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1 Rated voltage kV 252
2 Rated current A 2500、 4000、5000
3 Rated short-time withstand current kA 50/3s、63/3s
4 Rated peak withstand current kA 125、160
5 Rated lightning impulse withstand voltage kV Across open breaks 1050+200
To earth 1050
6 Rated 1min power frequency
withstand voltage kV Across open breaks 460+145
To earth 460
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