从2009年10月1日开始，国家将一部分的防爆电气设备纳入了CCC认证目录。在目录内的产品需要做防爆3C认证，采取“产品检测+工厂评审”的模式，既要做产品的型式试验，也要做工厂现场评审。而防爆合格证是……

Intrinsically Safe (“i”) is an explosion protection type that limits electrical energy. Even in the event of a fault, the energy generated is insufficient to ignite the surrounding explosive atmospher……

Explosion proof principle: Explosion proof certification standard: Routine testing items for explosion-proof certification: Shenzhen Zhongnuo Testing's service advantages:

Class III in explosion-proof certification refers to places with combustible dust. Combustible dust can be divided into conductive dust IIIC, non-conductive dust IIIB, and combustible fly ash IIIA acc……

Class II explosion-proof certification refers to the explosion-proof certification of equipment used in various non mining flammable and explosive gas environments. Flammable and explosive gases are c……

Ex components refer to explosion-proof equipment that is used in flammable and explosive places but does not have independent functions and cannot be used alone. Common explosion-proof enclosures, wir……