A steel core aluminum stranded wire outdoor branching wire and cable

Abstract

The present invention relates to the field of cable technology, and in particular to a steel core aluminum stranded wire outdoor branching wire and cable, comprising a steel core aluminum stranded wire body, a coating unit, including a coating layer arranged outside the bending section of the steel core aluminum stranded wire body; and a tension control unit, including an upper mounting assembly and a lower mounting assembly arranged between the coating layer and the steel core aluminum stranded wire body, and a tension control assembly. The present invention provides tension protection for the bending end of the steel core aluminum stranded wire by setting a tension control unit, avoids mechanical damage to the steel core aluminum stranded wire, and improves the fatigue life of the steel core aluminum stranded wire. The coating layer is used to realize the integrated setting of the tension control unit and the steel core aluminum stranded wire body, and provides bending protection for the steel core and the existing coating layer outside the steel core, avoiding cracks and fatigue damage on the cable surface, ensuring that the bending radius of the steel core aluminum stranded wire body is greater than the minimum allowable bending radius, and preventing the steel core aluminum stranded wire body from excessive bending during installation and use.

Description

Technical Field

[0001] The invention relates to the technical field of cables, in particular to a steel core aluminum stranded wire outdoor branching electric wire cable. Background Art

[0002] Steel-core aluminum stranded wire is a common steel-core aluminum stranded wire body for power transmission lines. It is made of multiple strands of aluminum wire and steel core. The aluminum wire is responsible for conducting current, while the steel core provides structural support, allowing the steel-core aluminum stranded wire body to withstand greater tension in power lines.

[0003] During outdoor installation of steel core aluminum stranded wire, the tension of the steel core aluminum stranded wire body needs to be controlled to prevent excessive tension from damaging the steel core aluminum stranded wire body or tower structure. At the same time, during the outdoor branching installation of steel core aluminum stranded wire, the reliability of electrical connection and mechanical strength needs to be ensured. The steel core aluminum stranded wire will bend during the branching process. If there is no good tension protection during the bending process of the steel core, it may cause mechanical damage to the steel core aluminum stranded wire, thereby affecting the fatigue life of the steel core aluminum stranded wire. Summary of the invention

[0004] In view of the problem in the above or prior art that there is no good tension protection during the bending process of the steel core, which may cause mechanical damage to the steel core aluminum stranded wire and further affect the fatigue life of the steel core aluminum stranded wire, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a steel core aluminum stranded wire outdoor branching wire and cable.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a steel core aluminum stranded wire outdoor branching wire and cable, characterized in that it includes a steel core aluminum stranded wire body, a coating unit, and a tension control unit.

[0007] Among them, the coating unit includes a coating layer arranged outside the bending section of the steel core aluminum stranded wire body; and the tension control unit includes an upper mounting component and a lower mounting component arranged between the coating layer and the steel core aluminum stranded wire body, and a tension control component with two ends respectively arranged on the upper mounting component and the lower mounting component.

[0008] As a preferred solution of the steel core aluminum stranded wire outdoor branching wire and cable of the present invention, the tension control component is slidably arranged between the coating layer and the steel core aluminum stranded wire body through the upper installation component and the lower installation component.

[0009] As a preferred solution of the steel core aluminum stranded wire outdoor branching wire and cable of the present invention, the tension control component includes an upper tensioning rod arranged between the coating layer and the steel core aluminum stranded wire body and connected to the upper mounting component, a lower tensioning rod connected to the lower mounting component, and a control bending rod whose two ends are respectively connected to the upper tensioning rod and the lower tensioning rod and located in the bending section of the steel core aluminum stranded wire body.

[0010] As a preferred solution of the steel core aluminum stranded wire outdoor branching wire and cable of the present invention, the upper mounting assembly includes an upper mounting ring arranged between the coating layer and the steel core aluminum stranded wire body, and a tension rod mounting seat slidably arranged on the upper mounting ring.

[0011] As a preferred solution of the steel core aluminum stranded wire outdoor branching wire and cable of the present invention, the upper mounting assembly also includes an edge sliding seat slidably arranged on the upper mounting ring, and a connecting rod is arranged between the edge sliding seat and the tension rod mounting seat.

