Open Science Research Excellence
%0 Journal Article
%A S. H. Alwan and  J. Jasni and  M. Z. A. Ab Kadir and  N. Aziz
%D 2016 
%J  International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering
%B World Academy of Science, Engineering and Technology
%I International Science Index 119, 2016
%T Factors Affecting Current Ratings for Underground and Air Cables 
%U http://waset.org/publications/10006814
%V 119
%X The aim of this paper is to present a parametric study to determine the major factors that influence the calculations of current rating for both air and underground cables. The current carrying capability of the power cables rely largely on the installation conditions and material properties. In this work, the influences on ampacity of conductor size, soil thermal resistivity and ambient soil temperature for underground installations are shown. The influences on the current-carrying capacity of solar heating (time of day effects and intensity of solar radiation), ambient air temperature and cable size for cables air are also presented. IEC and IEEE standards are taken as reference.

%P 1422 - 1428