The electrical elements connected include circuit breaker disconnector and earthing switch current transformer voltage transformer lightning arrester bus etc.
连接的电气元件有断路器、隔离开关与接地开关、电流互感器、电压互感器、避雷器、母线等。
When closing the earthing switch on the bus-bas and transmission line, the operation is allowed only after verifying that no electricity is on the opposite side.
合母线侧及线路侧接地刀时，往往需要验明对侧无电后方允许操作。
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