How to choose wires and cables correctly
In order to obtain huge profits, counterfeit and low-quality wire and cable producers, regardless of the interests of consumers, mass-produce low-quality wire and cable products, disrupt the wire and cable market and harm the interests of users. Therefore, the correct selection of wires and cables is very important. What kind of products are in line with national standards?
First of all, there is the "CCC" certification mark. Since wire and cable products have a close relationship with the lives of consumers, their quality and safety directly affect the personal and property safety of consumers. Therefore, wire and cable products are national compulsory safety certification products. All manufacturers must obtain the "CCC" certification certified by the China Electrical Products Certification Committee, obtain the "CCC" certification mark, and have the "CCC" certification mark on the certificate or product.
Secondly, the packaging is exquisite. The packaging of wire and cable products is the same as other products. All large and medium-sized formal enterprises that produce products that meet the requirements of national standards pay attention to product packaging.
Third, the appearance of the product is smooth and round, and the color is even. Wire and cable companies whose products meet the requirements of national standards strictly control the purchase of raw materials, production equipment, and production processes in order to improve product quality and ensure that their products meet the requirements of national standards. Therefore, the appearance of the produced wire and cable products meets the standard requirements: smooth and round, uniform color. The appearance of counterfeit and inferior products is rough and dull. As for rubber insulated flexible cables, it is required to have a round appearance, tight sheath, insulation, and conductors that are not easy to peel off. The fake and inferior products have rough appearance, large ovality, and low insulation strength of the sheath, which can be torn off by hand. Fourth, the conductor is shiny, and the DC resistance and conductor structure size meet the requirements of national standards. Wire and cable products that meet the requirements of national standards, whether aluminum or copper conductors, are relatively bright and oil-free. Therefore, the DC resistance of the conductors fully meets the national standards, has good electrical conductivity and high safety.
Fifth, the length is accurate. Length is the main intuitive way to distinguish between products that meet the requirements of national standards and counterfeit and inferior products. The length of the wire and cable products that meet the requirements of the national standard meets the national standard of 100±0.5m (that is, the standard is 100 meters, and the allowable error is 0.5 meters), which protects the interests of consumers.
Sixth, the certificate is clearly marked. The wire and cable product conformity certificate that meets the requirements of the national standard is clearly printed. The "CCC" certification mark, trademark, model specification, rated voltage, length, inspection, manufacturing date, certification number, implementation standard, factory name, factory address, telephone, etc. are clearly printed. It is consistent with the product, and some companies have marked "Warning to the user" on the certificate so that consumers can purchase and install it correctly.