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

This document 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 basic safety publication is primarily intended for use by technical committees in the
preparation of standards in accordance with the principles laid down in IEC Guide 104 and
ISO/IEC Guide 51.
It is not intended for use by manufacturers or certification bodies. One of the responsibilities
of a technical committee is, wherever applicable, to make use of basic safety publications in
the preparation of its publications. The requirements of this basic safety publication will not
apply unless specifically referred to or included in the relevant publications.

Grund und Sicherheitsregeln für die Mensch-Maschine-Schnittstelle - Kennzeichnung von Anschlüssen elektrischer Betriebsmittel, angeschlossenen Leiterenden und Leitern

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

NEW!IEC 60445:2017 est disponible sous forme de IEC 60445:2017 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 60445:2017 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. Il 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. Elle a le statut d'une publication fondamentale de sécurité, conformément au Guide 104 de l’IEC. Cette sixième édition annule et remplace la cinquième édition de l’IEC 60445, parue en 2010. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente: a) le texte de l’introduction a été déplacé dans le domaine d’application conformément au Guide 104 de l’IEC; b) codes couleur permettant l’identification des conducteurs de ligne dans les systèmes à courant continu; c) code couleur permettant l’identification d’un conducteur de mise à la terre fonctionnelle; d) mise à jour du Tableau A.1intégrant les codes couleur des conducteurs de ligne à courant continu; e) conversion des notes comportant des exigences non obligatoires en texte normatif; f) la terminologie est alignée sur l’IEC 60050-195.

Osnovna in varnostna načela za vmesnik človek-stroj, označevanje in razpoznavanje - Razpoznavanje terminalov opreme, končnikov vodnikov in vodnikov

Ta dokument se uporablja za razpoznavanje in označevanje terminalov električne opreme, kot so upori, varovalke, releji, kontaktorji, transformatorji, motorji in, kadar je to primerno, za kombinacije takšne opreme (npr. sklope). Uporablja se tudi za razpoznavanje končnikov nekaterih navedenih vodnikov. Določa tudi splošna pravila za uporabo nekaterih barv ali alfanumeričnih oznak za razpoznavanje vodnikov, ki preprečujejo dvoumnost in zagotavljajo varno delovanje. Te barve vodnikov ali alfanumerične oznake so namenjene za uporabo na kablih ali jedrih, vodilih, električni opremi in napravah.
Ta osnovna varnostna publikacija je namenjena predvsem tehničnim odborom za pripravo standardov v skladu z načeli vodil IEC 104 in ISO/IEC 51.
Ni namenjena proizvajalcem ali certifikacijskim organom. Ena od pristojnosti tehničnih odborov je, da med pripravo publikacij uporabljajo osnovne varnostne publikacije, kadar je to primerno. Zahteve te osnovne varnostne publikacije se ne uporabljajo, razen če so izrecno navedene ali zajete v ustreznih publikacijah.

General Information

Status
Published
Publication Date
13-Mar-2018
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
07-Dec-2017
Due Date
11-Feb-2018
Completion Date
14-Mar-2018

RELATIONS

Buy Standard

Standard
SIST EN 60445:2018 - BARVE na PDF-str 24
English language
29 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 60445:2018
01-april-2018
1DGRPHãþD
SIST EN 60445:2011
2VQRYQDLQYDUQRVWQDQDþHOD]DYPHVQLNþORYHNVWURMR]QDþHYDQMHLQ
UD]SR]QDYDQMH5D]SR]QDYDQMHWHUPLQDORYRSUHPHNRQþQLNRYYRGQLNRYLQ
YRGQLNRY

Basic and safety principles for man-machine interface, marking and identification -

Identification of equipment terminals, conductor terminations and conductors

Grund und Sicherheitsregeln für die Mensch-Maschine-Schnittstelle - Kennzeichnung

von Anschlüssen elektrischer Betriebsmittel, angeschlossenen Leiterenden und Leitern

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
Ta slovenski standard je istoveten z: EN 60445:2017
ICS:
29.020 Elektrotehnika na splošno Electrical engineering in
general
SIST EN 60445:2018 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 60445:2018
---------------------- Page: 2 ----------------------
SIST EN 60445:2018
EUROPEAN STANDARD EN 60445
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2017
ICS 01.080.20; 13.110; 29.020 Supersedes EN 60445:2010
English Version
Basic and safety principles for man-machine interface, marking
and identification - Identification of equipment terminals,
conductor terminations and conductors
(IEC 60445:2017 + COR1:2017)

Principes fondamentaux et de sécurité pour les interfaces Grund- und Sicherheitsregeln für die Mensch-Maschine-

homme-machine, le marquage et l'identification - Schnittstelle - Kennzeichnung von Anschlüssen elektrischer

Identification des bornes de matériels, des extrémités de Betriebsmittel, angeschlossenen Leiterenden und Leitern

conducteurs et des conducteurs (IEC 60445:2017 + COR1:2017)
(IEC 60445:2017 + COR1:2017)

This European Standard was approved by CENELEC on 2017-09-08. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 60445:2017 E
---------------------- Page: 3 ----------------------
SIST EN 60445:2018
EN 60445:2017
European foreword

The text of document 3/1313/FDIS, future edition 6 of IEC 60445, prepared by IEC/TC 3 "Information

structures and elements, identification and marking principles, documentation and graphical symbols"

was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60445:2017.

