CN216053923U - Z-shaped structure energy-saving conductor and composite cable - Google Patents
Z-shaped structure energy-saving conductor and composite cable Download PDFInfo
- Publication number
- CN216053923U CN216053923U CN202122656147.4U CN202122656147U CN216053923U CN 216053923 U CN216053923 U CN 216053923U CN 202122656147 U CN202122656147 U CN 202122656147U CN 216053923 U CN216053923 U CN 216053923U
- Authority
- CN
- China
- Prior art keywords
- conductor layer
- layer
- supporting part
- conductor
- annular
- 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.)
- Active
Links
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a Z-shaped structure energy-saving conductor and a composite cable, wherein the Z-shaped structure energy-saving conductor comprises a central conductor layer and a first annular conductor layer; the central conductor layer is formed by mutually non-pressing and twisting a plurality of round conducting wires; the first annular conductor layer comprises a plurality of Z-shaped wires which are spliced with each other and surround the outside of the central conductor layer, the Z-shaped wires comprise a conductive part, a first supporting part and a second supporting part, the first supporting part and the second supporting part are arranged at the upper end and the lower end of the conductive part, and the conductive part, the first supporting part and the second supporting part are integrally formed; the transmission device has the advantages of stable structure, low line loss, large transmission capacity, smooth surface, difficult flanging and energy conservation.
Description
Technical Field
The utility model relates to the technical field of cable design, in particular to a Z-shaped structure energy-saving conductor and a composite cable.
Background
In recent years, with the advance of urban planning and construction, the demand of cables for power distribution is increasing; meanwhile, in order to advocate energy conservation and reduce consumption vigorously, limited resources and environmental capacity provide sustainable support for economic and social development, the method is a specific practice for implementing scientific development and is an important content for building and saving society. Therefore, how to effectively improve the transmission efficiency of the cable, reduce the line loss and save the consumption of nonferrous metals is an important technical subject of the cable industry.
At present, a cable conductor is usually wound by adopting a compact round conductor structure in the design process; however, the compressed round conductor structure introduces large additional resistance increase due to cold drawing hardening in the processing process, and the problems of conductor resistance loss increase, cable transmission capacity reduction and excessive power loss exist.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an energy-saving conductor with a Z-shaped structure, which can effectively solve the problems of increased resistance loss of the conductor and reduced transmission capacity of a cable, and has the advantages of stable structure, low line loss, large transmission capacity, smooth surface, difficult flanging and energy saving.
In order to achieve the purpose, the technical scheme provided by the utility model is as follows:
a Z-shaped structure energy-saving conductor comprises a central conductor layer and a first annular conductor layer; the central conductor layer is formed by mutually non-pressing and twisting a plurality of round conducting wires; first annular conductor layer includes many Z shape wires, and many Z shape wire non-sticiss the transposition and be in center conductor layer's outside, the Z shape wire includes conductive part, first supporting part and second supporting part set up in both ends about the conductive part, set up for integrated into one piece between conductive part, first supporting part and the second supporting part, interlock each other between the first supporting part of two adjacent Z shape wire upper ends, the interlock each other of the second supporting part of two adjacent Z shape wire lower extremes.
Furthermore, a first bulge extending leftwards is arranged on one side of the first supporting part, and a first groove matched with the first bulge in size is arranged between the other end of the first supporting part and the conductive part; one side of the second supporting part is provided with a second bulge extending rightwards, and a second groove matched with the second bulge in size is formed between the other end of the second supporting part and the conductive part.
Further, still including second annular conductor layer, second annular conductor layer includes many Z shape wires, and many the mutual concatenation of Z shape wire is around the outside of first annular conductor layer, center conductor layer, first annular conductor layer and second annular conductor layer are located the same axis.
Further, the center conductor layer, the first annular conductor layer and the second annular conductor layer are located on the same axis.
Furthermore, the central conductor layer is formed by non-pressing and twisting six round wires; the center conductor layer includes an inner center conductor layer and an outer center conductor layer, the outer center conductor layer surrounds the outside of the inner center conductor layer, and the inner center conductor layer and the outer center conductor layer are located on the same axis.
Furthermore, the first annular conductor layer is formed by mutually pressing and twisting twelve Z-shaped conducting wires, and the twelve Z-shaped conducting wires are mutually spliced to form the first annular conductor layer which is tightly wound outside the central conductor layer and is coaxial with the central conductor layer.
Further, the second annular conductor layer is formed by twenty Z shape wires sticis the transposition each other, eighteen Z shape wire splices each other and forms closely the winding and is in first annular conductor layer outside and with the coaxial second annular conductor layer of center conductor layer.
