[2N06-09] Seismic PRA 2

[2N08] Study on the improved fragility evaluation method of electrical raceways (1) Outline of study plan

*Tomokazu Higuchi¹, Tatsuya Oku¹, Tomoyuki Fukuoka¹, Naotomo Maruyama², Shinji Kosugi³, Ryusuke Haraguchi⁴, Masatsugu Bando⁵, Ryuta Shimosakoda⁶, Shinichi Hisatomi⁶, Ryotaro Tatsuzawa⁶ (1. TOSHIBA ESS, 2. HGNE, 3. Hitachi, 4. MHI, 5. MHI NS Engineering, 6. TEPCO HD)

Keywords:Electrical raceway, Cable, Cable tray, Examination, Capacity, Fragility

In fragility evaluation of cable tray among electrical raceways, it is supposed that damage of cable tray body or its support structure led to cable damage and loss of electric function. But it is possible to think that damage of cable tray body or its support structure does not lead to cable damage and loss of electric function. If the capacity of electric function of cable is stronger than strength capacity of cable tray body or its support structure, it is thought that fragility of cable tray is improved. Therefore, examination for confirming capacity of electric function of cable was planned. Already, cable specification used in nuclear power plant was investigated, and load acted on cable was confirmed by analysis.