CN210692184U

CN210692184U - Three-phase copper pipe cable

Info

Publication number: CN210692184U
Application number: CN201921753651.2U
Authority: CN
Inventors: 徐季新; 黄建卫; 张天成; 王世军; 黄桂领
Original assignee: Zhejiang Zetastone Special Cable Co ltd
Current assignee: Zhejiang Zetastone Special Cable Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-06-05
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a three-phase copper pipe cable, including ABC three-phase power cord and three earth connection, the three-phase power cord is arranged and set up an earth connection between two liang for 120 degrees circumference each other around the cable central line, three earth connections are arranged for 120 degrees circumference each other around the cable central line, the outside of three-phase power cord and earth connection is provided with insulating fire prevention jointly and winds the band layer, steel wire armor and insulating anticorrosive coating, insulating fire prevention winds the band layer and is the outer and the double-deck bonding body structure in mica tape inlayer of crosslinked polyethylene resin, ABC three-phase power cord and three earth connection and insulating fire prevention fill the core with the resin around the space between the band layer, the three-phase power cord includes first inner conductor and wraps the outside semiconductive shield layer of first inner conductor in proper order, the insulating layer, insulating shield layer. The cable thoroughly avoids oil leakage, and has better tensile strength and better working reliability.

Description

Three-phase copper pipe cable

Technical Field

The utility model relates to a power cable technical field especially relates to a three-phase copper pipe cable.

Background

The copper pipe cable is a power cable which pulls three cable cores into a copper pipe on site and fills the copper pipe with high-pressure oil or gas, and is applied to overhead lines and some special occasions. However, the copper pipe is deteriorated during a long time use, which easily causes problems such as oil leakage and the like, and brings difficulty to maintenance. At present, copper pipe cables are being modified by replacing original wire cores with polymer insulation wire cores such as XLPE (cross linked polyethylene) so as to avoid the problem of oil leakage.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art not enough, the technical problem that solve provides a three-phase copper pipe cable, through structural optimization, has thoroughly avoided the oil leak problem to take place, has better tensile strength concurrently, and the operational reliability is better.

The utility model discloses a make above-mentioned technical problem solve through following technical scheme.

The three-phase copper pipe cable comprises an ABC three-phase power line and three grounding wires, wherein the ABC three-phase power line is circumferentially arranged at 120 degrees around a central line of the cable, one grounding wire is respectively arranged between every two ABC three-phase power lines, the three grounding wires are circumferentially arranged at 120 degrees around the central line of the cable, the outer sides of the ABC three-phase power line and the three grounding wires are jointly provided with an insulating fireproof wrapping tape layer, a steel wire armor and an insulating anticorrosive layer, the insulating fireproof wrapping tape layer is of a double-layer bonding integrated structure of a crosslinked polyethylene resin outer layer and a mica tape inner layer, spaces between the ABC three-phase power line and the three grounding wires and the insulating fireproof wrapping tape layer are filled with resin filling core materials, and the ABC three-phase power line comprises a first inner conductor, and a semi-conductive shielding layer, an insulating shielding, the first inner conductor and the grounding wire are both copper stranded wires.

Preferably, the insulating fireproof wrapping band layer is of a unidirectional spiral winding structure, and the spiral angle is 45-55 degrees.

Preferably, the insulating anticorrosive layer is a PVC or PE resin insulating anticorrosive layer.

Preferably, the semiconductive shielding layer is a nylon tape shielding layer.

Preferably, the insulating layer is an XLPE resin insulating layer.

Preferably, the resin-filled core material is a polypropylene resin core material.

Preferably, the insulation shielding layer is an EEA resin layer.

The utility model has the advantages that:

1. the manufacturing process difficulty is reduced, the maintenance cost is saved, the installation manufacturability is improved, and the working reliability is better.

2. The integral strength of the cable is improved, the toughness is better, the service life is prolonged, and the replacement frequency is reduced.

3. Has excellent temperature resistance and pressure resistance, high tensile strength and prolonged service life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present application.

