|
IEC 60364-5-54
Edition 3.0 2021-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Low-voltage electrical installations –
Part 5-54: Selection and erection of electrical equipment – Earthing
arrangements and protective conductors
Installations électriques à basse tension –
Partie 5-54: Choix et mise en œuvre des matériels électriques – Installations
de mise à la terre et conducteurs de protection
IEC 60364-5-54:2011-03/AMD1:2021-04(en-fr)
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 l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de
CH-1211 Geneva 20
Switzerland
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 corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) 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 IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.
Recherche de publications IEC - IEC online collection - oc.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications. Avec un
en utilisant différents critères (numéro de référence, texte, abonnement, vous aurez toujours accès à un contenu à jour
comité d’études, …). Elle donne aussi des informations sur adapté à vos besoins.
les projets et les publications remplacées ou retirées.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au
Restez informé sur les nouvelles publications IEC. Just
monde, avec plus de 22 000 articles terminologiques en
Published détaille les nouvelles publications parues.
anglais et en français, ainsi que les termes équivalents dans
Disponible en ligne et une fois par mois par email.
16 langues additionnelles. Egalement appelé Vocabulaire
Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[email protected] .
IEC 60364-5-54
Edition 3.0 2021-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Low-voltage electrical installations –
Part 5-54: Selection and erection of electrical equipment – Earthing
arrangements and protective conductors
Installations électriques à basse tension –
Partie 5-54: Choix et mise en œuvre des matériels électriques – Installations
de mise à la terre et conducteurs de protection
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.020; 91.140.50 ISBN 978-2-8322-9591-5
– 2 – IEC 60364-5-54:2011/AMD1:2021
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-VOLTAGE ELECTRICAL INSTALLATIONS –
Part 5-54: Selection and erection of electrical equipment –
Earthing arrangements and protective conductors
AMENDMENT 1
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 document may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to IEC 60364-5-54:2011 has been prepared by IEC technical committee 64:
Electrical installations and protection against electric shock.
The text of this Amendment is based on the following documents:
Draft Report on voting
64/2479/FDIS 64/2481/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Amendment is English.
© IEC 2021
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,
available at /members_experts/refdocs. The main document types developed by
IEC are described in greater detail at /standardsdev/publications/.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under 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.
_____________
INTRODUCTION to Amendment 1
The main changes provided in this Amendment 1 are:
• clarification and necessary modifications to define a clear borderline between functional
earthing and protective earthing (see INTRODUCTION);
• introduction of additional requirements for functional earthing and functional-equipotential-
bonding for information technology systems and communication equipment (ICT).
_____________
INTRODUCTION
Add the following new text at the end of the existing paragraph:
To define a clear borderline between functional earthing and protective earthing the following
explanations are given:
Functional earthing
• Functional earthing
If any connection of the functional earthing is interrupted, it does not impair any kind of
protection or any kind of protective measure or protective provision provided for electrical
safety. Therefore, its application mainly relates to:
– communication,
– measurement, and
– EMC as regards radiated disturbances and conducted high frequency disturbances.
– 4 – IEC 60364-5-54:2011/AMD1:2021
© IEC 2021
• Protective earthing
If any connection of the protective earthing is interrupted, it impairs the protection or the
function of a protective measure or protective provision provided for electrical safety.
Requirement for protective earthing are given in:
– IEC 60364-4-41 for protection against electric shock;
– IEC 60364-4-42 for protection against thermal effects;
– IEC 60364-4-44 for protection against conducted disturbances.
541.1 Scope
Add the following new text at the end of the existing paragraph:
This document also includes requirements regarding earthing and equipotential bonding for
information and communication technology (ICT) with the aim of:
– reducing the risk of electrical hazards for correct operation of these devices and the
information and communication technology wiring;
– providing the telecommunication systems with a reliable signal reference plane that can
improve resistance to electromagnetic interference (EMI) by reference to ISO/IEC 30129.
NOTE Examples of information and communication technology (ICT) include:
– DC supply networks (and systems) for supplying power to ICT equipment within a building;
– star-shaped private automatic branch exchanges (PABX) or their equipment;
– local area (communication) networks (LANs);
– fire and intruder alarms communication systems;
– building automation systems, e.g. direct digital control systems;
– systems for computer-aided manufacturing (CAM) and other computer-aided services;
– broadcast and communication technology.
541.2 Normative references
Add the following new references:
IEC 60445, Basic and safety principles for man-machine interface, marking and identification
– Identification of equipment terminals, conductor terminations and conductors
IEC 60417, Graphical symbols for use on equipment (available at http://www.graphical-
symbols.info/equipment)
Replace the existing reference to IEC 62305-3:2006 with the following new reference:
IEC 62305-3:2010, Protection against lightning – Part 3: Physical damage to structures and
life hazard
541.3 Terms and definitions
Add the following new definitions:
541.3.13
functional earthing conductor
conductor provided for functional earthing
[SOURCE: IEC 60050-826:2004, 826-13-28, modified – In the definition, "earthing conductor"
replaced with "conductor".]
© IEC 2021
541.3.14
main functional earthing terminal
main functional earthing busbar
MFET
terminal or busbar, which is part of the functional earthing arrangement of an electrical
installation, enabling the electric connection of a number of conductors for functional earthing
purposes
541.3.15
functional-
...