Shenhai Ffrwydrad-Prawf
The explosion-proof classification of CT4 equipment surpasses that of BT4 equipment.
| Dosbarth a Lefel | Tymheredd Tanio A Grŵp | |||||
|---|---|---|---|---|---|---|
| - | T1 | T2 | T3 | T4 | T5 | T6 |
| - | T＞ 450 | 450≥T＞300 | 300≥T＞200 | 200≥T＞ 135 | 135≥T＞ 100 | 100≥T＞85 |
| i | Methan | |||||
| IIA | Ethan, Propan, Aseton, Phenethyl, Ene, Aminobensen, Toluene, Bensen, Amonia, Carbon Monocsid, Asetad Ethyl, Asid asetig | Bwtan, Ethanol, Propylen, Butanol, Asid asetig, Ester Butyl, Amyl Acetate Acetic Anhydride | Pentan, Hecsan, Heptane, dadganu, Octane, Gasoline, Sylffid Hydrogen, Cyclohexane, Gasoline, cerosin, Diesel, Petroliwm | Ether, Asetaldehyd, Trimethylamin | Ethyl Nitraid | |
| IIB | Propylen, Asetylen, Cyclopropan, Nwy Ffwrn Coke | Epocsi Z-alcan, Epocsi Propan, Biwtadïen, Ethylene | Dimethyl Ether, Isoprene, Sylffid Hydrogen | Diethylether, Dibutyl Ether | ||
| IIC | Nwy Dwr, Hydrogen | Asetylen | Carbon Disulfide | Ethyl Nitrad | ||
BT4 is classified as a Class B temperature group, where the maximum surface temperature of T4-rated devices does not exceed 135°C. CT4 holds a Class C explosion-proof rating, comparable to BT4, and is suitable for environments with hazardous gases such as hydrogen and acetylene, maintaining a maximum surface temperature of 135°C.
Scope of Use
BT4 is suitable for common gases including methane, ethane, petrolewm, a hydrogen sulfide.
CT4 encompasses a broader range of less common ffrwydrol nwyon, such as hydrogen and water gas at the CT1 level, acetylene at the CT2 level, and carbon disulfide at the CT4 level.