The embodiment also provides a composite cable, which comprises an protective layer, a filling layer, an insulating layer and the energy-saving conductor with the Z-shaped structure, wherein the insulating layer is arranged inside the protective layer, the insulating layer covers the outer surface of the energy-saving conductor with the Z-shaped structure, and the filling layer is positioned between the insulating layers.
Furthermore, the number of the Z-shaped energy-saving conductors is three, and the three Z-shaped energy-saving conductors are uniformly distributed in the protective layer.
Further, the insulating layer comprises a conductor shield, an insulator and an insulating shield which are arranged from inside to outside in sequence, wherein the conductor shield is the innermost layer; the insulation is disposed between the conductor shield and the insulation shield.
Furthermore, the protective layer comprises a wrapping belt, a separation sleeve, a steel belt and an outer sheath which are sequentially arranged from inside to outside, wherein the wrapping belt is the innermost layer, the separation sleeve is arranged between the wrapping belt and the steel belt, and the outer sheath is arranged on the outer surface of the steel belt.
The utility model has the following beneficial effects:
(1) the first annular conductor layer comprises a plurality of Z-shaped conducting wires; the Z-shaped lead comprises a conductive part, a first supporting part and a second supporting part, and the structural stability of the Z-shaped energy-saving conductor is further improved through the structural supporting characteristics of the first supporting part and the second supporting part and mutual occlusion between the adjacent supporting part and the second supporting part, so that the structure of the conductor is more compact; the outer curved surface of the Z-shaped lead has an effect, and the acting force in the direction vertical to the inner curved surface is zero, so that the radial bearing capacity of the first annular conductor layer is effectively improved, the first annular conductor layer and the inner central conductor layer are not extruded by external pressure, the resistance increase caused by cold drawing hardening of the Z-shaped energy-saving conductor in the pressing process is avoided, the problems of conductor resistance loss increase and cable transmission capacity reduction are solved, and the purpose of energy conservation is realized; the transmission line has the advantages of stable structure, low line loss, large transmission capacity and energy conservation.
(2) Owing to be provided with second annular conductor layer, can not only strengthen the structural strength of the energy-conserving conductor of Z type structure through the dual protection cooperation of first annular conductor layer and second annular conductor layer, avoid the conductor to produce point discharge easily and cause the harm of cable breakdown, still improved the stability ability of the energy-conserving conductor of Z type structure simultaneously, the surface is smooth, has solved the easy turn-ups technical problem of wire in the production process, has the smooth and difficult turn-ups advantage in surface.
Drawings
The utility model is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the utility model, and for a person skilled in the art, further drawings can be derived from the following drawings without inventive effort.
Fig. 1 is a schematic cross-sectional view of the energy-saving conductor of Z-type structure in example 1.
Fig. 2 is a perspective view of the Z-shaped lead in this embodiment.
Fig. 3 is a schematic cross-sectional view of the energy-saving conductor of the Z-shaped structure in example 2.
FIG. 4 is a flow chart of the operation of the process for preparing the energy-saving conductor of Z-type structure in example 2.
Fig. 5 is an overall sectional structure diagram of the composite cable of example 3.
The figure includes: the conductive cable comprises a central conductor layer 1, a round conductor 11, an inner central conductor layer 12, an outer central conductor layer 13, a first annular conductor layer 2, a Z-shaped conductor 21, a conductive part 211, a first supporting part 212, a second supporting part 213, a first protrusion 214, a first groove 215, a second protrusion 216, a second groove 217, a protective layer 4, a wrapping tape 41, an isolation sleeve 42, a steel strip 43, an outer sheath 44, a filling layer 5, an insulating layer 6, a conductor shield 61, an insulator 62 and an insulation shield 63.
Detailed Description
The present invention will be described in further detail with reference to the drawings and specific examples so that those skilled in the art can better understand the present invention and can implement the present invention, but the examples are not intended to limit the present invention, and in the present examples, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like as used herein are for illustrative purposes only.
Example 1:
as shown in fig. 1, the present embodiment provides a Z-structured energy-saving conductor, which includes a central conductor layer 1 and a first annular conductor layer 2; the central conductor layer 1 is formed by mutually non-pressing and twisting a plurality of round conducting wires 11; first annular conductor layer 2 includes many Z shape wires 21, and many Z shape wire 21 splices each other and centers on center conductor layer 1's outside, Z shape wire 21 includes conductive part 211, first supporting part 212 and second supporting part 213 set up in both ends about conductive part 211, set up for integrated into one piece between conductive part 211, first supporting part 212 and the second supporting part 213, interlock each other between the first supporting part of two adjacent Z shape wire upper ends, the second supporting part of two adjacent Z shape wire lower extremes interlock each other.
