How to choose wire and cable
Due to the uneven enterprise scale and production technology capability, coupled with the fierce market competition, the quality of wire and cable products in the market is uneven. The unqualified quality of wire and cable products may lead to electric shock casualties and fire accidents. Therefore, the quality of the wire and cable should be considered when purchasing and using it.
Due to the uneven quality of wires and cables currently on the market, consumers should try to choose a manufacturer with a certain reputation. Such a manufacturer has a high level of technical force and manufacturing technology, and has a good reputation and high quality assurance. .
2. Consumers should buy Electrical Wires and electric cable with the "CCC" logo. Because the products that have passed the compulsory certification, their raw materials and finished products have undergone the necessary inspections, and the quality is relatively guaranteed.
3. When consumers buy wires and cables, they should check whether the information on the outer packaging and the certificate of conformity is complete, especially the wire and cable manufacturer's name, address, model specifications, voltage level, etc. In addition to checking the content on the outer packaging and the certificate of conformity, you should also check whether the printed marks on the wire and cable body have the manufacturer's name, model and voltage level, and you can also ask the merchant to check the relevant inspection reports and certificates.
4. The appearance of the wire should be smooth and flat, the insulation and sheath layers have no obvious defects, no pores, and no roughness, the logo printing is clear, and there is no greasy feeling when touching the wire by hand. If possible, check the cross section of the wire. The insulation and sheath should have a certain thickness without serious eccentricity. The surface of copper conductor should not be oxidized to black, and the surface of aluminum conductor should not be oxidized to white. Tear the insulation or sheath by hand, it should have certain toughness and flexibility, and it is not easy to break.
