Investigation of Improvement in Current Carrying Capacity of Various Power Cables Using a Novel Arrangement

Salman Amin Hazrat Khan
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Salman Amin Hazrat Khan: Department of Electrical Engineering, University of Engineering and Technology,Taxila

International Journal of Innovations in Science & Technology, 2025, vol. 7, issue 7, 172-184

Abstract: Power cables are essential components of electrical systems, and their ability to carry current depends directly on the size of the conductor. With the rising cost of copper, efficiently utilizing a conductor's current-carrying capacity has become increasingly important. To maximize this capacity, it is crucial to limit the temperature rise, either through effective heat dissipation or by optimizing the cable orientation in a trench. This study introduces new cable arrangements designed to lower the operating temperature of power cables, which in turn increases their current-carrying capacity. Different cable orientations for laying three-phase power cables in both single and double circuit configurations were examined. A high-resolution thermal imager was used to accurately measure the temperature. Two of the proposed orientations led to a significant reduction in operating temperature compared to the cable arrangements specified in BS 7671. These novel orientations can increase the current-carrying capacity by approximately 6% without the need to increase the cable size.

Keywords: Thermal Imaging for Cables; Power Cables Orientations; Relationship between Temperature and Ampacity; Novel cable arrangements; Trench Installation (search for similar items in EconPapers)
Date: 2025
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