Wire is related to the life and property safety of thousands of households and almost all industries can operate normally special commodities, the use of a very wide range, especially in the temporary line and home decoration indoor line use is very large, if the use of fake and shoddy wire and cable, light may cause short circuit, electric shock, heavy may cause fire, resulting in casualties. This is why we refuse to use poor quality cables. Next, Tianxing cable will tell you how to identify fake wire.

What is fake wire and cable?



1. The cable length is insufficient

The main means used by bad manufacturers is to make an issue of the length of wire and cable, the most typical is the cloth wire packaged in rolls, which is stipulated in the national standard of 100 meters per roll, the measurement error is not more than 0.5%, that is, the length of each roll of wire is 100±0.5 meters, and many manufacturers blatantly mark 100±20 meters on the qualified card. Its actual length is only about 80 meters.

2. Resistance value does not meet the national standard

The temperature of the wire with excessive resistance may be too high under the same current, thus accelerating the aging of the outer insulation layer, resulting in short circuit and fire; And because the resistance exceeds the standard, it will greatly increase the energy consumption of the transmission process and increase the cost of electricity.

3. Poor materials

One is the idea of copper conductors, copper conductors account for 80% of the cost of wires, and bad manufacturers reduce the quality of copper. Using much cheaper impurity copper, recycled copper, and even local copper smelting, the copper content is extremely unstable, resulting in a large increase in the resistivity of the copper conductor. The second is to reduce the amount of copper and reduce the actual cross-sectional area of the copper core. The direct consequence of these two practices is that the wire overheats during use, damages the insulating layer plastic, and causes a short circuit and causes a fire.

The second is to move on the plastic used in the insulation layer, the same degradation as copper, the price difference between recycled insulation material and qualified PVC plastic powder is nearly 2000 yuan per ton, but the recycled insulation material has high impurity content, low mechanical strength, aging resistance and electrical insulation performance decline, which will directly lead to wire leakage phenomenon.

How to identify fake wire and cable?



First of all, look at the packaging of the product, the plastic skin of the regular wire is soft and smooth, and the color is uniform. On its surface, it should also be printed with a clear production date, as if there is a logo and production license number of the China Electrical Products Certification Committee on the package, to see whether there is a quality management system certificate; See whether the certificate is standard; See whether there is a factory name, factory address, inspection seal, production date; See if the wire is printed with trademarks, specifications, voltage, etc... At the same time, the writing must be clear and not easily erased.
Then see whether the outer plastic skin of the wire is bright in color and fine in texture, it is advisable to bend a wire head repeatedly by hand, any soft feel, good fatigue strength, plastic or rubber feel elastic and no crack on the wire insulator is genuine.

Qingdao Tianxing Cable Co., Ltd. is a technology enterprise specializing in the production of wire and cable in Shandong Province, with more than 150 sets of domestic excellent cable production equipment and testing equipment, excellent production technology, modern testing equipment, to ensure stable product quality and timely supply. The company's main products are power cable, mineral cable, high life wire and cable, radiation crosslinked cable, control cable, computer cable, photovoltaic cable, communication cable, data cable, low smoke halogen free cable, flame retardant series wire and cable.