Low voltage cable with water and shear resistance

Abstract

The utility model relates to low -voltage cable technical field discloses waterproof shearing force resistance low -voltage cable, including cable body, the inside of cable body is provided with conductor layer, the outside of conductor layer is provided with insulating layer, the outside of insulating layer is provided with water -resisting rope, the outside of water -resisting rope is provided with inner shield layer, the outside of inner shield layer is provided with outer shield layer, the outside of outer shield layer is provided with water -resisting layer, the outside of water -resisting layer is provided with ultraviolet protection layer, the outside of ultraviolet protection layer is provided with shearing force resistance layer, the outside of shearing force resistance layer is provided with fire -resistant layer, the outside of fire -resistant layer is provided with sheath layer, in the utility model, realized the effective improvement of cable's performance, makes it can safely and reliably transmit electric energy under complex and harsh environment, improves the service life of cable.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage cable technology, and in particular to waterproof and shear-resistant low-voltage cables. Background Technology

[0002] Low-voltage cables are cables used to transmit voltage levels below 0.6 / 1kV. They are typically made of copper or aluminum, with insulation materials including PVC, rubber, or fiberglass. They are used in commercial and residential environments to transmit low-voltage signals, such as data, voice, audio, or video signals. Low-voltage cables come in two main types: twisted-pair and coaxial cables, each suitable for different signal transmission needs. In addition, fiber optic cables are also considered low-voltage cables because they are used to transmit optical signals, are unaffected by electromagnetic interference, and are suitable for applications requiring high-speed, long-distance data transmission.

[0003] In existing low-voltage cable technology, under complex and harsh environmental conditions, such as humid, watery, or mechanically stressful environments, the performance and lifespan of cables are often severely affected. When cables are exposed to humid environments or water penetration for a long time, their insulation performance is easily degraded, and even short-circuit faults may occur. Secondly, in environments with high mechanical stress, such as digging, abrasion, or vibration, cables are easily damaged by shear forces, leading to cable sheath rupture, which in turn affects the electrical performance and mechanical strength of the cable. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a waterproof and shear-resistant low-voltage cable, aiming to improve the poor performance of existing low-voltage cables.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and shear-resistant low-voltage cable, comprising a cable body, a conductor layer disposed inside the cable body, an insulation layer disposed outside the conductor layer, a water-blocking rope disposed outside the insulation layer, an inner shielding layer disposed outside the water-blocking rope, an outer shielding layer disposed outside the inner shielding layer, a water-blocking layer disposed outside the outer shielding layer, an ultraviolet protection layer disposed outside the water-blocking layer, a shear-resistant layer disposed outside the ultraviolet protection layer, a fire-resistant layer disposed outside the shear-resistant layer, and a sheath layer disposed outside the fire-resistant layer.

[0006] Furthermore, the conductor layer is made of multiple strands of copper or aluminum wire twisted together, and the water-blocking rope is made of polypropylene fiber.

[0007] Furthermore, the insulating layer is made of cross-linked polyethylene, and the thickness of the insulating layer is 0.5 mm to 2 mm.

[0008] Furthermore, both the inner and outer shielding layers are made of semiconductor materials.

[0009] Furthermore, the water-blocking layer is made of an intumescent water-blocking material, and the ultraviolet protection layer is made of polyvinyl chloride.

[0010] Furthermore, the shear-resistant layer is made of glass fiber woven material, and the thickness of the shear-resistant layer is 1mm to 5mm.

[0011] Furthermore, the refractory layer is made of ceramic fiber material, and the thickness of the refractory layer is 0.5mm to 3mm.

[0012] Furthermore, the sheath layer is made of polyvinyl chloride.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, the performance of the cable is effectively improved by the combination of multiple structures such as the conductor layer, insulation layer, water-blocking rope, and inner shielding layer, enabling it to transmit electrical energy safely and reliably in complex and harsh environments, thereby extending the service life of the cable. Attached Figure Description

[0015] Figure 1 This is a front view of the waterproof and shear-resistant low-voltage cable proposed in this utility model;

[0016] Figure 2 A diagram of the waterproof and shear-resistant low-voltage cable proposed in this utility model;

[0017] Figure 3 This is a diagram of the waterproof and shear-resistant low-voltage cable proposed in this utility model.

