6
Edition 1.0 2022-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 3-6: Particular requirements for transportable diamond drills with liquid
system
Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 3-6: Exigences particulières pour les forets diamantés transportables
avec système liquide
IEC 62841-3-6:2014-05/AMD1:2022-05(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62841-3-6
Edition 1.0 2022-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 3-6: Particular requirements for transportable diamond drills with liquid
system
Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 3-6: Exigences particulières pour les forets diamantés transportables
avec système liquide
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.20 ISBN 978-2-8322-1097-8

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 62841-3-6:2014/AMD1:2022
© IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY –
SAFETY –
Part 3-6: Particular requirements for transportable
diamond drills with liquid system
AMENDMENT 1
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 document may be the subject of patent

rights. IEC shall not be held responsible for identifying any or all such patent rights.

Amendment 1 to IEC 62841-3-6:2014 has been prepared by IEC technical committee 116:

Safety of motor-operated electric tools.
The text of this Amendment is based on the following documents:
Draft Report on voting
116/575/FDIS 116/583/RVD

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
---------------------- Page: 4 ----------------------
IEC 62841-3-6:2014/AMD1:2022 – 3 –
© IEC 2022
The language used for the development of this Amendment is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are

described in greater detail at www.iec.ch/standardsdev/publications/.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under 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.
___________
1 Scope
Replace the existing text with the following new text:
This clause of Part 1 is applicable, except as follows.
Replacement of the third paragraph:

The rated voltage is not more than 250 V for single-phase AC or DC tools, and 480 V for three-

phase AC tools.
Addition:

This document applies to transportable diamond drills, intended to be connected to a liquid

system. Liquid system can include liquid from a pipe or container.
2 Normative references
Replace the existing text with the following new text:
This clause of Part 1 is applicable, except as follows.
Replacement:

IEC 61540:1997 , Electrical accessories − Portable residual current devices without integral

overcurrent protection for household and similar use (PRCDs)
IEC 61540:1997/AMD1:1998
___________

There exists a consolidated edition 1.1:1999 which includes IEC 61540:1997 and its Amendment 1:1998.

---------------------- Page: 5 ----------------------
– 4 – IEC 62841-3-6:2014/AMD1:2022
© IEC 2022
Addition:

IEC 61008-1:2010 , Residual current operated circuit-breakers without integral overcurrent

protection for household and similar uses (RCCBs) – Part 1: General rules
IEC 61008-1:2010/AMD1:2012
IEC 61008-1:2010/AMD2:2013

IEC 62841-1:2014, Electric motor-operated hand-held tools, transportable tools and lawn and

garden machinery – Safety – Part 1: General requirements
8 Marking and instructions
Delete the existing addition to 8.1.
Add the following new subclause:
8.3 Replacement of the sixth dash:

– ">25 kg" on each separable unit with a mass above 25 kg, in accordance with 8.14.2 a) 102).

Replace the existing text of 8.14.2 a), item 102), with the following new text:

102) Instruction to and information about how to mount the drill unit to the drill stand, if

separable;
Add the following new subclause:
8.14.3 Replacement:

If information about the mass or weight of the tool is provided, it shall either be the mass

specified in 5.17, or it shall be clear which part of the tool the mass refers to.

Compliance is checked by inspection.
14 Moisture resistance
Replace the existing text with the following new text:
This clause of Part 1 is applicable, except as follows.
14.3 Replacement:

Liquid systems or spillage of liquid shall not subject the user to an increased risk of electrical

shock.

If the tool is rated at least IPX4 in accordance with 14.2, this requirement is deemed to be

fulfilled.
___________

There exists a consolidated edition 3.2:2013 which includes IEC 61008-1:2010 and its Amendment 1:2012 and

Amendment 2:2013.
---------------------- Page: 6 ----------------------
IEC 62841-3-6:2014/AMD1:2022 – 5 –
© IEC 2022
Compliance is checked by the following test:

The residual current device, if any, shall be disabled during the test. Electrical components,

covers and other parts which can be removed without the aid of a tool are removed, except

those fulfilling the test of 21.22.

The tool is prepared with approximately 1,0 % NaCl solution in the following modes if applicable:

– as described in 8.14.2;

– the liquid container of the tool is completely filled, and a further quantity, equal to 15 % of

the capacity of the container, or 0,25 l, whichever is the greater, is poured in steadily over

a period of 60 s, while the tool is resting in its filling position in accordance with 8.14.2 d);

−10

– a detachable liquid container is filled completely and mounted and dismounted 10 times on

the tool.

