Can aluminum plated copper wire be used?
The structure of copper clad aluminum wire is characterized by:The outer layer is pure copper or copper, the thickness is small, and the core is aluminum metal. The cable TV signal and mobile communication signal frequency is very high, generally in 50 ~ 800MHz, due to the "skin effect", the high frequency current transmission mainly concentrated in the surface layer of the conductor, and aluminum itself also has good conductivity, and the copper clad aluminum composite materials instead of copper or copper can ensure the transmission efficiency of the cable. The price of aluminum is lower than that of copper, and its density is less than 1/3 of copper. Therefore, the weight of the unit length of the wire rod can be greatly reduced, which is beneficial to the installation and construction of the cable. Therefore, copper clad aluminum wire has broad application prospects.
Compared with pure copper wire, copper clad aluminum wire has the following characteristics:1, the metal copper is saved, and the production cost is greatly reduced. At the same time with the copper clad aluminum instead of copper, saving scarce resources.2, it improves the stability and reliability of coaxial cable signal transmission. Coaxial cable used as aluminum outer conductor, because the expansion coefficient of copper clad aluminum wire for aluminum and copper is relatively closer, thereby reducing due to the temperature change of the cable inner conductor and the outer conductor expansion mismatch caused by fault connection.3, copper wrapped aluminum wire is light in quality and small in density, easy to transport and install, greatly reducing the labor intensity in network construction. The mass ratio of copper to aluminum is 3.3 to 1, and the density of copper-clad aluminum wire is only 37.3% to 40.8% of the density of pure copper. Under the same diameter, the length of the 1 ton copper clad aluminum wire is 1.7 to 2.45 times the length of the pure copper wire of the same quality.
Yes, aluminum plated copper wire is legal if it conforms to the national standards, but it must be marked with its material.
