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In this paper, a new system of integral equations (SIE) for the unknown grounding current distribution function on the grounding system (GS) conductors in two-layer earth is established. First, a quasi-stationary electromagnetic (EM) field structure and the potential at the points around the GS in two-layer earth are determined. The GS supply zone is approximated by an ideal current generator. The SIE is numerically solved by the point matching method using a polynomial approximation for the current distribution function.
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Rančić et al. (1996) studied this question.
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