7月31日，天津市电力公司员工在北郊500千伏变电站内检查防汛设施。连日来，天津地区持续降雨考验着城市电力保障系统，天津主电网运行维护检修公司组织人员对所辖70座220千伏及以上变电站加强设备巡视、监测和防汛设施检查，确保主网安全度汛。新华社发（李津 摄）      July 31,，Tianjin power company employees in northern suburb in the substation of 500 kv check flood control facilities。In recent days，Tianjin area rainfall for test a city power security system，Tianjin Lord repair and maintenance of the operation of the electric company organization of personnel and 70 seats more than 220 kv substations and strengthen apparatus patrol、Monitoring and flood control facilities inspection，Ensure safety provids high alert。The xinhua news agency hair（Taken in） 

   7月31日，天津市电力公司员工在北郊500千伏变电站内检查防汛设施。新华社发（李津 摄）    July 31,，Tianjin power company employees in northern suburb in the substation of 500 kv check flood control facilities。The xinhua news agency hair（Taken in）