CN211555518U

CN211555518U - Multi-core flame-retardant low-voltage crosslinked polyethylene cable

Info

Publication number: CN211555518U
Application number: CN202020521448.9U
Authority: CN
Inventors: 许德俊
Original assignee: Jing Feng Group Co ltd
Current assignee: Jing Feng Group Co ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-09-22
Anticipated expiration: 2030-04-10

Abstract

The utility model discloses a multi-core flame-retardant low-voltage cross-linked polyethylene cable, which belongs to the field of multi-core polyethylene cables, and comprises a conductor, a conductor outer wall is connected with a conductor shielding layer, the conductor shielding layer is fixedly connected with an insulating layer, the insulating layer is fixedly connected with an insulating shielding layer, the insulating shielding layer is fixedly connected with a copper strip shielding layer, the copper strip shielding layer is fixedly connected with a filling layer, and the filling layer is fixedly connected with an inner protective layer, when in use, the multi-core flame-retardant low-voltage cross-linked polyethylene cable is provided with the insulating layer to carry out insulating treatment on the inside of the cable, the flame-retardant layer is provided to carry out flame-retardant treatment on the short circuit or gas emergency of the cable, the cable can not cause greater danger, thereby reducing the fire hazard of the cable, the steel wire layer is provided to fix the protective layer of the cable, the stability of the, the service life of the cable is prolonged, and the cable is simple in structure and suitable for mass production.

Description

Multi-core flame-retardant low-voltage crosslinked polyethylene cable

Technical Field

The utility model relates to a multicore polyethylene cable field specifically is a fire-retardant low pressure crosslinked polyethylene cable of multicore.

Background

The use of power cables has been in the past for over a hundred years. In 1879, inventor's in the united states t.a. edison wrapped jute around a copper rod and passed it into an iron pipe, and then filled with an asphalt mixture to make a cable, the power cable is a cable for transmitting and distributing electric energy, the power cable is commonly used in urban underground power grids, power station outgoing lines, power supplies inside industrial and mining enterprises, and transmission lines under sea water crossing the river, the high-voltage cable is one of power cables, and is used for transmitting power cables between 1kv and 1000kv, and is mostly applied to power transmission and distribution.

The cable is more and more common in our life, and the use of electricity is also more and more common, and the flame retardant efficiency of some cables is good inadequately, makes the life of cable shorten greatly, can cause the damage of cable, does not comprehensively inadequately to the insulation of multicore cable, can cause the effect of cable good inadequately, can cause the injury to the human body, for this reason, we have provided a fire-retardant low pressure crosslinked polyethylene cable of multicore.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-retardant low pressure crosslinked polyethylene cable of multicore for the use of proposing our current electricity in solving the background art is also more and more common, and the flame retardant efficiency of some cables is not good enough, makes the life of cable shorten greatly, can cause the damage of cable, does not comprehensively inadequately to the insulation of multicore cable, can cause the effect of cable not good enough, can cause the problem of injury to the human body.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-retardant low pressure crosslinked polyethylene cable of multicore, includes the conductor, conductor outer wall connection conductor shield, conductor shield fixed connection insulating layer, insulating layer fixed connection insulating shield, insulating shield fixed connection copper strips shielding layer, copper strips shielding layer fixed connection filling layer, filling layer fixed connection inner protective layer, inner protective layer fixed connection steel wire layer, steel wire layer fixed connection outer protective layer.

Preferably, the outer protective layer is provided with a high temperature resistant layer, a waterproof layer and an anti-corrosion layer, and the high temperature resistant layer, the waterproof layer and the anti-corrosion layer are respectively made of silicon rubber, polyolefin and chloroprene rubber.

Preferably, the insulating layer is a cross-linked polyethylene material.

Preferably, the conductors are uniformly distributed in the inner protective layer, and the filling layer is uniformly filled.

Preferably, the filling layer is a flame retardant layer, and the material of the filling layer is an inorganic paper rope.

Preferably, the conductors, the conductor shielding layers, the insulating shielding layers and the copper strip shielding layers are all multiple groups.

Compared with the prior art, the beneficial effects of the utility model are that: this kind of fire-retardant low pressure crosslinked polyethylene cable of multicore, when using, be equipped with the insulating layer and carry out insulation treatment to cable inside, it carries out fire-retardant treatment to cable short circuit or gaseous emergency to be equipped with fire-retardant layer, can not make the cable cause bigger danger, thereby reduce the harm that the cable catches fire, it fixes to be equipped with the steel wire layer to the protective layer of cable, make its stability increase, outer protective layer is equipped with high temperature resistant layer, waterproof layer and corrosion-resistant layer carry out certain protection to the outside of cable, lengthen its life, and cable structure is simple, and is suitable for mass production.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

FIG. 1 is a schematic sectional view of the entire side of the present invention;

fig. 2 is a schematic view of the present invention in partial side cross-section.

In the figure: 1 conductor, 2 conductor shielding layers, 3 insulating layers, 4 insulating shielding layers, 5 copper strip shielding layers, 6 filling layers, 7 inner protective layers, 8 steel wire layers and 9 outer protective layers.

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.

The utility model provides a fire-retardant low pressure crosslinked polyethylene cable of multicore for can be used for the fire-retardant low pressure crosslinked polyethylene cable of multicore please refer to and show that figure 1, this kind of fire-retardant low pressure crosslinked polyethylene cable of multicore includes: a conductor 1.

