1 Rated voltage kV 800 2 Rated current A 4000、5000 3 Rated short-time withstand current kA 50/3s 4 Rated peak withstand current kA 125
5 Rated lightning impulse withstand voltage kV Across open breaks 2100+650 To earth 2100 6 Rated 1min power frequency withstand voltage kV Across open breaks 960+460 To earth 960 7 Rated switching impulse withstand voltage kV Across open breaks 1300+650 To earth 1550
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