The safety requirements of lighting lamps used in coal mines are the highest among all industrial lighting, and their safety coefficient requirements are also the highest.

The common explosion-proof of coal mining lights mainly include flameproof type, increased safety type and intrinsic safety type.

Under normal operation of the flameproof coal mining lights, the parts that can generate sparks and arcs are placed in the flameproof enclosure. The flameproof enclosure can withstand the internal explosion pressure without being damaged and can ensure that the internal flame gas propagates through the gap to reduce energy.

The increased safety coal mining lights will not produce arcs, sparks and dangerous high temperatures during normal operation. Protective measures are taken in the structure to improve the safety and reliability of the equipment.

The internal circuit of the intrinsically safe coal mining lights cannot ignite the explosive mixture under the specified conditions, the electric spark and the thermal effect produced under the normal working or the specified fault state.

In addition, it also includes positive pressure type, encapsulation type, oil-immersed type, sand-filled type and air-tight type which provide great safety guarantee for safety lights in the coal industry.