[0012] As a preferred solution of the steel core aluminum stranded wire outdoor branching wire and cable of the present invention, wherein: multiple groups of tension rod mounting seats are slidably arranged on the upper mounting ring, and the edge sliding seats are arranged at both ends of the multiple groups of tension rod mounting seats.

[0013] As a preferred solution of the steel core aluminum stranded wire outdoor branching wire and cable of the present invention, wherein: the connecting rod is made of flexible memory material.

[0014] As a preferred solution of the steel core aluminum stranded wire outdoor branching wire and cable of the present invention, the coating layer includes an upper coating edge layer and a lower coating edge layer arranged on the steel core aluminum stranded wire body, an upper protective layer corresponding to the upper installation component is arranged on the upper coating edge layer, a lower protective layer corresponding to the lower installation component is arranged on the lower coating edge layer, and a bending layer is arranged between the upper protective layer and the lower protective layer.

[0015] As a preferred solution of the steel core aluminum stranded wire outdoor branching wire and cable of the present invention, the bending layer and the tension control component are arranged in coordination.

[0016] As a preferred solution of the steel core aluminum stranded wire outdoor branching wire and cable of the present invention, wherein: the structures of the upper installation component and the lower installation component are consistent.

[0017] The steel core aluminum stranded wire outdoor tapping wire and cable of the present invention has the following beneficial effects: by setting a tension control unit, tension protection is provided to the bent end of the steel core aluminum stranded wire, mechanical damage to the steel core aluminum stranded wire is avoided, and the fatigue life of the steel core aluminum stranded wire is improved; by setting a coating unit, the coating layer is used to realize the integrated setting of the tension control unit and the steel core aluminum stranded wire body. When the steel core aluminum stranded wire body is bent at high strength during outdoor tapping, the coating unit and the tension control unit can provide bending protection to the steel core and the existing coating layer outside the steel core, avoiding cracks and fatigue damage on the cable surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of steel core aluminum stranded wire outdoor branching wire and cable.

[0020] Figure 2 Cross-section of steel core aluminum stranded wire outdoor branching wire and cable Figure 1 .

[0021] Figure 3 Cross-section of the sheath unit and tension control unit in the steel core aluminum stranded wire outdoor branch wire and cable Figure 2 .

[0022] Figure 4 This is an exploded diagram of the sheathing unit and tension control unit in the steel core aluminum stranded wire outdoor branching wire and cable.

[0023] Figure 5 It is a cross-sectional view of the coating of steel core aluminum stranded wire outdoor branching wire and cable.

[0024] Figure 6 It is a schematic diagram of the branching of existing steel core aluminum stranded wire outdoor branching wires and cables.

[0025] Figure 7 A perspective view of the tapping of existing steel core aluminum stranded wire outdoor tapping wires and cables.

[0026] In the figure: 100, coating unit; 101, coating layer; 101a, upper coating edge layer; 101b, upper protective layer; 101c, bending layer; 101d, lower protective layer; 101e, lower coating edge layer; 200, tension control unit; 201, upper mounting assembly; 201a, upper mounting ring; 201b, edge sliding seat; 201c, tension rod mounting seat; 201d, connecting rod; 202, tension control assembly; 202a, upper tension rod; 202b, control bending rod; 202c, lower tension rod; 203, lower mounting assembly; 300, branching unit; 301, branching box; 302, bus; 303, branching; 303a, branching one; 303b, branching two; 400, steel core aluminum stranded wire body. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] Example 1, reference Figure 1-2 , which is the first embodiment of the present invention, provides a steel core aluminum stranded wire outdoor branching wire and cable, which can achieve tension protection for the bent end of the steel core aluminum stranded wire, avoid mechanical damage to the steel core aluminum stranded wire, and improve the fatigue life of the steel core aluminum stranded wire. It includes a steel core aluminum stranded wire body 400, a coating unit 100, and a tension control unit 200.

[0029] Among them, the coating unit 100 includes a coating layer 101 arranged outside the bending section of the steel core aluminum stranded wire body 400; the setting of the coating layer 101 realizes the integrated setting of the tension control unit 200 arranged in the bending section of the steel core aluminum stranded wire body 400 and the coating structure of the non-bending section of the steel core aluminum stranded wire body 400.

