Uas theem ntawm Explosion-Proof yog yooj yim dua, CT2 LOS YOG CT4

Nws yog tshwm tag uas CT4 tuas ib tawg explosion-profo ntsuam xyuas. Notably, tawg-profo motors feature lub IICT4 tsim tab sis tsis muaj cov IICT2 marking.

Kub IEC/EN/GB 3836	Qhov kub tshaj plaws ntawm cov khoom T [°C]	Lgnition kub ntawm combustible tej yam khoom [°C]
T1	450	T>450
T2	300	450≥T>300
T3	200	300≥T>200
T4	135	200≥T>135
T5	100	135≥T>100
T6	85	100≥T>8

No distinction stems ntawm qhov kub classifications ntawm explosion-proof hluav taws xob li: T4 li yog tsim los tuav ib qhov kub tshaj plaws hauv qab 135°C, whereas T2 devices allow a maximum surface temperature up to 300°C, deemed excessively risky.

tshwj xeeb tshaj yog, CT4 is the preferred choice; CT2 is generally avoided.