CN212276889U

CN212276889U - Overhead cable and overhead photoelectric composite cable

Info

Publication number: CN212276889U
Application number: CN202022036742.3U
Authority: CN
Inventors: 灏圭孩; 尹红
Original assignee: Yixing Yudie Technology Co Ltd
Current assignee: Yixing Yudie Technology Co Ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-01-01
Anticipated expiration: 2030-09-17

Abstract

The utility model belongs to the technical field of electric power and communication, a aerial cable is related to, it depends on the body to have to hang, three conductor, its characterized in that leans on the body to have three one end and links together the body, the other end of first body and the other end of second body are located the both sides of the one end of first body respectively, the other end of third body is located one side of second body and is close to mutually with the one end of first body, the other end of body has the opening, the inside of body has the conductor hole, the conductor is located the conductor downthehole. The application also discloses an overhead photoelectric composite cable. The utility model discloses following main beneficial effect has: the structure is simple, the manufacture is easy, the cost is low, the heat dissipation effect is excellent, the laying speed is high, and the hanging on the overhead line is stable and reliable.

Description

Overhead cable and overhead photoelectric composite cable

Technical Field

The utility model belongs to the technical field of electric power and communication, especially, relate to an aerial [ insulated ] cable and built on stilts photoelectric composite cable.

Background

In the prior art, overhead laying of cables is mainly in a mode of hanging along an overhead line, and the mode adopts a clamp to clamp the cables section by section, which is not efficient; the other mode is a self-supporting mode, and the mode has high requirements on bearing force of the cable and high cost.

CN211264992U discloses an improved two-conductor cable, the hook is thin and easy to be damaged; when the hook is thick, the material consumption is large and the cost is high; the conductor is closed, and the heat dissipation effect needs to be improved.

CN205318915U discloses multicore cable with collude structure of hanging, including at least two cladded conductor wires and whole multilayer protective structure of suit on each conductor wire of insulating layer, multilayer protective structure includes outer insulation support, shielding layer and inlayer insulation support, and it has the joint concave area that supplies joint spare card to go into to open on the outer insulation support pipe wall, and joint spare free end has colludes the structure of hanging. The hanging is realized through the hook outside the cable,

and the cable radiating effect in the prior art is not ideal enough.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention discloses an overhead cable and an overhead photoelectric composite cable, which are implemented by the following technical solutions.

An aerial cable is provided with a hanging body, a first conductor, a second conductor and a third conductor, and is characterized in that the hanging body is provided with a first tube body, a second tube body and a third tube body, the first tube body, the second tube body and the third tube body are all in a cylindrical shape with an opening, one end of the first tube body, one end of the second tube body and one end of the third tube body are connected together, the other end of the first tube body and the other end of the second tube body are respectively positioned on two sides of one end of the first tube body, the other end of the third tube body is positioned on one side of the second tube body and close to one end of the first tube body, a first opening is formed between the other end of the first tube body and the third tube body, a first conductor hole is formed in the first tube body, a first hanging hole is formed in the inner wall of the first tube body in a surrounding manner, and the first hanging hole is communicated with the first opening; a second opening is formed between the other end of the second tube body and the third tube body, a second conductor hole is formed in the second tube body, a second hanging hole is formed by the inner wall of the second tube body in a surrounding mode, and the second hanging hole is communicated with the second opening; a third opening is formed between the other end of the third pipe body and the second pipe body, a third conductor hole is formed in the third pipe body, a third hanging hole is formed by the inner wall of the third pipe body in a surrounding mode, and the third hanging hole is communicated with the third opening; the second hanging hole is communicated with the third opening; the first conductor is located in the first conductor hole, the second conductor is located in the second conductor hole, and the third conductor is located in the third conductor hole.

