Surge Arrester 2-Electrode-Arrester Preliminary data A81-A400X 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 400 ± 20 < 800 < 700 < 950 < 850 20 25 20 100 > 10 < 1.5 ~ 15 ~ 0.5 ~ 60 ~ 1.5 -40 +90 40/ 90/ 21 400 YY O 400 YY O - Nominal voltage - Year of production - Non radioactive V % V V V V kA kA A A GΩ pF V A
