Sudden power outage measures for power lines in operation

If there is a sudden power outage in the running power line, corresponding measures should be taken according to the specific situation.

(1) Power failure in the incoming line. This type of power outage is mostly a temporary power outage of the power system. The main circuit breaker may not be opened, but the outlet switch must be pulled down to prevent accidents caused by sudden calls.

(2) There is a power failure in the two incoming lines. In this regard, the switching operation should be performed immediately, and the load (especially the important load) should be transferred to another incoming line, and the incoming line continues to supply power.

(3) The overhead distribution line fails to trip and power off. If the fault is caused by a fault in the overhead distribution line and a power failure occurs, if the current interrupt capacity of the switch is allowed, the switch can be closed once to restore the power supply as soon as possible. Because of the failure of overhead distribution lines, it is mostly temporary, and in most cases, the closing is successful. If it is unsuccessful, it indicates that there is a problem with the overhead line, and power failure maintenance should be carried out.