보조전극의 수직배치를 통한 접지저항 측정의 타당성 연구

초록

The fall of potential method is typically used for measuring the ground resistance of large-sized grounding system. Because the distances between the test ground grid and auxiliary electrodes are limited in downtown areas, it is very difficult to measure acurately the ground resistance of large-sized ground system. Therefore the method of measuring the ground resistance using the vertically-placed auxiliary electrodes was investigated. Various simulations and trial tests were carried out in two-layer earth structure, and the validity of the method of measuring the ground resistance was examined.