조명전기설비학회논문지 (Journal of the Korean Institute of Illuminating and Electrical Installation Engineers)

  • 제27권7호
  • /
  • Pages.82-88
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  • 2013
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  • 1229-4691(pISSN)
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  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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콘크리트에 매입된 기초접지극의 크기 및 설치방법에 관한 고찰

A Consideration of Volume and Installation Method of Concrete-Embedded Foundation Earthed an Electrode

  • 투고 : 2013.05.02
  • 심사 : 2013.05.22
  • 발행 : 2013.07.31
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초록

IEC standards do not require to limit the earthing resistance of the concrete-embedded foundation earthing electrode which is installed to a specific value. However, in Korea the value of $5{\Omega}$ and below applies to the earthing resistance for a domestic customer whose receiving voltage is 22.9kV. This paper calculates the minimum area and volume of the concrete-embedded foundation earthing electrode in order to obtain a specific value of the earthing resistance when the electrode of the building's lightning protection system and that of its power system are interconnected. It also suggested the most appropriate method of installing the foundation earthing electrode, taking the electric characteristics of concrete into account.

키워드

참고문헌

  1. IEC 62305-3, Protection against lightning-Part 3 : Physical damage to structures and life hazard, 2010
  2. IET, Lightning protection, 2010.
  3. BSI, Protection against lightning A UK guide to the practical application of BS EN 62305:2006, 2007.
  4. IEC 60364-5-54, Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment -Earthing arrangements and protective conductors, 2011.
  5. NAPA, National Electrical Code handbook, 2011.
  6. NAPA, NFPA 780 Standard for the Installation of Lightning Protection Systems, 2011.
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  14. Corporation Japan Lightning Protection System Industrial Association, The standard design of the lightning protection system, 2009.