CN201281979Y

CN201281979Y - Environment protection PVC insulation and sheath control cable

Info

Publication number: CN201281979Y
Application number: CNU2008202124121U
Authority: CN
Inventors: 王柏松; 王彩霞; 孙曙光
Original assignee: JIANGSU ZHONGCHAO CABLE Corp
Current assignee: JIANGSU ZHONGCHAO CABLE Corp
Priority date: 2008-10-08
Filing date: 2008-10-08
Publication date: 2009-07-29
Anticipated expiration: 2018-10-08

Abstract

The utility model discloses an environment-friendly PVC insulating and sheathing power cable, and the utility model solves the technical problem that by adopting the slin effect of the cable and applying a single crystal copper compound conductor structure, the specific resistance of the power cable can be reduced above 5 percent, and the cable product can achieve the environment-friendly standard. In order to solve the technical problem, the utility model adopts the technical scheme that the environment-friendly PVC insulating and sheathing power cable comprises at least one single crystal copper compound conductor; evenly-distributed insulating layers are covered outside the single crystal copper compound conductor; the insulating layers adopt the environment-friendly PVC insulation structure according with the ROHS standard; sheathes are arranged outside the insulating layers; and the insulating layers and the sheathes are coaxially sleeved in an overlapped manner outside the single crystal copper compound conductor. The utility model has the excellent characteristics of low specific resistance, good frequency characteristic, high electric conductivity, tight texture and stronger plastic deformability, and the like; the products manufactured meet the environment-friendly standard and have the characteristics of low cost and high profit rate at the same time.

Description

Environment-friendly PVC insulation and sheath power cable

Technical field

The utility model relates to a kind of power cable, especially a kind of environment-friendly PVC insulation and sheath power cable.

Background technology

Along with the continuous development of society, and people are to the continuous increase of the demand of electric power, and are also more and more as the demand of the power cord of the main carrier of electric power transfer.Copper accounts for more than 70% of power cord cost as the main raw material(s) of power cord.In a slice " rose " by sound, China electric wire manufacturing enterprise was stranded by " copper ", has experienced unprecedented cost pressure in recent years, and reducing cost under the situation that does not reduce product quality is the only way of enterprise's existence and development.Single crystal Cu is as a kind of new its characteristics of material: make the crystal of copper become the monocrystalline column crystal by a kind of new technology, the resistivity that greatly reduces copper has improved transmission frequency, thereby makes power cord guarantee that can suitably reduce the cross section under the qualified situation of resistance reduces material cost.Therefore adopting single crystal Cu to replace the conductor of ordinary copper as electric wire, is exactly the current technical problem of needing solution badly so that the resistance of electric wire reduces by 5%.The most important electric property of electric wire is to realize that decay is low, impedance is even, return loss is high, most important mechanical performance is bending property (especially under the low temperature), tensile strength, compression strength and anti-wear performance, the environmental stress during electric wire also should be able to bear transportation, storage, installs and use.If electric wire is installed in the demanding place of fire safety, its fire protecting performance is also very important, and wherein three most important factors are: flame-retarding power, smoke density and halogen gas burst size.Formal execution along with the RoHS of European Union standard, and domestic continuous reinforcement to environmental consciousness, exploitation environment-friendly type wire products become trend of the times, therefore, for satisfying the continuous demand in market, producing the wire products that reach environmental protection standard when keeping the original performance of product and reducing cost is brand new technical fields anxious to be developed.

Summary of the invention

The purpose of this utility model provides a kind of environment-friendly PVC insulation and sheath power cable, the technical problem that solves is by utilizing the kelvin effect of cable, use resistivity decreased that single crystal Cu composite conductor structure makes power cable more than 5%, and make cable product reach environmental protection standard by environment-friendly PVC insulation and the jacket structure that employing meets the RoHS standard.

For solving the problems of the technologies described above, the utility model is by the following technical solutions: a kind of environment-friendly PVC insulation and sheath power cable, comprise at least one single crystal Cu composite conductor, described single crystal Cu composite conductor is wrapped with equally distributed insulating barrier, described insulating barrier is the environment-friendly PVC insulation system that meets the RoHS standard, described insulating barrier also is provided with sheath outward, and described insulating barrier and sheath are coaxial nestable outside the single crystal Cu composite conductor.

Single crystal Cu composite conductor described in the utility model is made up of the coaxial parcel ordinary copper of the single crystal Cu of one deck at least conductor conductor of outermost.

Single crystal Cu conductor described in the utility model is a multicore monocrystalline copper cash.

The single crystal Cu composite conductor cross section that single crystal Cu conductor described in the utility model and ordinary copper conductor are formed is circular or fan-shaped.

Insulating barrier described in the utility model is the individual layer insulation system.

Sheath described in the utility model is the environment-friendly PVC individual layer jacket structure that meets the RoHS standard.

The utility model compared with prior art, have that resistivity is low, frequency response characteristic good, conductivity is high, quality is fine and close and good characteristic such as plastic deformation ability is superpower, the product of producing also has the characteristics that cost is low, profit margin is high when satisfying environmental protection standard.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1.

Fig. 2 is the structural representation of the utility model embodiment 2.

Embodiment

Below in conjunction with accompanying drawing the present invention is described in further detail.

