Firstly, let's understand what an explosion-proof mobile phone is?
Explosion proof mobile phones are phones that do not form effective ignition sources in flammable and explosive environments, ensuring safe communication in such environments. It does not mean to prevent explosions in the surrounding environment, but rather that mobile phones will not become ignition sources or cause explosions when used in high-risk environments, so they will not explode even in special environments.
Secondly, the principle of explosion-proof mobile phones?
For a mobile phone, the following are the most likely factors to cause an effective ignition source: circuit short circuit or electric spark, internal or external short circuit of the battery, mechanical damage caused by dropping or reinstallation, any possible malfunction of semiconductor components, high temperature, static electricity.
Explosion proof mobile phones ensure the safety of users in flammable and explosive environments by adding protective circuits, increasing circuit board spacing, shielding and packaging electronic components, and using special materials to manufacture phone casings. This ensures that even in the event of a short circuit or failure, the energy generated by the electronic components inside the phone is insufficient to form an effective ignition source.
Finally, has it passed the explosion-proof certification?
The most important standard for an explosion-proof mobile phone is that the phone must pass the explosion-proof certification issued by a national authoritative inspection agency. At present, manufacturers selling explosion-proof mobile phones are sprouting up like mushrooms after rain, but many of them are "selling without license" or "selling with pictures". Please be careful not to fall into traps when buying explosion-proof mobile phones.
Please find attached the explosion-proof certificates for two DORLAND explosion-proof mobile phones:
We are ex certificates from China ex Authority and pretty similar to IECEx rules and standards.
CONTACT
Xiaoping Tian
International Marketing Mgr ( Strategic Partnership )
Telephone:+86-13910650041/+86-13801272160
WhatsApp:+8613910650041
E-mail:tian@dorland.com.cn