Whether It Is A Quality Cable

To see. See if there is a quality system certificate; See whether the certificate of conformity is standardized; Look at whether there is a factory name, factory address, inspection seal, and production date; See if the wire is printed with trademarks, specifications, voltage, etc. Also look at the cross-section of the copper core of the wire, the superior copper color is bright and soft, otherwise it is inferior.

To try. It can take a wire head to be repeatedly bent by hand, and everything that feels soft, has good fatigue strength, plastic or rubber feels elastic and there is no crack on the wire insulator is an excellent product.

Weigh the weight. Good quality wires are generally within the specified weight range. For example, the commonly used plastic insulated single-stranded copper core wire with a cross-sectional area of 1.5mm2 weighs 1.8~1.9kg per 100 meters; the plastic insulated single-stranded copper core wire of 2.5mm2 weighs 3~3.1kg per 100 meters; the weight of poor quality wires is insufficient, either the length is not enough, or the wire copper core impurities are too much.

Look at copper. Qualified copper core wire copper core should be purple red, shiny, soft to the touch. The fake copper core wire copper core is purple black, yellowish or white, with many impurities, poor mechanical strength, poor toughness, and will break with a little force, and there are often broken wires in the wire. During the inspection, you only need to peel off one end of the wire by 2cm, and then rub a little on the copper core with a white paper, if there is a black substance on the white paper, it means that there are more impurities in the copper core. In addition, the shoddy wire insulation looks very thick, but in fact most of it is made of recycled plastic, and over time, the insulation layer will age and leak electricity.

Look at the price. Due to the low production cost of counterfeit and shoddy wires, traders often sell them at low prices under the guise of low prices and good quality, so that people are deceived.