[0030] Furthermore, the tension control unit 200 includes an upper mounting component 201 and a lower mounting component 203 arranged between the sheath 101 and the steel core aluminum stranded wire body 400. The portion of the steel core aluminum stranded wire body 400 between the upper mounting component 201 and the lower mounting component 203 is the portion where the cable will bend. The upper mounting component 201 and the lower mounting component 203 are provided with a tension control component 202. The tension control component 202 can exert a certain traction force on the portion of the steel core aluminum stranded wire body 400 that needs to be bent, thereby providing the steel core aluminum stranded wire body 400 with a certain elastic deformation ability when subjected to external force. Moreover, since the tension control component 202 is bent itself, it can also absorb part of the external force, thereby achieving the effect of absorbing the tension exerted on the steel core aluminum stranded wire body 400, thereby avoiding the tension exerted on the steel core aluminum stranded wire body 400 exceeding the elastic limit of the material and causing plastic deformation or bending.

[0031] When installing the steel core aluminum stranded wire body 400, tension will be applied in advance to keep the steel core aluminum stranded wire body 400 inside the steel core aluminum stranded wire body 400 in a certain tension state. This pre-tension helps the steel core aluminum stranded wire body 400 to remain stable under the action of external forces such as its own gravity, ice load, wind load, etc., and reduces bending caused by dynamic loads. According to the elastic limit of the material, appropriate tension can enable the steel core aluminum stranded wire body 400 to have a certain elastic deformation ability when subjected to external force, thereby absorbing part of the external force and avoiding plastic deformation or bending due to exceeding the elastic limit of the material. Generally speaking, the pre-tension provided to the steel core aluminum stranded wire body 400 can improve the stability of the steel core aluminum stranded wire body 400 when it maintains a straight state, but when the steel core aluminum stranded wire body 400 needs to be bent, the pre-applied horizontal tension will instead cause the tension generated during the bending process to increase, which is not conducive to maintaining the bending elastic limit of the steel core aluminum stranded wire body 400. Therefore, setting the tension control unit 200 reference Figure 6 - Figure 7 When the steel core aluminum stranded wire body 400 is branched outdoors, it is necessary to connect the branching unit 300 to the steel core aluminum stranded wire body 400. The branching unit 300 includes a branching box 301. The entrance end of the branching box 301 is provided with a bus 302 of the steel core aluminum stranded wire body 400. After passing through the branching box 301, the bus 302 is branched into branch lines 303. The branch lines 303 include multiple groups of branch cables. In a common implementation, the branch line 303 is branched into a branch line 1 303a and a branch line 2 303b. During the branching process, the bus 302 and the branch line 303 need to be kept relatively horizontal. Therefore, there is bound to be a group of branch lines 303 that are misaligned with the bus 302, which results in the need to bend the steel core aluminum stranded wire body 400 when it is branched outdoors. At this time, a tension control component 202 is provided at the bending part of the steel core aluminum stranded wire body 400, and a coating layer 101 is provided to integrate the tension control component 202 and the steel core aluminum stranded wire body 400. The tension control component 202 is used to absorb the tension on the steel core aluminum stranded wire body 400, thereby preventing the steel core aluminum stranded wire body 400 from being subjected to plastic deformation or bending due to the tension exceeding the elastic limit of the material.

[0032] Example 2, reference Figure 1 to Figure 5 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a tension control unit for outdoor branching wires and cables of steel core aluminum stranded wires, which solves the problem of lack of tension protection at the bent end of the steel core aluminum stranded wires. It includes a tension control component 202, and the tension control component 202 is slidably arranged between the sheath 101 and the steel core aluminum stranded wire body 400 through an upper mounting component 201 and a lower mounting component 203. The position of the tension control component 202 relative to the steel core aluminum stranded wire body 400 is the bent section of the steel core aluminum stranded wire body 400.

