CN210271897U

CN210271897U - Crosslinked polyethylene insulated power cable

Info

Publication number: CN210271897U
Application number: CN201921459098.1U
Authority: CN
Inventors: 毛鹤
Original assignee: Jintai Cable Co ltd
Current assignee: Jintai Cable Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-04-07
Anticipated expiration: 2029-09-04

Abstract

The utility model provides a crosslinked polyethylene insulated power cable, which comprises a first crosslinked polyethylene sleeve, a first fireproof cotton, a spiral copper core, filling glue, a Kevlar core, a second crosslinked polyethylene sleeve, a second fireproof cotton, a ribbon and a round copper core, wherein the first crosslinked polyethylene sleeve is assembled inside a cable main body, the first fireproof cotton is assembled inside the annular side surface of the first crosslinked polyethylene sleeve, the spiral copper core is assembled inside the first fireproof cotton, the filling glue is filled inside the spiral copper core, the Kevlar core is assembled inside the spiral copper core, the second crosslinked polyethylene sleeve is assembled inside the cable main body, the second fireproof cotton is assembled inside the second crosslinked polyethylene sleeve, the round copper core is assembled inside the second fireproof cotton, the ribbon is assembled on the annular side surface of the round copper core, the design solves the problem of poor flexibility of the original crosslinked polyethylene insulated cable, the utility model has reasonable structure, the flexibility of the crosslinked polyethylene insulated cable is conveniently and effectively improved.

Description

Crosslinked polyethylene insulated power cable

Technical Field

The utility model relates to an insulating power cable of crosslinked polyethylene belongs to the insulating power cable technical field of crosslinked polyethylene.

Background

The cross-linked polyethylene insulated cable is a cable suitable for the field of power distribution networks and the like, and has the advantages that a PVC insulated cable cannot achieve. It has simple structure, light weight, high heat resistance, high load capacity, no smelting, high chemical corrosion resistance and high mechanical strength.

The former cross-linked polyethylene cable is not good in distribution of internal conductive components, too large in hardness when used, poor in flexibility and troublesome in lead installation of the cable due to the lack of good flexibility, the existing cross-linked polyethylene insulated cable is poor in flexibility, and a cross-linked polyethylene insulated power cable is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing an insulating power cable of crosslinked polyethylene to solve the problem that proposes in the above-mentioned background art, the utility model discloses rational in infrastructure is convenient for effectively improve the pliability of crosslinked polyethylene insulated cable.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a crosslinked polyethylene insulated power cable comprises a cable main body, a polyvinyl chloride protective sleeve, armoring, a flexible multi-core mechanism and a low-density polyvinyl chloride layer, wherein the polyvinyl chloride protective sleeve is assembled on the annular side surface of the cable main body, the armoring is assembled on the inner side of the polyvinyl chloride protective sleeve, the low-density polyvinyl chloride layer is filled on the inner side of the armoring, the flexible multi-core mechanism comprises a first crosslinked polyethylene sleeve, first fireproof cotton, a spiral copper core, filling glue, a Kevlar core, a second crosslinked polyethylene sleeve, second fireproof cotton, a cable tie and a circular copper core, the first crosslinked polyethylene sleeve is assembled in the cable main body, the first fireproof cotton is assembled on the inner side surface of the first crosslinked polyethylene sleeve, the spiral copper core is assembled on the inner side of the first fireproof cotton, the filling glue is filled in the spiral copper core, the Kevlar core is assembled on the inner side of the spiral copper core, the cable body is inside to be equipped with the second crosslinked polyethylene cover, the second crosslinked polyethylene cover inboard is equipped with the second fireproof cotton, the cotton inboard of second fireproof is equipped with circular copper core, circular copper core annular side is equipped with the ribbon.

Furthermore, the low-density polyvinyl chloride layer is internally filled with low-density polyvinyl chloride and fireproof fibers.

Further, the spiral copper core is spirally wound, and the filling adhesive is made of fireproof adhesive.

Furthermore, Kevlar fibers and flame-retardant nylon yarns are filled in the Kevlar core.

Further, the first and second crosslinked polyethylene sleeves are each fitted inside with an aluminum tape shield.

Furthermore, the spiral copper cores are provided with two groups, the specifications of the two groups of spiral copper cores are the same, the specifications of the two groups of circular copper cores are the same, and the specifications of the two groups of circular copper cores are the same.

