Gives 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, 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.
IEC 61241-4 Ed. 1.0 b:2001
Original price was: $157.00.$78.00Current price is: $78.00.
Electrical apparatus for use in the presence of combustible dust – Part 4: Type of protection “pD”
International Electrotechnical Commission , 03/07/2001
Pages: 45
