1、Daily maintenance
In the daily maintenance maintenance, the following points need to be noted.
(1) explosion proof lamp, lampshade should be able to automatically cut off the power supply before opening. But because of the complexity of setting up interlocking devices, it is not easy to achieve, so most of the lamps and lanterns only in the shell of the obvious place to set "strictly prohibited to open with electricity" and other words of the warning sign. And because the surface temperature of the bulb is still very high after the power failure, such as immediately open the lampshade NSC9720A railroad tunnel light, there is still the risk of ignition of explosive gas mixtures (mainly refers to the explosion-proof structure), so incandescent lamps, high-pressure mercury lamps, high-pressure sodium lamps, these light sources with high surface temperature of the bulb, and can quickly open the cover of the lamps to pay attention to this point. The author's unit uses more CeY-1 explosion-proof fluorescent lamps have an interlocking mechanism to open the cover and power off, which provides convenience and safety for maintenance work. Because fluorescent lamps are cold light source lamps, there is no surface high temperature, and the cover can be opened immediately after power failure.
(2), in the replacement of light bulbs (tubes), explosion proof lamp of the explosion-proof joint surface should be properly protected from damage; after cleaning the explosion-proof surface should be coated with phosphate paste or 204-1 antirust oil, is strictly prohibited to paint other paints; explosion-proof surface shall not have a rust layer, if there is a lighter rust, after cleaning should not be pockmarked phenomenon. Used for dustproof, waterproof with the seal must be intact, which is very important for safety-enhancing lamps and lanterns. If the seal is seriously damaged, it should be replaced with the same specification and material, and if necessary, the whole lamp should be replaced. Inspection and repair should pay attention to whether the lampshade is intact, if there is a rupture to immediately replace.
