CN203480854U

CN203480854U - Copper-clad aluminum core wire and cable

Info

Publication number: CN203480854U
Application number: CN201320587207.4U
Authority: CN
Inventors: 周玲燕; 毛华撑; 鲁运力; 陈美红; 周妙根; 钟名丁; 谌勇
Original assignee: JIANGXI PACIFIC CABLE Co Ltd
Current assignee: JIANGXI PACIFIC CABLE GROUP CO., LTD.
Priority date: 2013-09-23
Filing date: 2013-09-23
Publication date: 2014-03-12
Anticipated expiration: 2023-09-23

Abstract

The utility model discloses a copper-clad aluminum core wire and cable which comprises an aluminium wire, a cylindrical copper sheet, a wrapping tape isolation layer, a silicone rubber insulating layer and a sheath layer. The center of a conductive wire core is the aluminium wire and the aluminium wire is wrapped by a layer of cylindrical copper sheet conductive wire core so as to form the copper-clad aluminum conductor wire. The conductor wire core is successively wrapped by the isolation layer and the silicone rubber insulating layer. The sheath layer is arranged on the outermost layer of the conductive wire core. In comparison with a copper-core electric wire and cable of the same specification, the copper-clad aluminum core wire and cable has the same conductivity, is light in weight, is easy to process and is convenient to use. By the adoption of the copper-clad aluminum core wire and cable, more than 80% of copper is saved, and costs of the product are reduced effectively. In addition, in comparison with the copper-core electric wire and cable, the copper-clad aluminum core wire and cable has advantages of good conductivity, high strength, low contact resistance, good corrosion resistance and wide application range.

Description

A kind of aluminum core cable and line covered by copper

Technical field

The utility model relates to electric wire, relates in particular to a kind ofly to take copper clad aluminum conductor as conductor wire core, take and gathers the electric wire that atmosphere ethene, polyethylene, crosslinked polyethylene or rubber are insulating material.

Background technology

Now widely used copper core BLV is to using copper as conductor wire core.China is the country of a copper resource shortage, every year will be from a large amount of copper of external import.As the huge non-ferrous metal of a kind of demand, the copper valency on international market is constantly soaring, and spot price rises violently 7. 3 ten thousand yuan from 4. 7 ten thousand yuan per ton of the beginning of the year from the beginning of this year.Economizing on copper and be not only the needs of Reducing Cost in Enterprises, is also the problem with national strategy meaning.Aluminium is the non-ferrous metal that a kind of electric conductivity is only second to copper, and China has very abundant reserves and rich production and processing ability.In the wire of transmission of electricity use, aluminium is used widely as the substitute of copper.Because the price of aluminium is far below copper, and the proportion of aluminium is less than copper, the conductor wire core length that aluminium is made is more than three times of equivalent weight copper cash.But because the surface of aluminium is very easily oxidized, oxide layer is tougher, cause contact resistance large, and corrosion resistance and mechanical performance particularly intensity are all not so good as copper, and range of application is very limited.In order to solve the deficiencies in the prior art, the utility model proposes a kind of aluminum core cable and line covered by copper.

Utility model content

For the problems referred to above, the utility model aims to provide a kind of aluminum core cable and line covered by copper.

For realizing this technical purpose, scheme of the present utility model is: a kind of aluminum core cable and line covered by copper, comprises aluminum steel, cylindric copper sheet, band separator, silicone rubber insulation layer, restrictive coating; The heart of described conductor wire core is that aluminum steel is surrounded by the cylindric copper sheet conductor wire core of one deck outward, has formed the wire of copper clad aluminum conductor; Described conductor wire core is surrounded by separator, silicone rubber insulation layer outward successively; Described conductor wire core outermost layer is provided with restrictive coating.

As preferably, described silicone rubber insulation layer has excellent hot property, electric property, and fire resistance, particularly emits without toxic gas during high-temp combustion, and the Si0z layer of generation still invests on conductor wire core, keeps the respective performances of cable.

As preferably, described restrictive coating is the fine restrictive coating of a kind of fourth.Severe for environment for use; the cable of complicated condition; as welding machine cable; not only require insulation, have certain thermal endurance, also require tear-proof, resistance to wear etc.; adopt the fine sheath of fourth; can reach the effect of protection silicone rubber insulation layer, can effectively utilize again the fine softness of fourth, waterproof, the advantage such as wear-resisting, corrosion-resistant simultaneously, thereby effectively play the effect of protection.

