CN105632615A - 500kV composite optical-fiber submarine cable - Google Patents
500kV composite optical-fiber submarine cable Download PDFInfo
- Publication number
- CN105632615A CN105632615A CN201610221540.1A CN201610221540A CN105632615A CN 105632615 A CN105632615 A CN 105632615A CN 201610221540 A CN201610221540 A CN 201610221540A CN 105632615 A CN105632615 A CN 105632615A
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- China
- Prior art keywords
- layer
- arranged outside
- optical fiber
- red copper
- submarine cable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
Abstract
The invention relates to a 500kV composite optical-fiber submarine cable. The 500kV composite optical-fiber submarine cable comprises a conductor arranged in the cable, an inner shielding layer arranged outside the conductor, an insulation layer arranged outside the inner shielding layer, an outer shielding layer arranged outside the insulation layer and a metal jacket arranged outside the outer shielding layer, wherein a buffer semiconductive water blocking tape is arranged between the outer shielding layer and the metal jacket, a semiconductive PE jacket is arranged outside the metal jacket, a semiconductive PP lining layer is arranged outside the semiconductive PE jacket, a PE filler strip and an optical fiber are arranged outside the semiconductive PP lining layer, two sides of the optical fiber are provided with a hard aluminum alloy wire protecting the optical fiber, a red copper armored layer is arranged outside the PE filler strip, the diameter of a red copper wire in the red copper armored layer is 6mm, and a semiconductive PP outer cladding layer is arranged outside the red copper armored layer. The submarine cable is lower in armored eddy current loss and magnetic hysteresis loss, high in power transmission efficiency, good in a grounding system and applicable to 500kV or higher ultra-high voltage power transmission; and meanwhile, the submarine cable is a composite photovoltaic cable and is multifunctional.
Description
Technical field
The invention belongs to field of cables, it is specifically related to a kind of 500kV optical fiber composite submarine cable.
Background technology
Undersea cable divides submarine communication cable subsea power cable. Submarine communication cable is mainly used in communication business, and expense is expensive, but privacy degrees height. Subsea power cable is mainly used in underwater transmission high-power power, due to the severe complex environment in seabed, undersea cable proposes very high requirement, and manufacture difficulty is big, maintenance difficult.
In prior art, also seldom having the undersea cable being applicable to extra-high pressure transmission of electricity (500kV and more than), carry out extra-high pressure when transmitting electricity, had higher requirement by insulating property, the anti-hysteresis property of undersea cable, the present invention has studied this side up.
Summary of the invention
For deficiency of the prior art, the present invention provides a kind of optical fiber composite submarine cable being applicable to extra-high pressure transmission of electricity, has good insulating property and anti-hysteresis property.
The present invention is achieved through the following technical solutions.
A kind of 500kV optical fiber composite submarine cable, comprise the conductor being located in cable, the interior screen layer being located at outside conductor, the insulation layer being located at outside interior screen layer, the external shielding layer being located at outside insulation layer, the metal covering being located at outside external shielding layer, buffering semiconductor waterstop it is provided with between described external shielding layer and metal covering, semiconduction PE sheath it is provided with outside described metal covering, it is provided with semiconduction PP air retaining wall outside described semiconduction PE sheath, it is provided with PE packing and optical fiber outside described semiconduction PP air retaining wall, the both sides of described optical fiber are provided with the duralumin silk of protection optical fiber, it is provided with red copper armor layer outside described PE packing, red copper filament diameter 6mm in described red copper armor layer, semiconduction PP serving it is provided with outside described red copper armor layer.
In prior art, it is limited in the environment of sea bottom complex and EHV transmission process the huge eddy-current loss and magnetic hysteresis loss brought, the internal structure of undersea cable has been improved by the present invention, wherein, the semiconductive material that the equal alternative costs of sheath, air retaining wall, serving are lower, while ensureing normal performance, effectively improve the ground system of undersea cable, make the operation of undersea cable more stable.
In the present invention, in order to the EHV transmission adapted in environments such as subsea, armor layer in the present invention uses red copper silk to carry out armouring, red copper also claims red metal, is also fine copper, selects the red copper of high purity in the present invention, other metal alloys of its resistance ratio are much little, can effectively reduce armouring eddy-current loss and magnetic hysteresis loss, it is to increase current capacity, it is to increase transmission of electricity efficiency; Meanwhile, being provided with and the optical fiber that PE packing is set together, make it to become photoelectric composite submarine cable in the present invention, can carry out the transmission of optical signal while transmission of electricity, PE packing can strengthen the mechanical property of cable simultaneously, reduces costs simultaneously.
