A highly efficient transmission line for electrical energy. For the ground insulation of high-voltage transmission and distribution network overhead lines, it is generally done by air. The previous distribution lines (below 10kV)
Due to reduced reliability, currently, overhead lines below 10kV generally use insulated conductors (i.e. the outer layer of the conductor is wrapped with insulation), which is known as
00 indicates the voltage, model, material, core cross-sectional area, and length of the overhead line
