As the industry grows, the demand for wire and cable products is on the rise, attracting many manufacturers to see the business opportunity. This has led to an increasing number of wire and cable manufacturers, with a wider variety of products available. However, how do we choose high-quality wire and cable products? Or, how can we differentiate between "national standard" and "non-standard" wire and cable? Today, our editor shares five tips:

Inspect the quality system certification for wire and cable products, ensure the compliance of the qualification certificate, check for the factory name, address, inspection stamp, and production date. Look for trademarks, specifications, and voltage printed on the wire. Additionally, examine the cross-section of the copper core; top-grade copper should have a bright, soft color, otherwise, it's considered substandard.

In the second trial, take an end of a wire and bend it repeatedly by hand. A wire that feels soft, has good fatigue resistance, exhibits a large elastic feel in plastic or rubber, and has no cracks on the insulation is considered superior quality.

Three weighings. High-quality electrical wires and cables typically fall within the specified weight range per 100 meters. For instance, a 1.5mm² plastic insulated single-core copper wire, the weight per 100 meters is 1.8-1.9kg; a 2.5mm² plastic insulated single-core copper wire, the weight per 100 meters is 3-3.1kg; and a 4.0mm² plastic insulated single-core copper wire, the weight per 100 meters is 4.4-4.6kg, etc. Poor-quality wires are underweight, either due to insufficient length or excessive impurities in the copper core.

Beware of Low Prices. Due to the low production costs of counterfeit and substandard wires, vendors often sell them at a low price under the guise of "quality and affordability," leading consumers to be deceived. Therefore, be cautious when purchasing, and don't let the vendors' claims of "quality at a low price" cloud your judgment and lead you to be swindled.

Five inspections for copper quality. Genuine copper-core wires should be purplish-red, glossy, and soft to the touch. Counterfeit copper-core wires have a purplish-black color, are slightly yellow or white, contain more impurities, have poor mechanical strength, and are not very ductile, breaking easily with slight force. Additionally, there is often a phenomenon of broken wires inside the wire. When inspecting, simply strip a section of the wire and rub the copper core with a piece of white paper. If the white paper shows black substances, it indicates that there are many impurities in the copper core, and it can be identified as "non-standard" wire and cable.