Where must explosion-proof lighting be used?

Today I saw another news on WeChat and Weibo about the explosion of a chemical factory. It probably meant that a lamp was broken and caused an explosion. At least 5 people have been killed and more than a dozen people have been injured. It is embarrassing. In these flammable and explosive environments, there should be more safety awareness, especially explosion-proof lighting, explosion-proof electrical appliances and other equipment should be installed in these environments. Don't be sloppy and take it lightly. So what is explosion-proof lighting? Where must explosion-proof lighting be used? Explosion-proof lighting refers to lamps that are used in dangerous places where flammable gas and dust exist, and can prevent arcs, sparks and high temperatures that may be generated inside the lamp from igniting the flammable gas and dust in the surrounding environment, so as to meet the requirements of explosion-proof. Also known as explosion-proof lighting fixtures, explosion-proof lighting. Different combustible gas mixture environments have different requirements for the explosion-proof grade and explosion-proof form of explosion-proof lighting, such as liquefied gas stations, chemical plants, spray booths, polishing and grinding workshops, automobile wheel polishing workshops, coal washing plants, garbage power plants, gas stations, Gas station, flour mill, ammonia reservoir, firecracker warehouse, explosive gun room, steel plant, gas station, paint warehouse, oil warehouse, clothing factory warehouse, chemical warehouse, fuel warehouse, fireworks workshop, metal polishing workshop, magnesium powder polishing workshop , Aluminum powder polishing workshops, tobacco warehouses, paper mills, dye rooms, pharmaceutical factories, thermal power plants, metallurgical plants, coal mine tunnels, coal storage areas and other flammable, explosive, and dusty air environments require explosion-proof lighting. The following two explosion-proof lightings are more intuitive to understand: 1. The appearance of the explosion-proof lighting is made of high-quality aluminum alloy die-casting, with a compact structure and high-pressure electrostatic spraying on the surface. 2. Explosion-proof lighting steel pipe or cable wiring, easy to install and maintain. 3. The explosion-proof lighting has a hard protective shell, shockproof and shockproof. 4. The joints of the external structure of the explosion-proof lighting fixtures are sealed with natural rubber. You can log in to the lighting factory website to learn more about explosion-proof lighting