Difference between control cable and signal cables
Different characteristics
Control cable:
Insulation electrical strength: 1min between conductors 1kv without breakdown of conductor and shield 1min 3kv without breakdown;
insulation resistance: each core wire is grounded to the rest of the cores, control cable is greater than 10000MΩ.km, HYAT cable is greater than 3000MΩ .km.
Signal cable: Generally, the signal transmitted by the signal cable is very small. In order to avoid signal interference, the signal cable has a shielding layer on the outside. The shielding layer needs to be grounded, and external interference signals can be introduced into the ground by this layer to prevent interference signals from entering the inner layer of the conductor and reduce the loss of transmitted signals.
Use differently
Control cable: suitable for industrial and mining enterprises, energy and transportation departments, for the control and protection of AC rated voltage below 450/750 volts, PVC insulated and PVC sheathed control cables.
Signal cable: The sensor signal cable is used for signal transmission of various sensors and instruments; the sensor signal cable uses silver-plated conductors and a multi-core structure to ensure that the resistance between each core is highly consistent, which can accurately transmit weak power signals. To hundreds of meters away.
Different materials
Control cable: copper core, nominal cross section 2.5mm2 and below, 2 to 61 cores; 4 to 6mm2, 2 to 14 cores; 10mm2, 2 to 10 cores. Control cable working temperature: rubber insulation is 65 ° C, PVC insulation is 70 ° C and 105 ° C. Control cables used in computer systems generally use polyvinyl chloride, polyethylene, cross-linked polyethylene, and fluoroplastic insulation products.
Signal cables: On the one hand, sophisticated metal materials must successfully lead to interference signals. The extremely thin metal wires must have sufficient resistance to bending to prevent metal debris from affecting other electrical equipment.
