東海再処理施設 動力分電盤内制御用電源回路の分離による 給電系の安全性向上


英字タイトル:
Improving the safety of the power supply system by separating the power supply circuit for control in the power distribution board in Tokai reprocessing plant
著者:
後藤 翔 青木 賢二 森本 憲次 坪井 雅俊 磯崎 尚彦 古川 竜一 北川 修 (JAEA) 深谷 康弘 (検査開発)
発刊日:
公開日:
カテゴリ: 第17回
キーワードタグ:

概要

In order to confine radioactive materials inside the building, buildings, hot-cells and vessels are maintained at a lower air pressure than the atmospheric environment in Tokai Reprocessing Plant. For this purpose, air exhausters are continuously operated. However, during the periodic maintenance of the electric substation in September 2011, the incident in which the vessel ventilation including the spare machine of the highly radioactive liquid waste storage tank have not been started. In this paper, the cause of this incident and the detail of its countermeasures are discussed.


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