SF420型避雷器资料

DC spark-over voltage

1)

420 V

± 20 %

Impulse spark-over voltage

at 100V/μs < 900 V

at 1 KV/μs < 1000 V

Service life

10 operations 50 Hz, 1 s 5 A

1 operations 50 Hz, 0.18 s (9 cycles) 15 A

10 operations 8/20 μs 5 kA

1 operation 8/20 μs 10 kA

1 operation 10/350 μs 1 kA

300 operations 10/1000 μs 100 A