高耐圧ケーブル引下げ導線による建物内誘導磁界低減効果

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2019/06/01

タイトル(英語): Reduction Effect of Induced Magnetic Field in Building by using High-voltage Cable-type Down-conductor

著者名: 郷　顕宣（名古屋工業大学），安井　晋示（名古屋工業大学），土田　崇（（株）関電工 技術研究所）

著者名(英語): Akinobu Go (Nagoya Institute of Technology), Shinji Yasui (Nagoya Institute of Technology), Takashi Tsuchida (Reserch and Development Div., Kandenko Co., Ltd.)

キーワード: 高耐圧ケーブル，引下げ導線，建物内部磁界，安全離隔距離，FDTD法　　high voltage cable，down conductor，building internal magnetic field，safe separation distance，FDTD method

要約(英語): Special facilities such as data centers, computer centers, and hospitals with operating rooms require an extremely static electromagnetic environment. In this study, we investigated the effectiveness of an isolated type down-conductor for reduction of the magnetic field inside the building due to lightning strikes by using electromagnetic field analysis. We analyzed the four cases of the down-conductors such as building structures, bare wires, and two types of high-voltage insulated-cables which is sheath opened type and sheath shorted type. Using bare wires and sheath opened cable-type down-conductors, the internal magnetic field of the building reduced. This is because the lightning current flows in the opposite direction in the building structural pillars close to the down-conductors, and it cancel the internal magnetic fields. Comparing the bear conductor and the sheath opened cable-type conductor from the viewpoint of the overvoltage to the building structure, the overvoltage became smaller as the cace of using the cable-type duwn-conductor.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.139 No.6 （2019）

本誌掲載ページ: 428-434 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/139/6/139_428/_article/-char/ja/