Effect of Ionic Impurities in Materials for CN/CV Underground Distribution Power Cable Jackets

지중배전케이블 외피용 컴파운드의 이온투과 특성 비교

  • 김동명 (한국전력공사 전력연구원) ;
  • 권태호 (한국전력공사 전력연구원)
  • Published : 2008.10.31

Abstract

The permeation of $Ca^{2+}$ ions through the materials such as polyvinyl chloride (PVC) and non-halogenated flame retardant cross linked polyolefin (FR-XLPO) used for CN-CV underground distribution power cable jackets was investigated. The permeation of $Ca^{2+}$ ions was found to increase with the increase of time. The FR-XLPO showed higher permeation of $Ca^{2+}$ ions, by a factor of about two, than the PVC. This was explained by the destruction of structural integrity caused by mixing a large amount of mineral flame retardant such as $Mg(OH)_2$ used to impart non-flame ability to the jacket material.

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