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一起500 kV线路多支复合绝缘子芯棒酥朽发热特征及缺陷起始原因分析

open access: yesDianci bileiqi
针对一起500 kV同塔双回线路多支复合绝缘子发热事件,开展了现场不同角度的无人机红外测试,对酥朽缺陷绝缘子的温差、发热区段数量及长度进行了分析,并对更换后的发热绝缘子开展外观检查、红外复测、剖检及工业CT、带护套水扩散试验,对比了实验室与现场红外测试差异,通过剖检对比了芯棒酥朽区段与发热位置的关系,并对酥朽原因进行了讨论。结果表明,现场38支酥朽复合绝缘子,94%的绝缘子为1处或2处芯棒发热、6%出现3处发热,79%的绝缘子发热区段长度最长为1至2个伞裙单元、21%存在3-5个伞裙单元的连续发热 ...
李特   +5 more
doaj  

[Progress in clinicopathological diagnosis of oral potentially malignant disorders]. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Cui Y   +5 more
europepmc   +1 more source

[Illness duration-related developmental trajectory of progressive cerebral gray matter changes in schizophrenia]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Chang X   +5 more
europepmc   +1 more source

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