熱劣化促進したケーブルの熱分解ガスのGC-MS分析

抄録

In this study, accelerated thermal ageing tests of electrical cables for the nuclear power plants were carried out to evaluate effect of degradation of electrical cables on flammability. To evaluate flammability of electrical cables, the GC-MS (Gas Chromatography-Mass Spectrometry) method was applied. The Eco-material, polyethylene based electrical cables and the halogen free fire resistant cables were applied to this study. Temperature and period of accelerated thermal ageing tests of polyethylene based electrical cables were 90°C, 80°C, 70°C and 10, 20, 40 days, respectively. Temperature and period of accelerated thermal ageing tests of halogen free fire resistant cables were 100°C, 90°C, 80°C and 10, 20, 40 days, respectively. Evaluation results of GC-MS method of degraded sheath material of electrical cables were performed.