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Mechanical and Electrical Properties of Aluminum Wires of ACSR Conductors due to Forest Fire

산불에 노출된 강심알루미늄연선 송전선 알루미늄 선재의 기계적 및 전기적 특성 거동

  • Lee, Won-Kyo (Transmission and Distribution, Korea Electric Power Corporation Research Institute) ;
  • Lee, Jung-Won (Transmission and Distribution, Korea Electric Power Corporation Research Institute) ;
  • Kim, Byung-Geol (Advanced Materials and Application Research Laboratory, Korea Electrotechnology Research Institute)
  • 이원교 (한국전력공사 전력연구원 송배전연구소) ;
  • 이정원 (한국전력공사 전력연구원 송배전연구소) ;
  • 김병걸 (한국전기연구원 재료응용연구단)
  • Received : 2010.07.26
  • Accepted : 2010.08.20
  • Published : 2010.09.01

Abstract

Forest fire can cause a serious damage to overhead conductors. Therefore, detailed investigation on the changes of mechanical and electrical properties of damaged conductors should be carried out to understand the effect of forest fires on conductors. This is of critical importance in maintaining transmission line safely. This paper examines the changes of mechanical and electrical properties of flame exposed conductor. Tensile strength (TS) decreased according to increase of forest fire temperature and conductivity changed according to forest fire temperature. Specimens were aluminum conductors of aluminium conductor steel reinforced (ACSR) 410, 240, 480 $mm^2$. In this paper, the electrical and mechanical characteristics of forest fires exposed overhead conductors depending on the diameter of aluminum conductors are presented. It was possible to estimate the degree of deterioration caused by forest fires. The detailed results are given in the paper.

Keywords

Mechanical and electrical properties;Forest fire;Aluminium conductor steel reinforced (ACSR) 410 $mm^2$ conductor

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