CN217008679U

CN217008679U - High strength antidetonation power cable

Info

Publication number: CN217008679U
Application number: CN202122949911.7U
Authority: CN
Inventors: 苏浩晴; 苏璇; 张金利
Original assignee: Nanjing Sulan Cable Manufacturing Co ltd
Current assignee: Nanjing Sulan Cable Manufacturing Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-07-19
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a high-strength anti-seismic power cable, which comprises a plurality of cables and an anti-seismic sheath, wherein the cables are all arranged inside the anti-seismic sheath, the cables comprise cable cores and insulating layers, the insulating layers are fixedly connected with the outer sides of the cable cores, the anti-seismic sheath comprises filling layers, the cables are all arranged inside the filling layers, the outer sides of the filling layers are fixedly connected with bearing layers, the outer sides of the bearing layers are provided with flame retardant layers, a plurality of pairs of sealing rubber strips are fixedly connected between the flame retardant layers and the bearing layers, buffer air cavities are formed between the sealing rubber strips, the outer sides of the flame retardant layers are fixedly connected with wear-resistant layers, and the outer sides of the wear-resistant layers are fixedly connected with sheath layers. The service life of the cable is prolonged.

Description

High-strength anti-seismic power cable

Technical Field

The utility model relates to the field of power cable related products, in particular to a high-strength anti-seismic power cable.

Background

With the progress of society and the continuous development of living standard of people, the applicable occasions of the cable are more and more complicated and diversified. The power cable is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and transmission lines under river-crossing seawater. In the power line, the proportion of the power cable is gradually increased, and in recent years, the power line is seriously damaged by large and small earthquake and fire accidents. In-process such as industrial production, installation, civil engineering construction, city pipe network construction, power equipment's high strength vibrations also can cause unrecoverable damage to near the cable of construction, and when the cable received external force and assaulted, the stranded sinle silk extrudes each other, causes the sinle silk to damage easily, and the life of giving people brings very big potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-strength anti-seismic power cable which can effectively improve the anti-seismic effect of the power cable through the combined arrangement of a multilayer structure, effectively buffer and dissipate energy of external impact, and prolong the service life of the cable so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high strength antidetonation power cable, includes a plurality of cable conductors and antidetonation sheath, and is a plurality of inside the antidetonation sheath is all located to the cable conductor, a plurality of cable conductors include cable core and insulating layer, the outside of insulating layer fixedly connected with cable core, the antidetonation sheath includes the filling layer, and is a plurality of inside the filling layer is all located to the cable conductor, the outside fixedly connected with bearer layer of filling layer, the outside of bearer layer is equipped with fire-retardant layer, fixedly connected with is many right to the sealing rubber strip between fire-retardant layer and the bearer layer form the buffering air cavity between the sealing rubber strip, the outside fixedly connected with wearing layer on fire-retardant layer, the outside fixedly connected with restrictive coating of wearing layer.

Preferably, a plurality of the cables are arranged in a triangular shape.

Preferably, the insulating layer is a foamed fluoroplastic insulating layer

Preferably, the filling layer is a natural rubber elastomer.

Preferably, the bearing layer is a corrugated pipe.

Preferably, the wear-resistant layer is made of PE material.

Preferably, the sheath layer is made of a low-smoke halogen-free anti-corrosion material.

Preferably, the flame-retardant layer is high-density foam cotton.

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

this high strength antidetonation power cable, set up the insulating layer through the outside at the cable core, adopt the foaming fluoroplastics insulating layer to improve the insulating properties of cable, the filling layer can effectively play the cladding protective effect to the cable conductor for natural rubber elastomer, it can form the buffering shock attenuation effect when the atress to fix a plurality of sealing rubber strips between bearer layer and fire-retardant layer, fire-retardant layer adopts the cotton of high density foaming to avoid the high temperature invasion, the wearing layer adopts the PE material to make to realize the anticorrosive wear-resisting function of cable, outermost restrictive coating is low smoke and zero halogen anticorrosion material, external corrosion resistance is provided, the utility model can effectively improve power cable's antidetonation effect through multilayer structure's combination setting, the effectual energy dissipation that cushions to external impact, improve cable life.

Drawings

FIG. 1 is a schematic structural view of a high strength seismic power cable of the present invention;

fig. 2 is a schematic view of an internal structure of an anti-seismic sheath of a high-strength anti-seismic power cable according to the present invention.

