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논문 기본 정보

자료유형
학술대회자료
저자정보
저널정보
한국철도학회 한국철도학회 학술발표대회논문집 한국철도학회 2009년도 추계학술대회논문집
발행연도
2009.11
수록면
3,382 - 3,395 (14page)

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초록· 키워드

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In comparison with Over-head electric power line, Underground electric power line system has benefits such as power supply and city environment beautification, so 22.9㎸ distribution electric power cable of KEPCO is installed around the metropolis highways. Also, the electric power cable that Urban railroad is using is stretched in a narrow underground space by using pipelines or troughs.
The electric power blackout paralyzes the function of subway in operational state as well as brings about social confusion. Furthermore, the weakness of XLPE cable, as a result of water tree thermal phenomenon, real life span compared with life expectancy is by far a long way and water tree thermal preventive measure has been constantly increasing up to now. Therefore, the necessity of the failure prevention of underground electric power cable is urgently needed and the reliability improvement of power supply is on gradual increase.
A study shows that more than 50% of underground cable failure are caused by water tree defect, in order to avoid the damage of electric power cable that take places under operation by adding high voltage to the electric power cable, the insulation efficiency is measured by using the method of IRC analysis that can be measured in operational state, and we try to find the instance study on Silicone Fluid/XL construction method reinforced insulation efficiency by preventing water penetration within cable and get rid of penetrated water to control the water tree thermal of electric power cable.

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UCI(KEPA) : I410-ECN-0101-2009-326-019165757