An overhead cable has a hanging body, a first conductor, a second conductor, a third conductor, a first transmission line, a second transmission line, and a third transmission line, the hanging body is characterized by comprising a first pipe body, a second pipe body and a third pipe body, wherein the first pipe body, the second pipe body and the third pipe body are all in a cylindrical shape with an opening, one end of the first pipe body, one end of the second pipe body and one end of the third pipe body are connected together, the other end of the first pipe body and the other end of the second pipe body are respectively positioned on two sides of one end of the first pipe body, the other end of the third pipe body is positioned on one side of the second pipe body and close to one end of the first pipe body, a first opening is formed between the other end of the first pipe body and the third pipe body, a first conductor hole is formed in the first pipe body, a first hanging hole is formed by the inner wall of the first pipe body in a surrounding mode, and the first hanging hole is communicated with the first opening; a second opening is formed between the other end of the second tube body and the third tube body, a second conductor hole is formed in the second tube body, a second hanging hole is formed by the inner wall of the second tube body in a surrounding mode, and the second hanging hole is communicated with the second opening; a third opening is formed between the other end of the third pipe body and the second pipe body, a third conductor hole is formed in the third pipe body, a third hanging hole is formed by the inner wall of the third pipe body in a surrounding mode, and the third hanging hole is communicated with the third opening; the second hanging hole is communicated with the third opening; the first conductor is positioned in the first conductor hole, the second conductor is positioned in the second conductor hole, and the third conductor is positioned in the third conductor hole; the first power transmission line is positioned in the first hanging hole, the second power transmission line is positioned in the second hanging hole, and the third power transmission line is positioned in the third hanging hole; the first power line is composed of a first conductor and a first insulating layer coated outside the first conductor, the second power line is composed of a second conductor and a second insulating layer coated outside the second conductor, and the third power line is composed of a third conductor and a third insulating layer coated outside the third conductor.

The materials of the first conductor, the second conductor and the third conductor can be copper or aluminum or alloy, and can be the same or different or partially the same.

The first insulating layer is made of polypropylene or polybutylene terephthalate or low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or low-smoke low-halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

The second insulating layer is made of polypropylene or polybutylene terephthalate or low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or low-smoke low-halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

The third insulating layer is made of polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, TPE or TPU.

An overhead photoelectric composite cable is provided with a hanging body, a first conductor, a second conductor, a third conductor and a light transmission unit, and is characterized in that the hanging body is provided with a first tube body, a second tube body and a third tube body, the first tube body, the second tube body and the third tube body are all in a cylindrical shape with an opening, one end of the first tube body, one end of the second tube body and one end of the third tube body are connected together, the other end of the first tube body and the other end of the second tube body are respectively positioned on two sides of one end of the first tube body, the other end of the third tube body is positioned on one side of the second tube body and close to one end of the first tube body, a first opening is formed between the other end of the first tube body and the third tube body, a first conductor hole is formed in the first tube body, a first hanging hole is formed by enclosing of the inner wall of the first tube body, and is communicated with the first opening; a second opening is formed between the other end of the second tube body and the third tube body, a second conductor hole is formed in the second tube body, a second hanging hole is formed by the inner wall of the second tube body in a surrounding mode, and the second hanging hole is communicated with the second opening; a third opening is formed between the other end of the third pipe body and the second pipe body, a third conductor hole is formed in the third pipe body, a third hanging hole is formed by the inner wall of the third pipe body in a surrounding mode, and the third hanging hole is communicated with the third opening; the second hanging hole is communicated with the third opening; the first conductor is positioned in the first conductor hole, the second conductor is positioned in the second conductor hole, and the third conductor is positioned in the third conductor hole; the light transmission unit is positioned in the third hanging hole; the light transmission unit is composed of a plurality of optical fibers and loose tubes positioned outside the optical fibers.

