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- Title
Effect of Solar Radiation on Current-Carrying Capacity of PVC-insulated Power Cables - the Numerical Point of View.
- Authors
CZAPP, Stanislaw; SZULTKA, Seweryn; TOMASZEWSKI, Adam; SZULTKA, Agata
- Abstract
Power cables are usually buried in the soil, which results in their relatively high current-carrying capacity. However, there are cases in which the starting/final section of a cable line runs along a pole of an overhead power line. Power cables can be directly exposed to solar radiation then, and this negatively influences their currentcarrying capacity as well as estimated life of the cables' insulation. An analysis of thermal phenomena in PVC-insulated low-voltage power cables, exposed to solar radiation, is conducted in the paper. Current-carrying capacity of an example cable system, for various placements of the cables, is evaluated. The analysis has shown that solar radiation may significantly reduce current-carrying capacity of PVC-insulated cables. A possible method of protection of cables against solar radiation, and its effectiveness, is presented. To investigate the mentioned thermal phenomena, a Computational Fluid Dynamics (CFD) has been used.
- Subjects
SOLAR radiation; OVERHEAD electric lines; COMPUTATIONAL fluid dynamics; CABLES; POLYVINYL chloride; FINITE volume method
- Publication
Technical Gazette / Tehnički Vjesnik, 2019, Vol 26, Issue 6, p1821
- ISSN
1330-3651
- Publication type
Article
- DOI
10.17559/TV-20181029214825