Overview
The performance of JN15-12 indoor AC high-voltage grounding switch meets the requirements of GB1985 “AC high-voltage disconnector and grounding switch” and IEC60129. It is suitable for 10, 24, 40.5KV and below AC 50Hz power systems. It can be used as grounding protection during maintenance of high-voltage electrical equipment, and can also be used in conjunction with various types of high-voltage switchgear.
Operating Conditions
1. Altitude: ≤ 1000 meters;
2. The environment temperature: upper limit +40℃, lower limit -10℃;
3. Relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%;
Model and meaning
Technical Data
| Item | Unit | Parameter | |
| Rated voltage | kV | 12 | |
| Rated short time withstand current | kA | 31.5 | |
| Rated short circuit withstand time | s | 4 | |
| Rated short circuit making current | kA | 80 | |
| Rated peak withstand current | kA | 80 | |
| Rated insulation level | 1min power frequency withstand voltage | kV | 42 |
| Lightning impulse withstand voltage | 75 | ||
Overall and mounting dimensions(mm)
