CN210443336U

CN210443336U - Cold-resistant power cable

Info

Publication number: CN210443336U
Application number: CN201921160773.0U
Authority: CN
Inventors: 赵启年; 安学军
Original assignee: Western Cable Shaanxi Co Ltd
Current assignee: Western Cable Shaanxi Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-05-01
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses a cold-resistant power cable, including four group's cables, every group cable all includes two cable heart yearns and the branch shielding layer of parcel outside the cable core line, the cable heart yearn include the conductor, and outer isolation layer and the insulating layer of conductor, the insulating layer has first filler core with dividing the gap department that forms between the shielding layer, and four group's cables have set gradually total shielding layer, cold-resistant layer, silicon rubber extrusion layer, weaving layer and armor outward, and the gap department that forms between four group's cables and the total shielding layer has the second filler core, the armor outside still the cladding has ethylene chlorotrifluoroethylene copolymer oversheath layer. The utility model discloses the structure sets up rationally, and is whole airtight, has better waterproof, cold-resistant effect that keeps warm, uses in alpine region and can not be by the frost crack, can effectually prevent inside the alpine temperature transmission cable, provides the guarantee for the normal supply of electric power.

Description

Cold-resistant power cable

Technical Field

The utility model relates to a power cable technical field specifically is a cold-resistant power cable.

Background

The power cable is used for transmitting and distributing electric energy, the main body of the power cable is a built-in conductor, an insulating layer and a sheath layer are added on the conductor, and the power cable with the insulating protection structure is convenient for achieving safe electricity utilization. The power cable is erected in the open air under the normal condition, is greatly influenced by the natural environment, especially the power cable erected in the open air in a severe cold area with the temperature of more than 20 ℃ below zero in winter is not enough in cold resistance and waterproof capacity due to an external insulating layer and a sheath layer, and is easy to crack and age, so that the service life of the matched power cable is far shorter than expected, the power cable is frequently maintained or replaced, the use cost of a user is increased on the one hand, the power supply quality is reduced on the other hand, and the power cannot be supplied in time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cold-resistant power cable to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a cold-resistant power cable, includes four groups of cables, every group cable all includes two cable core wires and wraps up the branch shielding layer outside the cable core wire, the cable core wire include the conductor, and outer isolation layer and the insulating layer of conductor, the insulating layer has first filler core with dividing the gap department that forms between the shielding layer, and four groups of cables have set gradually total shielding layer, cold-resistant layer, silicon rubber extrusion layer, weaving layer and armor outward, and the gap department that forms between four groups of cables and the total shielding layer has the second filler core, the armor outside still the cladding has ethylene chlorotrifluoroethylene copolymer oversheath layer.

Furthermore, the insulating layer is made of PLC or PUR material with the thickness of 1-6 mm.

Furthermore, the sub-shielding layer is a tinned copper wire spiral winding shielding layer, and the total shielding layer is a non-metal shielding layer made of polyolefin and carbon black conductive composite materials.

Further, the first filling core is a waterproof rubber, and the waterproof rubber is bonded between the insulating layer and the sub-shielding layer.

Further, the second filling core is made of foam plastic, and the foam plastic is bonded between the four groups of cables and the total shielding layer.

Furthermore, the cold-resistant layer is a cold-resistant polyurethane wrapping layer.

Furthermore, the woven layer is formed by vertically weaving ceramic plastic wires and aramid fiber wires according to 2-layer-1.

Furthermore, the armor layer is a nickel-plated steel wire woven armor layer, and the diameter of the nickel-plated steel wire is 0.2-0.4 mm.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model discloses the structure sets up rationally, it is whole airtight, the first packing core of adoption is waterproof rubber, waterproof rubber bonding is at the insulating layer and divides between the shielding layer, better waterproof performance has, the life and the security of cable have been improved greatly, the second packing core of adoption is foamed plastic, foamed plastic is between four group's cable and total shielding layer, the thermal function of maintaining has, thereby reach cold-resistant effect of cold-proof, adopt and weave the weaving layer that forms according to 2 stacks 1 perpendicularly by pottery plastic filament and aramid fiber silk, effectively improve the flexibility of whole cable, the ethylene chlorotrifluoroethylene copolymer oversheath layer of adoption itself has the characteristics of high cold-resistant, can not be by the frost crack in alpine region use, can effectually prevent inside the alpine temperature transmission cable, provide the guarantee for the normal supply of electric power.

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 schematic structural diagram of the present invention.

In the figure: 1. the cable comprises a cable body, 11, a cable core wire, 111, a conductor, 112, an isolation layer, 113, an insulating layer, 12, a sub-shielding layer, 2, a first filling core, 3, a total shielding layer, 4, a second filling core, 5, a cold-resistant layer, 6, a silicon rubber extrusion layer, 7, a braided layer 8, an armor layer, 9 and an ethylene chlorotrifluoroethylene copolymer outer sheath layer.

