Stretch-resistant low-voltage power cable

Abstract

The utility model provides a tensile low-voltage power cable, which relates to the technical field of cables and comprises a cable main body, a wire core is arranged in the cable main body, a first insulating layer is fixed on the outer wall of the wire core, and a shielding layer is fixed on the outer wall of the insulating layer. Through the arrangement of the plurality of elastic connecting sheets, the flexibility of the first reinforcing layer is enhanced, the strength of the cable main body is improved, the tensile property of the cable main body is improved, and the first reinforcing layer and the second reinforcing layer are made of steel wire layer materials, so that the cable can be effectively prevented from being damaged by external extrusion and tensile force; the cable main body is provided with an anti-corrosion layer, the anti-corrosion layer is made of polyethylene, the polyethylene has high corrosion resistance and can provide certain anti-corrosion protection, and the cable main body is prevented from being directly rubbed with the outside through the protection sleeve; therefore, the wear resistance of the cable main body is improved in a disguised manner.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a tensile-resistant low-voltage power cable. Background Art

[0002] Power cables are cables used to transmit and distribute electrical energy. They are commonly used in urban underground power grids, power station lead-out lines, internal power supply for industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. Power cables are cable products used to transmit and distribute high-power electrical energy in the trunk lines of power systems, including 1-500KV and above various voltage levels, and various insulation power cables.

[0003] In the prior art, an existing low-voltage power cable has poor tensile strength during use, which causes the power cable to break easily during stretching and installation, causing damage to the power cable and shortening the service life of the power cable. At the same time, the corrosion resistance and protection performance of the power cable are poor, which causes the power cable to be easily corroded, damaged and worn during long-term use, shortening the service life of the power cable and having poor practicality. Utility Model Content

[0004] The utility model mainly provides a tensile-resistant low-voltage power cable which has strong tensile performance, strong corrosion resistance and is not easy to wear.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tensile-resistant low-voltage power cable, comprising a cable body, a core is arranged in the cable body, a first insulating layer is fixed on the outer wall of the core, a shielding layer is fixed on the outer wall of the insulating layer, a first reinforcing layer is fixed on the outer wall of the shielding layer, a second reinforcing layer is fixed on the outer wall of the first reinforcing layer, a waterproof layer is fixed on the outer wall of the second reinforcing layer, and a protective cover is arranged on the outer side of the waterproof layer.

[0006] Preferably, a plurality of elastic connecting pieces are arranged in the first reinforcement layer, and the plurality of elastic connecting pieces are evenly distributed around the shielding layer. Through the arrangement of the plurality of elastic connecting pieces, the flexibility of the first reinforcement layer is enhanced, the strength of the cable body is improved, the tensile resistance of the cable body is improved, and the practicality is enhanced.

[0007] Preferably, an anti-corrosion layer is fixed on the outer wall of the waterproof layer, and the protective cover is fixed on the outer wall of the anti-corrosion layer. The thickness of the anti-corrosion layer is 0.05 mm to 0.3 mm. Through the setting of the anti-corrosion layer, and the material of the anti-corrosion layer is polyethylene, which has strong corrosion resistance, it can provide certain anti-corrosion protection.

[0008] Preferably, the thickness of the insulating layer is 0.1mm to 0.3mm, and the thickness of the shielding layer is 0.05mm to 0.3mm. Through the arrangement of the insulating layer and the shielding layer, the cable body has good electrical insulation performance and chemical resistance and performs electromagnetic shielding on the cable to prevent it from generating electromagnetic reaction with the elastic connecting piece.

[0009] Preferably, the thickness of the first reinforcement layer and the second reinforcement layer are both 0.1 mm to 0.5 mm. The first reinforcement layer and the second reinforcement layer both use a steel wire layer, and the steel wire layer is a layer woven or twisted by steel wires, which is used to provide strong tensile strength and mechanical protection. It can effectively protect the cable from external extrusion and tension damage, achieve the strength of the secondary reinforcement cable body, and is more practical.

