防爆电动葫芦常见的防爆级别

Explosion proof grade of explosion-proof electric hoist

防爆电动葫芦常见的防爆级别是EXIIBT4

The explosion-proof level of explosion-proof electric hoist is EXIIBT4

其中：

Among them:

II：是非矿用爆炸性气体环境。

II: it is a non mining explosive gas environment.

B：气体分级(对不同的非矿用气体进行实验，通过最大隔爆间隙和最小燃点电流两个参数将爆炸性气体分为 A、B、C三组。A组最不易爆，B组居中，C组最易爆)

B: Gas Classification (for different non mining gas experiments), through the maximum flameproof gap and the minimum ignition current two parameters, the explosive gas is divided into three groups: A, B and C. The A group is the least explosive, the B group is in the middle, and the C group is most explosive.

T：代表温度组别(燃点不同)，T4是燃点在135-200摄氏度的气体。

T: on behalf of the temperature group (different ignition points), T4 is a gas at 135-200 degrees centigrade.