DOI QR코드

DOI QR Code

Thermal Properties According to Ionic Impurities of Semiconductive Material in Power Cable

전력케이블에서 반도전 재료의 이온성 불순물에 따른 열적 특성

  • 이경용 (원광대학교 전기전자 및 정보공학부) ;
  • 최용성 (원광대학교 전기전자 및 정보공학부) ;
  • 박대희 (원광대학교 전기전자 및 정보공학부)
  • Published : 2004.12.01

Abstract

In this paper, we have investigated thermal properties and Impurities content of specimens showing by changing the content of carbon black that is semiconductive materials for underground power transmission. Specimens were made of sheet form with the three of existing resins and the nine of specimens for measurement. Impurities content of specimens was measured by ICPAES(Inductively Coupled Plasma Atomic Emission Spectrometer). Heat capacity(ΔH) and melting temperature(Tm) were measured by DSC(Differential Scanning Calorimetry). The ranges of measurement temperature were from $0^{\circ}C$ to 20$0^{\circ}C$, and heating temperature was 4$^{\circ}C$/min. And then thermal diffusivity was measured by LFA 447. The measurement temperature was $25^{\circ}C$. Impurities content was highly measured according to increasing the content of carbon black from ICPAES results. And heat capacity and melting temperature from the DSC results were simultaneously decreased according to increasing the content of carbon black, while thermal diffusivity was increased according to increasing the content of carbon black. Because ionic impurities of carbon black containg Fe, Co, Mn, Al, and Zn were rapidly increasing kinetic energy by vibration of ionic impurities through the applied heat energy.

Keywords

References

  1. 한재홍, 김상준, 권오형, 강희태, 서광석, '반도전층내 불순물이 전력케이블의 신뢰도에 미치는 영향', 전기학회논문지, 46권, 1호, P.19, 1997
  2. E. F. Steennis and F. H. Kreuger, 'Water treeing in polyethylene cables', IEEE Trans. DEI, Vol. 25, p, 989, 1990
  3. M. T. Shaw and S. H. Shaw, 'Water treeing in solid clieletrics', IEEE Trans. DEI, Vol. 19, p. 419, 1993
  4. M. J Given, 'The role of ions in the mechanism of water tree growth', IEEE Trans. DEI, Vol. 22, p. 151, 1987
  5. 강대영, 오광영, 김용주, 박대희, '절연/반도전/절연층에 있어서 유전특성과 절연파괴 현상', 전기전자재료학회논문지, 11권, 6호 P.163, 1998
  6. 한전 표준 구매시방서, '22.9 kV 동심중성선 전력케이블', ES 126-650-664.,2001
  7. 한재홍, 서광석, 김상준, '에틸렌 비닐 아세테이트 공중합체/에틸렌 아크릴산 공중합체 블렌드의 이온투과 및 물리적 성질', 전기학회논문지, 45권, 9호, p.1282, 1996
  8. 박수진, 조기숙, M. Zaborski, L. Slusarki, '충전재-탄성체 상호작용. 6.산소 플리즈마 처리가 카본블랙 표면특성에 미치는 영향', 엘라스토머, 37권, 2호, p. 99, 2002
  9. 전용구, 김재경, 함덕순, 김진석, 'EVA의 Vinyl Acetate 함량변화에 따른 열적-기계적 성질 연구', 폴리머, 15권, 4호, p. 402, 1991