Title :
External thermal resistance of power cable in nonuniform soil
Author :
Slaninka, P. ; Morgan, V.T.
Author_Institution :
Electrotech. Fac., Slovak Tech. Univ., Bratislava, Czechoslovakia
fDate :
5/1/1992 12:00:00 AM
Abstract :
A method is described for calculating the external thermal resistance of a power cable buried in a backfilled trench or in thermally nonuniform soil of defined shape. The analysis is based on the multiple reflections of a line source of heat and its images. Cable configurations examined are: within or beneath a horizontal top layer of soil; close to the vertical boundary between dissimilar media; near or within a vertical layer sandwiched between two media; and within a backfilled trench.
Keywords :
power cables; soil; thermal resistance measurement; underground cables; backfilled trench; cable configurations; external thermal resistance; line heat source multiple reflections; power cable; thermally nonuniform soil;
Journal_Title :
Science, Measurement and Technology, IEE Proceedings A
