Compared to the chemical industry, what kind of lamp explosion-proof class requirements higher, 5
CT4, BT4 explosion-proof lamp can not be usedThe explosion proof test of explosion proof lamp used in coal mine is different from CT4 and BT4 explosion proof lamp testCT4, BT4/6 explosion-proof lamp can only be used above the ground, can not be used under coal mineMine lamp lMb can only be used in coal mine, and can not be used instead of IICT4If this explosion-proof lamp passes lMb, llCT4 and two kinds of certification at the same time,So that can be used in the two land
Used in underground coal mines, gas (methane), coal dust explosion dangerous places of lamps, the best choice CT4 class.
Coal mine is explosion proof, chemical is waterproof, dustproof
