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.
Kondiĉa Kategorio | Klasifiko de Gaso | Reprezentaj gasoj | Minimuma Fajrera Energio |
---|---|---|---|
Sub La Mino | mi | Metano | 0.280mJ |
Fabrikoj Ekster La Mino | IIA | Propano | 0.180mJ |
IIB | Etileno | 0.060mJ | |
IIC | Hidrogeno | 0.019mJ |
Aplikebleco:
CT has the widest range of applicability.
Gas environment:
CT is an explosion-proof rating for acetylene and hidrogeno 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 eksplod-rezista nivelo.