CN211699766U

CN211699766U - Special connecting flexible cable for ring main unit PT

Info

Publication number: CN211699766U
Application number: CN202020433075.XU
Authority: CN
Inventors: 经博文; 刘海涛; 鲁永超
Original assignee: Henan Kairui Electric Equipment Co ltd
Current assignee: Henan Kairui Electric Equipment Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-10-16
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses a special connecting flexible cable for a ring main unit PT, which comprises an outer layer unit, a filling unit and a wire core unit; the cable core unit comprises a main conductor cable core, wherein a plurality of cable cores are arranged on the outer surface of the main conductor cable core, and an insulating inner layer, a flame-retardant layer and a woven inner layer are sequentially arranged outside the plurality of cable cores; the outer layer unit comprises a metal woven outer layer, the metal woven outer layer is provided with a polyurethane elastic layer, and the outer layer of the polyurethane elastic layer is provided with a chlorosulfonated polyethylene layer; the filling unit comprises a vinylon filling layer, and a rubber strip is arranged in the vinylon filling layer; through the high temperature resistance ability of fire-retardant layer improvement cable, guarantee cable work safe and reliable, kept the compliance when weaving outer anti extrusion ability of increase through the metal, had good heat dissipation's characteristics simultaneously, the utility model discloses compliance and bending property are good, can reduce the requirement to the size, are convenient for carry out PT and main loop's connection, prevent to cause equipment damage when connecting.

Description

Special connecting flexible cable for ring main unit PT

Technical Field

The utility model relates to the technical field of cables, specifically be looped netowrk cabinet PT dedicated connection flexible cable.

Background

The totally enclosed all insulation PT of looped netowrk cabinet the inside is when being connected with the major loop, need realize through the cable of taking the cable head, traditional connecting cable is because the hardness is very high, it is very strict to looped netowrk cabinet sleeve pipe and the direct relative distance requirement of PT sleeve pipe at the in-process of preparation, otherwise will cause the equipment to damage, the space of looped netowrk cabinet the inside has now, adopt traditional when carrying out PT and major loop and connect, because the cable hardness is high, be difficult to bend, lead to connecting work more difficult, the flexible cable of looped netowrk cabinet PT dedicated connection has been proposed to this problem and this problem is solved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide looped netowrk cabinet PT dedicated connection flexible cable, compliance and bending property are good, can reduce the requirement to the size, are convenient for carry out the connection of PT and major loop, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the special connecting flexible cable for the ring main unit PT comprises an outer layer unit, a filling unit and a wire core unit;

a wire core unit: the cable core unit comprises a main conductor cable core, wherein a plurality of cable cores are arranged on the outer surface of the main conductor cable core, and an insulating inner layer, a flame-retardant layer and a woven inner layer are sequentially arranged outside the plurality of cable cores;

outer layer unit: the outer layer unit comprises a metal woven outer layer, the metal woven outer layer is provided with a polyurethane elastic layer, and the outer layer of the polyurethane elastic layer is provided with a chlorosulfonated polyethylene layer;

a filling unit: the filling unit comprises a vinylon filling layer, and a rubber strip is arranged in the vinylon filling layer;

wherein: and a rubber layer is arranged between the metal woven outer layer and the vinylon filling layer.

Furthermore, the number of the wire cores of the multiple wire cores is not less than five, the multiple wire cores are formed by twisting around the main wire core of the conductor, the wire diameter of the multiple wire cores is smaller than that of the main wire core of the conductor, and the hardness of the conductor core is reduced by the multiple wire cores, so that the conductor core is convenient to bend.

Furthermore, the number of the rubber strips is three, the rubber strips are uniformly distributed around the center of the vinylon filling layer, and the tensile strength of the flexible cable is improved through the rubber strips.

Furthermore, the woven inner layer is formed by weaving fiber materials, and the woven inner layer improves the flexibility of the cable.

Compared with the prior art, the beneficial effects of the utility model are that: this looped netowrk cabinet PT dedicated connection flexible cable has following benefit:

1. the utility model discloses on set up the stranded sinle silk, reduced the hardness of conductor core through the stranded sinle silk for be convenient for bend, improve the tensile strength of flexible cable through the rubber strip, weave the flexibility performance that the inlayer improved cable.

2. The utility model discloses on set up fire-retardant layer, improve the high temperature resistance ability of cable through fire-retardant layer, guarantee cable work safe and reliable, kept the compliance when weaving outer anti extrusion ability that increases through the metal, had good heat dissipation's characteristics simultaneously.

