CN212847849U

CN212847849U - High-medium-low voltage core hybrid cable

Info

Publication number: CN212847849U
Application number: CN202021519019.4U
Authority: CN
Inventors: 周传华; 孔庆师
Original assignee: Suzhou Deshengheng Cable Technology Co ltd
Current assignee: Suzhou Deshengheng Cable Technology Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-03-30
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses a high-medium low-voltage core hybrid cable, which comprises a high-voltage core wire, a medium-voltage core wire and a low-voltage core wire, wherein a first protective sleeve, a first flame-retardant thermal insulation layer and a first shielding layer are arranged outside the high-voltage core wire, the medium-voltage core wire is arranged outside the first shielding layer through a first filling body, a second protective sleeve, an inner wrapping tape and a second flame-retardant thermal insulation layer are arranged outside the medium-voltage core wire, a second shielding layer is arranged outside the second flame-retardant thermal insulation layer, the low-voltage core wire is arranged outside the second shielding layer through a second filling body, a third protective sleeve, a third shielding layer, an armor layer and an outer protective sleeve are arranged outside the low-voltage core wire, the utility model can realize the conveying treatment of various high-medium-voltage circuits and low-voltage circuits through the high-voltage core wire, the medium-voltage core wire and the low-voltage core wire, the cable has excellent high temperature resistance, insulating property, anti-interference property, flame retardant property and tensile toughness.

Description

High-medium-low voltage core hybrid cable

Technical Field

The utility model relates to the technical field of cables, specifically a high school low voltage core hybrid cable.

Background

Cable is a generic term for optical cables, electrical cables, and the like. The cable has many purposes, is mainly used for controlling installation, connecting equipment, transmitting power and other multiple functions, and is a common and indispensable object in daily life. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like. The electric wire and cable products adopted by the electric power system mainly comprise overhead bare wires, bus bars, electric power cables, branch cables, electromagnetic wires, electric equipment wires and cables for electric power equipment and the like. With the rapid development of science and technology and economy, the requirements on cables are higher and higher in the design and construction of key foundation engineering construction. The power cables are habitually divided into weak current cables 450/750V and below, low voltage cables 0.6/1kV, medium voltage cables 3-35kV, high voltage cables 35-110kV and ultrahigh voltage cables 110-750kV according to different voltage grades.

The existing cable needs to be provided with different cable lines when medium voltage and low voltage are conveyed, so that a large amount of resources are input, energy is not conveniently saved, and the conveying treatment of different electric quantities is difficult to meet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high well low pressure core hybrid cable to solve current cable, need set up different cable run when carrying middling pressure and low pressure, cause a large amount of drops into of resource, be not convenient for carry on energy-conservation, be difficult to satisfy the transport processing problem of different electric quantities.

In order to achieve the above object, the utility model provides a following technical scheme: a high-medium low-voltage core hybrid cable comprises a high-voltage core wire, a medium-voltage core wire and a low-voltage core wire, wherein a first protective sleeve is arranged outside the high-voltage core wire, a first flame-retardant heat-insulating layer is arranged on the outer side of the first protective sleeve, a first shielding layer is arranged on the outer side of the first flame-retardant heat-insulating layer, a middle-pressure core wire is arranged at the outer side of the first shielding layer through a first filling body, a second protective sleeve is arranged at the outer side of the middle-pressure core wire, an inner wrapping tape is arranged at the outer side of the first filling body, a second flame-retardant heat-insulating layer is arranged at the outer side of the inner wrapping tape, a second shielding layer is arranged on the outer side of the second flame-retardant heat-insulating layer, a low-voltage core wire is arranged on the outer side of the second shielding layer through a second filling body, a third protective sleeve is arranged on the outer side of the low-voltage core wire, a third shielding layer is arranged on the outer side of the third protective sleeve, an armor layer is installed on the outer side of the third shielding layer, and an outer protective sleeve is arranged on the outer side of the armor layer.

