1, recognition has \ “CCC \” certification mark
Wire and cable products have a close relationship with the lives of the majority of consumers, its quality, safety or not directly affect the safety of the majority of consumers and property. Therefore, wire and cable products are mandatory national safety certification products, all manufacturers must obtain the certification of the China Electrical Products Certification Committee \ “CCC\” certification, to obtain \ “CCC\” certification mark, in the certificate of conformity or product has \ “CCC\” certification mark.
2、Insulation layer
National standards on the uniformity of the wire insulation layer to be thinner, the average thickness has clear data provisions. Regular wire insulation layer thickness is uniform, not partial core, and closely wrapped in the conductor.
3, wire core
The choice of pure copper raw materials produced and after strict drawing, annealing (softening), stranded wire core. Its surface should be bright, smooth, burr-free, stranded tight density flat, soft and tough, not easy to break. You can ask the merchant to cut a severed head to see the copper core material.
4、Product appearance smooth and round, uniform color and luster
In order to improve product quality and ensure that the products meet the requirements of national standards, in the purchase of raw materials, production equipment, production processes and other aspects of strict control. Therefore, the appearance of the production of wire and cable products meet the standard requirements: smooth and round, uniform color and luster.
5, the conductor has a glossy, DC resistance, conductor structure size and other requirements in line with national standards
Wire and cable products that meet the requirements of national standards, whether it is aluminum conductors, or copper conductors are relatively bright, oil-free, and thus the conductor DC resistance in full compliance with national standards, with good electrical conductivity, high security.
