Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Evaluation of the Magnetic Field Exposure Level in 60 Hz High Voltage Transmission Lines Nearby Residential Area

60 Hz 고압송전선로 인접 주거지역의 자기장 노출수준 평가

  • Hong, Seung-Cheol (Department of Occupational Health & Safety Engineering, Inje University) ;
  • Jung, Joon-Sig (Department of Occupational Health & Safety Engineering, Inje University) ;
  • Kim, Keun-Young (Department of Occupational Health & Safety Engineering, Inje University) ;
  • Park, Hyun-Ju (Department of Occupational Health & Safety Engineering, Inje University) ;
  • Choi, Sung-Ho (Institute of Environmental and Industrial Medicine, College of Medicine, Hanyang University)
  • 홍승철 (인제대학교 의생명공학대학 보건안전공학과) ;
  • 정준식 (인제대학교 의생명공학대학 보건안전공학과) ;
  • 김근영 (인제대학교 의생명공학대학 보건안전공학과) ;
  • 박현주 (인제대학교 의생명공학대학 보건안전공학과) ;
  • 최성호 (한양대학교 환경 및 산업의학연구소)
  • Published : 2008.02.28
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Abstract

In order to evaluate the magnetic field (MF) exposure level in residential areas near high voltage power lines, this research measured MF levels at 120 sites near high voltage transmission lines in the Busan region, Gwangju region, Daegu region and Changwon region from July to December, 2005, and compared and analyzed the efficiencies by measuring and applying the MF emission levels of underground cables and high voltage transmission lines. As a result of the investigation of the MF exposure level by the building usage, the average MF level of 17 locations at schools was $2.44{\pm}2.45mG;$ that of 10 locations at hospitals $6.21{\pm}12.39mG;$that of 76 locations at apartments $2.55{\pm}2.98mG;$ and that at kindergartens and infant houses $3.32{\pm}4.21mG$. MF exposure was analysed as a function of distance from the source and the MF levels directly below a source were $5.15{\pm}8.72mG$, those within 30 m were $3.10{\pm}3.32mG$, while those within 50 m were $2.45{\pm}2.38mG$, and within 100 m were $0.71{\pm}0.93mG$. In order to determine the difference of MF levels by the actual distance from high voltage transmission line within the same building, the evaluation of the floor position and the MF level has shown that the MF levels were highest in the order of roof, 4th floor, 3rd floor, 2nd floor and 1st floor. Comparison of MF emission intensity of underground cables and high voltage transmission lines, has shown that underground cables have an 86-94% of reduction ratio in MF compared to high voltage transmission lines, thus demonstrating higher efficiency.

Keywords

References

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