地震に対する機器耐力　　電気品試験

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タイトル別名
  • Seismic Fragility Capacity of Equipment Electric Panel Test
  • ジシン ニ タイスル キキ タイリョク デンキヒン シケン

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説明

  The seismic probabilistic safety assessment (PSA) is an available method for evaluating the residual risk of nuclear plants, which are designed under definitive seismic design conditions. Our preliminary seismic PSA analysis has indicated that the malfunction of electric panels would have a significant influence on the core damage frequency (CDF). In recent years, there has been a growing desire to raise the reliability of the seismic PSA; thus, a higher seismic capacity of the electric panels is necessary. The Japan Nuclear Energy Safety Organization (JNES) tested eight kinds of main electric panels and thirty kinds of main electric parts at high acceleration, which considerably exceeds the design level. From the test results, JNES obtained precise seismic capacity data of the electric panels that have a significant effect on CDF. JNES also proposed a method of evaluating seismic capacity. The method can use the seismic capacity data of electric parts and the acceleration amplification ratios calculated from the FEM analysis. JNES expects that the seismic capacity data obtained from this study will increase the reliability of the seismic PSA.<br>

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