Explosion-proof lamps applicable places and selection standards

In some special places, due to the presence of flammable and explosive substances or environments, ordinary lighting fixtures may cause serious safety accidents. Therefore, explosion-proof lamps came into being as a special lighting equipment. Explosion-proof lamps can work safely and reliably in dangerous environments, provide necessary lighting for personnel, and ensure the normal progress of production and operations.

**Second, places suitable for using explosion-proof lamps**

1. Petrochemical industry

- There are a large number of flammable liquids, gases and steam in places such as refineries, chemical plants, and oil depots.

- In these areas, the explosion-proof level is usually required to be higher to prevent sparks, high temperatures, etc. from causing explosions.

2. Coal mining industry

- There are flammable gases such as gas in the mines, which are prone to explosion accidents.

- Lamps with specific explosion-proof levels need to be selected to adapt to the harsh environment in coal mines.

3. Pharmaceutical industry

- Flammable and explosive solvents and chemicals are used in some pharmaceutical processes.

- Explosion-proof lamps need to be installed in production workshops and storage areas.

4. Grain processing industry

- Grain dust may explode under certain conditions, such as flour mills, feed mills, etc.

- Lighting equipment must have explosion-proof performance.

5. Ship industry

- Fuel and flammable gases exist in the engine room, oil tank and other parts of the ship.

- Explosion-proof lamps can ensure lighting safety when sailing at sea.

**III. Differences in site classification and explosion-proof grade requirements**

1. Gas environment

- According to the type and concentration of flammable gas, it is divided into different hazardous areas, such as Zone 0, Zone 1 and Zone 2.

- Zone 0 is the most dangerous area, requiring explosion-proof lamps to have the highest explosion-proof grade; Zone 1 is second; Zone 2 is relatively less dangerous, and the explosion-proof grade requirements are also reduced accordingly.

2. Dust environment

- It is also divided into Zone 20, Zone 21 and Zone 22.

- Zone 20 has the highest dust concentration and the most stringent explosion-proof requirements.