A model to study the thermal behaviour of a system of directly buried electrical power cables is presented. The model completely describes the conditions of heat transfer at the soil-air interface. In particular, the different incid- ences that the various radiative components have on the evolution of temperature in the system examined are evaluated. The method is applied to the case of a three-phase line placed under a daily cyclic load, based on experimental observations made on a line with cable of similar character- istics. Different evaluations are carried out assuming different characteristics for the soil and the climatic conditions

Effect of Radiative and Convective Heat Transfer on Thermal Transients in Power Cables

BUONANNO, Giorgio;DELL'ISOLA, Marco;
1995-01-01

Abstract

A model to study the thermal behaviour of a system of directly buried electrical power cables is presented. The model completely describes the conditions of heat transfer at the soil-air interface. In particular, the different incid- ences that the various radiative components have on the evolution of temperature in the system examined are evaluated. The method is applied to the case of a three-phase line placed under a daily cyclic load, based on experimental observations made on a line with cable of similar character- istics. Different evaluations are carried out assuming different characteristics for the soil and the climatic conditions
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11580/7391
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