Awọn yiyan dIIBT4 ntokasi si a Kilasi II, Ẹka B bugbamu-ẹri Rating.
II | B | T4 | Gb | IP64 |
---|---|---|---|---|
Mine I | Methane | T1 450℃ | Ma Extremely high level of protection | IP64 |
T2 300 ℃ | ||||
Mb High level protection |
||||
T3 200 ℃ | ||||
I Surface Materials | Propane | Ga Extremely high level of protection |
||
T4 135 ℃ | ||||
Ethylene | Gb High level protection |
|||
T5 100℃ | ||||
Hydrogen, Acetylene | Gc General level protection |
|||
T6 85 ℃ |
The prefix ‘d’ denotes a flameproof type of enclosure, ti a ṣe apẹrẹ ki eyikeyi bugbamu ti inu wa ninu laisi ibajẹ apade ati idilọwọ itankale bugbamu ni ita;
IIB ṣe pato ẹka ti gaasi ti a lo;
T4 signifies that the product’s maximum surface otutu remains below 130°C.