The first annular conductor layer comprises a plurality of Z-shaped conducting wires; the Z-shaped lead comprises a conductive part, a first supporting part and a second supporting part, and the structural stability of the Z-shaped energy-saving conductor is further improved through the structural supporting characteristics of the first supporting part and the second supporting part and mutual occlusion between the adjacent supporting part and the second supporting part, so that the structure of the conductor is more compact; the outer curved surface of the Z-shaped lead has an effect, and the acting force in the direction vertical to the inner curved surface is zero, so that the radial bearing capacity of the first annular conductor layer is effectively improved, the first annular conductor layer and the inner central conductor layer are not extruded by external pressure, the resistance increase caused by cold drawing hardening of the Z-shaped energy-saving conductor in the pressing process is avoided, the problems of conductor resistance loss increase and cable transmission capacity reduction are solved, and the purpose of energy conservation is realized; the transmission line has the advantages of stable structure, low line loss, large transmission capacity and energy conservation.
In a preferred embodiment, a first protrusion 214 extending leftwards is disposed on one side of the first supporting portion 212, and a first groove 215 matched with the first protrusion 214 in size is disposed between the other end of the first supporting portion 212 and the conductive portion 211; a second protrusion 216 extending rightward is disposed on one side of the second supporting portion 213, and a second groove 217 having a size corresponding to the second protrusion 216 is disposed between the other end of the second supporting portion 213 and the conductive portion 211.
In the preferred embodiment, the center conductor layer 1 is formed by non-compacting twisting twenty round wires 11.
In a preferred embodiment, the first annular conductor layer 2 is formed by pressing and twisting twenty Z-shaped wires 21, and the twenty Z-shaped wires 21 are spliced with each other to form the first annular conductor layer 2 tightly wound outside the central conductor layer 1 and coaxial with the central conductor layer 1.
Example 2:
as shown in fig. 2, the present embodiment provides a Z-shaped structure energy saving conductor, which includes a central conductor layer 1 and a first annular conductor layer 2; the central conductor layer 1 is formed by mutually non-pressing and twisting a plurality of round conducting wires 11; first annular conductor layer 2 includes many Z shape wires 21, and many Z shape wire 21 splices each other and centers on central conductor layer 1's outside, Z shape wire 21 includes conductive part 211, first supporting part 212 and second supporting part 213 set up in both ends about conductive part 211, set up for integrated into one piece between conductive part 211, first supporting part 212 and the second supporting part 213, still including second annular conductor layer 3, second annular conductor layer 3 includes many Z shape wires 21, and many Z shape wire 21 splices each other and centers on first annular conductor layer 2's outside, central conductor layer 1, first annular conductor layer 2 and second annular conductor layer are located same axis.
Owing to be provided with second annular conductor layer, can not only strengthen the structural strength of the energy-conserving conductor of Z type structure through the dual protection cooperation of first annular conductor layer and second annular conductor layer, avoid the conductor to produce point discharge easily and cause the harm of cable breakdown, still improved the stability ability of the energy-conserving conductor of Z type structure simultaneously, the surface is smooth, has solved the easy turn-ups technical problem of wire in the production process, has the smooth and difficult turn-ups advantage in surface.
In a preferred embodiment, a first protrusion 214 extending leftwards is disposed on one side of the first supporting portion 212, and a first groove 215 matched with the first protrusion 214 in size is disposed between the other end of the first supporting portion 212 and the conductive portion 211; a second protrusion 216 extending rightward is disposed on one side of the second supporting portion 213, and a second groove 217 having a size corresponding to the second protrusion 216 is disposed between the other end of the second supporting portion 213 and the conductive portion 211.
In a preferred embodiment, the center conductor layer 1, the first annular conductor layer 2 and the second annular conductor layer are located on the same axis.
In a preferred embodiment, the central conductor layer 1 is formed by non-pressing and twisting six round wires 11; the center conductor layer 1 includes an inner center conductor layer 11 and an outer center conductor layer 12, the outer center conductor layer 12 surrounds the outside of the inner center conductor layer 11, and the inner center conductor layer 1 and the outer center conductor layer 1 are located on the same axis.
In a preferred embodiment, the first annular conductor layer 2 is formed by pressing and twisting twelve Z-shaped wires 21, and the twelve Z-shaped wires 21 are spliced together to form the first annular conductor layer 2 tightly wound around the outside of the central conductor layer 1 and coaxial with the central conductor layer 1.
