Introduction

JN17-12/40 (old type is JN15-12/40) series indoor high voltage earthing switch is a new design and improved product of our company according to the ES1 type, the structure is assembled, suitable with electric power system with 3-10KV, Three-phase, AC 50(60)Hz, support with 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 (sensor height:140mm)

3. Relative humidity: Day average relative humidity ≤95%

                                      Month average relative humidity ≤90%

4. Earthquake intensity: ≤8degree

5. Dirtiness degree: II