This simple software tool with auto-mathematical functions was developed using Microsoft Excel. This template provides a technically acceptable computer simulation and yet a low-cost solution to the complex issue of effective design of earthing systems according to the standards BS-7430, IEEE-120 Green Book, and IEC-60364. Preliminary layout design is to be conducted after deciding the type of earthing electrode. The resistance of earthing must confirm to the minimum requirement. Further investigation of step and touch voltages is to be made to guarantee that they do not exceed the allowable limits. |
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