CCC certification mark

There must be a CCC certification mark on the wire. Wire and cable products are national compulsory safety certification products. All manufacturers must obtain the "CCC" certification from the China Electrical Products Certification Commission. Certification, obtain the "CCC" certification mark, and have the "CCC" certification mark on the certificate or product. Wires are related to electricity safety, and the quality of wires will affect the safety of our lives and property, so we must choose wire products with the CCC certification mark.

Appearance of wires

The appearance of a good wire product should be smooth, round, and uniform in color, so when purchasing, you should disassemble the wires and check to see what the appearance is. The color is not uniform. If there is discoloration, etc., it proves that the quality of the wire is not up to standard.

Product Certificate

The wire product certificate will include the "CCC" certification mark, trademark, model specifications, rated voltage, length, inspection, manufacturing date, implementation standards, and factory name , factory address, telephone number and other logos are clearly printed and consistent with the products. Only these are products produced by regular manufacturers. You should read them carefully when purchasing.

Wire conductor

The conductor of the wire should be shiny, and the DC resistance, conductor structure size, etc. should meet the requirements of national standards. For wire and cable products that meet the requirements of national standards, whether they are aluminum conductors or copper conductors, they are relatively bright and oil-free. Therefore, the DC resistance of the conductors fully complies with national standards, and they have good conductive properties and high safety. How to purchase wires

Wire specifications

Wire specifications are very important. Generally, BVV2×2.5 and BVV2×1.5 type wires should be used for household power cords. BVV is the national standard code for copper sheathed wire BVV2×2.5 and BVV2×1.5, which respectively represent 2 cores 2.5 square millimeters and 2 cores 1.5 square millimeters. Under normal circumstances, BVV2×2.5 is used as the main line and trunk line, and BVV2×1.5 is used as a single electrical branch line and switch line. The one-way air conditioning dedicated line uses BVV2×4 and is equipped with a dedicated ground wire.