Title:
MULTI-CORE DIRECT-CURRENT SUBMARINE CABLE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2021/227212
Kind Code:
A1
Abstract:
Disclosed are a multi-core direct-current submarine cable and a method for producing same. The multi-core direct-current submarine cable comprises: two identical polar electric units (11, 12), an additional electric unit assembly (13), several filling strips (15), a belt (161), a cushion layer (162), an armor layer (163) and an outer protective layer (164). The cross-sectional outer diameter of the additional electric unit assembly is the same as the cross-sectional outer diameter of each polar electric unit; the two polar electric units and the additional electric unit assembly are twisted together, and are sequentially provided with the belt, the cushion layer, the armor layer and the outer protective layer wrapped around same; and the several filling strips are disposed in gaps between the two polar electric units and the belt and between the additional electric unit assembly and the belt. The multi-core direct-current submarine cable is conducive to saving laying costs and laying time, and the problem of roundness of electric units with different outer diameters can be effectively solved. In the method for producing the multi-core direct-current submarine cable, the two polar electric units and the additional electric unit assembly are twisted by means of gravity in a vertical direction, and twisting of the multi-core direct-current submarine cable can be stably and efficiently achieved.
Inventors:
ZHANG HONGLIANG (CN)
XIE SHUHONG (CN)
HU MING (CN)
YU HONGMIAO (CN)
XUE JIANLIN (CN)
YAN YAN (CN)
YAN ZHIYU (CN)
XIE SHUHONG (CN)
HU MING (CN)
YU HONGMIAO (CN)
XUE JIANLIN (CN)
YAN YAN (CN)
YAN ZHIYU (CN)
Application Number:
PCT/CN2020/098622
Publication Date:
November 18, 2021
Filing Date:
June 28, 2020
Export Citation:
Assignee:
ZHONGTIAN TECH SUBMARINE CABLE CO LTD (CN)
International Classes:
H01B7/14; H01B7/18; H01B9/00; H01B9/02; H01B13/02; H01B13/22; H01B13/26
Domestic Patent References:
| WO2019121590A1 | 2019-06-27 |
Foreign References:
| CN105683798A | 2016-06-15 | |||
| CN208622498U | 2019-03-19 | |||
| CN108565057A | 2018-09-21 |
Other References:
See also references of EP 4152346A1
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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