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Molecular Thermodynamics of Water in Direct-Buried Power Cables

December 11, 2006

IEEE Electrical Insulation Magazine
Volume: 22, Issue: 6, Nov.-Dec. 2006
by Glen J. Bertini
December 11, 2006

Water, which is almost always present at 100% relative humidity at the typical 1 meter burial depth of direct buried power cables, moves very quickly through any polymeric layers. This paper examines what actually happens to water within a direct-buried cable throughout the day and year as the cable temperature, the soil temperature, and the water content of the soil vary.

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