Do you know how to recognize quality wire?

1. Look at the label: regular manufacturers of wire certificate of conformity should include: 3C certification mark, certification number, model specifications, implementation standards. The counterfeit product label is often not clear or printed content is incomplete. 2. Look at the surface: the regular wire of the plastic skin is soft and smooth, uniform color. On its surface, should also be printed on the certificate of conformity of the product on the contents of several, the handwriting must be clear, not easy to erase. 3. test bending: take a wire head with a hand repeatedly bending, where the feel soft, good fatigue strength, plastic or rubber feel elasticity and wire insulator without cracks on the top grade. 4. tearing the insulation: high-quality insulation materials have a certain degree of mechanical strength and flexibility, easily tear. Inferior quality wire can be torn or pinched down by hand a piece. 5. look at the burning: quality wire insulation has a certain degree of flame retardancy. Peel off a section of insulation, with a lighter for ignition, away from the open flame can continue to spontaneous combustion is inferior line. 6. check the thickness: intercept a section of insulation, look at the cross-section of the insulation layer is visible to the naked eye air holes, whether the core is located in the center of the insulation layer. Not centered because the process is not high and caused by the phenomenon of bias core, there are air holes that the insulation material is unqualified. 7. look at the copper wire: the color of high-quality copper wire is bright red, while the poor quality of the copper core line for the purple basalt, black, yellow or white, hardness, impurities, poor mechanical strength, toughness. 8. look at the price: due to the low cost of production of counterfeit and shoddy wires, therefore, the vendor in the sale of goods, often inexpensive and good quality as a The front of low-priced sales, so that people are fooled.

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