AreaClassOne:Gasexplosion-proof And Dust Explosion-proof的National StandardInvincibleSame

"Explosive GasEnvironment"according toElectricalexplosion-proofNational StandardGB3836，ShouldUseEnhancedGasExplosion-proof Measures。

For "explosive dust atmospheres," measures should be taken for flammable and explosive dust according to the national standard GB12476 for electrical equipment, primarily focusing on protection.。

note: Common explosion-proof distribution boxes are mostly gas explosion-proof, with explosion-proof ratings of Exd II BT4 or Exd II CT4.。The applicable scope is for hazardous gases in Zone 1 and Zone 2.。The explosion-proof rating for dust distribution boxes is EX tD A21 IP65 T80℃, applicable to dust in Zone 20.。In addition to Zone 20, there are also Zone 21 and Zone 22.。

AreaClass2:EliminateGreaterMoreIndexGasExplosion-proof distribution boxEnclosure Protection Level (IP Code)LowInDust explosion-proof distribution box

according toEveryProductionExplosion-proof distribution box的explosion-proofPrinciple，GreaterMoreIndexGasExplosion-proof distribution box的Enclosure Protection Level (IP Code)LowInDust explosion-proof distribution box。If a gas explosion-proof distribution box is used in a dust explosion hazardous area, dust will enter the equipment and accumulate, hindering the safe operation of the distribution box and creating safety hazards. Of course, the enclosure protection rating of a gas explosion-proof distribution box can be raised for use in dust explosion hazardous areas, but this is costly and extremely uneconomical, as it wastes the flameproof, increased safety, and other functions of gas explosion protection.

AreaClassThree:Dust explosion-proof distribution boxAlsoInvincibleUpWithUsersInGasPerformanceexplosionHazardous Location

Because Dust explosion-proof distribution boxOnlyIsEnclosure Protection Level (IP Code)Cost-effectiveHigh And already， And InvincibleAbilityHinderPreventExplosive GasEntryItsShellDomestic， And nonFlameproof、Increased SafetyEtc.Explosion-proof Measures， So TheseTwoVariousExplosion-proof distribution boxDetermineInvincibleAbilityChangeUsers。

AreaClass4:Use ScopeInvincibleSame

TwoPioneerinUse ScopeSupremeAlsoWithVeryGreater的InvincibleSame，InvincibleUpMixingUsers，inPurchase买Gas Or Dust explosion-proof distribution box的WhenWeather， Certainly CriticalLeadingPlanClassBrilliantSelf己的Use EnvironmentIsbelong towhichOneVarious的。

The above is an introduction to the differences between gas explosion-proof and dust explosion-proof in explosion-proof distribution cabinets. For more related information, please visit Hualong Explosion-proof at www.hlfbdq.com/.