海底电缆用阻水型线导体设计方法及试验研究

doi:10.11930/j.issn.1004-9649.202009090

中国电力 ›› 2021, Vol. 54 ›› Issue (4): 80-86.DOI: 10.11930/j.issn.1004-9649.202009090

• 高压电缆及附件关键技术专栏 • 上一篇下一篇

海底电缆用阻水型线导体设计方法及试验研究

王文超¹, 薛驰², 胡明¹, 赵囿林¹, 谢书鸿², 王海洋¹, 叶成¹, 聂影¹

1. 中天科技海缆股份有限公司, 江苏南通 226010;
2. 中天科技股份有限公司, 江苏南通 226463

收稿日期:2020-09-09 修回日期:2020-10-31 发布日期:2021-04-23
作者简介:王文超(1990-),男,通信作者,硕士,工程师,从事海底电缆研发和工艺研究,E-mail:wangwc@chinaztt.com
基金资助:
国家电网公司科技项目(±500 kV柔性直流海缆设计及制造关键技术研究，SGRIDGKJ[2016]1079)

Design Method and Experimental Study of Water-Blocking Special-Shaped Wire Conductor for Submarine Cable

WANG Wenchao¹, XUE Chi², HU Ming¹, ZHAO Youlin¹, XIE Shuhong², WANG Haiyang¹, Ye Cheng¹, NIE Ying¹

1. Zhongtian Technology Submarine Cables Co., Ltd., Nangtong 226100, China;
2. Zhongtian Technology Co., Ltd., Nangtong 226463, China

Received:2020-09-09 Revised:2020-10-31 Published:2021-04-23
Supported by:
This work is supported by Science and Technology Project of SGCC(Research on Key Technology of ±500kV Flexible DC Submarine Cable Design and Manufacture, No.SGRIDGKJ[2016]1079)

摘要/Abstract

摘要： 阻水导体的设计制造是海底电缆领域内的关键课题之一。提出一种等截面梯形型线阻水导体结构的理论设计方法，通用性强，可编程性高，适用于50~3 500 mm²阻水导体的设计和生产制造，可解决阻水型线导体设计和制造困难、尺寸不合理等问题，导体填充系数可达到0.96以上；然后，通过阻水、机械、电气性能试验，验证所述理论设计方法和工艺制造的合理性，导体结构对海缆的整体性能无不良影响，且阻水胶型线导体结构优于阻水带结构；最后，根据理论计算，所述方法设计的中压海缆型线导体外径比紧压圆形导体小3.9%~7.0%，最大可降低1.1%的制造成本。导体截面越大，型线导体结构优化越显著，验证了型线结构海缆的经济性。

关键词: 阻水导体, 型线导体, 阻水胶, 海底电缆, 设计方法

Abstract: The design and manufacture of water-blocking conductor is one of the key research topics in field of submarine cable. A new theoretical design method is proposed for trapezoidal wire water-blocking conductor with structures of constant cross section, which has strong versatility and high programmability, suitable for design and manufacturing of water-blocking conductor with a cross-section ranging from 50 mm² to 3500 m². The problems such as difficult design & manufacturing and unreasonable conductor size could be solved, with a filling coefficient of conductor reaching more than 0.96. Then, the rationality of the theoretical design method and manufacturing process is verified through water-blocking, mechanical and electrical performance tests. The trapezoidal wire conductor structure has no adverse effect on the cable’s overall performance, and the water-blocking glue conductor is better than that of the water-blocking tape structure. Finally, according to theoretical calculation, the outer diameter of the trapezoidal wire conductor for medium voltage submarine cables designed with the proposed method are 3.9% ~ 7.0% smaller than that of compact circular conductor, which can reduce the manufacturing cost by 1.1%. With the larger conductor cross-section, the structure optimization is more significant, which verifies the economy of submarine cables with trapezoidal wire conductor structure.

Key words: water-blocking conductor, special-shaped wire conductor, water-blocking glue, submarine cable, design method

王文超, 薛驰, 胡明, 赵囿林, 谢书鸿, 王海洋, 叶成, 聂影. 海底电缆用阻水型线导体设计方法及试验研究[J]. 中国电力, 2021, 54(4): 80-86.

WANG Wenchao, XUE Chi, HU Ming, ZHAO Youlin, XIE Shuhong, WANG Haiyang, Ye Cheng, NIE Ying. Design Method and Experimental Study of Water-Blocking Special-Shaped Wire Conductor for Submarine Cable[J]. Electric Power, 2021, 54(4): 80-86.

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海底电缆用阻水型线导体设计方法及试验研究

Design Method and Experimental Study of Water-Blocking Special-Shaped Wire Conductor for Submarine Cable

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