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.
Vaziyat toifasi | Gaz tasnifi | Reprezentativ gazlar | Minimal yonish uchqun energiyasi |
---|---|---|---|
Kon ostida | I | Metan | 0.280mJ |
Kondan tashqaridagi zavodlar | IIA | Propan | 0.180mJ |
IIB | Etilen | 0.060mJ | |
IIC | Vodorod | 0.019mJ |
Applicability:
CT has the widest range of applicability.
Gas environment:
CT is an explosion-proof rating for acetylene and vodorod levels. 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 portlashga chidamli daraja.