Yeyiphi iNqanaba loBuqhushumbo-bubungqina obuphezulu, BT4 okanye CT6

Imodeli ye-BT4 ihlelwe phantsi kweKlasi ye-Explosion-proof Class B kunye neqondo lokushisa le-T4, stipulating that the equipment’s surface temperature cannot exceed 135°C.

Iklasi kunye neNqanaba	Ubushushu bomlilo kunye neQela
-	T1	T2	T3	T4	T5	T6
-	T＞450	450≥T＞300	300≥T＞200	200≥T＞135	135≥T＞100	100≥T＞85
I	IMethane
IIA	I-Ethane, Ipropane, I-acetone, Phenethyl, Ene, Aminobenzene, Toluene, Benzeni, I-Amoniya, Ikhabhon monoxide, I-Ethyl Acetate, IAcetic Acid	Butane, I-Ethanol, Ipropylene, I-Butanol, IAcetic Acid, Butyl Ester, Amyl Acetate Acetic Anhydride	IPentane, Hexane, Heptane, Decane, I-Octane, Ipetroli, I-Hydrogen sulfide, Cyclohexane, Ipetroli, I-kerosene, Idizili, IPetroleum	Ether, IAcetaldehyde, I-Trimethylamine		Ethyl Nitrite
IIB	Ipropylene, Iacetylene, Cyclopropane, Igesi yeOveni yeCoke	Epoxy Z-Alkane, Epoxy Propane, Butadiene, Ethylene	I-Dimethyl Ether, I-isoprene, I-Hydrogen sulfide	Diethylether, Dibutyl Ether
IIC	Igesi yaManzi, Ihydrogen	Iacetylene			ICarbon Disulfide	Ethyl Nitrate

Ngokuchaseneyo, imodeli ye-CT6 inomgangatho wobungqina bokudubula kwiKlasi C, covering the requirements of BT4 and applicable to zones with dangerous gases like hydrogen and acetylene. T6 equipment must maintain a surface temperature no higher than 85°C.

Ngemimiselo yokuba ubushushu categories, T6 represents the highest safety level, suggesting that a lower equipment surface temperature is preferable.

Nje ngeziphumo, CT6 possesses a superior explosion-proof classification.