Wires have become an indispensable part of our lives. However, the quality of the wires on the market is uneven, and some wires even have safety risks. So, as ordinary consumers, how do we confirm that the purchased wires meet national standards? Below, this article will introduce you to some easy to understand ways to identify.

First, observe the appearance of the wire

First, we can observe the appearance of the wire to judge its quality. Generally speaking, wires that meet national standards have smooth appearance, uniform color, and no obvious scratches, burrs and other problems on the surface. At the same time, the insulation layer of the wire should have a certain thickness, and there can be no bubbles, cracks and other phenomena. If there are obvious defects in the appearance of the wire, it is likely to affect its safety performance and service life.

Wires generally have standard colors, generally: red, yellow, blue, brown, gray, black, yellow-green, if the wire color is seriously distorted, it does not meet the national standard.

Second, check the size of the wire

Secondly, we can identify the quality of the wire by checking its size. The national standard has strict provisions on the size of the wire, and different specifications of the wire should have the corresponding size. If the size of the wire does not meet the standard requirements, it is likely to cause the wire to be too thin or too thick, which affects its ability to carry current and service life. Therefore, when purchasing wire, it should be carefully checked whether its size meets the relevant standard requirements.

The conductor core wire of the power cord that meets the national standard is basically oxygen-free copper, and the color is generally purple. The power line using oxygen-free copper as conductor has low resistance, stable transmission, oxidation resistance and long life. The conductor materials that do not meet the standard are mostly recycled copper or copper-clad aluminum, and the color is generally purplish black, yellow, and white. This kind of copper has many impurities, high resistance, and little effect on oxidation resistance; However, copper clad aluminum has high resistance and low oxidation resistance. These are easily dangerous for daily use and have a low service life

Third, check the certification mark of the wire

We need to check the certificate of the cable, the wire must have a certificate, and the wire above the parameters corresponding to the certificate includes: quality system certification, factory name, factory address, production date. Some parameters printed on the wire include: trademark, specification, voltage, meter scale, etc. If it does not correspond or there is no parameter on the wire, the wire does not meet the national standard.

Fourth, check the brand of the wire

We can judge the quality of the wire by checking its brand and reputation. In general, the brand of wire is more guaranteed in quality, and has a good reputation in the market. Therefore, when buying wire, you can choose to buy a brand of wire, or listen to the evaluation and advice of other consumers to choose the right wire.

In short, as ordinary consumers, we can judge whether it meets national standards by observing the appearance of the wire, checking the size of the wire, certification mark, brand and reputation. When purchasing wires, be sure to carefully check whether the indicators meet the requirements to ensure the safety and reliability of use. At the same time, we should also pay attention not to buy cheap inferior wire, so as not to bring safety risks to themselves.

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable.