CN208335846U - A kind of flame-retardant copper core PVC insulated power cable - Google Patents

A kind of flame-retardant copper core PVC insulated power cable Download PDF

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Publication number
CN208335846U
CN208335846U CN201820995537.XU CN201820995537U CN208335846U CN 208335846 U CN208335846 U CN 208335846U CN 201820995537 U CN201820995537 U CN 201820995537U CN 208335846 U CN208335846 U CN 208335846U
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CN
China
Prior art keywords
insulating layer
flame
periphery
power cable
surrounded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201820995537.XU
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Chinese (zh)
Inventor
袁辉
肖京
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Lianchuang Cable Co Ltd
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Jiangxi Lianchuang Cable Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Priority to CN201820995537.XU priority Critical patent/CN208335846U/en
Application granted granted Critical
Publication of CN208335846U publication Critical patent/CN208335846U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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  • Insulated Conductors (AREA)

Abstract

The utility model provides a kind of flame-retardant copper core PVC insulated power cable, belong to power cable technical field, including three conducting wires, flame retardant coating, shielded layer, the first insulating layer and second insulating layer, three conducting wires are shape, the identical conducting wire of size.Conducting wire is the sector conductor that central angle is 120 ° and edge is equipped with fillet, three conducting wires are combined concentrically, and the plane of adjacent two conducting wires is bonded to each other, and the cambered surface of three conducting wires combines to form circumference, each wire includes fire-resistant isinglass belt and conductor, and fire-resistant isinglass belt is around conductor periphery;Conducting wire periphery is surrounded with the first insulating layer, and the first insulating layer is made of Ceramic silicon rubber, and thickness is not less than 5mm, and the first insulating layer periphery is surrounded with shielded layer, and shielding layer periphery is surrounded with flame retardant coating, and flame retardant coating periphery is surrounded with second insulating layer.The construction of cable stabilization, good insulating, fire resistance are strong.

