The types of cable conductor

Wire and cable conductor by one or a plurality of mutually insulated and outer insulation protective layer made of, will power or information transmitted from one point to another by wire. The conductor is its core, lost the conduction effect of conductor, cable will lose its value. In the copper and aluminum and other metal conductor as the representative of the "traditional forces, how to resist the" to "aluminum alloy, non fiber, carbon fiber and other new materials" representative of the "new power", it becomes more and more attractive to look forward to. At present, the metal conductor common according to the conductive arrangement, followed by gold, silver, copper, aluminum, iron (steel), but considering the application to the wire and cable connectors conductor on raw material costs and other factors, copper and aluminum are the high cost, especially copper, gold, silver, price is low, conductivity better than aluminum, is the most commonly used cable conductor. Copper conductor with the national standard cable of the oxygen free copper, electric wire and cable industry is a heavy material light industry, according to the relevant statistics show that, wires and cables with copper content of copper consumption accounted for about 60-70%. Copper conductor is a core component of copper core cable, regardless of how changes in external technology, progress, copper conductor costs can account for the total cost of cable head, reportedly as high as more than 75%. With the development of China's copper resources are depleted and the international copper prices rise, although the copper wire and crossover ethernet cable conductor is still in the "big brother", but people have begun to actively seek alternatives. Aluminum mineral resources in China is extremely rich, is one of the world's ten largest bauxite resources in the country, to maintain reserves of 25.03 tons of resources. As early as in 1957, our country has put the "Al generation copper" identified as national technology policy. In twentieth Century six, seventy time, due to copper as strategic materials subject to regulations of trade, a large number of domestic aluminium is used as the main material of conductor transmission cable. However, compared with the copper conductors, pure aluminum conductor conductor resistivity, low melting point, poor oxidation resistance, poor mechanical strength, cause problems often overheat, corrosion, short circuit and so on, in the early ninety's, he gradually withdrew from the low-voltage power distribution market, but there are still used in high voltage transmission field.