CN214588160U

CN214588160U - Cable with flame retardant function

Info

Publication number: CN214588160U
Application number: CN202120974396.5U
Authority: CN
Inventors: 张壮; 李敏; 井源
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-11-02
Anticipated expiration: 2031-05-08

Abstract

The utility model discloses a cable with fire-retardant function, including conductor, glass fiber packing rope and erection column, the fixed surface of erection column installs spacing post, and the quantity of spacing post is a plurality of, and per four spacing posts are a set of, and the spacing post of every group all is the surface of circumference array setting at the erection column, and the conductor is located the inside of glass fiber packing rope, and the surface of conductor has set gradually first fire-resistant mica area, first semi-conductive shielding band and insulating cover from inside to outside. This cable with fire-retardant function through setting up first fire-resistant mica tape, the fire-resistant mica tape of second and fire-retardant cover to with the continuous material as fire-retardant cover of melamine bubble, make this cable at the in-process of in-service use, can effectually carry out the separation to external high temperature on the one hand, avoided heat transfer to the inside of conductor, on the other hand when the conflagration breaing out, can effectually prevent this cable burnout, thereby realize the purpose to the effective fire protection of this cable.

Description

Cable with flame retardant function

Technical Field

The utility model relates to the technical field of cables, specifically be a cable with fire-retardant function.

Background

Electric power engineering, i.e. engineering related to the production, transmission, distribution of electric energy, also broadly includes engineering of electricity as a power and energy source for applications in various fields.

What play the bridge effect in electric power engineering is power cable, current cable lacks good fire behaviour in the aspect of the performance, when the cable is suffering high temperature, cause the destruction to the inner structure of cable easily, thereby influence the normal use of cable, and the inside conductor of cable hugs closely mostly and installs together, lead to when suffering external pressure to knead, extrusion friction takes place easily for the insulating layer on two conductor surfaces, can cause the destruction to the insulating layer on conductor surface when extrusion friction repeatedly.

Therefore, we propose a cable having a flame retardant function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cable with fire-retardant function to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cable with fire-retardant function, includes conductor, glass fiber packing rope and erection column, the fixed surface of erection column installs spacing post, the quantity of spacing post is a plurality of, every four spacing posts are a set of, every spacing post of group all is the surface of circumference array setting at the erection column, the conductor is located the inside of glass fiber packing rope, the quantity of conductor is four, the surface of conductor has set gradually first fire-resistant mica area from inside to outside, first semi-conductive shielding band and insulating cover, the surface of glass fiber packing rope has set gradually second fire-resistant mica area from inside to outside, second semi-conductive shielding band, wrinkle aluminium sheath, fire-retardant cover and lag.

Preferably, the one end fixed mounting that the erection column was kept away from to spacing post has the arc limiting plate, and the arc limiting plate is located the inside of glass fiber packing rope, and the outer cambered surface of arc limiting plate and the inner wall fixed connection of second fire resistant mica tape.

Preferably, the insulating sleeve is made of polytetrafluoroethylene, and the protective sleeve is made of silicon rubber.

Preferably, the material of the flame-retardant sleeve is melamine foam.

Preferably, the mounting column, the limiting column and the arc-shaped limiting plate are made of polyethylene.

Preferably, the outer part of the mounting column is divided into four regions by the limiting column, the glass fiber filling ropes are arranged in the four regions, and the four conductors are symmetrically arranged in the four regions.

Advantageous effects

The utility model provides a cable with fire-retardant function possesses following beneficial effect:

1. this cable with fire-retardant function through setting up first fire-resistant mica tape, the fire-resistant mica tape of second and fire-retardant cover to with the continuous material as fire-retardant cover of melamine bubble, make this cable at the in-process of in-service use, can effectually carry out the separation to external high temperature on the one hand, avoided heat transfer to the inside of conductor, on the other hand when the conflagration breaing out, can effectually prevent this cable burnout, thereby realize the purpose to the effective fire protection of this cable.

2. This cable with fire-retardant function through setting up erection column, spacing post and arc limiting plate, makes this cable when production, can set up the conductor respectively in four regions separated into by spacing post to make and have certain clearance between two conductors under the effect of spacing post, arc limiting plate and glass fiber packing rope, thereby can effectually prevent that external pressure from leading to two conductors to take place the condition of wearing and tearing.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic view of the three-dimensional structure of the mounting post of the present invention.

In the figure: the cable comprises a conductor 1, a glass fiber filling rope 2, a mounting column 3, a limiting column 4, a first fire-resistant mica tape 5, a first semi-conductive shielding tape 6, an insulating sleeve 7, a second fire-resistant mica tape 8, a second semi-conductive shielding tape 9, a corrugated aluminum sheath 10, a flame-retardant sleeve 11, a protective sleeve 12 and an arc limiting plate 13.

