CN205069157U - Big high current -carrying capacity high tension cable in cross -section - Google Patents
Big high current -carrying capacity high tension cable in cross -section Download PDFInfo
- Publication number
- CN205069157U CN205069157U CN201520783558.1U CN201520783558U CN205069157U CN 205069157 U CN205069157 U CN 205069157U CN 201520783558 U CN201520783558 U CN 201520783558U CN 205069157 U CN205069157 U CN 205069157U
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- Prior art keywords
- layer
- conductor
- outside
- carrying capacity
- semiconductive
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- 239000004020 conductor Substances 0.000 claims abstract description 74
- 238000009413 insulation Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 14
- 239000004411 aluminium Substances 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- 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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- Insulated Conductors (AREA)
Abstract
The utility model relates to a big high current -carrying capacity high tension cable in cross -section, it includes that the layer -stepping sticiss the type conductor, the layer -stepping sticiss the type conductor and sets up the three -layer at least, adjacent set up respectively outside toward from the lining between two -layer in outside and semiconduction area of semiconduction area, insulating layer the layer -stepping sticiss type conductor outside and is equipped with the conductor semiconductive shielding layer conductor semiconductive shielding layer outside is equipped with the conductor insulation layer conductor insulation layer outside is equipped with insulating semiconductive shielding layer insulating semiconductive shielding layer is outside around the package semiconduction intumescent band that blocks water the semiconduction outside package welding corrugated aluminium sheath of indulging of intumescent band that blocks water. The utility model discloses the electric current is evenly distributed in the conductor structure, increases the effective sectional area of conductor, and the transmission electric current is bigger.
Description
Technical field
The utility model relates to a kind of cable, is specifically related to a kind of heavy in section high-tension cable.
Background technology
Rated voltage 64/110kV and above power cable, be mainly used in transmission system, needs the power that transmission is larger, comparatively speaking, require that the electric current passed through is also larger, so generally adopt large size conductor.Conventional circular stranded conductor, due to the kelvin effect of conductor, electric current has the trend on the surface concentrating on stranded conductor, and the CURRENT DISTRIBUTION in conductor is just uneven, and this has had a strong impact on the current capacity of conductor.
Summary of the invention
Goal of the invention: the purpose of this utility model is to overcome deficiency of the prior art, provides a kind of electric current to be uniformly distributed in conductor structure, increases the net sectional area of conductor, the heavy in section high current-carrying capacity high-tension cable that transmission current is larger.
Technical scheme: in order to solve the problems of the technologies described above, a kind of heavy in section described in the utility model high current-carrying capacity high-tension cable, it comprises layer-stepping compacting pressing conductor, described layer-stepping compacting pressing conductor at least arranges three layers, every layer thickness is identical, between 8-12mm, between adjacent two layers, from inside outwards interior semi-conductive tape is set respectively, insulating barrier and outer semi-conductive tape, conductor semiconductive shielding layer is provided with in described layer-stepping compacting pressing conductor outside, insulating layer of conductor is provided with in described conductor semiconductive shielding layer outside, insulation semiconductive shielding layer is provided with in described insulating layer of conductor outside, to block water intumescent band at the outside wrapped semiconductive of described insulation semiconductive shielding layer, blocking water at described semiconductive, intumescent band outside is vertical wraps welding corrugated aluminium sheath, high polymer oversheath is extruded in described vertical bag welding corrugated aluminium sheath outside, thin layer semi-conductive layer is extruded in described high polymer oversheath outside, described conductor semiconductive shielding layer, semiconductive shielding layer is three-layer co-extruded forms for insulating layer of conductor and insulation.
The Thickness Ratio of described interior semi-conductive tape and outer semi-conductive tape is 1:1, and every layer thickness is 0.05-0.08mm.
Described insulating barrier is crosslinked polyetylene insulated band, and its thickness is 0.10-0.15mm.
The thickness of described conductor semiconductive shielding layer and insulation semiconductive shielding layer is 1.0-1.2mm.
The thickness of described insulating layer of conductor is 15-30mm.
Described semiconductive blocks water the wrapped layer 2-3 of intumescent band, and Duplication >=20%, its thickness is 2mm.
The gap of welding and leaving 0.50mm between corrugated aluminium sheath is wrapped with vertical at the described semiconductive intumescent band that blocks water.
At the anticorrosion thin layer of the described vertical bag welding external coated pitch of corrugated aluminium sheath.
The layering of big section copper conductor is pressed by the utility model, the structure of semi-conductive tape+insulating tape+semi-conductive tape is adopted to separate between every one deck, different according to the number of plies that the cross section of conductor adopts, cross section is larger, the number of plies is more, the in the end outside of one deck conductor, extrudes semiconductive+insulation+semi-conductive layer.The conductor structure that this layering is pressed can effectively reduce the CURRENT DISTRIBUTION inequality that conductor produces due to kelvin effect, and the phenomenon that current capacity declines improves effective usable floor area of cable current conductor, thus improves the current capacity of cable.Insulation adopts ultra-clean crosslinked polyethylene, and to bear high pressure, the outer wrapped semiconductor waterstop of insulation semiconductive shielding layer, then vertical bag welding corrugated aluminum sheath, then extrudes the high polymer sheath with insulation property.This structure of cable has bears high pressure, blocks water, and transmits high current-carrying capacity, the feature of long service life.
