YFC-12KV-630A composite apparatus complies with related requirements in GB3804-2004"High voltage alternating-current switches for rated voltage above 3.6KV and less than 40.5KV", and GB16926-1997 "High voltage alternating current switch-fuse combinations"
Major loop:630A-20KA (4s),25KA(3s), Mechanical life: 5000 times
Ground loop: 20KA (2s), Mechanical life: 2000 times
Working condition
O Altitude is not more than 1000m, earthquake intensity is not more than 8 degrees
O Pollution resistance level:Ill
O Ambient temperature:-40 ℃~+140 ℃, relative humidity daily averag≤90%, monthly average≤ 90%
O Frequently vibrating installation sites, places with water vapor, gas, chemical corrosive deposits salt spray, dust and dirt, and fires, that significantly affect the performance of the mechanism and places with fire or explosion hazards are not suitable