... , explosion protected plug and receptacleApplicationDesigned for Explosive atmosphere Zone 1, Zone 2 Combustible dust Zone 20 , Zone 21, ... 3836.2,GB 3836.3,GB12476.1,IEC60079-0,IEC60079-1,IEC60079-7,IEC61241-1-1Explosion protection:ExdeIIBT6,ExdeIICT6,DIPA20TA,T6Rated ... 2 4.0 Acceptable Leakage current measuring instrument YZ-056 1 4.0 Acceptable Explosion-proof electric appliance commissioning ...