How to Judge the Quality of Cables?

Nowadays, there are many cable brands in the market, so the products are more or less of varying qualities.

It's impossible for each of us to be proficient in everything. Sometimes when we go shopping, we hope to find an expert to go with us. However, our social circle is limited, and we can't always find such a person. Sometimes we have to try on our own. It can also be blamed on the intense social competition, which has led to the influx of a lot of counterfeit and inferior products. So how can we avoid being deceived? For example, when we buy wires and cables, Ningbo Paidu Industry and Trade Co., Ltd. is going to introduce two very simple and effective methods to help you distinguish the quality of cables today.

1. Check the outer sheath material of the wire

The outer sheath of wires with standard temperature resistance of 80 degrees Celsius and 105 degrees Celsius generally uses semi-rigid PVC sheaths. The surface is smooth, moderately soft and hard, has toughness, is resistant to bending, and has a faint pungent smell. On the contrary, for the outer sheath of wires made of secondary or tertiary materials, the cable surface is grayish and has bubbles, has poor toughness and is not resistant to bending, and the pungent smell of the outer sheath is relatively strong.

2. Check the color and texture of the conductor copper wires

Standard conductor copper wires generally use multiple strands of bare copper or multiple strands of tinned copper wires. The surface is bright in color, showing a bright copper color, has good toughness and is not easy to break, and the conductor resistance is small. For example, for a sheath wire with a specification of 2*0.5 square millimeters, the resistance per kilometer is not greater than 39 ohms. However, the conductors made of copper-clad aluminum have a grayish color and are easy to break. The conductors made of copper-clad steel have a golden flashy yellow color, have a relatively high toughness, and have a large conductor resistance. The conductors made of copper-clad mud have a grayish color, poor toughness, are easy to break, and the conductor resistance is unstable.