CN212461230U - Capacity-increasable overhead insulated cable - Google Patents
Capacity-increasable overhead insulated cable Download PDFInfo
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- CN212461230U CN212461230U CN202021374306.0U CN202021374306U CN212461230U CN 212461230 U CN212461230 U CN 212461230U CN 202021374306 U CN202021374306 U CN 202021374306U CN 212461230 U CN212461230 U CN 212461230U
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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
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Abstract
The utility model discloses a capacity-increasing aerial insulated cable, which comprises an insulating layer I, a first single-core cable, a second single-core cable and a third single-core cable, a first single-core cable is arranged in the first insulating layer, a second single-core cable is arranged below the first single-core cable, a third single-core cable is arranged on the right side of the second conductive wire core single-core cable, the first insulating layer, the second insulating layer and the third insulating layer are all made of cross-linked polyethylene insulating materials with the temperature resistant grade reaching 105 ℃, the first conductive wire core, the second conductive wire core and the third conductive wire core are all made of high-conductivity aluminum materials, a support rod is arranged among the first conductive wire core, the second conductive wire core and the third conductive wire core, the outer circumferential surface of the supporting rod is provided with a support, and fillers are arranged among the first conductive wire core, the second conductive wire core, the third conductive wire core and the support. The utility model discloses a simple structure, bearing capacity is high, and transmission of electricity is capacious, has satisfied the requirement of high load.
Description
Technical Field
The utility model relates to an insulated cable technical field specifically is an aerial insulated cable of increase-volume.
Background
With the rapid development of national economy, the demand of electric power in China is in a continuous increasing trend, and particularly, the electric power load in the eastern region is continuously increased, so that the receiving end of the urban distribution network bears larger load. Because of the increasing shortage of line corridor resources and the increasing of corridor floor pressure, it is more and more difficult to build a new transmission line in a city, and the load channel often has a 'neck-sticking' phenomenon under the influence of the limiting factors of the transmission line corridor and the like, so that the load can not be effectively sent to a receiving end. In order to solve the contradiction between the increasing electric load and the difficulty in cable line construction, the research direction can only be shifted from the expansion of the power grid to the potential excavation of the existing network and the improvement of the transmission capacity of the existing power transmission network.
However, the existing overhead insulated cable has insufficient bearing capacity and small transmission capacity, and cannot meet the requirement of high load. Accordingly, a scalable overhead insulated cable is proposed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a but aerial insulated cable of increase capacity to solve the problem in the above-mentioned technical background. In order to achieve the above object, the utility model provides a following technical scheme: an overhead insulated cable capable of realizing capacity expansion comprises an insulating layer I, wherein a wear-resistant layer tightly attached to the insulating layer I is arranged on the outer circumferential surface of the insulating layer I, a first single-core cable is arranged inside the wear-resistant layer, a first water-resistant layer is arranged inside the first single-core cable, a first insulating layer is arranged on the inner circumferential surface of the first water-resistant layer, a first heat-absorbing layer is arranged on the inner circumferential surface of the first insulating layer, a first conductive wire core I is concentrically arranged inside the first heat-absorbing layer, a first twisted layer is arranged in an annular area between the first conductive wire core I and the first heat-absorbing layer, the first twisted layer is fixedly connected with the first conductive wire core I and the first heat-absorbing layer, a second single-core cable is arranged below the first single-core cable, a second water-resistant layer is arranged inside the second single-core cable, a second insulating layer is arranged on the surface of the second water-resistant layer, and a second heat, a second conductive wire core is concentrically arranged in the second heat absorption layer, a second stranded layer is arranged in an annular region between the second conductive wire core and the second heat absorption layer, the second stranded layer is fixedly connected with the second conductive wire core and the second heat absorption layer, a third single-core cable is arranged on the right side of the second single-core cable, a third water-resistant layer is arranged in the third single-core cable, a third insulating layer is arranged on the inner circumferential surface of the third water-resistant layer, a third heat absorption layer is arranged on the inner circumferential surface of the third insulating layer, a third conductive wire core is concentrically arranged in the third heat absorption layer, a third stranded layer is arranged in an annular region between the third conductive wire core and the third heat absorption layer, the third stranded layer is fixedly connected with the third conductive wire core and the third heat absorption layer, and the first insulating layer, the second insulating layer and the third insulating layer are all made of crosslinked polyethylene insulating materials with the temperature resistance level of 105 ℃, the high-conductivity aluminum-based cable comprises a first conductive wire core, a second conductive wire core and a third conductive wire core, wherein the first conductive wire core, the second conductive wire core and the third conductive wire core are all made of high-conductivity aluminum materials, specifically aluminum ingots of two brands of Al99.90 and Al99.85 are matched and generated according to a certain proportion, the cross section areas of the first conductive wire core, the second conductive wire core and the third conductive wire core are larger than those of the common existing conductive wire cores, a supporting rod is arranged between the first single-core cable, the second single-core cable and the third single-core cable, a first heat absorption layer is arranged on the outer circumferential surface of the supporting rod, a support is arranged on the outer circumferential surface of the first heat absorption layer, the support is of a Y-shaped structure, a second heat absorption layer is wrapped outside the support, and fillers are arranged in cavities formed.
