JN15-24/31.5-210/275 indoor high voltage earthing switch
1.Used in indoor switchgear for the earthing protection.
2.Three phase earthing switch with phase pole distance of 210mm or 275mm, it is suitable 800mm MV indoor metal clad switchgear and 1000mm MV indoor indoor metal clad switchgear.
Operation environment
1.Altitude No more than 1000m
2.Surrounding temperature between -10°C to +40°C
3.Working situation no conductivity dust
4.No corrosive gas of effect insulation and destroy metal.
5.Without violent vibration and striking.
6.Have no explosive danger and fire
Specification
| Item | Unit | Data | ||
| Rated voltage | kV | 24 | ||
| Rated short-time withstand current | kA | 31.5 | ||
| Rated short-circuit duration | s | 4 | ||
| Rated short-circuit making current | kA | 80 | ||
| Rated peak withstand current | kA | 80 | ||
| Rated insulation level | PF withstand voltage (1 min) | kV | Phase to earthPhase to phase | 65 |
| Lightning impulse withstand voltage | 125 | |||
| Mechanical endurance | Time | 2000 | ||
