CN204257268U - The novel power cable with cross-linked polyethylene insulation of rated voltage 750kV - Google Patents
The novel power cable with cross-linked polyethylene insulation of rated voltage 750kV Download PDFInfo
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- CN204257268U CN204257268U CN201420724913.3U CN201420724913U CN204257268U CN 204257268 U CN204257268 U CN 204257268U CN 201420724913 U CN201420724913 U CN 201420724913U CN 204257268 U CN204257268 U CN 204257268U
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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
A novel power cable with cross-linked polyethylene insulation of rated voltage 750kV, belongs to power cable technical field, and the insulated power cable being intended to solve existing voltage levels is not suitable with the problem of rated voltage 750kV high-voltage power transmission operation.It connects semiconductive nylon tape at conductor thread core outside bag, the inside coated semiconductive nylon tape of internal layer ultra-smooth semiconductive shielding layer, the outer crosslinked polyetylene insulated layer of coated ultrapurification and outer ultra-smooth semiconductive shielding layer simultaneously, after the outside bag of outer ultra-smooth semiconductive shielding layer connects semi-conductive buffer water-blocking band, again coated copper wire fiber shuffling layer of cloth, again bag connect corrugated metallic sheath, corrugated metallic sheath outside is coated with cable asphalt layer, insulated type polyvinyl chloride oversheath successively, and the outer surface of insulated type polyvinyl chloride oversheath has graphite linings.Its reasonable in design, is suitable for the power cable etc. making more than rated voltage 500kV to rated voltage 750kV.
Description
Technical field
The utility model belongs in a kind of electric power system basic routing line of power cable technical field in order to transmission and the insulated power cable of voltage levels distributing high-power power.
Background technology
Along with the growing of power industry and the continuous progress of industrial and agricultural production technology, voltage levels, transmission and the heavy in section of distribution high-power power, the demand of jumbo power transmission cable progressively increase, therefore also more and more higher to the technical requirement of power cable.In known technology, the conductor be twisted into by copper cash or aluminum steel that the insulated power cable of existing voltage levels mainly adopts is externally to outer coating conductor screen, crosslinked polyetylene insulated layer, buffer water-blocking band, corrugated metallic sheath, cable asphalt layer, oversheath successively.But limit by its structure, for more than rated voltage 500kV as the transmission of the high-power power of rated voltage 750kV voltage levels with when distributing, its proof voltage, insulation property, water permeability and high-drop installation are just restricted, and are not suitable with the electric power transfer operation of more than rated voltage 500kV to rated voltage 750kV voltage levels.
Utility model content
In order to overcome deficiency of the prior art, solve the problem that the proof voltage of the insulated power cable of existing voltage levels, insulation property etc. are not suitable with the electric power transfer operation of more than rated voltage 500kV to rated voltage 750kV voltage levels.The object of the utility model is to provide a kind of reasonable in design, and its proof voltage, insulation property, water permeability and high-drop installation etc. adapt to the novel power cable of the electric power transfer operation of more than rated voltage 500kV to rated voltage 750kV voltage levels.
The technical scheme in the invention for solving the above technical problem is:
The novel power cable with cross-linked polyethylene insulation of a kind of rated voltage 750kV, it is provided with: conductor thread core, semiconductive nylon tape, ultra-smooth semiconductive shielding layer, the crosslinked polyetylene insulated layer of ultrapurification, semi-conductive buffer water-blocking band, cable asphalt layer, insulated type polyvinyl chloride oversheath, graphite linings, copper wire fiber shuffling layer of cloth, corrugated metallic sheath, ultra-smooth semiconductive shielding layer comprises internal layer ultra-smooth semiconductive shielding layer and outer ultra-smooth semiconductive shielding layer, internal layer ultra-smooth semiconductive shielding layer is coated on the outside that inner bag is connected with the semiconductive nylon tape of conductor thread core, the crosslinked polyetylene insulated layer of external sheath ultrapurification of internal layer ultra-smooth semiconductive shielding layer, the outside coated outer ultra-smooth semiconductive shielding layer of the crosslinked polyetylene insulated layer of ultrapurification, the outside bag of outer ultra-smooth semiconductive shielding layer connects semi-conductive buffer water-blocking band, the outside ladle cover of semi-conductive buffer water-blocking band has copper wire fiber shuffling layer of cloth, copper wire fiber shuffling layer of cloth outside bag connects corrugated metallic sheath, corrugated metallic sheath outside is coated with cable asphalt layer successively, insulated type polyvinyl chloride oversheath, the outer surface of insulated type polyvinyl chloride oversheath has graphite linings.
The novel power cable with cross-linked polyethylene insulation of above-mentioned rated voltage 750kV, described conductor thread core is that cylindrical conductors stock block periphery bag connects tile-type conductor stock block, and embeddingly between milliken conductor stock block is connected with wrinkle ply of paper.