[0010] Preferably, the thickness of the waterproof layer is 0.05 mm to 0.3 mm, and the waterproof layer adopts a corrugated aluminum casing layer, which has good waterproof performance, so that the waterproof property of the cable body is enhanced.

[0011] Preferably, the thickness of the protective sleeve is 2 mm to 4 mm. By providing the protective sleeve, the cable body is prevented from direct friction with the outside world, thereby improving the wear resistance of the cable body in disguised form, and being more practical.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] In the utility model, the flexibility of the first reinforcement layer is enhanced by setting a plurality of elastic connecting pieces, so that the strength of the cable body is improved, and the tensile resistance of the cable body is improved. The first reinforcement layer and the second reinforcement layer both use a steel wire layer, and the steel wire layer is a layer made of braided or twisted steel wires, which is used to provide strong tensile strength and mechanical protection. It can effectively protect the cable from damage by external extrusion and tension, achieve the strength of the secondary reinforcement cable body, and is more practical. The anti-corrosion layer is set, and the material of the anti-corrosion layer is polyethylene, which has strong corrosion resistance and can provide certain anti-corrosion protection. Through the setting of the protective sleeve, the cable body is prevented from direct friction with the outside world, thereby improving the wear resistance of the cable body in disguise, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of a tensile-resistant low-voltage power cable is proposed for the utility model;

[0015] Figure 2 A three-dimensional diagram of a tensile-resistant low-voltage power cable is proposed for the utility model;

[0016] Figure 3The utility model provides a cross-sectional layered schematic diagram of a tensile-resistant low-voltage power cable.

[0017] Legend: 1. Cable body; 2. Wire core; 3. Insulation layer; 4. Shielding layer; 5. First reinforcement layer; 6. Elastic connecting piece; 7. Second reinforcement layer; 8. Waterproof layer; 9. Anti-corrosion layer; 10. Protective cover. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0020] See also Figure 1-Figure 3 The utility model provides a technical solution: a tensile-resistant low-voltage power cable, comprising a cable body 1, a core 2 is arranged in the cable body 1, a first insulating layer 3 is fixed on the outer wall of the core 2, a shielding layer 4 is fixed on the outer wall of the insulating layer 3, a first reinforcing layer 5 is fixed on the outer wall of the shielding layer 4, a second reinforcing layer 7 is fixed on the outer wall of the first reinforcing layer 5, a waterproof layer 8 is fixed on the outer wall of the second reinforcing layer 7, and a protective cover 10 is arranged on the outer side of the waterproof layer 8.

[0021] like Figure 1-3 As shown, a plurality of elastic connecting pieces 6 are arranged in the first reinforcement layer 5, and the plurality of elastic connecting pieces 6 are evenly distributed around the shielding layer 4. By setting the plurality of elastic connecting pieces 6, the flexibility of the first reinforcement layer 5 is enhanced, the strength of the cable body 1 is improved, the tensile resistance of the cable body 1 is improved, and the practicality is enhanced.

[0022] like Figure 1-3 As shown, the anti-corrosion layer 9 is fixed on the outer wall of the waterproof layer 8, and the protective cover 10 is fixed on the outer wall of the anti-corrosion layer 9. The thickness of the anti-corrosion layer 9 is 0.05 mm to 0.3 mm. Through the setting of the anti-corrosion layer 9, and the material of the anti-corrosion layer 9 is polyethylene, which has strong corrosion resistance, it can provide certain anti-corrosion protection.

[0023] like Figure 1-3 As shown, the thickness of the insulating layer 3 is 0.1mm to 0.3mm, and the thickness of the shielding layer 4 is 0.05mm to 0.3mm. Through the arrangement of the insulating layer 3 and the shielding layer 4, the cable body 1 has good electrical insulation performance and chemical resistance and performs electromagnetic shielding on the cable to prevent it from generating electromagnetic reaction with the elastic connecting piece 6.

