NEN EN IEC 61241-4 : 2007
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 4: TYPE OF PROTECTION 'PD'
01-08-2015
01-12-2013
Provides requirements on the design, construction, testing and marking of electrical apparatus for use in combustible dust atmospheres in which a protective gas (air or inert gas) maintained at a pressure above that of the external atmosphere, as used to prevent the entry of dust which might otherwise lead to the information of a combustible mixture within enclosures which do not contain a source of combustible dust.
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