The novel power cable with cross-linked polyethylene insulation of above-mentioned rated voltage 750kV, described corrugated metallic sheath be corrugated aluminum sheath, wrinkle copper sheath, wrinkle stainless steel sheath any one.
The novel power cable with cross-linked polyethylene insulation of above-mentioned rated voltage 750kV, the crosslinked polyetylene insulated layer of described ultrapurification is made up of ultrapurification cross-linking polyethylene materials, and ultra-smooth semiconductive shielding layer is made up of ultra-smooth semi-conductive shielding material.
The novel power cable with cross-linked polyethylene insulation of above-mentioned rated voltage 750kV, the nominal thickness of described insulated type polyvinyl chloride oversheath is 6.0mm; Ultra-smooth semiconductive shielding layer and the crosslinked polyetylene insulated bed boundary of ultrapurification are greater than the micropore of 0.02mm without aperture; Ultra-smooth semiconductive shielding layer and the crosslinked polyetylene insulated bed boundary of ultrapurification are without the projection being greater than 0.05mm.
When the utility model uses, according to designing requirement, this novel power cable with cross-linked polyethylene insulation is carried out laying task.
The power cable product that the utility model makes, detects voltage, as following table through actual tests:
Because the utility model design have employed technique scheme, efficiently solve the problem that the proof voltage of the insulated power cable of existing voltage levels, insulation property etc. are not suitable with the electric power transfer operation of more than rated voltage 500kV to rated voltage 750kV voltage levels.Also and inspection on probation through actual tests shows, it has reasonable in design, high voltage withstanding, excellent insulating property, water permeability are good and be suitable for the advantages such as high-drop installation, applicablely makes more than rated voltage 500kV to rated voltage 750kV (U
m=800kV) power cable, be also suitable for use as and pass through rivers, lake etc. and be laid in power cable in wet environment.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structure diagram of the utility model embodiment.
To be that in Fig. 1, conductor thread core 1 is embedding connect wrinkle ply of paper 12 and connect the structure for amplifying sketch of semiconductive nylon tape 2 Fig. 2.
In accompanying drawing, each label is: 1 conductor thread core; 1-1 round conductor stock block; 1-2 tile-type conductor stock block; 2 semiconductive nylon tapes; 3 internal layer ultra-smooth semiconductive shielding layers; The crosslinked polyetylene insulated layer of 4 ultrapurification; 5 outer ultra-smooth semiconductive shielding layers; 6 semi-conductive buffer water-blocking bands; 7 copper wire fiber shuffling layer of cloths; 8 wrinkle copper sheaths; 9 cable asphalt layers; 10 insulated type polyvinyl chloride oversheaths; 11 graphite linings; 12 wrinkle ply of papers.
Embodiment
As embodiment illustrated in fig. 2 in accompanying drawing 1-, the utility model is provided with: conductor thread core 1, semiconductive nylon tape 2, internal layer ultra-smooth semiconductive shielding layer 3, outer ultra-smooth semiconductive shielding layer 5, the crosslinked polyetylene insulated layer 4 of ultrapurification, semi-conductive buffer water-blocking band 6, cable asphalt layer 9, insulated type polyvinyl chloride oversheath 10, graphite linings 11, copper wire fiber shuffling layer of cloth 7, wrinkle copper sheath 8, internal layer ultra-smooth semiconductive shielding layer 3 is coated on the outside of semiconductive nylon tape 2, the inside bag of semiconductive nylon tape 2 is connected with conductor thread core 1, the crosslinked polyetylene insulated layer 4 of external sheath ultrapurification of internal layer ultra-smooth semiconductive shielding layer 3, the outside coated outer ultra-smooth semiconductive shielding layer 5 of ultrapurification crosslinked polyetylene insulated layer 4, the outside bag of outer ultra-smooth semiconductive shielding layer 5 connects semi-conductive buffer water-blocking band 6, the outside ladle cover of semi-conductive buffer water-blocking band 6 has copper wire fiber shuffling layer of cloth 7, copper wire fiber shuffling layer of cloth 7 outside bag connects wrinkle copper sheath 8, wrinkle copper sheath 8 outside is coated with cable asphalt layer 9 successively, insulated type polyvinyl chloride oversheath 10, the outer surface of insulated type polyvinyl chloride oversheath 10 has graphite linings 11, the crosslinked polyetylene insulated layer of described ultrapurification is made up of ultrapurification crosslinked polyethylene (XLPE) material, and ultra-smooth semiconductive shielding layer is made up of ultra-smooth semi-conductive shielding material, the nominal thickness of described insulated type polyvinyl chloride oversheath is 6.0mm, ultra-smooth semiconductive shielding layer and the crosslinked polyetylene insulated bed boundary of ultrapurification are greater than the micropore of 0.02mm without aperture, ultra-smooth semiconductive shielding layer and the crosslinked polyetylene insulated bed boundary of ultrapurification are without the projection being greater than 0.05mm.
