Copper core is a common cable conductor material, which will contain more or less certain impurities, the less impurities of copper, the better the electrical conductivity. So identify the quality of copper core is good or bad?
The purity of the copper core is usually reflected in the color, and the color of the cross-section can be roughly judged whether it is pure copper wire.The best quality copper is copper or red copper, the national standard copper wire requires the purity of the copper core to reach 99.95% and above, the copper core shows a partial purplish red and good gloss. The lighter the color of copper, yellow or white is the performance of poor copper core quality. This kind of copper wire core impurities and poor mechanical strength, even a little force will break the wire. If it is coiled into a small circle, the inferior copper core is easy to rebound due to poor toughness, if it can maintain the ring shape, and then slowly straighten and recover, there is good ductility,it means that the copper core quality is good.When we buy copper wire and cable, we should also pay attention to the error of copper wire length and section wire diameter, whether it is within the standard range. Carefully check the wire and cable packaging logo, whether the product information is complete, including the factory name and address, product certification, date of delivery, wire and cable parameters. In addition to looking at the quality of the copper core, it is also necessary to look at whether the wire core is in the center of the insulation layer, and whether there is a bias caused by poor manufacturing process.
Double star cable conductor wire core using high purity oxygen-free copper, has better ductility and conductivity, not easy to heat, low carbon environmental protection quality stable, longer service life, is the ideal conductor material in wire and cable manufacturing. Double star cable production in line with the national standard requirements and higher than the national standard requirements of wire and cable products, adhere to the selection of high-quality raw materials, strict implementation of the quality control system, from the purchase of raw materials, production, testing every link to ensure the quality of wire and cable, to bring more security for customers.