[0033] Furthermore, the tension control component 202 includes an upper tensioning rod 202a which is arranged between the sheath 101 and the steel core aluminum stranded wire body 400 and connected to the upper mounting component 201, a lower tensioning rod 202c which is connected to the lower mounting component 203, and a control bending rod 202b which is respectively connected to the upper tensioning rod 202a and the lower tensioning rod 202c at both ends and is located in the bending section of the steel core aluminum stranded wire body 400. The upper tensioning rod 202a and the lower tensioning rod 202c are respectively located at the two ends of the bending section of the steel core aluminum stranded wire body 400, and the control bending rod 202b is located at the point where the steel core aluminum stranded wire body 400 is bent. The absolute length of the control bending rod 202b is greater than the relative distance between the upper tensioning rod 202a and the lower tensioning rod 202c. Therefore, the control bending rod 202b is in a bent state when the steel core aluminum stranded wire body 400 is in a horizontal state, and the control bending rod 202b is in a stretched state when the steel core aluminum stranded wire body 400 is in a bent state, which can provide a certain traction force to the steel core aluminum stranded wire body 400, thereby absorbing the tension exerted on the steel core aluminum stranded wire body 400, and thereby preventing the tension exerted on the steel core aluminum stranded wire body 400 from exceeding the elastic limit of the material and causing plastic deformation or bending.

[0034] In addition to the installation of the tension control assembly 202 being able to absorb the tension on the steel core aluminum stranded wire body 400, the structural design of the multiple strands of aluminum stranded wires interlaced inside the steel core aluminum stranded wire body 400 can also be used to evenly distribute the tension on the steel core aluminum stranded wire body 400 to avoid bending caused by local stress concentration. Considering the impact of dynamic loads such as wind, ice, and temperature changes on the steel core aluminum stranded wire body 400, the bending effect caused by these loads is reduced by the design of the steel core coated aluminum stranded wire. During the installation process, the steel core aluminum stranded wire body 400 is applied with an appropriate tension machine so that the steel core aluminum stranded wire body 400 maintains a certain tension between the towers to avoid excessive bending under the action of external forces such as wind. Use suspension devices such as suspension clamps and tension clamps to ensure that the steel core aluminum stranded wire body 400 does not produce an excessively large bending radius at the fixed point on the tower. Install shock absorbers and buffer devices to absorb dynamic loads caused by factors such as wind and temperature changes, and reduce impact and bending on the steel core aluminum stranded wire body 400. An anti-vibration hammer and a damper are installed on the steel core aluminum stranded wire body 400 to reduce the vibration of the steel core aluminum stranded wire body 400 caused by wind vibration and prevent fatigue bending of the steel core aluminum stranded wire body 400 caused by vibration. The structure is designed according to the actual situation of the line to ensure that the bending radius of the steel core aluminum stranded wire body 400 is greater than the minimum allowable bending radius to prevent excessive bending of the steel core aluminum stranded wire body 400 during installation and use.

[0035] The rest of the structure is the same as that of Example 1.

[0036] In summary, when installing the steel core aluminum stranded wire, tension will be applied in advance to keep the steel core aluminum stranded wire body 400 in a certain tension state. This pre-tension helps the steel core aluminum stranded wire body 400 to remain stable under the action of external forces such as its own gravity, ice load, wind load, etc., and reduce bending caused by dynamic loads. According to the elastic limit of the material, appropriate tension can make the steel core aluminum stranded wire body 400 have a certain elastic deformation ability when subjected to external force, thereby absorbing part of the external force and avoiding plastic deformation or bending due to exceeding the elastic limit of the material. A control bending rod 202b is set, and the absolute length of the control bending rod 202b is greater than the relative distance between the upper tensioning rod 202a and the lower tensioning rod 202c, so the control bending rod 202b is in a bent state when the steel core aluminum stranded wire body 400 is in a horizontal state, and the control bending rod 202b is in a stretched state when the steel core aluminum stranded wire body 400 is in a bent state, which can provide a certain traction force to the steel core aluminum stranded wire body 400, thereby absorbing the tension exerted on the steel core aluminum stranded wire body 400, and further avoiding the tension exerted on the steel core aluminum stranded wire body 400 exceeding the elastic limit of the material and causing plastic deformation or bending.

