The conductor of the power cord must have a certain degree of luster and moderate flexibility

First, recognize the certification mark. When purchasing, be sure to check whether there is a "CCC" certification mark on the certificate, whether the model specifications, rated voltage, length, manufacturing date, certification number, inspection, implementation standards, factory name, factory address, etc. are clear.

Second, focus on packaging. When purchasing, pay attention to the packaging must be exquisite, the printing must be clear, and the model specifications, factory name, factory address, etc. are complete.

Third, check the appearance of the product. When purchasing, pay attention to check the appearance to be smooth and round, with uniform color and good hand feeling. If it is a rubber-type power cord conductor, the sheath and insulation can be burned with cigarette butts, and the surface is completely undamaged.

Fourth, check the conductor of the power cord. The conductor of the power cord must have a certain degree of gloss and moderate flexibility, and the structure and size of the conductor of the power cord must meet the requirements of national standards.

Fifth, check the length. When purchasing, do not be greedy for cheap prices. When purchasing power cord conductors with 90m or 80m, or even without length marking, the length must meet the 100±0.5m standard.

At present, in the power cord conductor sales market, some manufacturers, in order to attract users and mislead consumers, ignore the national regulations and make products (especially plastic cords) 90 meters per circle, damaging consumers. Interest, disrupting the power cord conductor sales market. Why do these manufacturers sell their products as 90 meters? The reason is that it is 10 meters less, lowering the price, and misleading consumers. For example, a PVC insulated copper core plastic wire BV2.5㎜2 produced by a wire factory has a length of 90 meters printed on the certificate, and the actual length is 82 meters; the selling price of such a circle of BV2.5㎜2 is 50 yuan , Compared with the BV2.5㎜2 qualified products produced in accordance with the standard, the market price of a circle of 100 meters is 70-80 yuan, 20-30 yuan less. Violation of national standards, seriously harming the interests of consumers, and at the same time disrupting the sales market for power cord conductors.

This is a common misunderstanding of a considerable number of users and even some companies using power cord conductors. In order to save money and neglect safety, some users select low-quality power cord conductors with low prices, no guarantee of quality, and high potential for accidents. We know that due to the safety of the power cord conductor and other factors, the price of the power cord conductor cannot meet the requirements of some users. However, some self-employed private enterprises are unable to manufacture power cord conductors that meet the requirements of national standards in terms of material selection, production technology, and testing methods. Its safety will not be guaranteed. In addition, they are making a fuss about short feet and a few meters. Prices flood the market and cater to some users. Therefore, please do not covet the cheap power cord conductor.

The power line conductor is composed of four parts: power line conductor, insulation layer, shielding layer and protective layer.

(1) Power cord conductor

The conductor of the power cord is the conductive part of the conductor of the power cord. It is used to transmit electric energy and is the main part of the conductor of the power cord.

(2) Insulation layer

The insulating layer electrically isolates the power line conductor from the ground and the power line conductors of different phases from each other to ensure electric energy transmission. It is an indispensable part of the power line conductor structure.

(3) Shielding layer

The power line conductor of 15KV and above generally has a power line conductor shielding layer and an insulating shielding layer.

(4) Protective layer

The role of the protective layer is to protect the power cord conductors from the intrusion of external impurities and moisture, and to prevent external forces from directly damaging the power cable.