Talking about the Classification and Use of Communication Cables

Engaged in the design, construction and maintenance of communication cable engineering, we must first have a clear and accurate understanding of communication cable products. Classification of all plastic cables 1. According to the type of cable structure - non-filled and filled type. 2. According to wire material points - copper wire and aluminum wire; 3. According to core insulation structure - solid insulation, foam insulation, foam / solid skin insulation, 4. According to the stranding method of split points - twisted and star-stranded, 5. According to the core insulation color - full-chromatography and general chromatography; 6. According to the cable core structure - concentric type (straight stranded), unit type, bundle stranded, SZ stranded; 7. According to the shielding method, it is divided into single-layer coated aluminum belt shielding, multi-layer aluminum and steel metal belt composite shielding, and the shielding belt is divided into wrapping and vertical packing. 8. According to the sheath points - single plastic sheath, double plastic sheath, integrated sheath, adhesive sheath, sealed metal / plastic sheath and special sheath; 9. According to the outer cover - single, double steel armored and steel armored plastic cover; 10. According to the use of points - the transmission of analog signals and transmission of digital signals; 11. According to the way of laying - overhead, pipelines, direct burial, underwater cables and so on. The model of the all-plastic cable The cable model is a code that identifies the cable specification program and use. In accordance with the purpose, core structure, wire material, insulation material, sheath material, outer sheath material, etc., respectively, with different Chinese Pinyin letters and numbers to represent, known as the cable model. According to the industry standard of the former Ministry of Posts and Telecommunications (YD2001-92), the representation and significance of the all-plastic cable model are as follows: 1. Category 2. Insulation 3. Shielding jacket 4. Features (derived) 5. Outer cover [example] HYA-100×2×0.5

HYA—100×2×0.5 stands for copper core, solid polyolefin insulation, plastic coated aluminum tape adhesive shielding, capacity 100 pairs, stranded type, and 0.5mm diameter all-in-one plastic cable in the city.