IEC 60745-2-4:2002+AMD1:2008 CSV

Hand-held motor-operated electric tools - Safety - Part 2-4: Particular requirements for sanders and polishers other than disk type

Applies to sanders with the exception of all types of disc-type sanders, which are covered by IEC 60745-2-3. Tools covered include but are not limited to belt sanders, reciprocating sanders or polishers, orbital sanders or polishers, and random orbit sanders or polishers. This consolidated version consists of the second edition (2002) and its amendment 1 (2008). Therefore, no need to order amendment in addition to this publication.

Outils électroportatifs à moteur - Sécurité - Partie 2-4: Règles particulières pour les ponceuses et les lustreuses autres que du type à disque

S'applique aux ponceuses à l'exception de toutes les ponceuses du type à disque qui sont couvertes par la CEI 60745-2-3. Les outils concernés comprennent mais n'y sont pas limités, les ponceuses à bande, les ponceuses ou polisseuses vibrantes, les ponceuses ou polisseuses orbitales ainsi que les ponceuses orbitales spéciales.  Cette version consolidée comprend la deuxième édition (2002) et son amendement 1 (2008). Il n'est donc pas nécessaire de commander l'amendement avec cette publication.

General Information

• Status: Published
• Publication Date: 12-Aug-2008
• ICS: 25.080.50 - Grinding and polishing machines
• ICS: 25.140.20 - Electric tools
• ICS: 25.140.30 - Hand-operated tools
• Technical Committee: TC 116 - Safety of motor-operated electric tools
• Current Stage: PPUB - Publication issued
• Start Date: 13-Aug-2008
• Completion Date: 13-Aug-2008

Overview

IEC 60745-2-4:2002+AMD1:2008 CSV is an international standard developed by the International Electrotechnical Commission (IEC) dedicated to the safety of hand-held motor-operated electric tools, specifically focusing on sanders and polishers other than disk type. This consolidated standard combines the second edition published in 2002 with Amendment 1 from 2008, providing a comprehensive safety framework. It covers a range of tools such as belt sanders, reciprocating sanders or polishers, orbital sanders or polishers, and random orbit sanders or polishers, excluding all types of disk-type sanders, which are addressed separately under IEC 60745-2-3.

The purpose of IEC 60745-2-4 is to ensure these power tools meet important safety requirements, minimizing risks like electrical shock, mechanical hazards, and overheating during use. The document complements IEC 60745-1, which outlines general safety requirements for hand-held motor-operated tools, making it essential for manufacturers, designers, and safety inspectors involved with these tools.

Key Topics

This standard focuses on several key safety and design aspects for non-disk-type sanders and polishers:

• Scope and Classification
  Defines covered tool types and establishes safety classifications to ensure appropriate risk mitigation for different models.

• Marking and Instructions
  Includes specific requirements such as indicating the belt rotation direction on belt sanders to prevent misuse and potential injuries. It also requires safety warnings, like advising users to hold tools by insulated gripping surfaces to avoid electrical hazards caused by belt damage to cords.

• Construction and Mechanical Strength
  Sets criteria for tool construction materials and insulating features, especially noting the likelihood of belt sanders cutting their own cords, thus mandating insulated handles or barriers between metal parts and the surfaces users touch.

• Electrical Safety and Testing
  Enforces provisions against exposure to live parts, leakage current control, moisture resistance, electric strength, and overload protection of transformers and circuits.

• Endurance and Performance Tests
  Specifies endurance testing conditions with abrasive media or polishing bonnets under operational load to verify durability and safety over time.

• Annexes for Battery-Powered Tools
  Supplements the standard with clauses applicable to battery-operated tools and those with mains connection or non-isolated power sources, ensuring comprehensive coverage for cordless and corded variants.

Applications

IEC 60745-2-4 is essential in the design, manufacture, inspection, and certification of various hand-held sanding and polishing tools excluding disk types. Its practical applications include:

• Manufacturers use this standard to design safe electric sanders and polishers that comply with international safety benchmarks.

• Safety Inspectors and Certification Bodies apply this standard to assess compliance and certify tool safety before market release.

• Product Developers and Engineers integrate the requirements during product development to reduce electrical and mechanical hazards and improve tool reliability.

• Training and Maintenance programs utilize the standard’s guidelines to educate users on correct operation and maintenance practices to prolong tool life and ensure user safety.

• Regulatory Authorities reference this standard when developing national or regional regulations concerning electrical power tools.