As a further aspect of the present invention: and the outer circumferential surface of the insulating layer is provided with a wear-resistant layer closely attached to the insulating layer.
As a further aspect of the present invention: the filler is specifically a fiber paste.
As a further aspect of the present invention: the cable is characterized in that a first water-resistant layer is arranged inside the first single-core cable, a second water-resistant layer is arranged inside the second single-core cable, and a third water-resistant layer is arranged inside the third single-core cable.
As a further aspect of the present invention: the support is of a Y-shaped structure.
As a further aspect of the present invention: the outer circumferential surface of the support rod is provided with a first heat absorption layer, and the outer side of the support is coated with a second heat absorption layer.
As a further aspect of the present invention: the first heat absorbing layer, the second heat absorbing layer, the third heat absorbing layer, the first heat absorbing layer and the second heat absorbing layer are specifically styrene thermoplastic elastomer (SBC) materials.
Has the advantages that:
1. the blending oil heating and mixing device provides a high-conductivity aluminum material, specifically, two aluminum ingots of Al99.90 and Al99.85 are matched and generated according to a certain proportion, the conductivity of a high-conductivity aluminum rod can reach 63% IACS, the conductivity of an aluminum conductor in a common overhead insulated cable is 61% IACS, and the conductor material has good strength retention rate in a long-term working temperature state. The resistivity of the aluminum single wire produced by the high-conductivity aluminum rod can reach 0.02737
Omega mm2/m, the resistivity of the aluminum single wire produced by 61% IACS aluminum rod is about 3% better, which means that the maximum direct current resistance of the conductor at 20 ℃ can be reduced by about 3%, the bearing capacity of the cable is improved, and the transmission capacity is well increased.
2. The blend oil heating and mixing device provides a heat absorption layer, the heat absorption layer is specifically a first heat absorption layer, a second heat absorption layer, a third heat absorption layer, a first heat absorption layer and a second heat absorption layer, the materials are specifically styrene thermoplastic elastomer (SBC) materials, resin and rubber are used as matrixes, a composite material added with a halogen-free flame retardant contains a large amount of organic compounds, and the blend oil heating and mixing device has multiple functions such as heat absorption, covering, chain reaction inhibition, non-combustible gas suffocation and the like, and is good in heat absorption effect, so that the working temperature is reduced, and the power transmission capacity and the bearing capacity of a cable are improved.
Drawings
FIG. 1 is a cross-sectional structural view of the present invention;
FIG. 2 is a detailed structure diagram of the filler of the present invention;
fig. 3 is a schematic structural diagram of a single core cable in the present invention;
FIG. 4 is a three-dimensional structure diagram of the support rod of the present invention;
in the figure: 1. the cable comprises a first single-core cable 101, a first water-resistant layer 102, a first insulating layer 103, a first heat-absorbing layer 104, a first stranded layer 105, a conductive wire core I2, a second single-core cable 201, a second water-resistant layer 202, a second insulating layer 203, a second heat-absorbing layer 204, a second stranded layer 205, a conductive wire core II 3, a third single-core cable 301, a third water-resistant layer 302, a third insulating layer 303, a third heat-absorbing layer 304, a third stranded layer 305, a conductive wire core III 4, a filler 5, a wear-resistant layer 6, a support 7, an insulating layer I8, a support rod 9, a heat-absorbing layer I10 and a heat-absorbing layer II.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a following technical scheme: an overhead insulated cable capable of realizing capacity expansion comprises an insulating layer I7, wherein a wear-resistant layer 5 tightly attached to the insulating layer I7 is arranged on the outer circumferential surface of the insulating layer I7, so that ageing resistance and wear resistance of the cable are improved, the service life of the cable is prolonged, a first single-core cable 1 is arranged inside the wear-resistant layer 5, a first water-resistant layer 101 is arranged inside the first single-core cable 1, a first insulating layer 102 is arranged on the inner circumferential surface of the first water-resistant layer 101, a first heat-absorbing layer 103 is arranged on the inner circumferential surface of the first insulating layer 102, a first conductive wire core I105 is concentrically arranged inside the first heat-absorbing layer 103, a first twisted layer 104 is arranged in an annular area between the first conductive wire core I105 and the first heat-absorbing layer 103, the first twisted layer 104 is fixedly connected with the first conductive wire core I105 and the first heat-absorbing layer 103, and