Explosion proof grade：
A.Temperature group
T1-T6 group:
Explosive environment with its maximum surface temperature is divided into T1-T6 group
T1 T2 T3 T4 T5 T6
450 ℃ 300 ℃ 200℃ 135 ℃ 100 ℃ 85℃
B.Device housing group
Flameproof “d”, flameproof equipment.
It has the housing can withstand an internal damage, and will not ignite from one or more gases or vapors .
1.Increased safety e
2.Oil-filled type o
3.Sand filled q
4.Encapsulation m
C.Two types of explosion – proof equipment
ClassⅠ: coal mine electrical equipment;
Class Ⅱ : In addition to coal, mine ;all other explosive gas environment with electrical equipment.
Class III: can be divided into ⅡA, ⅡB, ⅡC .Mark ⅡB can use in ⅡA condition; ⅡC can use in ⅡA, ⅡB conditions .
KBA127A flameproof explosion – proof Camera is a mature device, as a classic product that’s proven reliable.Constructed of stainless steel, long time stability at temperatures of 0 ℃ to 40 ℃.It can be applied in many coal mines, underground and other high-risk environments with flammable and explosive gas.