An overhead photoelectric composite cable is provided with a hanging body, a first conductor, a second conductor, a third conductor and a light transmission unit, and is characterized in that the hanging body is provided with a first tube body, a second tube body and a third tube body, the first tube body, the second tube body and the third tube body are all in a cylindrical shape with an opening, one end of the first tube body, one end of the second tube body and one end of the third tube body are connected together, the other end of the first tube body and the other end of the second tube body are respectively positioned on two sides of one end of the first tube body, the other end of the third tube body is positioned on one side of the second tube body and close to one end of the first tube body, a first opening is formed between the other end of the first tube body and the third tube body, a first conductor hole is formed in the first tube body, a first hanging hole is formed by enclosing of the inner wall of the first tube body, and is communicated with the first opening; a second opening is formed between the other end of the second tube body and the third tube body, a second conductor hole is formed in the second tube body, a second hanging hole is formed by the inner wall of the second tube body in a surrounding mode, and the second hanging hole is communicated with the second opening; a third opening is formed between the other end of the third pipe body and the second pipe body, a third conductor hole is formed in the third pipe body, a third hanging hole is formed by the inner wall of the third pipe body in a surrounding mode, and the third hanging hole is communicated with the third opening; the second hanging hole is communicated with the third opening; the first conductor is positioned in the first conductor hole, the second conductor is positioned in the second conductor hole, and the third conductor is positioned in the third conductor hole; the light transmission unit is positioned in the third hanging hole; the light transmission unit consists of a plurality of optical fibers and loose tubes positioned outside the optical fibers; the first hanging hole is internally provided with a first gasket, the second hanging hole is internally provided with a second gasket, the first gasket is in a circular cylinder shape with an opening, the opening of the first gasket is opposite to the first opening, the second gasket is in a circular cylinder shape with an opening, and the opening of the second gasket is opposite to the second opening.

In this application, the material of first body is polypropylene or polybutylene terephthalate or low density polyethylene or medium density polyethylene or high density polyethylene or low smoke and zero halogen polyethylene or low smoke and low halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

In this application, the material of the second pipe body is polypropylene or polybutylene terephthalate or low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or low smoke low halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

In this application, the material of the third pipe body is polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, or TPE, or TPU.

In this application, the material of the first conductor is copper or aluminum or an alloy.

In this application, the material of the second conductor is copper or aluminum or an alloy.

In this application, the material of the third conductor is copper or aluminum or an alloy.

In this application, the material of the loose tube is polypropylene or polybutylene terephthalate or low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or low smoke low halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

In the application, the type of the optical fiber is G.652, G.653, G.654, G.655, G.656, G.657, A1a, A1b, A1c, A1d, OM1, OM2, OM3 or OM 4.

In this application, the material of the transmission conductor is copper or aluminum or an alloy.

The utility model discloses following main beneficial effect has: the structure is simple, the manufacture is easy, the cost is low, the heat dissipation effect is excellent, the laying speed is high, and the hanging on the overhead line is stable and reliable.

Drawings

Fig. 1 is a schematic perspective view of a dissected section of a reclining body used in the present application.

Fig. 2 is an enlarged cross-sectional structure diagram of fig. 1.

FIG. 3 is a schematic cross-sectional structure of example 1.

FIG. 4 is a schematic cross-sectional structure of example 2.

FIG. 5 is a schematic cross-sectional structure of example 3.

FIG. 6 is a schematic cross-sectional structure of example 4.

Figure 7 is a perspective view of a utility pole for laying according to the present application.

In order that those skilled in the art will more accurately and clearly understand and practice the present application, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which: 1-first tube, 2-second tube, 3-third tube, 10-first hanging hole, 11-first conductor hole, 12-first opening, 20-second hanging hole, 21-second conductor hole, 22-second opening, 30-third hanging hole, 31-third conductor hole, 32-third opening, 41-first conductor, 42-second conductor, 43-third conductor, 51-first transmission line, 52-second transmission line, 53-third transmission line, 61-first gasket, 62-second gasket, 71-loose tube, 72-optical fiber, 81-utility pole, 82-horizontal partition, 91-first overhead line, 92-second overhead line.