a second single-core cable 2 is arranged below the, a second waterproof layer 201 is arranged inside the second single core cable 2, a second insulating layer 202 is arranged on the inner circumferential surface of the second waterproof layer 201, a second heat absorbing layer 203 is arranged on the inner circumferential surface of the second insulating layer 202, a second conductive core 205 is concentrically arranged inside the second heat absorbing layer 203, a second twisting layer 204 is arranged in an annular area between the second conductive core 205 and the second heat absorbing layer 203, the second twisting layer 204 is fixedly connected with the second conductive core 205 and the second heat absorbing layer 203, a third single core cable 3 is arranged on the right side of the second single core cable 2, a third waterproof layer 301 is arranged inside the third single core cable 3, a third insulating layer 302 is arranged on the inner circumferential surface of the third waterproof layer 301, a third heat absorbing layer 303 is arranged on the inner circumferential surface of the third insulating layer 302, a third conductive core 305 is concentrically arranged inside the third insulating layer 303, and a third twisting layer 304 is arranged in an annular area between the third conductive core 305 and the third heat absorbing layer 303, the third stranded layer 304 is fixedly connected with the third conductive wire core 305 and the third heat absorption layer 303, the first insulating layer 102, the second insulating layer 202 and the third insulating layer 302 are all made of cross-linked polyethylene insulating materials with the temperature resistance level of 105 ℃, the first conductive wire core 105, the second conductive wire core 205 and the third conductive wire core 305 are all made of high-conductivity aluminum materials, specifically, aluminum ingots of two brands of Al99.90 and Al99.85 are matched and generated according to a certain proportion, the conductivity of a high-conductivity aluminum rod can reach 63% IACS, the conductivity of an aluminum conductor in a common overhead insulated cable is 61% IACS, and the conductor material has good strength retention rate in a long-term working temperature state. The resistivity of the aluminum single wire produced by the high-conductivity aluminum rod can reach 0.02737 omega mm2/m, which is about 3% better than that of the aluminum single wire produced by a 61% IACS aluminum rod, which means that the maximum direct current resistance at 20 ℃ of the conductor can be reduced by about 3%, the bearing capacity of the cable is improved, and the power transmission capacity is well increased, and the cross section areas of the first conductive wire core 105, the second conductive wire core 205 and the third conductive wire core 305 are larger than those of the common existing conductive wire cores, so that the conductor structure is improved, the conductor resistance is reduced, and the current-carrying capacity is improved, a support rod 8 is arranged between the first single-core cable 1, the second single-core cable 2 and the third single-core cable 3, a first heat absorption layer 9 is arranged on the outer circumferential surface of the support rod 8, a support 6 is arranged on the outer circumferential surface of the first heat absorption layer 9, the support 6 is of a Y-shaped structure, a, the first heat absorbing layer 103, the second heat absorbing layer 203, the third heat absorbing layer 303, the first heat absorbing layer 9 and the second heat absorbing layer 10 are made of styrene thermoplastic elastomer (SBC) materials, the composite material which takes resin and rubber as basal bodies and is added with the halogen-free flame retardant contains a large amount of organic compounds, has various functions such as heat absorption, covering, chain reaction inhibition, non-combustible gas suffocation and the like, and has good heat absorption effect, reduces the working temperature, improves the power transmission capacity and the bearing capacity of the cable, a filler 4 is arranged in a cavity formed in the first insulating layer 7 except for the first single-core cable 1, the second single-core cable 2, the third single-core cable 3 and the bracket 6, the filler 4 is specifically a fiber paste which is a good buffer material, the cable can be prevented from being abraded due to external force, and the cable has stability, so that the service life of the cable is prolonged.