The use of various kinds of wires and cables in life is inevitable, such as power cables, network cables and some audio and video connecting cables. Most of their cores are made of metal copper by winding according to a certain process
Real copper
As we all know, the factors that affect the quality of wire rod are nothing more than material and technology, and the conductor used in the inner core of wire rod is the decisive factor for the quality of wire rod. So why do most wires use copper as the core
1. Conductivity of copper
Copper is the most widely used conductor material. One of the most important characteristics is its excellent conductivity. In addition, copper is more abundant than gold and silver, and its cost is more reasonable, so it is widely made into wire and cable, connector terminal, busbar, lead frame and other products
2. Corrosion resistance of copper
Copper has good corrosion resistance and is not easy to oxidize in dry air. In humid air containing carbon dioxide, the surface is easy to form a layer of toxic basic copper carbonate (copper green), which can protect copper from corrosion
3. Ductility of copper
After improvement by copper companies with mature technology and advanced equipment, copper with excellent ductility has become an ideal choice for cabling systems. For example, at junction boxes and terminals, copper can be bent, twisted and pulled without stretching or breaking. For larger cables, stranded copper wire (relative to solid wire) is usually used. The stranded wire makes the cable more flexible and has almost the same conductivity as single-stranded (solid) conductor
Therefore, wires made of these characteristics of copper are widely used in power and electronic industries (such as power lines, telephone lines and network lines). If the copper used in these products is of high quality, they not only have excellent performance, but also have a long service life
However, in order to sell at a low price and seize the market, some undesirable businesses will save production costs, cut corners, use copper clad iron, copper clad aluminum and other miscellaneous copper or produce wire diameters that do not meet the standards
The short service life of such wire will lead to signal transmission attenuation, increase of interference along the road, error of transmission data, and even serious threat to personal and property safety
Therefore, you must look for reliable businesses and select high-quality products that meet the standards and have relevant certification when purchasing
