... Voltage at 500/1000A impulse current,KV5KA2510KA2820KA3411Switching Current 30/60 Impulse Residual Voltage at 500/1000A21 Impulse ... system highest voltage,V<=50017Max.Partial discharge in the arrester at 1.05 time continuous <=10operating voltage,PC18Creepage ... distance,MM386NOTE:If arrester with procelain housing, type code should not include" ...