Related Standards

To fully comply with international safety requirements for hand-held electric tools, IEC 60745-2-4 should be used in conjunction with the following:

• IEC 60745-1: General requirements for safety of hand-held motor-operated electric tools - provides foundational safety principles and testing methods.

• IEC 60745-2-3: Particular requirements for grinders, polishers, and disk-type sanders - covers disk-type tools excluded from Part 2-4.

• Other parts within the IEC 60745 series addressing specific tool types such as drills (Part 2-1), screwdrivers (Part 2-2), circular saws (Part 2-5), and chain saws (Part 2-13).

These interconnected standards support harmonized safety regulations and quality assurance in the design and manufacture of various power tools worldwide.

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Keywords: IEC 60745-2-4, hand-held electric tools safety, non-disk sanders, belt sanders safety, orbital sanders requirements, motor-operated polishers, power tool standards, electrical safety, mechanical safety, tool endurance testing, international electrotechnical standards.

Standards Content (Sample)

IEC 60745-2-4
Edition 2.1 2008-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Hand-held motor-operated electric tools – Safety –
Part 2-4: Particular requirements for sanders and polishers other than disk type

Outils électroportatifs à moteur – Sécurité –
Partie 2-4: Règles particulières pour les ponceuses et les lustreuses autres que
du type à disque
IEC 60745-2-4:2002+A1:2008
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IEC 60745-2-4
Edition 2.1 2008-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Hand-held motor-operated electric tools – Safety –
Part 2-4: Particular requirements for sanders and polishers other than disk type

Outils électroportatifs à moteur – Sécurité –
Partie 2-4: Règles particulières pour les ponceuses et les lustreuses autres que
du type à disque
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CC
CODE PRIX
ICS 25.140.20; 24.140.30; 25.080.50 ISBN 2-8318-9909-5
– 2 – 60745-2-4 © IEC:2002+A1:2008
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –
Part 2-4: Particular requirements for sanders and polishers
other than disk type
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 60745-2-4 has been prepared by subcommittee 61F: Safety of
hand-held motor-operated electric tools, of IEC technical committee 61: Safety of household
and similar electrical appliances
Main changes include Clause 3: Definitions, introducing detailed definitions for the tools in the
scope of this part 2, and Clause 17: Endurance, with clearer specifications. Subclause 20.101
has been removed, as requirements for tools with water supply are now covered by Part 1.
This consolidated version of IEC 60745-2-4 consists of the second edition (2002) [documents
61F/462/FDIS and 61F/486/RVD] and its amendment 1 (2008) [documents 61F/733/FDIS and
61F/753/RVD].
The technical content is therefore identical to the base edition and its amendment and has
been prepared for user convenience.

60745-2-4 © IEC:2002+A1:2008 – 3 –
It bears the edition number 2.1.
A vertical line in the margin shows where the base publication has been modified by
amendment 1.
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2-4 is to be used in conjunction with the third edition of IEC 60745-1: Safety of
hand-held motor-operated electric tools – Part 1: General requirements. When this standard
states “addition”, “modification” or “replacement”, the relevant text in Part 1 is to be adapted
accordingly.
With amendment 1, this Part 2 is established on the basis of the fourth edition (2006) of
IEC 60745-1, Hand-held motor-operated electric tools – Safety – Part 1: General
requirements.
Main changes include editorial modifications to match with the fourth edition of IEC 60745-1,
addition of a new safety warning to Clause 8: Marking and instructions, and clarifications in
Annex K.
NOTE In this standard, the following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in smaller roman type.
Subclauses, tables and figures which are additional to those in Part 1 are numbered starting from 101; additional
annexes are lettered AA, BB, etc.
IEC 60745 consists of the following parts, under the general title Hand-held motor-operated
electric tools – Safety:
Part 1: General requirements
Part 2-1: Particular requirements for drills and impact drills
Part 2-2: Particular requirements for screwdrivers and impact wrenches
Part 2-3: Particular requirements for grinders, polishers and disk-type sanders
Part 2-4: Particular requirements for sanders and polishers other than disk type
Part 2-5: Particular requirements for circular saws and circular knives
Part 2-6: Particular requirements for hammers
Part 2-7: Particular requirements for spray guns for non-flammable liquids
Part 2-8: Particular requirements for shears and nibblers
Part 2-9: Particular requirements for tappers
Part 2-11: Particular requirements for reciprocating saws (jig and sabre saws)
Part 2-12: Particular requirements for concrete vibrators
Part 2-13: Particular requirements for chain saws
Part 2-14: Particular requirements for planers
Part 2-15: Particular requirements for hedge trimmers
Part 2-16: Particular requirements for tackers
Part 2-17: Particular requirements for routers and trimmers
Part 2-18: Particular requirements for strapping tools
Part 2-19: Particular requirements for jointers
Part 2-20: Particular requirements for band saws
Part 2-21: Particular requirements for drain cleaners

