四川电网汶川地震电力设施受灾调研分析

2008年5月12日，中国四川省汶川地区发生了自新中国成立以来破坏性最强、波及范围最广的一次8级大地震。地震不仅给当地人民生命财产安全带来严重威胁，也使电力设施遭受了严重损坏。中国电力科学研究院组织了专家考察组赴四川省进行了实地调研。作为此次调研的总结，文章论述了四川电网变压器、开关、支柱绝缘子、避雷器、变电站建构筑物等电力设施受灾情况，并对震灾原因进行了分析。地震烈度超过了设防标准是本次电力设施受损的主要原因，变电设备的结构和材料也使得其易受地震破坏。根据调查情况，提出了电力设施防震减灾建议。

Investigation and Analysis of Electric Equipment Damage in Sichuan Power Grid Caused by Wenchuan Earthquake

In 12th May 2008, Ms8.0 earthquake hit Wenchuan area, Sichuan province in China.It should be one of the most destructive earthquakes since P.R China established in 1949.The quake not only caused too much loss of life and wealth, but also quite damages to the electric equipments.For this reason, an expert group of China Electric Power Research Institute (CEPRI) is organized and went to Sichuan province for field investigation.As a summary of this investigation, in this paper the damaged equipments such as transformers, switchgears, post insulators, arresters and substation buildings are described.The analysis on the reason causing the damage in Sichuan power grid shows that the quake intensity beyond the equipment safe class is the principal cause of large-area damage of Sichuan power grid.The special structure and material of electric equipments make them damage easier in earthquake.According to the investigation, some advices for power system to reduce loss in earth quake are presented.