Detailed Description

Examples 1

Referring to fig. 1 to 3, an overhead cable includes a hanging body, a first conductor 41, a second conductor 42, and a third conductor 43, wherein the hanging body includes a first tube 1, a second tube 2, and a third tube 3, the first tube 1, the second tube 2, and the third tube 3 are all in a shape of a cylinder with an opening, one end of the first tube 1, one end of the second tube 2, and one end of the third tube 3 are connected together, the other end of the first tube 1 and the other end of the second tube 2 are respectively located at two sides of one end of the first tube 1, the other end of the third tube 3 is located at one side of the second tube 2 and close to one end of the first tube 1, a first opening 12 is provided between the other end of the first tube 1 and the third tube 3, a first conductor hole 11 is provided inside the first tube 1, and a first hanging hole 10 is defined by an inner wall of the first tube 1, the first hanging hole 10 is communicated with the first opening 12; a second opening 22 is formed between the other end of the second pipe body 2 and the third pipe body 3, a second conductor hole 21 is formed in the second pipe body 2, a second hanging hole 20 is formed by the inner wall of the second pipe body 2 in a surrounding mode, and the second hanging hole 20 is communicated with the second opening 22; a third opening 32 is formed between the other end of the third pipe body 3 and the second pipe body 2, a third conductor hole 31 is formed in the third pipe body 3, a third hanging hole 30 is formed by enclosing the inner wall of the third pipe body 3, and the third hanging hole 30 is communicated with the third opening 32; the second hanging hole 20 is communicated with the third opening 32; the first conductor 41 is located in the first conductor hole 11, the second conductor 42 is located in the second conductor hole 21, and the third conductor 43 is located in the third conductor hole 31.

EXAMPLES example 2

Referring to fig. 4 and fig. 1 to 3, an overhead cable includes a hanging body, a first conductor 41, a second conductor 42, a third conductor 43, a first transmission line 51, a second transmission line 52, and a third transmission line 53, wherein the hanging body includes a first tube 1, a second tube 2, and a third tube 3, the first tube 1, the second tube 2, and the third tube 3 are all in a cylindrical shape having an opening, one end of the first tube 1, one end of the second tube 2, and one end of the third tube 3 are connected together, the other end of the first tube 1 and the other end of the second tube 2 are respectively located at two sides of one end of the first tube 1, the other end of the third tube 3 is located at one side of the second tube 2 and close to one end of the first tube 1, a first opening 12 is provided between the other end of the first tube 1 and the third tube 3, a first conductor hole 11 is provided in the first tube 1, the inner wall of the first pipe body 1 is encircled to form a first hanging hole 10, and the first hanging hole 10 is communicated with a first opening 12; a second opening 22 is formed between the other end of the second pipe body 2 and the third pipe body 3, a second conductor hole 21 is formed in the second pipe body 2, a second hanging hole 20 is formed by the inner wall of the second pipe body 2 in a surrounding mode, and the second hanging hole 20 is communicated with the second opening 22; a third opening 32 is formed between the other end of the third pipe body 3 and the second pipe body 2, a third conductor hole 31 is formed in the third pipe body 3, a third hanging hole 30 is formed by enclosing the inner wall of the third pipe body 3, and the third hanging hole 30 is communicated with the third opening 32; the second hanging hole 20 is communicated with the third opening 32; the first conductor 41 is positioned in the first conductor hole 11, the second conductor 42 is positioned in the second conductor hole 21, and the third conductor 43 is positioned in the third conductor hole 31; the first transmission line 51 is positioned in the first hanging hole 10, the second transmission line 52 is positioned in the second hanging hole 20, and the third transmission line 53 is positioned in the third hanging hole 30; the first power line 51 is composed of a first conductor and a first insulating layer covering the first conductor, the second power line 52 is composed of a second conductor and a second insulating layer covering the second conductor, and the third power line 53 is composed of a third conductor and a third insulating layer covering the third conductor.

