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IEC 60364-4-42:2010

Low-voltage electrical installations - Part 4-42: Protection for safety - Protection against thermal effects

Edition date: 2024-11-22
Cancelled
Available languages: Spanish, English, French
Summary: IEC 60364-4-42:2010 applies to electrical installations with regard to measures for the protection of persons, livestock and property against:
- thermal effects, combustion or degradation of materials, and risk of burns caused by electrical equipment,
- flames in case of a fire hazard being propagated from electrical installations to other fire compartments segregated by barriers which are in the vicinity, and
- the impairment of the safe functioning of electrical equipment including safety services.
This third edition cancels and replaces the second edition, published in 2001, and constitutes a technical revision. The main changes with respect to the previous edition are listed below:
- The scope now includes protection against all thermal effects and flames in case of a fire hazard being propagated from electrical installations to other fire compartments segregated by barriers which are in the vicinity.
- Requirements associated with escape routes for evacuation in an emergency have been expanded/modified.
- Requirements associated with the nature of processed or stored materials have been expanded/modified.
- Requirements associated with combustible constructional materials have been expanded/modified.
- Requirements associated with fire propagating structures have been modified slightly.
- New requirements for the selection and erection of installations in locations which might endanger precious goods have been added.
- Protection against overheating now includes space heating appliances.

La CEI 60364-4-42:2010 s'applique aux installations électriques pour ce qui concerne les mesures de protection des personnes, du bétail et des biens contre
- les effets thermiques, la combustion ou la dégradation des matériaux, et le risque de brûlure provoqués par un matériel électrique,
- la propagation des flammes en cas de danger d'incendie, depuis les installations électriques vers d'autres compartiments feu séparés par des barrières se trouvant à proximité, et
- les atteintes à la sécurité de fonctionnement des matériels électriques, y compris les services de sécurité.
Cette troisième édition annule et remplace la seconde édition, publiée en 2001, et constitue une révision technique. Les principales modifications par rapport à l'édition précédente sont les suivantes:
- Le domaine d'application inclut désormais la protection contre tous les effets thermiques et la propagation des flammes en cas d'incendie, depuis les installations électriques vers d'autres compartiments feu séparés par des barrières se trouvant à proximité.
- Les exigences associées aux chemins d'évacuation en cas d'urgence ont été développées/modifiées.
- Les exigences associées à la nature des matériaux traités ou stockés ont été développées et modifiées.
- Les exigences associées aux matériaux de construction combustibles ont été développées/modifiées.
- Les exigences associées aux structures propagatrices du feu ont été légèrement modifiées.
- De nouvelles exigences pour le choix et la mise en oeuvre des installations dans des emplacements comportant un danger pour les biens irremplaçables ont été ajoutées.
- La protection contre les surchauffes inclut désormais les appareils de chauffage.
ICS: 91.140.50-Electricity supply systems, 29.120.50-Fuses and other overcurrent protection devices
CTN: TC 64 - 1249

Standards Cancellations

Anula a IEC 60364-4-42:2001

Es anulada por IEC 60364-4-42:2024

Modificaciones Normas

Es modificada por IEC 60364-4-42:2010/AMD1:2014

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