Explosion-proof products all have explosion-proof levels, and the explosion-proof form and applicable places of new products can be distinguished based on the explosion-proof level. For example, explosion-proof level Exd ⅡB T4 is introduced in detail below.

Ex:explosion-proofStandardIndicate。

d: The explosion-proof type is flameproof type.。There are also intrinsically safe types ia, ib; increased safety type e; oil-immersed type o; sand-filled type q; encapsulated type m; and composite types (such as the combinations commonly used in explosion-proof distribution cabinets).。

Ⅱ: Refers to the second category of explosion-proof electrical equipment.。This explosion-proof electrical appliance is suitable for explosive gas atmospheres other than coal mining.。(Coal mining belongs to Category Ⅰ.)。There is also Category Ⅲ: electrical equipment for explosive dust atmospheres other than coal mining.。Category ⅢA: flammable flyings; Category ⅢB: non-conductive dust; Category ⅢC: conductive dust.。

B:ⅡBLevelSodaStructure。AlsoWithⅡC And ⅡA。Category ⅡC is the highest level and is suitable for ⅡA and ⅡB.。Category ⅡB is suitable for Category ⅡA, but lower levels cannot be used for higher levels.。

T4: The temperature class is T4, with the maximum surface temperature of the equipment not exceeding 135°C.。

The above is a basic introduction to what the explosion-proof level Exd ⅡB T4 means. For more latest information, please visit Hualong Explosion-Proof at www.hlfangbao.com.。