Protective wire cable

Abstract

The utility model discloses a kind of protective electric wire cable, comprising: steel wire rope;Cable core, multiple the cable core is along the circumferential interval of steel wire rope Setting;First insulating layer, the first insulating layer is respectively wrapped in the outer surface of each cable core;Shielding layer, the shielding layer is respectively wrapped in the outer surface of each first insulating layer;Second insulating layer, the second insulating layer is wrapped in the outer surface of all shielding layer;Waterproof layer, the waterproof layer is wrapped in the outer surface of second insulating layer;Armour layer, the armour layer is wrapped in the outer surface of waterproof layer;Outer protective sleeve, the outer protective sleeve is wrapped in the outer surface of armour layer.Can solve the problem of poor insulation performance, poor waterproof performance and poor protection performance.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable technology, and in particular to a protective wire and cable. Background Technology

[0002] Traditional PVC insulated wires have poor resistance to heat and oxygen aging in their insulation layer. During prolonged use, especially in high-temperature environments, the insulation layer is prone to aging and cracking. For example, in some industrial plants, due to the large amount of heat generated by equipment operation, the insulation layer of ordinary PVC insulated wires may show significant aging within 10-15 years, greatly increasing the probability of safety accidents such as short circuits. Currently, some wires use halogen-free, low-smoke, flame-retardant polyolefin materials as insulation. Although these materials have flame-retardant properties, the addition of large amounts of aluminum hydroxide and magnesium hydroxide flame retardants in their formula makes them susceptible to moisture absorption. Once damp, the insulation performance will severely deteriorate. For example, in underground cable trenches with high humidity, the insulation resistance of such cables may drop below the specified value in a short time, affecting the stability and safety of power transmission. During installation and use, cables may be subjected to external forces such as compression, stretching, and friction. For example, in construction sites, construction equipment may accidentally collide with cables. If the cable's mechanical protection is insufficient, the outer sheath and internal insulation layer are easily damaged, leading to cable failure. Some traditional cables have insufficient outer sheath material strength, and may crack when subjected to minor external impacts. Based on this, a protective cable was designed. Utility Model Content

[0003] To overcome at least one of the defects described in the prior art, this utility model provides a protective wire and cable. It solves the problems of poor insulation performance, poor waterproof performance, and poor protective performance.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] A protective wire and cable includes: a steel wire rope; cable cores, a plurality of cable cores being arranged circumferentially spaced along the steel wire rope; a first insulation layer, the first insulation layer respectively wrapping the outer surface of each of the cable cores; a shielding layer, the shielding layer respectively wrapping the outer surface of each of the first insulation layers; a second insulation layer, the second insulation layer wrapping the outer surface of all the shielding layers; a waterproof layer, the waterproof layer wrapping the outer surface of the second insulation layer; an armor layer, the armor layer wrapping the outer surface of the waterproof layer; and an outer protective sheath, the outer protective sheath wrapping the outer surface of the armor layer.

[0006] By adopting the above solution, the problems of poor insulation performance, poor waterproof performance, and poor protective performance can be solved.

[0007] Furthermore, the cable core is made of stranded steel or copper wire.

[0008] By adopting the above scheme, the steel wire stranding enhances the mechanical strength of the cable core. When the cable is subjected to external forces such as compression, bending, or stretching, it effectively resists deformation, ensuring the integrity of the internal conductor and preventing circuit breaks due to mechanical damage. For example, in environments prone to external mechanical interference, such as construction sites, it can significantly improve the cable's durability. Copper has excellent conductivity; the cable core formed by stranded copper wires has low resistance, effectively reducing energy loss during transmission and improving power transmission efficiency. In long-distance transmission lines, it can reduce energy waste caused by resistance, while its good ductility makes the cable less prone to breakage when bent, ensuring the stability of power transmission. The stranded structure can also disperse manufacturing defects, improve conductor reliability, and reduce the failure rate at joints.

[0009] Furthermore, the first insulating layer is made of cross-linked polyethylene material.

[0010] By adopting the above scheme, cross-linked polyethylene material has excellent electrical insulation properties, which can effectively prevent current leakage and ensure the safety of power transmission.

[0011] Furthermore, the shielding layer is made of aluminum foil strip.

[0012] By adopting the above solution, the shielding layer made of aluminum foil strip can effectively shield external electromagnetic interference, prevent the influence of external electromagnetic fields on the internal signals of the cable, and ensure the stability of power transmission.

[0013] Furthermore, the second insulating layer is made of polytetrafluoroethylene (PTFE).

[0014] By adopting the above solution, polytetrafluoroethylene has an extremely low coefficient of friction, making the cable easier to bend and move during the laying process, and reducing damage to the cable caused by friction.

[0015] Furthermore, the waterproof layer is made of EPDM rubber.

[0016] By adopting the above solution, EPDM rubber exhibits excellent water resistance and can effectively prevent moisture from penetrating into the cable.

[0017] Furthermore, the armor layer is made of steel strip wound together.

