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WhichExplosion-ProofLevelIsHigher,BorC|TechnicalSpecifications

Technical Specifications

Which Explosion-Proof Level Is Higher, B or C

The explosion-proof classification of IIC is considered superior, encompassing the requirements for both IIB and IIA, with IIB rated above IIA.

Condition CategoryGas ClassificationRepresentative gasesMinimum Ignition Spark Energy
Under The MineIMethane0.280mJ
Factories Outside The MineIIAPropane0.180mJ
IIBEthylene0.060mJ
IICHydrogen0.019mJ

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