CN220252921U - Photoelectric composite overhead cable - Google Patents

Photoelectric composite overhead cable Download PDF

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Publication number
CN220252921U
CN220252921U CN202321915751.7U CN202321915751U CN220252921U CN 220252921 U CN220252921 U CN 220252921U CN 202321915751 U CN202321915751 U CN 202321915751U CN 220252921 U CN220252921 U CN 220252921U
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China
Prior art keywords
supporting framework
layer
cable
conductor
overhead cable
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CN202321915751.7U
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Inventor
曲国辉
刘艮东
陈明
龙海欧
马骞
文海益
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Guizhou Anzhongcheng Wire And Cable Co ltd
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Guizhou Anzhongcheng Wire And Cable Co ltd
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Abstract

The utility model discloses a photoelectric composite overhead cable, which comprises a communication optical cable, a composite wire core, a conductor layer, a supporting framework, a corrugated pipe and an insulating layer, wherein a central hole is formed in the supporting framework, a plurality of concave line grooves are formed in the outer wall of the supporting framework, the communication optical cable is arranged in the central hole in the supporting framework, the composite wire core is arranged in the concave line grooves in the supporting framework, the corrugated pipe is coated on the outer surface of the supporting framework, the conductor layer is spirally stranded on the outer surface of the corrugated pipe, the conductor layer comprises a plurality of metal single wires stranded with each other, and the insulating layer is coated on the surface of the conductor layer. The photoelectric composite overhead cable can realize normal electric energy transmission and communication transmission, and the composite wire core is adopted to replace the existing steel core, so that the weight of the cable can be greatly reduced, the ground clearance of the cable is ensured, the potential safety hazard is reduced, and the cable can be applied to all power transmission and distribution lines with overhead ground wires.