[0018] Legend:

[0019] 1. Cable body; 2. Conductor layer; 3. Insulation layer; 4. Water-blocking rope; 5. Inner shielding layer; 6. Outer shielding layer; 7. Water-blocking layer; 8. Ultraviolet protection layer; 9. Shear-resistant layer; 10. Fire-resistant layer; 11. Sheath layer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Reference Figures 1-3An embodiment of this utility model provides a waterproof and shear-resistant low-voltage cable, comprising a cable body 1, a conductor layer 2 disposed inside the cable body 1, an insulation layer 3 disposed outside the conductor layer 2, a water-blocking rope 4 disposed outside the insulation layer 3, an inner shielding layer 5 disposed outside the water-blocking rope 4, an outer shielding layer 6 disposed outside the inner shielding layer 5, a water-blocking layer 7 disposed outside the outer shielding layer 6, an ultraviolet protection layer 8 disposed outside the water-blocking layer 7, a shear-resistant layer 9 disposed outside the ultraviolet protection layer 8, a fire-resistant layer 10 disposed outside the shear-resistant layer 9, and a sheath layer 11 disposed outside the fire-resistant layer 10.

[0022] Conductor layer 2 is used for efficient transmission of electrical energy. The conductor layer 2 is protected by a tightly fitted insulation layer 3. This layer not only effectively prevents leakage and short circuits, but also ensures the electrical safety of the cable. Water-blocking rope 4 can effectively absorb and block the intrusion of moisture, thereby keeping the inside of the cable dry. The inner shielding layer 5 and the outer shielding layer 6 work together to form a powerful electromagnetic shielding system, effectively reducing the electric field strength and resisting external electromagnetic interference, ensuring stable signal transmission. The water-blocking layer 7 can expand rapidly when the cable is damaged, forming a protective barrier to further prevent moisture penetration. The ultraviolet protection layer 8 can effectively absorb and block ultraviolet rays, protecting the cable material from damage. The shear resistance layer 9 provides the cable with additional mechanical strength and shear resistance, greatly improving the cable's durability when subjected to physical impact. The fire-resistant layer 10 can slow down the burning rate in the event of a fire. The sheath layer 11 serves as a robust outer shell for the cable, providing comprehensive mechanical protection and effectively resisting the harm of the external environment.

[0023] Reference Figure 2 and Figure 3 The conductor layer 2 is made of multi-strand copper or aluminum wire twisted together; the water-blocking rope 4 is made of polypropylene fiber; the insulation layer 3 is made of cross-linked polyethylene with a thickness of 0.5mm to 2mm; the inner shielding layer 5 and the outer shielding layer 6 are both made of semiconductor materials; the water-blocking layer 7 is made of intumescent water-blocking material; the ultraviolet protection layer 8 is made of polyvinyl chloride; the shear-resistant layer 9 is made of glass fiber braided material with a thickness of 1mm to 5mm; the fire-resistant layer 10 is made of ceramic fiber material with a thickness of 0.5mm to 3mm; and the sheath layer 11 is made of polyvinyl chloride.

