Power cable for power supply station machine room

Abstract

The utility model discloses a power cable for a power supply station machine room, and relates to the technical field of power cables, the power cable comprises three metal copper wires which are arranged at a line speed, the outer wall of each metal copper wire is wrapped with a metal shielding film, and the outer wall of each metal shielding film is wrapped with an insulating sleeve; the outer walls of the three metal copper wires are wrapped by an inner protective layer. The steel belt sleeve is arranged between the inner protective layer and the outer protective layer, the seamless aluminum pipe is made of metal materials, and the seamless aluminum pipe is soft in structure, can be bent at will and is not prone to breakage, so that the seamless aluminum pipe serves as a core support between the inner protective layer and the outer protective layer, and the service life of the inner protective layer and the outer protective layer is prolonged. According to the power cable for the power supply station machine room, the inner protective layer and the outer protective layer are arranged in the middle of the power cable, so that the power cable for the power supply station machine room can be better supported in an anti-bending manner, the power cable for the power supply station machine room is not easy to break in a proper bending process, and meanwhile, the seamless aluminum pipe is used as a core support between the inner protective layer and the outer protective layer, so that the power cable for the power supply station machine room has better tensile property.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a power cable for a power supply station room. Background Art

[0002] The power cables used in the power supply station room are generally three-phase cables. The power supply station room is an important part of the power system and is mainly used to install and operate power equipment, such as transformers, switch cabinets, and power distribution devices. The design and construction of the power supply station room should follow certain specifications and standards to ensure the safe and stable operation of power equipment.

[0003] At present, the power cables used in the power supply station room are generally three-phase power supply. The power cables used in the power supply station room are high-power and high-voltage power. Therefore, the copper wire inside the power cables used in the power supply station room is thicker, and the cross-sectional volume of the power cables is thicker. The power cables used in the power supply station room have poor tensile, compressive, bending and corrosion resistance. Therefore, it is necessary to provide a power cable for the power supply station room. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a power cable for a power supply station room to solve the technical problems that the current power cables for power supply station rooms are generally three-phase power supply, and the power cables for power supply station rooms belong to high-power and high-voltage electricity. Therefore, the copper wire inside the power cables for power supply station rooms is relatively thick, the cross-sectional volume of the power cables is relatively thick, and the power cables for power supply station rooms have poor tensile, compressive, bending and corrosion resistance.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A power cable for a power station room comprises three metal copper wires arranged at a linear speed, the outer wall of each of the metal copper wires being wrapped with a metal shielding film, the outer wall of the metal shielding film being wrapped with an insulating sleeve; the outer walls of the three metal copper wires are wrapped by an inner protective layer.

[0007] As a preferred technical solution of the utility model, the outer wall of the inner protective layer is provided with a steel belt sleeve, and the outer wall of the steel belt sleeve is provided with an outer protective layer.

[0008] As a preferred technical solution of the utility model, the three insulating sleeves are provided with fillers inside the inner protective layer.

[0009] As a preferred technical solution of the utility model, the outer protective layer is ethylene-resistive polyvinyl fluoride insulation and sheath.

[0010] As a preferred technical solution of the utility model, the inner protective layer is insulating rubber.

[0011] As a preferred technical solution of the utility model, the filler is powdery granular aluminum silicate.

[0012] As a preferred technical solution of the utility model, the steel belt sleeve is a seamless aluminum tube made of metal material.

[0013] As a preferred technical solution of the present utility model, the metal shielding film is an isolation film made of PP material.

[0014] As a preferred technical solution of the utility model, the insulating sleeve is a wiring harness sleeve made of PVC rubber material.

