Accelerated weatherability of shed materials for composite insulators
Accelerated weatherability of shed materials for composite insulators
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复合绝缘子伞裙材料的加速耐候性
DOI：
10.1109/94.910431
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发表时间：
2001
影响因子：
3.1
通讯作者：
M. Kosakada
中科院分区：
文献类型：
--
作者：
Y. Hirano;T. Inohara;M. Toyoda;H. Murase;M. Kosakada
对空心复合绝缘子用棚料（低温硫化硅橡胶、高温硫化硅橡胶、乙烯-醋酸乙烯酯和三元乙丙橡胶）进行了加速老化试验，从表面和体积性能的变化评价了它们的耐候性。对于硅橡胶，研究了与保持拒水性相关的低分子量有机硅（硅油）含量的变化。结果表明，硅橡胶具有优异的耐候性，在长期的耐候性试验中仍保持较高的拒水性。使用等效模型，还进行了调查，如何在户外服务的棚表面沉积的不溶性污染物可以切断紫外线。
Shed materials for hollow composite insulators (low temperature vulcanized silicone rubber, high temperature vulcanized silicone rubber, ethylene vinyl acetate and ethylene propylene diene monomer) were examined through accelerated weathering tests and their weathering resistances were evaluated from changes of surface and bulk properties. For silicone rubber, changes in the content of low molecular weight silicone (silicone oil) related to maintaining water repellency were investigated. The results showed that silicone rubbers had excellent weathering resistance and kept high water repellency during long term weathering tests. Using an equivalent model, an investigation was also carried out on how non-soluble contaminations deposited on the surfaces of sheds in outdoor service could cut off UV rays.