copper clad aluminum busbar instead of copper busbar in switchgear, bus duct and transformer

         Good conductivity: performance of  copper clad aluminum busbar whose volume ratio is 17% .Its current capacty is 85% of pure copper busbar .In other words , its length is 2.3-2.5 times and its density is 38%-42% of pure copper busbar with the same size and weight .Good mechanical property: it is of excellent tensile strength , flexibility and extensibility