[0037] Example 3, reference Figure 1 to Figure 5, which is the third embodiment of the present invention, is different from the previous embodiment in that this embodiment provides a tension control unit 200 for outdoor branching wires and cables of steel core aluminum stranded wires, which solves the problem of lack of tension protection at the bent end of the steel core aluminum stranded wires, and includes an upper mounting assembly 201, including an upper mounting ring 201a disposed between the coating layer 101 and the steel core aluminum stranded wire body 400, and a tension rod mounting seat 201c slidably disposed on the upper mounting ring 201a. The structures of the upper mounting assembly 201 and the lower mounting assembly 203 are consistent. The lower mounting assembly 203 is provided with a lower mounting ring corresponding to the upper mounting ring 201a, and the lower mounting assembly 203 also includes a lower tensioning rod mounting seat corresponding to the tensioning rod mounting seat 201c. The upper tensioning rod 202a at one end of the control bending rod 202b is arranged on the tensioning rod mounting seat 201c of the upper mounting ring 201a, and the lower tensioning rod 202c at the other end of the control bending rod 202b is arranged on the tensioning rod mounting seat 201c of the lower mounting ring. At the same time, by setting the tensioning rod mounting seat 201c, the upper tensioning rod 202a and the upper mounting ring 201a are slidably connected, thereby providing the upper mounting ring 201a and the upper tensioning rod 202a with a certain degree of rotational freedom when the tension control unit 200 is bent. And because the bending direction of the steel core aluminum stranded wire body 400 is not fixed, the sliding connection between the upper tensioning rod 202a and the upper mounting ring 201a can also enable the tension control unit 200 to rotate on the upper mounting ring 201a and the lower mounting ring with the axis of the steel core aluminum stranded wire body 400 as the center, thereby improving the rotational freedom of the tension control unit 200 with the axis of the steel core aluminum stranded wire body 400 as the center, so that the tension control unit 200 is always located in the direction and position where the steel core aluminum stranded wire body 400 is about to bend.

[0038] Furthermore, the upper mounting assembly 201 further includes an edge sliding seat 201b slidably disposed on the upper mounting ring 201a, and a connecting rod 201d is disposed between the edge sliding seat 201b and the tension rod mounting seat 201c. The setting of the edge sliding seat 201b ensures that there is a certain gap between the coating layer 101 and the steel core aluminum stranded wire body 400, leaving a certain space for thermal expansion and contraction of the tension control component 202. At the same time, the edge sliding seat 201b and the upper mounting ring 201a are slidably connected, which can drive the tension rod mounting seat 201c and the tension control component 202 on the tension rod mounting seat 201c to move relative to the upper mounting ring 201a. Similarly, the edge sliding seat 201b and the lower mounting ring are slidably connected, which can drive the tension rod mounting seat 201c and the tension control component 202 on the tension rod mounting seat 201c to move relative to the lower mounting ring, thereby improving the rotational freedom of the tension control unit 200 with the axis of the steel core aluminum stranded wire body 400 as the center, so that the tension control unit 200 is always located in the direction and position where the steel core aluminum stranded wire body 400 is about to bend.

[0039] Furthermore, a plurality of tension rod mounting seats 201c are slidably arranged on the upper mounting ring 201a, and the edge sliding seats 201b are arranged at both ends of the plurality of tension rod mounting seats 201c.

[0040] Furthermore, the connecting rod 201d is made of a flexible memory material, such as thermoplastic polyurethane. Polyurethane has good elasticity and flexibility and can be shaped at a certain temperature. Polyurethane is applied to the connecting rod 201d to provide a certain resilience protection between the multiple sets of tensioning rod mounting seats 201c. At the same time, the overall tension control component 202 can also use thermoplastic polyurethane, and it should be noted that the deformation temperature of the thermoplastic polyurethane is greater than the maximum heating temperature of the steel core aluminum stranded wire body 400 during operation to avoid deformation of the thermoplastic polyurethane due to excessive temperature.

[0041] Furthermore, the coating layer 101 includes an upper coating edge layer 101a and a lower coating edge layer 101e disposed on the steel core aluminum stranded wire body 400, an upper protective layer 101b corresponding to the upper mounting assembly 201 is disposed on the upper coating edge layer 101a, a lower protective layer 101d corresponding to the lower mounting assembly 203 is disposed on the lower coating edge layer 101e, and a bending layer 101c is disposed between the upper protective layer 101b and the lower protective layer 101d. By providing the coating layer 101, the tension control assembly 202 can be completely integrated and disposed inside the steel core aluminum stranded wire body 400, thereby enhancing the integrity of the steel core aluminum stranded wire body 400.

