Shenhai Explosion-Proof
It’s evident that various explosive gases are categorized into specific temperature groups.
| Temperature group of electrical equipment | Maximum allowable surface temperature of electrical equipment (℃) | Gas/vapor ignition temperature (℃) | Applicable device temperature levels |
|---|---|---|---|
| T1 | 450 | ＞450 | T1~T6 |
| T2 | 300 | ＞300 | T2~T6 |
| T3 | 200 | ＞200 | T3~T6 |
| T4 | 135 | ＞135 | T4~T6 |
| T5 | 100 | ＞100 | T5~T6 |
| T6 | 85 | ＞85 | T6 |
Group T1 has an ignition temperature of 450°C, Group T2 at 300°C, Group T3 at 200°C, Group T4 at 135°C, Group T5 at 100°C, and Group T6 at 80°C.