Aerial insulated cable

Abstract

The utility model relates to the technical field of cables, and provides an aerial insulated cable, which comprises a conductor, a micropore belt, an insulating layer, a cable core, an aluminum foil layer, a shielding layer and a sheath, the conductor is made of high-conductivity metal copper, the micropore belt is wrapped outside the conductor, the insulating layer is arranged outside the micropore belt, and the aluminum foil layer is arranged outside the shielding layer. The cable core is formed by twisting a plurality of conductors, the aluminum foil layer wraps the cable core, the shielding layer is located on the outer side of the aluminum foil layer, the sheath is arranged on the outer wall of the shielding layer, and the micropore belt is provided with tiny holes and used for uniformizing an electric field and reducing the intensity of the electric field. According to the utility model, the insulation performance, weather resistance, electromagnetic shielding performance and the like are all obviously improved, and high requirements of modern power systems on cable performance can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an overhead insulated cable. Background Art

[0002] With the continuous development of power systems, overhead cables, as an important way of power transmission, their performance and quality directly affect the stability and safety of the power system.

[0003] Traditional overhead cables have deficiencies in insulation performance, weather resistance, and UV resistance, making it difficult to meet the high requirements of modern power systems for cable performance. Therefore, designing an overhead insulated cable with excellent insulation performance, weather resistance, and UV resistance has become an important research direction in the current cable technology field. Utility Model Content

[0004] In view of the above problems, the utility model provides an overhead insulated cable.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is:

[0006] An overhead insulated cable comprises a conductor, a microporous tape, an insulating layer, a cable core, an aluminum foil layer, a shielding layer and a sheath, wherein the conductor is made of high-conductivity copper metal, the microporous tape is wrapped around the outside of the conductor, the insulating layer is located on the outside of the microporous tape, the cable core is formed by twisting a plurality of conductors, the aluminum foil layer is wrapped around the outside of the cable core, the shielding layer is located on the outside of the aluminum foil layer, and the sheath is arranged on the outer wall of the shielding layer.

[0007] Preferably, the microporous belt has tiny holes for making the electric field uniform and reducing the electric field strength.

[0008] Preferably, the insulating layer is made of high temperature resistant polyetheretherketone material.

[0009] Preferably, the aluminum foil layer is used for electromagnetic shielding to reduce the influence of external electromagnetic interference on the cable transmission signal.

[0010] Preferably, the shielding layer is made of metal material to further enhance the electromagnetic shielding performance of the cable.

[0011] Preferably, the sheath is made of UV-resistant polymethyl methacrylate material.

[0012] The beneficial effects of the utility model are:

[0013] 1. The overhead insulated cables have been optimized and innovated in structural design and material selection, which has significantly improved their insulation performance, weather resistance, electromagnetic shielding performance, etc., and can meet the high requirements of modern power systems for cable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the internal cross-sectional structure diagram of the utility model;

[0015] In the figure: 1 conductor, 2 microporous tape, 3 insulation layer, 4 cable core, 5 aluminum foil layer, 6 shielding layer, 7 sheath. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] Reference Figure 1An overhead insulated cable comprises a conductor 1, a microporous tape 2, an insulating layer 3, a cable core 4, an aluminum foil layer 5, a shielding layer 6 and a sheath 7. The conductor 1 is made of metal copper with high conductivity. The microporous tape 2 is wrapped around the outside of the conductor 1. The insulating layer 3 is located on the outside of the microporous tape 2. The cable core 4 is formed by twisting multiple conductors 1. The aluminum foil layer 5 is wrapped around the outside of the cable core 4. The shielding layer 6 is located on the outside of the aluminum foil layer 5. The sheath 7 is arranged on the outer wall of the shielding layer 6.

[0020] Furthermore, the microporous belt 2 has tiny holes for making the electric field uniform and reducing the electric field strength.

[0021] Furthermore, the insulating layer 3 is made of high temperature resistant polyetheretherketone material.

[0022] Furthermore, the aluminum foil layer 5 is used for electromagnetic shielding to reduce the influence of external electromagnetic interference on the cable transmission signal.

[0023] Furthermore, the shielding layer 6 is made of metal material to further enhance the electromagnetic shielding performance of the cable.

[0024] Furthermore, the sheath is made of UV-resistant polymethyl methacrylate material.

[0025] To sum up, the overhead insulated cable of this scheme has been optimized and innovated in structural design and material selection, so that its insulation performance, weather resistance, electromagnetic shielding performance, etc. have been significantly improved, and can meet the high requirements of modern power systems for cable performance.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An overhead insulated cable, characterized in that: The cable comprises a conductor (1), a microporous tape (2), an insulating layer (3), a cable core (4), an aluminum foil layer (5), a shielding layer (6) and a sheath (7); the conductor (1) is made of high-conductivity copper metal; the microporous tape (2) is wrapped around the outside of the conductor (1); the insulating layer (3) is located on the outside of the microporous tape (2); the cable core (4) is formed by twisting a plurality of conductors (1); the aluminum foil layer (5) is wrapped around the outside of the cable core (4); the shielding layer (6) is located on the outside of the aluminum foil layer (5); and the sheath (7) is arranged on the outer wall of the shielding layer (6).

2. An overhead insulated cable according to claim 1, characterized in that: The microporous belt (2) has tiny holes, which are used to make the electric field uniform and reduce the intensity of the electric field.

3. An overhead insulated cable according to claim 1, characterized in that: The insulating layer (3) is made of high-temperature resistant polyetheretherketone material.

4. An overhead insulated cable according to claim 1, characterized in that: The aluminum foil layer (5) is used for electromagnetic shielding to reduce the influence of external electromagnetic interference on the cable transmission signal.

5. An overhead insulated cable according to claim 1, characterized in that: The shielding layer (6) is made of metal material, which further enhances the electromagnetic shielding performance of the cable.

6. An overhead insulated cable according to claim 1, characterized in that: The sheath (7) is made of ultraviolet resistant polymethyl methacrylate material.

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