The state has explicitly ordered the use of copper wire in new homes. But also the same copper wire, there are also poor quality copper wire, copper core selection of recycled copper, contains many impurities, and some poor quality copper wire conductive even worse than the wire, easily lead to electrical accidents. The market variety of wires, specifications, price chaos, the difficulty of consumer choice. Single family decoration commonly used 2.5 mm2 and 4 mm2 two kinds of copper wire prices, the same size of a plate, because the manufacturers are different, the price difference of 20% to 30%. As for the quality advantages and disadvantages, the length of compliance, consumers are more difficult to determine.
According to industry sources: The reason why the price difference between wires is huge, due to the different raw materials used in the production process. The main raw material for producing electric wire is electrolytic copper, insulating material and sheathing material. Electrolytic copper raw materials on the market at about 50,000 yuan per ton, while the recovery of copper per ton is only about 40,000 yuan; insulating materials and jackets of high-quality products in the price of 8,000 yuan per 10,000 yuan, while the defective products Only 4000 yuan per ton price ~ 5000 yuan, the difference is even more disproportionate. In addition, the lack of length, the insulation is not enough gel content is also an important reason for the price difference. The length of each line, superior product is 100 meters, and defective products is only about 90 meters; insulators containing plastic products accounted for 35% to 40%, while only 15% defective products. By contrast, consumers is not difficult to see the difference between the sale price of finished wire is the material due to tricky.