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. 1-3, the present invention provides a technical solution: the utility model provides a cable with fire-retardant function, including conductor 1, glass fiber filler rope 2 and erection column 3, the fixed surface of erection column 3 installs spacing post 4, the quantity of spacing post 4 is a plurality of, per four spacing posts 4 are a set of, every spacing post 4 of group all is the surface that the circumference array set up at erection column 3, spacing post 4 becomes four regions with the external separation of erection column 3, glass fiber filler rope 2 sets up in four regional inside, and the 1 symmetry of four conductors sets up in four regional inside.

The conductors 1 are located inside the glass fiber filling rope 2, the number of the conductors 1 is four, the outer surface of each conductor 1 is sequentially provided with a first fire-resistant mica tape 5, a first semi-conductive shielding tape 6 and an insulating sleeve 7 from inside to outside, and the insulating sleeve 7 is made of polytetrafluoroethylene.

The outer surface of the glass fiber filling rope 2 is sequentially provided with a second fire-resistant mica tape 8, a second semi-conductive shielding tape 9, a corrugated aluminum sheath 10, a flame-retardant sleeve 11 and a protective sleeve 12 from inside to outside.

The material of the protective sleeve 12 is silicon rubber, and the material of the flame-retardant sleeve 11 is melamine foam.

Through setting up first fire-resistant mica tape 5, second fire-resistant mica tape 8 and fire-retardant cover 11 to with the continuous material as fire-retardant cover 11 of melamine bubble, make this cable in the in-process of in-service use, can effectually carry out the separation to external high temperature on the one hand, avoided heat transfer to conductor 1's inside, on the other hand when the conflagration breaing out, can effectually prevent this cable burnout, thereby realize the purpose to the effective fire protection of this cable.

The one end fixed mounting that the erection column 3 was kept away from to spacing post 4 has arc limiting plate 13, and arc limiting plate 13 is located the inside of glass fiber packing rope 2, and the outer cambered surface of arc limiting plate 13 and the inner wall fixed connection of second fire resistant mica tape 8.

The mounting column 3, the limiting column 4 and the arc-shaped limiting plate 13 are made of polyethylene.

Through setting up erection column 3, spacing post 4 and arc limiting plate 13, make this cable when production, can set up conductor 1 respectively in four regions separated into by spacing post 4 to make and have certain clearance between two conductors 1 under spacing post 4, arc limiting plate 13 and glass fiber filler rope 2's effect, thereby can effectually prevent that external pressure from leading to the condition that two conductors 1 take place wearing and tearing.

The working principle is as follows: this cable with fire-retardant function, through setting up first fire-resistant mica tape 5, second fire-resistant mica tape 8 and fire-retardant cover 11, and regard the melamine foam as fire-retardant cover 11's material, make this cable at the in-process of in-service use, on the one hand can effectually carry out the separation to external high temperature, the inside of heat transfer to conductor 1 has been avoided, on the other hand is when the conflagration breaing out, can effectually prevent this cable burnout, thereby realize the purpose to the effective fire protection of this cable, and this cable is when production, can set up conductor 1 respectively in four regions separated into by spacing post 4, and at spacing post 4, there is certain clearance between arc limiting plate 13 and the effect of glass fiber filling rope 2 make two conductors 1 under, thereby can effectually prevent that external pressure from leading to two conductors 1 to take place the condition of wearing and tearing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A cable with flame retardant function, includes conductor (1), glass fiber filler rope (2) and erection column (3), its characterized in that: the utility model discloses a cable conductor, including erection column (3), the surface fixed mounting of erection column (3) has spacing post (4), the quantity of spacing post (4) is a plurality of, per four spacing post (4) are a set of, every group spacing post (4) all are the surface of circumference array setting at erection column (3), conductor (1) are located the inside of glass fiber packing rope (2), the quantity of conductor (1) is four, the surface of conductor (1) has set gradually first fire resistant mica tape (5) by inside to outside, first semi-conductive shielding band (6) and insulating boot (7), the surface of glass fiber packing rope (2) has set gradually second fire resistant mica tape (8) by inside to outside, second semi-conductive shielding band (9), wrinkle aluminium sheath (10), fire-retardant cover (11) and lag (12).

2. The cable with flame retardant function according to claim 1, wherein: one end fixed mounting that erection column (3) was kept away from in spacing post (4) has arc limiting plate (13), and arc limiting plate (13) are located the inside of glass fiber packing rope (2), and the outer cambered surface of arc limiting plate (13) and the inner wall fixed connection of second fire resistant mica tape (8).

3. The cable with flame retardant function according to claim 1, wherein: the insulating sleeve (7) is made of polytetrafluoroethylene, and the protective sleeve (12) is made of silicon rubber.

4. The cable with flame retardant function according to claim 1, wherein: the flame-retardant sleeve (11) is made of melamine foam.

5. A cable having a flame retardant function according to claim 1 or 2, wherein: the mounting column (3), the limiting column (4) and the arc limiting plate (13) are made of polyethylene.

6. The cable with flame retardant function according to claim 1, wherein: the outer portion of the mounting column (3) is divided into four areas by the limiting column (4), the glass fiber filling ropes (2) are arranged in the four areas, and the four conductors (1) are symmetrically arranged in the four areas.