The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
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The Evaluation of Degradation Characteristics of Silicone Rubber for Outdoor by Leakage Current Monitoring

누설전류 모니터링에 의한 옥외용 실리콘 고무의 열화 특성 평가

  • 김정호 (성균관대 전기전자및컴퓨터공학부) ;
  • 송우창 (성균관대 전기전자및컴퓨터공학부) ;
  • 조한구 (한국전기연구원 신소재응용연구그룹) ;
  • 박용관 (성균관대 전기전자및컴퓨터공학부)
  • Published : 2001.02.01
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Abstract

The degradation process of silicone rubber was investigated by leakage current monitoring in Inclined-Plane method. DAS (Data Acquisition System) with 12-bit, 8-channel A/D converter was prepared. Average current, cumulative charge, current waveform and the number of peak pulses were measured on-line. And, FFT (Fast Fourier Transform) analysis was performed with stored current waveform. Besides, maximum erosion depth was measured in order to use as the indicator of the degradation process. So, the results of leakage current components and maximum erosion depth measurements were compared to find one or more components which have trends of changing similarly to that of erosion process. The result suggests that the ratio of peak current to r.m.s. current, harmonic contents and the number of peak pulses are well corresponding with the degradation process.

Keywords

References

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