1887

Earthing of Telecommunication Installations

image of Earthing of Telecommunication Installations

A great deal of research has been done on earthing problems in connection with telecommunications and several technical papers have been published as a result. Although opinions and practices differ, there is also a large measure of unanimity on certain aspects. This first edition of a handbook on earthing is an attempt to set out those principles on which a measure of agreement has been reached, and, in those cases where there are different possibilities, to compare their merits.

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Measurement of earth electrode resistance

The earth resistance of an electrode is the resistance between the electrode and the surrounding soil. As the soil extends to an almost infinite distance it is impossible to measure this resistance accurately, but fortunately the greater proportion, say 98 per cent, of the total earth resistance is within a finite distance.

English

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