In a preferred embodiment, the second annular conductor layer 3 is formed by pressing and twisting twenty Z-shaped wires 21, and eighteen Z-shaped wires 21 are spliced together to form the second annular conductor layer 3 tightly wound outside the first annular conductor layer 2 and coaxial with the central conductor layer 1.
As shown in fig. 3, the energy-saving conductor with Z-shaped structure in this embodiment is processed as follows:
(1) non-compacting stranding process of the center conductor layer 1: a plurality of circular conductive wires 11 are twisted into a cylindrical shape. The round wire does not undergo plastic deformation such as diameter shrinkage, profiling and the like in the twisting process, and the metal lattice of the round wire does not change;
(2) the twisting process of the first annular conductor layer 2: the plurality of Z-shaped wires 21 are tightly fastened and twisted together to form the first annular conductor layer 2 supported in an arch shape. The first tile-shaped wire 21 is not plastically deformed during the twisting process, and the metal lattice of the tile-shaped wire is not changed.
(3) Twisting process of the second annular conductor layer 3: and tightly buckling and twisting a plurality of Z-shaped leads 21 together to form the second annular conductor layer 3 supported in an arch shape. The second tile-shaped wire 31 is not plastically deformed during the twisting process, and the metal lattice of the tile-shaped wire is not changed.
Example 3: composite cable
As shown in fig. 3, the present embodiment further provides a composite cable, which includes a protective layer 4, a filling layer 5, an insulating layer 6 and the Z-shaped energy-saving conductor, where the insulating layer 6 is disposed inside the protective layer 4, the insulating layer 6 covers an outer surface of the Z-shaped energy-saving conductor, and the filling layer 5 is located between the insulating layers 6.
In a preferred embodiment, three energy-saving conductors with a Z-shaped structure are provided, and the three energy-saving conductors with a Z-shaped structure are uniformly distributed in the protective layer 4.
In a preferred embodiment, the insulating layer 6 includes a conductor shield 61, an insulator 62 and an insulating shield 63, which are sequentially arranged from inside to outside, wherein the conductor shield 61 is an innermost layer; the insulation 62 is arranged between the shield and the insulation shield 63, and due to the arrangement of the conductor shield 61, the insulation 62 and the insulation shield 63, the Z-shaped structure energy-saving conductor is effectively shielded through the matching use of the conductor shield 61, the insulation 62 and the insulation shield 63.
In a preferred embodiment, the protective layer 4 comprises a wrapping tape 41, a spacer sleeve 42, a steel strip 43 and an outer sheath 44 which are sequentially arranged from inside to outside, wherein the wrapping tape 41 is the innermost layer, the spacer sleeve 42 is arranged between the wrapping tape 41 and the steel strip 43, and the outer sheath 44 is arranged on the outer surface of the steel strip 43.
In conclusion, the energy-saving conductor with the Z-shaped structure and the composite cable provided by the utility model can effectively solve the problems that the resistance loss of the conductor is increased and the transmission capacity of the cable is reduced; but also can avoid the harm of cable breakdown caused by the fact that the conductor is easy to generate point discharge, and has the advantages of stable structure, small line loss, large transmission capacity, smooth surface, difficult flanging and energy conservation.
In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, reference to the description of the terms "preferred embodiment," "yet another embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. The utility model provides an energy-conserving conductor of Z type structure which characterized in that: comprising a central conductor layer and a first annular conductor layer; the central conductor layer is formed by mutually non-pressing and twisting a plurality of round conducting wires; first annular conductor layer includes many Z shape wires, and many the mutual non-sticis transposition of Z shape wire is in center conductor layer's outside, the Z shape wire includes conductive part, first supporting part and second supporting part set up in both ends about the conductive part, set up for integrated into one piece between conductive part, first supporting part and the second supporting part, interlock each other between the first supporting part of two adjacent Z shape wire upper ends, the interlock each other of the second supporting part of two adjacent Z shape wire lower extremes.
2. The Z-configuration energy saving conductor of claim 1, wherein: a first bulge extending leftwards is arranged on one side of the first supporting part, and a first groove matched with the first bulge in size is formed between the other end of the first supporting part and the conductive part; one side of the second supporting part is provided with a second bulge extending rightwards, and a second groove matched with the second bulge in size is formed between the other end of the second supporting part and the conductive part.
3. The Z-configuration energy saving conductor of claim 2, wherein: still including second annular conductor layer, second annular conductor layer includes many Z shape wires, and many the mutual concatenation of Z shape wire is around first annular conductor layer's outside, center conductor layer, first annular conductor layer and second annular conductor layer are located the same axis.