Description

A kind of flame-retardant copper core PVC insulated power cable
Technical field
The utility model relates to power cable technical fields, more particularly to a kind of flame-retardant copper core polyvinyl chloride Insulated power cable.
Background technique
Power cable is the cable for being used for transmission and distributing electric energy, and power cable is usually used in Urban Underground power grid, power station Lead line, industrial and mining enterprises' in-line power and mistake river sea submarine transmission line.In power circuit, cable proportion just gradually increases Add.Power cable is in the basic routing line of electric system to the cable product for transmitting and distributing high-power power, including 1- 500KV and more than various voltage class, the power cable of various insulation.There are certain defect, the structures of cable for existing cable It is unstable, insulating properties is poor, electric shock phenomenon usually occurs because extrusion friction is damaged, leads to unexpected generation;And fire resistance Difference, it is difficult to ensure the safe handling of power cable in case of fire.
Utility model content
In order to overcome the drawbacks of the prior art, a kind of fire-retardant resistance to the technical problem to be solved by the utility model is to propose Fiery copper core PVC insulated power cable, the construction of cable stabilization, good insulating, fire resistance are strong.
For this purpose, the utility model uses following technical scheme:
The utility model provides a kind of flame-retardant copper core PVC insulated power cable, including three conducting wires, resistance to Fire bed, shielded layer, the first insulating layer and second insulating layer, shape, the size of three conducting wires are identical and are central angle For 120 ° of sector conductor, three conducting wires are combined concentrically, and the plane of adjacent two conducting wires is bonded to each other, three institutes The cambered surface for stating conducting wire combines to form circumference, and the edge of the every conducting wire is equipped with fillet, and including fire-resistant isinglass belt and leads Body, the fire-resistant isinglass belt is around the conductor periphery;
The conducting wire periphery is surrounded with first insulating layer, and first insulating layer is made of Ceramic silicon rubber, And thickness is not less than 5mm, first insulating layer periphery is surrounded with the shielded layer, and the shielding layer periphery is surrounded with described resistance to Fire bed, the flame retardant coating periphery are surrounded with the second insulating layer.
In the preferable technical solution of the utility model, fire-retardant glass is filled between told conducting wire and first insulating layer Glass cordage.
In the preferable technical solution of the utility model, the conductor is twisted by a plurality of copper wire.
In the preferable technical solution of the utility model, waterproof layer is equipped between the flame retardant coating and the shielded layer.
In the preferable technical solution of the utility model, the second insulating layer is made of polyvinyl chloride.
The utility model has the following beneficial effects:
A kind of flame-retardant copper core PVC insulated power cable provided by the utility model, the conducting wire of the cable is by three Root conducting wire is combined concentrically, and the plane of adjacent two conducting wires is bonded to each other, and circumference is formed between cambered surface, and structure is steady It is fixed, good stability can be kept being squeezed, and be unlikely to deform;Conducting wire periphery be also surrounded with other than having flame retardant coating by First insulating layer made of Ceramic silicon rubber, the heated flame retardant coating for being changed into ceramic tubular of Ceramic silicon rubber, effectively enhances The fire resistance of cable, while improving insulation effect.
Detailed description of the invention
Fig. 1 is a kind of flame-retardant copper core PVC insulated power cable that specific embodiment of the present invention provides Structural schematic diagram.
In figure:
1, second insulating layer;2, conducting wire;3, flame retardant coating;4, waterproof layer;5, shielded layer;6, the first insulating layer;7, fire-retardant glass Glass cordage;21, fire-resistant isinglass belt;22, conductor.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, providing a kind of flame-retardant copper core PVC insulated power cable in the present embodiment, including three Root conducting wire 2, flame retardant coating 3, shielded layer 5, the first insulating layer 6 and second insulating layer 1, shape, the size phase of three conducting wires 2 It together and is the sector conductor that central angle is 120 °, three conducting wires 2 are combined concentrically, and adjacent two conducting wires 2 is flat Face is bonded to each other, and the cambered surface of three conducting wires 2 combines to form circumference, and the edge of the every conducting wire 2 is equipped with fillet, in institute It states in 2 production process of conducting wire, edge is made into fillet, and to keep 2 structure of conducting wire more stable, three conducting wires 2 are wrapped Fire-resistant isinglass belt 21 and conductor 22 are included, the fire-resistant isinglass belt 21 is around 22 periphery of conductor;
2 periphery of conducting wire is surrounded with first insulating layer 6, and first insulating layer 6 is made of Ceramic silicon rubber, And thickness is not less than 5mm, 6 periphery of the first insulating layer is surrounded with the shielded layer 5, and 5 periphery of shielded layer is wrapped Flame retardant coating 3 is stated, 3 periphery of flame retardant coating is surrounded with the second insulating layer 1.
The conducting wire 2 of a kind of above-mentioned flame-retardant copper core PVC insulated power cable, the cable is same by three conducting wires 2 The heart is composed, and the plane of adjacent two conducting wires 2 is bonded to each other, and forms circumference between cambered surface, stable structure, even if by It squeezes but 22 interplanar of each conductor mutually supports, can also keep good stability, be unlikely to deform;2 periphery of conducting wire is resistance in addition to having The first insulating layer 6 made of Ceramic silicon rubber is also surrounded with outside fire bed 3, Ceramic silicon rubber is heated to be changed into ceramic tubular Flame retardant coating 3, effectively enhance the fire resistance of cable, while improving insulation effect.
It should be noted that flame retardant coating 3, the shielded layer 5, first insulating layer 6 and described second described above Existing cable manufacture craft can be used to make in the around-packing technology such as insulating layer 1, and current cable manufacture craft ten has been divided into It is ripe and be not the claimed technological means of the application, therefore this will not be repeated here.
Further, combustion-proof glass fiber rope 7 is filled between told conducting wire 2 and first insulating layer;Fireproof glass Cordage is environment friendly and pollution-free, has the characteristics that fire resistant anticorrosive, and refractory glass fiber rope 7, which is added, makes the cable be provided with fire prevention Function can effectively extend the service life of the cable.
Further, the conductor 22 is twisted by a plurality of copper wire;The twisted conductor 22 formed of copper wire is relative to single For conductor, flexibility is more prominent, bending property is preferable, and electric conductivity is also more preferable;It is easier to be processed into sector simultaneously, improving should The production efficiency of cable.
Further, waterproof layer 4 is equipped between the flame retardant coating 3 and the shielded layer 5;The waterproof layer 4 can be by butyl Rubber or ethylene propylene diene rubber are made, and the waterproof layer 4 can improve the waterproof performance of cable.
Further, the second insulating layer 1 is made of polyvinyl chloride;Polyvinyl chloride has anti-flammability, acid resistance, makes electricity Power cable can play good insulating properties, securely and reliably, while convenient to use also improve the fire resistance of power cable.
The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality In the case where with novel spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality It is not limited to the particular embodiment disclosed with novel, other embodiments fallen into claims hereof all belong to In the range of the utility model protection.