Beneficial effect: the utility model compared with prior art, its remarkable advantage is: the utility model overall structure arranges rationally, conductor is divided into multilayer, in each layer, the trend on all oriented surface of electric current, but all in the inside of whole conductor, like this, electric current is uniformly distributed in conductor structure, increase the net sectional area of conductor, make it to transmit larger electric current, greatly improve the circular cross-section high-tension cable phenomenon that electric current is concentrated to conductive surface when transmitting alternating current, semiconductive+insulation+semi-conductive layer is extruded in layer-stepping compacting pressing conductor outside, the conductor structure that this layering is pressed can effectively reduce the CURRENT DISTRIBUTION inequality that conductor produces due to kelvin effect, the phenomenon that current capacity declines, improve effective usable floor area of cable conductor, thus improve the current capacity of cable, thickness is adopted to be the insulating layer of conductor of 15-30mm, to bear high pressure, wrapped layer 2-3 semiconductive is adopted to block water intumescent band, Duplication >=20%, its thickness is 2mm, play and block water and cushion the impact of corrugated aluminum sheath by core during external force, protection insulated wire cores, the utility model long service life, realistic instructions for use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, a kind of heavy in section described in the utility model high current-carrying capacity high-tension cable, it comprises layer-stepping compacting pressing conductor 1, described layer-stepping compacting pressing conductor 1 at least arranges three layers, every layer thickness is identical, between 8-12mm, between adjacent two layers, interior semi-conductive tape 2 is from inside outwards set respectively, insulating barrier 3 and outer semi-conductive tape 4, conductor semiconductive shielding layer 5 is provided with in described layer-stepping compacting pressing conductor 1 outside, insulating layer of conductor 6 is provided with in described conductor semiconductive shielding layer 5 outside, insulation semiconductive shielding layer 7 is provided with in described insulating layer of conductor 6 outside, to block water intumescent band 8 at the outside wrapped semiconductive of described insulation semiconductive shielding layer 7, blocking water at described semiconductive, intumescent band 8 outside is vertical wraps welding corrugated aluminium sheath 9, high polymer oversheath 10 is extruded in described vertical bag welding corrugated aluminium sheath 9 outside, thin layer semi-conductive layer 11 is extruded in described high polymer oversheath 10 outside, described conductor semiconductive shielding layer 5, semiconductive shielding layer 7 is three-layer co-extruded forms for insulating layer of conductor 6 and insulation, the Thickness Ratio of described interior semi-conductive tape 2 and outer semi-conductive tape 4 is 1:1, and every layer thickness is 0.05-0.08mm, described insulating barrier 3 is crosslinked polyetylene insulated band, and its thickness is 0.10-0.15mm, the thickness of described conductor semiconductive shielding layer 5 and insulation semiconductive shielding layer 7 is 1.0-1.2mm, the thickness of described insulating layer of conductor 6 is 15-30mm, described semiconductive blocks water the wrapped layer 2-3 of intumescent band 8, Duplication >=20%, and its thickness is 2mm, the gap of welding and leaving 0.50mm between corrugated aluminium sheath 9 is wrapped with vertical at the described semiconductive intumescent band 8 that blocks water, at the anticorrosion thin layer of the described vertical bag welding external coated pitch of corrugated aluminium sheath 9.The utility model overall structure arranges rationally, conductor is divided into multilayer, in each layer, the trend on all oriented surface of electric current, but all in the inside of whole conductor, like this, electric current is uniformly distributed in conductor structure, increase the net sectional area of conductor, make it to transmit larger electric current, greatly improve the circular cross-section high-tension cable phenomenon that electric current is concentrated to conductive surface when transmitting alternating current, semiconductive+insulation+semi-conductive layer is extruded in layer-stepping compacting pressing conductor outside, the conductor structure that this layering is pressed can effectively reduce the CURRENT DISTRIBUTION inequality that conductor produces due to kelvin effect, the phenomenon that current capacity declines, improve effective usable floor area of cable conductor, thus improve the current capacity of cable, thickness is adopted to be the insulating layer of conductor of 15-30mm, to bear high pressure, wrapped layer 2-3 semiconductive is adopted to block water intumescent band, Duplication >=20%, its thickness is 2mm, play and block water and cushion the impact of corrugated aluminum sheath by core during external force, protection insulated wire cores, the utility model long service life, realistic instructions for use.
