Corrosion-resistant high-voltage insulated cable

Abstract

The utility model relates to the technical field of cables, and provides a corrosion-resistant high-voltage insulated cable, which comprises two compressed conductor wires, the two conductor wires respectively adopt a 1553B data line and a GSWF-3507 high-frequency low-loss stable-phase cable, the exteriors of the two conductor wires are respectively wrapped with a micropore belt, and the exteriors of the micropore belts are provided with insulating layers; an aluminum foil layer is arranged outside the two insulating layers, a shielding layer is arranged outside the aluminum foil layer, and a sheath is wrapped outside the shielding layer. The scheme has the characteristics of wear resistance, cold resistance, aging resistance, corrosion resistance and the like, and ensures stable transmission of signals among equipment.

Description

Technical Field

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

[0002] Overhead insulated cable is a type of cable suspended in the air. Its structure usually includes a twisted conductor with an insulating layer. Medium and high voltage cables also have a conductor shielding layer. The national standard stipulates that the twisted conductor adopts a multi-twisted structure, that is, each single overhead insulated core is twisted together into a cable to form a finished product.

[0003] The insulated wire cores between the phases are in contact with each other, and there is a certain radial pressure between them, which can easily cause phase breakdown; and in overhead lines, due to the long-term influence of factors such as wind, the wire cores rub against each other, which can easily cause insulation damage and lead to phase breakdown; in order to change the insulation defects of multi-core twisted overhead cables, multiple single-core overhead insulated cables are currently installed separately, which increases the construction cost and makes the distribution network line layout chaotic. Utility Model Content

[0004] In view of the above problems, the utility model provides a corrosion-resistant high-voltage insulated cable.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is:

[0006] A corrosion-resistant high-voltage insulated cable comprises two compressed conductor wires, wherein the two conductor wires are 1553B data wires and GSWF-3507 high-frequency, low-loss, and stable-phase cables, respectively, and the outsides of the two conductor wires are both wrapped with microporous tapes, and the outsides of the microporous tapes are provided with insulating layers;

[0007] An aluminum foil layer is commonly arranged outside the two insulating layers, a shielding layer is arranged outside the aluminum foil layer, and a sheath is wrapped around the shielding layer.

[0008] Preferably, two ground wire cores are further arranged inside the aluminum foil layer, and a layer of cross-linked polyethylene is extruded outside the two ground wire cores. The two groups of ground wire cores and the two groups of conductor wires are twisted together to form a cable core.

[0009] Preferably, the insulating layer is wrapped with a polyvinyl chloride film.

[0010] Preferably, the shielding layer is woven from tinned copper wires.

[0011] Preferably, the aluminum foil layer is made of polyimide composite aluminum foil.

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

[0013] The beneficial effects of the utility model are:

[0014] 1. This solution has the characteristics of wear resistance, cold resistance, aging resistance, and corrosion resistance, ensuring the stable transmission of signals between devices.

[0015] 2. This solution has a wide operating temperature range of -100 to 200°C, and the dielectric attenuation is low, thereby reducing the attenuation of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] In the figure: 1 sheath, 2 shielding layer, 3 aluminum foil layer, 4 cable core, 5 insulation layer, 6 microporous tape, 7 conductor wire, 8 cross-linked polyethylene, 9 ground wire core. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] Reference Figure 1 A corrosion-resistant high-voltage insulated cable comprises two compressed conductor wires 7, wherein the two conductor wires 7 are 1553B data wires and GSWF-3507 high-frequency, low-loss, and stable-phase cables, respectively, and the outsides of the two conductor wires 7 are both wrapped with microporous tapes 6, and the outsides of the microporous tapes 6 are provided with an insulating layer 5;

[0022] An aluminum foil layer 3 is commonly disposed outside the two insulating layers 5 , a shielding layer 2 is disposed outside the aluminum foil layer 3 , and a sheath 1 is wrapped around the shielding layer 2 .

[0023] 1553B data bus characteristics, impedance (@1MHz) is 50±1.5Ω; attenuation value (@1MHz) ≤4.8dB / 100m; impedance consistency ≤±2Ω; distributed capacitance ≤100pF / m;

[0024] GSWF-3507 phase-stable cable transmission indicators, characteristic impedance (@200MHz), attenuation value, ≤17.0dB / 100m (20MHz); ≤22.0dB / 100m (35MHz); ≤32.0dB / 100m (80MHz); ≤36.0dB / 100m (100MHz), phase delay ≤4.3ns / m, conductor-to-conductor capacitance ≤4.7nF / 100m; conductor-to-shielding capacitance ≤7.9nF / 100m, weight ≤18.0g / m, total irradiation dose ≥1Mrad, vacuum outgassing, total non-metallic total mass loss (TML) ≤1%, condensable volatile matter (CVCM) ≤0.1%;

[0025] Furthermore, two ground wire cores 9 are arranged inside the aluminum foil layer 3 , and a layer of cross-linked polyethylene 8 is extruded outside the two ground wire cores 9 . The two groups of ground wire cores 9 and the two groups of conductor wires 7 are twisted together to form a cable core 4 .

[0026] Furthermore, the insulating layer 5 is wrapped with a polyvinyl chloride film. Polyvinyl chloride is widely used in low-voltage cables due to its good processability, electromechanical properties, flame retardancy and low cost.

[0027] Furthermore, the shielding layer 2 is woven with tinned copper wire. The copper wire braiding and tinned copper wire braiding shielding layers have good resistance to longitudinal tension and can make the cable more flexible. Among them, the tinned copper wire shielding has better oxidation resistance, is light, soft, moisture-proof, not easy to oxidize, and has a ground wire connection, which is easy and time-saving to install.

[0028] Furthermore, the aluminum foil layer 3 is made of polyimide composite aluminum foil.

[0029] Furthermore, the sheath 1 is made of polyvinyl chloride.

[0030] In summary, this solution has the characteristics of wear resistance, cold resistance, aging resistance, and corrosion resistance, ensuring the stable transmission of signals between devices. This solution has a wide operating temperature range of -100 to 200°C, and the dielectric attenuation is low, thereby reducing the attenuation of the cable.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corrosion-resistant high-voltage insulated cable comprising two compressed conductor wires (7), characterized in that: The two conductor lines (7) are respectively a 1553B data line and a GSWF-3507 high-frequency, low-loss, and stable-phase cable line; the outsides of the two conductor lines (7) are both wrapped with a microporous belt (6); and the outsides of the microporous belt (6) are provided with an insulating layer (5); An aluminum foil layer (3) is commonly arranged outside the two insulating layers (5), a shielding layer (2) is arranged outside the aluminum foil layer (3), and a sheath (1) is wrapped around the outside of the shielding layer (2).

2. A corrosion-resistant high-voltage insulated cable according to claim 1, characterized in that: Two ground wire cores (9) are also arranged inside the aluminum foil layer (3), and a layer of cross-linked polyethylene (8) is extruded outside the two ground wire cores (9). The two groups of ground wire cores (9) and the two groups of conductor wires (7) are twisted together to form a cable core (4).

3. A corrosion-resistant high-voltage insulated cable according to claim 1, characterized in that: The insulating layer (5) is wrapped with a polyvinyl chloride film.

4. A corrosion-resistant high-voltage insulated cable according to claim 1, characterized in that: The shielding layer (2) is woven from tinned copper wires.

5. The corrosion-resistant high-voltage insulated cable according to claim 1, characterized in that: The aluminum foil layer (3) is made of polyimide composite aluminum foil.

6. A corrosion-resistant high-voltage insulated cable according to claim 1, characterized in that: The sheath (1) is made of polyvinyl chloride.

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