JN15-12/31.5 High Voltage Earthing Switch (ES1-10/31.5)
Short Description:
JN15-12/31.5 series indoor earthing switch is a new design and improved product of our company according to the ES1 type, suitable with electric power system with 3- 12KV, 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.
Detail
Introduction
JN15-12/31.5 series indoor earthing switch is a new design and improved product of our company according to the ES1 type, suitable with electric power system with 3- 12KV, 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
| No. | Item | Units | Parameters | ||
| 1 | Rated current | kA | |||
| 2 | Rated short-time withstand current | kA | 31.5 | ||
| 3 | Rated circuit-time making current | kA | 80 | ||
| 4 | Rated peak withstand current | kA | 80 | ||
| 5 | Rated short-circuit duration | S | 4 | ||
| 6 | Rated insulation level | 1 min. PF withstand voltage | kV | To earth phase to phase | 65 |
| Lighting impulse withstand voltage | 125 | ||||
| 7 | Mechanical life | time | 2000 | ||
