CN212303156U

CN212303156U - Parallel cluster overhead insulated cable

Info

Publication number: CN212303156U
Application number: CN202021052783.5U
Authority: CN
Inventors: 贺达园; 杨德丰; 贺轶宁; 储程
Original assignee: Jiangsu Huayuan Cable Co ltd
Current assignee: Jiangsu Huayuan Cable Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-01-05
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses a parallel built on stilts insulated cable tied in a bundle relates to cable technical field, for solving current parallel built on stilts insulated cable tied in a bundle mostly all life low, the problem that the overall cost is high. The novel water-cooled cable comprises a first conductor, a second conductor, a third conductor, insulating connecting ribs, a first marking protrusion, conductive wire cores, aluminum wires, carbon fiber wires and a semi-conductive water-blocking tape, wherein the second conductor is arranged above the first conductor, the third conductor is arranged on one side of the second conductor, the first conductor is fixedly connected with the second conductor and the third conductor respectively through the insulating connecting ribs, the second conductor is fixedly connected with the third conductor through the insulating connecting ribs, the second conductor is provided with the second marking protrusion on the outer wall, the conductive wire cores are arranged inside the second conductor and four conductive wire cores, the aluminum wires are arranged inside the four conductive wire cores, the carbon fiber wires are arranged inside the aluminum wires and eight carbon fiber wires, the second insulating layer is arranged on the outer wall of the aluminum wires, and the semi-conductive water-blocking tape is arranged inside the.

Description

Parallel cluster overhead insulated cable

Technical Field

The utility model relates to the technical field of cables, specifically be a parallel built on stilts insulated cable tied in a bundle.

Background

In the process of building and transforming rural power grids in China, for further enhancing scientific and technological progress work, national power companies improve the scientific and technological content of the power grids through continuous innovation and application of technologies so as to ensure safe, economic and reliable operation of the power grids. In the aspect of the construction of low-voltage power distribution networks in rural and urban communities, novel low-voltage insulated cables are gradually popularized to improve the reliability of the operation of a low-voltage power grid and reduce the line loss. The parallel bundling overhead insulated cable is a product popularized and applied in fifteen-technology planning of rural power grid construction of the national electric power company. The cable conductor is in a cluster combination, the tensile breaking force is multiplied compared with a single line, single-phase line breakage accidents are reduced, the operation safety factor is improved, the effects of lightning protection, electricity stealing prevention and electricity leakage prevention are obviously improved, and when the cable conductor is installed and laid, only some special matching tools are needed, cross arms and porcelain pieces are not needed, a large number of hardware fittings can be reduced, and the cable conductor has very obvious advantages compared with a common overhead insulated cable.

The conventional parallel bunched aerial insulated cable has the advantages of short service life and high overall cost; therefore, the existing requirements are not met, and a parallel bundling aerial insulated cable is provided for the purpose.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a parallel built on stilts insulated cable tied in a bundle to solve the current parallel built on stilts insulated cable tied in a bundle that proposes in the above-mentioned background art and all low in service life, problem that the overall cost is high.

In order to achieve the above object, the utility model provides a following technical scheme: a parallel cluster aerial insulated cable comprises a first conductor, a second conductor is arranged above the first conductor, a third conductor is arranged on one side of the second conductor, the first conductor is respectively and fixedly connected with the second conductor and the third conductor through insulated connecting ribs, the second conductor is fixedly connected with the third conductor through insulated connecting ribs, a second marking bulge is arranged on the outer wall of the second conductor, a first marking bulge is arranged on the insulated connecting ribs, conductive wire cores are arranged inside the second conductor, four conductive wire cores are arranged, aluminum wires are arranged inside the four conductive wire cores, carbon fiber wires are arranged inside the aluminum wires, eight carbon fiber wires are arranged inside the carbon fiber wires, a second insulating layer is arranged on the outer wall of the aluminum wires, a semi-conductive water-blocking tape is arranged inside the third conductor, and a round wire core is arranged inside the semi-conductive water-blocking tape, seven circular wire cores are arranged, a shielding layer is arranged on the outer wall of the semi-conductive water-blocking tape, and a first insulating layer is arranged on the outer wall of the shielding layer.

Preferably, water-blocking layers are arranged between the seven circular wire cores and the semi-conductive water-blocking tape.

Preferably, a heat dissipation layer is disposed on an outer wall of the first insulation layer.

