Ubufakazi bokuqhuma kwe-Shenhai
Ukuhleleka kwezilinganiso zokuvikela ukuqhuma kuqoshwa ngokuqondile njengo-A < B < C.
| III | C | T135℃ | Db | IP65 |
|---|---|---|---|---|
| III Uthuli olungaphezulu | T1 450℃ | Ma | IP65 | |
| T2 300℃ | Mb | |||
| T3 200℃ | ||||
| A Izihlahla ezindizayo ezivuthayo | Futhi | |||
| T4 135℃ | ||||
| Db | ||||
| B Non conductive dust | T2 100℃ | UDkt | ||
| C Uthuli lwe-conductive | T6 85℃ |
For the ‘T’ rating, it’s remembered by its numerical order: inani elikhulu, isilinganiso esiphezulu nesiphephile.
Ngakho-ke, isilinganiso sokuvikela ukuqhuma kwe-BT4 sidlula leso se-AT2.
It’s important to clarify that ‘T’ denotes the maximum surface izinga lokushisa of electrical devices. A T4 rating, set at 135°C, is applicable for eziqhumayo gases with flash points exceeding 135°C.