Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Characteristic Comparison of Raw Materials Used for Power Cable Insulation

전력케이블 절연층용 원재료의 특성비교

  • Oh, Woo-Jeong (Division of Materials Science and Metallurgy, Korea University) ;
  • Ko, Jung-Woo (Division of Materials Science and Metallurgy, Korea University) ;
  • Kim, Jong-Eun (Division of Materials Science and Metallurgy, Korea University) ;
  • Suh, Kwang-S. (Division of Materials Science and Metallurgy, Korea University) ;
  • Lee, Gun-Ju (Polymeric Materials Division, LG Cable & Machinery Ltd.)
  • 오우정 (고려대학교 재료.금속공학부) ;
  • 고정우 (고려대학교 재료.금속공학부) ;
  • 김종은 (고려대학교 재료.금속공학부) ;
  • 서광석 (고려대학교 재료.금속공학부) ;
  • 이건주 (LG전선연구소 고분자 연구실)
  • Published : 1997.11.29
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Abstract

Chemical structure and electrical properties such as water treeing and space charge accumulation of various raw materials(XLPE) used for power cable insulation were investigated. It was found that chemical structure was changed after crosslinking reaction and every materials have different amounts of DCP and antioxidant. Electrical properties were also changed after extraction using $CHCl_3$ and xylene. Water tree length was smaller with additives such as DCP and antioxidant and bigger with low molecular weight components of polyethylene than that of extracted samples. Heterocharge was changed into homocharge after extraction. This shows that additives and low molecular weight components of polyethylene cause the heterocharge.

Keywords