The utility model has the advantages that: the utility model discloses an insulating power cable of crosslinked polyethylene, because of the utility model discloses added first crosslinked polyethylene cover, first fire prevention cotton, spiral copper core, filling glue, kaifu stay cord core, second crosslinked polyethylene cover, second fire prevention cotton, ribbon and circular copper core, this design can effectively improve the pliability of crosslinked polyethylene insulated cable, has solved the not good problem of original crosslinked polyethylene insulated cable pliability, has improved the utility model discloses a cable pliability.

Because of the inside packing of low density polyvinyl chloride layer has low density polyvinyl chloride and fire prevention fibre, this design utilizes the good fire prevention high temperature resistance of low density polyvinyl chloride and fire prevention fibre's tensile resistance, improve the bulk strength of cable main part, because of the spiral copper core is the spiral winding, the filling glue material is fire prevention glue, this design increases the pliability of cable main part through spiral copper core, because of the inside packing of the kava stay cord in-core has kava fiber and fire-retardant nylon filament, this design utilizes good pliability and the fire-retardant pliability of fire-retardant nylon filament effectively to improve the flexibility of cable main part, all be equipped with the aluminium strip shielding because of first crosslinked polyethylene cover and second crosslinked polyethylene cover inboard, this design effectively shields external electromagnetic interference, the utility model discloses rational in infrastructure, be convenient for effectively improve the pliability of crosslinked polyethylene insulated cable.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a cross-linked polyethylene insulated power cable according to the present invention;

fig. 2 is a schematic structural diagram of a flexible multi-core mechanism in a cross-linked polyethylene insulated power cable according to the present invention;

FIG. 3 is a cross-sectional view of the spiral copper core of the cross-linked polyethylene insulated power cable of the present invention;

FIG. 4 is a cross-sectional view of a circular copper core in a cross-linked polyethylene insulated power cable according to the present invention;

in the figure: the cable comprises a cable body 1, a polyvinyl chloride protective sleeve 2, an armor 3, a flexible multi-core mechanism 4, a low-density polyvinyl chloride layer 5, a first crosslinked polyethylene sleeve 41, a first fireproof cotton 42, a spiral copper core 43, a filling adhesive 44, a Kevlar core 45, a second crosslinked polyethylene sleeve 46, a second fireproof cotton 47, a binding tape 48 and a round copper core 49.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an insulating power cable of crosslinked polyethylene, includes cable main part 1, polyvinyl chloride protective sheath 2, armor 3, flexible multicore mechanism 4 and low density

polyvinyl chloride layer

5, and 1 annular side of cable main part is equipped with polyvinyl chloride

protective sheath

2, and 2 inboards of polyvinyl chloride protective sheath are equipped with

armor

3, and 3 inboard packings of armor have low density polyvinyl chloride layer 5.

The flexible multi-core mechanism 4 comprises a first cross-linked polyethylene sleeve 41, a first fireproof cotton 42, a spiral copper core 43, filling glue 44, a Kevlar core 45, a second cross-linked polyethylene sleeve 46, a second fireproof cotton 47, a ribbon 48 and a round copper core 49, cable main part 1 internal assembly has first crosslinked polyethylene cover 41, first crosslinked polyethylene cover 41 annular side inboard is equipped with first fire prevention cotton 42, first fire prevention cotton 42 inboard is equipped with spiral copper core 43, the inside packing of spiral copper core 43 has the filled gum 44, spiral copper core 43 inboard is equipped with kava rope core 45, cable main part 1 internal assembly has second crosslinked polyethylene cover 46, second crosslinked polyethylene cover 46 inboard is equipped with second fire prevention cotton 47, second fire prevention cotton 47 inboard is equipped with circular copper core 49, circular copper core 49 annular side is equipped with ribbon 48, the not good problem of original crosslinked polyethylene insulated cable pliability has been solved in this design.

The inside packing of low density polyvinyl chloride layer 5 has low density polyvinyl chloride and fire prevention fibre, and this design utilizes the good fire prevention high temperature resistance of low density polyvinyl chloride and fire prevention fibre's tensile resistance, improves cable main body 1's bulk strength, and spiral copper core 43 is the spiral winding, and the filling adhesive 44 material is fire-proof glue, and this design passes through spiral copper core 43 and increases cable main body 1's pliability.