The materials of the first conductor, the second conductor and the third conductor in the embodiment can be copper or aluminum or alloy, and can be the same or different or partially the same.

The material of the first insulating layer in this embodiment is polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, or TPE.

The material of the second insulating layer in this embodiment is polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, or TPE.

The material of the third insulating layer in this embodiment is polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, or TPE.

EXAMPLE 3

Referring to fig. 5 and fig. 1 to 3, an aerial photoelectric composite cable includes a hanging body, a first conductor 41, a second conductor 42, a third conductor 43, and a light transmission unit, wherein the hanging body includes a first tube 1, a second tube 2, and a third tube 3, the first tube 1, the second tube 2, and the third tube 3 are all in the shape of a cylinder with an opening, one end of the first tube 1, one end of the second tube 2, and one end of the third tube 3 are connected together, the other end of the first tube 1 and the other end of the second tube 2 are respectively located at two sides of one end of the first tube 1, the other end of the third tube 3 is located at one side of the second tube 2 and close to one end of the first tube 1, a first opening 12 is provided between the other end of the first tube 1 and the third tube 3, a first conductor hole 11 is provided inside the first tube 1, the inner wall of the first pipe body 1 is encircled to form a first hanging hole 10, and the first hanging hole 10 is communicated with a first opening 12; a second opening 22 is formed between the other end of the second pipe body 2 and the third pipe body 3, a second conductor hole 21 is formed in the second pipe body 2, a second hanging hole 20 is formed by the inner wall of the second pipe body 2 in a surrounding mode, and the second hanging hole 20 is communicated with the second opening 22; a third opening 32 is formed between the other end of the third pipe body 3 and the second pipe body 2, a third conductor hole 31 is formed in the third pipe body 3, a third hanging hole 30 is formed by enclosing the inner wall of the third pipe body 3, and the third hanging hole 30 is communicated with the third opening 32; the second hanging hole 20 is communicated with the third opening 32; the first conductor 41 is positioned in the first conductor hole 11, the second conductor 42 is positioned in the second conductor hole 21, and the third conductor 43 is positioned in the third conductor hole 31; the light transmission unit is positioned in the third hanging hole 30; the light transmission unit is composed of a plurality of optical fibers 72 and a loose tube 71 outside the optical fibers.

EXAMPLE 4

Referring to fig. 6 and fig. 1 to 3, an aerial photoelectric composite cable includes a hanging body, a first conductor 41, a second conductor 42, a third conductor 43, and a light transmission unit, wherein the hanging body includes a first tube 1, a second tube 2, and a third tube 3, the first tube 1, the second tube 2, and the third tube 3 are all in the shape of a cylinder with an opening, one end of the first tube 1, one end of the second tube 2, and one end of the third tube 3 are connected together, the other end of the first tube 1 and the other end of the second tube 2 are respectively located at two sides of one end of the first tube 1, the other end of the third tube 3 is located at one side of the second tube 2 and close to one end of the first tube 1, a first opening 12 is provided between the other end of the first tube 1 and the third tube 3, a first conductor hole 11 is provided inside the first tube 1, the inner wall of the first pipe body 1 is encircled to form a first hanging hole 10, and the first hanging hole 10 is communicated with a first opening 12; a second opening 22 is formed between the other end of the second pipe body 2 and the third pipe body 3, a second conductor hole 21 is formed in the second pipe body 2, a second hanging hole 20 is formed by the inner wall of the second pipe body 2 in a surrounding mode, and the second hanging hole 20 is communicated with the second opening 22; a third opening 32 is formed between the other end of the third pipe body 3 and the second pipe body 2, a third conductor hole 31 is formed in the third pipe body 3, a third hanging hole 30 is formed by enclosing the inner wall of the third pipe body 3, and the third hanging hole 30 is communicated with the third opening 32; the second hanging hole 20 is communicated with the third opening 32; the first conductor 41 is positioned in the first conductor hole 11, the second conductor 42 is positioned in the second conductor hole 21, and the third conductor 43 is positioned in the third conductor hole 31; the light transmission unit is positioned in the third hanging hole 30; the light transmission unit consists of a plurality of optical fibers 72 and loose tubes 71 positioned outside the optical fibers; the first hanging hole 10 has a first washer 61 therein, the second hanging hole 20 has a second washer 62 therein, the first washer 61 is in the shape of a circular cylinder having an opening, the opening of the first washer 61 is opposite to the first opening 12, the second washer 62 is in the shape of a circular cylinder having an opening, and the opening of the second washer 62 is opposite to the second opening 22.

Referring to fig. 7, in the prior art, a plurality of parallel erected utility poles 81 have their tips 82, and first and

second overhead lines

91, 92 are arranged in parallel on the tips 82, and in the use of the

embodiments

1, 3 of the present application, referring to fig. 7, the first opening 12 is hung on the second overhead line 92 and forcibly inserted into the first hanging hole 10, and the second opening 22 is hung on the first overhead line 91 and forcibly inserted into the second hanging hole 20, so that the utility poles are hung on the utility poles by pressing the present application downward, and the present application is not popped up due to the existence of the first and second openings, and is not popped up and dropped out in the case of blowing, vibration, and waving. Embodiment example 4 in use, the first gasket and the second gasket greatly reduce the friction loss of the first pipe and the second pipe.

In this application, the body of leaning on formula structure as an organic whole.

In the present application, the attachment body is integrally formed.

In the present application, the first gasket has elasticity, and the material is plastic or metal.

In the present application, the second gasket has elasticity, and the material is plastic or metal.

In the application, the tube body is directly contacted with air, so that heat can be dissipated more quickly; in addition, the hanging holes also greatly improve the heat dissipation effect; the hanging hole is communicated with the opening, so that heat can be discharged, and heat exchange can be carried out with the outside, and the heat dissipation effect is greatly improved compared with the prior art.

The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be construed as limitations of the present invention. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. An aerial cable is provided with a hanging body, a first conductor (41), a second conductor (42) and a third conductor (43), and is characterized in that the hanging body is provided with a first tube body (1), a second tube body (2) and a third tube body (3), the first tube body (1), the second tube body (2) and the third tube body (3) are all in a cylindrical shape with an opening, one end of the first tube body (1), one end of the second tube body (2) and one end of the third tube body (3) are connected together, the other end of the first tube body (1) and the other end of the second tube body (2) are respectively positioned on two sides of one end of the first tube body (1), the other end of the third tube body (3) is positioned on one side of the second tube body (2) and is close to one end of the first tube body (1), a first opening (12) is arranged between the other end of the first tube body (1) and the third tube body (3), a first conductor hole (11) is formed in the first pipe body (1), a first hanging hole (10) is formed by enclosing the inner wall of the first pipe body (1), and the first hanging hole (10) is communicated with the first opening (12); a second opening (22) is formed between the other end of the second pipe body (2) and the third pipe body (3), a second conductor hole (21) is formed in the second pipe body (2), a second hanging hole (20) is formed by the inner wall of the second pipe body (2) in a surrounding mode, and the second hanging hole (20) is communicated with the second opening (22); a third opening (32) is formed between the other end of the third pipe body (3) and the second pipe body (2), a third conductor hole (31) is formed in the third pipe body (3), a third hanging hole (30) is formed by the inner wall of the third pipe body (3) in a surrounding mode, and the third hanging hole (30) is communicated with the third opening (32); the second hanging hole (20) is communicated with the third opening (32); the first conductor (41) is located in the first conductor hole (11), the second conductor (42) is located in the second conductor hole (21), and the third conductor (43) is located in the third conductor hole (31).

