Shenhai Pasi-Faamaoniga
The explosion-proof classification of CT4 equipment surpasses that of BT4 equipment.
| Vasega Ma Tulaga | Tempera Fa'amumu ma Vaega | |||||
|---|---|---|---|---|---|---|
| - | T1 | T2 | T3 | T4 | T5 | T6 |
| - | T>450 | 450≥T＞300 | 300≥T＞200 | 200≥T＞135 | 135≥T＞100 | 100≥T＞85 |
| I | Methane | |||||
| IIA | Etana, Propane, Acetone, Phenethyl, Ene, Aminobenzene, Toluene, Benzene, Amonia, Carbon Monoxide, Ethyl Acetate, Acetic Acid | Butane, Ethanol, Propylene, Butanol, Acetic Acid, Butyl Ester, Amyl Acetate Acetic Anhydride | Pentane, Hexane, Heptane, Decane, Oktane, Gasolini, Hydrogen Sulfide, Cyclohexane, Gasolini, Kerosene, Tisele, Suauu | Eteru, Acetaldehyde, Trimethylamine | Ethyl Nitrite | |
| IIB | Propylene, Acetylene, Cyclopropane, Kesi Oven Coke | Epoxy Z-Alkana, Epoxy Propane, Butadiene, Ethylene | Dimethyl Eteru, Isoprene, Hydrogen Sulfide | Diethyleter, Dibutyl Eteru | ||
| IIC | Vai Kasa, Hydrogen | Acetylene | Carbon Disulfide | Ethyl Nitrate | ||
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, etana, suauu, ma hydrogen sulfide.
CT4 encompasses a broader range of less common mea pāpā kasa, such as hydrogen and water gas at the CT1 level, acetylene at the CT2 level, and carbon disulfide at the CT4 level.