Ampacity Of Buried Cables In Trenches Filled
With Recycled Concrete
Author(s)
A. Geri, M. Ianicelli, L. Podestà & G.M. Veca
Abstract
In this paper the authors present a model designed to determine, over the course
of time, the ampacity of a buried cable, the map of the temperature both inside
the cable and in the surrounding soil. The model is quite versatile: analyses can
be made for various types of cables, filler materials of the trench and types of
soil. Other analyses can simulate various ways of laying configurations, load
rates, as well as various environmental conditions. The numerical results
presented in this paper refer, in particular, to a typical installation in urban areas
of a three-phase underground power line at 20 kV, consisting of three unipolar
cables insulated with dampened paper and a lead casing which are then covered
in PVC and running at both nominal rate and in overload. The numerical
algorithm is ba
Keywords
Related Book
Other papers in this volume
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