500 kv ac submarine cable using large cross section formed wire conductors

A submarine cable and wire conductor technology, applied in the direction of submarine cables, conductors, power cables with shielding layer/conductive layer, etc., to achieve the effects of high filling factor, high production efficiency, and large transmission carrying capacity

Inactive Publication Date: 2016-11-09
ZHONGTIAN TECH SUBMARINE CABLE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] 2000mm 2 Conductors with a cross-section and below can currently use compact circular conductors, but the cross-section exceeds 2000mm 2 When cross-section, the existing equipment capacity can not meet, but the future demand transmission capacity of the power grid is increasing, which requires the development of a new structure of large cross-section water-blocking conductors to meet the needs of higher transmission capacity submarine cables, large cross-section wire conductor structure compact , high filling factor, excellent water blocking performance, can meet the needs of underwater power transmission and large-length production

Method used

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  • 500 kv ac submarine cable using large cross section formed wire conductors
  • 500 kv ac submarine cable using large cross section formed wire conductors

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Embodiment Construction

[0021] Such as figure 1 A 500kV AC submarine cable with a large cross-section shaped wire conductor shown includes a shaped wire water-blocking copper conductor 1, a conductor shielding layer 2, an insulating layer 3, an insulating shielding layer 4, a water-blocking tape wrapping layer 5, a metal sheath 6, Polyethylene sheath 7, armor layer 8, outer sheath 9. A conductor shielding layer 2 is arranged outside the water-blocking conductor 1, an insulating layer 3 is arranged outside the conductor shielding layer 2, an insulating shielding layer 4 is arranged outside the insulating layer 3, and a water-blocking tape wrapping is arranged outside the insulating shielding layer 4 Layer 5, a metal sheath 6 is arranged outside the water blocking tape wrapping layer 5, a polyethylene sheath 7 is arranged outside the metal sheath 6, an armor layer 8 is arranged outside the polyethylene sheath 7, and an armor layer 8 is arranged outside the polyethylene sheath 7. Layer 8 is provided wi...

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Abstract

The invention discloses a 500 kV AC submarine cable using large cross section formed wire conductors. The cable comprises formed water-resistant copper formed wire conductors arranged from inside to outside successively, a conductor shielding layer, an insulating layer, an insulating shielding layer, a water-resistant band cladding, a metal protective layer, a polyethylene protective layer, an armor, and an outer jacket. Each copper formed wire conductor is formed by a central conductor core, trapezoid copper single wires, and water-resistant filling materials. The central conductor core is manufactured by layered pressing and twisting of round copper single wires with or without metal plating layers. According to the entire conductor cross section, the central conductor core chooses to be manufactured either through single layer twisting or multi-layer single-wire layered pressing and twisting. The cable can support continuous production of large cross section conductors with cross section area not less than 2000 mm<2>. Compared with pressed conductors with the same cross section area, the conductor of the invention is smaller in outer diameter, higher in filling coefficient, and more excellent in water resistance. The conductor has advantages such as large transmission current-carrying capacity, low medium losses, high production efficiency, and convenient operation maintenance, and leads the technical innovation of global cable industry.

Description

technical field [0001] The invention relates to a submarine cable, in particular to a 500kV cross-linked polyethylene insulated AC submarine power cable with a large cross-section conductor, and belongs to the technical field of cable manufacturing. Background technique [0002] 2000mm 2 Conductors with a cross-section and below can currently use compact circular conductors, but the cross-section exceeds 2000mm 2 When cross-section, the existing equipment capacity can not meet, but the future demand transmission capacity of the power grid is increasing, which requires the development of a new structure of large cross-section water-blocking conductors to meet the needs of higher transmission capacity submarine cables, large cross-section wire conductor structure compact , high filling factor and excellent water blocking performance, which can meet the needs of underwater power transmission and large-length production. [0003] 500kV XLPE insulated cables were first used in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/14H01B7/17H01B7/18H01B7/28H01B7/282H01B7/285H01B9/02
CPCY02A30/14H01B7/14H01B7/17H01B7/182H01B7/2806H01B7/282H01B7/2825H01B7/285H01B9/02
Inventor 赵囿林张建民张宝磊张洪亮夏云海薛建林谢书鸿
Owner ZHONGTIAN TECH SUBMARINE CABLE CO LTD
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