Proper Operation Of Low-voltage Pole-mounted Circuit Breakers Is Crucial For The Stable Operation Of The Power Grid.

Following standardized operating procedures when operating low-voltage power distribution systems can significantly improve the stability and safety of the overall power grid. For common low-voltage power distribution equipment, strictly following the operating sequence of Lv Pole Mounted Circuit Breakers, disconnecting switch, and bus disconnecting switch can help reduce the risk of misoperation.

Power outage and restoration operations should be performed in stages. The power outage procedure should first disconnect the circuit breaker, then open the load-side disconnecting switch, and finally disconnect the busbar-side disconnecting switch. When restoring power, the disconnecting switch and circuit breaker should be closed in reverse order. This operating procedure applies to on-site operations of low-voltage pole-mounted circuit breakers, providing a regulatory basis for ensuring the operation of the power distribution network.

During manual operation, if there is a grounding wire or a live circuit, it should be confirmed first that there is no voltage or that a grounding wire has been connected. If necessary, signs such as "Do Not Close, People Working" should be displayed.

Before power is restored, the status of all equipment should be checked, the disconnecting switches and circuit breakers should be confirmed to be in the correct positions, and voltage, current, and three-phase balance should be tested.