Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Effect oh Heat Treatment on Breakdown Properties in the Joint Interface of Power Cables

전력케이블 절연접속계면의 절연파괴 특성에 미치는 열처리 효과

  • 이창종 (한국교원대학교 기술교육과) ;
  • 김진수 (한국교원대학교 기술교육과) ;
  • 박강식 (충남전문대학 전기과) ;
  • 한상옥 (충남대학교 전기공학과)
  • Published : 1998.07.01

Abstract

The purpose of this study is to investigate the breakdown properties in joint interface of power cables with heat treatment. The specimens have the structure of XLPE/EPDM interface like the joint of distribution power cable. The breakdown characteristics of the SLPE/EPDM joint were studied with crosslinking by=products. AC breakdown voltages were measured with heat treatment time and interfacial materials and crosslinking by-products as testing factors. This study has shown that crosslinking by-product gases play an important role at the insulation properties of cable joints by heating. The dielectric strength shows the lowest values at 4 hours heat treatment. The AC breakdown strength in the untreated sample was increased with heat treatment time.

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