Deziyasyon dIIBT4 la refere a yon Klas II, Kategori B evalyasyon eksplozyon-prèv.
II | B | T4 | Gb | IP64 |
---|---|---|---|---|
Mine I | Metàn | T1 450 ℃ | Ma Extremely high level of protection | IP64 |
T2 300℃ | ||||
Mb High level protection |
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T3 200 ℃ | ||||
I Surface Materials | Pwopan | Ga Extremely high level of protection |
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T4 135℃ | ||||
Etilen | Gb High level protection |
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T5 100℃ | ||||
Idwojèn, Asetilèn | Gc General level protection |
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T6 85℃ |
The prefix ‘d’ denotes a flameproof type of enclosure, fèt pou nenpòt eksplozyon entèn yo genyen san yo pa domaje patiraj la ak anpeche pwopagasyon eksplozyon deyò;
IIB presize kategori gaz yo itilize;
T4 signifies that the product’s maximum surface tanperati remains below 130°C.