CN103943266A - High-voltage power cable with insulated outlet formed through aluminum core split conductor in extruded mode - Google Patents
High-voltage power cable with insulated outlet formed through aluminum core split conductor in extruded mode Download PDFInfo
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- CN103943266A CN103943266A CN201410134145.0A CN201410134145A CN103943266A CN 103943266 A CN103943266 A CN 103943266A CN 201410134145 A CN201410134145 A CN 201410134145A CN 103943266 A CN103943266 A CN 103943266A
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Abstract
The invention discloses a high-voltage power cable with an insulated outlet formed through an aluminum core split conductor in an extruded mode. The cable sequentially includes the split conductor, a conductor shielding layer, an insulated layer, an insulated shielding layer, a semi-conductive buffering layer, a metal sheath, an outer sheath and a semi-conductive layer from the inner layer to the outer layer. The split conductor is a round conductor formed by twining five fan-shaped aluminum blocks, separated crinkled paper is arranged among the fan-shaped aluminum blocks, and the outer layer of the split conductor is wound with three layers of semi-conductive wrapping tapes. By means of the mode, the skin effect can be reduced when the cable operates, transverse and longitudinal comprehensive water resistance between the conductor and the cable is achieved, energy is saved, and energy consumption is reduced.
Description
Technical field
The present invention relates to power cable field, particularly relate to a kind of aluminum core segmental conductor and extrude insulation outlet high voltage power cable.
Background technology
Kelvin effect is that while having alternating current or alternating electromagnetic field in conductor, the CURRENT DISTRIBUTION of conductor inside is inhomogeneous, and electric current concentrates on a kind of phenomenon of " skin " part of conductor.Wire inside in fact electric current diminishes, and electric current concentrates on the thin layer of wire appearance, and the resistance of result wire increases, and its loss power is also increased.Existing circular compact conductor can produce more serious kelvin effect when conductor diameter becomes large.
At present, in domestic electric power system for being more than or equal to 800mm
2conductor recommend adoption milliken conductor, increase the cross-section of cable and reduce kelvin effect, thus the transmission that increases larger electric energy.Along with the develop rapidly that China electric power network is built, power cable need to be with a large amount of copper materials, and that China is copper resource is relatively deficient, and energy scarcity, is unfavorable for developing.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of aluminum core segmental conductor and extrudes insulation outlet high voltage power cable, and the kelvin effect in the time of can reducing cable operation, realizes the transverse and longitudinal integrated water stop between conductor and cable, and energy savings reduces energy consumption.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of aluminum core segmental conductor to extrude insulation outlet high voltage power cable, its internal layer to skin comprises successively: milliken conductor, conductor shield, insulating barrier, insulation screen, semi-conductive buffer layer, metallic sheath, oversheath and semi-conductive layer, described milliken conductor is by five stranded round conductors that form of fan-shaped aluminium thigh piece, and the crimped paper that is provided with separation between each fan-shaped aluminium thigh piece, the skin of described milliken conductor is surrounded with three layers of semiconductive band.
In a preferred embodiment of the present invention, the thickness of described crimped paper is 0.8mm, the kelvin effect while moving for reducing cable.
In a preferred embodiment of the present invention, described semiconductive band is semiconductive nylon tape, and its thickness is 0.14mm, makes the surface of milliken conductor form a smooth rounding face.
In a preferred embodiment of the present invention, the circularity of described milliken conductor is more than 99%.
In a preferred embodiment of the present invention, the semi-conductive buffer water-blocking band that described semi-conductive buffer layer is 2.0mm by two layers of thickness forms.
In a preferred embodiment of the present invention, described metallic sheath is a kind of in smooth aluminum cover, corrugated aluminium sheath or aluminium cover, match with described semi-conductive buffer layer, and for realizing radial water-resisting, mechanical protection and load-bearing cable failed shorted electric current.
In a preferred embodiment of the present invention, the material of described oversheath is high density polyethylene (HDPE) or polyvinyl chloride.
In a preferred embodiment of the present invention, between described metallic sheath and described oversheath, be coated with one deck anti-corrosion asphalt, play the effect of double layer anticorrosive.
The invention has the beneficial effects as follows: the present invention, by adopting aluminum core segmental conductor technology, is meeting under the prerequisite of stranded conductor resistance, obtains the high-tension cable of heavy in section milliken conductor; Metallic sheath adopts smooth aluminum cover or corrugated aluminum sheath or plumbous cover, coordinates semi-conductive buffer layer to realize longitudinal water-blocking, can reduce finished product external diameter, thereby in limited dish tool space, longer core is housed simultaneously, meets the requirement of the single whole length of product; Oversheath adopts high density polyethylene (HDPE) or polyvinyl chloride, with semi-conductive layer co-extrusion, has met the requirement of high pressure and environmental protection.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of aluminum core segmental conductor of the present invention is extruded one preferred embodiment of insulation outlet high voltage power cable;
Fig. 2 is the cutaway view that a kind of aluminum core segmental conductor shown in Fig. 1 is extruded insulation outlet high voltage power cable;
In accompanying drawing, the mark of each parts is as follows: 1, milliken conductor, 2, conductor shield, 3, insulating barrier, 4, insulation screen, 5, semi-conductive buffer layer, 6, metallic sheath, 7, oversheath, 8, semi-conductive layer, 9, crimped paper, 10, semiconductive band.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Refer to Fig. 1 and Fig. 2, the embodiment of the present invention comprises:
A kind of aluminum core segmental conductor is extruded insulation outlet high voltage power cable, its internal layer to skin comprises successively: milliken conductor 1, wrapped at the outer field three layers of semiconductive band 10 of described milliken conductor 1, be coated on the conductor shield 2 of described semiconductive band 10 outer surfaces, be coated on the insulating barrier 3 of described conductor shield 2 outer surfaces, be coated on the insulation screen 4 of described insulating barrier 3 outer surfaces, the wrapped semi-conductive buffer layer 5 at described insulation screen 4 outer surfaces, be coated on the metallic sheath 6 of described semi-conductive buffer layer 5 outer surface, be extruded in the oversheath 7 of described metallic sheath 6 outer surfaces, and with described oversheath 7, jointly extrude be positioned at the outer field semi-conductive layer 8 of oversheath 7,
Wherein, described milliken conductor 1 is to adopt high accuracy cabling machine by five stranded round conductors that form of fan-shaped aluminium thigh piece, and its circularity is more than 99%, and described fan-shaped aluminium thigh piece is to be formed by annealed aluminium monofilament strand system, and the tensile strength of aluminium monofilament is at 120-150N/mm
2between, the percentage elongation of aluminium monofilament is 8%-15%, and between each fan-shaped aluminium thigh piece, is provided with the crimped paper 9 of separation, the thickness of described crimped paper 9 is 0.8mm, the kelvin effect while moving for reducing cable;
Described semiconductive band 10 is semiconductive nylon tape, and its thickness is 0.14mm, makes the surface of milliken conductor 1 form a smooth rounding face;
Described in employing vertical cross-linked production line general, state conductor shield 2, insulating barrier 3 and insulation screen 4 and be made by co-extrusion to insulated wire cores, the roundness of described insulated wire cores reaches more than 99.8%, eccentricity is lower than 5%, avoided not rounding of the insulated wire cores that causes because of Action of Gravity Field, the problem that the degree of eccentricity is bigger than normal;
The semi-conductive buffer water-blocking band that described semi-conductive buffer layer 5 is 2.0mm by overlapping wrapped two layers of thickness forms, described metallic sheath 6 is a kind of in smooth aluminum cover, corrugated aluminium sheath or plumbous cover, match with described semi-conductive buffer layer 5, be used for realizing radial water-resisting, mechanical protection and load-bearing cable failed shorted electric current;
The material of described oversheath 7 is high density polyethylene (HDPE) or polyvinyl chloride, when oversheath 7 is extruded, first the outer surface at metallic sheath 6 evenly applies one deck anti-corrosion asphalt, play antisepsis, and described oversheath 7 is extruded with described semi-conductive layer 8 simultaneously, has met the requirement of high pressure and environmental protection.
Conductor of the present invention for copper, can change the present situation of internal copper scarcity of resources with aluminium, the object that reach energy savings, cuts the waste.
The present invention has disclosed a kind of aluminum core segmental conductor and has extruded insulation outlet high voltage power cable, by adopting aluminum core segmental conductor technology, is meeting under the prerequisite of stranded conductor resistance, obtains the high-tension cable of heavy in section milliken conductor; Metallic sheath adopts smooth aluminum cover or corrugated aluminum sheath or plumbous cover, coordinates semi-conductive buffer layer to realize longitudinal water-blocking, can reduce finished product external diameter, thereby in limited dish tool space, longer core is housed simultaneously, meets the requirement of the single whole length of product; Oversheath adopts high density polyethylene (HDPE) or polyvinyl chloride, with semi-conductive layer co-extrusion, has met the requirement of high pressure and environmental protection.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. an aluminum core segmental conductor is extruded insulation outlet high voltage power cable, its internal layer to skin comprises successively: milliken conductor, conductor shield, insulating barrier, insulation screen, semi-conductive buffer layer, metallic sheath, oversheath and semi-conductive layer, it is characterized in that, described milliken conductor is by five stranded round conductors that form of fan-shaped aluminium thigh piece, and the crimped paper that is provided with separation between each fan-shaped aluminium thigh piece, the skin of described milliken conductor is surrounded with three layers of semiconductive band.
2. aluminum core segmental conductor according to claim 1 is extruded insulation outlet high voltage power cable, it is characterized in that, the thickness of described crimped paper is 0.8mm.
3. aluminum core segmental conductor according to claim 1 is extruded insulation outlet high voltage power cable, it is characterized in that, described semiconductive band is semiconductive nylon tape, and its thickness is 0.14mm.
