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Energies 2017, 10(12), 2050; doi:10.3390/en10122050

Investigation of the Ampacity of a Prefabricated Straight-Through Joint of High Voltage Cable

School of Electric Power, South China University of Technology, Guangzhou 510640, China
School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane 4109, Australia
Cable Specialty Committee, Guangdong Society for Electrical Engineering, Guangzhou 510080, China
Transmission Management, Guangzhou Power Supply Co. Ltd., Guangzhou 510310, China
Author to whom correspondence should be addressed.
Received: 23 October 2017 / Revised: 24 November 2017 / Accepted: 1 December 2017 / Published: 4 December 2017
(This article belongs to the Section Electrical Power and Energy System)
View Full-Text   |   Download PDF [5128 KB, uploaded 4 December 2017]   |  


This paper presents a theoretical and experimental study on the ampacity of the prefabricated straight-through joint of a 110 kV high voltage cable. Thermal modelling revealed that the critical spot limiting the ampacity of this type of cable joint is located on its crosslinked polyethylene (XLPE) insulation section. The axial distribution of the thermal field in this type of cable joint was also determined. An algorithm for assessing ampacity in this type of cable joint was developed. Experiments were conducted on a real cable system with a prefabricated straight-through joint under different loading conditions. The experiments show a good agreement with the thermal modelling results. View Full-Text
Keywords: ampacity; cable joint; cable system; critical spot; thermal modelling ampacity; cable joint; cable system; critical spot; thermal modelling

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wang, P.; Liu, G.; Ma, H.; Liu, Y.; Xu, T. Investigation of the Ampacity of a Prefabricated Straight-Through Joint of High Voltage Cable. Energies 2017, 10, 2050.

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