Crosslinked polyethylene insulated cable for smart power grid

Abstract

The utility model relates to the field of insulated cables, in particular to a crosslinked polyethylene insulated cable for an intelligent power grid, which comprises a conductor cable core, a reinforcing layer is arranged outside the conductor cable core, and a protective layer is arranged outside the reinforcing layer. Braid layers are uniformly distributed outside the protective layer, a connecting layer is arranged between each pair of braid layers, an insulating sheath is arranged outside the braid layers, the reinforcing layer is filled with a filling layer, and the filling layer is in extrusion contact with the conductor cable core. According to the utility model, when the cable is installed, the reinforcing layer is arranged inside the insulating sheath, so that the conductor cable core and the copper conductor cable core can bear an external force thicker, the stability of the cable is ensured, and through the wrapping of the external ethylene propylene rubber insulating sleeve and the crosslinked polyethylene insulating layer, the insulating property of the whole cable is good, and the service life of the cable is prolonged. And the adaptability is high, and installation and connection are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of insulated cable technology, and in particular to a cross-linked polyethylene insulated cable for smart grids. Background Technology

[0002] Wires and cables are wire products used to transmit electrical (magnetic) energy, information, and realize the conversion of electromagnetic energy. In a broad sense, wires and cables are also simply called cables. In a narrow sense, a cable refers to an insulated cable, which can be defined as: an assembly consisting of one or more insulated cores, and their respective possible sheaths, overall protective layer, and outer sheath. Cables may also have additional uninsulated conductors. With the rapid development of the communications industry, cables have evolved from simple telephone and telegraph cables to multi-pair telephone cables, coaxial cables, optical cables, data cables, and even composite communication cables. These products typically have small and uniform dimensions and require high manufacturing precision.

[0003] When smart grids use cables for wiring, they typically use insulated cables for efficient connections. However, existing cables often have poor insulation, making connection difficult and resulting in poor compatibility during installation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cross-linked polyethylene insulated cable for smart grids.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cross-linked polyethylene insulated cable for smart grids includes a conductor core, a reinforcing layer is provided on the outside of the conductor core, and a protective layer is provided on the outside of the reinforcing layer.

[0007] The protective layer is uniformly provided with braided layers on its outer surface, and a connecting layer is provided between each pair of braided layers. The braided layers are provided with an insulating outer sheath, and the reinforcing layer is filled with a filling layer, which is in contact with the conductor cable core by compression.

[0008] Furthermore, in a preferred configuration, an ethylene propylene rubber insulating sleeve is disposed inside the reinforcing layer, and the ethylene propylene rubber insulating sleeve is in compression contact with the reinforcing layer.

[0009] Furthermore, in a preferred configuration, the outer surface of the conductor core is provided with a silver-plated copper conductor, and the outer surface of the silver-plated copper conductor is uniformly provided with a tin-plated copper conductor, with a braided layer provided between the tin-plated copper conductors.

[0010] Furthermore, in a preferred configuration, a copper conductor core is disposed inside the conductor core, and the copper conductor core is in contact with the conductor core and the filling layer inside the reinforcing layer by compression.

[0011] Furthermore, in a preferred configuration, a cross-linked polyethylene insulation layer is provided between the reinforcing layer and the protective layer, and the cross-linked polyethylene insulation layer is in extrusion contact with the internal tin-plated copper conductor.

[0012] Furthermore, in a preferred configuration, the conductor core, tin-plated copper conductor, and silver-plated copper conductor are uniformly distributed, and the connecting layer is compatible with the external insulating sheath.

[0013] The beneficial effects of this utility model are as follows: When installing cables, by setting a reinforcing layer inside the insulation sheath, the conductor core and copper conductor core can withstand external forces more effectively, ensuring the stability of the cable. Furthermore, the outer ethylene propylene rubber insulation sleeve and cross-linked polyethylene insulation layer ensure good overall cable insulation, high adaptability, and easy installation and connection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a cross-linked polyethylene insulated cable for smart grids proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the polyethylene insulated cable proposed in this utility model;

[0016] Figure 3 This is a cross-sectional view of the polyethylene insulated cable proposed in this utility model.

[0017] In the diagram: 1. Insulating outer sheath; 2. Protective layer; 21. Braided layer; 22. Connecting layer; 3. Reinforcing layer; 4. Ethylene propylene rubber insulating sleeve; 5. Conductor core; 6. Cross-linked polyethylene insulation layer; 7. Tin-plated copper conductor; 8. Silver-plated copper conductor; 9. Filler layer; 10. Copper conductor core. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-3 A cross-linked polyethylene insulated cable for smart grids includes a conductor core 5, a reinforcing layer 3 is provided on the outside of the conductor core 5, and a protective layer 2 is provided on the outside of the reinforcing layer 3.

[0020] The outer surface of the protective layer 2 is uniformly provided with braided layers 21, and a connecting layer 22 is provided between each pair of braided layers 21. The outer surface of the braided layers 21 is provided with an insulating outer sheath 1, and the interior of the reinforcing layer 3 is filled with a filling layer 9, which is pressed into contact with the conductor cable core 5.

[0021] The reinforcing layer 3 has an ethylene propylene rubber insulating sleeve 4 inside, which is pressed and contacted with the reinforcing layer 3. The reinforcing layer 3 can effectively make the inside of the cable more compact.

[0022] Meanwhile, the conductor core 5 is provided with a silver-plated copper conductor 8 on its outside, and a tin-plated copper conductor 7 is uniformly provided on the outside of the silver-plated copper conductor 8. A braided layer 21 is also provided between the tin-plated copper conductors 7, and the braided layer 21 can be connected more tightly.

[0023] In addition, a copper conductor core 10 is provided inside the conductor core 5, and the copper conductor core 10 is in contact with the conductor core 5 and the filling layer 9 inside the reinforcing layer 3.

[0024] Furthermore, a cross-linked polyethylene insulation layer 6 is provided between the reinforcing layer 3 and the protective layer 2, and the cross-linked polyethylene insulation layer 6 is in contact with the internal tin-plated copper conductor 7 by compression.

[0025] Moreover, the conductor core 5, the tin-plated copper conductor 7, and the silver-plated copper conductor 8 are evenly distributed, and the connecting layer 22 is compatible with the externally connected insulating outer sheath 1, so that the insulating outer sheath 1 can effectively provide insulation.

[0026] In this embodiment, high-strength insulated cables are used to assemble the smart grid. During the assembly, the conductor core 5 needs to be inserted into the reinforcing layer 3, and then the copper conductor core 10 is inserted into the uniformly distributed conductor core 5.

[0027] During the installation process, an insulating material is filled inside the reinforcing layer 3, so that the insulating material is pressed into contact with the copper conductor cable core 10 and the conductor cable core 5 inside the reinforcing layer 3, so that they are fixed in a certain position. A protective layer 2 is sleeved on the outside of the reinforcing layer 3, and a braided layer 21 is set on the outside of the protective layer 2. Tin-plated copper conductors 7 are set between the braided layers 21.

[0028] Furthermore, a connecting layer 22 is provided between the outer braided layers 21 of the protective layer 2, and the connecting layer is stably connected to the outer insulating sheath 1. A cross-linked polyethylene insulation layer 6 is provided between the inner part of the reinforcing layer 3 and the braided layers 21, and the cross-linked polyethylene insulation layer 6 is connected to the tin-plated copper conductor 7, and wraps the inner copper conductor core 10 and conductor core 5, so that the cable has good insulation.

[0029] In this utility model, when installing the cable, by setting a reinforcing layer 3 inside the insulating outer sheath 1, the conductor core 5 and the copper conductor core 10 can withstand external forces more effectively and ensure the stability of the cable. Furthermore, by wrapping the cable with an external ethylene propylene rubber insulating sleeve 4 and a cross-linked polyethylene insulating layer 6, the overall cable has good insulation and high adaptability, making it easy to install and connect.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cross-linked polyethylene insulated cable for smart grids, comprising a conductor core (5), characterized in that, The conductor core (5) is provided with a reinforcing layer (3) on the outside, and a protective layer (2) is provided on the outside of the reinforcing layer (3). The protective layer (2) is uniformly distributed with braided layers (21) on the outside, and a connecting layer (22) is provided between each pair of braided layers (21). The braided layers (21) are provided with an insulating outer sheath (1) on the outside, and the reinforcing layer (3) is filled with a filling layer (9), and the filling layer (9) is pressed into contact with the conductor core (5).

2. The cross-linked polyethylene insulated cable for smart grids according to claim 1, characterized in that, The reinforcing layer (3) is provided with an ethylene propylene rubber insulating sleeve (4) inside, and the ethylene propylene rubber insulating sleeve (4) is in contact with the reinforcing layer (3) by compression.

3. The cross-linked polyethylene insulated cable for smart grids according to claim 1, characterized in that, The conductor core (5) is provided with a silver-plated copper conductor (8) on the outside, and a tin-plated copper conductor (7) is uniformly provided on the outside of the silver-plated copper conductor (8), and a braided layer (21) is provided between the tin-plated copper conductors (7).

4. A cross-linked polyethylene insulated cable for smart grids according to claim 1, characterized in that, The conductor core (5) is provided with a copper conductor core (10) inside, and the copper conductor core (10) is in contact with the conductor core (5) and the filling layer (9) inside the reinforcing layer (3).

5. A cross-linked polyethylene insulated cable for smart grids according to claim 1, characterized in that, A cross-linked polyethylene insulation layer (6) is provided between the reinforcing layer (3) and the protective layer (2), and the cross-linked polyethylene insulation layer (6) is in contact with the tin-plated copper conductor (7) inside.

6. A cross-linked polyethylene insulated cable for smart grids according to claim 1, characterized in that, The conductor core (5), tin-plated copper conductor (7) and silver-plated copper conductor (8) are evenly distributed, and the connecting layer (22) is compatible with the externally connected insulating outer sheath (1).

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