Description

Photoelectric composite overhead cable
Technical Field
The utility model relates to the technical field of power overhead cables, in particular to a photoelectric composite overhead cable.
Background
The overhead cable is a stranded wire composed of single wires or multiple wires which are not mutually insulated through current, and the demand for electric power is rapidly increased along with the rapid development of national economy and the continuous improvement of the living standard of people. Overhead power transmission cables are very important as carriers for power transmission in transmission lines. The overhead cable is mainly erected on the tower and is required to receive additional loads such as wind, snow, ice and the like besides bearing the self gravity. The existing overhead cable is mainly used for power transmission, the adopted conductor is formed by concentrically twisting pure aluminum round wires, and the surface of the twisted monofilaments is deformed, so that the tensile strength of the twisted monofilaments is reduced. The wire core adopted by the overhead cable is generally a steel core formed by one or more stranded galvanized steel wires, the steel core has larger density and weight, and has larger magnetic loss in an alternating current transmission line, and meanwhile, the galvanized steel core also has the problem of lower corrosion resistance. Therefore, in order to reduce the weight of the overhead cable, the structure of the existing overhead cable needs to be improved, in addition, because the linear expansion coefficients and the elastic modes of steel and aluminum are different, in order to exert the comprehensive performance of the cable, the structure or the material performance of the cable needs to be optimized, a gap is arranged between the wire core and the conductor, the existence of the gap is utilized, the stress transfer of the cable is facilitated, and the problem that the cable generates a large radian in the process of erection and operation is avoided.
In addition, with the development of informatization at a high speed, the communication optical cable is a communication mode using optical fibers as a transmission medium, and the communication optical fibers have the requirements of high speed, large capacity and high confidentiality. In order to enhance the competitiveness of enterprises and increase the market share, the overhead cable is different from the overhead cable disclosed in the prior art, and has the advantages of light weight, low cost and good usability.
Disclosure of Invention
The utility model aims at solving the problems in the background technology, thereby providing an overhead cable, by using the overhead cable, the weight of the overhead cable can be reduced, the service life of the overhead cable can be prolonged, and diversified use requirements can be met, in particular to a photoelectric composite overhead cable.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a photoelectric composite aerial cable, includes communication optical cable, compound sinle silk, conductor layer, braced skeleton, bellows and insulating layer offer the centre bore in the braced skeleton, and a plurality of concave type wire casing have been seted up to braced skeleton's outer wall, communication optical cable sets up in the centre bore in the braced skeleton, and compound sinle silk sets up in the concave type wire casing in the braced skeleton, the bellows cladding has the conductor layer in braced skeleton surface at the spiral transposition of bellows surface, the conductor layer includes many metal single lines of intertwisting each other, and the parcel has the insulating layer on the surface of conductor layer.
Further, the photoelectric composite overhead cable is characterized in that a filling layer is further arranged between the supporting framework and the corrugated pipe, the filling layer is located on the outer side of the composite wire core, and the filling layer is made of PP materials.
Further, the optical-electrical composite overhead cable comprises an optical fiber body, a soft sleeve, a steel-plastic composite belt and a nonmetal reinforcing layer, wherein the soft sleeve is coated outside the optical fiber body, the steel-plastic composite belt is coated on the soft sleeve, and the nonmetal reinforcing layer is sprayed on the outer wall of the steel-plastic composite belt.
Further, by adopting the photoelectric composite overhead cable disclosed by the utility model, the composite wire core comprises a core body and a protective layer coated outside the core body, wherein the core body is formed by stranding stranded carbon fiber wires and aramid fiber wires, and the protective layer is a vulcanized rubber material layer.
Further, by adopting the photoelectric composite overhead cable, the conductor layer comprises an inner conductor and an outer conductor, wherein the inner conductor is formed by mutually twisting a plurality of soft aluminum round wires with round cross sections, and the outer conductor is formed by mutually twisting a plurality of soft aluminum molded lines with trapezoidal or Z-shaped cross sections; the spiral twisting directions of the inner layer conductor and the outer layer conductor are opposite.
Further, the photoelectric composite overhead cable is characterized in that the supporting framework is made of a silicon rubber material and is of a cross structure with a central hole and four concave line grooves, wherein the central hole is located at the central position of the supporting framework, the four concave line grooves are uniformly distributed at the outer wall along the circumferential direction of the supporting framework, and a composite wire core is respectively arranged in the four concave line grooves in the supporting framework.
Further, by adopting the photoelectric composite overhead cable, the corrugated pipe is an aluminum alloy hose, and the thickness of the corrugated pipe is 3-5 mm.
Further, by adopting the photoelectric composite overhead cable, the insulating layer is a silicon rubber insulating material layer, and the outer wall of the insulating layer is uniformly coated with the high-temperature-resistant coating.
The photoelectric composite overhead cable provided by the utility model can realize normal electric energy transmission and communication transmission by utilizing the communication optical cable arranged in the supporting framework and the conductor layer positioned on the corrugated pipe, and the composite wire core is adopted to replace the existing steel core, so that the weight of the cable can be greatly reduced, the sag of the cable with the composite wire core at high temperature is smaller, the ground clearance of the cable is ensured, the potential safety hazard is reduced, the cable can be applied to all power transmission and distribution lines with overhead ground wires, the practicability is higher, and the cable has wide application places.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the communication cable according to the present utility model;
fig. 3 is a schematic structural view of the supporting framework according to the present utility model.
The figure shows: 1-communication optical cable, 11-optical fiber body, 12-soft sleeve, 13-steel-plastic composite belt, 14-nonmetal reinforcing layer, 2-composite wire core, 21-core body, 22-protective layer, 3-conductor layer, 31-inner conductor, 32-outer conductor, 4-supporting framework, 41-central hole, 42-concave slot, 5-corrugated pipe, 6-insulating layer and 7-filling layer.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples. The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof. Also, the terms such as "upper", "lower", "left", "right", "middle", etc. are used herein for convenience of description, but are not to be construed as limiting the scope of the utility model, and the relative changes or modifications are not to be construed as essential to the scope of the utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1
