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

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Examinations on the Reasonable Measuring Methods of the Soil Resistivity for Design of Grounding System

접지시스템의 설계를 위한 대지저항률의 합리적인 측정방법 고찰

  • 이복희 (인하대학교 IT공대 전기공학부) ;
  • 김기복 (인하대 대학원 전기공학과) ;
  • 이승훈 (인하대 공학대학원 정보전기공학과) ;
  • 최종혁 (인하대 대학원 전기공학과)
  • Received : 2011.01.27
  • Accepted : 2011.03.31
  • Published : 2011.06.30
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Abstract

In order to design effectively the grounding system, it is very important to determine the optimum soil resistivity at the desired location of the connection to earth. This paper deals with the reasonable methods of measuring the soil resistivity where grounding electrodes are buried. The soil resistivity at three test sites with different resistivity of soil were measured as functions of the spacing between the test probes in the Wenner's four-point method and the length of test ground rod in the three-point method. In the case of the three-point method, the length of test ground rod of 2-10[m] in length was appropriate in two-layered soil structure. In the length range of 2-10[m], the results measured by the three-point method using the test ground rod with the length corresponding to the spacing between the test probes of the Wenner's four-point method are in good agreement with the data obtained from the Wenner's four-point method.

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References

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