Copper coated steel strand what? It is believed that many people do not understand very well that the copper-clad steel strand is an important part of the grounding wire. The structure of the copper-clad steel strand is mainly made by twisting a fixed number of copper-clad steel single wires. The application of copper-clad steel strands is extensive, with low cost, high strength and low density. What is the use of copper-clad steel strands and what are the advantages of copper-clad steel strands? The following Xiao Bian will take everyone together to find out.
Copper Clad Steel Strand Introduction
The copper clad steel strand is made of a certain number of single copper clad steel and widely used in lightning protection earthing of high frequency coaxial cable, steel communication, electrified railway, metro light rail, railway, airport, network communication and other places. , anti-static grounding, protective grounding, power and petrochemical system grounding lines.
Copper Clad Steel Strand Use
Copper-clad steel strands are widely used in lightning protection grounding, anti-static grounding, protective earthing, power and petrochemical system grounding in high-frequency coaxial cable, steel communication, electrified railway, subway light rail, railway, airport, network communication and other places. Line and so on.
Application area
Military covered wire conductors; power industrial grounding rods; braided shielded wires for power cables; connectors for various electronic components; reinforced conductive cores for special cables; overhead lines for power transmission and telephone lines; The conductors; electrified railways, rail transit line bearing lines and trolley lines; cable TV subscriber line and subscriber line coaxial cable inner conductor material; computer local area network, access network cable, field cable inner conductor material.
Copper Clad Steel Strand What are the advantages
1, the unique manufacturing process: the use of horizontal continuous casting production process, the process for the domestic initiative. The continuous casting process uses copper alloy plating to form an alloyed overplated layer when the electrolytic copper is heated to 1200oC. The bimetal interface is completely and firmly bonded to achieve ductile metallurgical fusion between copper and steel, forming a single composite body that can be drawn. As a single metal, it is arbitrarily drawn without disjoint, buckling or cracking.
2, better anti-corrosion properties: no residual bimetallic inside, better corrosion resistance. The horizontal continuous casting process adopts high-temperature melting, the residue is calcined and overflows the copper surface, and will not remain in the copper-clad rigid conductor, so no internal corrosion phenomenon will occur. The use of a flat steel or construction foundation as a grounding body affects the reliability of the grounding device due to poor corrosion resistance. The use of galvanized angle steel (round steel) as the grounding body, although slowing the corrosion of the steel, but because zinc is more active than steel, the corrosion rate of zinc is faster than steel, because the galvanized layer meets the soil, and it is constantly Corrosion of the continuous changes, poor stability, short life (usually under 5 years) need to detect resistance every year, the workload is large. Copper-clad steel stranded copper-clad metal composites are used as grounding conductors and lightning conductors. Due to the poor activity of copper metals, they do not react with acids, alkalis and salts. According to the skin effect, when the surface copper layer is more than 0.25mm, the current carrying capacity of the steel core is very small, and the copper conductor is sent to the underground by the strength of the steel, and the surface copper conductor is sent to the underground, and the surface copper layer will not be corroded, so the grounding occurs. Bar resistance does not change over time, can be maintenance-free, and can last up to 50 years.
3, better electrical performance: Copper clad steel wire surface is oxygen-free copper, good electrical conductivity, the inner layer of high-quality carbon steel, skin effect principle of conductive, excellent magnetic properties. Resistance is much lower than conventional materials such as steel and galvanized steel. The surface is oxygen-free copper.
4. High adhesion of copper layer: Because the surface of the copper layer and the steel is a combination of molecules, the degree of adhesion is high. When the twisted wire is twisted, the copper layer will not be destroyed, and no disconnection will occur. Appearance, cracking phenomenon.
5, low prices: Because of its corrosion resistance, electrical properties, tensile strength and other properties exactly the same as pure copper products, it can directly replace the pure copper conductor. Compared to ground conductors of pure copper, the price is low, saving a lot of money for the project.
6. Convenient installation: Horizontal continuous casting copper clad steel grounding products are welded with exothermic welding flux, with firm joints, good stability, and easy to use, which can meet the low resistance requirements for special occasions.
Editor's summary: The relevant information on the use of copper clad steel strands and copper clad steel strands has been introduced here for everyone. I hope this article will be helpful to everyone. If you still have something you don't understand, you can leave a message to Xiaobian at the bottom. We will answer your questions as soon as possible.
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