Claims (5)

1. a kind of flame-retardant copper core PVC insulated power cable, it is characterised in that:
Including three conducting wires (2), flame retardant coating (3), shielded layer (5), the first insulating layer (6) and second insulating layer (1), three institutes Shape, the size for stating conducting wire (2) are identical and be central angle be 120 ° of sector conductor, and three conducting wires (2) are combined concentrically, And the plane of adjacent two conducting wires (2) is bonded to each other, the cambered surface of three conducting wires (2) combines to form circumference, every institute The edge for stating conducting wire (2) is equipped with fillet, and includes fire-resistant isinglass belt (21) and conductor (22), the fire-resistant isinglass belt (21) Around the conductor (22) periphery;
Conducting wire (2) periphery is surrounded with first insulating layer (6), first insulating layer (6) by Ceramic silicon rubber It is made, and thickness is not less than 5mm, the first insulating layer (6) periphery is surrounded with the shielded layer (5), and the shielded layer (5) is outside Around being surrounded by the flame retardant coating (3), flame retardant coating (3) periphery is surrounded with the second insulating layer (1).
2. a kind of flame-retardant copper core PVC insulated power cable according to claim 1, it is characterised in that:
Combustion-proof glass fiber rope (7) are filled between told conducting wire (2) and first insulating layer (6).
3. a kind of flame-retardant copper core PVC insulated power cable according to claim 1, it is characterised in that:
The conductor (22) is twisted by a plurality of copper wire.
4. a kind of flame-retardant copper core PVC insulated power cable according to claim 1, it is characterised in that:
Waterproof layer (4) are equipped between the flame retardant coating (3) and the shielded layer (5).
5. a kind of flame-retardant copper core PVC insulated power cable according to claim 1, it is characterised in that:
The second insulating layer (1) is made of polyvinyl chloride.
CN201820995537.XU 2018-06-26 2018-06-26 A kind of flame-retardant copper core PVC insulated power cable Expired - Fee Related CN208335846U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820995537.XU CN208335846U (en) 2018-06-26 2018-06-26 A kind of flame-retardant copper core PVC insulated power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820995537.XU CN208335846U (en) 2018-06-26 2018-06-26 A kind of flame-retardant copper core PVC insulated power cable

Publications (1)

Publication Number Publication Date
CN208335846U true CN208335846U (en) 2019-01-04

Family

ID=64785158

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820995537.XU Expired - Fee Related CN208335846U (en) 2018-06-26 2018-06-26 A kind of flame-retardant copper core PVC insulated power cable

Country Status (1)

Country Link
CN (1) CN208335846U (en)

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190104

CF01 Termination of patent right due to non-payment of annual fee