Low-voltage electrical installations - Part 7-717: Requirements for special installations or locations - Mobile or transportable units

IEC 60364-7-717:2026 applies to electrical installations of mobile units or transportable units.
The requirements of this document are not applicable to:
– generating sets;
– pleasure craft;
– caravans and motor caravans;
– electrical circuits and equipment for automotive purposes.
This third edition cancels and replaces the second edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) The scope has been improved, providing more detail.
b) The content of Clause 717.41 has been updated following the publication of IEC 60364-4-41:2005/AMD1:2017.
c) Clauses concerning protection by automatic disconnection of the supply and additional protection have been added.
d) Figures have been simplified, updated or deleted.
e) Designation of SPD has been updated to use Tx SPD instead of Class x tested SPD.

Installations électriques à basse tension - Partie 7-717: Exigences pour les installations ou emplacements spéciaux - Unités mobiles ou transportables

IEC 60364-7-717:2026 s'appliquent aux installations électriques des unités mobiles ou transportables.
Les exigences du présent document ne s'appliquent pas:
– aux groupes générateurs;
– aux navires de plaisance;
– aux caravanes et camping-cars;
– aux circuits et aux matériels électriques pour la propulsion.
Cette troisième édition annule et remplace la deuxième édition parue en 2009 et constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) le domaine d’application a été amélioré et précisé;
b) le contenu du 717.41 a été mis à jour, suite à la publication de l'IEC 60364-4-41:2005/AMD1:2017;
c) des articles concernant la protection par coupure automatique de l’alimentation et la protection complémentaire ont été ajoutés;
d) les figures ont été simplifiées, mises à jour ou supprimées;
e) la désignation du parafoudre a été mise à jour pour utiliser "parafoudre Tx" à la place de "parafoudre vérifié de classe x".

General Information

Status
Published
Publication Date
28-Jan-2026
Drafting Committee
MT 3 - TC 64/MT 3
Current Stage
PPUB - Publication issued
Start Date
29-Jan-2026
Completion Date
27-Feb-2026

Relations

Effective Date
05-Sep-2023
Standard

IEC 60364-7-717:2026 - Low-voltage electrical installations - Part 7-717: Requirements for special installations or locations - Mobile or transportable units Released:29. 01. 2026 Isbn:9782832710241

English language
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IEC 60364-7-717:2026 - Installations électriques à basse tension - Partie 7-717: Exigences pour les installations ou emplacements spéciaux - Unités mobiles ou transportables Released:29. 01. 2026 Isbn:9782832710241

French language
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Standard

IEC 60364-7-717:2026 - Low-voltage electrical installations - Part 7-717: Requirements for special installations or locations - Mobile or transportable units Released:29. 01. 2026 Isbn:9782832710241

English and French language
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Frequently Asked Questions

IEC 60364-7-717:2026 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Low-voltage electrical installations - Part 7-717: Requirements for special installations or locations - Mobile or transportable units". This standard covers: IEC 60364-7-717:2026 applies to electrical installations of mobile units or transportable units. The requirements of this document are not applicable to: – generating sets; – pleasure craft; – caravans and motor caravans; – electrical circuits and equipment for automotive purposes. This third edition cancels and replaces the second edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) The scope has been improved, providing more detail. b) The content of Clause 717.41 has been updated following the publication of IEC 60364-4-41:2005/AMD1:2017. c) Clauses concerning protection by automatic disconnection of the supply and additional protection have been added. d) Figures have been simplified, updated or deleted. e) Designation of SPD has been updated to use Tx SPD instead of Class x tested SPD.

IEC 60364-7-717:2026 applies to electrical installations of mobile units or transportable units. The requirements of this document are not applicable to: – generating sets; – pleasure craft; – caravans and motor caravans; – electrical circuits and equipment for automotive purposes. This third edition cancels and replaces the second edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) The scope has been improved, providing more detail. b) The content of Clause 717.41 has been updated following the publication of IEC 60364-4-41:2005/AMD1:2017. c) Clauses concerning protection by automatic disconnection of the supply and additional protection have been added. d) Figures have been simplified, updated or deleted. e) Designation of SPD has been updated to use Tx SPD instead of Class x tested SPD.

IEC 60364-7-717:2026 is classified under the following ICS (International Classification for Standards) categories: 29.020 - Electrical engineering in general; 91.140.50 - Electricity supply systems. The ICS classification helps identify the subject area and facilitates finding related standards.

IEC 60364-7-717:2026 has the following relationships with other standards: It is inter standard links to IEC 60364-7-717:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

IEC 60364-7-717:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


IEC 60364-7-717 ®
Edition 3.0 2026-01
INTERNATIONAL
STANDARD
Low-voltage electrical installations -
Part 7-717: Requirements for special installations or locations - Mobile or
transportable units
ICS 29.020; 91.140.50 ISBN 978-2-8327-1024-1

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or
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CONTENTS
FOREWORD . 2
INTRODUCTION . 4
717 Mobile or transportable units . 5
717.1 Scope . 5
717.2 Normative references . 5
717.3 Terms and definitions . 6
717.4 Protection for safety . 8
717.41 Protection against electric shock . 8
717.410 Introduction . 8
717.411 Protective measure: automatic disconnection of supply . 8
717.44 Protection against voltage disturbances and electromagnetic disturbances . 9
717.443 Protection against transient overvoltages of atmospheric origin or due to
switching . 9
717.5 Selection and erection of electrical equipment . 9
717.51 Common rules . 9
717.512 Operational conditions and external influences . 9
717.514 Identification . 10
717.52 Wiring systems . 10
717.521 Types of wiring system . 10
717.528 Proximity of wiring systems to other services . 10
717.53 Devices for protection for safety, isolation, switching, control and
monitoring . 11
717.531 Equipment for protection against electric shock . 11
717.534 Devices for protection against transient overvoltages . 11
717.54 Earthing arrangements and protective conductors . 12
717.542 Earthing arrangement . 12
717.544 Protective bonding conductors . 13
717.55 Other equipment . 13
Annex A (informative) List of notes concerning certain countries . 14
Bibliography . 16

Figure 1 – Example of an earth connection to the chassis . 7
Figure 2 – Example of a T1 SPD connection scheme . 12

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Low-voltage electrical installations -
Part 7-717: Requirements for special installations or locations -
Mobile or transportable units
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
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the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 60364-7-717 has been prepared by IEC technical committee 64: Electrical installations and
protection against electric shock. It is an International Standard.
This third edition cancels and replaces the second edition published in 2009. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) The scope has been improved, providing more detail.
b) The content of Clause 717.41 has been updated following the publication of
IEC 60364-4-41:2005/AMD1:2017.
c) Clauses concerning protection by automatic disconnection of the supply and additional
protection have been added.
d) Figures have been simplified, updated or deleted.
e) Designation of SPD has been updated to use Tx SPD instead of Class x tested SPD.
The text of this International Standard is based on the following documents:
Draft Report on voting
64/2796/FDIS 64/2817/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 International Standard is English.
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 www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 60364 series, published under the general title Low-voltage electrical
installations, can be found on the IEC website.
The reader's attention is drawn to the fact that Annex A lists all of the "in-some-country" clauses
on differing practices of a less permanent nature relating to the subject of this document.
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, or
– revised.
INTRODUCTION
For the purpose of this part of IEC 60364 (IEC 60364-7-717) the requirements of the general
Parts 1, 4, 5, 6 and 8 of IEC 60364 apply.
The IEC 60364-7-7XX parts of IEC 60364 contain particular requirements for special
installations or locations which are based on the requirements of the general parts of
IEC 60364 (IEC 60364-1, IEC 60364-4, IEC 60364-5, IEC 60364-6 and IEC 60364-8). These
IEC 60364-7-7XX parts are considered in conjunction with the requirements of the general
parts.
The particular requirements of this part of IEC 60364 supplement, modify or replace certain of
the requirements of the general parts of IEC 60364 being valid at the time of publication of this
part. The absence of reference to the exclusion of a part or a clause of a general part means
that the corresponding clauses of the general part are applicable (undated reference).
Requirements of other 7XX parts being relevant for installations covered by this part also apply.
This part can therefore also supplement, modify or replace certain of these requirements valid
at the time of publication of this part.
The clause numbering of this part follows the pattern and corresponding references of
IEC 60364. The numbers following the particular number of this part are those of the
corresponding parts, or clauses of the other parts of the IEC 60364 series, valid at the time of
publication of this part, as indicated in the normative references of this document (dated
reference).
If requirements or explanations additional to those of the other parts of the IEC 60364 series
are needed, the numbering of such items appears as 717.101, 717.102, 717.103, etc.
In the case where new or amended general parts with modified numbering were published after
this part was issued, the clause numbers referring to a general part in this Part 717 can no
longer align with the latest edition of the general part. Dated references should be observed.

717 Mobile or transportable units
717.1 Scope
The particular requirements as specified in this part of IEC 60364 apply to electrical installations
of mobile units or transportable units.
The requirements of this document are not applicable to:
– generating sets;
– pleasure craft;
– caravans and motor caravans;
– electrical circuits and equipment for automotive purposes.
717.2 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 60227-3, Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V - Part 3: Non-sheathed cables for fixed wiring
IEC 60228, Conductors of insulated cables
IEC 60332-1-2, Tests on electric and optical fibre cables under fire conditions - Part 1-2: Test
for vertical flame propagation for a single insulated wire or cable - Procedure for 1 kW pre-mixed
flame
IEC 60364-1:2025, Low-voltage electrical installations - Part 1: Fundamental principles,
assessment of general characteristics, and definitions
IEC 60364-4-41:2005, Low-voltage electrical installations - Part 4-41: Protection for safety -
Protection against electric shock
IEC 60364-4-41:2005/AMD1:2017
IEC 60364-4-44:2024, Low-voltage electrical installations - Part 4-44: Protection for safety -
Protection against voltage disturbances and electromagnetic disturbances
IEC 60364-5-51:2005, Electrical installations of buildings - Part 5-51: Selection and erection of
electrical equipment - Common rules
IEC 60364-5-52:2009, Electrical installations of buildings - Part 5-52: Selection and erection of
electrical equipment - Wiring systems
IEC 60364-5-53:2019, Low-voltage electrical installations - Part 5-53: Selection and erection of
electrical equipment - Devices for protection for safety, isolation, switching, control and
monitoring
IEC 60364-5-53:2019/AMD1:2020
IEC 60364-5-53:2019/ AMD2:2024
IEC 60364-5-54:2011, Low-voltage electrical installations - Part 5-54: Selection and erection of
electrical equipment - Earthing arrangements and protective conductors
IEC 60364-5-54:2011/AMD1:2021
IEC 60364-5-55, Electrical installations of buildings - Part 5-55: Selection and erection of
electrical equipment - Other equipment
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 61084 (all parts), Cable trunking systems and cable ducting systems for electrical
installations
IEC 61386 (all parts), Conduit systems for cable management
IEC 62262, Degrees of protection provided by enclosures for electrical equipment against
external mechanical impacts (IK code)
717.3 Terms and definitions
For the purposes of this document, the following terms an
...


IEC 60364-7-717 ®
Edition 3.0 2026-01
NORME
INTERNATIONALE
Installations électriques à basse tension -
Partie 7-717: Exigences pour les installations ou emplacements spéciaux -
Unités mobiles ou transportables
ICS 29.020; 91.140.50 ISBN 978-2-8327-1024-1

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SOMMAIRE
AVANT-PROPOS . 2
INTRODUCTION . 4
717 Unités mobiles ou transportables . 5
717.1 Domaine d’application . 5
717.2 Références normatives . 5
717.3 Termes et définitions . 6
717.4 Protection pour assurer la sécurité . 8
717.41 Protection contre les chocs électriques . 8
717.410 Introduction . 8
717.411 Mesure de protection: coupure automatique de l'alimentation . 8
717.44 Protection contre les perturbations de tension et les perturbations
électromagnétiques . 9
717.443 Protection contre les surtensions transitoires d’origine atmosphérique ou
dues à des manœuvres . 9
717.5 Choix et mise en œuvre des matériels électriques . 9
717.51 Règles communes . 9
717.512 Conditions de service et influences externes . 9
717.514 Identification . 10
717.52 Canalisations électriques . 10
717.521 Types de canalisations électriques . 10
717.528 Voisinage des canalisations avec d'autres services . 11
717.53 Dispositifs de protection pour assurer la sécurité, le sectionnement, la
coupure, la commande et la surveillance . 11
717.531 Matériel de protection contre les chocs électriques . 11
717.534 Dispositifs de protection contre les surtensions transitoires . 11
717.54 Mises à la terre et conducteurs de protection . 13
717.542 Mises à la terre . 13
717.544 Conducteurs d'équipotentialité . 13
717.55 Autres matériels . 13
Annexe A (informative) Liste des notes concernant certains pays . 14
Bibliographie . 16

Figure 1 – Exemple d'une connexion de terre au châssis . 7
Figure 2 – Exemple de schéma de raccordement d'un parafoudre T1. 12

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
Installations électriques à basse tension -
Partie 7-717: Exigences pour les installations ou emplacements spéciaux -
Unités mobiles ou transportables

AVANT-PROPOS
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L'IEC 60364-7-717 a été établie par le comité d’études 64 de l'IEC: Installations électriques et
protection contre les chocs électriques. Il s'agit d'une Norme internationale.
Cette troisième édition annule et remplace la deuxième édition parue en 2009 et constitue une
révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition
précédente:
a) le domaine d’application a été amélioré et précisé;
b) le contenu du 717.41 a été mis à jour, suite à la publication de
l'IEC 60364-4-41:2005/AMD1:2017;
c) des articles concernant la protection par coupure automatique de l’alimentation et la
protection complémentaire ont été ajoutés;
d) les figures ont été simplifiées, mises à jour ou supprimées;
e) la désignation du parafoudre a été mise à jour pour utiliser "parafoudre Tx" à la place de
"parafoudre vérifié de classe x".
Le texte de cette Norme internationale est issu des documents suivants:
Projet Rapport de vote
64/2796/FDIS 64/2817/RVD
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant
abouti à son approbation.
La langue employée pour l'élaboration de cette Norme internationale est l'anglais.
Ce document a été rédigé selon les Directives ISO/IEC, Partie 2, il a été développé selon les
Directives ISO/IEC, Partie 1 et les Directives ISO/IEC, Supplément IEC, disponibles sous
www.iec.ch/members_experts/refdocs. Les principaux types de documents développés par
l'IEC sont décrits plus en détail sous www.iec.ch/publications.
Une liste de toutes les parties de la série IEC 60364, publiées sous le titre général Installations
électriques à basse tension, se trouve sur le site web de l'IEC.
L'attention du lecteur est attirée sur le fait que l'Annexe A donne une liste de tous les articles
qui traitent des différences de pratiques à caractère moins permanent qui existent dans certains
pays dans le domaine couvert par le présent document.
Le comité a décidé que le contenu de ce document ne sera pas modifié avant la date de stabilité
indiquée sur le site web de l'IEC sous webstore.iec.ch dans les données relatives au document
recherché. À cette date, le document sera
– reconduit,
– supprimé, ou
– révisé.
INTRODUCTION
Pour les besoins de la présente partie de l'IEC 60364 (IEC 60364-7-717), les exigences des
parties générales 1, 4, 5, 6 et 8 de l’IEC 60364 s’appliquent.
Les parties IEC 60364-7-7XX de l'IEC 60364 contiennent des exigences particulières pour les
installations ou emplacements spéciaux, qui sont fondées sur les exigences des parties
générales de l'IEC 60364 (IEC 60364-1, IEC 60364-4, IEC 60364-5, IEC 60364-6 et
IEC 60364-8). Ces parties IEC 60364-7-7XX sont prises en compte conjointement avec les
exigences des parties générales.
Les exigences particulières de la présente partie de l’IEC 60364 complètent, modifient ou
remplacent certaines des exigences des parties générales de l’IEC 60364 en vigueur au
moment de la publication de la présente partie. En l'absence de référence à l’exclusion d’une
partie ou d’un article d’une partie générale, les articles correspondants de la partie générale
s'appliquent (références non datées).
Les exigences des autres parties 7XX pertinentes pour les installations couvertes par la
présente partie s’appliquent également. Par conséquent, la présente partie peut également
compléter, modifier ou remplacer certaines de ces exigences en vigueur au moment de sa
publication.
La numérotation des articles de la présente partie suit la structure et les références
correspondantes de l'IEC 60364. Les numéros placés derrière le numéro spécifique de la
présente partie sont ceux des parties ou des articles correspondants des autres parties de la
série IEC 60364, en vigueur au moment de la publication de la présente partie, comme indiqué
dans les références normatives du présent document (référence datée).
Si des exigences ou des explications en plus de celles des autres parties de la série IEC 60364
sont nécessaires, la numérotation de tels éléments se fait de la manière suivante: 717.101,
717.102, 717.103, etc.
Si des parties générales nouvelles ou modifiées sont publiées avec une numérotation modifiée
après la parution de la présente partie, les numéros d’articles se référant à une partie générale
dans cette Partie 717 peuvent ne plus être alignés sur la dernière édition de la partie générale.
Il convient alors de prendre en compte les références datées.

