• 조명전기설비학회논문지
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• 제23권2호
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• pp.190-195
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• 2009

본 논문은 모의된 시공불량에 따른 결점을 가진 배전급 종단부의 전기적인 사고에 대하여 실험적으로 조사한 것을 나타낸다. 실험에 조립형과 열수축형인 두 개의 종단재를 사용하였다. 우리는 시공불량에 따른 모의 결점을 가진 케이블 종단부를 제작하여 교류 및 임펄스 내전압 시험과 같은 절연 특성을 고찰하였다. 두께 감소나 하우징의 스트레스콘과 반도전층 사이의 틈과 같은 결점의 영향에 대하여 연구하였다. 절연체의 두께 감소 시 교류 절연파괴 강도는 급격히 감소하였고 이 절연체의 절연파괴 흔적은 타원형으로 나타났다. 스트레스콘과 반도전출 사이의 틈은 절연내력에 매우 나쁜 영향을 주었다. 열수축형에서, 교류 절연파괴 전압은 가열 시간이 짧을 때 낮아졌다.

• 한국전기전자재료학회논문지
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• 제22권2호
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• pp.178-183
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• 2009

This paper introduces experimental investigates of an accident pattern for the distributing cross linking-polyethylene(XLPE) cable terminations considering product liability(PL) law environment. The influence of defects such as thickness and length decrease of XLPE, an impurity on XLPE and the gap between stress-con of housing and semi-conductor on insulating properties of the termination have been studied. The thickness and length decrease of XLPE decrease ac breakdown strengths. Breakdown traces of XLPE that is damaged by knife displayed ellipse shape. The gap of between stress-con and semiconductor deteriorates dielectric strength of XLPE seriously.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2008년도 추계학술논문발표회 논문집
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• pp.465-470
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• 2008

This paper introduces experimental investigates of an electrical accident of the distributing cable termination with simulated badness construction. We prepared two termination kites, one is built-up type, the other is heat contraction type. Also, we manufactured cable termination that have simulated defect by badness construction and measured their insulation characteristics such as ac (35kV, 1min) and impulse (95kV, $1.2{\times}50{\mu}s$) withstand test. The influence of defects such as thickness and the gap between stress-con of housing and semi-conductor on insulating properties of the termination have been studied. The thickness decrease of insulator decreases ac breakdown strength. Dielectric breakdown traces of insulator that is damaged by knife displayed other shape. The gap of between housing and semiconductor deteriorates dielectric strength of insulator seriously.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2008년도 추계학술대회 논문집
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• pp.319-322
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• 2008

This paper introduces experimental investigates of an accident pattern for the distributing XLPE cable terminations considering PL law environment. The influence of defects such as thickness and length decrease of XLPE, the impurity on XLPE and the gap between stress-con of housing and semi-conductor on insulating properties of the termination have been studied. The thickness and length decrease of XLPE decrease ac breakdown strengths. Dielectric breakdown traces of XLPE that is damaged by knife displayed other shape. The gap of between housing and semiconductor deteriorates dielectric strength of XLPE seriously.