FIG. 2 is a schematic cross-sectional view of an ABC three-phase power line according to an embodiment of the present application.

Reference numerals: the cable comprises a 1-A phase power line, a 2-B phase power line, a 3-C phase power line, (4, 5, 6) -ground wires, a 7-insulating fireproof wrapping tape layer, 8-steel wire armoring, 9-insulating anticorrosive layers, 10-resin filling core materials, 11-semiconductive shielding layers, 12-insulating layers, 13-insulating shielding layers, 14-semiconductive wrapping tapes and 15-first inner conductors.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the utility model discloses three-phase copper pipe cable, including ABC three-phase power cord (1, 2, 3) and three earth connection (4, 5, 6), ABC three-phase power cord is arranged for 120 degrees circumference each other around the cable central line, ABC three-phase power cord sets up one respectively between two liang two the earth connection just three earth connection are arranged for 120 degrees circumference each other around the cable central line, ABC three-phase power cord with the outside of three earth connection is provided with insulating fire prevention jointly and winds band layer 7, steel wire armor 8 and insulating anticorrosive coating 9, ABC three-phase power cord with three earth connection with insulating fire prevention has resin to fill core material 10 around the space packing between the band layer, the earth connection is copper strands. The insulating fireproof winding band layer is of a double-layer bonding integrated structure of a crosslinked polyethylene resin outer layer and a mica tape inner layer, and further is of a unidirectional spiral winding structure, and the spiral angle is 45-55 degrees. The insulating anticorrosive layer is made of PVC or PE resin, for example. The resin filling core material can adopt a polypropylene resin core material.

As shown in fig. 2, the ABC three-phase power line includes a first inner conductor 15, a semiconductive shielding layer 11, an insulating layer 12, an insulating shielding layer 13, and a semiconductive winding tape 14, which are sequentially wrapped outside the first inner conductor, where the first inner conductor is a copper stranded wire. The semiconductive shielding layer can be a nylon tape shielding layer, the insulating layer is an XLPE resin insulating layer, and the insulating shielding layer is preferably an EEA resin layer.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. Three-phase copper pipe cable, characterized by: the cable comprises an ABC three-phase power line (1, 2, 3) and three grounding wires (4, 5, 6), wherein the ABC three-phase power line is circumferentially arranged at 120 degrees around a cable central line, one grounding wire is respectively arranged between every two ABC three-phase power lines, the three grounding wires are circumferentially arranged at 120 degrees around the cable central line, an insulating fireproof wrapping tape layer (7), a steel wire armor (8) and an insulating anticorrosive layer (9) are jointly arranged on the outer sides of the ABC three-phase power line and the three grounding wires, the insulating fireproof wrapping tape layer is a double-layer bonding integrated structure of a crosslinked polyethylene resin outer layer and a mica tape inner layer, the space between the ABC three-phase power line and the three grounding wires and the insulating fireproof wrapping tape layer is filled with a resin filling core material (10), and the ABC three-phase power line comprises a first inner conductor (15) and a semi-conductive shielding layer (11) sequentially wrapping the, The insulation layer (12), the insulation shielding layer (13) and the semi-conductive winding belt (14), the first inner conductor and the grounding wire are copper stranded wires.

2. A three-phase copper tubing cable as claimed in claim 1 wherein: the insulating fireproof wrapping band layer is of a unidirectional spiral winding structure, and the spiral angle is 45-55 degrees.

3. A three-phase copper tubing cable as claimed in claim 1 wherein: the insulating anticorrosive coating is a PVC or PE resin insulating anticorrosive coating.

4. A three-phase copper tubing cable as claimed in claim 1 wherein: the semiconductive shielding layer is a nylon tape shielding layer.

5. A three-phase copper tubing cable as claimed in claim 1 wherein: the insulating layer is an XLPE resin insulating layer.

6. A three-phase copper tubing cable as claimed in claim 1 wherein: the resin filling core material is a polypropylene resin core material.

7. A three-phase copper tubing cable as claimed in claim 1 wherein: the insulation shielding layer is an EEA resin layer.