Timetric electrical is a large-scale 40.5KV Earthing switch In door JN22B manufacturer and supplier in China. We have been specialized in High voltage equipment for many years. Our products have a good price advantage and cover most of the South America, Middle East, Africa, Southeast Asia markets. We are committed to delivering high-quality products that meet the specific needs of our customers while adhering to strict quality control measures throughout the entire manufacturing process. Looking forward to becoming your long-term partner in China.
An indoor earthing switch is a mechanical device used to discharge static charges from equipment and circuits during maintenance work. It plays a crucial role in ensuring the safety of maintenance personnel during power outage maintenance. The switch is designed to withstand current in abnormal situations like short circuits for a specific duration, while it does not carry load current in normal circumstances.
Item |
Unit |
Data |
||
Rated voltage |
kV |
40.5 |
||
Rated short-time withstand current |
kA |
31.5 |
||
Rated short-circuit duration |
s |
4 |
||
Rated short-circuit making current |
kA |
80 |
||
Rated peak withstand current |
kA |
80 |
||
Rated insulation level |
PF withstand voltage(1 min) |
kV |
Phase to earth |
95 |
Lightning impulse withstand voltage |
Phase to phase |
185 |
||
Mechanical endurance |
time |
2000 |
It can withstand current for a certain period of time under abnormal conditions (such as short circuits), but it does not pass through load current under normal circumstances.