IEC 60745-1:2001

Hand-held motor-operated electric tools - Safety - Part 1: General requirements

Deals with the safety of hand-held motor-operated or magnetically driven electric tools. The rated voltage of the tools is not more than 250 V for single-phase a.c. or d.c., and 440 V for three-phase a.c. tools. It covers tools with an electric heating element. It also covers hand-held tools which can be mounted on a support for use as fixed tools. This standard does not apply to: tools used in explosive atmospheres, tools for preparing and processing food, tools for medical purposes (see IEC 60611), and heating tools which are covered by IEC 60335-2-45.

General Information

• Status: Published
• Publication Date: 12-Aug-2003
• ICS: 25.140.20 - Electric tools
• Technical Committee: TC 116 - Safety of motor-operated electric tools
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 18-Apr-2006

Relations

• Amended By: IEC 60745-1:2001/AMD1:2002 - Amendment 1 - Hand-held motor-operated electric tools - Safety - Part 1: General requirements
• Effective Date: 05-Sep-2023
• Amended By: IEC 60745-1:2001/AMD2:2003 - Amendment 2 - Hand-held motor-operated electric tools - Safety - Part 1: General requirements
• Effective Date: 05-Sep-2023
• Corrected By: IEC 60745-1:2001/COR1:2003 - Corrigendum 1 - Hand-held motor-operated electric tools - Safety - Part 1: General requirements
• Effective Date: 05-Sep-2023
• Revised: IEC 60745-1:2006 - Hand-held motor-operated electric tools - Safety - Part 1: General requirements
• Effective Date: 05-Sep-2023
• Revises: IEC 60745-1:1997 - Safety of hand-held motor-operated electric tools - Part 1: General requirements
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
60745-1
Third edition
2001-12
Hand-held motor-operated electric tools –
Safety –
Part 1:
General requirements
Outils électroportatifs à moteur –
Sécurité –
Partie 1:
Règles générales
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.

Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,

edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
Further information on IEC publications
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology. Information relating to
this publication, including its validity, is available in the IEC Catalogue of
publications (see below) in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is also available from the following:
• IEC Web Site (www.iec.ch)
• Catalogue of IEC publications
The on-line catalogue on the IEC web site (www.iec.ch/catlg-e.htm) enables
you to search by a variety of criteria including text searches, technical
committees and date of publication. On-line information is also available on
recently issued publications, withdrawn and replaced publications, as well as
corrigenda.
• IEC Just Published
This summary of recently issued publications (www.iec.ch/JP.htm) is also
available by email. Please contact the Customer Service Centre (see below) for
further information.
• Customer Service Centre
If you have any questions regarding this publication or need further assistance,
please contact the Customer Service Centre:
Email: [e-mail]
Tel: [phone]
Fax: [phone]
INTERNATIONAL IEC
STANDARD
60745-1
Third edition
2001-12
Hand-held motor-operated electric tools –
Safety –
Part 1:
General requirements
Outils électroportatifs à moteur –
Sécurité –
Partie 1:
Règles générales
 IEC 2001  Copyright - all rights reserved
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 the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
XD
International Electrotechnical Commission
For price, see current catalogue

– 2 – 60745-1  IEC:2001(E)
CONTENTS
FOREWORD.4

INTRODUCTION.6

1 Scope.7

2 Normative references.7

3 Definitions .9

4 General requirements .15

5 General conditions for the tests.15
6 Void.17
7 Classification .17
8 Marking and instructions .17
9 Protection against access to live parts .24
10 Starting.26
11 Input and current .26
12 Heating.26
13 Leakage current.30
14 Moisture resistance.31
15 Electric strength.33
16 Overload protection of transformers and associated circuits .35
17 Endurance .35
18 Abnormal operation.36
19 Mechanical hazards .39
20 Mechanical strength.40
21 Construction .41
22 Internal wiring .48
23 Components .49
24 Supply connection and external flexible cords .52
25 Terminals for external conductors .58
26 Provision for earthing.61

27 Screws and connections .63
28 Creepage distances, clearances and distances through insulation .65
29 Resistance to heat, fire and tracking .69
30 Resistance to rusting .70
31 Radiation, toxicity and similar hazards.71

