CN101950620B - Sectional type submarine cable - Google Patents
Sectional type submarine cable Download PDFInfo
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- CN101950620B CN101950620B CN2010102814985A CN201010281498A CN101950620B CN 101950620 B CN101950620 B CN 101950620B CN 2010102814985 A CN2010102814985 A CN 2010102814985A CN 201010281498 A CN201010281498 A CN 201010281498A CN 101950620 B CN101950620 B CN 101950620B
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- submarine cable
- armour
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- metallic sheath
- cable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses a sectional type submarine cable comprising a conductor which is provided with an inner semi-conducting layer, an insulating layer, an outer semi-conducting layer, a metal sleeve, an armor layer and an outer covering layer in sequence from inside to outside. The sectional type submarine cable is divided into a submarine burying section and an overland burying section, wherein a semi-conducting non-metal sleeve is arranged between the metal sleeve and the armor layer of the submarine burying section, and an insulated non-metal sleeve is arranged between the metal sleeve and the armor layer of the overland burying section. The submarine cable can not only reduce inductive potential between the metal sleeve and the armor layer and decrease energy consumption, but also improve the carrying capacity of the submarine cable.
Description
Technical field
The present invention relates to a kind of submarine cable, particularly a kind of submarine cable of the nonmetal cover of employing of segmented.
Background technology
At present; Submarine cable generally can produce induced potential on metallic sheath, so need to adopt the method for ground connection to eliminate, make it safe operation; But can produce circulation loss so again; The ampacity of cable is reduced greatly, can not make full use of the current capacity of cable conductor, caused the wasting of resources to a certain extent.The structure of existing submarine cable is generally all added the layer of polyethylene sheath in the metallic sheath outside, makes it the anticorrosive coat as submarine cable, and has insulation property.In order to eliminate the electrical potential difference between submarine cable metallic sheath and the armour; Common practices be every at a distance from about 500 meters with the pe sheath strip off; Be welded on an end of one or more braiding copper cash on the metallic sheath; The other end contacts with wire armoring through the opening of pe sheath, thereby eliminates the electrical potential difference between metallic sheath and the armour.But the cable that adopts this method to lay, its metallic sheath discharge is inhomogeneous, and the opening part on the pe sheath is also thrown off easily, makes the cable water inlet easily, and antiseptic effect can't satisfy.
To the problems referred to above, (patent No.: CN200720192300.X) a kind of submarine cable is provided, this submarine cable is provided with the semiconductive polyethylene anticorrosive coating to Chinese invention patent between lead cover and armour; The direct ground connection of induced potential through this semiconductive polyethylene anticorrosive coating makes lead put generation is eliminated, and need not destroy inner covering, makes the discharge of plumbous cover even; Effective; And cable can not intake, favorable anti-corrosion effect, and also processing and manufacturing is also fairly simple.But since submarine cable be not lay fully underwater; Still there is the distance of hundreds of rice its debarkation point from transformer station; This segment distance is because be to be embedded in the land; And adopt its ampacity in the land of cable of said structure to be less than underwater portion, so this section cable that the land is buried underground can cause restriction to the ampacity of whole submarine cable, influences the ampacity of whole submarine cable.
Summary of the invention
To the deficiency of above-mentioned prior art, the technical problem that the present invention will solve provides a kind of induced potential that can eliminate between metallic sheath and the armour, can effectively improve the submarine cable of current-carrying capacity of cable again.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of segmented submarine cable; Comprise conductor; Be provided with interior semi-conductive layer, insulating barrier, outer semiconducting layer, metallic sheath, armour and serving on the said conductor from inside to outside successively; This segmented submarine cable is divided into the section of burying underground and the land section of burying underground two parts under water, is provided with the nonmetal cover of semiconductive between the metallic sheath of the wherein said section of burying underground under water and the armour, is provided with the insulated non-metal cover between the metallic sheath of the said land section of burying underground and the armour.
Preferably, said armour is the zinc-coated wire armour.
Preferably, the nonmetal cover of said semiconductive adopts the semiconductive polythene material.
Technique scheme has following beneficial effect: this segmented submarine cable is divided into the section of burying underground and the land section of burying underground two parts under water, and the nonmetal cover of semiconductive is set between the metallic sheath of the section of burying underground and the armour under water, and the nonmetal cover of this semiconductive can make the direct ground connection of the induced potential that produces on the metallic sheath eliminate; Make the discharge of metallic sheath even; Effectively reduce energy loss, and need not destroy inner covering; Can guarantee that cable can not intake favorable anti-corrosion effect; And being set to the insulated non-metal cover between the metallic sheath of the land section of burying underground and the armour, when burying underground in the land like this, the ampacity of this section cable just can not diminish, and can guarantee that whole submarine cable has bigger ampacity.Therefore adopt the submarine cable of this structure both can eliminate the induced potential between metallic sheath and the armour, reduce energy loss, can effectively improve the ampacity of submarine cable again.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention, understands technological means of the present invention in order can more to know, and can implement according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. specify as after.Embodiment of the present invention is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the embodiment of the invention cutaway view of the section of burying underground under water.
