Only the switchgear door is closed, and closedown state is released, Permit that grounding switch is closed.

开关柜门关闭且当闭锁状态解除后，才允许关合接地开关。

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Only the switchgear door is closed, and closedown state is released, Permit that grounding switch is closed.

开关柜门关闭且当闭锁状态解除后，才允许关合接地开关。

youdao