Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Estimation of Thermal History in XLPE Insulated Cable during Heat Cycle Test

Heat Cycle Test에서 XLPE 절연체에 인가되는 열이력의 추정

  • Kim, Young-Ho (LG Cable & Machinery Ltd. Electric Power Research & Technology Center) ;
  • Lee, Sang-Jin (LG Cable & Machinery Ltd. Electric Power Research & Technology Center) ;
  • Lee, Gun-Joo (LG Cable & Machinery Ltd. Electric Power Research & Technology Center)
  • Published : 1998.07.20
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Abstract

The thermal history of XLPE insulated cable during heating cycle voltage test specified by IEC 840 was examined by DSC(differential scanning calorimetry) method, of which the principal is on the basis of the phenomenon that the crystals in polyethylene are rearranged as it is annealed near/below the melting temperature. From the result, it can be estimated that XLPE insulation near the conductor was exposed at the temperature of about $100^{\circ}C$ with the electrical stress through the test.

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