How to visually identify the quality of wire and cable

The quality of wire and cable is not easy to determine intuitively. Because some of the characteristics of the cable, not all can be learned from the observation of the cable. Generally speaking, from the intuitive judgment of the quality of high temperature resistant special wire and cable, should start from the following aspects. 1. conductor: the surface should be round and smooth, continuous and uniform plating; conductor surface should not have triangular mouth, burrs, cracks, kinks, folding, inclusions, scars, pits, mechanical damage, corrosion spots and other defects; color and lustre uniformity, bright, there should be no traces of over-oxidation; conductor cross-section of the size of the adequate, not loss of the square. 2. insulation and jacketing: the surface of the smooth and rounded, glossy and even, there should be no visually visible pimples, bubbles Insulation and sheath: the surface is smooth and rounded with even luster, no visually visible pimples, bubbles, burnt material, etc.; the thickness of insulation (sheath) is even, no core deviation; no mechanical damage and flattening phenomenon; there should be no adhesion between the layers of materials.3. Other: the metal shielding layer should be continuous, overlapping, tightly wound package, no sharp corners, curled edges, omissions, etc.; the pitch of the cable is appropriate and even; the filler is full, and the cable is rounded; the wrapping should overlap, and there should be no curled edges, omissions, etc.; the cable should be rounded and smooth in shape, no squashed, Snake shape bending and other phenomena; the cable should not have traces of moisture inside.-4、About Evergrande Electronic Products Network platform related to the introduction and sales of products briefly: Evergrande Electronic Products Network - a professional agent / production / sales of a variety of {connectors | wiring harness | wire and cable products }; if you have a related [connectors | wiring harness | wire and cable products] purchasing / sourcing needs or would like to buy / to understand what connectors | harness | wire and cable products we can provide solutions, please contact the following Division I business personnel; If you have related [connectors | wire harness | wire and cable products] sales / resources and promotion needs, please click on the "¡¡ Business Cooperation ←" with the person to discuss!