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이재봉(Jae-Bong Lee),이병성(Byung-Sung Lee),김상준(Sang-Joon Kim),장상옥(Sang-Ok Jang),한용희(Yong-Huei Han),오재형(Jae-Hyoung Oh) 한국조명·전기설비학회 2004 한국조명·전기설비학회 학술대회논문집 Vol.2004 No.5월
The primary failure causes of underground distribution power cables are water penetration in insulation layer and stress enhancement at inner semi-conductive layer. Accordingly, it is needed to improve the materials and the structure of power cables for extending lifetime and preventing failure. We also use super smooth class material as a inner semi-conductive layer. The newly developed cables are improved in AC breakdown voltage after ageing tests.