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Overview
JN15-12 indoor high voltage grounding switch is a product that has reached the domestic leading level. Its performance meets the requirements of GB1985-2004 "AC High Voltage Disconnecting Switches and Earthing Switches" and IEC129. It is suitable for 12kV and below AC 50Hz power systems. It can be used with various types of high voltage switchgear and can also be used as high voltage electrical equipment maintenance. For grounding protection. This type of switch can be used in conjunction with a live display device.
Model meaning
Normal use environment
1. The altitude does not exceed 1000m;
2. Ambient air temperature: upper limit +40°C, unlimited -10°C;
3. It is allowed to store and transport at 30°C;
4. The seismic intensity does not exceed 8 degrees;
5. No flammable, explosive, severe dust, chemical corrosion and severe vibration places.
The main technical parameters
| NO. | project | unit | project | |
| 1 | Rated current | kA | 12 | |
| 2 | Rated short-time withstand current | kA | 31.5 | |
| 3 | Rated short circuit duration | S | 4 | |
| 4 | Rated short-circuit making current | kA | 80 | |
| 5 | Rated peak withstand current | kA | 80 | |
| 6 | Phase center distance | mm | 210,230,250,275 | |
| 7 | Rated insulation level | 1min power frequency withstand voltage | kV | 42 |
| Lightning impulse voltage | kV | 75 | ||
Shape and installation dimensions
| Model | L | E | C |
| JN15-12/31.5-210 | 655 | 210 | 516 |
| JN15-12/31.5-230 | 710 | 230 | 556 |
| JN15-12/31.5-250 | 760 | 250 | 596 |
| JN15-12/31.5-275 | 810 | 275 | 646 |
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