Journal of Environmental Impact Assessment (환경영향평가)

Korean Society of Environmental Impact Assessment (한국환경영향평가학회)
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Study on Standardization of the Environmental Impact Evaluation Method of Extremely Low Frequency Magnetic Fields near High Voltage Overhead Transmission Lines

고압 가공송전선로의 극저주파자기장 환경영향평가 방법 표준화에 관한 연구

  • Park, Sung-Ae (Natural Environment Research Division, National Institute Environmental Research) ;
  • Jung, Joonsig (Indoor Environment and Noise Research Division, National Institute Environmental) ;
  • Choi, Taebong (Natural Environment Research Division, National Institute Environmental Research) ;
  • Jeong, Minjoo (Department of Information & Communication Engineering, Chungbuk National University) ;
  • Kim, Bu-Kyung (Natural Environment Research Division, National Institute Environmental Research) ;
  • Lee, Jongchun (Natural Environment Research Division, National Institute Environmental Research)
  • 박성애 (국립환경과학원 자연환경연구과) ;
  • 정준식 (국립환경과학원 실내환경연구과) ;
  • 최태봉 (국립환경과학원 자연환경연구과) ;
  • 정민주 (충북대학교 정보통신공학부) ;
  • 김부경 (국립환경과학원 자연환경연구과) ;
  • 이종천 (국립환경과학원 자연환경연구과)
  • Received : 2018.10.01
  • Accepted : 2018.11.20
  • Published : 2018.12.31
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Abstract

Social conflicts with extremely low frequency magnetic field(ELF-MF) exposures are expected to exacerbate due to continued increase in electric power demand and construction of high voltage transmission lines(HVTL). However, in current environmental impact assessment(EIA) act, specific guidelines have not been included concretely about EIA of ELF-MF. Therefore, this study conducted a standardization study on EIA method through case analysis, field measurement, and expert consultation of the EIA for the ELF-MF near HVTL which is the main cause of exposures. The status of the EIA of the ELF-MF and the problem to be improved are derived and the EIA method which can solve it is suggested. The main contents of the study is that the physical characteristics of the ELF-MF affected by distance and powerload should be considered at all stages of EIA(survey of the current situation - Prediction of the impacts - preparation of mitigation plan ? post EIA planning). Based on this study, we also suggested the 'Measurement method for extremely low frequency magnetic field on transmission line' and 'Table for extremely low frequency magnetic field measurement record on transmission line'. The results of this study can be applied to the EIA that minimizes the damage and conflict to the construction of transmission line and derives rational measures at the present time when the human hazard to long term exposure of the ELF-MF is unclear.

극저주파자기장 노출에 대한 사회적 갈등은 계속되는 전력 수요의 증가와 고압송전선로의 증설로 심화될 것으로 예상되고 있다. 그러나 현행 환경영향평가법상 이에 대한 구체적 작성규정이나 지침이 마련되어 있지 않은 실정이다. 따라서 본 연구는 극저주파자기장의 주요 발생원이라 할 수 있는 고압 가공 송전선로를 대상으로 환경영향평가 사례분석, 현장측정 및 전문가 자문을 통하여 환경영향평가 방법에 대한 표준화 연구를 수행하였다. 극저주파자기장의 환경영향평가의 문제점과 개선해야 할 사항을 도출하고, 이를 반영하여 환경영향평가 방법을 제안하였다. 주요내용으로는 환경영향평가의 현황조사-영향예측-저감방안마련-사후환경영향평가계획의 각 단계에서 거리와 전류량에 영향을 받는 극저주파자기장의 물리적 특성을 고려한 계획수립 및 결과분석 과정을 제안하였다. 본 연구 내용을 기반으로 환경영향평가 실무에 적용시킬 수 있는 '전력선에 대한 극저주파자기장 공정시험방법(안)'과 '전력선에서의 극저주파자기장 측정기록표'를 마련하였고, 29개 항목의 극저주파자기장 점검표를 작성하였다. 이러한 연구결과는 극저주파자기장의 장기적 노출에 대한 인체유해성이 불명확한 현 시점에서 송전선로 피해와 갈등을 최소화하고 합리적 방안을 도출하는 환경영향평가에 활용될 수 있을 것이다.

Keywords

HOPHBL_2018_v27n6_658_f0001.png 이미지

Figure 1. Hourly mean transmission power of TL in Dangjin-si by voltage on September, 2017.

HOPHBL_2018_v27n6_658_f0002.png 이미지

Figure 2. Process flowchart of EIA for ELF-MF of high voltage transmission line (HVTL).

Table 1. EIA survey overview of ELF-MF impact near overhead High Voltage Transmission Lines(HVTL)

HOPHBL_2018_v27n6_658_t0001.png 이미지

Table 3. Measurement information of High Voltage Transmission line(HVTL) including Capacity, annual Avg. and Max. power in 2015~2017.

HOPHBL_2018_v27n6_658_t0002.png 이미지

Table 4. Actual field measurement value(FV), predicted magnetic field strength value at annual mean power(Mean) and annual max. power(Max.) during recent 3 years 2015~2017 by the distance from the ground reference point under the HVTL(DGR) and the distance from the HVTL(DTL) (unit : mG)

HOPHBL_2018_v27n6_658_t0003.png 이미지

Table 5. EMF-MF exposure Mitigation Options

HOPHBL_2018_v27n6_658_t0004.png 이미지

Table 6. Checklists of environmental impact assessment for EMF-MF

HOPHBL_2018_v27n6_658_t0005.png 이미지

Table 2. Investigation overviews for ELF-MF impacts of HVTL in EIA

HOPHBL_2018_v27n6_658_t0006.png 이미지

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