IEC 62841-3-4:2016/AMD2:2024

Amendment 2 - Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 3-4: Particular requirements for transportable bench grinders

IEC 62841-3-4 ED1 AMD2: 2023
Add, at the end of Clause 1, the following new paragraph:
This document does not apply to tools intended for lapidary grinding operations.

Amendement 2 - Outils électroportatifs à moteur, outils portables et machines pour jardins et pelouses - Sécurité - Partie 3-4: Exigences particulières pour les tourets à meuler transportables

General Information

• Status: Published
• Publication Date: 25-Feb-2024
• ICS: 25.140.20 - Electric tools
• Technical Committee: TC 116 - Safety of motor-operated electric tools
• Drafting Committee: WG 9 - TC 116/WG 9
• Current Stage: PPUB - Publication issued
• Start Date: 26-Feb-2024
• Completion Date: 02-Feb-2024

Relations

• Amends: IEC 62841-3-4:2016 - Electric motor-operated hand-held tools, transportable tools and lawn and garden machinery - Safety - Part 3-4: Particular requirements for transportable bench grinders
• Effective Date: 05-Sep-2023

Overview

IEC 62841-3-4:2016/AMD2:2024 is Amendment 2 to the international standard IEC 62841-3-4, addressing particular safety requirements for electric motor-operated transportable bench grinders. Published by the International Electrotechnical Commission (IEC), this amendment further clarifies and updates the requirements for ensuring operator protection when using bench grinders in industrial, commercial, and workshop environments. This amendment specifically notes that it does not apply to tools intended for lapidary grinding operations.

Staying compliant with this amendment is crucial for manufacturers, importers, and users of transportable bench grinders to meet recognized international safety benchmarks for machinery.

Key Topics

• Scope Exclusion: The amendment explicitly clarifies that the requirements do not cover lapidary grinding operations, ensuring more precise standard application.
• Updated Definitions: Additional definitions have been included for:
  • Brush guard: Partially encloses a wire brush to protect the operator.
  • Wheel guard: Partially encloses the grinding wheel for user safety.
• Markings and Instructions: The amendment highlights the need for:
  • Clear warnings specifying the use of correct accessories and guards.
  • Instructions outlining which guard should be used with each recommended accessory, helping prevent misuse.
• Mechanical Hazard Protection:
  • The amendment reinforces the need to position or enclose moving and dangerous parts, other than accessories, to provide adequate protection from personal injury.
  • Specific provisions require the use of wheel guards for grinding wheels, brush guards for wire brushes, and transparent screens as appropriate.
  • Guards must be designed so the attachment of an accessory larger than 1.07 times the tool's maximum marked diameter is prevented, and should not be removable without a tool.
  • Clear requirements on the design, coverage, and opening angles of guards (e.g., opening angles not exceeding 65° above horizontal and total openings not exceeding 90°, specific to grinding wheel guards).

Applications

The amended requirements in IEC 62841-3-4:2016/AMD2:2024 have direct relevance for:

• Manufacturers of Bench Grinders: Ensuring product compliance with the latest international safety criteria and reducing liability risks.
• Importers and Distributors: Verifying that all bench grinders brought to market meet updated IEC requirements.
• Certification Bodies: Conducting conformity assessments based on the latest standards, including guard requirements and marking instructions.
• Workshops and Industries Using Bench Grinders: Enhancing operator safety by implementing compliant equipment and following updated usage guidelines.
• Health and Safety Officers: Updating workplace safety protocols and staff training to reflect new safety information around correct accessory and guard usage on bench grinders.
• Product Designers: Designing new models that adhere to the clarified requirements to ensure both compliance and user protection.

Related Standards

For comprehensive compliance and safety, the following international standards are relevant alongside IEC 62841-3-4:2016/AMD2:2024:

• IEC 62841 Series: Covering safety standards for electric motor-operated hand-held tools, transportable tools, and lawn and garden machinery.
  • IEC 62841-1: General requirements for the series
  • IEC 62841-3-1: Safety requirements for transportable saws
• ISO/IEC Directives: Methodologies for drafting and maintaining international standards.
• IEC 60204-1: Safety of machinery - Electrical equipment of machines.
• ISO 13849: Safety of machinery - Safety-related parts of control systems.

Compliance with these related standards helps to provide a robust safety framework for all motor-operated machinery in the workplace.

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Keywords: IEC 62841-3-4:2016/AMD2:2024, bench grinder safety, transportable bench grinder, IEC standards for grinders, mechanical hazard protection, grinding wheel guard, brush guard, safety requirements, machinery compliance, operator protection.

Standards Content (Sample)

IEC 62841-3-4 ®
Edition 1.0 2024-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 2
AMENDEMENT 2
Electric motor-operated hand-held tools, transportable tools and lawn and
garden machinery – Safety –
Part 3-4: Particular requirements for transportable bench grinders

Outils électroportatifs à moteur, outils portables et machines pour jardins et
pelouses – Sécurité –
Partie 3-4: Exigences particulières pour les tourets à meuler transportables
IEC 62841-3-4:2016-02/AMD2:2024-02(en-fr)

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IEC 62841-3-4 ®
Edition 1.0 2024-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 2
AMENDEMENT 2
Electric motor-operated hand-held tools, transportable tools and lawn and

garden machinery – Safety –
Part 3-4: Particular requirements for transportable bench grinders

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

pelouses – Sécurité –
Partie 3-4: Exigences particulières pour les tourets à meuler transportables

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.20 ISBN 978-2-8322-8159-8

– 2 – IEC 62841-3-4:2016/AMD2:2024
© IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED HAND-HELD TOOLS, TRANSPORTABLE
TOOLS AND LAWN AND GARDEN MACHINERY – SAFETY –

Part 3-4: Particular requirements for transportable bench grinders

AMENDMENT 2
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,
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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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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
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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
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6) All users should ensure that they have the latest edition of this publication.
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expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
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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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
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the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
Amendment 2 to IEC 62841-3-4:2016 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
116/693/FDIS 116/731/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
© IEC 2024
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/publications/.
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 webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
_____________
1 Scope
Add, at the end of Clause 1, the following new paragraph:
This document does not apply to tools intended for lapidary grinding operations.
3 Terms and definitions
Add, at the end of Clause 3, the following new definitions:
3.104
brush guard
guard which partly encloses the wire brush and gives protection to the operator
3.105
wheel guard
guard which partly encloses the type 1 grinding wheel and gives protection to the operator
8 Marking and instructions
Add, at the end of 8.14.1.101, the following new warning:
e) Use only accessories that are specified for your power tool and the specific guard
designed for the selected accessory. Accessories for which the power tool was not
designed cannot be adequately guarded.
Add, at the end of 8.14.2 a), the following new instruction:
105) Information about the correct guard to be used for each recommended accessory.

– 4 – IEC 62841-3-4:2016/AMD2:2024
© IEC 2024
19 Mechanical hazards
Replace the existing text of 19.1 with the following new text:
19.1 Replacement of the first paragraph:
Moving and dangerous parts other than the accessories shall be so positioned or enclosed to
provide adequate protection against personal injury. The guarding of accessories is covered
in 19.1.101 through 19.1.104.
For grinding wheels, a wheel guard in accordance with 19.1.101 and 19.1.102, a work rest in
accordance with 19.102 and a transparent screen in accordance with 19.1.103 shall be
provided.
For wire brushes, a brush guard in accordance with 19.1.104 and a transparent screen in
accordance with 19.1.103 shall be provided. For brush guards where the angle α as shown in
Figure 107
...