適用范圍Application I型:采用工程塑料壓制而成,具有較強的防腐和防水 能,適用于增安型外殼中作引入裝置用。 Type I: Made of engineering plastic,corrosion-proof and water-proof,it is usedas leading device in safety-increased shell. 1區(qū)、2區(qū)危場所. IIA、IIB、IIC類爆炸性氣體環(huán)境 Can be used Zone 1 and Zone 2 dangerous places. Can be used in IIA,IIB,IIC group explosive atmosphere.