See accompanying drawing 2 embodiment, described conductor thread core 1 is connected with 5 tile-type conductor stock block 1-2 for round conductor stock block 1-1 periphery bag, and embeddingly between milliken conductor stock block is connected with wrinkle ply of paper 12.
Claims (4)
1. the novel power cable with cross-linked polyethylene insulation of a rated voltage 750kV, it is provided with conductor thread core, ultra-smooth semiconductive shielding layer, the crosslinked polyetylene insulated layer of ultrapurification, semi-conductive buffer water-blocking band, corrugated metallic sheath, cable asphalt layer, insulated type polyvinyl chloride oversheath, graphite linings, it is characterized in that, also be provided with copper wire fiber shuffling layer of cloth, semiconductive nylon tape, ultra-smooth semiconductive shielding layer comprises internal layer ultra-smooth semiconductive shielding layer and outer ultra-smooth semiconductive shielding layer, internal layer ultra-smooth semiconductive shielding layer is coated on the outside that inner bag is connected with the semiconductive nylon tape of conductor thread core, the crosslinked polyetylene insulated layer of external sheath ultrapurification of internal layer ultra-smooth semiconductive shielding layer, the outside coated outer ultra-smooth semiconductive shielding layer of the crosslinked polyetylene insulated layer of ultrapurification, the outside bag of outer ultra-smooth semiconductive shielding layer connects semi-conductive buffer water-blocking band, the outside ladle cover of semi-conductive buffer water-blocking band has copper wire fiber shuffling layer of cloth, copper wire fiber shuffling layer of cloth outside bag connects corrugated metallic sheath, corrugated metallic sheath outside is coated with cable asphalt layer successively, insulated type polyvinyl chloride oversheath, the outer surface of insulated type polyvinyl chloride oversheath has graphite linings.
2. the novel power cable with cross-linked polyethylene insulation of rated voltage 750kV according to claim 1, is characterized in that, conductor thread core is that round conductor stock block periphery bag connects tile-type conductor stock block, and embeddingly between milliken conductor stock block is connected with wrinkle ply of paper.
3. the novel power cable with cross-linked polyethylene insulation of rated voltage 750kV according to claim 1, is characterized in that, corrugated metallic sheath be corrugated aluminum sheath, wrinkle copper sheath, wrinkle stainless steel sheath any one.
4. the novel power cable with cross-linked polyethylene insulation of rated voltage 750kV according to claim 1, is characterized in that, the nominal thickness of insulated type polyvinyl chloride oversheath is 6.0mm; Ultra-smooth semiconductive shielding layer and the crosslinked polyetylene insulated bed boundary of ultrapurification are greater than the micropore of 0.02mm without aperture; Ultra-smooth semiconductive shielding layer and the crosslinked polyetylene insulated bed boundary of ultrapurification are without the projection being greater than 0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724913.3U CN204257268U (en) | 2014-11-27 | 2014-11-27 | The novel power cable with cross-linked polyethylene insulation of rated voltage 750kV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724913.3U CN204257268U (en) | 2014-11-27 | 2014-11-27 | The novel power cable with cross-linked polyethylene insulation of rated voltage 750kV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204257268U true CN204257268U (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420724913.3U Expired - Fee Related CN204257268U (en) | 2014-11-27 | 2014-11-27 | The novel power cable with cross-linked polyethylene insulation of rated voltage 750kV |
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|---|---|
| CN (1) | CN204257268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409165A (en) * | 2014-11-27 | 2015-03-11 | 河北新宝丰电线电缆有限公司 | Novel cross-linked-polyethylene insulated power cable with nominal voltage of 750kV |
| CN105097116A (en) * | 2015-07-24 | 2015-11-25 | 中国电力科学研究院 | High-transmission capacity power cable |
-
2014
- 2014-11-27 CN CN201420724913.3U patent/CN204257268U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409165A (en) * | 2014-11-27 | 2015-03-11 | 河北新宝丰电线电缆有限公司 | Novel cross-linked-polyethylene insulated power cable with nominal voltage of 750kV |
| CN104409165B (en) * | 2014-11-27 | 2017-01-11 | 河北新宝丰电线电缆有限公司 | Novel cross-linked-polyethylene insulated power cable with nominal voltage of 750kV |
| CN105097116A (en) * | 2015-07-24 | 2015-11-25 | 中国电力科学研究院 | High-transmission capacity power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20161127 |