In each applicable preparation, the tool is operated at rated voltage in each position consistent

with the instructions according to 8.14.2 b) for 1 min while monitoring the leakage current as in

Clause C.3.

For 3-phase diamond drills with a rated input exceeding 3 700 W, during the test the leakage

current shall not exceed:
– 5 mA for a, b and c in Figure C.2 in the closed position;

– 10 mA for the test repeated with each of the switches a, b, c in Figure C.2 open in turn, the

other two switches being closed.

For all other diamond drills, during the test the leakage current shall not exceed:

– 2 mA for a class II tool;
– 5 mA for a class I tool.

Following this test, the tool shall meet the electric strength test of Clause D.2 between live

parts and accessible parts after being allowed to dry for 24 h at ambient temperature.

14.3.101 Diamond drills which are intended to be used for drilling overhead in accordance

with 8.14.2 a) 104) and using a liquid collection device shall prevent electric shock due to

excessive liquid spillage.
Compliance is checked by the following test.

The drill unit runs vertically upwards at rated voltage under no-load condition with the liquid

collection device installed. If the liquid collection device is designed to be connected to a

liquid vacuum device, then such a device shall be attached. The test is conducted twice, the

drill being fitted once with the minimum and once with the maximum diameter of the diamond

core bit as specified for the liquid collection device in accordance with 8.14.2 a) 106).

The test arrangement is shown in Figure 102.

The liquid flow of approximately 1,0 % NaCl solution shall be in the range of 1 l/min to 1,5 l/min.

The running time shall be 15 min. The measuring time starts when the core bit is filled with

liquid.
During the test, the leakage current as in Clause C.3 is monitored.
---------------------- Page: 7 ----------------------
– 6 – IEC 62841-3-6:2014/AMD1:2022
© IEC 2022

For 3-phase diamond drills with a rated input exceeding 3 700 W, during the test the leakage

current shall not exceed:
– 5 mA for a, b and c in Figure C.2 in the closed position;

– 10 mA for the test repeated with each of the switches a, b, c in Figure C.2 open in turn, the

other two switches being closed.

For all other diamond drills, during the test the leakage current shall not exceed:

– 2 mA for a class II tool;
– 5 mA for a class I tool.

Following this test, the tool shall meet the electric strength test of Clause D.2 between live

parts and accessible parts after being allowed to dry for 24 h at ambient temperature.

14.4 Replacement:

Liquid systems shall not subject the user to an increased risk of electrical shock by

components not capable of withstanding the pressure during operation.
Compliance is checked by the following test.
The residual current device, if any, shall be disabled during the test.

The liquid system is closed and an approximately 1,0 % NaCl solution at a hydrostatic pressure

equal to twice the pressure stated in 8.14.2 d) 1) is applied for 1 h.

The tool is then placed for 1 min in all positions consistent with the instructions in accordance

with 8.14.2 b) while monitoring the leakage current as in Clause C.2.

For 3-phase diamond drills with a rated input exceeding 3 700 W, during the test the leakage

current shall not exceed:
– 5 mA for a, b and c in Figure C.2 in the closed position;

– 10 mA for the test repeated with each of the switches a, b, c in Figure C.2 open in turn, the

other two switches being closed.

For all other diamond drills, during the test the leakage current shall not exceed:

– 2 mA for a class II tool;
– 5 mA for a class I tool.

Following this test, the tool shall meet the electric strength test of Clause D.2 between live

parts and accessible parts after being allowed to dry for 24 h at ambient temperature.

14.5 Replacement:

Residual current devices used to provide protection from shock in the case of failure of the

liquid system shall comply with
– IEC 61540:1997; or
– alternatively for 3-phase tools, IEC 61008-1:2010
and shall meet the following requirements a) to c):

a) The RCD shall disconnect all mains conductors, but not the earth conductor if provided,

when the leakage exceeds
– 10 mA and with a maximum response of 300 ms; or
---------------------- Page: 8 ----------------------
IEC 62841-3-6:2014/AMD1:2022 – 7 –
© IEC 2022
– alternatively for 3-phase tools, 30 mA with a maximum response time of 300 ms.

NOTE 1 For 3-phase tools, the values are based on specified levels in IEC 61008-1:2010.