60745-1  IEC:2001(E) – 3 –
Annex A (normative) Measurement of creepage distances and clearances.79

Annex B (normative) Motors not isolated from the supply mains and having basic

insulation not designed for the rated voltage of the tool.84

Annex C (normative) Circuit for measuring leakage currents.86

Annex D (normative) Burning test.88

Annex E (normative) Glow-wire test.89

Annex F (normative) Needle-flame test.90

Annex G (normative) Proof tracking test .91

Annex H Void .92
Annex I (normative) Switches .93
Annex J (informative) Selection and sequence of the tests of clause 29 .94
Bibliography .95
Figure 1 – Standard test finger .72
Figure 2 − Test pin .73
Figure 3 − Diagram for leakage current measurement at operating temperature for single-
phase connection and three-phase tools suitable for single-phase supply of class II tools .73
Figure 4 − Diagram for leakage current measurement at operating temperature for
three-phase connection.74
Figure 5 − Ball-pressure test apparatus .74
Figure 6 − Schematic representation of cord anchorages.75
Figure 7 – Test fingernail .76
Figure 8 – Examples of parts of earthing terminals .77
Figure 9 − Flexing test apparatus .78
Figure A.1a – Clearance gap for parallel sided and V-shaped groove.80
Figure A.1b – Clearance gap for rib and uncemented joint with groove.81
Figure A.1c – Clearance gap for uncemented joint and diverging-sided groove .82
Figure A.1d – Clearance gap between wall and screw.83
Figure B.1 – Simulation of defects .85
Figure C.1 – Circuit for measuring leakage currents .87

Table 1 – Maximum normal temperature rises .28
Table 2 – Test voltages .33
Table 3 – Maximum winding temperature.38
Table 4 – Impact energies .40
Table 5 – Test torques .41
Table 6 – Minimum cross-sectional area of supply cord .53
Table 7 – Pull and torque value .55
Table 8 – Nominal cross-sectional area of conductors .59
Table 9 – Torque for testing screws and nuts .64
Table 10 – Minimum creepage distances and clearances (in millimetres) .66

– 4 – 60745-1  IEC:2001(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION

___________
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –

SAFETY –
Part 1: General requirements
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60745-1 has been prepared by sub-committee 61F: Safety of hand-
held motor-operated electric tools, of IEC technical committee 61: Safety of household and
similar electrical appliances.
This third edition cancels and replaces the second edition published in 1997 and constitutes a
technical revision.
The text of this standard is based on the following documents:
FDIS Report on voting
61F/422/FDIS 61F/427/RVD
Full information on the voting for the appr
...

INTERNATIONAL IEC
STANDARD
60745-1
Edition 3.2
2003-08
Edition 3:2001 consolidated with amendments 1:2002 and 2:2003
Hand-held motor-operated electric tools –
Safety –
Part 1:
General requirements
Outils électroportatifs à moteur –
Sécurité –
Partie 1:
Règles générales
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the

60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.

Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,

edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the

base publication incorporating amendment 1 and the base publication incorporating

amendments 1 and 2.
Further information on IEC publications
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology. Information relating to
this publication, including its validity, is available in the IEC Catalogue of
publications (see below) in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is also available from the following:
• IEC Web Site (www.iec.ch)
• Catalogue of IEC publications
The on-line catalogue on the IEC web site (www.iec.ch/searchpub) enables you to
search by a variety of criteria including text searches, technical committees
and date of publication. On-line information is also available on recently issued
publications, withdrawn and replaced publications, as well as corrigenda.
• IEC Just Published
This summary of recently issued publications (www.iec.ch/online_news/ justpub)
is also available by email. Please contact the Customer Service Centre (see
below) for further information.
• Customer Service Centre
If you have any questions regarding this publication or need further assistance,
please contact the Customer Service Centre:

