How to Distinguish the Quality of Wires and Cables?

Ⅰ. The importance of emphasizing quality of wire and cable products

In recent years, news about counterfeit and inferior cable products has emerged one after another. Some unscrupulous manufacturers in the cable industry sacrifice product quality in pursuit of profit, making the cable market a mixed bag and increasing the difficult for consumers to choose. As for whether the quality of product is good or not and whether its length is up to the standard or not, which are even more difficult for consumers to judge. This is also a wake-up call to the cable industry that should improve the quality and efficiency, which is still a long way to go.

Ⅱ. How to distinguish the quality of wire and cable products?

1. Pay attention to the packaging

When purchasing, pay attention that the packaging must be exquisite, the printing must be clear, and the model specifications, the names of wire and cable suppliers, factory address, etc., must be complete. Counterfeit and inferior wires and cables are often "three-no products", but they also have ambiguous origins and other signs.

2. Check the appearance

When purchasing, pay attention to the appearance, it should be smooth and round with uniform color and nice feel. If it is rubber wire and cable, the sheath and insulation can be burnt with cigarette butts, while the surface is completely undamaged.

3. Check the conductor

The conductor must have a certain sheen as well as moderate flexibility, and the size must meet the standard requirements. Regarding the cross-section of the copper core of the wire and cable, the superior copper is bright and soft in color, otherwise it is defective product.

4. Check the length

When purchasing the cable, do not yield to the temptation of cheap to choose the cable with only 90m or 80m or even without length marking. The length of cables must meet the cable standard requirements of 100±0.5m.

5. Check the PVC sheat

If the regular "unevenness" of the compressed braided net can be seen on the surface, it indicates that the processing technology is good and there is no relative sliding, which is the standard cable. If the appearance is smooth, the "unevenness" of the compressed braided net is not visible and the sheath has a loose feeling when pinched it by hand, which is a bad cable.

6. Check the braided net of shielding layer

Whether the number of braiding is sufficient for braiding the copper wire, checking the solderability and scraping the tinned copper wire to see if it is copper wire inside, because the hardness of the aluminum-magnesium alloy wire is obviously greater than that of the copper wire. If the braided net is sparse and distributed unevenly, not tightly wrapped with the insulating layer, etc., it is a bad cable.