CAN/CSA C22.2 No.60079-31-2012 Electrical apparatus for use in the presence of combustible dust - Part 4: Type of protection "pD" (Adopted IEC 61241-4:2001, first edition, 2001-03, with Canadian deviations)
2012CAN/CSA C22.2 No.60079-31-2012 Electrical apparatus for use in the presence of combustible dust - Part 4: Type of protection "pD" (Adopted IEC 61241-4:2001, first edition, 2001-03, with Canadian deviations)