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http://dx.doi.org/10.5207/JIEIE.2002.16.4.008

Effective Installation Methods of Down Conductors in Lightning Protection Systems  

이복희 (인하대학교 전자전기공학부)
엄주홍 (인하대학교 전자전기공학부)
이승칠 (인하대학교 전자전기공학부)
강성만 (인하대학교 전자전기공학부)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.16, no.4, 2002 , pp. 8-14 More about this Journal
Abstract
A modern lightning protection system is required to eliminate the risks such as electrical shocks and damages of structures, electrical and electronic equipments due to lightning. However, the conventional lightning protection systems play and important role in protecting persons and structures only. Thus an effective lightning protection system is indispensable today in computer, information and communication facilities and etc. The mafor objective of this paper is to develop the technology to protect electronics and computerized facilities against lightning-caused overvoltages. The study is oriented on the control of the potential rise of down conductors with the type and installation method of down conductors. As a result, to reduce side flashes and hazards caused by the potential rise of down conductor due to lightning current, the coaxial cable with a low characteristic impedance and high insulation level is suitable for a down conductor. In particular it is extremely effective to bond down conductors to the steel supporter, metal raceways and steel frame of structures.
Keywords
Lightning protection system; Down conductor; Lightning impulse current; Potential rise; Characteristic impedance; Electrical bonding;
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