Tha an sònrachadh dIIBT4 a’ toirt iomradh air Clas II, Ìre dìon-spreadhaidh Roinn B.
II | B | T4 | Gb | IP64 |
---|---|---|---|---|
Mine I | Meatan | T1 450 ℃ | Ma Extremely high level of protection | IP64 |
T2 300 ℃ | ||||
Mb High level protection |
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T3 200 ℃ | ||||
I Surface Materials | Propane | Ga Extremely high level of protection |
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T4 135 ℃ | ||||
Eitilein | Gb High level protection |
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T5 100℃ | ||||
Hydrogen, Acetylene | Gc General level protection |
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T6 85 ℃ |
The prefix ‘d’ denotes a flameproof type of enclosure, air a dhealbhadh gus am bi spreadhadh a-staigh sam bith ann gun a bhith a’ dèanamh cron air a’ chuairteachadh agus casg a chuir air spreadhadh a-muigh;
Tha IIB a’ sònrachadh an roinn de ghas a thathar a’ cleachdadh;
T4 signifies that the product’s maximum surface teòthachd remains below 130°C.