The following dates are fixed:
(dop) 2018-06-08
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-09-08
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60445:2010.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice

The text of the International Standard IEC 60445:2017+COR1:2017 was approved by CENELEC as a

European Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60079-11:2006 NOTE Harmonized as EN 60079-11:2007 (not modified).
IEC 60601 Series NOTE Harmonized as EN 60601 Series.
IEC 61140:2016 NOTE Harmonized as EN 61140:2016 (not modified).
IEC 61666:2010 NOTE Harmonized as EN 61666:2010 (not modified).
IEC 62491:2008 NOTE Harmonized as EN 62491:2008 (not modified).
Superseded by EN 60079-11:2012 (IEC 60079-11:2011).
---------------------- Page: 4 ----------------------
SIST EN 60445:2018
EN 60445:2017
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments)

applies.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60417-DB - Graphical symbols for use on equipment - -
IEC 60617-DB - Graphical symbols for diagrams - -
IEC Guide 104 - The preparation of safety publications and - -
the use of basic safety publications and
group safety publications
ISO/IEC Guide 51 - Safety aspects - Guidelines for their - -
inclusion in standards
---------------------- Page: 5 ----------------------
SIST EN 60445:2018
---------------------- Page: 6 ----------------------
SIST EN 60445:2018
IEC 60445
Edition 6.0 2017-08
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-machine,
le marquage et l’identification – Identification des bornes de matériels, des
extrémités de conducteurs et des conducteurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 01.080.20; 13.110; 29.020 ISBN 978-2-8322-4577-4

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN 60445:2018
– 2 – IEC 60445:2017 © IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 4

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 6

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 conductor ....................................................................... 11

6.2.3 Line conductor in AC system ......................................................................... 11

6.2.4 Line conductor in DC system ......................................................................... 11

6.2.5 Functional earthing conductor ........................................................................ 11

6.3 Use of bi-colour combinations ............................................................................... 11

6.3.1 Permitted colours........................................................................................... 11

6.3.2 Protective conductor ...................................................................................... 11

6.3.3 PEN conductor .............................................................................................. 12

6.3.4 PEL conductor ............................................................................................... 12

6.3.5 PEM conductor .............................................................................................. 13

6.3.6 Protective bonding conductor......................................................................... 13

7 Identification by alphanumeric notation .......................................................................... 13

7.1 General ................................................................................................................. 13

7.2 Equipment terminal identification – Marking principles .......................................... 14

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 .............................................................................................. 17

7.3.5 PEL conductor ............................................................................................... 17

7.3.6 PEM conductor .............................................................................................. 17

7.3.7 Protective bonding conductor......................................................................... 17

7.3.8 Protective bonding conductor earthed ............................................................ 17

7.3.9 Protective bonding conductor unearthed ........................................................ 17

7.3.10 Functional earthing conductor ........................................................................ 17

7.3.11 Functional bonding conductor ........................................................................ 17

7.3.12 Mid-point conductor ....................................................................................... 17

7.3.13 Line conductor ............................................................................................... 17

Annex A (informative) Colours, alphanumeric notations and graphical symbols used

for identification of conductors and terminals ........................................................................ 18

Annex B (informative) List of notes concerning certain countries .......................................... 20

Bibliography .......................................................................................................................... 26

Figure 1 – Single element with two terminals ........................................................................ 14

---------------------- Page: 8 ----------------------
SIST EN 60445:2018
IEC 60445:2017 © IEC 2017 – 3 –

Figure 2 – Single element with four terminals: Two endpoints and two intermediate

points.................................................................................................................................... 14

Figure 3 – Three-phase equipment with six terminals ............................................................ 15

Figure 4 – Three-element equipment with twelve terminals: Six endpoints and six

intermediate points ............................................................................................................... 15

Figure 5 – Equipment with groups of elements ...................................................................... 16

Figure 6 – Interconnection of equipment terminals and certain designated conductors .......... 16

Table A.1 – Colours, alphanumeric notations and graphical symbols used for

identification of conductors and terminals ............................................................................. 18

---------------------- Page: 9 ----------------------
SIST EN 60445:2018
– 4 – IEC 60445:2017 © IEC 2017
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.

