CN111029003A

CN111029003A - Insulating flexible power cable suitable for high-altitude use environment

Info

Publication number: CN111029003A
Application number: CN201911378091.1A
Authority: CN
Inventors: 孙磊; 王康; 肖本国; 张驰; 何立群; 束忠林; 单宽宽; 王影
Original assignee: Anhui Guodian Cable Co ltd
Current assignee: Anhui Guodian Cable Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-04-17
Anticipated expiration: 2039-12-27
Also published as: CN111029003B

Abstract

The invention relates to an insulated flexible power cable suitable for a high-altitude use environment, which comprises an outer cable protection cover and a first wire core distributed in the center of the outer cable protection cover, wherein the outer cable protection cover is provided with a plurality of wire core units distributed circumferentially around the first wire core, a first energy absorption area with a fan-shaped section for absorbing external extrusion force is arranged between every two connected wire core units, and a first filling layer for limiting the position of a second wire core is arranged between the first wire core and the wire core units. The first energy absorption area, the second energy absorption area and the third energy absorption area support the first wire core, the second wire core and the third wire core, and meanwhile, the first energy absorption area, the second energy absorption area and the third energy absorption area can generate deformation absorption extrusion force to protect the first wire core, the second wire core and the third wire core.

Description

Insulating flexible power cable suitable for high-altitude use environment

Technical Field

The invention relates to the field of cable production and manufacturing, in particular to an insulated flexible power cable suitable for a high-altitude use environment.

Background

Along with the development of the country, high buildings in cities stand, more and more remote areas are electrified, and cables need to be erected at high altitude along with the deep laying of the cables; the existing cable cannot be used for a long time and is extremely easy to damage under severe conditions of high temperature, strong wind and the like experienced in mountainous areas and urban high-rise buildings for a long time, and due to the fact that the mountainous areas are far away, the climate is complex, construction of the urban high-rise buildings is inconvenient, engineering personnel cannot rush repair in time, the complex environment during rush repair is endangered to the life safety of the engineering personnel, and in order to prolong the service life of the cable in high altitude and severe environment, the insulating flexible power cable suitable for the high altitude service environment is needed to solve the problems.

Disclosure of Invention

In order to solve the technical problems, the invention provides an insulated flexible power cable suitable for a high-altitude use environment. The technical problem to be solved by the invention is realized by adopting the following technical scheme:

the utility model provides an insulating flexible power cable suitable for high altitude service environment, includes the outer safety cover of cable, still includes a core that distributes at the outer safety cover center of cable, the outer safety cover of cable is equipped with a plurality of sinle silk unit that is circumference distribution around a core, is equipped with the cross-section between two sinle silk units and is fan-shaped energy-absorbing district in order to absorb external extrusion force, be equipped with the filling layer of restriction No. two core positions between a core and the sinle silk unit.

The sinle silk unit is including hugging closely No. two sinle silks of a filling layer, the sinle silk unit is still including being a pair of No. three sinle silks of circumference distribution around cable outer protective cover rotation center, be equipped with No. two energy-absorbing districts that restriction No. three sinle silks position and can contract to No. two sinle silks when receiving the extrusion force between No. two sinle silks and No. three sinle silks.

And a third energy absorption area which corresponds to the wire core unit and can contract towards the circle center direction of the cable outer protection cover when being extruded is arranged in the first filling layer.

The cable is characterized in that a fireproof layer is distributed in the cable outer protective cover, and a shielding layer is arranged between the fireproof layer and the cable core unit.

And a second filling layer for limiting the position of the wire core unit is arranged between every two adjacent wire core units.

The invention has the beneficial effects that: the first energy absorption area, the second energy absorption area and the third energy absorption area support the first wire core, the second wire core and the third wire core, and meanwhile, the first energy absorption area, the second energy absorption area and the third energy absorption area can generate deformation absorption extrusion force to protect the first wire core, the second wire core and the third wire core.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic front view of the present invention; .

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be described more clearly and more completely with reference to the drawings in the following embodiments, and it is understood that the described embodiments are only a part of the present invention, rather than all of the present invention, and based on the embodiments, other embodiments obtained by those skilled in the art without inventive exercise are within the protection scope of the present invention.

