Porcelain jacket surge arrester:
Key Specifications/Special Features:

Type: Y5C-24, Y10C-24
Rated voltage r. M. S: 24KV
Continuous operating voltage r. M. S: 19.5KV
1/5u s steep current residual voltage(KV): 76.6(5kA), 80.9 (10kA)
8/20u s lighting impulse residual voltage(kV): 68.4(5kA), 75 (10kA)
30/60u s switching impulse residual voltage(kV): 52 (5kA), 54 (10kA)
2ms rectangular current(A): 200(5kA), 400(10kA)
4/10u s high current impulse(kA): 65(5kA), 100(10kA)
Insulation housing withstand voltage(kV)
Lightning impulse: 125
Power frequency: 55
Creepage distance(mm): 630.