대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

인하도선 주변에서 발생하는 자장의 억제

The Control of the Magnetic Field around Down Conductors

  • 이복회 (인하대학교 전기공학과) ;
  • 강성만 (인하대학교 전기공학과) ;
  • 이승칠 (인하대학교 전기공학과) ;
  • 엄주흥 (인하대학교 전기공학과) ;
  • 이경옥 (인하대학교 전기공학과)
  • Lee, Bok-Hee (Dept. of Electrical Engineering, Inha University) ;
  • Kang, Sung-Man (Dept. of Electrical Engineering, Inha University) ;
  • Lee, Seung-Chil (Dept. of Electrical Engineering, Inha University) ;
  • Eom, Ju-Hong (Dept. of Electrical Engineering, Inha University) ;
  • Lee, Kyoung-Ok (Dept. of Electrical Engineering, Inha University)
  • 발행 : 2001.11.03
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초록

This paper deals with the control of magnetic field around the down conductor of lightning protection systems. The magnetic field strength in the vicinity of down conductor is shown to drop off rapidly with distance from the down conductor and is reversely proportional to the number of down conductor. Also the magnetic field strength is decreased in the structures as the down conductor is installed with the symmetrical arrangement, and it is zero at the center of symmetry. The magnetic field strengths for the symmetrical arrangement of two down conductors are less than one half compared with that for a down conductor. A proper arrangement of down conductor can reduce or cancel the magnetic field in a restricted place where information-oriented and computerized facilities are densely installed.

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