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, the utility model provides a cold-resistant power cable, including four groups of cables, each group of cable 1 all includes two cable wires 11 and the branch shielding layer 12 that wraps up outside the cable wire 11, the cable wire 11 include conductor 111, and isolation layer 112 and insulating layer 113 outside conductor 111, the gap department that forms between insulating layer 113 and the branch shielding layer 12 has first filler 2, first filler 2 is waterproof rubber, waterproof rubber bonds between insulating layer 113 and the branch shielding layer 12, four groups of cables are equipped with total shielding layer 3, cold-resistant layer 5, silicon rubber extrusion layer 6, weaving layer 7 and armor layer 8 outward in proper order, the gap department that forms between four groups of cables and total shielding layer 3 has second filler 4, second filler 4 is foamed plastic, foamed plastic bonds between four groups of cables and total shielding layer 3, the outside of the armor layer 8 is also coated with an ethylene chlorotrifluoroethylene copolymer outer sheath layer 9.

Wherein the insulating layer 113 is made of PLC or PUR material with the thickness of 1-6 mm; the sub-shielding layer 12 is a tinned copper wire spiral winding shielding layer, and the total shielding layer 3 is a non-metal shielding layer made of polyolefin and carbon black conductive composite materials; the cold-resistant layer 5 is a cold-resistant polyurethane wrapping layer; the weaving layer 7 is formed by vertically weaving ceramic plastic wires and aramid fiber wires according to 2-layer 1; the armor layer 8 is a nickel-plated steel wire woven armor layer, and the diameter of the nickel-plated steel wire is 0.2-0.4 mm.

The utility model discloses the structure sets up rationally, it is whole airtight, the first packing core 2 of adoption is waterproof rubber, waterproof rubber bonding is at insulating layer 113 and divide between shielding layer 12, better waterproof performance has, the life and the security of cable have been improved greatly, the second packing core 4 of adoption is foamed plastic, foamed plastic is at four group's cables and total shielding layer 3 between, thermal function has the maintenance, thereby reach cold-resistant effect of keeping warm, adopt and weave perpendicularly the weaving layer 7 that forms according to 2 stacks 1 by pottery plastic filament and aramid fiber silk, effectively improve the flexibility of whole cable, the ethylene chlorotrifluoroethylene copolymer oversheath layer 9 of adoption itself has the characteristics of high cold-resistant, can not be frozen apart in the use of severe cold district, can effectually prevent inside the severe cold temperature transmission cable, provide the guarantee for the normal supply of electric power.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 cold-resistant power cable which characterized in that: including four groups of cables, every group cable (1) all includes two cable conductor (11) and wraps up branch shielding layer (12) outside cable conductor (11), cable conductor (11) including conductor (111), and outer isolation layer (112) of conductor (111) and insulating layer (113), insulating layer (113) and the gap department of dividing forming between shielding layer (12) have first filler core (2), four groups of cables set gradually total shielding layer (3), cold-resistant layer (5), silicon rubber extrusion layer (6), weaving layer (7) and armor (8) outward, the gap department of forming between four groups of cables and total shielding layer (3) has second filler core (4), armor (8) outside still the cladding has ethylene chlorotrifluoroethylene copolymer oversheath layer (9).

2. The cold-resistant power cable of claim 1, wherein: the insulating layer (113) is made of PLC or PUR material with the thickness of 1-6 mm.

3. The cold-resistant power cable of claim 1, wherein: the sub-shielding layer (12) is a tinned copper wire spiral winding shielding layer, and the total shielding layer (3) is a non-metal shielding layer made of polyolefin and carbon black conductive composite materials.

4. The cold-resistant power cable of claim 1, wherein: the first filling core (2) is made of waterproof rubber, and the waterproof rubber is bonded between the insulating layer (113) and the sub-shielding layer (12).

5. The cold-resistant power cable of claim 1, wherein: the second filling core (4) is made of foam plastic, and the foam plastic is bonded between the four groups of cables and the total shielding layer (3).

6. The cold-resistant power cable of claim 1, wherein: the cold-resistant layer (5) is a cold-resistant polyurethane wrapping layer.

7. The cold-resistant power cable of claim 1, wherein: the woven layer (7) is formed by vertically weaving ceramic plastic wires and aramid fiber wires according to 2-layer-1.

8. The cold-resistant power cable of claim 1, wherein: the armor layer (8) is a nickel-plated steel wire woven armor layer, and the diameter of the nickel-plated steel wire is 0.2-0.4 mm.