[0042] Furthermore, the bending layer 101c and the tension control component 202 are arranged in cooperation. Since the control bending rod 202b is arranged between the bending layer 101c and the steel core aluminum stranded wire body 400, it is necessary to leave enough space between the packaging bending layer 101c and the steel core aluminum stranded wire body 400 for the setting of the control bending rod 202b.

[0043] In summary, through the above measures and structural designs, the mechanical principles can be effectively used to protect the steel-core aluminum stranded wire to prevent it from bending fatigue and cracks during use, thereby ensuring the safe operation and long-term stability of the power transmission line.

[0044] The rest of the structure is the same as that of Example 2.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A steel core aluminum stranded wire outdoor branching wire and cable, characterized in that: include, Steel core aluminum stranded wire body (400); A coating unit (100) comprising a coating layer (101) arranged outside the bending section of the steel core aluminum stranded wire body (400); and A tension control unit (200) comprising an upper mounting component (201) and a lower mounting component (203) arranged between the coating layer (101) and the steel core aluminum stranded wire body (400), and a tension control component (202) with two ends respectively arranged on the upper mounting component (201) and the lower mounting component (203); The tension control component (202) is slidably arranged between the coating layer (101) and the steel core aluminum stranded wire body (400) through the upper mounting component (201) and the lower mounting component (203); the tension control component (202) comprises an upper tensioning rod (202a) arranged between the coating layer (101) and the steel core aluminum stranded wire body (400) and connected to the upper mounting component (201), a lower tensioning rod (202c) connected to the lower mounting component (203), and a control bending rod (202b) whose two ends are respectively connected to the upper tensioning rod (202a) and the lower tensioning rod (202c) and located in the bending section of the steel core aluminum stranded wire body (400).

2. The steel core aluminum stranded wire outdoor branching wire and cable according to claim 1, characterized in that: The upper mounting assembly (201) comprises an upper mounting ring (201a) arranged between the coating layer (101) and the steel core aluminum stranded wire body (400), and a tension rod mounting seat (201c) slidably arranged on the upper mounting ring (201a).

3. The steel core aluminum stranded wire outdoor branching wire and cable as claimed in claim 2, characterized in that: The upper mounting assembly (201) further comprises an edge sliding seat (201b) slidably arranged on the upper mounting ring (201a), and a connecting rod (201d) is arranged between the edge sliding seat (201b) and the tension rod mounting seat (201c).

4. The steel core aluminum stranded wire outdoor branching wire and cable as claimed in claim 3, characterized in that: A plurality of groups of tension rod mounting seats (201c) are slidably arranged on the upper mounting ring (201a), and the edge sliding seats (201b) are arranged at both ends of the plurality of groups of tension rod mounting seats (201c).

5. The steel core aluminum stranded wire outdoor branching wire and cable as claimed in claim 4, characterized in that: The connecting rod (201d) is made of a flexible memory material.

6. The steel core aluminum stranded wire outdoor branching wire and cable as claimed in any one of claims 2 to 5, characterized in that: The coating layer (101) comprises an upper coating edge layer (101a) and a lower coating edge layer (101e) which are arranged on the steel core aluminum stranded wire body (400); an upper protective layer (101b) corresponding to the upper mounting component (201) is arranged on the upper coating edge layer (101a); a lower protective layer (101d) corresponding to the lower mounting component (203) is arranged on the lower coating edge layer (101e); and a bending layer (101c) is arranged between the upper protective layer (101b) and the lower protective layer (101d).

7. The steel core aluminum stranded wire outdoor branching wire and cable as claimed in claim 6, characterized in that: The bending layer (101c) and the tension control component (202) are arranged in coordination.

8. The steel core aluminum stranded wire outdoor branching wire and cable as claimed in claim 7, characterized in that: The upper mounting assembly (201) and the lower mounting assembly (203) are structurally arranged symmetrically relative to the tension control assembly (202).

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