Compliance is checked by inspection and by the test of
– IEC 61540:1997,9.9.2 for single phase tools; or

– alternatively, IEC 61008-1:2010, 9.9.2 and IEC 61008-1/AMD2:2013, 9.9.2 for 3-phase

tools.

In addition, during the test, the earthing conductor shall not become disconnected.

b) The RCD shall be reliable for its intended use.

Compliance is checked at rated voltage by operating the residual current device under

conditions of simulated leakage as in a) above during conditions of locked rotor of the tool

for 50 cycles. The residual current device shall operate correctly for all cycles.

c) The RCD shall be installed such that it is unlikely to be removed during use or normal

maintenance.

This requirement is considered fulfilled if the residual current device is fixed to the tool or

the supply cord connected to the tool.

Where fitted in the supply cord, the residual current device shall be provided with type Y

attachment or type Z attachment for connection with the supply cord and
interconnection cord.
Compliance is checked by inspection.
NOTE 2 In Canada, the following conditions apply:
Replacement of the first paragraph:

Residual current devices used to provide protection from shock in the case of failure of the liquid system shall

comply with
– IEC 61540:1997; or
– alternatively for 3-phase tools, IEC 61008-1:2010 up to 440 V; or
– alternatively for 3-phase tools, CSA C22.2 No. 144 above 440 V;
and shall meet the following requirements a) to c).
NOTE 3 In the United States of America, the following conditions apply:
Replacement of the first paragraph:

Residual current devices used to provide protection from shock in the case of failure of the liquid system shall

comply with
– IEC 61540:1997; or
– alternatively for 3-phase tools, IEC 61008-1:2010 up to 440 V; or
– alternatively for 3-phase tools, UL 1053 above 440 V;
and shall meet the following requirements a) to c).
18 Abnormal operation
Replace the existing text with the following new text:
This clause of Part 1 is applicable, except as follows.
---------------------- Page: 9 ----------------------
– 8 – IEC 62841-3-6:2014/AMD1:2022
© IEC 2022
18.8 Replacement of Table 4:
Table 4 – Required performance levels
Type and purpose of SCF Minimum Performance
Level (PL)
Power switch – prevent unwanted switch-on a
Power switch – provide desired switch-off b
Provide desired direction of rotation Not an SCF
Any electronic control to pass the test of 18.3 a
Prevent exceeding thermal limits as in 18.4 and 18.5.3 a
Limiting device to comply with 19.103 c
19 Mechanical hazards
Add the following new subclause:
19.6 This subclause of Part 1 is not applicable.
21 Construction
Add the following new subclauses:
21.15 Replacement:
Tools employing liquid systems shall be either:
– of class III construction; or

– of class I or class II construction and be provided with a residual current device and

comply with 14.3, 14.4 and 14.5; or

– of class I or class II construction and be designed for use in combination with an isolating

transformer and comply with 14.3 and 14.4; or

– a class I tool that fulfils the requirements of at least IPX3 in accordance with IEC 60529:

1989, IEC 60529, AMD1:1999, IEC 60529, AMD2:2013 when it is operating and fulfils the

requirements of at least IPX5 in accordance with IEC 60529:1989, IEC 60529, AMD1:1999,

IEC 60529, AMD2:2013 when it is not operating. The enclosure shall not be required to be

opened during operation or user maintenance in accordance with 8.14.2.
Compliance is checked by inspection.
21.35 This subclause of Part 1 is not applicable.
23 Components
Replace the existing text with the following new text:
This clause of Part 1 is applicable, except as follows.
23.3 This subclause of Part 1 is not applicable.
---------------------- Page: 10 ----------------------
IEC 62841-3-6:2014/AMD1:2022 – 9 –
© IEC 2022
24 Supply connection and external flexible cords
Add the following new subclause:
24.5 Replacement of Table 8:
Table 8 – Minimum cross-sectional area and AWG sizes of supply cords
Rated current of the tool Nominal cross-sectional area
AWG size
Up to and including 6 0,75
Over 6 up to and including 10 1
Over 10 up to and including 12 17
Over 12 up to and including 13 1,5 16
Over 13 up to and including 16
Over 16 up to and including 18
2,5
Over 18 up to and including 25 12
Over 25 up to and including 32 4 10
Over 32 up to and including 40 6 8
Over 40 up to and including 63 10 4
AWG stands for American Wire Gauge as defined in ASTM B 258-02.
28 Creepage distances, clearances and distances through insulation
Replace the existing text with the following new text:
This clause of Part 1 is applicable, except as follows.
28.1 Replacement of the first paragraph:

Creepage distances and clearances shall not be less than the values in millimetres shown in

Table 12. The values specified in the table do not apply to cross-over points of motor windings.

