Remote Earth

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Remote earth is a concept used to describe the resistance between one point in earth and an arbitrarily distant point (also in earth). The earth resistance between any two points typically increases proportional to the distance, however there comes a point after which the earth resistance no longer increases appreciably. Any point greater than this minimum distance is therefore referred to as remote earth.

For example, if the earth resistance is measured from a 10ft (~4.5m) earthing electrode, remote earth is typically any point further than 25ft (~11.4m) away.