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1 Rated voltage kV 1100
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 2400+900
To earth 2400
6 Rated 1min power frequency
withstand voltage kV Across open breaks 1100+635 To earth 1100
7 Rated switching impulse
withstand voltage kV Across open breaks 1675+900
To earth 1800
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