5月3日，国家电网秦皇岛电力公司输电工区员工在清扫电网设备。当日，国家电网秦皇岛电力公司输电工区员工对220千伏徐庄变电站至李庄变电站辖区内电网设施设备进行春季检修作业，确保春耕和夏季负荷高峰期间电网安全可靠运行。新华社发（杨建校 摄） On May 3,,State grid qinhuangdao power transmission project staff in cleaning the grid equipment.On the day,State grid qinhuangdao power for 220 kv power transmission project employees Xu Zhuang substation to li substation power facilities within their respective jurisdictions spring maintenance operations,To ensure safe and reliable operation of the spring and summer during the peak load power grid.Xinhua hair(Yang Jianjiao perturbation)

    5月3日，国家电网秦皇岛电力公司输电工区员工在清扫电网设备。新华社发（杨建校 摄） On May 3,,State grid qinhuangdao power transmission project staff in cleaning the grid equipment.Xinhua hair(Yang Jianjiao perturbation)

    5月3日，国家电网秦皇岛电力公司输电工区员工在清扫电网设备。新华社发（杨建校 摄） On May 3,,State grid qinhuangdao power transmission project staff in cleaning the grid equipment.Xinhua hair(Yang Jianjiao perturbation)