It is suggested that high resistance grounded method and automation arc blow-out coil parallel resistance grounded method should be used for power distribution system.

建议选择高阻接地方式及自动调谐消弧线圈并联电阻接地方式。

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Despite later cancelling its flights, the Irish carrier Ryanair claimed it had made a test flight through ash over Scotland and challenged a ruling some flights should be grounded.

BBC: NI flights cancelled as ash cloud approaches