For working voltages greater than 480 V, the requirements of IEC 60664-1 are applicable.

---------------------- Page: 11 ----------------------
– 10 – IEC 62841-3-6:2014/AMD1:2022
© IEC 2022
Add, before Annex I, the following new Annex C:
Annex C
(normative)
Leakage current
This annex of Part 1 is applicable, except as follows.
C.1 General
Replacement of the last paragraph:

The leakage current to accessible metal parts and metal foil shall not exceed the following

values, unless otherwise specified in the relevant clause of this document:
For 3-phase class I tools with a rated input exceeding 3 700 W:
– 5 mA;
For all other diamond drills
– for class I tools 0,75 mA;
– for class II tools 0,25 mA.
---------------------- Page: 12 ----------------------
IEC 62841-3-6:2014/AMD1:2022 – 11 –
© IEC 2022
Annex I – Measurement of noise and vibration emissions
I.2.4 Installation and mounting conditions of the power tools during noise tests
Replace the existing Table I.101 with the following new table:
Table I.101 – Test conditions for noise

Test set-up The drill stand with the drill unit is fixed on a concrete block (specified in Table I.102) having

the minimum dimensions 500 mm × 500 mm and 200 mm in height and supported on resilient

material. The fixing shall be done in accordance with 8.14.2 a).

The machine settings (speed, liquid supply, impact, etc.) shall be correctly adjusted for drilling

into concrete with the type and diameter of the core drill bit used for the test, as described in

accordance with 8.14.2 a).

The liquid collection device, if any, shall be in place during the operation of the tool as

described in accordance with 8.14.2 a).
The concrete block, its support and the tool shall be so oriented that
− the geometric centre of the tool is 1 m above the reflecting plane;
− the centre of the concrete block is located under the top microphone "5"; and

− the sides of the concrete block are parallel to the square formed by the microphones "1" to

"4".
Orientation Drilling vertically down into the concrete block.

The drilled core holes may overlap for the cases where the concrete block is thick enough to

enable dead end core holes.

Tool bit Core bit, for application with liquid supply, with approximately 75 % of the maximum core bit

diameter as specified in accordance with 8.14.2 a) 101).
The depth of hole shall be according to Table I.103.

Before the test the drill bit shall be sharpened on a sharpening plate and then one hole shall be

drilled to give the drill bit a normal sharpness.
The feed force applied to the tool shall be determined as follows:
Feed force

Drill with the tool increasing the feed force until either the speed is significantly reduced by the

load or a torque limiting device operates. Reduce the feed force slightly until a feed force is

reached enabling stable operation. Use this feed force for the test.

Preparation The start of drilling may cause problems, because the core bit is not guided. Prior to testing, the

holes shall be prepared to a depth of 5 mm.

Test cycle The measurement starts, when the drill bit has contact with the concrete block (in 5 mm depth),

and stops at a drilling depth specified in Table I.103, or when the maximum drilling depth of the

individual core drill bit is reached, whatever is less.
Bibliography
Replace the existing text with the following new text:
This bibliography of Part 1 is applicable, except as follows.
Addition:
CAN/CSA-C22.2 No. 144-M91 (R2011), Ground Fault Circuit Interrupters
UL 1053, Ground-Fault Sensing and Relaying Equipment
___________
---------------------- Page: 13 ----------------------
– 12 – IEC 62841-3-6:2014/AMD1:2022
© IEC 2022
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
OUTILS ÉLECTROPORTATIFS À MOTEUR, OUTILS PORTABLES
ET MACHINES POUR JARDINS ET PELOUSES –
SÉCURITÉ –
Partie 3-6: Exigences particulières pour les forets
diamantés transportables avec système liquide
AMENDEMENT 1
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

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travaux. L’IEC collabore étroitement avec l'Organisation Internationale de Normalisation (ISO), selon des

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3) Les Publications de l'IEC se présentent sous la forme de recommandations internationales et sont agréées

comme telles par les Comités nationaux de l'IEC. Tous les
...

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