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There are many types of copper core wire models, such as RVV, BVS, RVB and RV, etc. The wires will be indicated using English letters as well as numbers for ease of use and production. Need to use The scene is not the same, the specifications of the selected copper core wire, the model is also different, should be combined with the actual reality, to select the copper core wire.
PV cables, string to sink cables generally use PV cables PV1-F1*4mm2. PV cables have a simple structure and use polyolefin insulation materials with excellent heat, cold, oil and UV resistance, which can be used in harsh environmental conditions and have a certain mechanical strength.
Shielding is the isolation of metal between two regions of space to control electric and magnetic fields and electromagnetic waves from one region to the other area to another area of induction and radiation. Specifically, it is the shielding of components, circuits, assemblies, cables or The whole system of interference sources surrounded by shielding to prevent the spread of interference electromagnetic field to the outside: shielding the receiving circuit, equipment or system.
Power cables are cables used for transmission and distribution of electrical energy, power cables are commonly used in urban underground power grids, power station lead-in lines, industrial and mining enterprises internal power supply and over the river and sea underwater transmission lines. In the power lines, the proportion of cables is gradually increasing.
shielded cable and unshielded cable in the visual difference lies in the shielded cable has a metal mesh, film; unshielded cable is not. Shielded twisted pair cable (STP) of each pair of wires are wrapped in foil to reduce amplitude, and then wrapped again to provide double protection: Unshielded twisted pair (UTP) cable twists each pair of wires together, consisting of multiple cores and a plastic sheath.