Sebutan dIIBT4 nujul kana Kelas II, Kategori B ngabeledug-bukti rating.
II | B | T4 | Gb | IP64 |
---|---|---|---|---|
Mine I | Métana | T1 450 ℃ | Ma Extremely high level of protection | IP64 |
T2 300 ℃ | ||||
Mb High level protection |
||||
T3 200 ℃ | ||||
I Surface Materials | propana | Ga Extremely high level of protection |
||
T4 135 ℃ | ||||
Étiléna | Gb High level protection |
|||
T5 100℃ | ||||
hidrogén, Asetilena | Gc General level protection |
|||
T6 85 ℃ |
The prefix ‘d’ denotes a flameproof type of enclosure, dirancang supados sagala ledakan internal dikandung tanpa ngaruksak kandang sareng nyegah panyebaran ledakan di luar.;
IIB nangtukeun kategori gas garapan;
T4 signifies that the product’s maximum surface suhu remains below 130°C.