[0018] By adopting the above scheme, the armor layer formed by steel strip winding has high strength and hardness, and can withstand greater external forces such as compression, tension and impact.

[0019] Furthermore, the outer protective sleeve is made of polyvinyl chloride material.

[0020] By adopting the above solution, polyvinyl chloride material has good wear resistance and can protect the internal structure from damage when the cable is subjected to friction. Attached Figure Description

[0021] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0022] The meanings of the reference numerals in the attached drawings are as follows: 1. Steel wire rope; 2. Cable core; 3. First insulation layer; 4. Shielding layer; 5. Second insulation layer; 6. Waterproof layer; 7. Armor layer; 8. Outer protective sleeve. Detailed Implementation

[0023] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.

[0024] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0027] See Figure 1This utility model discloses a protective wire and cable: comprising a steel wire rope 1, a cable core 2, a first insulation layer 3, a shielding layer 4, a second insulation layer 5, a waterproof layer 6, an armor layer 7, and an outer protective sleeve 8. Multiple cable cores 2 are spaced apart circumferentially along the steel wire rope 1. The first insulation layer 3 is wrapped around the outer surface of each cable core 2, the shielding layer 4 is wrapped around the outer surface of each first insulation layer 3, the second insulation layer 5 is wrapped around the outer surface of all shielding layers 4, the waterproof layer 6 is wrapped around the outer surface of the second insulation layer 5, the armor layer 7 is wrapped around the outer surface of the waterproof layer 6, and the outer protective sleeve 8 is wrapped around the outer surface of the armor layer 7. This design solves the problems of poor insulation performance, poor waterproof performance, and poor protective performance.

[0028] In this embodiment, the cable core 2 is made of stranded steel or copper wire. The stranding of steel wire enhances the mechanical strength of the cable core 2, effectively resisting deformation when the cable is subjected to external pressure, bending, or stretching, ensuring the integrity of the internal conductor and preventing circuit breaks due to mechanical damage. For example, in environments prone to external mechanical interference, such as construction sites, this significantly improves the cable's durability. Copper has excellent conductivity; the cable core 2 made of stranded copper wire has low resistance, effectively reducing energy loss during transmission and improving power transmission efficiency. In long-distance transmission lines, this reduces energy waste caused by resistance, and its good ductility makes the cable less prone to breakage when bent, ensuring the stability of power transmission. The stranded structure also disperses manufacturing defects, improving conductor reliability and reducing the failure rate at joints.

[0029] In this embodiment, the first insulating layer 3 is made of cross-linked polyethylene material, which has excellent electrical insulation properties and can effectively prevent current leakage and ensure the safety of power transmission.

[0030] In this embodiment, the shielding layer 4 is made of aluminum foil strip. The shielding layer 4 made of aluminum foil strip can effectively shield external electromagnetic interference, prevent the external electromagnetic field from affecting the internal signal of the cable, and ensure the stability of power transmission.

[0031] In this embodiment, the second insulation layer 5 is made of polytetrafluoroethylene (PTFE), which has an extremely low coefficient of friction, making the cable easier to bend and move during laying and reducing damage to the cable caused by friction.

[0032] In this embodiment, the waterproof layer 6 is made of EPDM rubber, which has excellent water resistance and can effectively prevent moisture from penetrating into the cable.

[0033] In this embodiment, the armor layer 7 is formed by winding steel strips. The armor layer 7 formed by winding steel strips has high strength and hardness and can withstand large external forces such as compression, tension and impact.

[0034] In this embodiment, the outer protective sleeve 8 is made of polyvinyl chloride (PVC). PVC has good wear resistance and can protect the internal structure from damage when the cable is subjected to friction.

[0035] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A protective wire and cable, characterized in that, include: Wire rope; Cable cores, a plurality of said cable cores are arranged at circumferential intervals along said wire rope; A first insulating layer is provided, which wraps around the outer surface of each of the cable cores. A shielding layer, wherein the shielding layer is respectively wrapped around the outer surface of each of the first insulating layers; A second insulating layer, which covers the outer surface of all the shielding layers; A waterproof layer, wherein the waterproof layer is wrapped around the outer surface of the second insulating layer; An armor layer, which wraps around the outer surface of the waterproof layer; An outer protective sleeve, which wraps around the outer surface of the armor layer.

2. The protective wire and cable according to claim 1, characterized in that, The cable core is made of steel or copper wire twisted together.

3. The protective wire and cable according to claim 2, characterized in that, The first insulating layer is made of cross-linked polyethylene material.

4. A protective wire and cable according to claim 3, characterized in that, The shielding layer is made of aluminum foil strip.

5. A protective wire and cable according to claim 4, characterized in that, The second insulating layer is made of polytetrafluoroethylene.

6. A protective wire and cable according to claim 5, characterized in that, The waterproof layer is made of EPDM rubber.

7. A protective wire and cable according to claim 6, characterized in that, The armor layer is made of steel strip wound together.

8. A protective wire and cable according to claim 7, characterized in that, The outer protective sleeve is made of polyvinyl chloride.

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