JN22（B）40.5/31.5 Indoor high voltage grounding switch
Release time：2017/10/31 Hits：5245
Introduction
1. Model No.: JN22B-40.5 / 31.5 high voltage earthing switch2. Standard: GB 1985-2004 AC HV disconnect switch and earthing switch, IEC62271-102:2002
3. Application: KYN61-40.5 HV switchgear and various types high voltage switchgear
4. Main function: Used for earthing protection
5. Central distance between poles: 300, 350, 400
Working Condition
1.Ambient temperature:-10~+40°C
2.Altitude: ≤1000m
3.Relative humidity: Day average relative humidity ≤95%， Month average relative humidity ≤90%
4.Earthquake intensity: ≤8degree
5.Appliable in the place without corrosive, flammable gas and water place
6.With no frequently intense vibrant place around.
|
Item |
Item | Data | |
| Rated voltage | kV | 40.5 | |
| Rated short time withstand current | kA | 31.5 | |
| Rated short circuit withstand time | s | 4 | |
| Tated short circuit making current | kA | 80 | |
| Rated peak withstand current | kA | 80 | |
| Rated insulation leve | 1 min power frequency withstand voltage | kV | 95 |
| Lighting impulse withstand voltage | kV | 185 | |
| central distance between poles | mm | 300,350,400 | |
| Item | E | L | D |
| JN22B-40.5/31.5-300 | 300 | 1100 | 696 |
| JN22B-40.5/31.5-350 | 350 | 1150 | 796 |
| JN22B-40.5/31.5-400 | 400 | 1200 | 896 |