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides a but overhead insulated cable of increase-volume, includes insulating layer (7), first single core cable (1), second single core cable (2) and third single core cable (3), its characterized in that: a first single-core cable (1) is arranged inside the first insulating layer (7), a first insulating layer (102) is arranged inside the first single-core cable (1), a first heat absorbing layer (103) is arranged on the inner circumferential surface of the first insulating layer (102), a first conductive wire core (105) is concentrically arranged inside the first heat absorbing layer (103), a first twisted layer (104) is arranged in an annular area between the first conductive wire core (105) and the first heat absorbing layer (103), the first twisted layer (104) and the first conductive wire core (105) are fixedly connected with the first heat absorbing layer (103), a second single-core cable (2) is arranged below the first single-core cable (1), a second insulating layer (202) is arranged inside the second single-core cable (2), a second heat absorbing layer (203) is arranged on the inner circumferential surface of the second insulating layer (202), and a second conductive wire core (205) is concentrically arranged inside the second heat absorbing layer (203), the heat-absorbing cable is characterized in that a second stranded layer (204) is arranged in an annular region between the second conductive wire core (205) and the second heat-absorbing layer (203), the second stranded layer (204) is fixedly connected with the second conductive wire core (205) and the second heat-absorbing layer (203), a third single-core cable (3) is arranged on the right side of the second single-core cable (2), a third insulating layer (302) is arranged inside the third single-core cable (3), a third heat-absorbing layer (303) is arranged on the inner circumferential surface of the third insulating layer (302), a third conductive wire core (305) is concentrically arranged inside the third heat-absorbing layer (303), a third stranded layer (304) is arranged in an annular region between the third conductive wire core (305) and the third heat-absorbing layer (303), the third stranded layer (304) is fixedly connected with the third conductive wire core (305) and the third heat-absorbing layer (303), and the first insulating layer (102), the second insulating layer (202) and the third insulating layer (302) adopt crosslinked polyethylene insulation with the temperature-resistant grade of which reaches 105 DEG C The material, the high-conductivity aluminium material is all adopted in conductive core one (105), conductive core two (205) and conductive core three (305), specifically is that the aluminium ingot of two kinds of trade marks of Al99.90 and Al99.85 cooperates the formation according to a certain proportion, just the cross sectional area of conductive core one (105), conductive core two (205) and conductive core three (305) is greater than general current conductive core, be equipped with bracing piece (8) between first single core cable (1), second single core cable (2) and third single core cable (3), the outer circumferential surface of bracing piece (8) is equipped with support (6), the inside cavity that forms except that first single core cable (1), second single core cable (2), third single core cable (3) and support (6) of insulating layer one (7) is equipped with filler (4).
2. A compatibilizable overhead insulated cable according to claim 1, wherein: and the outer circumferential surface of the first insulating layer (7) is provided with a wear-resistant layer (5) tightly attached to the first insulating layer (7).
3. A compatibilizable overhead insulated cable according to claim 1, wherein: the filler (4) is specifically a fiber paste.
4. A compatibilizable overhead insulated cable according to claim 1, wherein: first single core cable (1) inside is equipped with first water blocking layer (101), second single core cable (2) inside is equipped with second water blocking layer (201), third single core cable (3) inside is equipped with third water blocking layer (301).
5. A compatibilizable overhead insulated cable according to claim 1, wherein: the support (6) is of a Y-shaped structure.
6. A compatibilizable overhead insulated cable according to claim 1, wherein: the outer circumferential surface of the support rod (8) is provided with a first heat absorption layer (9), and the outer side of the support (6) is coated with a second heat absorption layer (10).
7. A compatibilized overhead insulated cable according to claim 6, wherein: the first heat absorbing layer (103), the second heat absorbing layer (203), the third heat absorbing layer (303), the first heat absorbing layer (9) and the second heat absorbing layer (10) are specifically styrene thermoplastic elastomer materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021374306.0U CN212461230U (en) | 2020-07-14 | 2020-07-14 | Capacity-increasable overhead insulated cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021374306.0U CN212461230U (en) | 2020-07-14 | 2020-07-14 | Capacity-increasable overhead insulated cable |
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| Publication Number | Publication Date |
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| CN212461230U true CN212461230U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021374306.0U Active CN212461230U (en) | 2020-07-14 | 2020-07-14 | Capacity-increasable overhead insulated cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114220591A (en) * | 2021-12-28 | 2022-03-22 | 扬州联胜电气有限公司 | Capacity-increasable overhead insulated cable |
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- 2020-07-14 CN CN202021374306.0U patent/CN212461230U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114220591A (en) * | 2021-12-28 | 2022-03-22 | 扬州联胜电气有限公司 | Capacity-increasable overhead insulated cable |
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