717 Unités mobiles ou transportables
717.1 Domaine d’application
Les exigences particulières spécifiées de la présente partie de l'IEC 60364 s'appliquent aux
installations électriques des unités mobiles ou transportables.
Les exigences du présent document ne s'appliquent pas:
– aux groupes générateurs;
– aux navires de plaisance;
– aux caravanes et camping-cars;
– aux circuits et aux matériels électriques pour la propulsion.
717.2 Références normatives
Les documents suivants sont cités dans le texte de sorte qu’ils constituent, pour tout ou partie
de leur contenu, des exigences du présent document. Pour les références datées, seule
l'édition citée s'applique. Pour les références non datées, la dernière édition du document de
référence s'applique (y compris les éventuels amendements).
IEC 60227-3, Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V - Part 3: Non-sheathed cables for fixed wiring (Disponible en anglais seulement)
IEC 60228, Âmes des câbles isolés
IEC 60332-1-2, Essais des câbles électriques et à fibres optiques soumis au feu - Partie 1-2:
Essai de propagation verticale de la flamme sur conducteur ou câble isolé - Procédure pour
flamme à prémélange de 1 kW
IEC 60364-1:2025, Installations électriques à basse tension - Partie 1: Principes fondamentaux,
détermination des caractéristiques générales et définitions
IEC 60364-4-41:2005, Installations électriques à basse tension - Partie 4-41: Protection pour
assurer la sécurité - Protection contre les chocs électriques
IEC 60364-4-41:2005/AMD1:2017
IEC 60364-4-44:2024, Installations électriques à basse tension - Partie 4-44: Protection pour
assurer la sécurité - Protection contre les perturbations de tension et les perturbations
électromagnétiques
IEC 60364-5-51:2005, Installations électriques des bâtiments - Partie 5-51: Choix et mise en
œuvre des matériels électriques - Règles communes
IEC 60364-5-52:2009, Installations électriques à basse tension - Partie 5-52: Choix et mise en
œuvre des matériels électriques - Canalisations
IEC 60364-5-53:2019, Installations électriques à basse tension - Partie 5-53: Choix et mise en
œuvre des matériels électriques - Dispositifs de protection pour assurer la sécurité, le
sectionnement, la coupure, la commande et la surveillance
IEC 60364-5-53:2019/AMD1:2020
IEC 60364-5-53:2019/AMD2:2024
IEC 60364-5-54:2011, 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/AMD1:2021
IEC 60364-5-55, Installations électriques des bâtiments - Partie 5-55: Choix et mise en œuvre
des matériels électriques - Autres matériels
IEC 60529, Degrés de protection procurés par les enveloppes (Code IP)
IEC 61084 (toutes les parties), Systèmes de goulottes et systèmes de conduits-profilés pour
installations électriques
IEC 61386 (toutes les parties), Systèmes de conduits pour la gestion du câblage
IEC 62262, Degrés de protection procurés par les enveloppes de matériels électriques contre
les impacts mécaniques externes (code IK )
717.3 Termes et définitions
Pour les besoins du présent document, les termes et définitions suivants s’appliquent.
L'ISO et l'IEC tiennent à jour des bases de données terminologiques destinées à être utilisées
en normalisation, consultables aux adresses suivantes:
– IEC Electropedia: disponible à l'adresse https://www.electropedia.org/
– ISO Online browsing platform: disponible à l'adresse https://www.iso.org/obp
717.3.1
unité mobile
structure contenant une installation électrique et conçue pour être déplacée par ses propres
moyens
EXEMPLE Fourgon régie, véhicule d’urgence, camion de restauration.
Note 1 à l'article: Dans le présent document, le terme "unités" est utilisé dans le
...


IEC 60364-7-717 ®
Edition 3.0 2026-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage electrical installations -
Part 7-717: Requirements for special installations or locations - Mobile or
transportable units
Installations électriques à basse tension -
Partie 7-717: Exigences pour les installations ou emplacements spéciaux -
Unités mobiles ou transportables
ICS 29.020, 91.140.50 ISBN 978-2-8327-1024-1

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CONTENTS
FOREWORD . 2
INTRODUCTION . 4
717 Mobile or transportable units . 5
717.1 Scope . 5
717.2 Normative references . 5
717.3 Terms and definitions . 6
717.4 Protection for safety . 8
717.41 Protection against electric shock . 8
717.410 Introduction . 8
717.411 Protective measure: automatic disconnection of supply . 8
717.44 Protection against voltage disturbances and electromagnetic disturbances . 9
717.443 Protection against transient overvoltages of atmospheric origin or due to
switching . 9
717.5 Selection and erection of electrical equipment . 9
717.51 Common rules . 9
717.512 Operational conditions and external influences . 9
717.514 Identification . 10
717.52 Wiring systems . 10
717.521 Types of wiring system . 10
717.528 Proximity of wiring systems to other services . 10
717.53 Devices for protection for safety, isolation, switching, control and
monitoring . 11
717.531 Equipment for protection against electric shock . 11
717.534 Devices for protection against transient overvoltages . 11
717.54 Earthing arrangements and protective conductors . 12
717.542 Earthing arrangement . 12
717.544 Protective bonding conductors . 13
717.55 Other equipment . 13
Annex A (informative) List of notes concerning certain countries . 14
Bibliography . 16

