Surge Arrester 2-Electrode-Arrester Preliminary data A61-A350XF Ordering code: T.
B.
D.
DC spark-over voltage 1) 2) Impulse spark-over voltage at 100 V/µs - for 99 % of measured values - typical values of distribution at 1 kV/µs - for 99 % of measured values - typical values of distribution 350 ± 20 < 750 < 680 < 900 < 750 10 20 10 > 40 100 > 10 < 1.5 < 20 < 0.5 ~ 60 ~ 1.5 -40 +90 40/ 90/ 21 350 YY O 350 YY O - Nominal voltage - Year of production - Non radioactive V % V V V V kA kA A A A G