4. The Z-configuration energy saving conductor of claim 2, wherein: the central conductor layer is formed by non-pressing and twisting six round wires; the center conductor layer includes an inner center conductor layer and an outer center conductor layer, the outer center conductor layer surrounds the outside of the inner center conductor layer, and the inner center conductor layer and the outer center conductor layer are located on the same axis.
5. The Z-configuration energy saving conductor of claim 2, wherein: the first annular conductor layer is formed by mutually non-pressing and twisting twelve Z-shaped conducting wires, and the twelve Z-shaped conducting wires are mutually spliced to form a first annular conductor layer which is tightly wound outside the central conductor layer and is coaxial with the central conductor layer.
6. The Z-configuration energy saving conductor of claim 3, wherein: the second annular conductor layer is formed by twenty Z shape wires mutual non-sticis transposition, eighteen Z shape wire splices each other and forms closely the winding and is in first annular conductor layer outside and with the coaxial second annular conductor layer of center conductor layer.
7. A composite cable, characterized by: the Z-shaped structure energy-saving conductor comprises a protective layer, a filling layer, an insulating layer and the Z-shaped structure energy-saving conductor as claimed in any one of claims 1 to 6, wherein the insulating layer is arranged in the protective layer, the insulating layer covers the outer surface of the Z-shaped structure energy-saving conductor, and the filling layer is positioned between the insulating layers.
8. The composite cable of claim 7, wherein: the number of the Z-shaped energy-saving conductors is three, and the three Z-shaped energy-saving conductors are uniformly distributed in the protective layer.
9. The composite cable of claim 7, wherein: the insulating layer comprises a conductor shield, an insulator and an insulating shield which are arranged from inside to outside in sequence, wherein the conductor shield is the innermost layer; the insulation is disposed between the conductor shield and the insulation shield.
10. The composite cable of claim 7, wherein: the protective layer comprises a wrapping belt, a separation sleeve, a steel belt and an outer sheath which are sequentially arranged from inside to outside, wherein the wrapping belt is the innermost layer, the separation sleeve is arranged between the wrapping belt and the steel belt, and the outer sheath is arranged on the outer surface of the steel belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122656147.4U CN216053923U (en) | 2021-11-02 | 2021-11-02 | Z-shaped structure energy-saving conductor and composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122656147.4U CN216053923U (en) | 2021-11-02 | 2021-11-02 | Z-shaped structure energy-saving conductor and composite cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216053923U true CN216053923U (en) | 2022-03-15 |
Family
ID=80550571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122656147.4U Active CN216053923U (en) | 2021-11-02 | 2021-11-02 | Z-shaped structure energy-saving conductor and composite cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216053923U (en) |
-
2021
- 2021-11-02 CN CN202122656147.4U patent/CN216053923U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216053923U (en) | Z-shaped structure energy-saving conductor and composite cable | |
| CN215988131U (en) | Energy-saving conductor with tile-shaped structure and composite cable | |
| CN204215798U (en) | Aluminum alloy conductor power cable is pressed in one | |
| CN211376210U (en) | Aluminum core polyvinyl chloride insulation low density polyethylene sheath parallel bundling cable | |
| CN210743666U (en) | Metal band shielding high-voltage power cable with tenon-and-mortise structure | |
| CN109300607A (en) | A kind of abnormity single line circle process copper conductor and special-shaped single line circle process copper conductor cable | |
| CN209766055U (en) | cable conductor | |
| CN2650299Y (en) | Low-loss power cable | |
| CN102915809B (en) | Power cable is amassed in the heavy in section of radially layered stranded conductor | |
| CN214068425U (en) | Cable with improved insulation | |
| CN205810464U (en) | Rated voltage 20kV and following middle strength aluminium alloy conductor overhead insulated cable | |
| CN217386693U (en) | Micro-compression aluminum type wire conductor for high-voltage cable | |
| CN220753095U (en) | Combined conductor for medium-voltage cable | |
| CN208111140U (en) | Tension low pressure flexible cable | |
| CN214279630U (en) | Three-core gas insulated cable | |
| CN208126898U (en) | Tension combined shielding cable | |
| CN103680746A (en) | Compact three-core composite ribbon cable | |
| CN2629180Y (en) | Metal wire shielding layer cable | |
| CN215377006U (en) | High-strength rubber sleeve cable | |
| CN218996381U (en) | Compression-resistant and wear-resistant overhead cable | |
| CN210777907U (en) | Cable connecting line for fast entering house | |
| CN203721252U (en) | Three-core composite flat cable | |
| CN217655687U (en) | Capacity-increasable overhead insulated cable | |
| CN219246412U (en) | Heat-resistant high-strength aluminum alloy cable | |
| CN215287446U (en) | Winding post tool for bracket for cable production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |