Overhead insulated wire

Abstract

The utility model relates to the technical field of overhead insulated conductors, in particular to an overhead insulated conductor, which is provided with a twisted steel wire, so that an outer protective layer of the conductor can be conveniently disassembled in the using process of the overhead insulated conductor, the conductor is convenient to connect and maintain, and the structural strength can also be improved. Comprising multiple groups of conductors; the cable further comprises a rubber layer, a shielding layer, a first insulating layer, three sets of sheaths, three sets of second insulating layers and three sets of twisted steel wires, the shielding layer is located in the rubber layer, the first insulating layer is located in the rubber layer, the three sets of sheaths are located in the first insulating layer, one set of second insulating layer is arranged in each set of sheath, multiple sets of conductors are arranged in each set of second insulating layer, and the three sets of twisted steel wires are located in the rubber layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of overhead insulated conductor, particularly to an overhead insulated conductor. BACKGROUND

[0002] The overhead insulated conductor is a kind of conductor by single layer or multiple layer aluminum strand stranding, and extruding insulation layer on it.This kind of conductor is usually used in urban distribution, has many unique advantages and specific application scenarios.

[0003] In the existing overhead insulated conductor, for example, the utility model patent of a kind of overhead insulated conductor in the application No.200720098596.9 is disclosed, the effect of the utility model is to use the water-blocking overhead insulated conductor of the structure, change the phenomenon of moisture accumulation at the nadir of the insulated conductor, thus avoiding the emergence of the problem of oxidation corrosion of overhead insulated conductor, reducing the maintenance cost of line, prolonging the service life of overhead insulated conductor.The utility model is suitable for rated voltage 1kV, 10kV and 35kV overhead insulated conductor, also suitable for overhead insulated conductor without reinforcing core.

[0004] But in the use process of overhead insulated conductor, the connection between each section of conductor is needed, so the conductor inside needs to be disassembled and exposed for convenient connection. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides an overhead insulated conductor by setting torsion steel wire, so that the outer protective layer of the overhead insulated conductor can be conveniently disassembled in the use process, the connection and maintenance of the conductor are facilitated, and the structural strength can be improved.

[0006] The utility model discloses an overhead insulated conductor, which comprises a plurality of conductors, a rubber layer, a shielding layer, an insulation layer one, three sheaths, three insulation layers two and three torsion steel wires.

[0007] Preferably, the rubber layer comprises two layers, the outer layer adopts relatively thick coating, and the inner layer is relatively thin coating; the whole conductor is protected by the rubber layer.

[0008] Preferably, the shielding layer is usually made of metal mesh or metal foil, and is wrapped in the two rubber layers; the electromagnetic interference is reduced or the lightning protection performance of the conductor is improved.

[0009] Preferably, the insulation layer one is filled in the rubber layer, and the three groups of insulation layer two are located in the insulation layer one; the insulation layer one and the insulation layer two are usually made of polyethylene, cross-linked polyethylene and other synthetic materials; the insulation layer one and the insulation layer two have good electrical insulation performance and mechanical strength, and prevent the current from leaking to the ground or adjacent conductors through air or other media.

[0010] Preferably, the sheath is made of materials with strong weather resistance, such as polyvinyl chloride and polyethylene, and is wrapped and installed on the insulation layer two and located in the insulation layer one; the sheath increases the durability of the conductor and protects the insulation layer two from physical damage.

[0011] Preferably, the conductor is located in the insulation layer two and is usually made of metal with high electrical conductivity; the conductor is used for power supply and conduction.

[0012] Preferably, the twisted steel wires are located between the insulation layer one and the rubber layer, and the twisted steel wires are provided with thimbles; the twisted steel wires are hooked through the thimbles; the twisted steel wires provide the conductor with ductility and structural rigidity, provide further protection, and are easier to be disassembled by tearing the rubber layer and the shielding layer after the twisted steel wires are pulled and torn, facilitate the connection and installation of the conductor, and make the disassembly be segmented and quantified through the hooking between the thimbles.

[0013] Compared with the prior art, the utility model has the beneficial effects that: the conductor is used for power supply and conduction, the conductor is protected through the cooperation between the rubber layer, the shielding layer, the insulation layer one, the sheath and the insulation layer two, the conductor is convenient to be disassembled in segments through the twisted steel wires, so that in the use process of the overhead insulated conductor, the outer protective layer of the conductor can be conveniently disassembled, the connection and maintenance of the conductor are facilitated, and the structural strength can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the axonometric structure schematic diagram of the utility model;

[0015] Figure 2 is the partial section axonometric structure schematic diagram of the utility model;

[0016] Figure 3 is the right view section axonometric structure schematic diagram of the utility model;

[0017] Figure 4 is the partial section axonometric enlarged structure schematic diagram of the utility model in Figure 2 ; is the twisted steel wire of the utility model in ; is the twisted steel wire of the utility model in

[0018] ; is the twisted steel wire of the utility model in Figure 5 ; is the twisted steel wire of the utility model in Figure 3Axonometric enlarged structural schematic diagram of the right view section of the central B part;

[0019] The following labels are used in the attached diagram: 1. Rubber layer; 2. Shielding layer; 3. Insulation layer one; 4. Sheath; 5. Insulation layer two; 6. Conductor; 7. Twisted steel wire; 71. Collar. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example 1

[0022] like Figures 1 to 5 As shown, an overhead insulated conductor includes multiple sets of conductors 6, as well as a rubber layer 1, a shielding layer 2, an insulation layer 3, three sets of sheaths 4, three sets of insulation layers 5, and three sets of twisted steel wires 7. The shielding layer 2 is located inside the rubber layer 1, the insulation layer 3 is located inside the rubber layer 1, the three sets of sheaths 4 are located inside the insulation layer 3, each set of sheaths 4 contains one set of insulation layers 5, each set of insulation layers 5 contains multiple sets of conductors 6, and the three sets of twisted steel wires 7 are located inside the rubber layer 1.

