Maintenance and repair of explosion-proof lighting fixtures

Before installation, explosion-proof lamps should be checked for explosion-proof type, grade, group, shell protection level, installation method, installation fastener requirements, etc. The installation of explosion-proof lamps should ensure reliable fixation, and the fastening bolts should not be replaced arbitrarily. The spring washers should be complete. Dust and waterproof sealing rings should be installed during installation. At the cable entrance, the cable should be tightly matched with the sealing gasket, the cable cross-section should be circular, and the sheath surface should not have any defects such as bumps or indentations. The excess water inlet should be blocked according to the explosion-proof type, and the compression nut should be tightened to seal the water inlet.

In daily maintenance, the following points should be noted:

Explosion proof lamps and lampshades should be able to automatically cut off power before opening. However, due to the complexity of interlocking device settings, it is not easy to implement, and most lighting fixtures only have a warning sign in a prominent position on the casing that reads "power off, open". Moreover, due to the high surface temperature of the light bulb after a power outage, there is still a risk of igniting explosive gas mixtures (mainly referring to flameproof structures) if the lampshade is immediately opened. Therefore, incandescent lamps, high-pressure mercury lamps, high-pressure sodium lamps, and other light bulbs with higher surface temperatures are light sources with higher surface temperatures. Attention should be paid to lighting fixtures that can quickly open the lid. The CEY-1 explosion-proof fluorescent lamp has an open cover interlocking mechanism and a power-off interlocking mechanism, providing convenience and safety assurance for maintenance work. Due to the fact that fluorescent lamps are cold light source lamps and do not have high surface temperatures, the lampshade can be opened immediately after power failure.

When replacing the light bulb (tube), the explosion-proof joint of the explosion-proof lamp should be properly protected and not damaged; The cleaned explosion-proof surface should be coated with phosphating paste or 204 ≤ 1 anti rust oil, and other paints should not be painted; The explosion-proof surface shall not have a corrosion layer. Explosion proof flashlights are used to provide mobile lighting for firefighting, electricity, industrial and mining enterprises, and other flammable and explosive places. Very suitable for various field operations, such as geological exploration, tourism exploration, border patrol, coastal defense patrol, rescue and disaster relief, field operations, tunnel operations, airport patrols, railway patrols, archaeological and fire command, criminal investigation, traffic acc