Shenhai e fakamoʻoni fakaʻauha
ʻOku fakafaʻahinga ʻa e sipinga BT4 ʻi he kalasi fakamoʻoni fakaʻauha B mo ha faʻahinga mafana ʻo e T4, stipulating that the equipment’s surface temperature cannot exceed 135°C.
| Kalasi mo e tuʻunga | Ignition e ʻea mo e kulupu | |||||
|---|---|---|---|---|---|---|
| - | 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 | Ethane, Kasa, Acetone, Phenethyl, Ene, Aminobenzene, Toluene, Benzene, ʻAmonaiá, Kaponi kaponi, Ethyl Acetate, Acetic ʻesiti | Butane, Ethanol, Propylene, Butanol, Acetic ʻesiti, Butyl Ester, Amyl Acetate Acetic Anhydride | Pentane, Hexane, Heptane, Decane, Octane, Penisini, Fakapaaki ʻo e Sulfide, Cyclohexane, Penisini, Kalasini, Diesel, Lolo fokotuʻu | ʻEta, Acetaldehyde, Trimethylamine | Ethyl Nitrite | |
| IIB | Propylene, Acetylene, Cyclopropane, Kasa fakanofo ʻo Kouki ʻovani | Epoxy Z-Alkane, Epoxy kasa, Butadiene, Ethylene | Dimethyl ʻEta, Isoprene, Fakapaaki ʻo e Sulfide | Diethylether, Dibutyl ʻEta | ||
| IIC | Kasa vai, Fakapaaki ʻo e | Acetylene | Kaponi Disulfide | Ethyl Nitrate | ||
ʻI he tafaʻaki ʻe taha, ʻOku maʻu ʻe he sipinga CT6 ha kalasi ʻoku ne fakamoʻoniʻi e fakaʻauha, 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.
Fekauʻaki mo e mafana ʻo e ʻea ngaahi faʻahingá, T6 represents the highest safety level, suggesting that a lower equipment surface temperature is preferable.
Ko hono ola, CT6 possesses a superior explosion-proof classification.