In the figure: 1. a cable wire; 2. an anti-seismic sheath; 3. a cable core; 4. an insulating layer; 5. a filling layer; 6. a carrier layer; 7. a flame retardant layer; 8. sealing the rubber strip; 9. a buffer air cavity; 10. a wear layer; 11. a sheath layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, an embodiment of the present invention is shown: the utility model provides a high strength antidetonation power cable, includes a plurality of cable conductor 1 and antidetonation sheath 2, and is a plurality of inside antidetonation sheath 2 is all located to cable conductor 1, a plurality of cable conductor 1 include cable core 3 and insulating layer 4, the outside of 4 fixedly connected with cable cores of insulating layer 3, antidetonation sheath 2 includes filling layer 5, and is a plurality of filling layer 5 is all located to cable conductor 1 inside, filling layer 5's outside fixedly connected with bearer layer 6, the outside of bearer layer 6 is equipped with fire-retardant layer 7, fixedly connected with is many to sealing rubber strip 8 between fire-retardant layer 7 and the bearer layer 6, and is many right form buffering air cavity 9 between the sealing rubber strip 8, fire-retardant layer 7's outside fixedly connected with wearing layer 10, the outside fixedly connected with restrictive coating 11 of wearing layer 10.

In this embodiment, the plurality of cables 1 are arranged in a triangular shape; the insulating layer 4 is a foamed fluoroplastic insulating layer; the filling layer 5 is a natural rubber elastomer; the bearing layer 6 is a corrugated pipe; the wear-resistant layer 10 is made of PE material; the sheath layer 11 is made of a low-smoke halogen-free anti-corrosion material; the flame-retardant layer 7 is high-density foam cotton.

The working principle is as follows: at first set up insulating layer 4 in the outside of cable core 3, adopt foamed fluoroplastics insulating layer to improve the insulating properties of cable, filling layer 5 can effectively play the cladding protecting effect to the cable conductor for the natural rubber elastomer, fixed a plurality of sealing rubber strip 8 can form the buffering air cavity 9 between bearer layer 6 and fire-retardant layer 7 and realize the buffering shock attenuation effect when atress, fire-retardant layer 7 adopts the high density foaming cotton to avoid the high temperature to invade, wearing layer 10 adopts the PE material to make the anticorrosive wear-resisting function who has realized the cable, outermost restrictive coating 11 is low smoke and zero halogen anticorrosion material, external corrosion protection performance is provided.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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. The utility model provides a high strength antidetonation power cable, includes a plurality of cable conductor (1) and antidetonation sheath (2), its characterized in that: it is a plurality of inside antidetonation sheath (2) all was located to cable conductor (1), and a plurality of cable conductor (1) include cable core (3) and insulating layer (4), the outside of insulating layer (4) fixedly connected with cable core (3), antidetonation sheath (2) are including filling layer (5), and are a plurality of filling layer (5) are all located inside to cable conductor (1), outside fixedly connected with bearer layer (6) of filling layer (5), the outside of bearer layer (6) is equipped with fire-retardant layer (7), fixedly connected with is many right sealing rubber strip (8) between fire-retardant layer (7) and bearer layer (6) form buffering air cavity (9) between sealing rubber strip (8), outside fixedly connected with wearing layer (10) on fire-retardant layer (7), outside fixedly connected with restrictive coating (11) of wearing layer (10).

2. A high strength seismic power cable according to claim 1, wherein: the plurality of cables (1) are arranged in a triangular mode.

3. A high strength seismic power cable according to claim 1, wherein: the insulating layer (4) is a foamed fluoroplastic insulating layer.

4. A high strength seismic power cable according to claim 1, wherein: the filling layer (5) is a natural rubber elastomer.

5. A high strength seismic power cable according to claim 1, wherein: the bearing layer (6) is a corrugated pipe.

6. A high strength seismic power cable according to claim 1, wherein: the wear-resistant layer (10) is made of PE materials.

7. A high strength seismic power cable according to claim 1, wherein: the sheath layer (11) is made of low-smoke halogen-free anticorrosive material.

8. A high strength anti-seismic power cable according to claim 1, wherein: the flame-retardant layer (7) is high-density foam cotton.