Preferably, the outer walls of the first conductor, the second conductor and the third conductor are all provided with sheaths, and the sheaths and the insulating connecting ribs are of an integral structure.

Preferably, a reinforcing core is disposed inside the first conductor.

Preferably, the number of the second conductors is two, the number of the third conductors is two, and the second conductors and the third conductors are symmetrically arranged in a split mode through insulating connecting ribs.

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

1. the utility model discloses an adopt compact type symmetry split arrangement mode, make the inductance of wire reduce, increase the line space dielectric constant, the capacitance increases, makes circuit reactance reduce by a wide margin, finally realizes the dilatation and falls the purpose of losing, and the wire becomes the form combination tied in a bundle, and anti big power of failure is than the single line doubling increase, reduces single-phase broken string accident. Through the protruding setting of first sign arch and second sign, can the phase sequence discernment clear, prevent the wrong phase sequence that connects, through the setting of first conductor, the inside enhancement core of first conductor has better pulling force, and built on stilts span is big, practices thrift the cost.

2. Through the sheath, the setting of carbon fiber silk, a protection conductor, quality is stable relatively, the life of cable has been improved, when being pressed by the wind, the insulation between parallel is not pressed when the tension effect such as frost is frozen, operation safety coefficient improves, to the lightning protection, prevent electric larceny, the anticreep effect obviously improves, through the setting of semiconduction waterproofing layer and water blocking layer, better water blocking effect has been played, can take place the inflation after meeting water, thereby make the space between circular sinle silk and the semiconduction waterproofing area fill up, block the entering of water.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the internal structure of a third conductor according to the present invention;

fig. 3 is a schematic view of the internal structure of the conductive wire core of the present invention;

in the figure: 1. a first conductor; 2. a second conductor; 3. a third conductor; 4. a second index bump; 5. a first flag projection; 6. insulating the connecting ribs; 7. a circular wire core; 8. a water resistant layer; 9. a semiconductive water-blocking tape; 10. a shielding layer; 11. a first insulating layer; 12. a heat dissipation layer; 13. a sheath; 14. a conductive wire core; 15. carbon fiber filaments; 16. aluminum wires; 17. a reinforcing core; 18. a second insulating 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.

Referring to fig. 1-3, the present invention provides an embodiment: a parallel cluster aerial insulated cable comprises a first conductor 1, a second conductor 2 is arranged above the first conductor 1, a third conductor 3 is arranged on one side of the second conductor 2, the first conductor 1 is respectively and fixedly connected with the second conductor 2 and the third conductor 3 through an insulating connecting rib 6, the second conductor 2 is fixedly connected with the third conductor 3 through the insulating connecting rib 6, a second marking bulge 4 is arranged on the outer wall of the second conductor 2, a first marking bulge 5 is arranged on the insulating connecting rib 6, conductive wire cores 14 are arranged inside the second conductor 2, four conductive wire cores 14 are arranged, aluminum wires 16 are arranged inside the four conductive wire cores 14, carbon fiber wires 15 are arranged inside the aluminum wires 16, eight carbon fiber wires 15 are arranged on the outer wall of the aluminum wires 16, a second insulating layer 18 is arranged on the outer wall of the aluminum wires 16, and a semi-conductive water blocking tape 9 is arranged inside the third conductor 3, the inside of semi-conductive waterproofing strip 9 is provided with circular sinle silk 7, and circular sinle silk 7 is provided with seven, is provided with shielding layer 10 on the outer wall of semi-conductive waterproofing strip 9, and shielding layer 10 can avoid taking place partial discharge between conductor and the insulating layer, is provided with first insulating layer 11 on the outer wall of shielding layer 10.

Furthermore, a water blocking layer 8 is arranged between the seven circular wire cores 7 and the semi-conductive water blocking tape 9, the water blocking layer 8 has a good water blocking effect, and can expand when meeting water, so that gaps between the circular wire cores 7 and the semi-conductive water blocking tape 9 are filled, and water is prevented from entering.

Further, a heat dissipation layer 12 is arranged on the outer wall of the first insulation layer 11, and the heat dissipation layer 12 has a good heat dissipation effect.

Further, all be provided with sheath 13 on the outer wall of first conductor 1, second conductor 2 and third conductor 3, and sheath 13 and insulating splice bar 6 structure as an organic whole, sheath 13 is used for protecting the conductor, and the quality is relatively stable, has improved the life of cable.

