Copper Core Flame-Retardant Communication Computer Network Wires and Cables

Product DescriptionComputer cables belong to electrical equipment cables. This cable is suitable for electronic computers and automation instruments with a rated voltage of 500V or less that have high requirements for anti-interference. According to different environments and equipment usage requirements, cable insulation can be made of polyethylene, polyvinyl chloride, cross-linked polyethylene, fluoroplastics, silicone rubber, and other materials.Minimum bending radius: For unarmored structures, it should not be less than 6 times the outer diameter of the cable, and for armored or copper tape shielded structures, it should not be less than 12 times the outer diameter of the cable. The insulation resistance shall comply with the following requirements after stable charging with a DC 500V voltage test at 20 ºC for 1 min: there shall be no open circuit between each pair of shields and between the pair shield and the total shield. The cable core and core, as well as between the core and the shield or other metal layers, shall withstand 50 Hz, and the AC voltage shall be 2000 V/1 min or 1500 V/5 min without breakdown. Polyethylene has high insulation resistance, good voltage resistance, low dielectric coefficient, and low impact of dielectric loss temperature and frequency variation. It not only meets the requirements of transmission performance, but also ensures the service life of the cable. In order to reduce mutual crosstalk and external interference between loops, cables need to be shielded. Shielding materials include tinned or non tinned copper wire, copper tape, copper plastic composite tape, aluminum plastic composite tape, etc. The metal tape is produced by wrapping, and the coverage rate should generally not be less than 15%. However, specific standards have special provisions, such as the provisions of TICW/06 that the coverage rate of shielding metal tape should not be less than 25%; The metal wire shall be produced by weaving, and the weaving coverage rate shall not be less than 80%. If there are high requirements for anti-interference, the coverage rate may not be less than 90%. The shielding requirements for cables are based on different occasions: sub shielding (only for twisted pairs, and each twisted pair has a shielding), total shielding (only for cables with a layer of total shielding after the cable core is assembled), and sub shielding+total shielding (both structures are included). According to the higher requirements of users and applications, the overall shielding structure can adopt a composite shielding method, which includes two layers of shielding, consisting of metal tape wrapped and wire woven. 1. Cable usage characteristics:The rated voltage Uo/U is 450/750V; The maximum working temperature of the conductor is 70 ºC; The cable can be fixed and laid at an ambient temperature of -40 ºC to 50 ºC The ambient temperature during installation and laying should not be lower than 0 ºC; The minimum bending radius of copper tape shielded cables is 10 times the outer diameter of the cable; other The minimum bending radius of shielded cables is 6 times the outer diameter of the cable. 2. Main technical performance of cables:Insulation resistance: not less than 5000 M Ω · km at 20 ºC; Working capacitance: not greater than 90nF/km; Capacitance imbalance: not greater than 1nF/km; Voltage test: AC voltage 2000V for 5 minutes without breakdown. 4. Specification range:Cable core pairs 1-19 pairs; Nominal cross-section of conductor 0.75, 1.0, 1.5, 2.5mm2   Detailed Photos   Product Parameters modelCable nameDJYVPCopper core polyethylene insulated, total shield PVC sheathed electronic computer cableDJYPVCopper core polyethylene insulated and group shielded PVC sheathed computer cableDJYPVPCopper core polyethylene insulated, group shielded, total shielded, PVC sheathed electronic computer cableDJYVPRCopper core polyethylene insulated, total shield PVC sheathed flexible computer cableDJVVPCopper core PVC insulated and overall shielded PVC sheathed computer cableDJVPVCopper core PVC insulated and group shielded PVC sheathed computer cableDJVPVPCopper core PVC insulated, group shielded, total shielded PVC sheathed electronic computer cableDJVVPRCopper core PVC insulated and overall shielded PVC sheathed flexible cables for electronic computersDJYPVRCopper core polyethylene insulated, group shielded, PVC sheathed flexible computer cableDJYPVPRCopper core polyethylene insulated, group shielded, total shielded, PVC sheathed flexible computer cableDJYP2VCopper core polyethylene insulated, copper tape group shielded PVC sheathed electronic computer cableDJYP2VP2Copper core polyethylene insulated, copper tape group shielded, copper tape overall shielded, PVC sheathed electronic computer cableDJVPVRCopper core PVC insulated, group shielded, PVC sheathed flexible cables for electronic computersDJVPVPRCopper core PVC insulated, group shielding, total shielding, PVC sheathed flexible computer cableDJVP2VCopper c