原子力発電所から撤去されたFR-EPDMケーブルの重大事故環境下における絶縁性能

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2022/09/01

タイトル(英語): Insulation Performance of a Cable Insulated with Flame-retardant Ethylene-propylene-diene Rubber Removed from a Nuclear Power Plant under Severe Accident Conditions

著者名: 渡辺　藍己（原子力規制庁長官官房技術基盤グループ），芳賀　明日香（原子力規制庁長官官房技術基盤グループ），皆川　武史（原子力規制庁長官官房技術基盤グループ），池田　雅昭（原子力規制庁長官官房技術基盤グループ），平井　直志（早稲田大学 材料技術研究所），大木　義路（早稲田大学 材料技術研究所）

著者名(英語): Aiki Watanabe (Regulatory Standard and Research Department, Secretariat of Nuclear Regulation Authority (S/NRA/R)), Asuka Haga (Regulatory Standard and Research Department, Secretariat of Nuclear Regulation Authority (S/NRA/R)), Takefumi Minakawa (Regulatory Standard and Research Department, Secretariat of Nuclear Regulation Authority (S/NRA/R)), Masaaki Ikeda (Regulatory Standard and Research Department, Secretariat of Nuclear Regulation Authority (S/NRA/R)), Naoshi Hirai (RIMST, Waseda University), Yoshimichi Ohki (RIMST, Waseda University)

キーワード: 原子力発電所，重大事故，ケーブル，絶縁性能_x000D_　　nuclear power plant，severe accident，cable，insulation performance

要約(英語): The insulation performance of cables removed from an actual plant was investigated in a simulated severe accident (SA) environment. The cable insulated with flame-retardant ethylene propylene diene rubber (FR-EPDM) was a safety cable in the plant. A similar FR-EPDM-insulated cable was aged artificially to the degree equivalent to what the removed cable would have been suffered. These cables were irradiated with 60Co gamma rays at a dose rate of 10 kGy/h for 50 hours at room temperature to simulate the radiation exposure during a SA. The cables were then exposed to a steam environment for 168 hours to simulate the SA. During the steam exposure, the insulation resistance of the cables was measured continuously. As a result, the minimum insulation resistance was about 108 to 109 Ωm in the two cables, indicating that both have sufficient insulation performance.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.142 No.9 （2022） 特集：第52回電気電子絶縁材料システムシンポジウム

本誌掲載ページ: 368-374 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/ieejfms/142/9/142_368/_article/-char/ja/