[0015] The beneficial effects of the utility model are:

[0016] The utility model is provided with a steel belt casing wrapped on the outer wall of the inner protective layer, and the outer wall of the steel belt casing is provided with an outer protective layer wrapped, and the outer protective layer is a polyvinyl fluoride insulation and sheath of PVC, which is an insulation and sheath material for wires and cables. It is made of polyvinyl fluoride (PVC) after special flame retardant treatment. It has good electrical insulation performance, heat resistance, corrosion resistance and aging resistance. Therefore, using polyvinyl fluoride insulation and sheath as the outer layer of the power cable for the power station room can well protect the power cable, and can well make the power cable for the power station room have heat resistance, corrosion resistance and aging resistance.

[0017] The utility model provides a steel belt sleeve between the inner protective layer and the outer protective layer, which is a seamless aluminum tube made of metal. The seamless aluminum tube has a soft structure, can be bent arbitrarily, and is not easy to break. Therefore, the seamless aluminum tube is used as the core support in the middle of the inner protective layer and the outer protective layer, which can better provide anti-bending support for the power cable in the power supply station room, so that the power cable in the power supply station room is not easy to break during appropriate bending. At the same time, the seamless aluminum tube is used as the core support in the middle of the inner protective layer and the outer protective layer, so that the power cable in the power supply station room has better tensile resistance.

[0018] The utility model provides a filler between two adjacent metal copper wires, wherein the filler is aluminum silicate. By using the aluminum silicate for filling and isolation, the two adjacent metal copper wires can be flame-retarded and heat-insulated, thereby effectively improving the flame-retardant performance of the power cable.

[0019] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the cross-sectional structure of a power cable for a power supply station room of the utility model;

[0021] Figure 2 This is a front view structural diagram of a power cable for a power supply station room of the utility model;

[0022] In the figure: outer protective layer 1, steel belt casing 2, inner protective layer 3, filler 4, insulating film 5, insulating casing 6, metal shielding film 7, metal copper wire 8. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the above description of the utility model, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0028] Embodiment 1

[0029] See also Figure 1-2 , which is a technical solution provided by the utility model: a power cable for a power supply station room, comprising three metal copper wires 8 arranged at a linear speed, the outer wall of each metal copper wire 8 is wrapped with a metal shielding film 7, the outer wall of the metal shielding film 7 is wrapped with an insulating sleeve 6, the insulating sleeve 6 is a wire harness sleeve made of PVC rubber material, the insulating sleeve 6 plays an insulating isolation role to prevent short circuits between two adjacent metal copper wires 8, the outer wall of the insulating sleeve 6 is wrapped with an insulating film 5, the insulating film 5 is any one of polyimide, polyethylene, polyvinylidene fluoride, and polytetrafluoroethylene, the insulating film 5 plays an effect of consolidating and strengthening insulation to reduce dielectric loss.

[0030] The outer walls of the three metal copper wires 8 are wrapped by the inner protective layer 3 .

[0031] The outer wall of the inner protective layer 3 is wrapped with a steel belt casing 2 , and the outer wall of the steel belt casing 2 is wrapped with an outer protective layer 1 .

[0032] Three insulating sleeves 6 are provided inside the inner protective layer 3 and filled with fillers 4 .

[0033] Specifically, the utility model is provided with a steel belt casing 2 wrapped on the outer wall of the inner protective layer 3, and the outer wall of the steel belt casing 2 is provided with an outer protective layer 1 wrapped, and the outer protective layer 1 is a polyvinyl fluoride insulation and sheath, which is a kind of insulation and sheath material for wires and cables. It is made of polyvinyl fluoride PVC after special flame retardant treatment. It has good electrical insulation performance, heat resistance, corrosion resistance and aging resistance. Therefore, using polyvinyl fluoride insulation and sheath as the outer layer of the power cable for the power station room can well protect the power cable, and can well make the power cable for the power station room have heat resistance, corrosion resistance and aging resistance.

