Detection using frequency domain reflectometry of the permittivity change in a cable induced by the exposure to steam

Naoshi Hirai*, Yoshimichi Ohki

*この研究の対応する著者

研究成果: Conference contribution

抄録

The fault location method that the authors are developing possesses a very high spatial resolution. If the characteristic impedance of a cable is changed, for whatever reason, the location method can find its position. In other words, this method can detect the changes in characteristic impedance. Since the characteristic impedance is a function of the permittivity of the cable insulation, this method can detect the change in permittivity of the insulation non-destructively without disassembling the cable. This paper demonstrates the above, taking a 30-m coaxial cable and a 2.5-m safety-related cable for use in a nuclear power plant as two typical examples.

本文言語English
ホスト出版物のタイトルProceedings of 2020 International Symposium on Electrical Insulating Materials, ISEIM 2020
出版社Institute of Electrical Engineers of Japan
ページ190-193
ページ数4
ISBN(電子版)9784886864185
出版ステータスPublished - 2020 9 13
イベント2020 International Symposium on Electrical Insulating Materials, ISEIM 2020 - Virtual, Tokyo, Japan
継続期間: 2020 9 132020 9 17

出版物シリーズ

名前Proceedings of the International Symposium on Electrical Insulating Materials
2020-September

Conference

Conference2020 International Symposium on Electrical Insulating Materials, ISEIM 2020
国/地域Japan
CityVirtual, Tokyo
Period20/9/1320/9/17

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 電子材料、光学材料、および磁性材料

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