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对某电厂升压站500 kV线路螺栓断裂事故进行分析,认为该螺栓因用材不当和表面加工质量不符合要求,且长期在腐蚀性环境中使用并承受交变弯曲应力作用,导致其发生腐蚀性疲劳断裂。
Analysis of a 500 kV line bolt breaking accident at a power station booster station shows that the bolt is corrosive due to improper material and surface processing quality, and its long-term use in corrosive environment and bear alternating bending stress Fatigue breaks.