适用范围Application I型:采用工程塑料压制而成,具有较强的防腐和防水 能,适用于增安型外壳中作引入装置用。 Type I: Made of engineering plastic,corrosion-proof and water-proof,it is usedas leading device in safety-increased shell. 1区、2区危场所. IIA、IIB、IIC类爆炸性气体环境 Can be used Zone 1 and Zone 2 dangerous places. Can be used in IIA,IIB,IIC group explosive atmosphere.