Email: [e-mail]
Tel: [phone]
Fax: [phone]
INTERNATIONAL IEC
STANDARD
60745-1
Edition 3.2
2003-08
Edition 3:2001 consolidated with amendments 1:2002 and 2:2003
Hand-held motor-operated electric tools –
Safety –
Part 1:
General requirements
Outils électroportatifs à moteur –
Sécurité –
Partie 1:
Règles générales
 IEC 2003  Copyright - all rights reserved
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 the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail]  Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
XE
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 60745-1  IEC:2001+A1:2002

+A2:2003(E)
CONTENTS
FOREWORD . 4

INTRODUCTION .6

1 Scope . 7

2 Normative references. 8

3 Definitions. 9

4 General requirements.15

5 General conditions for the tests.15
6 Void .17
7 Classification .17
8 Marking and instructions .17
9 Protection against access to live parts.24
10 Starting.26
11 Input and current.26
12 Heating .26
13 Leakage current.30
14 Moisture resistance.31
15 Electric strength.33
16 Overload protection of transformers and associated circuits .35
17 Endurance .35
18 Abnormal operation.36
19 Mechanical hazards .39
20 Mechanical strength .40
21 Construction .41
22 Internal wiring .49
23 Components .50
24 Supply connection and external flexible cords.52
25 Terminals for external conductors .59
26 Provision for earthing .62
27 Screws and connections.64

28 Creepage distances, clearances and distances through insulation .66
29 Resistance to heat, fire and tracking.69
30 Resistance to rusting.71
31 Radiation, toxicity and similar hazards.71
Annex A (normative) Measurement of creepage distances and clearances.79
Annex B (normative) Motors not isolated from the supply mains
and having basic insulation not designed for the rated voltage of the tool .84
Annex C (normative) Circuit for measuring leakage currents .86
Annex D (normative) Burning test .88
Annex E (normative) Glow-wire test.89
Annex F (normative) Needle-flame test.90

60745-1  IEC:2001+A1:2002 – 3 –

+A2:2003(E)
Annex G (normative) Proof tracking test .91

Annex H Void .92

Annex I (normative) Switches .93

Annex J (informative) Selection and sequence of the tests of clause 29 .94

Annex K (normative) Battery tools and battery packs .95

Annex L (normative) Battery tools and battery packs provided

with mains connection or non-isolated sources .106

Bibliography .116

Figure 1 – Standard test finger .72
Figure 2 − Test pin .73
Figure 3 − Diagram for leakage current measurement at operating temperature
for single-phase connection and three-phase tools suitable for single-phase supply .73
Figure 4 − Diagram for leakage current measurement at operating temperature
for three-phase connection .74
Figure 5 − Ball-pressure test apparatus .74
Figure 6 − Schematic representation of cord anchorages .75
Figure 7 – Test fingernail.76
Figure 8 – Examples of parts of earthing terminals.77
Figure 9 − Flexing test apparatus.78
Figure A.1a – Clearance gap for parallel sided and V-shaped groove .80
Figure A.1b – Clearance gap for rib and uncemented joint with groove.81
Figure A.1c – Clearance gap for uncemented joint and diverging-sided groove.82
Figure A.1d – Clearance gap between wall and screw .83
Figure B.1 – Simulation of defects .85
Figure C.1 – Circuit for measuring leakage currents.87
Figure K.1 – Measurement of clearances .105
Figure L.1 – Measurement of clearances .115
Table 1 – Maximum normal temperature rises.28
Table 2 – Test voltages .34
Table 3 – Maximum winding temperature.38
Table 4 – Impact energies .41

Table 5 – Test torques.41
Table 6 – Minimum cross-sectional area of supply cord.54
Table 7 – Pull and torque value .56
Table 8 – Nominal cross-sectional area of conductors.60
Table 9 – Torque for testing screws and nuts.65
Table 10 – Minimum creepage distances and clearances .67
Table K.1 – Maximum normal temperature rises for battery tools .99
Table K.2 – Minimum creepage distances and clearances between parts of opposite polarity.103
Table L.1 – Minimum creepage distances and clearances between parts of opposite
polarity .114

– 4 – 60745-1  IEC:2001+A1:2002

+A2:2003(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION

___________
HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS –

SAFETY –
Part 1: General requirements
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, 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
...