As preferably, the material of described insulation layer is crosslinked polyethylene.
As preferably, described metal covering is plumbous cover.
Compared with prior art, the present invention has following useful effect: the undersea cable in the present invention, there is lower armouring eddy-current loss and magnetic hysteresis loss, transmission of electricity efficiency height, ground system is good, being applicable to 500kV and the transmission of electricity of above extra-high pressure, this undersea cable is photoelectricity compound cable simultaneously, and function is many.
Accompanying drawing explanation
Fig. 1 is the sectional view of the undersea cable in the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
See Fig. 1, a kind of 500kV optical fiber composite submarine cable, comprise the conductor 1 being located in cable, the interior screen layer 2 being located at outside conductor 1, the insulation layer 3 being located at outside interior screen layer 2, the external shielding layer 4 being located at outside insulation layer 3, the metal covering 6 being located at outside external shielding layer 4, buffering semiconductor waterstop 5 it is provided with between described external shielding layer 4 and metal covering 6, semiconduction PE sheath 7 it is provided with outside described metal covering 6, it is provided with semiconduction PP air retaining wall 10 outside described semiconduction PE sheath 7, it is provided with PE packing 11 and optical fiber 8 outside described semiconduction PP air retaining wall 10, the both sides of described optical fiber 8 are provided with the duralumin silk 9 of protection optical fiber, enough protection intensity is provided, it is provided with red copper armor layer 13 outside described PE packing 11, red copper filament diameter 6mm in described red copper armor layer 13, semiconduction PP serving 14 it is provided with outside described red copper armor layer 13.
In present embodiment, the material of described insulation layer 3 is crosslinked polyethylene; Described metal covering 6 is plumbous cover.
Armouring of the present invention selects diameter to be the red copper silk of 6mm, purity height, and resistance is little, makes armouring eddy-current loss and magnetic hysteresis loss less, it is to increase current capacity, it is to increase transmission of electricity efficiency; For 500kV and above EHV transmission undersea cable, in its diameter ratio, the undersea cable of low pressure transmission of electricity is much larger, under this kind of specification, the specification of armouring red copper silk is very relevant to the anti-eddy-current loss of cable and magnetic hysteresis loss ability, correlated performance test is as shown in the table, when following table is 500kV EHV transmission, the current capacity correlation data of undersea cable under different copper products, different brass wire diameters.
| 4mm | 5mm | 5.5mm | 6mm | 6.5mm | 7mm | 7.5mm | |
| Red copper | 100% | 103% | 107% | 115% | 117% | 119% | 118% |
| Brass | 81% | 84% | 85% | 88% | 92% | 91% | 93% |
| Bronze | 78% | 81% | 84% | 89% | 92% | 92% | 91% |
More than can find out, the performance of purple copper wire armored is obviously better than other copper alloy armourings, and when the diameter of red copper silk be 6mm and above time, the performance of armouring has a significantly lifting, for considering of cost and performance, the present invention selects the purple copper wire armored of 6mm diameter.
The above, the 500kV optical fiber composite submarine cable in the present invention has lower armouring eddy-current loss and magnetic hysteresis loss, transmission of electricity efficiency height, can be applicable to 500kV and the transmission of electricity of above extra-high pressure.
In another embodiment of the invention, it is lined with conduction PP pad between the red copper armouring bundle adjacent each other in red copper armor layer 13, increases the radial surge capability of undersea cable, it is to increase its mechanical property.
Protection scope of the present invention includes but not limited to above enforcement mode, and protection scope of the present invention is as the criterion with claim book, and any replacement that those skilled in the art will find apparent that of this technology being made, distortion, improvement all fall into protection scope of the present invention.
