Flameproof fluorescent lamps 
 DGS flameproof fluorescent DGS-20/127Y (original KBY-20) Flameproof Fluorescent First, the scope and purpose DGS20/127Y (B) flameproof fluorescent lamps for gas and coal dust explosion in a gas mines, caverns for parking lots and electrical and mechanical, the center substation, roadway transportation, pumping stations and other places lighting purposes. Fluorescent by GB3836.1-2000 "Electrical equipment for explosive gas atmospheres General requirements", GB3836.2-2000 "Electrical apparatus for explosive gas atmospheres Flameproof" d "" and other relevant standard design, manufacturing and testing. Second, the structure outlined by the previous fluorescent lamp, lamp post and light, explosion-proof glass, metal shields and other components. 1) before the light is made of aluminum alloy shell, cover, starter, sockets and other components. Front cover with cable entry and an external ground screw; 2) after the lamp is made of aluminum alloy shell, cover, rectifier, outlets and other components. Explosion-proof glass before and after the sealing gasket located between the lamp body; light chamber cavity and wiring, lighting cavity with the outside world are proof joints meet the required proof. Third, the main parameters of 1, explosion-proof mark: Exd Ⅰ 2, Rated voltage: 127V 3, Rated power: 20W 4, the operating current :0.33-0 .37 A 5, luminous flux: 500LM 6, illumination: 1150LX 7, life: more than one year 5, the introduction of cable specifications: ￠ 8-12MM 6, Size: Diameter * H 115 * 810MM