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大灾过后,有这样一串数字。2012年1月,浙江省临安昌化、于潜地区突降大雪,导致全市18条10千伏线路发生故障,影响200余个台区,涉及11000余用户。同样的冰雪天气也使江西境内的26条35千伏及以上输电线路、3座500千伏变电站发生覆冰,线路最大混合雾凇厚度达35毫米。2012年7月21日,北京全市普降特大暴雨,引发部分地区山洪灾害。大雨中北京电网累计发生220千伏线路故障1起,110千伏线路故障3起,35千伏线路发生瞬时故障7起,永久性故障1起,10千伏配网、农网故障227起。2012年7月23日,台风“韦森特”登陆广东,广东电网共1471条线路发生跳闸。累计停电台区12490个、停电用
After the disaster, there is such a series of figures. In January 2012, Changhua, Lin’an, Zhejiang Province, caused heavy snowfall in the submarine area, resulting in the failure of 18 10-kilovolt lines across the city, affecting over 200 stations and involving more than 11,000 users. The same ice and snow weather also caused 26 outriggers of 35 kV and above transmission lines and 3 500-kilovolt transformer substations in Jiangxi Province to ice, with the maximum mixed fog thickness of 35 millimeters. July 21, 2012, Beijing plunged heavy rainfall caused some flash floods in some areas. In the heavy rain, a total of 220 kV line faults occurred in Beijing power grid, 1 fault occurred in 110 kV line faults, 7 instantaneous faults occurred in 35 kV lines, 1 occurred in permanent faults, and 227 faults occurred in 10 kV network. July 23, 2012, typhoon “Vicente ” landed in Guangdong, Guangdong power grid a total of 1471 lines trip. Total power outage 12490, power outages