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Evaluation of Extremely Low Frequency Magnetic Fields emission Level from High Voltage Transmission Lines

고압 송전선로에서 극저주파 자기장 영향평가 적용에 관한 연구

  • Jung, Joon Sig (Department of Public Health, Hanyang University) ;
  • Choi, Sung Ho (Department of Computer and Communication Engineering, Chungbuk National University) ;
  • Jeon, Hyung Jin (Korea Environment Institute) ;
  • Kim, Yoon Shin (Department of Public Health, Hanyang University) ;
  • Hong, Seung Cheol (Department of Occupational Health & Safety Engineering, Inje University)
  • 정준식 (한양대학교 보건학과) ;
  • 최성호 (충북대학교 정보통신공학과) ;
  • 전형진 (한국환경정책평가연구원) ;
  • 김윤신 (한양대학교 보건학과) ;
  • 홍승철 (인제대학교 보건안전공학과)
  • Received : 2014.08.04
  • Accepted : 2014.09.30
  • Published : 2014.10.31

Abstract

The purpose of this study was to investigated the ELF-MF emission level of various environments such as 258 facilities near located to high voltage transmission lines and 120 high voltage transmission lines, 17 underground cable lines. In addition, ELF-MF reduction rate according to separation distance was calculated by using simulations. An appropriate separation distance showing below 4mG was at least 70m. In the case of the appropriate separation distance for 120 high voltage transmission lines, 154kV required 20m of separation distance and 345kV required 60m of separation distance. The simulation results showed that the appropriate separation distance showing below 4mG was 40m and 60m for overhead 154kV and 345kV respectively. To adjust the worst conditions considering the aspects of environmental impact assessment study and the electric power currents that will increase in the future, the appropriate minimum separation distance for HVTL is judged to be above 70m in this study. Thus, there is a need to establish the greenbelt or buffer zone within 70m so as to create an environment in which the receptors are not exposed and thereby eliminate the risk factors of ELF-MF against humans.

본 연구의 목적은 가공송전선 인접 258개 시설과 120개의 고압 가공송전선, 17개의 지중화 송전선에서 자기장 방출량을 조사하였다. 또한 시뮬레이션을 이용하여 이격거리에 따른 ELF-MF 저감률을 파악하였다. 120개 고압 가공송전선의 전압 형태에 따라 자기장 방출량 조사한 결과, 154kV 고압송전선은 최소 60m, 345kV는 최소 80m, 765kV는 최소 100m 이격거리를 설정해야 고압송전선에서 발생하는 자기장 노출의 위해요인을 사전에 예방할 수 있을 것으로 나타났다. 극저주파 자기장의 방출량 시뮬레이션을 실시한 결과, 154kV의 경우 최대 부하가 걸린 시점에서 40m 이상, 345kV의 경우 60m 이격된 거리에서 4mG 이하로 나타났다. 환경영향평가학적 측면을 감안한 최악의 조건과 앞으로 증가될 전력 부하량을 감안하여 본 연구에서는 고압송전선로 최소 적정 이격거리는 70m 이상이 타당할 것이라 판단된다. 70m 내에 녹지대나 완충구역을 설정하여 수용체가 노출되지 않는 환경을 조성해야 차후 발생할 수 있는 극저주파 자기장 인체 위해성 관련 불안 요인을 제거할 수 있을 것으로 사료된다.

Keywords

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