Basic knowledge of high-voltage cables.
Among many power cables, one can transmit 10KV- The power cable between 35KV is the high-voltage cable, which plays a leading role in the main road of power transmission. Let's take a look at the types of high-voltage cables, high-voltage cables and types of cables, the main types of high voltage cables are YJV cables, VV cables, YJLV cables and VLV cables. YJV cable full name XLPE insulated PVC sheathed power cable (Copper core) VV cable full name PVC insulated PVC sheathed power cable (Copper core) YJLV cable full name XLPE insulated PVC sheathed aluminum core power cable VLV cable full name PVC insulated PVC sheathed aluminum core power cable, due to the excellent conductivity of copper conductor, more and more projects use copper-core power cables as the main roads of power supply systems, while aluminum-core power cables are less used, especially in higher-voltage power systems, the more copper core cables are selected. The structure of high-voltage cable, the components of high-voltage cable from inside to outside include: Conductor, insulation, inner sheath, filler (Armored), External insulation. Of course, armored high-voltage cables are mainly used for ground burial, which can resist high-strength oppression on the ground and prevent other external forces from being damaged. Specifications, models and uses of commonly used high voltage cables NA-YJV, NB- YJV, XLPE insulated PVC sheath A (B) Fire-resistant power cables can be laid in indoor, tunnels and pipelines that require fire resistance. NA-YJV22, NB- YJV22, XLPE insulated steel tape armored PVC sheath A (B) The fire-resistant power cable is suitable for buried laying when there is a requirement for fire resistance, and is not suitable for laying in the pipeline. NA-VV, NB- VV, PVC insulated PVC sheath A (B) Fire-resistant power cables can be laid in indoor, tunnels and pipelines that require fire resistance. NA-VV22, NB- VV22, PVC insulated steel tape armored PVC sheath A (B) Fire-resistant power cable UHV cable is a kind of power cable that appears with the continuous development of cable technology. UHV cable is generally used as the central link in large transmission systems, it belongs to a high-voltage cable with high technical content and is mainly used for long-distance power transmission. Xiao Bian hereby reminds you that although there are many benefits of high-voltage cables, we must also pay attention to the safety of electricity and try our best to choose reliable cable manufacturers for purchase.