Introduction

JN22B-40.5/31.5 series indoor HV earthing switch is researched and developed by our company based on original JN15 type, supporting with electric power system 40.5KV, AC 50Hz, match KYN□-40.5 and other various kinds of HV switchgear and as earthing protection. It is manufactured comply with GB1985-2004 and IEC129 standard.

Working Condition

1. Ambient temperature:-10~+40℃

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.