As shown in fig. 1 to 3, the photoelectric composite overhead cable according to the embodiment includes a communication optical cable 1, a composite wire core 2, a conductor layer 3, a supporting framework 4, a corrugated pipe 5, an insulating layer 6 and a filling layer 7, wherein a central hole 41 is formed in the supporting framework 4, a plurality of concave wire grooves 42 are formed in the outer wall of the supporting framework 4, the communication optical cable 1 is arranged in the central hole 41 in the supporting framework 4, the composite wire core 2 is arranged in the concave wire grooves 42 in the supporting framework 4, the corrugated pipe 5 is coated on the outer surface of the supporting framework 4, the conductor layer 3 is helically stranded on the outer surface of the corrugated pipe 5, the conductor layer 3 includes a plurality of mutually stranded metal single wires, and the insulating layer 6 is wrapped on the surface of the conductor layer 3; and a filling layer 7 is further arranged between the supporting framework 4 and the corrugated pipe 5, the filling layer 7 is positioned on the outer side of the composite wire core 2, and the filling layer 7 is made of PP material. By using the filling layer 7, not only the composite wire core 2 can be filled, but also the position of the composite wire core 2 can be fixed.
Further, with the photoelectric composite overhead cable according to the embodiment, the communication optical cable 1 includes an optical fiber body 11, a soft sleeve 12, a steel-plastic composite belt 13, and a non-metal reinforcing layer 14, the soft sleeve 12 is coated on the outside of the optical fiber body 11, the steel-plastic composite belt 13 is coated on the soft sleeve 12, and the non-metal reinforcing layer 14 is sprayed on the outer wall of the steel-plastic composite belt 13; the composite wire core 2 comprises a core body 21 and a protective layer 22 coated outside the core body 21, wherein the core body 21 is formed by stranding stranded carbon fiber filaments and aramid fiber filaments, and the protective layer 22 is a vulcanized rubber material layer. Because the core 21 is made of stranded carbon fiber filaments and aramid fiber filaments, after being stranded, the stranded carbon fiber filaments are immersed in resin by the existing method, then are solidified by an oven, and finally are coated with a protective layer 22, and because the protective layer 22 is a vulcanized rubber material layer, the composite material has high elasticity, heat resistance, tensile strength, insolubility in organic solvents and the like. Through the processing of the steps, the structural strength of the core 21 can be effectively increased, and the cable has stronger stretching resistance, so that the sag increment of the cable can be reduced, and meanwhile, the cable also has good mechanical properties.
Further, with the photoelectric composite overhead cable according to the embodiment, the conductor layer 3 includes an inner conductor 31 and an outer conductor 32, the inner conductor 31 is formed by mutually twisting a plurality of soft aluminum round wires with round cross sections, and the outer conductor 32 is formed by mutually twisting a plurality of soft aluminum molded wires with trapezoidal cross sections; and the inner layer conductor 31 and the outer layer conductor 32 are required to be helically twisted in opposite directions. The supporting framework 4 is made of a silicone rubber material and is in a cross structure with a central hole 41 and four concave wire grooves 42, wherein the central hole 41 is positioned at the central position of the supporting framework 4, the four concave wire grooves 42 are uniformly distributed at the outer wall along the circumferential direction of the supporting framework, and a composite wire core 2 is respectively arranged in the four concave wire grooves 42 in the supporting framework 4. The bellows 5 is an aluminum alloy hose, and has a thickness of 3 to 5mm.
Example 2
The structure of the outer conductor 32 is improved on the basis of the embodiment 1, and the outer conductor 32 is formed by mutually twisting a plurality of soft aluminum molded lines with Z-shaped cross sections; meanwhile, the insulating layer 6 is a silicon rubber insulating material layer, and the outer wall of the insulating layer 6 is uniformly coated with high-temperature resistant paint. The outer conductor 32 is formed by mutually twisting soft aluminum molded lines with Z-shaped structures, so that the twisting is tighter, and the surface is smoother, so that the mechanical performance of the outer conductor is enhanced; the insulating layer 6 is formed by extruding a silicon rubber insulating material, the insulating layer 5 has higher insulation and wear resistance through the silicon rubber insulating material, the high-temperature resistant coating is a common material in the prior art, the detailed description is not provided, and the influence of external factors on the cable can be reduced by using the high-temperature resistant coating of the coating.
By adopting the photoelectric composite overhead cable, the insulating layer 6 can play a certain role in protecting the conductor layer 3 on the corrugated pipe 5, so that the heat resistance, wear resistance and insulating performance of the overhead cable are improved, the overhead cable is ensured to be normally used in various environments, and the cable is prevented from being damaged by heating; meanwhile, as the plurality of composite wire cores 2 are arranged on the supporting framework 4 in the corrugated pipe 5, the weight of the overhead cable can be reduced by utilizing the composite wire cores 2, the problem of larger magnetic loss in the alternating current transmission line due to the existence of the steel cores can be avoided, and as the filling layer 7 is arranged at the gap between the wire cores and the conductors, the filling layer 7 can be utilized to fill the composite wire cores 2, the position of the composite wire cores 2 can be fixed, the stress transfer of the cable is facilitated, and the problem of larger radian of the cable in the erection and operation process is avoided. In addition, since the communication optical cable 1 is further arranged at the central hole 41 of the supporting framework 4, the erection engineering cost can be reduced, the construction cost is reduced, and the communication and the cable are fused together, so that the diversified use requirements can be met.
In summary, the photoelectric composite overhead cable provided by the utility model can normally transmit electric energy and can communicate by utilizing the communication optical cable 1 arranged in the supporting framework 4 and the conductor layer 3 arranged on the corrugated pipe 5, and the composite wire core 2 is adopted to replace the existing steel core, so that the weight of the cable can be greatly reduced, meanwhile, the cable is corrosion-resistant, the sag of the cable with the composite wire core 2 at high temperature is smaller, the ground clearance of the cable is ensured, the potential safety hazard is reduced, the cable can be applied to all power transmission and distribution lines with overhead ground wires, the practicability is higher, and the cable has wide application places.
Other aspects of the utility model are not specifically described and are well known to those skilled in the art.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The protection scope of the present utility model is not limited to the technical solutions disclosed in the specific embodiments, but the above description is only a preferred embodiment of the present utility model, and is not limited to the present utility model, and any minor modifications, equivalent substitutions and improvements made according to the technical solutions of the present utility model should be included in the protection scope of the technical solutions of the present utility model.

