What are the structural characteristics of communication cables?

Communication cables and electronic wires are completely opposite of the structure of the characteristics: 1. Communication cable insulation structure most of the air and dielectric combination of insulation. Such as air and paper combination, air and plastic combination. From the dielectric properties, the relative dielectric coefficient of air ε = 1, is the most ideal insulator, but because it can not fix the position of each component within the cable, so can not be used alone. The use of air and other materials (paper or plastic, etc.) constitute a combination of insulation, not only to fix the position of the components within the cable, but also to get a relatively small dielectric coefficient. 2. In order to reduce the interference within the cable, to ensure the stability of the structure, and to achieve a certain level of performance requirements, symmetrical cable insulation cores are to be grouped first stranded, and coaxial cable coaxial pairs of concentric and shielded structure of the inner and outer conductors. 3. In order to reduce the interference of external electromagnetic fields, generally have a shielding layer. 4. The number of insulated cores is large, especially in the city cable, can be as large as thousands to tens of thousands. 5. In order to meet the various requirements of the communication network, often using a comprehensive core structure. 6. As the axial integrated communication cable both coaxial pairs, and high and low frequency line group and signal core.-6, on the BBC Electronic Products Network platform related to the introduction and sales of products brief: BBC 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 product solutions that we can provide, please contact our Division below! Business personnel; If you have related [connectors | harness | wire and cable products] sales / resources and promotion needs, please click on the "→ Business Cooperation ←" and special people to discuss!