The inside packing of Kevlar core 45 has Kevlar fibre and fire-retardant nylon filament, this design utilizes good pliability of Kevlar fibre and fire-retardant nylon filament and the pliability of fire-retardant fire resistance effectively to improve cable main part 1, first crosslinked polyethylene cover 41 and second crosslinked polyethylene cover 46 inboard all are equipped with the aluminium strip shielding, this design effectively shields external electromagnetic interference, spiral copper core 43 is equipped with two sets ofly, and two sets of spiral copper core 43 specifications are the same, circular copper core 49 is equipped with two sets ofly, and two sets of circular copper core 49 specifications are the same, this design makes things convenient for the carrying capacity of reinforcing cable main part 1.

As an embodiment of the present invention: it can be seen through analysis and research that the polyvinyl chloride protective sleeve 2 and the low-density polyvinyl chloride layer 5 are assembled inside the cable main body 1, the fireproof and high-temperature resistance of the cable main body 1 is effectively improved, the implantation of the armor 3 effectively improves the compression resistance of the cable main body 1 and prevents the compression deformation caused by external force, the Kevlar core 45 is assembled inside the spiral copper core 43, the flexibility of the cable main body 1 is increased through the spiral copper core 43, the flexibility of the cable main body 1 is effectively improved by utilizing the good flexibility and the flame-retardant and fireproof performance of the Kevlar core 45, the first fireproof cotton 42 is assembled outside the spiral copper core 43 to play a role in fireproof and heat-insulating, the first crosslinked polyethylene sleeve 41 outside the first fireproof cotton 42 effectively insulates heat and prevents fire, the circular copper core 49 improves the flexibility and can simultaneously increase the power transmission capacity, meanwhile, the annular side surface of the circular copper core 49 is wrapped by the ribbon 48 to prevent the circular copper core, the circular copper core 49 outside is equipped with second fire prevention cotton 47 and second crosslinked polyethylene cover 46, and effective fire prevention is thermal-insulated, has strengthened the pliability of cable main body 1 when having improved the thermal-insulated ability of fire prevention of cable main body 1 above.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an insulating power cable of crosslinked polyethylene, includes cable body, polyvinyl chloride protective sheath, armor, flexible multicore mechanism and low density polyvinyl chloride layer, its characterized in that: the cable is characterized in that a polyvinyl chloride protective sleeve is assembled on the annular side surface of the cable main body, an armor is assembled on the inner side of the polyvinyl chloride protective sleeve, and a low-density polyvinyl chloride layer is filled on the inner side of the armor;

the flexible multi-core mechanism comprises a first cross-linked polyethylene sleeve, first fireproof cotton, a spiral copper core, filling glue, a Kevlar core, a second cross-linked polyethylene sleeve, second fireproof cotton, a cable tie and a round copper core, wherein the first cross-linked polyethylene sleeve is assembled inside a cable main body, the first fireproof cotton is assembled on the inner side of the annular side face of the first cross-linked polyethylene sleeve, the spiral copper core is assembled on the inner side of the first fireproof cotton, the filling glue is filled inside the spiral copper core, the Kevlar core is assembled on the inner side of the spiral copper core, the second cross-linked polyethylene sleeve is assembled inside the cable main body, the second fireproof cotton is assembled on the inner side of the second cross-linked polyethylene sleeve, the round copper core is assembled on the inner side face of the second fireproof cotton, and the cable tie is assembled on the annular side face of the round.

2. A crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the low-density polyvinyl chloride layer is filled with low-density polyvinyl chloride and fireproof fibers.

3. A crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the spiral copper core is spirally wound, and the filling adhesive is made of fireproof adhesive.

4. A crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the Kevlar fiber and the flame-retardant nylon yarn are filled in the Kevlar core.

5. A crosslinked polyethylene insulated power cable according to claim 1, characterized in that: and the inner sides of the first crosslinked polyethylene sleeve and the second crosslinked polyethylene sleeve are respectively provided with an aluminum strip shield.

6. A crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the spiral copper cores are two groups, the specifications of the two groups of spiral copper cores are the same, the specifications of the two groups of circular copper cores are two groups, and the specifications of the two groups of circular copper cores are the same.