Audited Supplier
Earthing System
High Voltage
High Voltage Transmission Line
Direct Earthing Method
Meidum
12kv
40ka
4s
Aierway
Wooden Box
China
8535210000
Product Description
JN17-12/40 indoor AC high voltage earthing switch is an advanced level product with high-tech parameters performance.After comprehensive evaluation,it conforms to GB1985 and IEC129 standard,applies to power system of 3-12kV and three-phase AC 50Hz. It owns short-circuit making capacity to protect other electric equipment not being damaged.Can be used with various high voltage switchgear;also play a protective role in the high-voltage electrical equipment overhaul.
| Rated voltage | 12KV |
| Rated short-time withstand current | 40KA |
| Rated short-circuit duration | 4s |
| Rated short-circuit making current | 80KA |
| Rated peak withstand current | 80KA |
| Mechanical endurance | 2000 |
Use environmental conditions
♦Ambient temperature: -10ºC ~ +40ºC
♦Altitude: ≤1000m
♦Relative humidity:Daily average ≤95% , Monthly ≤90%
♦Earthquake intensity: ≤8 degree
♦Pollution humidity:II