Low-voltage power cable is a type of power cable. It is suitable for fixed installation on transmission and distribution lines with AC 50Hz and rated voltage 3kv and below for transmitting electric energy. Implementation standard: GB/T 12706-2008. Advantages of low-voltage power cables: low possibility of electric shock and safe to use. It is less affected by climate conditions and surrounding environment, has stable transmission performance and high reliability. The distributed capacitance is large, the maintenance workload is small, and it has more favorable conditions for the development of ultra-high voltage and large capacity, such as low temperature, superconducting power cables, etc. Scope of application of low-voltage power cables: buried in the soil or laid indoors, in trenches, and tunnels. The insulation distance between lines is small, no poles and towers are needed, and it occupies a small area and basically does not occupy any floor space.