The Technical And Economic Comparison Of High Conductivity Wire And Study On The Factors Of Conductivity

In order to decrease the wire transmission loss in recent years, the China State Grid Corp has strengthened the application of energy-saving efforts of the wire and marketed high conductivity steel-cored aluminum strand, aluminum alloy-cored aluminum stranded wire and medium intensity aluminum stranded wire. Because of its effect of energy-saving wire, its development is highly valued by cable companies The high conductivity steel-cored aluminum stranded wire is made of high conductivity aluminum wire, so high conductivity aluminum conductor development has attracted wide attention. Based on conventional steel-cored aluminum stranded wire, the high conductivity steel-cored aluminum stranded wire is added elements of the alloy system optimization and coupled with a series of processes to ensured the conductivity increased the conductivity to 63%In this paper, I first compare the technical and economic comparison between 4kinds of energy saving wires and ordinary steel-cored aluminum stranded wire in power transfer line engineering of 220 k V. I compared of its electrical properties,including carrying capacity, transmission power and electric energy loss; compared economy, considering the cost factors of design, construction and operation, and analyzed of the advantages and characteristics of energy-saving wire.In addition, in order to study the influencing factors of high conductivity conductor's conductivity, I carried out density measurement, resistance measurement and a series of experiments on high conductivity aluminum specimen and obtained more accurate conductivity. Finally, the alloy system and the porosity associated with the conductivity of high conductivity steel-cored aluminum stranded wire were analyzed to put forward general elements of high conductivity aluminum used and sum up the possible way to improve the conductivity of aluminium wire.