– 4 – 60745-2-4 © IEC:2002+A1:2008
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date,
the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
60745-2-4 © IEC:2002+A1:2008 – 5 –
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –
Part 2-4: Particular requirements for sanders and polishers
other than disk type
1 Scope
This clause of Part 1 is applicable, except as follows:
Addition:
This standard applies to sanders and polishers with the exception of all types of disc-type
tools, which are covered by IEC 60745-2-3.
Tools covered by this standard include but are not limited to belt sanders, reciprocating
sanders or polishers, orbital sanders or polishers, and random orbit sanders or polishers.
2 Normative references
This clause of Part 1 is applicable.
3 Terms and definitions
This clause of Part 1 is applicable, except as follows:
Additional definitions:
3.101
sander
tool intended to remove surface material using an abrasive medium
3.102
polisher
tool equipped with a disk or pad intended for polishing
3.103
belt sander
sander equipped with an endless abrasive belt
3.104
orbital sander or polisher (oscillating sander or polisher)
sander or polisher equipped with a plate, which performs an orbital oscillating motion parallel
to the work surface
3.105
random orbit sander or polisher
sander or polisher equipped with a plate positioned eccentrically on the driving spindle which
can rotate freely around its axis parallel to the work surface

– 6 – 60745-2-4 © IEC:2002+A1:2008
3.106
reciprocating sander or polisher
sander or polisher equipped with a plate which performs a reciprocating motion parallel to the
work surface
4 General requirements
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable.
6 Void
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
For belt sanders, the direction of rotation of the belt shall be indicated on the tool by an arrow,
raised or sunk, or by any other means no less visible and indelible.
8.12.1.1 Addition:
– Hold power tool by insulated gripping surfaces, because the belt may contact its
own cord. Cutting a "live" wire may make exposed metal parts of the power tool "live" and
could give the operator an electric shock.
NOTE The above safety warning applies only to belt sanders and may be omitted for other types of sanders.
9 Protection against access to live parts
This clause of Part 1 is applicable.
10 Starting
This clause of Part 1 is applicable.
11 Input and current
This clause of Part 1 is applicable.
12 Heating
This clause of Part 1 is applicable.

60745-2-4 © IEC:2002+A1:2008 – 7 –
13 Leakage current
This clause of Part 1 is applicable.
14 Moisture resistance
This clause of Part 1 is applicable.
15 Electric strength
This clause of Part 1 is applicable.
16 Overload protection of transformers and associated circuits
This clause of Part 1 is applicable.
17 Endurance
This clause of Part 1 is applicable, except as follows:
17.2 Replacement of the fifth paragraph, except for belt sanders:
Orbital sanders and polishers, random orbit sanders and polishers, and reciprocating sanders
and polishers are operated while the platen, fitted with abrasive paper in reverse position or a
polishing bonnet as applicable, is resting under the weight of the sander or polisher on a steel
plate. The abrasive paper should be replaced as required to avoid direct contact between
platen and steel plate. These tools are only tested in the upright position where the platen is
horizontal.
18 Abnormal operation
This clause of Part 1 is applicable.
19 Mechanical hazards
This clause of Part 1 is applicable.
20 Mechanical strength
This clause of Part 1 is applicable, except as follows:
20.5 Replacement of the first paragraph:
Belt sanders are likely to cut their own cord; therefore, handles and grasping surfaces, as
specified in the instruction manual in accordance with 8.12.2 b), shall have adequate
mechanical strength in order to provide insulation between the grasping area and the output
shaft.
– 8 – 60745-2-4 © IEC:2002+A1:2008
21 Construction
This clause of Part 1 is applicable, except as follows:
21.32 Replacement of the first paragraph:
Belt sanders are likely to cut their own cord; therefore, handles and grasping surfaces, as
specified in the instruction manual in accordance with 8.12.2 b), shall be formed of insulating
material or, when of metal, shall be either adequately covered by insulating material or their
accessible parts shall be separated by insulating barrier(s) form accessible metal parts that
may become live by the output shaft. These insulating barriers are not to be regarded as
basic, supplementary, or reinforced insulation.
22 Internal wiring
This clause of Part 1 is applicable.
23 Components
This clause of Part 1 is applicable.
24 Supply connection and external flexible cords
This clause of Part 1 is applicable.
25 Terminals
...