CN215577884U - Optical fiber composite high-voltage power cable - Google Patents

Abstract

The utility model relates to an optical fiber composite high-voltage power cable which comprises a plurality of stranded conductors, wherein insulating wire cores are extruded on the stranded conductors, buffer layers are wound on the insulating wire cores, optical fiber copper wire composite tapes are wound on the buffer layers, metal shielding layers are coated on the optical fiber copper wire composite tapes, and cable outer sheaths are extruded outside the metal shielding layers; the optical fiber copper wire composite belt is arranged in the optical fiber composite high-voltage power cable, so that the power cable is added with the functions of communication, optical fiber temperature measurement and the like; the novel cable is stable in structure and easy to process, optical fibers are not easy to damage, and optical fiber connection can be realized during cable joint.

Description

Optical fiber composite high-voltage power cable

Technical Field

The utility model belongs to the technical field of cables, and particularly relates to an optical fiber composite high-voltage power cable.

Background

In cable applications, composite optical fibers are required for communication or temperature measurement. The optical fiber composite can be built-in or external. Each has the advantages and the disadvantages, and can be selected and used in different occasions. The built-in optical fiber composite is generally used for directly compounding an optical fiber in a metal shielding layer or a conductor.

In the prior art, optical fibers are directly compounded in a cable, so that the structure of the cable is influenced to a certain extent. The metal shielding layer is directly compounded inside the metal shielding layer, so that the metal shielding layer and the buffer layer are not contacted uniformly, and potential safety hazards are caused when the cable runs; laying inside the conductor leads to a very complicated cable joint process.

In view of the above technical problems, improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides the optical fiber composite high-voltage power cable which is simple in structure and ingenious in design and is suitable for power frequency rated voltage of 66 kV-500 kV transmission and distribution lines for distributing electric energy.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows: the utility model provides an optical fiber composite high voltage power cable, includes stranded conductor, extrudees the package insulation core on the stranded conductor, winds the package buffer layer on the insulation core, winds the package optical fiber copper wire composite band on the buffer layer, and cladding metallic shield layer, metallic shield layer extrude the package cable oversheath outward on the optical fiber copper wire composite band.

As a preferable scheme of the present invention, a semi-conductive wrapping layer is disposed between the stranded conductor and the insulated wire core.

As a preferred scheme of the utility model, the insulated wire core comprises an inner shielding layer, an insulating layer and an outer shielding layer which are sequentially arranged; the surface of the stranded conductor is extruded with an inner shielding layer, the surface of the inner shielding layer is extruded with an insulating layer, and the surface of the insulating layer is extruded with an outer shielding layer.

In a preferred embodiment of the present invention, the buffer layer is a semiconductive tape.

In a preferred embodiment of the present invention, the number of optical fibers in the optical fiber copper wire composite tape is at least one.

As a preferable scheme of the utility model, the surface of the cable outer sheath is extruded with a conductive layer.

As a preferable scheme of the present invention, a bonding layer or an anti-corrosion layer is disposed between the cable outer sheath and the metal shielding layer.

As a preferable scheme of the utility model, the metal shielding layer is a corrugated aluminum sleeve, a flat aluminum sleeve, a lead sleeve, a loosely wound copper wire or an aluminum-plastic composite belt.

The utility model has the beneficial effects that:

1. the optical fiber copper wire composite belt is arranged in the optical fiber composite high-voltage power cable, so that the power cable is added with the functions of communication, optical fiber temperature measurement and the like; the novel cable is stable in structure and easy to process, optical fibers are not easy to damage, and optical fiber connection can be realized during cable joint.

2. According to the optical fiber composite high-voltage power cable, the structural design, the material selection and the key process technology of the cable are adopted, the detection result of the product performance is displayed, the cable is additionally provided with the built-in optical fiber, and the cable has the characteristics of simple processing process, safety, reliability and the like; the power distribution line is suitable for power frequency rated voltage 66 kV-500 kV power transmission and distribution lines for distributing electric energy.

3. The optical fiber copper wire composite tape is loosely wound on the surface of the buffer layer, the copper wire has a supporting and protecting effect on the optical fiber, the structure does not influence the electrical contact between the buffer tape and the metal shielding layer, and the buffer tape is not easily damaged in the processing process.

4. According to the optical fiber composite high-voltage power cable, the optical fiber is composited in the cable, and the optical fiber composite high-voltage power cable has the characteristics of accurate temperature measurement and the like.

5. The optical fiber composite high-voltage power cable can be laid on special occasions such as pipelines, and the optical fiber is not easy to be damaged in the processing and laying processes.

6. The utility model has less maintenance workload.

7. The utility model is convenient for jointing.

Drawings

Fig. 1 is a plan view of an optical fiber composite high-voltage power cable according to an embodiment of the utility model.

