대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2001년도 추계학술대회 논문집 전기물성,응용부문
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- Pages.216-218
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- 2001
인하도선 주변에서 발생하는 자장의 억제
The Control of the Magnetic Field around Down Conductors
- 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
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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