3. The utility model discloses on set up the rubber layer, improve the compressive capacity of cable through the rubber layer, the utility model discloses compliance and bending property are good, can reduce the requirement to the size, are convenient for carry out the connection of PT and major loop, prevent to cause equipment to damage when connecting.

Drawings

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

fig. 2 is the schematic diagram of the structure of the core of the present invention.

In the figure: 1

rubber layer

1, 2

outer layer units

2, 21 metal woven

outer layers

21, 22 polyurethane

elastic layers

22, 23

chlorosulfonated polyethylene layers

23, 3

filling units

3, 31

vinylon filling layers

31, 32

rubber strips

32, 4

wire core units

4, 41 conductor

main wire cores

41, 42

multi-strand wire cores

42, 43 insulating inner layers 43, 44 flame retardant layers 44 and 45 woven inner layers 45.

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.

Example one

Referring to fig. 1-2, the present invention provides a technical solution: the special connecting flexible cable for the ring main unit PT comprises an outer layer unit 2, a filling unit 3 and a wire core unit 4;

wire core unit 4: the wire core unit 4 comprises a conductor main wire core 41, the outer surface of the conductor main wire core 41 is provided with a plurality of wire cores 42, the number of the wire cores of the plurality of wire cores 42 is not less than five, the plurality of wire cores 42 are twisted around the conductor main wire core 41, the wire warp of the plurality of wire cores 42 is smaller than that of the conductor main wire core 41, the hardness of the conductor core is reduced by the plurality of wire cores 42, so that the conductor core is convenient to bend, an insulating inner layer 43, a flame-retardant layer 44 and a woven inner layer 45 are sequentially arranged outside the plurality of wire cores 42, the woven inner layer 45 is woven by fiber materials, and the;

outer layer unit 2: the outer layer unit 2 comprises a metal woven outer layer 21, a polyurethane elastic layer 22 is arranged on the outer layer of the metal woven outer layer 21, a chlorosulfonated polyethylene layer 23 is arranged on the outer layer of the polyurethane elastic layer 22, and the chlorosulfonated polyethylene layer 23 enables the cable to have extremely strong acid and alkali resistance and good chemical stability;

the filling unit 3: the filling unit 3 comprises a vinylon filling layer 31, rubber strips 32 are arranged in the vinylon filling layer 31, the number of the rubber strips 32 is three, the rubber strips 32 are uniformly distributed around the center of the vinylon filling layer 31, and the tensile strength of the flexible cable is improved through the rubber strips 32;

wherein: be equipped with rubber layer 1 between outer 21 and the vinylon filling layer 31 are woven to the metal, the compressive capacity through rubber layer 1 improvement cable, the high temperature resistance ability through fire-retardant layer 44 improvement cable, guarantee cable work safe and reliable, kept the compliance when weaving outer 21 increase anti extrusion ability through the metal, the while has good heat dissipation's characteristics, reduce the hardness of conductor core through stranded sinle silk 42, make to be convenient for carry out the bending, improve the tensile strength of flexible cable through rubber strip 32, weave inlayer 45 and improve the flexibility of cable, the utility model discloses compliance and bending property are good, can reduce the requirement to the size, are convenient for carry out the connection of PT and major loop, prevent to cause equipment damage when connecting.

When in use: reduce the hardness of conductor core through stranded sinle silk 42, make and be convenient for bend, be convenient for carry out PT and major loop's connection, prevent to cause equipment damage when connecting, improve the tensile strength of flexible cable through rubber strip 32, weave the compliance that inlayer 45 improved the cable, improve the high temperature resistance ability of cable through fire-retardant layer 44, guarantee cable work safe and reliable, the compliance has been kept when outer 21 increases anti extrusion capacity through the metal weaving, the while has good heat dissipation's characteristics, the compressive capacity of cable is improved through rubber layer 1.

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. Looped netowrk cabinet PT dedicated connection flexible cable, including outer unit, packing unit and sinle silk unit, its characterized in that:

2. The special connecting flexible cable for the PT of the ring main unit according to claim 1, characterized in that: the number of the wire cores of the multiple wire cores is not less than five, the multiple wire cores are formed by twisting around the main wire core of the conductor, and the wire diameter of the multiple wire cores is smaller than that of the main wire core of the conductor.

3. The special connecting flexible cable for the PT of the ring main unit according to claim 1, characterized in that: the number of the rubber strips is three, and the rubber strips are uniformly distributed around the center of the vinylon filling layer.

4. The special connecting flexible cable for the PT of the ring main unit according to claim 1, characterized in that: the woven inner layer is woven by fiber materials.