As shown in Figure 1, insulation of the utility model environment-friendly PVC and sheath power cable, comprise at least one single crystal Cu composite conductor, described single crystal Cu composite conductor is wrapped with equally distributed insulating barrier 2, described insulating barrier 2 is for meeting the environment-friendly PVC insulation system of RoHS standard, and described insulating barrier 2 is the individual layer insulation system.Also be provided with sheath 3 outside the described insulating barrier 2, described sheath is the environment-friendly PVC individual layer jacket structure that meets the RoHS standard.Described insulating barrier 2 and sheath 3 are coaxial nestable outside the single crystal Cu composite conductor, and the thickness of described insulating barrier 2 is less than the thickness of sheath 3.

Single crystal Cu composite conductor described in the utility model is made up of the single crystal Cu of one deck at least conductor 1 coaxial parcel ordinary copper conductor 4 of outermost.Described single crystal Cu conductor 1 is a multicore monocrystalline copper cash.The single crystal Cu composite conductor cross section that single crystal Cu conductor 1 and ordinary copper conductor 4 are formed in embodiment shown in Figure 11 is circular, and the single crystal Cu composite conductor cross section that single crystal Cu conductor 1 and ordinary copper conductor 4 are formed in embodiment shown in Figure 22 is fan-shaped.

The single crystal Cu material that the utility model adopts is the spy who grows up the end of the nineties in last century Plant conductor, become the basic material of information and power electronic devices, electric power transfer. Single crystal Cu Be a kind of highly purified oxygen-free copper, oxygen content is less than 10ppm, its whole copper bar only by one or Several big columnar grains form, and do not have " crystal boundary " of intergranule, and " crystal boundary " can be right The signal that passes through produces reflection and refraction, causes distorted signals and resistivity to increase. Because monocrystalline Copper have that frequency response characteristic is good, electrical conductivity is high, quality is fine and close and plastic deformation ability superpower etc. Good characteristic has been widely used in electric power, high-fidelity high-definition stereo, video, data signal biography Power transmission line, high-quality telecommunication connector, precision instrumentation reach and partly lead with lead, integrated circuit The fields such as body device package. Therefore adopting single crystal Cu is that the power cord of conductor can improve greatly Transmission frequency, comparing single crystal Cu with traditional oxygen-free copper has following characteristics:

1, eliminated the impact of crystal boundary to resistivity and the signal of telecommunication, but high-property transmission electric power, height Fidelity transmission and reduction audio frequency, video and data signal, and resistivity decreased 5%;

2, good processing characteristics can prevent that microfilament (＜Φ 0.05mm) processing is on crystal boundary Fracture;

3, non-oxidizability, corrosion resistance are better than ordinary copper;

4, good pliability, its intensity and plasticity are respectively than ordinary copper high 10% and 90%;

5, electrical conductivity can reach 105%JACS (International Annealed Copper Standard).

When the utility model is produced, make the outermost layer of power cable conductor into the single crystal Cu conductor, Insulation and sheath material are the environment-friendly PVC that meets the RoHS standard, method of operating and common life Production. art is identical. Insulating barrier adopts advanced extrusion process, obtains even, airtight structure, Have the characteristics such as stable mechanical performance, the high and good humidity resistance of intensity. In addition, insulation Layer wraps on the single crystal Cu conductor outer wall tightly, has further improved the mechanical stability of cable. And, contain special stabilizing agent in the insulating barrier, can guarantee the compatibility with single crystal Cu, again Can guarantee the Long Service Life of electric wire. This design can obtain fabulous electric property simultaneously With stable mechanical performance, thereby the transmission performance of power cable and electrical conductivity are improved greatly. Obtain simultaneously fabulous electric property and stable mechanical performance, thereby improved the long-term of electric wire Service life and reliability. And the utility model is keeping original performance to meet national being correlated with In the time of standard, the heavy metals such as mercury, lead, cadmium, sexivalent chromium, poly-bromo biphenyl, poly-dibromodiphenyl ether The content of material meets the regulation of the RoHS of European Union standard, and material cost can reduce 5-10% simultaneously.

Claims

1. an environment-friendly PVC insulate and sheath power cable, comprise at least one single crystal Cu composite conductor, it is characterized in that: described single crystal Cu composite conductor is wrapped with equally distributed insulating barrier (2), described insulating barrier (2) is for meeting the environment-friendly PVC insulation system of RoHS standard, described insulating barrier (2) is outer also to be provided with sheath (3), and described insulating barrier (2) and sheath (3) are coaxial nestable outside the single crystal Cu composite conductor.

2. environment-friendly PVC insulation according to claim 1 and sheath power cable, it is characterized in that: described single crystal Cu composite conductor is made up of the single crystal Cu of one deck at least conductor (1) the coaxial parcel ordinary copper conductor (4) of outermost.

3. environment-friendly PVC insulation according to claim 2 and sheath power cable, it is characterized in that: described single crystal Cu conductor (1) is a multicore monocrystalline copper cash.

4. environment-friendly PVC insulation according to claim 3 and sheath power cable is characterized in that: the single crystal Cu composite conductor cross section that described single crystal Cu conductor (1) and ordinary copper conductor (4) are formed is for circular or fan-shaped.

5. according to any described environment-friendly PVC insulation of claim 1 to 4 and sheath power cable, it is characterized in that: described insulating barrier (2) is the individual layer insulation system.

6. environment-friendly PVC insulation according to claim 5 and sheath power cable is characterized in that: described sheath (3) is for meeting the environment-friendly PVC individual layer jacket structure of RoHS standard.