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IEC 60445:2010

(Main)

Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors

Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors

IEC 60445:2010 applies to the identification and marking of terminals of electrical equipment such as resistors, fuses, relays, contactors, transformers, rotating machines and, wherever applicable, to combinations of such equipment (e.g. assemblies), and also applies to the identification of terminations of certain designated conductors. It also provides general rules for the use of certain colours or alphanumeric notations to identify conductors with the aim of avoiding ambiguity and ensuring safe operation. These conductor colours or alphanumeric notations are intended to be applied in cables or cores, busbars, electrical equipment and installations. This fifth edition is a merged version of IEC 60445 and IEC 60446, and cancels and replaces the fourth edition of IEC 60445, published in 2006, and the fourth edition of IEC 60446, published in 2007. This edition includes the following significant technical changes with respect to the previous edition:
- addition of new definitions in Clause 3;
- revision of some clauses to use words from reference IEC standards. These revisions did not change any technical requirements but to clarify the wording;
- addition of Annex B (informative) "List of notes concerning certain countries". It has the status of a horizontal standard in accordance with IEC Guide 104.

Principes fondamentaux et de sécurité pour les interfaces homme-machines, le marquage et l'identification - Identification des bornes de matériels, des extrémités de conducteurs et des conducteurs

La CEI 60445:2010 s'applique à l'identification et au marquage des bornes de matériels électriques, tels que résistances, coupe-circuits à fusibles, relais, contacteurs, transformateurs, machines tournantes et, chaque fois que cela est possible, à des combinaisons de tels matériels (par exemple des ensembles) et s'applique aussi à l'identification des extrémités de certains conducteurs désignés. Elle prévoit également des règles générales concernant l'utilisation de certaines couleurs ou de certains caractères alphanumériques pour identifier les conducteurs dans le but d'éviter toute ambiguïté et de garantir la sécurité de fonctionnement. Ces couleurs ou ces caractères alphanumériques destinés aux conducteurs doivent être appliqués aux câbles ou aux noyaux, aux barres omnibus, aux matériels et aux installations électriques. Cette cinquième édition qui fusionne la CEI 60445 et la CEI 60446, annule et remplace la quatrième édition de la CEI 60445, publiée en 2006, et la quatrième édition de la CEI 60446, publiée en 2007. Cette édition inclut les modifications techniques importantes suivantes par rapport à l'édition précédente:
- l'adjonction de nouvelles définitions à l'Article 3;
- la révision de certains articles afin d'utiliser la terminologie des normes CEI de référence. Ces révisions ne modifient aucune exigence technique, mais en clarifient la formulation;
- l'adjonction de l'Annexe B (informative) "Liste des notes concernant certains pays". Elle a le statut de norme horizontale conformément au IEC Guide 104.

General Information

Status
Published
Publication Date
26-Aug-2010
ICS
29.020 - Electrical engineering in general
Technical Committee
TC 3 - Documentation, graphical symbols and representations of technical information
Drafting Committee
MT 11 - TC 2/MT 11
Current Stage
DELPUB - Deleted Publication
Completion Date
04-Aug-2017
Ref Project

Relations

Replaces
IEC 60446:2007 - Basic and safety principles for man-machine interface, marking and identification - Identification of conductors by colours or alphanumerics
Effective Date
05-Sep-2023
Revised
IEC 60445:2017 - Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors
Effective Date
05-Sep-2023
Revises
IEC 60445:2006 - Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals and conductor terminations
Effective Date
05-Sep-2023

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IEC 60445:2010 - Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors Released:8/27/2010IEC 60445:2010 - Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors Released:8/27/2010
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IEC 60445:2010 - Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors Released:8/27/2010
English and French language
49 pages
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IEC 60445 ®
Edition 5.0 2010-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ
Basic and safety principles for man-machine interface, marking and
identification –
Identification of equipment terminals, conductor terminations and conductors

