Home appliances can not be separated from the wires, especially the old houses, although the wire is small, “responsibility†is significant. A lot of fires are caused by the aging of the power lines, their unreasonable configuration, or the poor quality of the wires used. Therefore, consumers must polish their eyes when buying electric wires, carefully identify them and prevent them from occurring.
Sunshine Hardware (Panda wire)
The state has explicitly stated that copper conductors should be used in new houses. However, copper conductors are also used, and inferior copper conductors are also used. The copper core uses recycled copper and contains many impurities. Some poor-quality copper conductors are even less conductive than iron wires, which can easily cause electrical accidents. At present, there are many kinds of wires on the market, many specifications, and prices are chaotic. It is very difficult for consumers to choose. In terms of the prices of 2.5 square millimetres and 4 square millimetres of two kinds of copper wires that are commonly used in home decoration, the price of one line of the same specification may vary by 20% to 30% because of different manufacturers. As for the quality, whether the length is up to standard, consumers are even more difficult to determine.
First, first look at the volume of wire packaging cards, whether there is the Chinese Great Wall Certification and production license number; see if there is a quality system certification; see whether the certificate is standardized; see if the name of the factory, Site address, inspection seal, production date; see if there are trademarks, specifications, and voltages printed on the wires. It also depends on the cross-section of the copper core of the wire. The superior product has a bright, soft color and a reddish yellow color in the copper core, indicating that the quality of the copper used is better, and the yellow white is a reflection of the low quality copper.
Second, it is advisable that a wire head be repeatedly bent by hand, and that any product that has soft hand feeling, good fatigue resistance, plastic or rubber feel elasticity, and no crack on the wire insulation body is excellent. The outer plastic skin of the wire should be bright in color and fine in texture. There should be no open flame when lit with a lighter.
Third, intercept a section of insulation to see if the core is in the middle of the insulation. Non-centered is due to the fact that the process is not high and the eccentricity phenomenon is caused. If the power is small, it can be safe when used. Once the power is used, the thinner side may be broken down by the current.
Fourth, we must look at the length and thickness of the core has not made hands and feet. The relevant standards stipulate that the error of the length of the wire cannot exceed 5%, and the diameter of the cross section cannot exceed 0.02%. However, there are a large number of short and short lengths on the market, and frauds are made on the cross section (if the cross section is 2.5 mm 2 ). Lines, in fact, only 2 square millimeters thick) phenomenon.
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