Explosion-proof rating:
Explosion-proof equipment with a CT4 rating is classified as Exd IIC T4. BT4 explosion-proof equipment is rated as Exd IIB T4, which is a lower explosion-proof rating than CT4 equipment.
Шарт категориясы | Газдын классификациясы | Өкүл газдар | От алдыруу учкунунун минималдуу энергиясы |
---|---|---|---|
Кендин астында | И | Метан | 0.280мЖ |
Кендин сыртындагы заводдор | IIA | Пропан | 0.180мЖ |
IIB | Этилен | 0.060мЖ | |
IIC | Суутек | 0.019мЖ |
Applicability:
CT has the widest range of applicability.
Gas environment:
CT is an explosion-proof rating for acetylene and суутек деңгээл. If there are gases like acetylene or hydrogen in the environment, CT-rated explosion-proof equipment is required. BT-rated equipment is not suitable for acetylene environments and is only considered a moderate explosion-proof level.