Provides requirements on the design, construction, testing and marking of electrical apparatus for use in combustible dust atmospheres in which a protective gas, maintained at a pressure above that of the external atmosphere, is used to prevent the entry of dust which might otherwise lead to the formation of a combustible mixture within enclosures which do not contain a source of combustible dust. Also includes specific requirements for construction and testing, including protective requirements that apply to electrical apparatus with type of protection pressurization 'pD' intended for use in potentially combustible dust atmospheres.

VDE 0170-15-4 : 2007 - Identical

CEI EN 61241-4 : 2007 - Identical

NBR IEC 61241-4 : 2009 - Identical

BIS IS/IEC 61241-4 : 2001 - Identical

BS EN 61241-4 : 2006 - Identical

SANS 61241-4 : 1ED 2001(R2012) - Identical

AS/NZS 61241.4:2002 - Identical

I.S. EN 61241-4:2007 - Identical

PN EN 61241-4 : 2007 - Identical

SN EN 61241-4 : 2007 - Identical

NEN EN IEC 61241-4 : 2007 - Identical

DS EN 61241-4 : 2007 - Identical