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

services carried out by independent certification bodies.

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

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 arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

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 document has been prepared by IEC technical committee 3: Information structures and

elements, identification and marking principles, documentation and graphical symbols.

It has the status of a basic safety publication in accordance with IEC Guide 104.

This sixth edition cancels and replaces the fifth edition of IEC 60445, published in 2010.

This edition includes the following significant technical changes with respect to the previous

edition:
a) the text of the introduction has been moved into the scope in accordance with
IEC Guide 104;
b) colour codes for the identification of line conductors of DC systems;
c) colour code for the identification of functional earthing conductor;
d) update of Table A.1 with colour codes for DC line conductors;
---------------------- Page: 10 ----------------------
SIST EN 60445:2018
IEC 60445:2017 © IEC 2017 – 5 –
e) conversion of notes containing non-mandatory requirements to normative text;
f) the terminology is aligned with IEC 60050-195.
The text of this International Standard is based on the following documents:
FDIS Report on voting
3/1313/FDIS 3/1326/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

The reader's attention is drawn to the fact that Annex B lists all of the “in-some-country”

clauses on differing practices of a less permanent nature relating to the subject of this

standard.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

The contents of the corrigendum of November 2017 have been included in this copy.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
---------------------- Page: 11 ----------------------
SIST EN 60445:2018
– 6 – IEC 60445:2017 © IEC 2017
BASIC AND SAFETY PRINCIPLES FOR MAN-MACHINE
INTERFACE, MARKING AND IDENTIFICATION –
IDENTIFICATION OF EQUIPMENT TERMINALS,
CONDUCTOR TERMINATIONS AND CONDUCTORS
1 Scope

This document 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 basic safety publication is primarily intended for use by technical committees in the

preparation of standards in accordance with the principles laid down in IEC Guide 104 and

ISO/IEC Guide 51.

It is not intended for use by manufacturers or certification bodies. One of the responsibilities

of a technical committee is, wherever applicable, to make use of basic safety publications in

the preparation of its publications. The requirements of this basic safety publication will not

apply unless specifically referred to or included in the relevant publications.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their

content constitutes requirements of this document. For dated references, only the edition

cited applies. For undated references, the latest edition of the referenced document (including

any amendments) applies.
IEC 60417, Graphical symbols for use on equipment
IEC 60617, Graphical symbols for diagrams

IEC Guide 104, The preparation of safety publications and the use of basic safety publications

and group safety publications
ISO/IEC Guide 51, Safety aspects – Guidelines for their inclusion in standards
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
NOTE The terms are sorted in alphabetical order in the English language.
---------------------- Page: 12 ----------------------
SIST EN 60445:2018
IEC 60445:2017 © IEC 2017 – 7 –
3.1
electric equipment

item used for such purposes as generation, conversion, transmission, distribution or utilization

of electric energy, such as electric machines, transformers, switchgear and controlgear,

measuring instruments, protective devices, wiring systems, current-using equipment

[SOURCE: IEC 60050-826:2004, 826-16-01]
3.2
functional bonding conductor
conductor provided for functional-equipotential-bonding
[SOURCE: IEC 60050-195:1998, 195-02-16]
3.3
functional earthing
functional grounding (US)

earthing a point or points in a system or in an installation or in equipment, for purposes other

than electrical safety
[SOURCE: IEC 60050-195/AMD1:2001, 195-01-13]
3.4
functional earthing conductor
functional grounding conductor, US
earthing conductor provided for functional earthing
[SOURCE: IEC 60050-195:1998, 195-02-15]
3.5
functional-equipotential-bonding
equipotential bonding for operational reasons other than safety
[SOURCE: IEC 60050-195:1998, 195-01-16]
3.6
line conductor
DEPRECATED: phase conductor (in AC systems)
DEPRECATED: pole conductor (in DC systems)

conductor which is energized in normal operation and capable of contributing to the

transmission or distribution of electric energy but which is not a neutral or mid-point conductor

[SOURCE: IEC 60050-195:1998, 195-02-08]
3.7
mid-point conductor

conductor electrically connected to the mid-point and capable of contributing to the

distribution of electric energy
[SOURCE: IEC 60050-195:1998, 195-02-07]
3.8
neutral conductor

conductor electrically connected to the neutral point and capable of contributing to the

distribution of electric energy
[SOURCE: IEC 60050-195:1998, 195-02-06]
---------------------- Page: 13 ----------------------
SIST EN 60445:2018
– 8 – IEC 60445:2017 © IEC 2017
3.9
PEL conductor

conductor combining the functions of both a protective earthing conductor and a line

conductor
[SOURCE: IEC 60050-195:1998, 195-02-14]
3.10
PEM conductor

conductor combining the functions of both a protective earthing conductor and a mid-point