The utility model provides a kind of thinking and method; the method and access of this technical scheme of specific implementation is a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art, under the prerequisite not departing from the utility model principle, some improvements and modifications can also be made; these improvements and modifications also should be considered as protection range of the present utility model, and all available prior art of each part not clear and definite in the present embodiment is realized.
Claims (8)
1. a heavy in section high current-carrying capacity high-tension cable, it is characterized in that: it comprises layer-stepping compacting pressing conductor (1), described layer-stepping compacting pressing conductor (1) at least arranges three layers, every layer thickness is identical, between 8-12mm, between adjacent two layers, interior semi-conductive tape (2) is from inside outwards set respectively, insulating barrier (3) and outer semi-conductive tape (4), conductor semiconductive shielding layer (5) is provided with in described layer-stepping compacting pressing conductor (1) outside, insulating layer of conductor (6) is provided with in described conductor semiconductive shielding layer (5) outside, insulation semiconductive shielding layer (7) is provided with in described insulating layer of conductor (6) outside, to block water intumescent band (8) at the outside wrapped semiconductive of described insulation semiconductive shielding layer (7), blocking water at described semiconductive, intumescent band (8) outside is vertical wraps welding corrugated aluminium sheath (9), high polymer oversheath (10) is extruded in described vertical bag welding corrugated aluminium sheath (9) outside, thin layer semi-conductive layer (11) is extruded in described high polymer oversheath (10) outside, described conductor semiconductive shielding layer (5), insulating layer of conductor (6) and insulation semiconductive shielding layer (7) three-layer co-extrudedly form.
2. heavy in section according to claim 1 high current-carrying capacity high-tension cable, is characterized in that: the Thickness Ratio of described interior semi-conductive tape (2) and outer semi-conductive tape (4) is 1:1, and every layer thickness is 0.05-0.08mm.
3. heavy in section according to claim 1 high current-carrying capacity high-tension cable, is characterized in that: described insulating barrier (3) is crosslinked polyetylene insulated band, and its thickness is 0.10-0.15mm.
4. heavy in section according to claim 1 high current-carrying capacity high-tension cable, is characterized in that: the thickness of described conductor semiconductive shielding layer (5) and insulation semiconductive shielding layer (7) is 1.0-1.2mm.
5. heavy in section according to claim 1 high current-carrying capacity high-tension cable, is characterized in that: the thickness of described insulating layer of conductor (6) is 15-30mm.
6. heavy in section according to claim 1 high current-carrying capacity high-tension cable, is characterized in that: described semiconductive blocks water intumescent band (8) wrapped layer 2-3, and Duplication >=20%, its thickness is 2mm.
7. heavy in section according to claim 1 high current-carrying capacity high-tension cable, is characterized in that: wrap the gap of welding and leaving 0.50mm between corrugated aluminium sheath (9) at the described semiconductive intumescent band (8) that blocks water with vertical.
8. heavy in section according to claim 1 high current-carrying capacity high-tension cable, is characterized in that: at the anticorrosion thin layer of described vertical bag welding corrugated aluminium sheath (9) external coated pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520783558.1U CN205069157U (en) | 2015-10-12 | 2015-10-12 | Big high current -carrying capacity high tension cable in cross -section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520783558.1U CN205069157U (en) | 2015-10-12 | 2015-10-12 | Big high current -carrying capacity high tension cable in cross -section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205069157U true CN205069157U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520783558.1U Active CN205069157U (en) | 2015-10-12 | 2015-10-12 | Big high current -carrying capacity high tension cable in cross -section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205069157U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057371A (en) * | 2016-07-07 | 2016-10-26 | 远东电缆有限公司 | Smart energy HCCV ultrahigh-voltage crosslinking polyethylene-insulated power cable and manufacturing method thereof |
| CN106571179A (en) * | 2015-10-12 | 2017-04-19 | 江苏宝安电缆有限公司 | Large cross section high current carrying capacity high voltage cable |
-
2015
- 2015-10-12 CN CN201520783558.1U patent/CN205069157U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571179A (en) * | 2015-10-12 | 2017-04-19 | 江苏宝安电缆有限公司 | Large cross section high current carrying capacity high voltage cable |
| CN106057371A (en) * | 2016-07-07 | 2016-10-26 | 远东电缆有限公司 | Smart energy HCCV ultrahigh-voltage crosslinking polyethylene-insulated power cable and manufacturing method thereof |
| CN106057371B (en) * | 2016-07-07 | 2020-08-28 | 远东电缆有限公司 | HCCV ultrahigh-voltage crosslinked polyethylene insulated power cable for smart energy and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214205 West Side of Chaquan Road, Environmental Science Park, Yixing City, Wuxi City, Jiangsu Province Patentee after: Jiangsu Bao'an Cable Co.,Ltd. Address before: 214205 West Side of Chaquan Road, Environmental Science Park, Yixing City, Wuxi City, Jiangsu Province Patentee before: JIANGSU BAOAN CABLE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |