CN220041428U - Tensile full-water-blocking cable - Google Patents
Tensile full-water-blocking cable Download PDFInfo
- Publication number
- CN220041428U CN220041428U CN202321127314.9U CN202321127314U CN220041428U CN 220041428 U CN220041428 U CN 220041428U CN 202321127314 U CN202321127314 U CN 202321127314U CN 220041428 U CN220041428 U CN 220041428U
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- CN
- China
- Prior art keywords
- water
- cable
- blocking tape
- tape
- sided
- Prior art date
- 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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- 239000002131 composite material Substances 0.000 claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 12
- 239000004033 plastic Substances 0.000 claims abstract description 12
- 239000004698 Polyethylene Substances 0.000 claims abstract description 10
- -1 polyethylene Polymers 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 7
- 239000004917 carbon fiber Substances 0.000 claims abstract description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 230000000903 blocking effect Effects 0.000 claims description 26
- 230000017105 transposition Effects 0.000 claims description 2
- 230000037303 wrinkles Effects 0.000 claims 2
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 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
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a tensile full-water-blocking cable, which comprises a plurality of core wires, wherein the core wires comprise wires, a semi-conductive water-blocking tape is wrapped outside the wires, an inner shielding layer, an insulating layer and an outer shielding layer are sequentially wrapped outside the semi-conductive water-blocking tape, a first semi-conductive buffer water-blocking tape and a copper tape are wrapped outside the outer shielding layer, the plurality of core wires are twisted into a bundle to form a cable core, a carbon fiber composite core rod is arranged in the middle of the cable core, the cable core is wrapped outside the cable core, a first double-sided water-blocking tape is longitudinally wrapped outside the first double-sided water-blocking tape, a double-sided aluminum-plastic composite tape is longitudinally wrapped outside the double-sided aluminum-plastic composite tape, a polyethylene sheath is wrapped outside the polyethylene sheath, a second semi-conductive buffer water-blocking tape is longitudinally wrapped outside the second semi-conductive buffer water-blocking tape, and an outer sheath is wrapped outside the second double-sided water-blocking tape. The waterproof performance of the cable is optimized, and the cable has tensile strength and compressive strength by adopting the carbon fiber composite core rod and the corrugated aluminum sheath.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a tensile full-water-blocking cable.
Background
With the rapid development of national economy in China, especially the construction and transformation of urban and rural power grids and the sustainable development of the house and land industry in various places, the electric power industry in China is rapidly developed, especially the development of the electric wire and cable industry, and the variety development of electric wires and cables shows a diversified trend.
Such as flame retardant cables, fire resistant cables, low halogen low smoke cables, halogen free low smoke cables, and the like. In recent years, cables laid in severe environments and humid environments have more stringent requirements on the water resistance of the cables, especially in areas with high groundwater levels or perennial rainy days. Most of the power cables are directly buried, at this time, the cables are corroded by water in the soil and acid-base substances in the soil, and when the cables are laid in the south or coast of rainy seasons, the conditions of water immersion and acid-base corrosion are more serious;
with the large-scale application of crosslinked cables in China, the accidents of insulation aging and cable breakdown caused by the invasion of ambient environment moisture into the cable are increased year by year, and more users are urgent to need cables with good water blocking performance so as to further improve the safety and reliability of a power system. And the damage degree can be reduced when moisture invasion occurs, so that the cost is reduced for replacing the cable, and the designed water-blocking power cable has a good water-blocking structure and a better water-blocking method, so that the water-blocking performance of the cable is improved to be one direction of the cable design.
Another possibility is that the cable sheath is damaged by mechanical force applied accidentally during storage, handling, laying and operation of the cable, water invades from the damaged part and diffuses to the two ends of the cable, resulting in a decrease in electrical performance of the cable. When the cable is installed in a wet environment, if the cable does not have a good water blocking structure, the cable is more easily invaded by moisture, so that insulation is damaged, the service life of the cable is greatly shortened, and the cable laid in the wet environment is generally required to have the water blocking structure in order to reduce the influence of the moisture in the environment on various performances of the cable and the damage of the cable.
The laying mode and the environment of the power cable mainly comprise direct burying, a cable pit, a tunnel, a vertical shaft, a calandria, a hanging bracket and a bridge; when the power cable is laid in a direct buried mode, the cable is immersed in water in the soil and corroded by acid and alkali substances in the soil, and when the cable is laid in the south or coast of rainy seasons, the water immersion and acid and alkali corrosion are more serious.
The waterproof cable structure mainly comprises a conductor, an insulation, a longitudinally-wrapped aluminum-plastic composite belt, an inner sheath, an armor and an outer sheath, and is single in waterproof structure and unsatisfactory in water blocking effect.
Disclosure of Invention
Aiming at the technical problems existing at present, the utility model provides a tensile full-waterproof cable, which aims to solve the problems in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model provides a tensile all-water-blocking cable, includes a plurality of heart yearns, this heart yearn includes the wire, and this wire is outward to be wrapped with the semiconductive water-blocking tape, semiconductive water-blocking tape is outward crowded the package in proper order in the interior shielding layer, insulating layer and outer shielding layer outward the outer shielding layer is outward to be wrapped with first semiconductive water-blocking tape and copper strips, a plurality of heart yearns transposition bunches form the cable core, and carbon fiber composite core stick is established at the middle part of this cable core, the cable core is outward to be wrapped with first two-sided water-blocking tape, first two-sided water-blocking tape is indulged to be wrapped with two-sided plastic-aluminum composite tape, two-sided plastic composite tape is outward crowded to be wrapped with the polyethylene sheath, the polyethylene sheath is outward to be wrapped with second semiconductive water-blocking tape, second semiconductive water-blocking tape is outward to be longitudinally wrapped with wrinkled aluminum sheath, second two-sided water-blocking tape is outward to be crowded to be wrapped with the outer sheath.
Preferably, a water blocking rope is filled in a gap between the cable core and the first double-sided water blocking tape.
Preferably, the number of the core wires is three.
Preferably, the thickness of the first semiconducting buffer water-blocking tape is 2.0mm.
Preferably, the thickness of the double-sided aluminum-plastic composite belt is 0.25mm.
Preferably, the thickness of the second semiconducting buffer water-blocking tape is 2.0mm.
Compared with the prior art, the utility model has the beneficial effects that: the utility model effectively solves the requirement of the cable on the waterproof performance, and the utility model adopts the carbon fiber composite core rod, which has high tensile strength, light weight and good flexibility, and the corrugated aluminum sheath ensures that the cable has both tensile strength and compressive strength.
Description of the drawings:
fig. 1 is a schematic structural view of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to test examples and specific embodiments. It should not be construed that the scope of the above subject matter of the present utility model is limited to the following embodiments, and all techniques realized based on the present utility model are within the scope of the present utility model.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.
A tensile full-water-blocking cable shown in figure 1 comprises a plurality of core wires, wherein the number of the core wires is three in the embodiment. The core wire comprises a wire 1, wherein the wire adopts any wire which meets the requirements of national standards GB/T12706 and GB/T3956 simultaneously, a semiconductive water-resistant belt 2 is wrapped outside the wire 1, an inner shielding layer 3, an insulating layer 4 and an outer shielding layer 5 are sequentially extruded outside the semiconductive water-resistant belt 2 from inside to outside, the insulating layer 4 is made of crosslinked polyethylene materials, color separation can be carried out by adopting color bands in an insulating color separation mode, a first semiconductive buffer water-resistant belt 6 and a copper belt 7 are wrapped outside the outer shielding layer 5, and the thickness of the first semiconductive buffer water-resistant belt 6 is 2.0mm. The three core wires are stranded into a bundle to form a cable core, a carbon fiber composite core rod is arranged in the middle of the cable core, a first double-sided water blocking tape 10 is wrapped outside the cable core, and a water blocking rope 8 is filled in a gap between the cable core and the first double-sided water blocking tape 10. The first double-sided water blocking tape 10 is longitudinally wrapped with a double-sided aluminum-plastic composite tape 11, and the thickness of the double-sided aluminum-plastic composite tape 11 is 0.25mm. The double-sided aluminum-plastic composite belt 11 is externally extruded with a polyethylene sheath 12, the polyethylene sheath 12 is made of linear low-density polyethylene material, a second semiconductive buffer water-blocking belt 13 is externally wrapped with the polyethylene sheath 12, and the thickness of the second semiconductive buffer water-blocking belt 13 is 2.0mm. The second semiconducting buffer water-blocking tape 13 is longitudinally covered with a corrugated aluminum sheath 14, the corrugated aluminum sheath 14 is wrapped with a second double-sided water-blocking tape 15, and the second double-sided water-blocking tape 15 is wrapped with an outer sheath 16 in an extrusion mode.
The scheme has the function of longitudinally blocking water by wrapping the water blocking tapes outside the lead, the insulating layer, the copper tape and the inner sheath respectively. The longitudinal water resistance is further enhanced by adopting a double-sided aluminum-plastic composite belt, a polyethylene sheath and a corrugated aluminum sheath. A carbon fiber composite core rod is inserted among the three insulating core wires to enhance the tensile capacity of the cable.
The foregoing describes preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (6)
1. The utility model provides a full water-blocking cable of tensile which characterized in that: including a plurality of heart yearns, this heart yearn includes wire (1), and this wire (1) is around wrapping up with semiconductive water blocking tape (2) outward, semiconductive water blocking tape (2) are from interior crowded package in proper order outward has interior shielding layer (3), insulating layer (4) and outer shielding layer (5) is around wrapping up with first semiconductive buffer water blocking tape (6) and copper strips (7), a plurality of the heart yearn transposition is bundled and is constituted the cable core, and carbon fiber composite core stick is established at this cable core middle part, the cable core is around wrapping up with first two-sided water blocking tape (10), first two-sided water blocking tape (10) are indulged and are had two-sided plastic composite tape (11), two-sided plastic composite tape (11) are crowded to be wrapped up with polyethylene sheath (12) outward, polyethylene sheath (12) are wrapped up with second semiconductive buffer water blocking tape (13) outward, second semiconductive buffer water blocking tape (13) are indulged to wrap up with wrinkle aluminum sheath (14) outward, wrinkle aluminum sheath (14) are wrapped up with second two-sided water blocking tape (15), two-sided water blocking tape (15) are crowded to have outer water blocking tape (16) to crowd out.
2. The tensile all-water-resistant cable of claim 1, wherein: a water blocking rope (8) is filled in a gap between the cable core and the first double-sided water blocking belt (10).
3. The tensile all-water-resistant cable of claim 1, wherein: the number of the core wires is three.
4. The tensile all-water-resistant cable of claim 1, wherein: the thickness of the first semi-conductive buffer water blocking tape (6) is 2.0mm.
5. The tensile all-waterproof cable of claim 4, wherein: the thickness of the double-sided aluminum-plastic composite belt (11) is 0.25mm.
6. The tensile all-waterproof cable of claim 5, wherein: the thickness of the second semi-conductive buffer water blocking tape (13) is 2.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321127314.9U CN220041428U (en) | 2023-05-10 | 2023-05-10 | Tensile full-water-blocking cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321127314.9U CN220041428U (en) | 2023-05-10 | 2023-05-10 | Tensile full-water-blocking cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220041428U true CN220041428U (en) | 2023-11-17 |
Family
ID=88733672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321127314.9U Active CN220041428U (en) | 2023-05-10 | 2023-05-10 | Tensile full-water-blocking cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220041428U (en) |
-
2023
- 2023-05-10 CN CN202321127314.9U patent/CN220041428U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |