Technical Specifications
Product Overview
JN15 Series Earthing Switch
The JN15 series indoor high voltage earthing switch is engineered with an advanced, compact design to ensure reliable technical performance in high-voltage power systems. Designed for 12/24kV three-phase AC 50/60Hz environments, this switch provides essential short-circuit closing capabilities to protect electrical equipment. It serves as a critical safety component for grounding protection during the maintenance of high-voltage switchgear.
Electrical Ratings
- Rated Voltage
- 12 kV
- Rated Short-Time Withstand Current
- 31.5 kA
- Rated Short-Circuit Making Current
- 80 kA
- Rated Peak Withstand Current
- 80 kA
- Rated Short-Circuit Duration
- 4 S
Insulation and Durability
Mechanical Life
2,000 times
Operations
Insulation Levels
| Parameter | Value |
|---|---|
| Working withstand voltage (1min) | 6.5 kV |
| Lightning impulse withstand voltage | 125 kV |
Operating Conditions
Environmental Requirements
- Altitude: ≤ 1000 meters
- Ambient Temperature: -25°C to +40°C
- Earthquake Intensity: ≤ 8 degrees
- Relative Humidity: Daily average ≤ 95%, Monthly average ≤ 90%
- Pollution Level: Level II
Compliance
- Standards Compliance
- GB1985-2004IEC 62271-102:2002