Reference numbers in the figures: the cable comprises a stranded conductor 1, a semi-conductive wrapping layer 2, an inner shielding layer 3, an insulating layer 4, an outer shielding layer 5, a buffer layer 6, an optical fiber copper wire composite tape 7, a metal shielding layer 8, an adhesive layer 9, a cable outer sheath 10 and a conducting layer 11.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in fig. 1, the optical fiber composite high-voltage power cable provided by the present embodiment includes a plurality of stranded conductors 1, where the number of the stranded conductors 1 is 3; the stranded conductor 1 is copper or aluminum; an insulating wire core is extruded on the stranded conductor 1, a buffer layer 6 is wound on the insulating wire core, an optical fiber copper wire composite belt 7 is wound on the buffer layer 6, a metal shielding layer 8 is coated on the optical fiber copper wire composite belt 7, and a cable outer sheath 10 is extruded outside the metal shielding layer 8; a semi-conductive wrapping layer 2 is arranged between the stranded conductor 1 and the insulated wire core; the optical fiber copper wire composite belt is arranged in the optical fiber composite high-voltage power cable, so that the power cable is added with the functions of communication, optical fiber temperature measurement and the like; the novel cable is stable in structure and easy to process, optical fibers are not easy to damage, and optical fiber connection can be realized during cable joint.

Specifically, the insulated wire core comprises an inner shielding layer 3, an insulating layer 4 and an outer shielding layer 5 which are sequentially distributed; the surface of the stranded conductor 1 is extruded with an inner shielding layer 3, the surface of the inner shielding layer 3 is extruded with an insulating layer 4, and the surface of the insulating layer 4 is extruded with an outer shielding layer 5.

According to the optical fiber composite high-voltage power cable, the structural design, the material selection and the key process technology of the cable are adopted, the detection result of the product performance is displayed, the cable is additionally provided with the built-in optical fiber, and the cable has the characteristics of simple processing process, safety, reliability and the like; the power distribution line is suitable for power frequency rated voltage 66 kV-500 kV power transmission and distribution lines for distributing electric energy.

The buffer layer 6 is a semiconductive material. The number of optical fibers in the optical fiber copper wire composite belt 7 can be single or multiple according to requirements, and the diameter of the optical fibers can be designed according to the structure of the cable; the optical fiber copper wire composite tape is loosely wound on the surface of the buffer layer, the copper wire has a supporting and protecting effect on the optical fiber, the structure does not influence the electrical contact between the buffer tape and the metal shielding layer, and the buffer tape is not easily damaged in the processing process.

A conducting layer 11 is extruded on the surface of the cable outer sheath 10, and a bonding layer 9 is arranged between the cable outer sheath 10 and the metal shielding layer 8; the adhesive layer 9 may be an anticorrosive layer.

The metal shielding layer 8 is a corrugated aluminum sleeve, a flat aluminum sleeve, a lead sleeve, a loosely wound copper wire or an aluminum-plastic composite belt.

The process specification of the optical fiber composite high-voltage power cable specifically comprises the following steps:

1. drawing copper or aluminum wires;

2. stranding copper wires or aluminum wires;

3. processing an inner shielding layer 3, an insulating layer 4 and an outer shielding layer 5;

4. processing the semiconductive layer 6;

5. wrapping an optical fiber copper wire composite tape 7;

6. processing the metal shielding layer 8;

7. processing the cable sheath 10 and the conductive layer 11, etc

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals in the figures are used more here: the cable comprises a stranded conductor 1, a semi-conductive wrapping layer 2, an inner shielding layer 3, an insulating layer 4, an outer shielding layer 5, a buffer layer 6, an optical fiber copper wire composite tape 7, a metal shielding layer 8, an adhesive layer 9, a cable outer sheath 10, a conductive layer 11 and other terms, but the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (8)

1. An optical fiber composite high-voltage power cable is characterized in that: including stranded conductor (1), crowded package insulation core on stranded conductor (1), around package buffer layer (6) on insulation core, around package optic fibre copper wire composite band (7) on buffer layer (6), cladding metallic shield layer (8) on optic fibre copper wire composite band (7), crowded package cable oversheath (10) outward of metallic shield layer (8).

2. An optical fiber composite high voltage power cable according to claim 1, characterized in that a semi-conductive wrapping (2) is arranged between the stranded conductor (1) and the insulated wire core.

3. The optical fiber composite high-voltage power cable according to claim 1 or 2, wherein the insulated wire core comprises an inner shielding layer (3), an insulating layer (4) and an outer shielding layer (5) which are sequentially arranged; the surface of the stranded conductor (1) is wrapped with an inner shielding layer (3) in an extruding mode, the surface of the inner shielding layer (3) is wrapped with an insulating layer (4) in an extruding mode, and the surface of the insulating layer (4) is wrapped with an outer shielding layer (5) in an extruding mode.

4. An optical fiber composite high voltage power cable according to claim 1, wherein said buffer layer (6) is a semi-conducting tape.

5. Optical fiber composite high voltage power cable according to claim 1, characterized in that the number of optical fibers in the optical fiber copper wire composite tape (7) is at least one.

6. An optical fiber composite high voltage power cable according to claim 1, wherein the cable outer sheath (10) is surface-extruded with a conductive layer (11).

7. An optical fiber composite high voltage power cable according to claim 6, characterized in that a bonding layer or an anti-corrosion layer (9) is arranged between the cable outer sheath (10) and the metal shielding layer (8).

8. An optical fiber composite high voltage power cable according to claim 7, characterized in that the metallic shielding layer (8) is a corrugated aluminum sheath, a flat aluminum sheath, a lead sheath, a loose-wound copper wire or an aluminum-plastic composite tape.

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