Claims (3)
1. a 500kV optical fiber composite submarine cable, comprise the conductor (1) being located in cable, it is located at conductor (1) interior screen layer (2) outward, it is located at interior screen layer (2) insulation layer (3) outward, it is located at insulation layer (3) external shielding layer (4) outward, it is located at external shielding layer (4) metal covering (6) outward, it is characterized in that, buffering semiconductor waterstop (5) it is provided with between described external shielding layer (4) and metal covering (6), semiconduction PE sheath (7) it is provided with outside described metal covering (6), it is provided with semiconduction PP air retaining wall (10) outside described semiconduction PE sheath (7), PE packing (11) and optical fiber (8) it is provided with outside described semiconduction PP air retaining wall (10), the both sides of described optical fiber (8) are provided with the duralumin silk (9) of protection optical fiber, it is provided with red copper armor layer (13) outside described PE packing (11), red copper filament diameter 6mm in described red copper armor layer (13), it is provided with semiconduction PP serving (14) outside described red copper armor layer (13).
2. a kind of 500kV optical fiber composite submarine cable according to claim 1, it is characterised in that, the material of described insulation layer (3) is crosslinked polyethylene.
3. a kind of 500kV optical fiber composite submarine cable according to claim 2, it is characterised in that, described metal covering (6) is plumbous cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610221540.1A CN105632615B (en) | 2016-04-11 | 2016-04-11 | A kind of 500kV optical fiber composite submarine cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610221540.1A CN105632615B (en) | 2016-04-11 | 2016-04-11 | A kind of 500kV optical fiber composite submarine cables |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105632615A true CN105632615A (en) | 2016-06-01 |
| CN105632615B CN105632615B (en) | 2017-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610221540.1A Active CN105632615B (en) | 2016-04-11 | 2016-04-11 | A kind of 500kV optical fiber composite submarine cables |
Country Status (1)
| Country | Link |
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| CN (1) | CN105632615B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128582A (en) * | 2016-08-08 | 2016-11-16 | 中天科技海缆有限公司 | A kind of heavy in section molded line conductor 500kV Optical Fiber Composite exchange submarine cable |
| CN106128583A (en) * | 2016-08-08 | 2016-11-16 | 中天科技海缆有限公司 | The crosslinked polyetylene insulated optical fiber composite submarine power cable of 500kV |
| CN110828049A (en) * | 2019-11-06 | 2020-02-21 | 江苏亨通高压海缆有限公司 | Full-locking type steel wire armored submarine power cable and design method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6380418A (en) * | 1986-09-24 | 1988-04-11 | 日本電信電話株式会社 | Submarine optical fiber cable |
| CN102280195A (en) * | 2011-05-23 | 2011-12-14 | 江苏亨通高压电缆有限公司 | High voltage and supervoltage cross-linked polyethylene insulating submarine power cable with single core |
| CN202363163U (en) * | 2011-11-24 | 2012-08-01 | 无锡江南电缆有限公司 | High voltage DC submarine cable |
| CN203102993U (en) * | 2013-02-04 | 2013-07-31 | 宁波东方电缆股份有限公司 | +/-200 kV flexible direct-current submarine cable for power transmission |
| CN204117683U (en) * | 2014-09-23 | 2015-01-21 | 宁波东方电缆股份有限公司 | A kind of single core photoelectric composite sea cable |
-
2016
- 2016-04-11 CN CN201610221540.1A patent/CN105632615B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6380418A (en) * | 1986-09-24 | 1988-04-11 | 日本電信電話株式会社 | Submarine optical fiber cable |
| CN102280195A (en) * | 2011-05-23 | 2011-12-14 | 江苏亨通高压电缆有限公司 | High voltage and supervoltage cross-linked polyethylene insulating submarine power cable with single core |
| CN202363163U (en) * | 2011-11-24 | 2012-08-01 | 无锡江南电缆有限公司 | High voltage DC submarine cable |
| CN203102993U (en) * | 2013-02-04 | 2013-07-31 | 宁波东方电缆股份有限公司 | +/-200 kV flexible direct-current submarine cable for power transmission |
| CN204117683U (en) * | 2014-09-23 | 2015-01-21 | 宁波东方电缆股份有限公司 | A kind of single core photoelectric composite sea cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128582A (en) * | 2016-08-08 | 2016-11-16 | 中天科技海缆有限公司 | A kind of heavy in section molded line conductor 500kV Optical Fiber Composite exchange submarine cable |
| CN106128583A (en) * | 2016-08-08 | 2016-11-16 | 中天科技海缆有限公司 | The crosslinked polyetylene insulated optical fiber composite submarine power cable of 500kV |
| CN110828049A (en) * | 2019-11-06 | 2020-02-21 | 江苏亨通高压海缆有限公司 | Full-locking type steel wire armored submarine power cable and design method thereof |
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| CN105632615B (en) | 2017-08-08 |
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