[0034] Specifically, the utility model provides a steel belt sleeve 2 between the inner protective layer 3 and the outer protective layer 1, which is a seamless aluminum tube made of metal. The seamless aluminum tube has a soft structure, can be bent arbitrarily, and is not easy to break. Therefore, the seamless aluminum tube is used as the core support in the middle of the inner protective layer 3 and the outer protective layer 1, which can better provide anti-bending support for the power cable in the power supply station room, so that the power cable in the power supply station room is not easy to break during appropriate bending. At the same time, the seamless aluminum tube is used as the core support in the middle of the inner protective layer 3 and the outer protective layer 1, so that the power cable in the power supply station room has better tensile performance.

[0035] The outer protective layer 1 is PVC insulation and sheath. PVC insulation and sheath is an insulation and sheath material for wires and cables. It is made of PVC after special flame retardant treatment. It has good electrical insulation performance, heat resistance, corrosion resistance and aging resistance. Therefore, using PVC insulation and sheath as the outer layer of the power cable for the power station room can well protect the power cable and make the power cable for the power station room have good heat resistance, corrosion resistance and aging resistance.

[0036] The inner protective layer 3 is made of insulating rubber, which has the effect of soft wrapping and insulation.

[0037] The filler 4 is aluminum silicate in powdered granular form. The utility model provides a filler 4 between two adjacent metal copper wires 8. The filler 4 is aluminum silicate. By using aluminum silicate for filling and isolation, the filler 4 can play a role of flame retardancy and heat insulation between the two adjacent metal copper wires 8. Therefore, the flame retardancy of the power cable can be effectively improved.

[0038] The steel belt casing 2 is a seamless aluminum tube made of metal. The seamless aluminum tube structure is relatively soft, can be bent arbitrarily, and is not easy to break. Therefore, by using the seamless aluminum tube as the core support of the inner protective layer 3 and the middle of the outer protective layer 1, it can better play the role of anti-bending support for the power cable used in the power supply station room, so that the power cable used in the power supply station room is not easy to break during the appropriate bending process. At the same time, by using the seamless aluminum tube as the core support of the inner protective layer 3 and the middle of the outer protective layer 1, the power cable used in the power supply station room has better tensile performance.

[0039] The metal shielding film 7 is a PP material isolation film. The PP material isolation film is also called a polypropylene isolation film, which is a film made of a polypropylene thermoplastic polymer. It has many excellent properties, including good chemical stability, heat resistance, tensile strength and electrical insulation. These properties make the PP isolation film widely used in many applications.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A power cable for a power supply station room, comprising three metal copper wires (8) arranged at a linear speed, characterized in that: The outer wall of each of the metal copper wires (8) is wrapped with a metal shielding film (7), and the outer wall of the metal shielding film (7) is wrapped with an insulating sleeve (6); The outer walls of the three metal copper wires (8) are wrapped by the inner protective layer (3).

2. A power cable for a power supply station room according to claim 1, characterized in that: The outer wall of the inner protective layer (3) is wrapped by a steel belt sleeve (2), and the outer wall of the steel belt sleeve (2) is wrapped by an outer protective layer (1).

3. A power cable for a power supply station room according to claim 2, characterized in that: The three insulating sleeves (6) are provided with fillers (4) inside the inner protective layer (3).

4. A power cable for a power supply station room according to claim 3, characterized in that: The outer protective layer (1) is a polyvinyl fluoride insulation and sheath.

5. The power cable for a power supply station room according to claim 3, characterized in that: The inner protective layer (3) is insulating rubber.

6. A power cable for a power supply station room according to claim 5, characterized in that: The filler (4) is aluminum silicate in powdery granular form.

7. A power cable for a power supply station room according to claim 6, characterized in that: The steel belt sleeve (2) is a seamless aluminum tube made of metal material.

8. The power cable for a power supply station room according to claim 7, characterized in that: The metal shielding film (7) is an isolation film made of PP material.

9. The power cable for a power supply station room according to claim 1, characterized in that: The insulating sleeve (6) is a wiring harness sleeve made of PVC rubber material.

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