Figure 1 – Example of an earth connection to the chassis . 7
Figure 2 – Example of a T1 SPD connection scheme . 12

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Low-voltage electrical installations -
Part 7-717: Requirements for special installations or locations -
Mobile or transportable units
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
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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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 60364-7-717 has been prepared by IEC technical committee 64: Electrical installations and
protection against electric shock. It is an International Standard.
This third edition cancels and replaces the second edition published in 2009. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) The scope has been improved, providing more detail.
b) The content of Clause 717.41 has been updated following the publication of
IEC 60364-4-41:2005/AMD1:2017.
c) Clauses concerning protection by automatic disconnection of the supply and additional
protection have been added.
d) Figures have been simplified, updated or deleted.
e) Designation of SPD has been updated to use Tx SPD instead of Class x tested SPD.
The text of this International Standard is based on the following documents:
Draft Report on voting
64/2796/FDIS 64/2817/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 International Standard is English.
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 www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 60364 series, published under the general title Low-voltage electrical
installations, can be found on the IEC website.
The reader's attention is drawn to the fact that Annex A lists all of the "in-some-country" clauses
on differing practices of a less permanent nature relating to the subject of this document.
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, or
– revised.
INTRODUCTION
For the purpose of this part of IEC 60364 (IEC 60364-7-717) the requirements of the general
Parts 1, 4, 5, 6 and 8 of IEC 60364 apply.
The IEC 60364-7-7XX parts of IEC 60364 contain particular requirements for special
installations or locations which are based on the requirements of the general parts of
IEC 60364 (IEC 60364-1, IEC 60364-4, IEC 60364-5, IEC 60364-6 and IEC 60364-8). These
IEC 60364-7-7XX parts are considered in conjunction with the requirements of the general
parts.
The particular requirements of this part of IEC 60364 supplement, modify or replace certain of
the requirements of the general parts of IEC 60364 being valid at the time of publication of this
part. The absence of reference to the exclusion of a part or a clause of a general part means
that the corresponding clauses of the general part are applicable (undated reference).
Requirements of other 7XX parts being relevant for installations covered by this part also apply.
This part can therefore also supplement, modify or replace certain of these requirements valid
at the time of publication of this part.
The clause numbering of this part follows the pattern and corresponding references of
IEC 60364. The numbers following the particular number of this part are those of the
corresponding parts, or clauses of the other parts of the IEC 60364 series, valid at the time of
publication of this part, as indicated in the normative references of this document (dated
reference).
If requirements or explanations additional to those of the other parts of the IEC 60364 series
are needed, the numbering of such items appears as 717.101, 717.102, 717.103, etc.
In the case where new or amended general parts with modified numbering were published after
this part was issued, the clause numbers referring to a general part in this Part 717 can no
longer align with the latest edition of the general part. Dated references should be observed.

717 Mobile or transportable units
717.1 Scope
The particular requirements as specified in this part of IEC 60364 apply to electrical installations
of mobile units or transportable units.
The requirements of this document are not applicable to:
– generating sets;
– pleasure craft;
– caravans and motor caravans;
– electrical circuits and equipment for automotive purposes.
717.2 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 60227-3, Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V - Part 3: Non-sheathed cables for fixed wiring
IEC 60228, Conductors of insulated cables
IEC 60332-1-2, Tests on electric and optical fibre cables under fire conditions - Part 1-2: Test
for vertical flame propagation for a single insulated wire or cable - Procedure for 1 kW pre-mixed
flame
IEC 60364-1:2025, Low-voltage electrical installations - Part 1: Fundamental principles,
assessment of general characteristics, and definitions
IEC 60364-4-41:2005, Low-voltage electrical installations - Part 4-41: Protection for safety -
Protection against electric shock
IEC 60364-4-41:2005/AMD1:2017
IEC 60364-4-44:2024, Low-voltage electrical installations - Part 4-44: Protection for safety -
Protection against voltage disturbances and electromagnetic disturbances
IEC 60364-5-51:2005, Electrical installations of buildings - Part 5-51: Selection and erection of
electrical equipment - Common rules
IEC 60364-5-52:2009, Electrical installations of buildings - Part 5-52: Selection and erection of
electrical equipment - Wiring systems
IEC 60364-5-53:2019, Low-voltage electrical installations - Part 5-53: Selection and erection of
electrical equipment - Devices for protection for safety, isolation, switching, control and
monitoring
IEC 60364-5-53:2019/AMD1:2020
IEC 60364-5-53:2019/ AMD2:2024
IEC 60364-5-54:2011, Low-voltage electrical installations - Part 5-54: Selection and erection of
electrical equipment - Earthing arrangements and protective conductors
IEC 60364-5-54:2011/AMD1:2021
IEC 60364-5-55, Electrical installations of buildings - Part 5-55: Selection and erection of
electrical equipment - Other equipment
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 61084 (all parts), Cable trunking systems and cable ducting systems for electrical
installations
IEC 61386 (all parts), Conduit systems for cable management
IEC 62262, Degrees of protection provided by enclosures for electrical equipment against
external mechanical impacts (IK code)
717.3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
– IEC Electropedia: available at https://www.electropedia.org/
– ISO Online browsing platform: available at https://www.iso.org/obp
717.3.1
mobile unit
structure containing an electrical installation, designed for being moved by its own means
EXAMPLE Outside-broadcasting van, emergency vehicle, catering lorry.
Note 1 to entry: In this document, the term "units" is used to mean "mobile units, transportable units or both".
717.3.2
transportable unit
structure containing an electrical installation, designed for being moved by external means
EXAMPLE Containers for office, dwellings, storage.
Note 1 to entry: In this document, the term "units" is used to mean "mobile units, transportable units or both".
717.1.5 Fundamental principles
717.1.5.2 Design
717.1.5.2.2 Power supplies
717.1.5.2.2.1 Characteristics of power supplies
Add the following:
Where both a DC system and AC system are earthed, inverters and power electronic converter
systems shall provide galvanic separation between the AC side and the DC side.
717.1.9 Types of electric systems
717.1.9.1 General
Add the following:
Where a galvanically separated electric system is established within the unit, any metallic
chassis, metallic frame or metallic enclosure of the unit bonded together shall be considered to
be the earth for that system, see Figure 1.