Furthermore, the low-voltage core wire and the medium-voltage core wire are both provided with a plurality of wires, and the inner conductors of the low-voltage core wire and the medium-voltage core wire are made of tinned copper.

Further, the first protective sleeve, the second protective sleeve and the third protective sleeve are all PUR or PVC protective structure layers.

Furthermore, the first flame-retardant heat-insulating layer and the second flame-retardant heat-insulating layer both adopt low-smoke halogen-free flame-retardant layers.

Furthermore, the first filling body and the second filling body are both made of PP braided ropes.

Further, the first shielding layer, the second shielding layer and the third shielding layer all adopt aluminum foil layers with different thicknesses, and the thickness ratio of the first shielding layer to the second shielding layer to the third shielding layer is 2: 1.5:1.

Further, the outer protective sleeve adopts a silicon rubber protective structure.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a high-pressure heart yearn, middling pressure heart yearn and the low pressure heart yearn that are equipped with can realize the transport of the multiple circuit of high-middle-low pressure and handle, have improved the flexibility that uses, need not to erect multiple cable frame and be convenient for carry on energy-conservingly.

2. The utility model discloses and through fire-retardant insulating layer, shielding layer, lag and the armor that is equipped with for the cable has good high temperature resistance, insulating properties, anti-interference, fire behaviour and tensile toughness, is convenient for use under the adverse circumstances of high strength.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a cross-sectional view of the overall structure of the present invention.

In the figure: 1. a high voltage core wire; 2. a first protective cover; 3. a first flame-retardant heat-insulating layer; 4. a first shielding layer; 5. a medium-voltage core wire; 6. a second protective cover; 7. a first filling body; 8. an inner wrapping belt; 9. a second flame-retardant heat-insulating layer; 10. a second shielding layer; 11. a low-voltage core wire; 12. a third protective sheath; 13. a second filling body; 14. a third shielding layer; 15. an armor layer; 16. an outer protective sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, in an embodiment of the present invention, a high, medium and low voltage core hybrid cable includes a high voltage core 1, a medium voltage core 5 and a low voltage core 11, which can realize the transportation of various high, medium and low voltage circuits, improves the flexibility of use, and is convenient for energy saving without erecting various cable racks, a first protective cover 2 is disposed outside the high voltage core 1, a first flame retardant insulation layer 3 is disposed outside the first protective cover 2, which is convenient for performing heat insulation and flame retardant treatment on the outside of the high voltage core 1, a first shielding layer 4 is disposed outside the first flame retardant insulation layer 3, a medium voltage core 5 is disposed outside the first shielding layer 4 through a first filling body 7, which is convenient for performing the transportation of medium voltage circuits, a second protective cover 6 is disposed outside the medium voltage core 5, an inner wrapping tape 8 is disposed outside the first filling body 7, and a second flame retardant insulation layer 9 is disposed outside the inner wrapping tape, be convenient for carry out thermal-insulated fire-retardant processing to the 5 outsides of middling pressure heart yearn, the fire-retardant insulating layer 9 outsides of second is provided with second shielding layer 10, low-pressure heart yearn 11 is installed through second obturator 13 in the second shielding layer 10 outside, the 11 outsides of low-pressure heart yearn are provided with third protecting sheathing 12, the 12 outsides of third protecting sheathing are provided with third shielding layer 14, armor 15 is installed in the 14 outsides of third shielding layer, the 15 outsides of armor is provided with outer lag 16, through the fire-retardant insulating layer that is equipped with, the shielding layer, lag and armor 15, make the cable have good high temperature resistance, insulating properties, anti-interference, fire behaviour and tensile toughness, be convenient for use under the abomina.

Preferably, the low-voltage core wire 11 and the medium-voltage core wire 5 are both provided with a plurality of wires, and the inner conductors of the low-voltage core wire 11 and the medium-voltage core wire 5 are made of tinned copper, so that the processing of the transmitted electric quantity is facilitated.

Preferably, the first protecting sleeve 2, the second protecting sleeve 6 and the third protecting sleeve 12 are all PUR or PVC protecting structure layers, so that the high-voltage core wire 1, the medium-voltage core wire 5 and the low-voltage core wire 11 are protected in an insulating way.

