BYS Explosion-proof plastic fluorescent shell is made of high quality steel molding, transparent polycarbonate cover is molded. The overall structure of the seal structure, with a strong waterproof, dustproof capabilities. Explosive gas mixtures dangerous places: 1 and Zone 2 Explosion-proof plastic fluorescent BYS BYS Explosion-proof plastic fluorescent scope of an explosive gas mixtures dangerous places: Zone 1, Zone 2. 2, explosive gas mixtures ⅡA, ⅡB, ⅡC. 3, temperature groups: T1 ~ T6.4, proof mark: ExdⅡBT4. Note: BYS Explosion-proof plastic fluorescent: proof fluorescent lights, energy-saving lamps BYS proof and corrosion-proof plastic fluorescent product features a shell made of high quality steel plate, transparent cover is molded polycarbonate. 2, the overall structure of the seal structure, with a strong waterproof, dustproof capabilities. 3, built-foot tube, fast instant start, the lamp can be modified according to user requirements feet. 4, the lamp can be equipped with emergency equipment on request, emergency equipment and emergency controller consists of two parts group consisting of nickel batteries, emergency controller with overcharge and over-discharge protection. 5, in line with GB3836-2000, IEC60079 standards. BYS Explosion-proof plastic fluorescent product technical parameters 1, Rated voltage: 220V50Hz2, proof mark: ExdIIBT42, protection class: IP544, cable diameter (f, mm): 10 ~ 145, Inlet thread (G "): 3 / 4 Ordering Information 1, all the lights with only the factory ceiling installation, if other needs, please indicate the two, any special requirements please specify