Key
1 metallic chassis of the unit
2 main earthing terminal (MET)
PE protective conductor
PB protective bonding conductor
Figure 1 – Example of an earth connection to the chassis
717.1.9.2 Types of electric systems for alternating current
717.1.9.2.1 TN systems
717.1.9.2.1.1 General
Add the following:
A TN-C system shall not be used.
717.1.9.2.2 TT system
717.1.9.2.2.1 General
Add the following:
Where a galvanically separated electric system is established within the unit, a TT system shall
not be used.
717.1.9.3 Types of electric systems for direct current
717.1.9.3.2 TN systems
Add the following:
A TN-C system shall not be used.
717.1.9.3.3 TT system
Add the following:
Where a galvanically separated electric system is established within the unit, a TT system shall
not be used.
717.4 Protection for safety
717.41 Protection against electric shock
717.410 Introduction
717.410.3 General requirements
717.410.3.4
Replace the text in this subclause with the following:
The incoming supply circuit of the unit shall be protected in accordance with Clause 412, from
the point of entry to the unit, up to and including the device providing another effective provision
for protection against electric shock provided within the unit.
NOTE 1 The means for providing an effective provision for protection against electric shock can be a residual
current device (RCD) or an overcurrent protective device (OCPD).
NOTE 2 The incoming supply circuit of the unit includes the isolating transformer, if any.
NOTE 3 Isolating transformers are covered by IEC 61558-2-4.
717.411 Protective measure: automatic disconnection of supply
717.411.3 Requirements for fault protection
717.411.3.1 Protective earthing and protective equipotential bonding
717.411.3.1.2 Protective equipotential bonding
Add the following:
Any metallic chassis, metallic frame or metallic enclosure of a unit shall be connected to the
main earthing terminal of the unit.
717.411.3.2 Automatic disconnection in case of a fault
717.411.3.2.1
Add the following:
Where an isolating transformer is not provided in the unit for the incoming supply circuit, all
circuits within the unit shall be protected by a residual current protective device (RCD) located
as close as possible to the entry point within the unit.
717.411.3.3 Further requirements for socket-outlets and for the supply of mobile
equipment for use outdoors
Replace the text in this subclause with the following:
Additional protection by means of an RCD with a rated residual operating current not exceeding
30 mA shall be provided for final circuits supplying:
– AC socket outlets with a rated current not exceeding 32 A; and
– AC mobile equipment for use outdoors with a current rating not exceeding 32 A.
717.44 Protection against voltage disturbances and electromagnetic disturbances
717.443 Protection against transient overvoltages of atmospheric origin or due to
switching
717.443.4 Overvoltage control
Replace the text in this subclause with the following:
Where the unit is intended to be connected to a distribution network, protection against transient
overvoltage shall be provided.
717.5 Selection and erection of electrical equipment
717.51 Common rules
717.512 Operational conditions and external influences
717.512.2 External influences
717.512.2.101 Presence of water (AD)
When installed outdoors, the equipment shall be selected with a degree of protection of at least
IPX4 in accordance with IEC 60529 in order to protect against water splashes (AD4).
717.512.2.102 Presence of solid foreign bodies (AE)
When installed outdoors, the equipment shall be selected or provided with a degree of
protection of at least IP4X in accordance with IEC 60529 in order to protect against the ingress
of small objects (AE3).
717.512.2.103 Impact (AG)
Equipment installed in public areas shall be protected against mechanical damage considering
an impact of high severity (AG3). This protection shall be provided in one or more of the
following ways:
– by locating the equipment to avoid damage by any reasonably foreseeable impact;
– by providing local or general mechanical protection of the equipment;
– by selecting and erecting equipment with a minimum degree of protection against external
mechanical impact of IK08 in accordance with the requirements of IEC 62262.
717.514 Identification
717.514.1 General
Add the following:
A permanent notice made of durable material shall be attached to a unit in a clearly visible
position, preferably near the appliance inlet. The notice shall state in clear and unambiguous
terms the following:
– the type of supply which may be connected to the unit and any limitations on use;
– the voltage rating of the unit;
– the number of live conductors and their configuration;
– the on-board earthing arrangement;
– prospective short-circuit current required from the external supply:
• minimum short-circuit current to be provided from any external source;
• maximum short-circuit current provided from all external sources that may be connected
in parallel;
– the maximum power requirement of the unit.
For socket-outlets individually protected by the protective measure electrical separation, a
durable indication shall be located adjacent to these socket-outlets stating that "only one item
of current-using equipment shall be connected".
717.52 Wiring systems
717.521 Types of wiring system
717.521.101 Type of cables
The wiring systems shall be installed using one or more of the following:
a) insulated single-core cables, with flexible conductors or with stranded conductors (minimum
of seven strands), in
• non-metallic conduits, or
