Structure and performance
The high-voltage grounding switch JN15C.12/31.5 is an improved type of JN15.12. It is a new type of grounding switch specially designed for small cable space in the cabinet. Its performance meets the requirements of GB1985-89 "AC high-voltage isolation switch and grounding switch and IEC129" .
The main technical parameters
| Model Specifications | JN15C-12/31.5 | JN15C-12/40 | |
| Rated voltage (kV) | 12 | ||
| 4s short-time withstand current (kA) | 31.5 | 40 | |
| Rated short-circuit making current (kA) | 80 | 100 | |
| Rated peak withstand current (kA) | 80 | 100 | |
| Rated insulation level | Lightning impulse voltage (kV) | Phase, relative to 75, fracture 85 | |
| 1min power frequency voltage (kV) | Phase, relative to 75, fracture 85 | ||
Dimensions
| Model | A | B | C |
| JN15C-12/31.5-150 | 150 | 460 | 600 |
| JN15C-12/31.5-165 | 165 | 490 | 630 |
| JN15C-12/31.5-210 | 210 | 580 | 720 |
| JN15C-12/31.5-230 | 230 | 620 | 780 |
| JN15C-12/31.5-250 | 250 | 660 | 830 |
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