The explosion-proof lamp and lampshade should be able to automatically cut off the power supply before opening. However, due to the complexity of setting up interlocking devices and their difficulty in implementation, most explosion-proof lamps only have warning signs with the words "strictly prohibited from being opened with power" in prominent areas of the shell. Due to the fact that the surface temperature of the bulb is still very high after the power outage, there is still a risk of igniting explosive gas mixtures (mainly referring to the adjacent structure) if the lampshade is opened immediately. Therefore, incandescent lamps, high-pressure mercury lamps, and high-pressure sodium lamps, which are light sources with high surface temperature and can quickly open the cover, should pay attention to this point. Some explosion-proof fluorescent lamps have interlocking mechanisms for opening and powering off, providing convenience and safety assurance for maintenance work. Due to the fact that fluorescent lamps are cold light sources and do not have high surface temperatures, they can be opened immediately after power outage.

When replacing the explosion-proof lamp bulb (tube), the explosion-proof joint surface of the explosion-proof lamp should be properly protected and not damaged; After cleaning, the explosion-proof surface should be coated with phosphating paste or 2045-1 anti rust oil. It is strictly prohibited to apply other paints, and there should be no rust layer on the explosion-proof surface. If there is slight rust, there should be no pitting after cleaning. The sealing ring used for dust and water prevention must be intact, which is very important for increased safety explosion-proof lamps. If the sealing ring is severely damaged, it should be replaced with a sealing ring of the same specification and material, and if necessary, the entire lamp should be replaced. Pay attention to the integrity of the lampshade in the maintenance box, and replace it immediately if it is broken.