How to distinguish cable materials?

The method for identifying cable material is as follows:

Observation identification: The model or code of the cable usually includes the identification of the conductor material. For example, letters with "L" usually represent aluminum core conductors, such as YJLV, VLV, etc., while those without "L" represent copper core conductors, such as YJV, VV, etc.

Check cross-section: High quality copper cores are usually made of oxygen free pure copper, with bright and soft colors. If the color of the copper core of the wire is dull, it may not be a high-quality product.

Perform bending test: Good wires have particularly good flexibility. You can take a wire head and repeatedly bend it. If there are no bending cracks on the insulator, it indicates that the material of the wire is good.

Weighing: Due to the different densities of copper and aluminum, cables with the same specifications typically have copper cores that are heavier than aluminum cores. Weighing can assist in determining the material of the cable.

In addition, when purchasing, it is necessary to check whether there is a quality system certification, whether the certificate of conformity is standardized, the factory name, address, inspection seal, and production date information. The completeness and standardization of this information are also important criteria for determining cable materials.

Overall, through the above methods, you can more accurately identify the material of the cable and ensure the selection of cable products that meet your needs. Meanwhile, understanding the basic structure and components of cables can also help make more informed decisions when making choices.