4. aluminum core segmental conductor according to claim 1 is extruded insulation outlet high voltage power cable, it is characterized in that, the circularity of described milliken conductor is more than 99%.
5. aluminum core segmental conductor according to claim 1 is extruded insulation outlet high voltage power cable, it is characterized in that, the semi-conductive buffer water-blocking band that described semi-conductive buffer layer is 2.0mm by two layers of thickness forms.
6. aluminum core segmental conductor according to claim 1 is extruded insulation outlet high voltage power cable, it is characterized in that, described metallic sheath is a kind of in smooth aluminum cover, corrugated aluminium sheath or aluminium cover.
7. aluminum core segmental conductor according to claim 1 is extruded insulation outlet high voltage power cable, it is characterized in that, the material of described oversheath is high density polyethylene (HDPE) or polyvinyl chloride.
8. aluminum core segmental conductor according to claim 1 is extruded insulation outlet high voltage power cable, it is characterized in that, between described metallic sheath and described oversheath, is coated with one deck anti-corrosion asphalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134145.0A CN103943266A (en) | 2014-04-04 | 2014-04-04 | High-voltage power cable with insulated outlet formed through aluminum core split conductor in extruded mode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410134145.0A CN103943266A (en) | 2014-04-04 | 2014-04-04 | High-voltage power cable with insulated outlet formed through aluminum core split conductor in extruded mode |
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| CN103943266A true CN103943266A (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410134145.0A Pending CN103943266A (en) | 2014-04-04 | 2014-04-04 | High-voltage power cable with insulated outlet formed through aluminum core split conductor in extruded mode |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782795A (en) * | 2016-12-31 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of 0.6/1 kV shallow seas easily peelable optical fiber composite cable of waterproof tensile |
| CN106782865A (en) * | 2016-12-31 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of 0.6/1 kV shallow seas waterproof tensile optical fiber composite cable |
| CN109727714A (en) * | 2018-12-17 | 2019-05-07 | 山东科虹线缆科技有限公司 | Crosslinked polyetylene insulated corrugated aluminium sheath armored high-voltage cable and preparation method thereof |
| CN110473668A (en) * | 2018-05-09 | 2019-11-19 | 江苏宝安电缆有限公司 | A kind of heat dissipation high-tension cable certainly |
| CN113948250A (en) * | 2021-12-16 | 2022-01-18 | 尚纬股份有限公司 | Ultrahigh-voltage cable and auxiliary equipment for production thereof |
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| US4207427A (en) * | 1977-03-16 | 1980-06-10 | Industrie Pirelli S.P.A. | Electrical power cable with stranded insulated wires |
| CN1428792A (en) * | 2001-12-26 | 2003-07-09 | 山东鲁能泰山电缆股份有限公司 | 500KV ultra-high voltage cross-linking cable and its production process |
| CN102881377A (en) * | 2012-10-23 | 2013-01-16 | 江苏中辰电缆有限公司 | Large-section milliken-conductor comprehensive water-retaining crosslinking electric cable |
| CN203799741U (en) * | 2014-04-04 | 2014-08-27 | 江苏亨通高压电缆有限公司 | Aluminium-core split conductor extrusion insulation outlet high-voltage power cable |
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2014
- 2014-04-04 CN CN201410134145.0A patent/CN103943266A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4207427A (en) * | 1977-03-16 | 1980-06-10 | Industrie Pirelli S.P.A. | Electrical power cable with stranded insulated wires |
| CN1428792A (en) * | 2001-12-26 | 2003-07-09 | 山东鲁能泰山电缆股份有限公司 | 500KV ultra-high voltage cross-linking cable and its production process |
| CN102881377A (en) * | 2012-10-23 | 2013-01-16 | 江苏中辰电缆有限公司 | Large-section milliken-conductor comprehensive water-retaining crosslinking electric cable |
| CN203799741U (en) * | 2014-04-04 | 2014-08-27 | 江苏亨通高压电缆有限公司 | Aluminium-core split conductor extrusion insulation outlet high-voltage power cable |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782795A (en) * | 2016-12-31 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of 0.6/1 kV shallow seas easily peelable optical fiber composite cable of waterproof tensile |
| CN106782865A (en) * | 2016-12-31 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of 0.6/1 kV shallow seas waterproof tensile optical fiber composite cable |
| CN110473668A (en) * | 2018-05-09 | 2019-11-19 | 江苏宝安电缆有限公司 | A kind of heat dissipation high-tension cable certainly |
| CN109727714A (en) * | 2018-12-17 | 2019-05-07 | 山东科虹线缆科技有限公司 | Crosslinked polyetylene insulated corrugated aluminium sheath armored high-voltage cable and preparation method thereof |
| CN113948250A (en) * | 2021-12-16 | 2022-01-18 | 尚纬股份有限公司 | Ultrahigh-voltage cable and auxiliary equipment for production thereof |
| CN113948250B (en) * | 2021-12-16 | 2022-03-15 | 尚纬股份有限公司 | Ultrahigh-voltage cable and auxiliary equipment for production thereof |
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Application publication date: 20140723 |