Explosion-proof control boxlevelWithSeveral

Explosion-proof control box的Explosion-proof Ratingdivided intoⅡA、ⅡB、ⅡCThreeProductionlevel。The ⅡC level is higher than the ⅡB and ⅡA levels, and the price is also slightly higher.。Many customers are unclear about the selection of explosion-proof levels.。In fact, the explosion-proof level refers to the flammable and explosive gas mixtures present in the service environment.。For example, the explosion-proof level of hydrogen is ⅡCT1.。The level of carbon monoxide is ⅡAT1, so its explosion-proof control box is ⅡAT1, while in practice it is ⅡB level.。For specific classification, please refer to the "Introduction to Explosive Mixtures."。

举Analysis

SomeWorkshopneedincreasedPlus5ProductionExplosion-proof control box。Production WorkshopProductionEthanol。Then the level of the explosion-proof control boxes to be purchased must reach ⅡAT2 or above.。UpForⅡBT2-6 Or ⅡCT2-6。The commonly used method is ⅡBT4.。

Explosion-proof control boxlevelct4 And bt4AreaClass

1、levelInvincibleSame

CT4Explosion-proof electricMachine的Explosion-proof RatingIsExdⅡCT4，BT4Explosion-proof electricMachine的Explosion-proof RatingForExdⅡBT4，Ingress Protection (IP) RatingLowInCT4Explosion-proof electricMachine。

2、Use ScopeInvincibleSame

CTUpUsers的rangeIsRelatedFor Relatively widely的。

3、applicableGas AtmosphereInvincibleSame

CTIsAcetylene、Hydrogenlevel的Explosion-proof Rating，ifEnvironmentInsideWithAcetylene、HydrogenThesesomeGas，CriticalUsersCTlevel的Explosion-proof electricMachine。

BT cannot be used in workplaces with acetylene gas and is only a medium-level explosion-proof definition.。

Explosion-proof motors can be divided into two types: Class I and Class II. Class I is applicable to motor equipment operating in coal mines, and Class II is used for factory explosion-proof motor equipment.。

Class I explosion-proof electrical equipment is specifically used for underground coal mine operations, and since the gas in coal mines is methane, Class I electrical equipment is not further classified.。

ⅡVariousExplosion-proof electricMachineequipment，AccordingItssuitable forGasMixingOverallMineralMostGreatersafetyClearance Or MostSmallPointGasCurrentCost-performancedivided intoA、B、CThreeLevel（ Namely ⅡA、ⅡB、ⅡC）

CT4Explosion-proof electricMachine的CThenIsPlant-use的Accident思，T4ThenIsExplosion-proof electricMachineUpWithwithstandHigh Temperature的Temperature Class。

The surface temperature levels of CT4 and BT4 explosion-proof motors in ascending order are: T1 (450°C), T2 (300°C), T3 (200°C), T4 (135°C), T5 (100°C), T6 (85°C). 。

The above is an introduction to how many levels of explosion-proof control boxes exist and the differences between CT4 and BT4 explosion-proof control box levels. For more related information, please visit Hualong Explosion-Proof at www.hlfbdq.com/.。