Claims (8)

1. An optoelectronic composite overhead cable, characterized in that: including communication optical cable (1), compound sinle silk (2), conductor layer (3), supporting framework (4), bellows (5) and insulating layer (6) set up centre bore (41) in supporting framework (4), and a plurality of concave molded line grooves (42) have been seted up to the outer wall of supporting framework (4), communication optical cable (1) set up in centre bore (41) in supporting framework (4), and compound sinle silk (2) set up in concave molded line groove (42) in supporting framework (4), bellows (5) cladding in supporting framework (4) surface, the spiral transposition has conductor layer (3) at bellows (5) surface, conductor layer (3) are including many metal single lines of intertwisting each other, and the parcel has insulating layer (6) on the surface of conductor layer (3).
2. An optoelectronic composite overhead cable according to claim 1, wherein: a filling layer (7) is further arranged between the supporting framework (4) and the corrugated pipe (5), the filling layer (7) is located on the outer side of the composite wire core (2), and the filling layer (7) is made of PP materials.
3. An optoelectronic composite overhead cable according to claim 1, wherein: the communication optical cable (1) comprises an optical fiber body (11), a soft sleeve (12), a steel-plastic composite belt (13) and a nonmetal reinforcing layer (14), wherein the soft sleeve (12) is coated outside the optical fiber body (11), the steel-plastic composite belt (13) is coated on the soft sleeve (12), and the nonmetal reinforcing layer (14) is sprayed on the outer wall of the steel-plastic composite belt (13).
4. An optoelectronic composite overhead cable according to claim 1, wherein: the composite wire core (2) comprises a core body (21) and a protective layer (22) coated outside the core body (21), wherein the core body (21) is formed by stranding stranded carbon fiber filaments and aramid fiber filaments, and the protective layer (22) is a vulcanized rubber material layer.
5. An optoelectronic composite overhead cable according to claim 1, wherein: the conductor layer (3) comprises an inner conductor (31) and an outer conductor (32), the inner conductor (31) is formed by mutually twisting a plurality of soft aluminum round wires with round cross sections, and the outer conductor (32) is formed by mutually twisting a plurality of soft aluminum molded wires with trapezoidal or Z-shaped cross sections; the inner conductor (31) and the outer conductor (32) are twisted in opposite directions.
6. The photoelectric composite overhead cable according to claim 1, wherein the supporting framework (4) is made of a silicone rubber material and is of a cross-shaped structure with a central hole (41) and four concave line grooves (42), the central hole (41) is located at the central position of the supporting framework (4), the four concave line grooves (42) are uniformly distributed at the outer wall along the circumferential direction of the supporting framework, and one composite wire core (2) is arranged in each of the four concave line grooves (42) in the supporting framework (4).
7. An optoelectronic composite overhead cable according to claim 1, wherein: the corrugated pipe (5) is an aluminum alloy hose, and the thickness of the corrugated pipe is 3-5 mm.
8. An optoelectronic composite overhead cable according to claim 1, wherein: the insulating layer (6) is a silicon rubber insulating material layer, and the outer wall of the insulating layer (6) is uniformly coated with high-temperature resistant paint.
CN202321915751.7U 2023-07-20 2023-07-20 Photoelectric composite overhead cable Active CN220252921U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321915751.7U CN220252921U (en) 2023-07-20 2023-07-20 Photoelectric composite overhead cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321915751.7U CN220252921U (en) 2023-07-20 2023-07-20 Photoelectric composite overhead cable

Publications (1)

Publication Number Publication Date
CN220252921U true CN220252921U (en) 2023-12-26

Family

ID=89271018

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321915751.7U Active CN220252921U (en) 2023-07-20 2023-07-20 Photoelectric composite overhead cable

Country Status (1)

Country Link
CN (1) CN220252921U (en)

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