Explosion-proof lamps are widely used as light source equipment in the petrochemical industry where there are flammable and explosive dangerous gases or dust. From the perspective of the use area of explosion-proof lamps, there are Class II explosion-proof lamps used in Zone 1 and 2 in gas places, Class III explosion-proof lamps used in Zones 21 and 22 in dusty places, and I used in coal mines. Class explosion-proof lamps. From the explosion-proof structure, it is divided into flameproof type, increased safety type, complex type lamps, etc.; from the light source, it is divided into incandescent lamps, high-pressure mercury lamps, LED explosion-proof lamps, LED floodlights and so on.
Common flameproof LED lamps are mainly composed of wiring cavity, electrical cavity and light source cavity. The light source cavity, the electrical cavity and the wiring cavity are independent, which can effectively reduce the temperature rise of the light source cavity and the electrical cavity, and ensure the long-life operation of the lamp. When wiring, only the wiring cavity needs to be opened, which is convenient and safe for installation and maintenance. Explosion-proof LED lamps mainly achieve explosion-proof through the flame-proof shell and the flame-proof joint surface.
Explosion-proof electrical equipment has two major characteristics: one is to be explosion-proof and explosion-proof, that is, the explosion-proof casing of the equipment must have a certain strength; The flameproof surface roughness and other parameters meet the standard requirements. The explosion-proof structure of the shell of the explosion-proof LED explosion-proof lamp is composed of a shell and a transparent part of the lampshade.
Explosion-proof LED explosion-proof lamps must have clear and permanent explosion-proof marking information, that is to say, the explosion-proof information on the nameplate should be clearly marked, and the product nameplate information should include: product name, production unit name, production date, explosion-proof mark, explosion-proof certificate number Wait. Through the explosion-proof mark, we can judge whether the explosion-proof type and structure of the explosion-proof lamp are consistent. For example, the explosion-proof mark of a flame-proof LED lamp is Ex dIICT4, and the flame-proof joint surface is flat, and it is necessary to further check the relevant parameters to see if they meet the requirements.