Preferably, the first flame-retardant heat-insulating layer 3 and the second flame-retardant heat-insulating layer 9 both adopt low-smoke halogen-free flame-retardant layers, so that flame-retardant treatment is facilitated, and the use safety is improved.

Preferably, the first filling body 7 and the second filling body 13 are both made of PP braided ropes, so that the inside of the cable is supported and protected.

Preferably, the first shielding layer 4, the second shielding layer 10 and the third shielding layer 14 all adopt aluminum foil layers with different thicknesses, and the thickness ratio of the first shielding layer 4 to the second shielding layer 10 to the third shielding layer 14 is 2: 1.5:1, and is convenient for shielding and protecting the core wires.

Preferably, the outer protective sleeve 16 is of a silicon rubber protective structure, so that high-temperature resistant protection treatment can be conveniently carried out on the outer side of the cable.

The utility model discloses a theory of operation and use flow: the high-voltage core wire 1, the medium-voltage core wire 5 and the low-voltage core wire 11 are arranged, so that the conveying treatment of various high, medium and low-voltage circuits can be realized, the use flexibility is improved, and various cable racks are not required to be erected, so that the energy is saved; and through the fire-retardant insulating layer, shielding layer, lag and the armor 15 that are equipped with for the cable has good high temperature resistance, insulating properties, anti-interference, fire behaviour and tensile toughness, is convenient for use under the high strength adverse circumstances.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high well low tension core hybrid cable, includes high tension core (1), medium tension core (5) and low tension core (11), its characterized in that: the high-voltage core wire (1) is provided with a first protective sleeve (2) on the outer side, the first protective sleeve (2) is provided with a first flame-retardant heat-insulating layer (3) on the outer side, the first flame-retardant heat-insulating layer (3) is provided with a first shielding layer (4) on the outer side, the first shielding layer (4) is provided with a medium-voltage core wire (5) through a first filling body (7), the medium-voltage core wire (5) is provided with a second protective sleeve (6) on the outer side, an inner wrapping belt (8) is arranged on the outer side of the first filling body (7), a second flame-retardant heat-insulating layer (9) is arranged on the outer side of the inner wrapping belt (8), a second shielding layer (10) is arranged on the outer side of the second flame-retardant heat-insulating layer (9), a low-voltage core wire (11) is installed on the outer side of the second shielding layer (10, the third protection sheath (12) outside is provided with third shielding layer (14), armor (15) are installed in third shielding layer (14) outside, armor (15) outside is provided with outer lag (16).

2. A hybrid cable with high, medium and low voltage cores according to claim 1, characterized in that: the low-voltage core wire (11) and the medium-voltage core wire (5) are both provided with a plurality of wires, and the inner conductors of the low-voltage core wire (11) and the medium-voltage core wire (5) are made of tinned copper.

3. A hybrid cable with high, medium and low voltage cores according to claim 1, characterized in that: and the first protective sleeve (2), the second protective sleeve (6) and the third protective sleeve (12) are all PUR or PVC protective structure layers.

4. A hybrid cable with high, medium and low voltage cores according to claim 1, characterized in that: the first flame-retardant heat-insulating layer (3) and the second flame-retardant heat-insulating layer (9) both adopt low-smoke halogen-free flame-retardant layers.

5. A hybrid cable with high, medium and low voltage cores according to claim 1, characterized in that: the first filling body (7) and the second filling body (13) are both made of PP braided ropes.

6. A hybrid cable with high, medium and low voltage cores according to claim 1, characterized in that: the first shielding layer (4), the second shielding layer (10) and the third shielding layer (14) are all aluminum foil layers with different thicknesses, and the thickness ratio of the first shielding layer (4), the second shielding layer (10) and the third shielding layer (14) is 2: 1.5:1.

7. A hybrid cable with high, medium and low voltage cores according to claim 1, characterized in that: the outer protective sleeve (16) is of a silicon rubber protective structure.