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IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Grounding System
Revision Standard - Active.
Practical test methods and techniques are presented for measuring the electrical characteristics of grounding systems.
Topics addressed include:
The test methods and techniques used to measure the electrical characteristics of the grounding system include the following topics:
This guide presents practical effective methods for measuring soil electrical resistivity and the condition and performance of grounding systems.
Measurable parameters include grid resistance, grounding system impedance, ground potential rise (GPR), touch and step voltages, and current distributions in and from the system.
These grounding grids and systems typically consist of interconnected grounding components ranging in complexity from a few ground rods to large grids with many ground rods or wells, buried conductors, and external ground connections.
External ground connections may include:
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