No. | Item | Unit | Parameters | ||
1 | Rated Frequency | Hz | 50 | ||
2 | Rated Voltage | kV | 12 | ||
3 | Rated Current for Fuse of the same family | A | ≤100 | ≤200 | |
4 | Rated Breaking Current | kA | 12.5 | 16 | |
5 | Rated Short-Time Power Frequency Withstand Voltage | To Earth (Dry) | kV/min | 42/1 | |
Fracture (Dry) | 49/1 | ||||
To Earth (Wet) | 30/1 | ||||
Fracture (Wet) | 36/1 | ||||
6 | Lightning Impulse Withstand Voltage | To Earth | kV | 75 | |
Fracture | 85 | ||||
7 | Creepage Distance | mm | Not less than 300 (d-level) | ||
8 | Mechanical Life | Times | 500 | ||
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate. |