[0024] The conductor layer 2 is made of multiple strands of copper or aluminum wire, ensuring excellent conductivity. The water-blocking rope 4 is made of polypropylene fiber, which protects the inside of the cable from moisture damage due to its excellent water absorption and water-blocking properties. The insulation layer 3 is made of cross-linked polyethylene, with a thickness between 0.5mm and 2mm, ensuring both electrical isolation and mechanical flexibility. The inner shielding layer 5 and the outer shielding layer 6 are both made of semiconductor materials, together constructing an efficient electromagnetic field shielding system. The water-blocking layer 7 is made of an intumescent water-blocking material, which can react quickly when the cable is damaged, forming a waterproof barrier. The ultraviolet protection layer 8 is made of polyvinyl chloride, which effectively resists the damaging effects of ultraviolet rays on the cable. The shear resistance layer 9 is made of glass fiber braided material, with a thickness between 1mm and 5mm, which enhances the mechanical strength and shear resistance of the cable. The fire-resistant layer 10 uses ceramic fiber material, with a thickness between 0.5mm and 3mm, which provides additional fire safety protection. The outermost sheath layer 11 is made of polyvinyl chloride, giving the cable comprehensive mechanical protection and environmental adaptability.

[0025] Working Principle: The cable body 1 contains a conductor layer 2 for transmitting electrical energy, which is tightly wrapped by an insulation layer 3 to prevent leakage and short circuits. Outside the insulation layer 3, a water-blocking rope 4 is installed to absorb and block moisture intrusion. Outside the water-blocking rope 4 are an inner shielding layer 5 and an outer shielding layer 6. These two shielding layers work together to effectively reduce the electric field strength and resist external electromagnetic interference. Outside the outer shielding layer 6 is a water-blocking layer 7, which expands to form a barrier when the cable is damaged, further preventing moisture penetration. An ultraviolet protection layer 8 is located above the water-blocking layer 7, absorbing and blocking ultraviolet rays to protect the cable material from damage. A shear-resistant layer 9 provides additional mechanical strength and shear resistance, protecting the cable from physical damage. A fire-resistant layer 10 provides a certain degree of fire protection, slowing the cable's burning rate in a fire. The outermost sheath layer 11 provides overall mechanical protection for the cable, resisting the influence of the external environment. This effectively improves the cable's performance, enabling it to safely and reliably transmit electrical energy in complex and harsh environments, thus extending the cable's service life.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof and shear-resistant low-voltage cable, comprising a cable body (1), characterized in that: The cable body (1) has a conductor layer (2) inside, an insulation layer (3) outside the conductor layer (2), a water-blocking rope (4) outside the insulation layer (3), an inner shielding layer (5) outside the water-blocking rope (4), an outer shielding layer (6) outside the inner shielding layer (5), a water-blocking layer (7) outside the outer shielding layer (6), an ultraviolet protection layer (8) outside the water-blocking layer (7), a shear-resistant layer (9) outside the ultraviolet protection layer (8), a fire-resistant layer (10) outside the shear-resistant layer (9), and a sheath layer (11) outside the fire-resistant layer (10).

2. The waterproof and shear-resistant low-voltage cable according to claim 1, characterized in that: The conductor layer (2) is made of multiple strands of copper or aluminum wire twisted together, and the water-blocking rope (4) is made of polypropylene fiber.

3. The waterproof and shear-resistant low-voltage cable according to claim 1, characterized in that: The insulating layer (3) is made of cross-linked polyethylene and has a thickness of 0.5 mm to 2 mm.

4. The waterproof and shear-resistant low-voltage cable according to claim 1, characterized in that: Both the inner shielding layer (5) and the outer shielding layer (6) are made of semiconductor materials.

5. The waterproof and shear-resistant low-voltage cable according to claim 1, characterized in that: The water-blocking layer (7) is made of an intumescent water-blocking material, and the ultraviolet protection layer (8) is made of polyvinyl chloride.

6. The waterproof and shear-resistant low-voltage cable according to claim 1, characterized in that: The shear-resistant layer (9) is made of glass fiber woven material, and the thickness of the shear-resistant layer (9) is 1 mm to 5 mm.

7. The waterproof and shear-resistant low-voltage cable according to claim 1, characterized in that: The refractory layer (10) is made of ceramic fiber material and has a thickness of 0.5 mm to 3 mm.

8. The waterproof and shear-resistant low-voltage cable according to claim 1, characterized in that: The sheath layer (11) is made of polyvinyl chloride.

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