Why can’t High Voltage Cables be Buried Underground?

hv cable

The current underground cables are generally of lower voltage level, and the line transmission with high voltage level is often overhead, which is mainly due to cost and technical factors.​​ Ultra-high voltage power transmission refers to the use of 500kV-1000kV voltage level to transmit electric energy. If the 220 kV transmission index is 100%, the … Read more