Referring to fig. 1 and 2, an outer wall of a conductor 1 is connected with a conductor shielding layer 2, the conductor shielding layer 2 shields the conductor, the conductor shielding layer 2 is fixedly connected with an insulating layer 3, the insulating layer 3 insulates the conductor, the insulating layer 3 is fixedly connected with an insulating shielding layer 4, the insulating shielding layer 4 shields the insulating layer 3, the insulating shielding layer 4 is fixedly connected with a copper strip shielding layer 5, the copper strip shielding layer 5 shields the conductor 1 again, the copper strip shielding layer 5 is fixedly connected with a filling layer 6, the filling layer 6 fixes the conductor 1, the filling layer 6 has a flame retardant effect, the filling layer 6 is fixedly connected with an inner protection layer 7, the inner protection layer 7 fixes and fastens the conductor 1 and the filling layer 6, the inner protection layer 7 is fixedly connected with a steel wire layer 8, and the steel wire layer 8 is fixedly connected with an outer protection layer 9.

Referring to fig. 1, the outer protective layer 9 is provided with a high temperature resistant layer, a waterproof layer and an anti-corrosion layer, wherein the high temperature resistant layer, the waterproof layer and the anti-corrosion layer are respectively made of silicon rubber, polyolefin and chloroprene rubber, and have certain blocking performance on the external environment, so as to well protect the internal cables.

Referring to fig. 1 and 2, the insulating layer 3 is made of cross-linked polyethylene, so as to achieve good insulation.

Referring to fig. 1 and 2, the conductors 1 are uniformly distributed in the inner protective layer 7, and the filling layer 6 is uniformly filled, so that the service life of the cable is prolonged by uniform filling.

Referring to fig. 1, the filling layer 6 is a flame retardant layer, and the material of the filling layer 6 is an inorganic paper rope, which has a flame retardant effect on the cable.

Referring to fig. 1 and 2, the conductor 1, the conductor shielding layer 2, the insulating layer 3, the insulating shielding layer 4 and the copper tape shielding layer 5 are all in multiple groups.

When the cable is used specifically, the conductor 1 is uniformly wrapped by the conductor insulating layer 2, the conductor 1 is protected and insulated, the conductor insulating layer 2 is uniformly wrapped by the insulating layer 3, the conductor 1 is insulated again, so that the cable cannot leak electricity, the insulating shielding layer 3 is uniformly wrapped by the insulating shielding layer 4, the insulating shielding layer 3 is shielded by the insulating shielding layer 4, the insulating shielding layer 4 is uniformly wrapped by the copper strip shielding layer 5, the cable is insulated again by the copper strip shielding layer 5, so that the cable cannot leak electricity, the copper strip shielding layer 5 is uniformly wrapped by the filling layer 6, the conductor 1 is fixed by the filling layer 6, so that the conductor 1 cannot move when in use, the service life of the cable is prolonged, the filling layer 6 is uniformly wrapped by the inner protective layer 7, the conductor 1 and the filling layer are fixed to a certain degree, the inner protective layer 7 is uniformly wrapped by the steel wire layer 8, and the steel wire layer 8, the cable protection layer is fixed to increase the stability of the cable, the steel wire layer 8 uniformly wraps the outer protection layer 9, the outer protection layer 9 is provided with a high temperature resistant layer, a waterproof layer and an anti-corrosion layer, the blocking performance to the external environment is certain, the internal cable is well protected, and the safety and the durability of the cable are increased.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A fire-retardant low pressure crosslinked polyethylene cable of multicore, includes conductor (1), its characterized in that: conductor (1) outer wall connection conductor shielding layer (2), conductor shielding layer (2) fixed connection insulating layer (3), insulating layer (3) fixed connection insulation shielding layer (4), insulation shielding layer (4) fixed connection copper tape shielding layer (5), copper tape shielding layer (5) fixed connection filling layer (6), filling layer (6) fixed connection inner protective layer (7), inner protective layer (7) fixed connection steel wire layer (8), steel wire layer (8) fixed connection outer protective layer (9).

2. The multi-core flame-retardant low-voltage crosslinked polyethylene cable according to claim 1, wherein: the outer protection layer (9) is provided with a high temperature resistant layer, a waterproof layer and an anti-corrosion layer, wherein the high temperature resistant layer, the waterproof layer and the anti-corrosion layer are respectively made of silicon rubber, polyolefin and chloroprene rubber.

3. The multi-core flame-retardant low-voltage crosslinked polyethylene cable according to claim 1, wherein: the insulating layer (3) is made of cross-linked polyethylene material.

4. The multi-core flame-retardant low-voltage crosslinked polyethylene cable according to claim 1, wherein: the conductors (1) are uniformly distributed in the inner protection layer (7), and the filling layer (6) is uniformly filled.

5. The multi-core flame-retardant low-voltage crosslinked polyethylene cable according to claim 1, wherein: the filling layer (6) is a flame-retardant layer, and the material of the filling layer (6) is an inorganic paper rope.

6. The multi-core flame-retardant low-voltage crosslinked polyethylene cable according to claim 1, wherein: the conductor (1), the conductor shielding layer (2), the insulating layer (3), the insulating shielding layer (4) and the copper strip shielding layer (5) are all in multiple groups.