Explosion proof lamps are a type of lighting fixtures with explosion-proof performance, bearing the symbol Ex. The sealing performance of explosion-proof lamps and the adoption of further protective measures in the structure have certain requirements for explosion-proof lamps in the country. Non explosion-proof lamps do not have the above requirements.

1. The explosion-proof category, level, and temperature group of explosion-proof lamps are specified in national standards.

2. According to the explosion-proof type, it can be divided into five main types: explosion-proof, increased safety, positive pressure, spark free, and dust explosion-proof. It can also be divided into other explosion-proof types and the above-mentioned types of explosion-proof

Explosive type combination or composite type and special type.

3. According to the type of electric shock protection, it can be divided into categories I, II, and III. Anti electric shock protection is to prevent the parts that are easily touched by the explosion-proof lamp housing from being electrified, causing electric shock to the human body or different potentials

The contact of the conductor generates electric sparks and ignites explosive mixtures.

Class A1- On the basis of basic insulation, connect easily accessible conductive parts that are not charged during normal operation to the protective grounding conductor in the fixed circuit.

Class B II - using double insulation or reinforced insulation as safety protection measures, without grounding protection.

Class III - Use a safe voltage with an effective value not exceeding 50V, and there will be no voltage value higher than this.