Principes fondamentaux et de sécurité pour les interfaces homme-machines, le
marquage et l’identification –
Identification des bornes de matériels, des extrémités de conducteurs et des
conducteurs
All rights reserved. Unless otherwise specified, 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 either IEC or
IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: inmail@iec.ch
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
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A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
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texte, comité d’études,…). Il donne aussi des informations sur les projets et les publications retirées ou remplacées.
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Restez informé sur les nouvelles publications de la CEI. Just Published détaille deux fois par mois les nouvelles
publications parues. Disponible en-ligne et aussi par email.
ƒ Electropedia: www.electropedia.org
Le premier dictionnaire en ligne au monde de termes électroniques et électriques. Il contient plus de 20 000 termes et
définitions en anglais et en français, ainsi que les termes équivalents dans les langues additionnelles. Egalement appelé
Vocabulaire Electrotechnique International en ligne.
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Si vous désirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du
Service clients ou contactez-nous:
Email: csc@iec.ch
Tél.: +41 22 919 02 11
Fax: +41 22 919 03 00
IEC 60445 ®
Edition 5.0 2010-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ
Basic and safety principles for man-machine interface, marking and
identification –
Identification of equipment terminals, conductor terminations and conductors

Principes fondamentaux et de sécurité pour les interfaces homme-machines, le
marquage et l’identification –
Identification des bornes de matériels, des extrémités de conducteurs et des
conducteurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
T
CODE PRIX
ICS 29.020 ISBN 978-2-88912-166-3
– 2 – 60445 © IEC:2010
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms and definitions .7
4 Methods of identification.9
5 Application of identification means .10
6 Identification by colours.10
6.1 General .10
6.2 Use of single colours .11
6.2.1 Permitted colours .11
6.2.2 Neutral or mid-point conductors.11
6.2.3 Line conductors in AC-systems.11
6.3 Use of bi-colour combinations .11
6.3.1 Permitted colours .11
6.3.2 Protective conductors .11
6.3.3 PEN conductors.12
6.3.4 PEL conductors .12
6.3.5 PEM conductors .12
6.3.6 Protective bonding conductors.13
7 Identification by alphanumeric notation.13
7.1 General .13
7.2 Equipment terminal identification – Marking principles.13
7.3 Identification of certain designated conductors .16
7.3.1 General .16
7.3.2 Neutral conductor .16
7.3.3 Protective conductor.16
7.3.4 PEN conductor .16
7.3.5 PEL conductor.16
7.3.6 PEM conductor .16
7.3.7 Protective bonding conductor .16
7.3.8 Protective bonding conductor earthed.16
7.3.9 Protective bonding conductor unearthed.16
7.3.10 Functional earthing conductor.16
7.3.11 Functional bonding conductor .16
7.3.12 Mid-point conductor .16
7.3.13 Line conductor.17
Annex A (informative) Colours, alphanumeric notations and graphical symbols used

for identification of conductors / terminals.18
Annex B (informative) List of notes concerning certain countries.20
Bibliography.24

Figure 1 – Single element with two terminals .13
Figure 2 – Single element with four terminals: two endpoints and two intermediate
points .14
Figure 3 – Three-phase equipment with six terminals.14

60445 © IEC:2010 – 3 –
Figure 4 – Three-element equipment with twelve terminals: six endpoints and six
intermediate points .14
Figure 5 – Equipment with groups of elements.15
Figure 6 – Interconnection of equipment terminals and certain designated conductors.15

Table A.1 – Colours, alphanumeric notations and graphical symbols used for
identification of conductors / terminals .18

– 4 – 60445 © IEC:2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
BASIC AND SAFETY PRINCIPLES FOR MAN-MACHINE
INTERFACE, MARKING AND IDENTIFICATION –
IDENTIFICATION OF EQUIPMENT TERMINALS, CONDUCTOR
TERMINATIONS AND CONDUCTORS
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.
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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
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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 arisin
...

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