The explosion-proof classification of IIC is considered superior, encompassing the requirements for both IIB and IIA, with IIB rated above IIA.
Conditiecategorie | Gasclassificatie | Representatieve gassen | Minimale ontstekingsvonkenergie |
---|---|---|---|
Onder de mijn | I | Methaan | 0.280mJ |
Fabrieken buiten de mijn | IIA | Propaan | 0.180mJ |
IIB | Ethyleen | 0.060mJ | |
IIC | Waterstof | 0.019mJ |