Шэнхай выбухаабаронены
In the realm of explosion-proof electrical certification, the “T” category designates temperature groups, where T1 signifies that the device’s maximum surface temperature remains below 450°C.
| III | C | T 135℃ | Db | IP65 |
|---|---|---|---|---|
| III Surface dust | T1 450℃ | Ma | IP65 | |
| T2 300℃ | Mb | |||
| T3 200℃ | ||||
| А Flammable flying flocs | Da | |||
| T4 135℃ | ||||
| Db | ||||
| B Non conductive dust | T2 100℃ | Dc | ||
| А Conductive dust | T6 85℃ |
Predominantly, explosion-proof electrical equipment is classified into temperature groups T4, T5, and T6. T3 classifications exist but are relatively rare.