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Medium-Voltage AC Cable Joints: A Review of Testing Methods, Standards, and Emerging Trends
Alessandro Mingotti1, Farshid Babaei1, Roberto Tinarelli1
1Department of Electrical, Electronic, and Information Engineering (DEI), University of Bologna, 40136 Bologna, Italy.
None:
Cable joints (CJs) are essential components of power systems, enabling cable network extension and repair. Their design and installation are critical to ensuring reliability. This paper reviews the international standards, state-of-the-art literature, and emerging trends in medium-voltage (MV) AC cable joint testing. It provides a comprehensive overview of existing testing methods, highlighting innovative approaches. The review covers key international standards for CJ testing, both during design and final manufacturing stages. Additionally, it examines the literature on tests developed for assessing factors affecting CJ performance, including temperature, partial discharges, and tangent delta measurements. Recent advancements in artificial intelligence for CJ testing are also discussed. This work aims to present a thorough perspective on current practices and future directions in MV cable joint testing and diagnostics.
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