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The design and use of scale models for evaluating the performance of grounding grids is described. Construction details of two electrolytic tanks of different sizes and of a number of scale- model grids are discussed, together with the associated instrumentation. Results are presented showing the potential profiles for a number of grids and the effects of the number of meshes, the use of ground rods, and non-uniform soil resistivity.
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Caldecott et al. (1983) studied this question.
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