[0024] like Figure 1-3 As shown, the thickness of the first reinforcement layer 5 and the second reinforcement layer 7 are both 0.1 mm to 0.5 mm. The first reinforcement layer 5 and the second reinforcement layer 7 are both made of steel wire layers, and the steel wire layer is a layer made of braided or twisted steel wires, which is used to provide strong tensile strength and mechanical protection. It can effectively protect the cable from external extrusion and tension damage, achieve the strength of the secondary reinforcement cable body 1, and is more practical.

[0025] like Figure 1-3 As shown, the thickness of the waterproof layer 8 is 0.05 mm to 0.3 mm. The waterproof layer 8 adopts a corrugated aluminum sleeve layer, and the corrugated aluminum sleeve layer has good waterproof performance, so that the waterproof property of the cable body 1 is enhanced.

[0026] like Figure 1-3 As shown, the thickness of the protective sleeve 10 is 2 mm to 4 mm. By setting the protective sleeve 10, the cable body 1 is prevented from directly rubbing against the outside, thereby improving the wear resistance of the cable body 1 in disguised form and making it more practical.

[0027] The use method and working principle of the device: When the device is used, the flexibility of the first reinforcement layer 5 is enhanced by setting a plurality of elastic connecting pieces 6, so that the strength of the cable body 1 is improved, and the tensile resistance of the cable body 1 is improved. The first reinforcement layer 5 and the second reinforcement layer 7 are both made of steel wire layers, and the steel wire layer is a layer made of woven or twisted steel wires, which is used to provide strong tensile strength and mechanical protection. It can effectively protect the cable from damage by external extrusion and tension, achieve the strength of the secondary reinforcement cable body 1, and is more practical. Through the setting of the anti-corrosion layer 9, the material of the anti-corrosion layer 9 is polyethylene, which has strong corrosion resistance and can provide certain anti-corrosion protection. Through the setting of the protective sleeve 10, the cable body 1 is prevented from direct friction with the outside world, thereby improving the wear resistance of the cable body 1 in disguise, and is more practical.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A tensile-resistant low-voltage power cable, comprising a cable body (1), characterized in that: A wire core (2) is arranged inside the cable body (1); a first insulating layer (3) is fixed on the outer wall of the wire core (2); a shielding layer (4) is fixed on the outer wall of the insulating layer (3); a first reinforcing layer (5) is fixed on the outer wall of the shielding layer (4); a second reinforcing layer (7) is fixed on the outer wall of the first reinforcing layer (5); a waterproof layer (8) is fixed on the outer wall of the second reinforcing layer (7); and a protective sleeve (10) is arranged on the outer side of the waterproof layer (8).

2. A tensile-resistant low-voltage power cable according to claim 1, characterized in that: A plurality of elastic connecting sheets (6) are arranged in the first reinforcement layer (5), and the plurality of elastic connecting sheets (6) are evenly distributed around the shielding layer (4).

3. The tensile-resistant low-voltage power cable according to claim 1, characterized in that: The anti-corrosion layer (9) is fixed on the outer wall of the waterproof layer (8), and the protective sleeve (10) is fixed on the outer wall of the anti-corrosion layer (9). The thickness of the anti-corrosion layer (9) is 0.05 mm to 0.3 mm.

4. The tensile-resistant low-voltage power cable according to claim 1, characterized in that: The thickness of the insulating layer (3) is 0.1 mm to 0.3 mm, and the thickness of the shielding layer (4) is 0.05 mm to 0.3 mm.

5. The tensile-resistant low-voltage power cable according to claim 1, characterized in that: The thickness of the first reinforcement layer (5) and the second reinforcement layer (7) are both 0.1 mm to 0.5 mm.

6. The tensile-resistant low-voltage power cable according to claim 1, characterized in that: The thickness of the waterproof layer (8) is 0.05 mm to 0.3 mm.

7. The tensile-resistant low-voltage power cable according to claim 1, characterized in that: The thickness of the protective sleeve (10) is 2 mm to 4 mm.

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