The technical solution of the utility model is: conductor wire core is to be parallel to each other or the conductor wire core of two or two above copper clad aluminum conductors being mutually wound around, and two or two above copper cover aluminum are led

The conductor wire core skin of body has silicone rubber insulation layer.Further measure be parallel to each other or two of being mutually wound around or two above copper clad aluminum conductors between have silicone rubber insulation layer.Take copper clad aluminum conductor like this as conductor wire core, by traditional expressing technique, the insulating material such as polyvinyl chloride, polyethylene, crosslinked polyethylene or rubber are coated on around conductor wire core, form the insulation of electric wire.Copper clad aluminum conductor is on aluminium bar, to be coated with one heart the bimetallic composite conductor of one deck uniform thickness copper sheet, after coated, by tension and compression, can form the copper-clad aluminum conductor of all size.Copper aluminium border forms stronger metal combination, makes wire become as a whole.

Beneficial effect

Aluminum core cable and line covered by copper of the present utility model, good conductivity, intensity that copper-clad aluminum conductor has copper concurrently are high, and the density of aluminium is little, easily process plurality of advantages, self has again the features such as copper layer even density, high compactness, high extensibility.The utility model is compared with prior art scheme, has effect as follows: one, compare with the copper core cable and line of same specification; the conductivity of aluminum core cable and line covered by copper is identical, lightweight, easily processing; easy to use, economize on copper more than 80%, effectively reduce the cost of product; Its two, higher than the good conductivity of aluminum core cable and line, intensity, contact resistance is little, the only property of corrosion resistant is good, has wide range of applications.

Accompanying drawing explanation

Fig. 1 is a kind of structural representation of aluminum core cable and line covered by copper;

In figure: aluminum steel 1, cylindric copper sheet 2, band separator 3, silicone rubber insulation layer 4, restrictive coating 5.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.

As shown in Figure 1, a kind of aluminum core cable and line covered by copper of the utility model embodiment, comprises aluminum steel 1, cylindric copper sheet 2, band separator 3, silicone rubber insulation layer 4, restrictive coating 5; The heart of described conductor wire core is to be surrounded by cylindric copper sheet 2 conductor wire cores of one deck outside aluminum steel 1, has formed the wire of copper clad aluminum conductor; Described conductor wire core is surrounded by separator 3, silicone rubber insulation layer 4 outward successively; Described conductor wire core outermost layer is provided with restrictive coating 5.

As preferably, described silicone rubber insulation layer 4 has excellent hot property, electric property, and fire resistance, particularly emits without toxic gas during high-temp combustion, and the Si0z layer of generation still invests on conductor wire core, keeps the respective performances of cable.

As preferably, described restrictive coating 5 is the fine restrictive coating of a kind of fourth.Severe for environment for use; the cable of complicated condition; as welding machine cable; not only require insulation, have certain thermal endurance, also require tear-proof, resistance to wear etc.; adopt the fine sheath of fourth; can reach the effect of protection silicone rubber insulation layer, can effectively utilize again the fine softness of fourth, waterproof, the advantage such as wear-resisting, corrosion-resistant simultaneously, thereby effectively play the effect of protection.

The conductor wire core skin of body has silicone rubber insulation layer 4.Further measure be parallel to each other or two of being mutually wound around or two above copper clad aluminum conductors between have silicone rubber insulation layer 4.Take copper clad aluminum conductor like this as conductor wire core, by traditional expressing technique, the insulating material such as polyvinyl chloride, polyethylene, crosslinked polyethylene or rubber are coated on around conductor wire core, form the insulation of electric wire.Copper clad aluminum conductor is on aluminium bar, to be coated with one heart the bimetallic composite conductor of one deck uniform thickness copper sheet, after coated, by tension and compression, can form the copper-clad aluminum conductor of all size.Copper aluminium border forms stronger metal combination, makes wire become as a whole.

The above; it is only preferred embodiment of the present utility model; not in order to limit the utility model, any trickle modification that every foundation technical spirit of the present utility model is done above embodiment, be equal to and replace and improve, within all should being included in the protection range of technical solutions of the utility model.

Claims

1. an aluminum core cable and line covered by copper, comprises aluminum steel, cylindric copper sheet, band separator, silicone rubber insulation layer, restrictive coating; It is characterized in that: the heart of described conductor wire core is that aluminum steel is surrounded by the cylindric copper sheet conductor wire core of one deck outward, has formed the wire of copper clad aluminum conductor; Described conductor wire core is surrounded by separator, silicone rubber insulation layer outward successively; Described conductor wire core outermost layer is provided with restrictive coating.

2. a kind of aluminum core cable and line covered by copper according to claim 1, is characterized in that: described restrictive coating is the fine restrictive coating of a kind of fourth.