As shown in figure 1, an insulating flexible power cable suitable for high altitude service environment, including cable outer protective cover 1, still including distributing No. 2 core at cable outer protective cover 1 center, cable outer protective cover 1 is equipped with a plurality of sinle silk unit 3 that is the circumference around No. 2 core, is equipped with the energy-absorbing district 4 that the cross-section is fan-shaped in order to absorb external extrusion force between two sinle silk units 3 that link to each other, be equipped with a filling layer 5 that restricts No. 3 positions of No. two sinle silks between No. 2 core and the sinle silk unit 3.

The cable core unit 3 comprises a second number cable core 31 tightly attached to the first number filling layer 5 in a winding mode, the cable core unit 3 further comprises a pair of third number cable cores 32 circumferentially distributed around the rotation center of the cable outer protective cover 1, and a second number energy absorption area 33 which limits the positions of the third number cable cores 32 and can contract towards the second number cable core 31 when being subjected to extrusion force is arranged between the second number cable core 31 and the third number cable cores 32; the first energy absorption area 4 is abutted with the third wire core 32, a third filling layer 10 is arranged between the third wire cores 32, and the third filling layer 10 is matched with the first energy absorption area 4 to limit the position of the third wire core 32; no. two energy-absorbing district 33 restriction No. two cores 31 and No. three core 32 between the interval, prevent when receiving the extrusion force, No. two cores 31 and No. three core 32 take place the displacement.

No. 5 is equipped with in the filling layer and corresponds with sinle silk unit 3 and can be to the No. three energy-absorbing district 6 of 1 centre of a circle direction shrink of cable safety cover when receiving the extrusion force, No. three energy-absorbing district 6 prevents that No. two sinle silks 31 and No. three sinle silks 32 from excessively deforming and leading to a sinle silk 2 to damage.

A fireproof layer 7 is distributed in the cable outer protective cover 1, and a shielding layer 8 is arranged between the fireproof layer 7 and the wire core unit 3; the first wire core 2, the second wire core 31 and the third wire core 32 are all sleeved with insulating layers 11.

Be equipped with No. two filling layer 9 of restriction sinle silk unit 3 position between two adjacent sinle silk units 3.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an insulating flexible power cable suitable for high altitude service environment, includes cable safety cover (1), its characterized in that: still including distributing a core (2) at cable outer protective cover (1) center, cable outer protective cover (1) is equipped with a plurality of sinle silk unit (3) that are the circumference and distribute around a core (2), is equipped with between two sinle silk units (3) that link to each other that the cross-section is fan-shaped in order to absorb an energy-absorbing district (4) of external extrusion force, be equipped with a filling layer (5) that restrict No. two core (3) positions between a core (2) and sinle silk unit (3).

2. An insulated flexible power cable suitable for use in high altitude environments as claimed in claim 1, wherein: sinle silk unit (3) are including hugging closely No. two sinle silks (31) of a filling layer (5), sinle silk unit (3) are still including a pair of No. three sinle silks (32) that are the circumference and distribute around cable outer protective cover (1) center of rotation, be equipped with between No. two sinle silks (31) and No. three sinle silks (32) and restrict No. two energy-absorbing districts (33) that No. three sinle silks (32) positions and can contract to No. two sinle silks (31) when receiving the extrusion force.

3. An insulated flexible power cable suitable for use in high altitude environments as claimed in claim 1, wherein: and a third energy absorption area (6) which corresponds to the wire core unit (3) and can contract towards the circle center direction of the cable outer protection cover (1) when being subjected to extrusion force is arranged in the first filling layer (5).

4. An insulated flexible power cable suitable for use in high altitude environments as claimed in claim 1, wherein: the cable outer protective cover is characterized in that a fireproof layer (7) is distributed in the cable outer protective cover (1), and a shielding layer (8) is arranged between the fireproof layer (7) and the cable core unit (3).

5. An insulated flexible power cable suitable for use in high altitude environments as claimed in claim 1, wherein: a second filling layer (9) for limiting the position of the wire core unit (3) is arranged between two adjacent wire core units (3).