2. An overhead cable is provided with a hanging body, a first conductor (41), a second conductor (42), a third conductor (43), a first transmission line (51), a second transmission line (52) and a third transmission line (53), and is characterized in that the hanging body is provided with a first tube body (1), a second tube body (2) and a third tube body (3), the first tube body (1), the second tube body (2) and the third tube body (3) are all in a cylindrical shape with an opening, one end of the first tube body (1), one end of the second tube body (2) and one end of the third tube body (3) are connected together, the other end of the first tube body (1) and the other end of the second tube body (2) are respectively positioned at two sides of one end of the first tube body (1), the other end of the third tube body (3) is positioned at one side of the second tube body (2) and is close to one end of the first tube body (1), a first opening (12) is formed between the other end of the first pipe body (1) and the third pipe body (3), a first conductor hole (11) is formed in the first pipe body (1), a first hanging hole (10) is formed by enclosing the inner wall of the first pipe body (1), and the first hanging hole (10) is communicated with the first opening (12); a second opening (22) is formed between the other end of the second pipe body (2) and the third pipe body (3), a second conductor hole (21) is formed in the second pipe body (2), a second hanging hole (20) is formed by the inner wall of the second pipe body (2) in a surrounding mode, and the second hanging hole (20) is communicated with the second opening (22); a third opening (32) is formed between the other end of the third pipe body (3) and the second pipe body (2), a third conductor hole (31) is formed in the third pipe body (3), a third hanging hole (30) is formed by the inner wall of the third pipe body (3) in a surrounding mode, and the third hanging hole (30) is communicated with the third opening (32); the second hanging hole (20) is communicated with the third opening (32); a first conductor (41) is located in the first conductor hole (11), a second conductor (42) is located in the second conductor hole (21), and a third conductor (43) is located in the third conductor hole (31); the first power line (51) is positioned in the first hanging hole (10), the second power line (52) is positioned in the second hanging hole (20), and the third power line (53) is positioned in the third hanging hole (30); the first power line (51) is composed of a first conductor and a first insulating layer covering the first conductor, the second power line (52) is composed of a second conductor and a second insulating layer covering the second conductor, and the third power line (53) is composed of a third conductor and a third insulating layer covering the third conductor.

3. An overhead cable as claimed in claim 2, wherein the first, second and third conductors are made of copper or aluminium or an alloy thereof.

4. An overhead cable as claimed in claim 2, wherein the first insulating layer is made of polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, TPE or TPU.

5. An overhead cable as claimed in claim 2, wherein the material of the second insulating layer is polypropylene or polybutylene terephthalate or low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or low smoke low halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

6. An overhead cable as claimed in claim 2, wherein the third insulating layer is made of polypropylene, polybutylene terephthalate, low-density polyethylene, medium-density polyethylene, high-density polyethylene, low-smoke halogen-free polyethylene, low-smoke low-halogen polyethylene, polyvinyl chloride, nylon, polytetrafluoroethylene, TPE or TPU.

