Why do chemical plants prohibit the use of mobile phones?

When ordinary mobile phones are in use, they will generate RF sparks due to high-frequency electromagnetic waves, friction sparks due to friction, sparks generated by the ignition of the equipment itself and the explosion of the battery itself, and become the ignition source.

In many other occasions, such as "gas stations" and "inflammable and explosive places", you will find that "no use of mobile phones" signs are posted in eye-catching places, which may cause explosions and accidents; In the flammable and explosive places of chemical enterprises, mobile phones have become a hidden danger of safety accidents.

Explosion-proof mobile phones are generally used in these occasions. Explosion-proof mobile phones refer to mobile phones used in different flammable, explosive, dust and other environments according to different explosion-proof certification levels. Ex certification mark is affixed to the explosion-proof mobile phone, which indicates that the product has passed the certification of the national explosion-proof testing organization and can be used in a specific explosive gas environment. For example, the explosion-proof mobile phone IOODORF1(explosion-proof version) can be used in oil, gas and other occasions.