CN201126727Y

CN201126727Y - Cuprum-packing-aluminum five-core cable

Info

Publication number: CN201126727Y
Application number: CNU2007200999124U
Authority: CN
Inventors: 杨玉秀
Original assignee: 杨玉秀
Current assignee: Tianjin Kanglide Duplex Metal Cable Technology Co., Ltd.
Priority date: 2007-10-13
Filing date: 2007-10-13
Publication date: 2008-10-01
Anticipated expiration: 2017-10-13

Abstract

A copper cladding aluminium 5-core cable is disclosed, interior of the 5-core cable is provided with five cores that are bonded together, each core is provided with a plurality of copper cladding aluminium conductors which are covered with insulating layers and whose sections are circular, wherein one of the five cores is located in the middle, the rest four cores surround the middle core; the five cores are covered by a belting which is covered by a sheath; the core located in the middle has circular section, and the rest four cores located around have non-circular section. Replacing the single copper conductor wire cable, the utility model not only can meet the performance requirements of original products, but also has low cost, light weight and excellent erosion resistance.

Description

The copper coated aluminum five-core cable

Technical field

This is practical to relate to a kind of electric wire, relates in particular to a kind of copper coated aluminum five-core cable.

Background technology

Since the second half year in 2005, soared all the way by the copper valency that influences of international market, make with copper to be that the cost of the electric wire of conductor improves constantly, cause producer price to improve constantly, cause the enterprise that uses copper to produce electric wire to face the life and death test, under this market situation as conductor, relevant industry is being sought substitute as possible, under the situation that guarantees the like product performance, production cost is reduced, try to achieve existence so that produce the enterprise of electric wire.

The utility model content

Technical problem underlying to be solved in the utility model is, overcome the existing above-mentioned defective that exists based on the electric wire of copper conductor material, the utility model provides a kind of copper clad aluminum conductor cable, to substitute simple copper conductor electric wire, it not only can satisfy the performance requirement of original product, and cost is low, and is in light weight, also has good anti-corrosion.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of copper coated aluminum five-core cable, it is characterized in that, its inside is provided with five cores that combine, each core is provided with many outsides and all is coated with the copper clad aluminum conductor of the cross section of insulating barrier for circle, in the middle of one of them core of this five core is positioned at, other four cores be centered around this intermediate core around, this five core is coated with band, band coats sheath outward again.

Aforesaid copper coated aluminum five-core cable, the core sectional area in the middle of wherein being positioned at is for circular, and the sectional area that is positioned at its other four cores all around is non-circular.

The utility model adopts copper clad aluminum conductor can play the effect of the AC impedance (resistance) of reduction high order harmonic component generation.In other use occasions,, satisfy the conductor DC resistance requirement by taking to improve the volume and the corresponding technological measure of copper in the copper cover aluminum monofilament.

And AC resistance is the main foundation of ampacity, principle according to kelvin effect, the surface of solid conductor, it is big that the electric current that the center of circle unit are of the current ratio lead that its unit are is passed through is passed through is wanted, that is to say, the center of circle of large size conductor is in the identical area of a circle of same conductor, and the center of circle is littler than the electric current that circumference passes through, and is the most reasonable, most economical so center of circle conductor is formed with different metals with the circumference conductor.

Influence the AC resistance index except that D.C. resistance, kelvin effect, also have proximity effect, compare with the copper conductor of identical D.C. resistance, behind the employing copper composite conductor, in the single conductor, aluminium is in the center of circle, and copper is in outer rim; In stranded conductor, internal layer is an aluminium, skin is a fine copper, and aluminium does not all have the copper sensitivity to kelvin effect and proximity effect, and copper clad aluminum conductor can make the conductor total cross section increase a part simultaneously, therefore it is long-pending also to have increased surface of conductors, improved the radiating condition of cable, increased area of dissipation, and the conductive coefficient of aluminium and copper are close, under equal material cost condition, it is much economical that the index of AC resistance is wanted.

The utility model has been compared following advantage with existing simple copper conductor electric wire:

1. have good anti-corrosion: aluminum ratio copper is perishable, but because copper clad aluminum material metallurgyization fully, aluminium is coated by copper fully, can not contacted by water, air, does not reach fully and coppery performance.For aluminium conductor, particularly in the coastal area, the chloride ion that salt fog contained in the atmosphere can condense upon the surface of aluminium, and easily impurity and the defective on the surface causes local corrosion on every side, forms hole, crackle and micro cell, the corrosion of aggravation aluminium conductor.

2. the cost low weight is light: compare with the copper core cable of constructed index, the copper clad aluminum conductor cable is cost-saved more than 40%.The proportion of copper-clad aluminum conductor only is the 37%-40% of pure copper wire.Under online footpath, the equiponderant situation, its length is 2.5 times of pure copper wire.

3. good weldability: therefore copper-clad aluminum conductor has with the same solderability of pure copper wire because its surface has coated one deck fine copper with one heart, convenient production.

4. adopt copper clad aluminum conductor can satisfy at present continued electric wire for many years in the custom of aspects such as product type selecting, design, use, installation, also the binding post to cable presses, soldering is connected to profit.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the cutaway view of utility model copper coated aluminum five-core cable

Embodiment

As shown in Figure 1, the utility model copper coated aluminum five-core cable, its inside is provided with five cores that combine, each core is provided with many outsides and all is coated with the copper clad aluminum conductor of the cross section of insulating barrier 3 for circle, every copper cover aluminum conductor is to be coated with copper layer 2 at aluminium conductor 1, in the middle of one of them core of this five core is positioned at, other four cores be centered around this intermediate core around, this five core is coated with band 4, and band coats sheath 5 outward again.

Core sectional area in the middle of described being positioned at is for circular, and the sectional area that is positioned at its other four cores all around is non-circular.

In the present embodiment, the cross section of a core in the middle of being positioned in five cores is for circular, and sectional area is 70mm ²And the sectional area of four cores around this intermediate core is non-circular, wherein the sectional area of three cores 150mm more greatly ²The sectional area of another core is less to be 70mm ², and band and sheath are prior art, and wherein band adopts nonwoven fabrics, and sheath is to be made by PVC.

The utility model is applicable to the voltage of plurality of specifications, for example: the voltage of 0.6/1 kilovar.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

In sum, the utility model is on structural design, use practicality and cost benefit, it is required to meet industry development fully, and the structure that is disclosed also is to have unprecedented innovation structure, have novelty, creativeness, practicality, the regulation that meets relevant novel patent requirement is so mention application in accordance with the law.

Claims

1, a kind of copper coated aluminum five-core cable, it is characterized in that, its inside is provided with five cores that combine, each core is provided with many outsides and all is coated with the copper clad aluminum conductor of the cross section of insulating barrier for circle, in the middle of one of them core of this five core is positioned at, other four cores be centered around this intermediate core around, this five core is coated with band, band coats sheath outward again.

2, copper coated aluminum five-core cable according to claim 1 is characterized in that the core sectional area in the middle of described being positioned at is circle, and the sectional area that is positioned at its other four cores all around is non-circular.