7. An overhead photoelectric composite cable comprises a hanging body, a first conductor (41), a second conductor (42), a third conductor (43) and a light transmission unit, and is characterized in that the hanging body comprises a first tube body (1), a second tube body (2) and a third tube body (3), the first tube body (1), the second tube body (2) and the third tube body (3) are all in a cylindrical shape with an opening, one end of the first tube body (1), one end of the second tube body (2) and one end of the third tube body (3) are connected together, the other end of the first tube body (1) and the other end of the second tube body (2) are respectively positioned on two sides of one end of the first tube body (1), the other end of the third tube body (3) is positioned on one side of the second tube body (2) and is close to one end of the first tube body (1), a first opening (12) is arranged between the other end of the first tube body (1) and the third tube body (3), a first conductor hole (11) is formed in the first pipe body (1), a first hanging hole (10) is formed by enclosing the inner wall of the first pipe body (1), and the first hanging hole (10) is communicated with the first opening (12); a second opening (22) is formed between the other end of the second pipe body (2) and the third pipe body (3), a second conductor hole (21) is formed in the second pipe body (2), a second hanging hole (20) is formed by the inner wall of the second pipe body (2) in a surrounding mode, and the second hanging hole (20) is communicated with the second opening (22); a third opening (32) is formed between the other end of the third pipe body (3) and the second pipe body (2), a third conductor hole (31) is formed in the third pipe body (3), a third hanging hole (30) is formed by the inner wall of the third pipe body (3) in a surrounding mode, and the third hanging hole (30) is communicated with the third opening (32); the second hanging hole (20) is communicated with the third opening (32); a first conductor (41) is located in the first conductor hole (11), a second conductor (42) is located in the second conductor hole (21), and a third conductor (43) is located in the third conductor hole (31); the light transmission unit is positioned in the third hanging hole (30); the light transmission unit is composed of a plurality of optical fibers (72) and loose tubes (71) positioned outside the optical fibers.

8. An overhead photoelectric composite cable comprises a hanging body, a first conductor (41), a second conductor (42), a third conductor (43) and a light transmission unit, and is characterized in that the hanging body comprises a first tube body (1), a second tube body (2) and a third tube body (3), the first tube body (1), the second tube body (2) and the third tube body (3) are all in a cylindrical shape with an opening, one end of the first tube body (1), one end of the second tube body (2) and one end of the third tube body (3) are connected together, the other end of the first tube body (1) and the other end of the second tube body (2) are respectively positioned on two sides of one end of the first tube body (1), the other end of the third tube body (3) is positioned on one side of the second tube body (2) and is close to one end of the first tube body (1), a first opening (12) is arranged between the other end of the first tube body (1) and the third tube body (3), a first conductor hole (11) is formed in the first pipe body (1), a first hanging hole (10) is formed by enclosing the inner wall of the first pipe body (1), and the first hanging hole (10) is communicated with the first opening (12); a second opening (22) is formed between the other end of the second pipe body (2) and the third pipe body (3), a second conductor hole (21) is formed in the second pipe body (2), a second hanging hole (20) is formed by the inner wall of the second pipe body (2) in a surrounding mode, and the second hanging hole (20) is communicated with the second opening (22); a third opening (32) is formed between the other end of the third pipe body (3) and the second pipe body (2), a third conductor hole (31) is formed in the third pipe body (3), a third hanging hole (30) is formed by the inner wall of the third pipe body (3) in a surrounding mode, and the third hanging hole (30) is communicated with the third opening (32); the second hanging hole (20) is communicated with the third opening (32); a first conductor (41) is located in the first conductor hole (11), a second conductor (42) is located in the second conductor hole (21), and a third conductor (43) is located in the third conductor hole (31); the light transmission unit is positioned in the third hanging hole (30); the light transmission unit consists of a plurality of optical fibers (72) and loose tubes (71) positioned outside the optical fibers; the first hanging hole (10) is internally provided with a first gasket (61), the second hanging hole (20) is internally provided with a second gasket (62), the first gasket (61) is in a circular cylinder shape with an opening, the opening of the first gasket (61) is opposite to the first opening (12), the second gasket (62) is in a circular cylinder shape with an opening, and the opening of the second gasket (62) is opposite to the second opening (22).

9. An aerial photoelectric composite cable according to claim 8, wherein the material of the loose tube is polypropylene or polybutylene terephthalate or low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or low smoke low halogen polyethylene or polyvinyl chloride or nylon or polytetrafluoroethylene or TPE or TPU.

10. An aerial photoelectric composite cable as claimed in claim 8, wherein the optical fibres are of the type g.652 or g.653 or g.654 or g.655 or g.656 or g.657 or A1a or A1b or A1c or A1d or OM1 or OM2 or OM3 or OM 4.