Notes on resistance of gas-pipe grounds

Author(s): J. L. R. Hayden
Publisher: IEEE - Institute of Electrical and Electronics Engineers, Inc.
Publication Date: 1 March 1908
Volume: 27
Page(s): 281 - 288
ISSN (Paper): 0097-2444
DOI: 10.1109/PAIEE.1908.6741995



Earth connections in electric circuits are frequently made by driving a gas pipe into the ground. Such grounds are of fairly high resistance, and therefore not permissible where a low resistance ground is required. Their great simplicity and cheapness makes them desirable, where very low ground resistance is not necessary, as for discharging static charges, earthing overhead ground-wires, etc. To get data on the resistance offered by such gas pipe grounds, their permanence, and the variation of the resistance with the seasons, an investigation was started two years ago.