A new edition of IEC 60364-4-42 was published by the International Electrotechnical Commission. IEC 60364-4-42 ed3.1 Consol. with am1 applies to “Low-voltage electrical installations – Part 4-42: Protection for safety – Protection against thermal effects.” The new edition is available for purchase on the IEC’s website.
IEC 60364-4-42:2010+A1:2014 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.
*Description from the IEC website