The conductivity of copper and electric copper is secon […]
The conductivity of copper and electric copper is second only to silver and higher than other metal materials, so it is used as a standard for testing the conductivity of raw materials. Copper not only has excellent electrical conductivity, but also has high melting point (1083°C), good physical properties, corrosion resistance, reliability in work, and long service life. It is the most widely used conductive raw material. Copper used in the industrial production of electric power engineering, electronic devices and household appliances and other major uses is generally refined to a purity of 99.98% or higher.
The common transmission line in the home is the No. 14 copper transmission line. The diameter of the copper electrical conductor is 1.63mm and the cross-section is 2.08mm. The length of the No. 14 copper transmission line consumed by the United Kingdom every year can circle the earth's equator 3670 times, which is equivalent to 196 round trips to the moon or one trip to the sun. Experts from the International Copper Technology Professional Research Association believe that choosing a copper transmission line with a large cross-section can not only improve the reliability of the distribution equipment route and reduce the hot and working voltage damage of the transmission line, but also from the perspective of economic development Very beneficial.
The survey results show that the cost of increasing the cross-section of the transmission line can be compensated by the saved utility bills within one to two years, and long-term benefits can then be obtained thereafter. Copper and transportation tools A car generally consumes about 23KG of copper, of which three-fifths are used for electrical circuits, and two-fifths are used for other equipment. The automobile industry is increasingly choosing parts made of fast-cutting copper. The automotive industry in the UK alone consumes about 40 million pounds of raw materials of this type C36000 each year.
The average copper consumption of producing an agricultural vehicle to transport a large tractor is about 29KG, the average copper consumption of engineering and construction transportation vehicles is 30 kg, and the average copper consumption of induction electric shovel trucks is 63KG. The world's largest electric shovel was used to reach 36.32 tons of copper. 2% of the net weight of the Boeing 747-200 jetliner is copper (about 4100KG), and the commonly used copper transmission line is 190 kilometers long. A diesel locomotive needs 5 tons of copper. The electric locomotives and trams in the electric engineering traction belt use 284KG to 4 tons of copper. The average value is 1044KG. The strategic nuclear submarine needs 91 copper for the tritium driving force.