A new article has been published on our website: «How Do the Methods for Calculating Grounding Arrangement Resistance Differ?»
The material, prepared by a Zandz.com technical specialist, compares formulas from various authoritative sources — reference books by Barybin, Karyakin, RD standards, and others, including RD 34.35.514-85 "Instructions on the Operation of Overvoltage Protection Means". These documents contain different methodologies for calculating the resistance of vertical and horizontal grounding electrodes. All these approaches are used in design practice—but is there really a fundamental difference between them?
The article explores how the notion of "correct" and "incorrect" formulas emerged and answers the question of whether the choice of methodology affects the final result.
Read the article on a dedicated page.
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