绝缘子的检查与试验方法讲座（六）——第六讲 绝缘子的抽样检验
Dianci bileiqi, 1987 一、概述由于绝缘子是电气设备的绝缘元件,它应具有绝缘和机械的性能,为了保证绝缘子满足各项机械和电气等性能的要求,对出厂的绝缘子都要进行检验。按照绝缘子产品标准的规定,绝缘子的检验分为逐个试验、抽查试验和型式试验。前两种试验是产品出厂时必须进行的试验,后一种试验是新产品试制定型时进行的试验。逐个试验（现行标准中称之为例行试验）是对所有制成的每一个绝缘子都要进行的试验,目的是剔除有制造缺陷的不良品,
刘树横
doaj
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Dianci bileiqi介绍了极端天气下某变电站多个避雷器底座断裂缺陷的发现和处理过程，检查到断裂痕迹均为新断面且个别内壁有裂纹。根据气象信息和运行记录，初步判断避雷器底座断裂的直接原因是瞬时大风。将避雷器底座送检，进行了性能试验，包括绝缘子孔隙性试验、弯曲负荷耐受试验和弯曲负荷破坏试验等。通过机械性能试验验证了故障原因的初判。文末总结了缺陷处理经验，提出了应对极端天气下突发情况的对策和措施。
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