IEC 60364-4-42:2010 

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

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IEC 60364-4-42:2010+AMD1:2014 CSV

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Abstract

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.

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Relevant for

rural electrification

LVDC


Additional information

Publication typeInternational Standard
Publication date2010-05-19
Edition3.0
Available language(s)English/French
TC/SCTC 64 - Electrical installations and protection against electric shockrss
ICS29.120.50 - Fuses and other overcurrent protection devices
91.140.50 - Electricity supply systems
Stability date  2018
Pages42
File size1095 KB

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