• non-metallic cable trunking systems, or
• non-metallic cable ducting systems;
b) sheathed flexible cables.
All cables shall, as a minimum, meet the requirements of IEC 60227-3 and IEC 60332-1-2.
717.528 Proximity of wiring systems to other services
717.528.3 Proximity to non-electrical services
717.528.3.4
Add the following:
Only ELV equipment may be installed in any gas cylinder storage compartment, provided the
ELV equipment is:
– designed for use within such a compartment; and
– in accordance with the relevant standards for any hazardous area classification of the
compartment or housing; and
– not a source of ignition.
Where cables run through such a compartment, they shall be protected against mechanical
damage by installation within a conduit system complying with the appropriate part of the
IEC 61386 series or within a ducting system complying with the appropriate part of the
IEC 61084 series.
Where installed, this conduit or ducting system shall be able to withstand an impact equivalent
to AG3 without visible physical damage.
717.53 Devices for protection for safety, isolation, switching, control and monitoring
717.531 Equipment for protection against electric shock
717.531.2 Devices for automatic disconnection of supply
717.531.2.3 Residual current protective devices
717.531.2.3.3 Types of RCDs
717.531.2.3.3.1 Selection of type of RCD
Add the following:
The RCD required in 717.411.3.2.1 shall not be an RCD type AC.
717.534 Devices for protection against transient overvoltages
717.534.4 Selection and erection of SPDs
717.534.4.101 T1 SPDs where an isolating transformer is present in the incoming circuit
T1 SPDs shall be installed on the primary side of the isolating transformer and the following
requirements shall be fulfilled:
a) A dedicated SPD design and SPD connection scheme shall be applied so as not to impair
the protective measure specified in Clause 412.
b) The connection scheme of T1 SPDs shall provide a voltage protection level in accordance
with 534.4.4.2 between the incoming supply conductors and the incoming protective
earthing conductor. This incoming protective earthing conductor shall not be connected to
any other parts, nor to the transformer, nor to the local main earthing terminal of the unit.
An example of such a dedicated connection scheme is given in Figure 2.
c) The connection scheme of T1 SPDs shall provide a voltage protection level higher than the
required rated impulse voltage in accordance with overvoltage category IV between any
conductor of the incoming supply and the local main earthing terminal of the unit.
NOTE Overvoltage category IV represents one preferred rated impulse voltage step higher, as required for
double or reinforced insulation, when the supply complies with overvoltage category III.
d) The protective measure specified in Clause 412 applied between the origin of the incoming
supply circuit and the isolating transformer shall ensure an impulse withstand voltage higher
than 1,5 times the voltage protection level provided by the SPD connection scheme between
any conductor of the incoming supply and the local main earthing terminal of the unit.
e) For the proper selection of these T1 SPDs, the potential stresses (e.g. transient overvoltage
(TOV), impulse current, short-circuit current) that are expected for each mode of protection
within the connection scheme shall be assessed.
Key
1 SPDs for connection between live conductors of the incoming supply
2 voltage switching SPDs (to avoid galvanic connection) connected between incoming protective earthing
conductor (PE) and the main earthing terminal of the unit
3 local main earthing terminal of the unit
4 incoming supply
5 to the isolating transformer
Figure 2 – Example of a T1 SPD connection scheme
717.534.4.5 Protection of the SPD against overcurrent
717.534.4.5.1 General
Replace the second list item:
– as high as possible, to ensure a high surge current capability for the complete assembly
with the following new list item:
– considering the minimum short-circuit current at the point of installation;
717.534.4.6 Fault protection
Add the following:
The connection type of the SPD shall be CT2, except for an IT system or for a T1 SPD installed
on the primary side of the isolating transformer.
717.54 Earthing arrangements and protective conductors
717.542 Earthing arrangement
717.542.101 Current-using equipment located outside the unit
Where the unit is designed to supply current-using equipment located outside the unit from an
electric system established within the unit and the protective measure automatic disconnection
of supply is applied for protection against electric shock, easily accessible means for connecting
an earthing conductor to the main earthing terminal shall be provided. This provision is intended
for the user to connect to an earth electrode.
NOTE An electric system established within the unit can be provided by an isolating transformer, a generating set.
717.544 Protective bonding conductors
717.544.101 Type of conductor
Protective bonding conductors shall comply with at least Class 5 flexible conductors in
accordance with IEC 60228.
717.55 Other equipment
717.55.101
Appliance inlets used to connect the unit to an external supply shall provide protection against
electric shock equivalent to the protective measure of double insulation or reinforced insulation.
Appliance inlets shall comply with a degree of protection of at least IP 55 in accordance with
IEC 60529.
717.55.102
Socket-outlets installed on the outside of the unit shall provide a degree of protection of at least
IP 55 in accordance with IEC 60529.