conductor
[SOURCE: IEC 60050-195:1998, 195-02-13]
3.11
PEN conductor

conductor combining the functions of both a protective earthing conductor and a neutral

conductor
[SOURCE: IEC 60050-195:1998, 195-02-12]
3.12
protective bonding conductor
DEPRECATED: equipotential bonding conductor
protective conductor provided for protective-equipotential-bonding
[SOURCE: IEC 60050-195:1998, 195-02-10]
3.13
protective bonding conductor earthed
protective bonding conductor with a conductive path to local earth
3.14
protective bonding conductor unearthed
protective bonding conductor without a conductive path to local earth
3.15
protective conductor
(identification: PE)
equipment grounding conductor, US
grounding electrode conductor, US

conductor provided for purposes of safety, for example protection against electric shock

Note 1 to entry: The terms equipment grounding conductor and grounding electrode conductor are used in the US

depending on their application.

[SOURCE: IEC 60050-195:1998, 195-02-09, modified – two synonyms and a note to entry

have been added.]
3.16
protective earthing
protective grounding, US

earthing a point or points in a system or in an installation or in equipment, for purposes of

electrical safety
[SOURCE: IEC 60050-195:2001, 195-01-11]
---------------------- Page: 14 ----------------------
SIST EN 60445:2018
IEC 60445:2017 © IEC 2017 – 9 –
3.17
protective earthing conductor
protective grounding conductor, US
protective conductor provided for protective earthing
[SOURCE: IEC 60050-195:1998, 195-02-11]
3.18
protective-equipotential-bonding
equipotential bonding for the purposes of safety
[SOURCE: IEC 60050-195:1998, 195-01-15]
3.19
earth, verb
ground, verb,US

make an electric connection between a given point in a system of in an installation or in

equipment and a local earth
Note 1 to entry: The connection to local earth may be
– intentional, or
– unintentional or accidental
and may be permanent or temporary.
[SOURCE: IEC 60050-195:1998, 195-01-08]
3.20
equipotential bonding
provision of electric connections between conductive parts, intended to achieve
equipotentiality
[SOURCE: IEC 60050-195:1998, 195-01-10]
3.21
equipotentiality
state when conductive parts are at a substantially equal electric potential
[SOURCE: IEC 60050-195:1998, 195-01-09]
4 Methods of identification

Where the identification of equipment terminals and of terminations of certain designated

conductors is considered necessary, it shall be effected by the use of one or more of the

following methods:

– the physical or relative location of the equipment terminals or of terminations of certain

designated conductors;

– a colour code for equipment terminals and terminations of certain designated conductors

in accordance with Clause 6;

– graphical symbols in accordance with IEC 60417. If additional symbols are required, these

shall be consistent with IEC 60617;
– an alphanumeric notation in accordance with the system laid down in Clause 7.

To keep consistency with the documentation, conductor and equipment terminal designation,

the alphanumeric notation is recommended.
---------------------- Page: 15 ----------------------
SIST EN 60445:2018
– 10 – IEC 60445:2017 © IEC 2017

Identification of conductors by colours shall be in accordance with the requirements provided

in Clause 6. Identification of conductors by alphanumeric notation shall be in accordance with

the requirements provided in Clause 7.

NOTE It is recognised that for complex systems and installations additional marking and labelling are used for

reasons other than safety, see for example IEC 62491.
5 Application of identification means

The identifying colour, graphical symbol or alphanumeric notation shall be located on, or

adjacent to, the corresponding terminal.

When more than one identification method is used and confusion is possible, the correlation

between the methods shall be clarified in the associated documentation.

When no confusion is possible, the juxtaposition of numerical and alphanumeric notation may

be applied.

Terminals and conductors used for earthing are divided concerning their purpose of earthing

into the two basic concepts of protective earthing and functional earthing.

– If a terminal or conductor fulfils the requirements for both protective earthing and

functional earthing, it shall be designated as a protective earthing terminal or protective

earthing conductor, respectively.

– If the requirements for protective earthing are not met by a functional earthing terminal or

functional earthing conductor, it shall not be marked with an identification of a protective

earthing terminal or protective earthing conductor, respectively.

– The requirements for functional earthing are to be defined by the manufacturer or the

relevant product committee and should be specified within the documentation of the

equipment.
NOTE For example, requirements for handling EMC issues.
6 Identification by colours
6.1 General
For identification of conductors, the following colours are permitted:
BLACK, BROWN, RED, ORANGE, YELLOW, GREEN, BLUE, VIOLET, GREY, WHITE,
PINK, TURQUOISE.
NOTE This list of colours is derived from IEC 60757.
The identification by colour shall be used at terminations an
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.