A Critical Soil Moisture Condition Affecting Buried Transmission Cables [includes discussion]
- 1 October 1953
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems
- Vol. 72 (5), 849-854
- https://doi.org/10.1109/aieepas.1953.4498710
Abstract
By experiment it was found, in an idealized soil, that a critical moisture content of approximately 4 per cent by weight separated two distinctly different phenomena whereby heat is dissipated from buried transmission cables or other heat sources. Above this moisture content relatively large quantities of heat per lineal foot can be dissipated by what appears to be a circulation phenomenon. Below this moisture content the soil rapidly dries out, materially decreasing the quantity of heat that can be dissipated. This last phenomenon may be the explanation of the so-called "runaway condition" observed in practice in connection with buried transmission cables.Keywords
This publication has 3 references indexed in Scilit:
- Residential heat pump experiments in Philadelphia - Earth as a heat sourceTransactions of the American Institute of Electrical Engineers, Part II: Applications and Industry, 1952
- The Thermal Movement of Moisture in SoilTransactions of the American Institute of Electrical Engineers, 1949
- Thermal transfer of moisture in soilsEOS, Transactions American Geophysical Union, 1943