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| Analysis and prevention measures for end-of-cable faults in 10 kV switchgear outgoing lines |
| JIN Shengpeng |
| State Grid Qinghai Extra High Voltage Company,Xining 810000 |
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Abstract The cable termination of a 10 kV switchgear outlet is a fault-prone point in power distribution systems, and its operational condition directly affects power supply reliability. Based on a typical fault case at the cable termination of a 10 kV switchgear outlet, this paper systematically analyzes the mechanism and development process of the fault. The analysis indicates that electric field distortion caused by poor cable termination craftsmanship is the root cause of insulation breakdown. The protection actions triggered at the time of the fault is elaborated and theoretical analysis is combined with on-site inspection to determine the cause and implement corrective measures. Finally, comprehensive fault prevention strategies are proposed from multiple perspectives, including source control, operational management, and specialized inspections, providing references for enhancing the operational safety of 10 kV distribution systems.
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Received: 19 September 2025
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| Cite this article: |
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JIN Shengpeng. Analysis and prevention measures for end-of-cable faults in 10 kV switchgear outgoing lines[J]. Electrical Engineering, 2026, 27(4): 51-54.
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| URL: |
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https://dqjs.cesmedia.cn/EN/Y2026/V27/I4/51
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[8] 段玉兵, 韩明明, 王兆琛, 等. 不同热老化温度下高压电缆绝缘特性及失效机理[J]. 电工技术学报, 2024, 39(1): 45-54. |
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2026, Vol. 27 
