Relationship between Leakage Current and Pollution Deposits on the Surface of Polymeric Insulator

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概要

• 論文の詳細を見る

• Application of polymeric materials used for housing insulators is considered. However, because polymeric insulator is organic matter, the aged deterioration is anxious. The lifetime of polymeric insulator is influenced by environmental conditions such as ultraviolet, acid rain, and polluted deposits. A change of the surface condition of polymeric material causes the dry band arc discharge and the discharge may lower the insulation strength. To investigate the relationship between insoluble pollution and occurrence of dry band arc discharge, we performed a salt-fog test with ethylene vinyl acetate (EVA) samples. The results showed that the heavy erosion caused by frequent dry band arc discharges occurred even in the case of a light polluted condition. Additionally, a very characteristic increase tendency in leakage current with a period of about 5 h was observed during the mist period.

• 社団法人 電気学会の論文

著者

• Miyake Takuma

  University of Miyazaki

• Seo Yuya

  University of Miyazaki

• Sakoda Tatsuya

  University of Miyazaki

• Otsubo Masahisa

  University of Miyazaki

関連論文

• Relationship between Leakage Current and Pollution Deposits on the Surface of Polymeric Insulator
• Comparison of Degradation Phenomena on Silicone Rubbers Eroded by DC and AC Discharges
• Application of Thermal Analysis for Clarification of Degradation Characteristics of Silicone Rubber Exposed to Partial Arc Discharge
• Analysis of Electric Field Distribution on the Surface of Polymeric Material Exposed to Moisture
• Relationship between Leakage Current and Pollution Deposits on the Surface of Polymeric Insulator
• Comparison of Degradation Phenomena on Silicone Rubbers Eroded by DC and AC Discharges
• Assessing Long-term Reliability of Polymeric Housing Materials

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