Fig. 3 is the cutaway view of the land section of burying underground of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
Like Fig. 1,2, shown in 3, this segmented submarine cable comprises conductor 1, semi-conductive layer 2, insulating barrier 3, outer semiconducting layer 4, metallic sheath 5, armour 7 and serving 8 in being provided with successively from inside to outside on the conductor 1, and armour 7 is the zinc-coated wire armour.This segmented submarine cable is divided into the section of burying underground 10 and the land section of burying underground 11 two parts under water, wherein is provided with the nonmetal cover 6 of semiconductive under water between the metallic sheath 5 of the section of burying underground 10 and the armour 7, and the nonmetal cover 6 of this semiconductive adopts the semiconductive polythene material.Be provided with insulated non-metal cover 9 between the metallic sheath 5 of the land section of burying underground 11 and the armour 7.
The whole manufacturing process of this submarine cable is basic identical with general submarine cable; Conductor 1 through regular stranded after; Be expressed into the outside of conductor 1 to interior semi-conductive layer 2, insulating barrier 3, outer semiconducting layer 4 from inside to outside simultaneously, wrap metallic sheath 5 then, then squeeze into the nonmetal cover 6 of semiconductive on the metallic sheath of the section of burying underground 10 under water; And squeeze into insulated non-metal cover 9 on the metallic sheath of the section of burying underground 11 by land; On whole cable, wrap armour 7, serving 8 at last again, the processing of whole like this cable can be accomplished, very simple of processing technology.
This segmented submarine cable nonmetal cover 6 of semiconductive on the section of burying underground 10 under water can make the direct ground connection of the induced potential that produces on the metallic sheath 5 eliminate; Make the discharge of metallic sheath 5 even, effectively reduce energy loss, and need not destroy inner covering; Can guarantee that cable can not intake favorable anti-corrosion effect; And the land section of burying underground 11 adopts insulated non-metal cover 9 at metallic sheath and armour, and when this section cable was buried underground in the land, the ampacity of this section cable was can not diminish, and so just can guarantee that whole submarine cable has bigger ampacity.Therefore adopt the submarine cable of this structure both can eliminate the induced potential between metallic sheath and the armour, reduce energy loss, can effectively improve the ampacity of submarine cable again.
More than the segmented submarine cable that the embodiment of the invention provided has been carried out detailed introduction; For one of ordinary skill in the art; According to the thought of the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum; This description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (2)
1. segmented submarine cable; Comprise conductor; Be provided with interior semi-conductive layer, insulating barrier, outer semiconducting layer, metallic sheath, armour and serving on the said conductor from inside to outside successively; It is characterized in that: this segmented submarine cable is divided into the section of burying underground and the land section of burying underground two parts under water; Be provided with the nonmetal cover of semiconductive between the metallic sheath of the wherein said section of burying underground under water and the armour, be provided with the insulated non-metal cover between the metallic sheath of the said land section of burying underground and the armour, the nonmetal cover of said semiconductive adopts the semiconductive polythene material.
2. segmented submarine cable according to claim 1 is characterized in that: said armour is the zinc-coated wire armour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102814985A CN101950620B (en) | 2010-09-14 | 2010-09-14 | Sectional type submarine cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102814985A CN101950620B (en) | 2010-09-14 | 2010-09-14 | Sectional type submarine cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101950620A CN101950620A (en) | 2011-01-19 |
| CN101950620B true CN101950620B (en) | 2012-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102814985A Active CN101950620B (en) | 2010-09-14 | 2010-09-14 | Sectional type submarine cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN101950620B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016029141A1 (en) | 2014-08-21 | 2016-02-25 | Materion Corporation | Wire for deep water transmission |
| CN110415881A (en) * | 2019-08-21 | 2019-11-05 | 圣安电缆有限公司 | The multi-functional compound island power cable of one kind and its manufacturing process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06325625A (en) * | 1993-05-10 | 1994-11-25 | Furukawa Electric Co Ltd:The | Submarine power cable |
| JP3641529B2 (en) * | 1996-09-17 | 2005-04-20 | 株式会社フジクラ | Oil-immersed paper solid DC submarine cable |
| CN201130552Y (en) * | 2007-10-31 | 2008-10-08 | 宁波东方电缆股份有限公司 | Undersea cable |
| CN101807450B (en) * | 2010-03-29 | 2012-10-31 | 浙江省电力公司舟山电力局 | Sea electric power cable |
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2010
- 2010-09-14 CN CN2010102814985A patent/CN101950620B/en active Active
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| Publication number | Publication date |
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| CN101950620A (en) | 2011-01-19 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200093 No. 1000, military road, Shanghai, Yangpu District Patentee after: SHANGHAI ELECTRIC CABLE RESEARCH INSTITUTE Co.,Ltd. Address before: 200093 No. 1000, military road, Shanghai, Yangpu District Patentee before: SHANGHAI ELECTRIC CABLE Research Institute |
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| CP01 | Change in the name or title of a patent holder | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110119 Assignee: China Aviation Baosheng Ocean Engineering Cable Co.,Ltd. Assignor: SHANGHAI ELECTRIC CABLE RESEARCH INSTITUTE Co.,Ltd. Contract record no.: X2022320000100 Denomination of invention: Segmented submarine cable Granted publication date: 20120104 License type: Exclusive License Record date: 20220613 |
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| EE01 | Entry into force of recordation of patent licensing contract |