Kev khiav hauj lwm d II CT4 pab kiag li lawm ua kom lub siab tshaj plaws kev khiav hauj lwm kub, uas nce kev nyab xeeb. Lub sij hawm “d” txhais tau tias cov khoom siv flameproof. Qhov ntsuas tawg-pov thawj rau CT4 yog qhov zoo dua.
Kub pawg ntawm cov khoom siv hluav taws xob | Qhov siab tshaj plaws qhov kub thiab txias ntawm cov khoom siv hluav taws xob (℃) | Gas / vapor ignition kub (℃) | Qhov ntsuas kub ntawm cov cuab yeej siv tau |
---|---|---|---|
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; ib | T6 |
T4-rated explosion-proof cov cuab yeej tuav tus qauv siab dua thiab tuaj yeem hloov pauv rau BT4-rated khoom siv; li no, siv CT4 es tsis txhob BT4 ua kom muaj kev ua raws cai thiab txhim kho kev nyab xeeb.