[0023] The rubber layer 1 consists of two layers: a thicker outer layer and a thinner inner layer.

[0024] The shielding layer 2 is usually made of metal mesh or metal foil, and the shielding layer 2 is wrapped inside two rubber layers 1;

[0025] Insulation layer 3 is filled inside rubber layer 1, and three sets of insulation layers 5 are located inside insulation layer 3. Insulation layer 3 and insulation layer 5 are usually made of polyethylene, cross-linked polyethylene and other synthetic materials.

[0026] The sheath 4 is made of a weather-resistant material, such as polyvinyl chloride and polyethylene. The sheath 4 is installed on the second insulation layer 5 and is located inside the first insulation layer 3.

[0027] Conductor 6 is located within insulating layer 2 5 and is typically made of a highly conductive metal;

[0028] The twisted steel wire 7 is located between the insulation layer 3 and the rubber layer 1. A collar 71 is provided on the twisted steel wire 7, and multiple sets of twisted steel wires 7 are hooked together by the collar 71.

[0029] The conductor 6 is used for conducting electricity, the rubber layer 1 is used for protecting the whole conductor, the shielding layer 2 is used for reducing electromagnetic interference or improving lightning protection performance of the conductor, the insulation layer one 3 and the insulation layer two 5 have good electrical insulation performance and mechanical strength, current leakage to the ground or adjacent conductors through air or other media is prevented, the sheath 4 is used for increasing durability of the conductor and protecting the insulation layer two 5 from physical damage, the twisted steel wire 7 is used for providing ductility and structural rigidity of the conductor, further protection is provided, the rubber layer 1 and the shielding layer 2 are more easily disassembled after being torn and broken by pulling the twisted steel wire 7, the conductor is conveniently connected and installed, and the disassembly can be segmented and quantified by hooking between the sleeve rings 71, so that the outer protective layer of the overhead insulated conductor can be conveniently disassembled during use of the overhead insulated conductor, the conductor is conveniently connected and maintained, and the structural strength is improved.

[0030] As Figures 1 to 5 shown, the overhead insulated conductor is used for conducting electricity through the conductor 6, protecting the whole conductor through the rubber layer 1, reducing electromagnetic interference or improving lightning protection performance of the conductor through the shielding layer 2, preventing current leakage to the ground or adjacent conductors through air or other media through the insulation layer one 3 and the insulation layer two 5 having good electrical insulation performance and mechanical strength, increasing durability of the conductor and protecting the insulation layer two 5 from physical damage through the sheath 4, providing ductility and structural rigidity of the conductor through the twisted steel wire 7, providing further protection, more easily disassembling the rubber layer 1 and the shielding layer 2 after being torn and broken by pulling the twisted steel wire 7, conveniently connecting and installing the conductor, and performing segmented and quantitative disassembly by hooking between the sleeve rings 71.

[0031] The main function of the utility model is realized: in the working process of the overhead insulated conductor, the twisted steel wire is arranged, so that the outer protective layer of the overhead insulated conductor can be conveniently disassembled during use of the overhead insulated conductor, the conductor is conveniently connected and maintained, and the structural strength is improved.

[0032] The preferred embodiments of the utility model are described above, and it should be noted that, for ordinary skilled persons in the technical field, some improvements and modifications can be made without departing from the technical principles of the utility model, and these improvements and modifications should be regarded as the protection scope of the utility model.

Claims

1. An aerial insulated conductor comprising a plurality of sets of conductors (6); characterized in that, It also includes rubber layer (1), shielding layer (2), insulation layer one (3), three sets of sheath (4), three sets of insulation layer two (5) and three sets of twisted steel wire (7), shielding layer (2) is located in rubber layer (1), insulation layer one (3) is located in rubber layer (1), three sets of sheath (4) are located in insulation layer one (3), each set of sheath (4) has a set of insulation layer two (5) in it, each set of insulation layer two (5) has a plurality of groups of conductors (6) in it, and three sets of twisted steel wire (7) are located in rubber layer (1).

2. An aerial insulated conductor as defined in claim 1, wherein, The rubber layer (1) comprises two layers, the outer layer adopts thicker coating, and the inner layer is thinner coating.

3. An aerial insulated conductor as defined in Claim 2, wherein, The shielding layer (2) is usually made of metal mesh or metal foil, and the shielding layer (2) is coated in the two-layer rubber layer (1).

4. An aerial insulated conductor as defined in Claim 3, wherein, The insulation layer one (3) is filled in the rubber layer (1), the three sets of insulation layer two (5) are located in the insulation layer one (3), and the insulation layer one (3) and the insulation layer two (5) are usually made of polyethylene, cross-linked polyethylene and other synthetic materials.

5. An aerial insulated conductor as defined in claim 4, wherein, The sheath (4) is made of strong weather-resistant materials such as polyvinyl chloride and polyethylene, the sheath (4) is coated and installed on the insulation layer two (5), and the sheath (4) is located in the insulation layer one (3).

6. An aerial insulated conductor as defined in Claim 5, wherein, The conductor (6) is located in the insulation layer two (5) and is usually made of high-conductivity metal.

7. An aerial insulated conductor as defined in claim 6, wherein, The twisted steel wire (7) is located between the insulation layer one (3) and the rubber layer (1), the twisted steel wire (7) is provided with a thimble (71), and a plurality of groups of twisted steel wires (7) are hooked through the thimble (71).

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