Annex A
(informative)
List of notes concerning certain countries
Country Clause N° Nature Rationale Wording
(permanent (detailed
or less justificati
permanent on for the
according requeste
to IEC d country
directives) note)
DE 717.1.9.1  In Germany, replace Figure 1 by the following

Key
1 metallic frame or enclosure of the unit
2 main earthing terminal (MET)
3 equipotential bonding
4 (optional) local earthing rod
DE 717.410.3.4  Add:
NOTE Examples of configurations can be found in
Annex B of VDE 0100-717."
GB 717.411.4 UK has In UK, a PME earthing facility shall not be used as
specific the means of earthing for mobile and transportable
provisions units falling within the scope of this section except
for the where one of the following applies:
use of
(i) the installation is continuously under the
certain
supervision of a skilled person (electrically) or
supplies
instructed person (electrically), competent in such
according
work and the suitability and effectiveness of the
to the
means of earthing has been confirmed before the
Electricity
connection is made, or
Safety,
Quality
(ii) the unit is located within, or outdoors on an upper
and
storey or roof of, a building or structure containing
Continuity
the electrical installation which supplies the unit.
Regulatio
ns 2002
GB 717.443.4  In GB, Clause 717.443.4 is not applied.
FI 717.443.4  In Finland, the installation of protection against
overvoltages in mobile or transportable units shall be
subject to a risk assessment
NO 717.443.4  In Norway, the installation of protection against
overvoltages in mobile or transportable units shall be
subject to a risk assessment.
JP 717.531.2.3.3. In Japan, add the Type AC RCD (national standard)
1 to 717.531.2.3.3.1.
Country Clause N° Nature Rationale Wording
(permanent (detailed
or less justificati
permanent on for the
according requeste
to IEC d country
directives) note)
NL 717.521.11.10 In NL, Add:
717.52 Wiring systems
717.521 Types of wiring systems
717.521.11 Selection of cables
717.521.11.101
Electrical cables shall be selected and applied in
accordance with Table 700.A.1 in Appendix 700.A,
provided they are suitable for the applicable external
influences.
NO 717.534.4.6  In Norway, the connection type of SPD shall be CT2.
AU 717.542  In Australia, the provision of, and connection to, an
earth electrode is not required or recommended
NZ 717.542 New In NZ, for an isolated supply, the provision of, and
connection to, an earth electrode is not required or
Zealand
has recommended.
specific
provisions
for mobile
and
transporta
ble units
that do
not
include
the need
to
reference
the main
earthing
terminal
to the
general
mass of
earth
GB 717.55.101  In GB, Plugs and socket-outlets shall comply with
IEC 60309-1, IEC 60309-2, BS 1363-1 or BS 1363-2,
except those dedicated for special equipment, such
as broadcasting equipment where combined
connectors for information signals and power supply
are used.
Lighting support couplers, clock connectors, and
shaver outlets intended for use within the unit are not
precluded.
NO 717.55.101  In Norway, socket-outlets in accordance with
IEC 60884-1 shall comply with NEK 502.

Bibliography
IEC 60309-1, Plugs, fixed or portable socket-outlets and appliance inlets for industrial
purposes - Part 1: General requirements
IEC 60309-2, Plugs, fixed or portable socket-outlets and appliance inlets for industrial
purposes - Part 2: Dimensional compatibility requirements for pin and contact-tube accessories
IEC 61558-2-4, Safety of transformers, reactors, power supply units and combinations thereof -
Part 2-4: Particular requirements and tests for isolating transformers and power supply units
incorporating isolating transformers for general applications

___________
SOMMAIRE
AVANT-PROPOS . 2
INTRODUCTION . 4
717 Unités mobiles ou transportables . 5
717.1 Domaine d’application . 5
717.2 Références normatives . 5
717.3 Termes et définitions . 6
717.4 Protection pour assurer la sécurité . 8
717.41 Protection contre les chocs électriques . 8
717.410 Introduction . 8
717.411 Mesure de protection: coupure automatique de l'alimentation . 8
717.44 Protection contre les perturbations de tension et les perturbations
électromagnétiques . 9
717.443 Protection contre les surtensions transitoires d’origine atmosphérique ou
dues à des manœuvres . 9
717.5 Choix et mise en œuvre des matériels électriques . 9
717.51 Règles communes . 9
717.512 Conditions de service et influences externes . 9
717.514 Identification . 10
717.52 Canalisations électriques . 10
717.521 Types de canalisations électriques . 10
717.528 Voisinage des canalisations avec d'autres services . 11
717.53 Dispositifs de protection pour assurer la sécurité, le sectionnement, la
coupure, la commande et la surveillance . 11
717.531 Matériel de protection contre les chocs électriques . 11
717.534 Dispositifs de protection contre les surtensions transitoires . 11
717.54 Mises à la terre et conducteurs de protection . 13
717.542 Mises à la terre . 13
717.544 Conducteurs d'équipotentialité . 13
717.55 Autres matériels . 13
Annexe A (informative) Liste des notes concernant certains pays . 14
Bibliographie . 16

Figure 1 – Exemple d'une connexion de terre au châssis . 7
Figure 2 – Exemple de schéma de raccordement d'un parafoudre T1. 12

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
Installations électriques à basse tension -
Partie 7-717: Exigences pour les installations ou emplacements spéciaux -
Unités mobiles ou transportables

AVANT-PROPOS
1) La Commission Électrotechnique Internationale (IEC) est une organisation mondiale de normalisation composée
de l'ensemble des comités électrotechniques nationaux (Comités nationaux de l'IEC). L'IEC a pour objet de
favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines de
l'électricité et de l'électronique. À cet effet, l'IEC – entre autres activités – publie des Normes internationales,
des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au public (PAS) et des
Guides (ci-après dénommés "Publication(s) de l’IEC"). Leur élaboration est confiée à des comités d'études, aux
travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les organisations
internationales, gouvernementales et non gouvernementales, en liaison avec l'IEC, participent également aux
travaux. L'IEC collabore étroitement avec l'Organisation Internationale de Normalisation (ISO), selon des
conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de l'IEC concernant les questions techniques représentent, dans la mesure du
possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de l'IEC intéressés
sont représentés dans chaque comité d'études.
3) Les Publications de l'IEC se présentent sous la forme de recommandations internationales et sont agréées
comme telles par les Comités nationaux de l'IEC. Tous les efforts raisonnables sont entrepris afin que l'IEC
s'assure de l'exactitude du contenu technique de ses publications; l'IEC ne peut pas être tenue responsable de
l'éventuelle mauvaise utilisation ou interprétation qui en est faite par un quelconque utilisateur final.
4) Dans le but d'encourager l'uniformité internationale, les Comités nationaux de l'IEC s'engagent, dans toute la
mesure possible, à appliquer de façon transparente les Publications de l'IEC dans leurs publications nationales
et régionales. Toutes divergences entre toutes Publications de l'IEC et toutes publications nationales ou
régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.
5) L'IEC elle-même ne fournit aucune attestation de conformité. Des organismes de certification indépendants
fournissent des services d'évaluation de conformité et, dans certains secteurs, accèdent aux marq
...

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