Temperature of Insulators as Heated by Conductor

  title={Temperature of Insulators as Heated by Conductor},
  author={Osamu Fujii and Yosuke Mizuno and Katsuhiko Naito},
  journal={IEEE Transactions on Power Delivery},
In order to investigate temperature rise of transmission line insulators when the current carried by the line conductor is high, a series of laboratory experiments were carried out by flowing current in aluminum conductor steel reinforced by using current transformers. Remarkable temperature rise was not observed at porcelain and cement of insulators in spite of the high conductor temperature, suggesting almost no reduction in electrical and mechanical characteristics of insulators 


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