The explosion-proof classification of CT4 equipment surpasses that of BT4 equipment.
Klasa dhe Niveli | Temperatura dhe grupi i ndezjes | |||||
---|---|---|---|---|---|---|
- | T1 | T2 | T3 | T4 | T5 | T6 |
- | T~ 450 | 450≥T>300 | 300≥T>200 | 200≥T>135 | 135≥T>100 | 100≥T>85 |
I | Metani | |||||
IIA | Etani, Propani, Aceton, Fenetil, Ene, Aminobenzen, Tolueni, Benzeni, Amoniaku, Oksid karboni, Etil acetat, Acidi acetik | Butani, Etanol, Propileni, Butanol, Acidi acetik, Butyl Ester, Anhidridi acetik amil acetat | Pentani, Heksani, Heptani, Deçani, Oktani, Benzina, Sulfidi i hidrogjenit, Cikloheksani, Benzina, Vajguri, Naftë, Nafta | Eter, Acetaldehidi, Trimetilamina | Nitrit etilik | |
IIB | Propileni, Acetilen, Ciklopropani, Gazi i furrës së koksit | Epoksi Z-Alkani, Propan epoksi, Butadieni, Etileni | Dimetil Eter, Izopreni, Sulfidi i hidrogjenit | Dietileter, Dibutil Eter | ||
IIC | Gaz uji, Hidrogjeni | Acetilen | Disulfidi i karbonit | Nitrat etilik |
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, nafte, dhe hidrogjeni sulfide.
CT4 encompasses a broader range of less common eksplozive gazet, such as hydrogen and water gas at the CT1 level, acetylene at the CT2 level, and carbon disulfide at the CT4 level.