How to prepare a tender for hazardous area security system with Ex-proof camera?
How to prepare a tender for hazardous area security system with Ex-proof camera?when you meet a project in hands,you need make sure which enviroment will application with the Explosion proof camera. First of all,Do you need it is proof level is IP68 and water-proof and dust-proof need with the ZONE1 ZONE 2,and the No.20,No.21 and No.22.Such as oil field,chemical plant,steamship,gas station,curative,gas storeroom and so on.