Investigation on the Ampacity of AC Submarine Cables in J-Type Conduit Trenchless Installation
For the installation of submarine cables at sites with significant elevation differences and non-excavation bases, the J-type conduit represents an emerging installation solution. This study focused on a typical AC submarine cable installed via J-type conduit trenchless installation. A coupled elect...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/11/2900 |
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| author | Xunping Yan Yun Cong Gang Qian Jianliang Xu Lu Sun Zhen Liu |
| author_facet | Xunping Yan Yun Cong Gang Qian Jianliang Xu Lu Sun Zhen Liu |
| author_sort | Xunping Yan |
| collection | DOAJ |
| description | For the installation of submarine cables at sites with significant elevation differences and non-excavation bases, the J-type conduit represents an emerging installation solution. This study focused on a typical AC submarine cable installed via J-type conduit trenchless installation. A coupled electromagnetic–thermal–fluid finite element model was established to investigate the effect of the burial depth, conduit material, and environmental temperature on the ampacity of the cable. The results indicate that the ampacity of the cable decreases as the burial depth increases due to the deteriorating heat dissipation capacity of the soil. Regarding the internal medium of the conduit, the cable demonstrates superior ampacity performance in muddy water. Additionally, J-type conduits fabricated from non-magnetic metallic materials such as copper and stainless steel exhibit significantly higher cable ampacity compared to polymeric materials like PE and PVC. As the soil’s temperature rises with the increasing environment temperature, its thermal conductivity efficiency decreases, consequently impairing cable heat dissipation and ampacity. |
| format | Article |
| id | doaj-art-e21d1e61cf3f4f79a1f4c6c74cec23cb |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-e21d1e61cf3f4f79a1f4c6c74cec23cb2025-08-20T03:46:46ZengMDPI AGEnergies1996-10732025-06-011811290010.3390/en18112900Investigation on the Ampacity of AC Submarine Cables in J-Type Conduit Trenchless InstallationXunping Yan0Yun Cong1Gang Qian2Jianliang Xu3Lu Sun4Zhen Liu5Zhoushan Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Zhoushan 316000, ChinaZhoushan Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Zhoushan 316000, ChinaZhoushan Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Zhoushan 316000, ChinaZhoushan Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Zhoushan 316000, ChinaZhejiang Zhoushan Marine Power Research Institute Co., Ltd., Zhoushan 316000, ChinaCollege of Engineering, Ocean University of China, Qingdao 266100, ChinaFor the installation of submarine cables at sites with significant elevation differences and non-excavation bases, the J-type conduit represents an emerging installation solution. This study focused on a typical AC submarine cable installed via J-type conduit trenchless installation. A coupled electromagnetic–thermal–fluid finite element model was established to investigate the effect of the burial depth, conduit material, and environmental temperature on the ampacity of the cable. The results indicate that the ampacity of the cable decreases as the burial depth increases due to the deteriorating heat dissipation capacity of the soil. Regarding the internal medium of the conduit, the cable demonstrates superior ampacity performance in muddy water. Additionally, J-type conduits fabricated from non-magnetic metallic materials such as copper and stainless steel exhibit significantly higher cable ampacity compared to polymeric materials like PE and PVC. As the soil’s temperature rises with the increasing environment temperature, its thermal conductivity efficiency decreases, consequently impairing cable heat dissipation and ampacity.https://www.mdpi.com/1996-1073/18/11/2900submarine cablecable ampacityJ-type conduittrenchless installationsfinite element model |
| spellingShingle | Xunping Yan Yun Cong Gang Qian Jianliang Xu Lu Sun Zhen Liu Investigation on the Ampacity of AC Submarine Cables in J-Type Conduit Trenchless Installation Energies submarine cable cable ampacity J-type conduit trenchless installations finite element model |
| title | Investigation on the Ampacity of AC Submarine Cables in J-Type Conduit Trenchless Installation |
| title_full | Investigation on the Ampacity of AC Submarine Cables in J-Type Conduit Trenchless Installation |
| title_fullStr | Investigation on the Ampacity of AC Submarine Cables in J-Type Conduit Trenchless Installation |
| title_full_unstemmed | Investigation on the Ampacity of AC Submarine Cables in J-Type Conduit Trenchless Installation |
| title_short | Investigation on the Ampacity of AC Submarine Cables in J-Type Conduit Trenchless Installation |
| title_sort | investigation on the ampacity of ac submarine cables in j type conduit trenchless installation |
| topic | submarine cable cable ampacity J-type conduit trenchless installations finite element model |
| url | https://www.mdpi.com/1996-1073/18/11/2900 |
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