Further, the reinforcing core 17 is arranged inside the first conductor 1, the reinforcing core 17 has good tensile force, the overhead span is large, and cost is saved.

Furthermore, the number of the second conductors 2 is two, the number of the third conductors 3 is two, the second conductors 2 and the third conductors 3 are symmetrically split through the insulating connecting ribs 6, the inductance of the lead is reduced, the dielectric constant between lines is increased, the capacitance is increased, the circuit reactance is greatly reduced by adopting a compact symmetrical splitting arrangement mode, and finally the purposes of capacity expansion and loss reduction are achieved.

The working principle is as follows: when the cable is used, the cable is combined in a bundling shape, and a compact symmetrical split arrangement mode is adopted, so that the inductance of the cable is reduced, the dielectric constant between lines is increased, the capacitance is increased, the circuit reactance is greatly reduced, the purposes of capacity expansion and loss reduction are finally realized, the large breaking resistance is multiplied compared with that of a single line, and the single-phase line breakage accident is reduced. Through the setting that first sign arch 5 and second mark arch 4, can the phase sequence discernment clearly, prevent the wrong phase sequence that connects, through the setting of first conductor 1, the inside enhancement core 17 of first conductor 1 has better pulling force, the built on stilts span is big, save cost, through sheath 13, the setting of carbon fiber 15, be used for protecting the conductor, the quality is relatively stable, the life of cable has been improved, receive the wind pressure, the insulation between the parallel is not stressed when frost isotension effect, operation factor of safety improves, to lightning protection, prevent electric larceny, the anticreep effect obviously improves, through the setting of semi-conductive waterproofing area 9 and waterproofing layer 8, better effect of blocking water has been played, can take place the inflation after meeting water, thereby make the space between circular sinle silk 7 and the semi-conductive waterproofing area 9 fill up, the entering of water proof.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A parallel bunched overhead insulated cable comprising a first conductor (1), characterized in that: the cable comprises a first conductor (1), a second conductor (2) is arranged above the first conductor (1), a third conductor (3) is arranged on one side of the second conductor (2), the first conductor (1) is respectively fixedly connected with the second conductor (2) and the third conductor (3) through an insulating connecting rib (6), the second conductor (2) is fixedly connected with the third conductor (3) through the insulating connecting rib (6), a second mark bulge (4) is arranged on the outer wall of the second conductor (2), a first mark bulge (5) is arranged on the insulating connecting rib (6), a conductive wire core (14) is arranged inside the second conductor (2), four conductive wire cores (14) are arranged, an aluminum wire (16) is arranged inside the conductive wire core (14), a carbon fiber wire (15) is arranged inside the aluminum wire (16), and eight carbon fiber wires (15) are arranged inside the carbon fiber wires (15), the aluminum wire comprises an aluminum wire (16), and is characterized in that a second insulating layer (18) is arranged on the outer wall of the aluminum wire (16), a semi-conductive water-blocking tape (9) is arranged inside the third conductor (3), a round wire core (7) is arranged inside the semi-conductive water-blocking tape (9), seven round wire cores (7) are arranged inside the semi-conductive water-blocking tape (9), a shielding layer (10) is arranged on the outer wall of the semi-conductive water-blocking tape (9), and a first insulating layer (11) is arranged on the outer wall of the shielding layer.

2. The parallel bundled overhead insulated cable of claim 1, characterized in that: and water-blocking layers (8) are arranged between the seven circular wire cores (7) and the semi-conductive water-blocking tapes (9).

3. The parallel bundled overhead insulated cable of claim 1, characterized in that: and a heat dissipation layer (12) is arranged on the outer wall of the first insulating layer (11).

4. The parallel bundled overhead insulated cable of claim 1, characterized in that: the outer walls of the first conductor (1), the second conductor (2) and the third conductor (3) are all provided with sheaths (13), and the sheaths (13) and the insulating connecting ribs (6) are of an integral structure.

5. The parallel bundled overhead insulated cable of claim 1, characterized in that: a reinforcing core (17) is arranged inside the first conductor (1).

6. The parallel bundled overhead insulated cable of claim 1, characterized in that: the two second conductors (2) are arranged, the two third conductors (3) are arranged, and the second conductors (2) and the third conductors (3) are symmetrically arranged in a split mode through insulating connecting ribs (6).