The Material of the RVV Cable’s Core

The number of core wires of the RVV power cord is variable, two or more, and there is a PVC sheath on the outside. There is no special requirement for the arrangement between the core wires, and there are two cores, three cores, four cores, and five cores.

RVV inner conductor is composed of multi-strand copper core, the material of power cord is oxygen-free copper, all copper, copper-clad aluminum. The copper-clad aluminum is very soft, the texture of cooper and oxygen-free copper is hard. These three materials are easily distinguishable.

In the process of using the power cord, the resistance of the conductor does not meet the requirements, which will cause the power cord to overheat in operation. The resistance of the copper clad aluminum material and the all copper resistance are higher than that of the oxygen free copper material, and the copper coated aluminum power cord is easy to be oxidized. The service life is not long. The copper has a longer service life and a shorter transmission distance. The oxygen-free copper power cord has small resistance and good transmission effect, and is a power cord commonly used in engineering. Analysis of Shengzhou wire and cable in the market, RVV power cord is basically black or white extruded power cord, which is made by extruding die directly. The filler is directly filled with vacuum of PVC material, compact structure, round appearance, thick outer sheath, wear resistance, tension and compression. The RVV oxygen-free copper power cord can be used outdoors or indoors with a distance of more than 50 meters, and can operate over 4 cameras. Shengzhou wire and cable reminds everyone that the monitoring system is generally connected to a voltage of 12V to work. When the current passes through the conductor, it will be subjected to a certain resistance, resulting in loss of the voltage transmitted by the RVV power line. The resistance of the oxygen-free copper conductor is relatively small, the line voltage drop is not large, it will not affect the normal work, and will not easily cause a fire.