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首页> 外文期刊>Journal of Materials Engineering and Performance >Evaluation of Silicone Rubber Insulators used in High-Voltage Transmission Lines
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Evaluation of Silicone Rubber Insulators used in High-Voltage Transmission Lines

机译：高压输电线路中使用的硅橡胶绝缘子的评估

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Three long-rod silicone rubber composite insulators used in 230 kV power transmission lines were evaluated for aging affects. The insulators were obtained from various outdoor desert locations within Saudi Arabia where they had been in service for 6 years. Surface degradation associated with the aging process was analyzed by using Scanning Electron Microscopy (SEM) coupled with Energy Dispersive X-ray Spectroscopy (EDS), Fourier Transform Infra-Red Spectroscopy (FTIR), and Electron Spectroscopy for Chemical Analysis (ESCA). Electrical performance of insulators was evaluated by Rapid Flashover Voltage Tests (RFVT) and Pollution Severity Measurement Tests. Depending on their locations of service, the samples exhibited various types of pollutants at their surfaces. The analysis indicated that the insulator material showed localized surface degradation while there was no evidence of micro-cracking. Furthermore, it was noted that the electrical performance of the insulators was not significantly affected by exposure during the in-service period.
机译：评估了在230 kV输电线路中使用的三种长杆硅橡胶复合绝缘子的老化影响。绝缘子是从在沙特阿拉伯服务了6年的沙特阿拉伯各个室外沙漠地点获得的。通过使用扫描电子显微镜（SEM）结合能量色散X射线光谱仪（EDS），傅里叶变换红外光谱仪（FTIR）和化学分析电子光谱仪（ESCA）分析与老化过程相关的表面降解。绝缘子的电气性能通过快速闪络电压测试（RFVT）和污染严重度测试进行了评估。根据服务地点的不同，样品表面会显示出各种类型的污染物。分析表明，绝缘子材料显示出局部表面退化，而没有微裂纹的迹象。此外，应注意的是，在使用期间，绝缘子的电性能并未受到暴露的明显影响。

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