Abstract To evaluate the degradation degree of silicone rubber (SiR) of electric power apparatus arranged for a long period of time in the coastal area, we repeatedly performed a salt fog aging test against SiR specimens. Then, the surface hydrophobicity and the leakage current were evaluated. The results showed that a required time for recovering hydrophobicity and a discharge ignition time until the leakage current is detectable are good indexes for degradation diagnosis. Especially, the required time for recovering hydrophobicity is useful.

中文翻译：

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硅橡胶降解诊断方法研究

摘要 为评价沿海地区长期放置的电力设备硅橡胶（SiR）的降解程度，我们对SiR试样反复进行了盐雾老化试验。然后，评价表面疏水性和漏电流。结果表明，恢复疏水性所需的时间和可检测到泄漏电流的放电点火时间是退化诊断的良好指标。特别是，恢复疏水性所需的时间是有用的。