1.1 This European Standard contains the specific requirements for the construction and testing of electrical apparatus with flameproof enclosure, type of protection 'd', intended for use in potentially explosive atmospheres.
1.2 This European Standard supplements European Standard EN 50 014 'General requirements', the requirements of which apply to electrical apparatus with flameproof enclosure.
1.3 This European Standard applies to metallic enclosures,
non-metallic enclosures and parts of enclosures where this is explicitly specified in this European Standard.