Electric grounding switch JN15-12/31.5 12KV

1. Model No.: JN15-12/31.5 12KV high voltage electric earthing switch
2. Standard: GB 1985-2004 AC high voltage disconnect switch and earthing switch, IEC62271-102:2002
3. Application:KYN-28, KYN61-40.5 HV switchgear and various types HV switchgear, Indoor 3 phase AC 50(60)Hz power system.
4. Main function: Used for earthing protection
5.Using environment:
1,Ambient air temperature limit: +40, lower limit: -20 degrees centigrade
2,The altitude is not more than 1000mm. If more than 1000mm, please indicate when ordering;
3,The daily average value of relative humidity :≥95%, and the monthly average value :≥ 90%;
4,The intensity of the earthquake is not more than 8 degrees;
5.Mechanical life: 2000 times.
6,gradation for surface pollution: II.
7,others type electric earthing switch like 24kv, 40.5kv
Basic parameters:
Item |
Item | Data | |
Rated voltage | kV | 24 | |
Rated short time withstand current | kA | 31.5 | |
Tated short circuit making current | kA | 80 | |
Rated peak withstand current | kA | 80 | |
Rated insulation leve | 1 min power frequency withstand voltage | kV | 6.5 |
Lighting impulse withstand voltage | kV | 125 | |
Rated short circuit duration | S | 4 |


