IEC 60745-2-20:2003+AMD1:2008 CSV

Hand-held motor-operated electric tools - Safety - Part 2-20: Particular requirements for band saws

Deals with the safety of tools which the rated voltage is not more than 250 V for single-phase a.c. or d.c. tools and 440 V for three-phase a.c. tools. Supplements or modifies the corresponding clauses of IEC 60745-1 This consolidated version consists of the first edition (2003) and its amendment 1 (2008). Therefore, no need to order amendment in addition to this publication.

Outils électroportatifs à moteur - Sécurité - Partie 2-20: Règles particulières pour les scies à ruban

Traite de la sécurité des outils dont la tension assignée n'est pas supérieure à 250 V en courant monophasé alternatif ou courant continu et 440 V en courant alternatif triphasé. Complète ou modifie les articles correspondants de la CEI 60745-1.  Cette version consolidée comprend la première édition (2003) et son amendement 1 (2008). Il n'est donc pas nécessaire de commander l'amendement avec cette publication.

General Information

• Status: Published
• Publication Date: 16-Jul-2008
• ICS: 19.040 - Environmental testing
• ICS: 25.140.20 - Electric tools
• Technical Committee: TC 116 - Safety of motor-operated electric tools
• Current Stage: PPUB - Publication issued
• Start Date: 17-Jul-2008
• Completion Date: 17-Jul-2008

Overview

IEC 60745-2-20:2003+AMD1:2008 CSV is an International Electrotechnical Commission (IEC) standard that specifies the safety requirements for hand-held motor-operated electric band saws. As part of the IEC 60745 series, this standard provides supplemental and modified safety guidelines to those found in IEC 60745-1, ensuring risks specific to band saw tools are properly addressed. It applies to band saws with a rated voltage of up to 250 V for single-phase a.c. or d.c. tools, and up to 440 V for three-phase a.c. tools. This consolidated version includes the first edition (2003) and its amendment 1 (2008), representing the latest guidance for manufacturers, testing agencies, and safety evaluators working with portable electric band saws.

Key Topics

• Safety Requirements: Special focuses are given to guarding against electrical shock, mechanical hazards, and operator safety when handling band saws.
• Operational Markings: Proper labeling and user instructions are required, covering insulated gripping surfaces and scenarios where the band saw might contact hidden wiring.
• Mechanical Construction: Tools with high no-load speeds must not have lock-on switches, reducing accidental continuous operation.
• Voltage Ratings: The scope defines rated voltage limitations for single-phase, three-phase, and battery-powered tools, ensuring tool compatibility and safety across various electrical environments.
• Test Conditions: Procedures and conditions for verifying compliance with safety requirements set forth in the standard.
• Battery Tools: Additional guidelines for battery-powered band saws, especially when used with mains connection or non-isolated sources, to address unique risks related to their power supply.

Applications

Compliance with IEC 60745-2-20 is vital for:

• Manufacturers of hand-held electric band saws seeking certification and market access in regions adhering to IEC safety standards.
• Testing Laboratories verifying that new and updated tools meet international electrotechnical safety requirements.
• Procurement Specialists in construction, maintenance, and manufacturing sectors, ensuring that purchased equipment meets recognized safety benchmarks.
• Safety Inspectors and Regulatory Agencies overseeing workplace tool safety in environments where band saws are in daily use.
• Product Designers and Engineers aiming to integrate safety features from the earliest stages of tool development, especially regarding insulation, switch design, and preventing unintended operation.

Related Standards

For comprehensive tool safety and compliance, the following standards are relevant:

• IEC 60745-1: Hand-held motor-operated electric tools - Safety - General requirements. This is the foundational standard to which IEC 60745-2-20 refers and adds product-specific requirements.
• IEC 60335 Series: Safety of household and similar electrical appliances. Useful for broader context in electrical safety of power tools and appliances.
• ISO/IEC Directives, Part 2: Guidelines for drafting international standards, referenced for standard structuring.
• IEC Electropedia: A dictionary of electrical and electronic terms, aiding in compliance and understanding of terminology.

Adhering to IEC 60745-2-20 ensures that hand-held electric band saws are designed, manufactured, and tested to the highest levels of operator safety and reliable performance, supporting international market access and user confidence.

Standards Content (Sample)

IEC 60745-2-20
Edition 1.1 2008-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Hand-held motor-operated electric tools – Safety –
Part 2-20: Particular requirements for band saws

Outils électroportatifs à moteur – Sécurité –
Partie 2-20: Règles particulières pour les scies à ruban

IEC 60745-2-20:2003+A1:2008
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IEC 60745-2-20
Edition 1.1 2008-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Hand-held motor-operated electric tools – Safety –
Part 2-20: Particular requirements for band saws

Outils électroportatifs à moteur – Sécurité –
Partie 2-20: Règles particulières pour les scies à ruban

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CB
CODE PRIX
ICS 25.140.20 ISBN 2-8318-9869-2
– 2 – 60745-2-20 © IEC:2003+A1:2008
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –
Part 2-20: Particular requirements for band saws

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-
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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
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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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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
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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) 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 part of International Standard IEC 60745 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
This consolidated version of IEC 60745-2-20 consists of the first edition (2003) [documents
61F/508/FDIS and 61F/519/RVD] and its amendment 1 (2008) [documents 61F/738/FDIS and
61F/758/RVD].
The technical content is therefore identical to the base edition and its amendment and has
been prepared for user convenience.
It bears the edition number 1.1.
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.

60745-2-20 © IEC:2003+A1:2008 – 3 –
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This part 2 is to be used in conjunction with the latest edition of IEC 60745-1, Hand-held
motor-operated electric tools – Safety – Part 1: General requirements, and its amendments. It
was established on the basis of the third edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60745-1.
This part 2 supplements or modifies the corresponding clauses of IEC 60745-1, so as to
convert that publication into the IEC standard: Safety requirements for electric band saws.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. When this standard states “addition”, “modification” or “replacement”,
the relevant text in Part 1 is to be adapted accordingly.NOTE 2 The following numbering system is
used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– additional annexes are lettered AA, BB, etc.
NOTE 3 In this standard, the following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in smaller roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
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
and clarifications in Annex K.
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.
– 4 – 60745-2-20 © IEC:2003+A1:2008
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –
SAFETY –
Part 2-20: Particular requirements for band saws

1 Scope
This clause of Part 1 is applicable, except as follows:
Addition:
This standard applies to band saws.
2 Normative references
This clause of Part 1 is applicable.
3 Terms and definitions
This clause of Part 1 is applicable, except as follows:
3.101
band saw
tool equipped with an endless loop blade
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:
8.12.1.1 Addition:
– Hold power tool by insulated gripping surfaces, when performing an operation
where the cutting accessory may contact hidden wiring or its own cord. Cutting
accessories contacting a "live" wire may make exposed metal parts of the power tool "live"
and could give the operator an electric shock.

60745-2-20 © IEC:2003+A1:2008 – 5 –
9 Protection against access to live parts
This clause of Part 1 is applicable.
10 Starting
This clause of Part 1 is applicable.
11 Input and current
This clause of Part 1 is applicable.
12 Heating
This clause of Part 1 is applicable.
13 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.
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.

– 6 – 60745-2-20 © IEC:2003+A1:2008
21 Construction
This clause of Part 1 is applicable, except as follows:
...