IEC 60364-7-753:2014

Low-voltage electrical installations - Part 7-753: Requirements for special installations or locations - Heating cables and embedded heating systems

IEC 60364-7-753:2014 applies to embedded electric heating systems for surface heating. It also applies to electric heating systems for de-icing or frost prevention or similar applications. Both indoor and outdoor systems are covered. Heating systems for industrial and commercial applications complying with relevant parts of IEC 60519, IEC 62395 and IEC 60079 are not covered. This second edition cancels and replaces the first edition published in 2005 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- the title has been changed from "Floor and ceiling heating systems" to "Heating cables and embedded heating systems" to align with the revised scope;
- the scope has been extended and now covers embedded electric heating systems for surface heating, also electric heating systems for de-icing or frost prevention or similar applications, and covers both indoor and outdoor systems. This includes heating systems for: walls, ceiling, floors, roofs, drainpipes, gutters, pipes, stairs, roadways, non-hardened compacted areas (e.g. football fields, lawns);
- for wall heating systems, this standard contains additional requirements (e.g. metal sheath/enclosure/grid) to protect against the effects of overheating caused by a short-circuit between live conductors due to penetration of an embedded heating unit;
- from heating units delivered from the manufacturer without exposed-conductive-parts, this standard requires a metallic mesh grid covering. This has been reduced to 3 mm for wall heating systems;
- this standard now requires that electric heating systems shall be selected and erected so as to avoid any harmful influence between the heating system and any electrical or non-electrical installations envisaged;
- and this standard covers surface temperatures and now refers the reader to the appropriate IEC guide.

Installations électriques à basse tension - Partie 7-753: Exigences pour les installations ou emplacements spéciaux - Câbles chauffants et systèmes de chauffage intégrés

L'IEC 60364-7-753:2014 s'applique aux systèmes de chauffage électriques intégrés pour le chauffage de surface. Elle s'applique aussi aux systèmes de chauffage électriques pour le dégivrage ou la prévention du gel ou pour des applications analogues. Les systèmes tant intérieurs qu'extérieurs sont couverts. Les systèmes de chauffage pour les applications industrielles et commerciales conformes aux parties applicables des normes IEC 60519, IEC 62395 et IEC 60079 ne sont pas couverts. Cette deuxième édition annule et remplace la première édition parue en 2005 et constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- le titre a été modifié de "Systèmes de chauffage par sol ou plafond" en "Câbles chauffants et systèmes de chauffage intégrés" pour être en cohérence avec le nouveau domaine d'application;
- le domaine d'application a été étendu et couvre maintenant les systèmes de chauffage électrique intégrés pour le chauffage de surfaces, les systèmes de chauffage électrique pour le dégivrage ou la prévention du gel ou des applications similaires, et couvre à la fois les systèmes intérieurs et extérieurs. Ceci inclut les systèmes pour: murs, plafonds, sols, toits, tuyaux d'évacuation, gouttières, tuyaux, escaliers, chaussées, zones compactées meubles (par exemple terrains de football, pelouses);
- pour les systèmes de chauffage installés dans les murs, la présente norme contient des exigences supplémentaires (par exemple gaine/enveloppe/grillage métallique) pour la protection contre les échauffements dus à un court-circuit entre conducteurs actifs pénétrant dans l'unité de chauffage intégré;
- pour les unités de chauffage fournies par le constructeur sans masse, la présente norme exige un recouvrement par un grillage métallique. Celui-ci a été réduit à 3 mm pour les systèmes de chauffage installés dans les murs;
- la présente norme exige maintenant que les systèmes de chauffage électrique soient choisis et mis en oeuvre de manière à éviter toute influence dommageable entre le système de chauffage et toute installation électrique ou non-électrique prévue;
- et la présente norme traite des températures de surface et renvoie maintenant le lecteur au guide approprié de l'IEC.

General Information

• Status: Published
• Publication Date: 06-May-2014
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 91.140.50 - Electricity supply systems
• Technical Committee: TC 64 - Electrical installations and protection against electric shock
• Drafting Committee: MT 2 - TC 64/MT 2
• Current Stage: PPUB - Publication issued
• Start Date: 15-Jun-2014
• Completion Date: 07-May-2014

Relations

• Revises: IEC 60364-7-753:2005 - Low-voltage electrical installations - Part 7-753: Requirements for special installations or locations - Floor and ceiling heating systems
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60364-7-753 ®
Edition 2.0 2014-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage electrical installations –
Part 7-753: Requirements for special installations or locations – Heating cables
and embedded heating systems
Installations électriques à basse tension –
Partie 7-753: Exigences pour les installations ou emplacements spéciaux –
Câbles chauffants et systèmes de chauffage intégrés

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IEC 60364-7-753 ®
Edition 2.0 2014-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage electrical installations –

Part 7-753: Requirements for special installations or locations – Heating cables

and embedded heating systems
Installations électriques à basse tension –

Partie 7-753: Exigences pour les installations ou emplacements spéciaux –

Câbles chauffants et systèmes de chauffage intégrés

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX M
ICS 91.140.50 ISBN 978-2-8322-1573-9

– 2 – IEC 60364-7-753:2014 © IEC 2014
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
753 Heating cables and embedded heating systems. 6
753.1 Scope . 6
753.2 Normative references . 6
753.3 Terms and definitions . 6
753.4 Protection for safety . 7
753.41 Protection against electric shock . 7
753.411 Automatic disconnection of supply . 8
753.413 Protective measure: electrical separation . 8
753.42 Protection against thermal effects . 8
753.423 Protection against burns . 8
753.424 Protection against overheating . 8
753.5 Selection and erection of electrical equipment . 9
753.51 Common rules . 9
753.511 Compliance with standards . 9
753.514 Identification . 9
753.515 Prevention of mutual detrimental influences . 9
753.52 Wiring systems . 10
753.520 Introduction . 10
753.522 Selection and erection of wiring systems in relation to external
influences . 10
Annex A (normative) Information for the user of the installation . 11
Annex B (informative) List of notes concerning certain countries. 12
Bibliography . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-VOLTAGE ELECTRICAL INSTALLATIONS –

Part 7-753: Requirements for special installations or locations –
Heating cables and embedded heating systems

FOREWORD
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International Standard IEC 60364-7-753 has been prepared by IEC technical committee 64:
Electrical installations and protection against electric shock.
This second edition cancels and replaces the first edition published in 2005 and constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) The title has been changed from "Floor and ceiling heating systems" to "Heating cables
and embedded heating systems" to align with the revised scope.
b) The scope has been extended and now covers embedded electric heating systems for
surface heating, also electric heating systems for de-icing or frost prevention or similar
applications, and covers both indoor and outdoor systems. This includes heating systems

– 4 – IEC 60364-7-753:2014 © IEC 2014
for: walls, ceiling, floors, roofs, drainpipes, gutters, pipes, stairs, roadways, non-hardened
compacted areas (e.g. football fields, lawns).
c) For wall heating systems, this standard contains additional requirements (e.g. metal
sheath/enclosure/grid) to protect against the effects of overheating caused by a short-
circuit between live conductors due to penetration of an embedded heating unit.
d) From heating units delivered from the manufacturer without exposed-conductive-pa
...