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The use of aluminum alloy cable to reduce volatility copper troubles

Information Source:Henan Huadong Cable Co., Ltd Release date:2014-04-30

Copper is the most ancient metal human use, has made important contribution to the development of human civilization. In modern times, with the copper content is the barometer of a national and global economic development. More than half a century, the two copper resources crisis in the world, is the first time after the Second World War, a serious shortage of copper resources in developed countries; the second is to enter after twenty-first Century, rapid development of the world economy, with the copper content increases rapidly, causing global copper resources are extremely scarce, prices are soaring and severe fluctuation.

2000-2010 global copper consumption

According to the foreign news review, China rapid economic development is one of the reasons why the world copper consumption surge. In 1999, China has a population of 1130000000, the gross domestic product (GDP) for $388000000000; the same year, with a population of 27790000, Canada's GDP for $583000000000. 20 years later in 2010, China GDP soared to $5.76, is 15 times that of 1999, considered hitherto unknown in human history, the rate of economic development. In 2012, Chinese wire and cable industry with copper volume of 4850000 tons.

With the development of economy, to 2010, copper consumption in the world China accounted for about 40% of the total supply, produced tremendous pressure on prices uplink. 2002-2012, the London Stock Exchange (LME) copper prices rose nearly 6 times. Other developing countries such as India and Brazil, also had a great impetus to the rise in the price of copper.

In the face of global high copper prices and volatility, the cable industry has taken two main resource measures, one is to adopt the aluminum and aluminum alloy conductors, two is the use of copper clad aluminum conductor.

In 2012, Chinese wire and cable industry aluminum volume of about 2500000 tons, are the largest amount of overhead conductors, accounts for about 90% of total amounts. Although aluminum conductor power and communication cables have been used, but the amount is still less than the copper core cable. In the overhead wire products, aluminum alloy wire was slowly increased year by year. Academician Huang Chongqi pointed out: Chinese aluminium and aluminium alloy conductors in power cables and electrical equipment on the cable consumption is still very low, in 2011 the proportion accounted for only 10% and 1.4% respectively; the 60-70 in the last century, in the "generation of copper to aluminum" under the policy guidance, using the ratio of aluminum core power cables and electrical equipment the cable was once as high as 40%; later 1980's's reform and open, the use ratio of aluminium core cables to the current sharp decline, even less than 10% [12].

In the past 30 years, China power cables and electrical equipment cable aluminum production decreases sharply, the reason is various, is the main user of aluminum cable performance one-sided understanding of marketing department, copper aluminium core cable misleading to the electrical fire safety publicity, as well as the wire and cable industry concerned only with overhead wires and R & D ignore the power cable and other products.

Aluminum alloy conductor cable that in Europe and the United States has been used for 40 years old products, as a new product development in Chinese put up a pageantry application, or the last few years inspired by foreign cable companies to carry out the. As for copper clad aluminium power cable, although there are many domestic manufacturers, there are some power sector, but have not been included in the product standard edge.

The ratio of the electric wire and cable industry in 2011 Chinese electrical aluminum and aluminum alloy


Conductor of category The use of occasions Using proportion %
Electrical aluminum Overhead line 92.7
Power cable 10
Winding wires 2.7
Aluminum alloy Overhead line 1.4
Power cable 1.4
Winding wires 4.5

Aluminum alloy conductor cable that in Europe and the United States has been used for 40 years old products, as a new product development in Chinese put up a pageantry application, or the last few years inspired by foreign cable companies to carry out the. As for copper clad aluminium power cable, although there are many domestic manufacturers, there are some power sector, but have not been included in the product standard edge.

Foreign small specifications for the construction of wire to the large size of HV and EHV power cables, in the use of aluminum or aluminum alloy conductor, and Chinese no situation actively pursuing technology of aluminum core cable product progress, but also to "aluminium core cable not reliable" and "fire" as an excuse "demoted aluminum Yang copper", promotion checking the aluminium core cable. This idea should be in line with international standards.

If careful application of aluminum alloy electric cables and building cable, will undoubtedly reduce the pressure of demand for copper resources, but also can reduce the high copper prices and fluctuations bring to cable enterprise risk and trouble.

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