The explosion-proof classification of IIC is considered superior, encompassing the requirements for both IIB and IIA, with IIB rated above IIA.
Tilstandskategori | Gasklassificering | Repræsentative gasser | Minimum tændingsgnistenergi |
---|---|---|---|
Under Minen | jeg | Metan | 0.280mJ |
Fabrikker uden for minen | IIA | Propan | 0.180mJ |
IIB | Ethylen | 0.060mJ | |
IIC | Brint | 0.019mJ |