A high-voltage transmission line (HVTL) operates at voltages typically ranging from 115 kilovolts up to 800 kilovolts to minimize resistive power losses over long distances. These lines form the backbone of the electrical grid, utilizing heavy-duty steel towers and thick aluminum conductors reinforced with steel. The high voltage reduces the current required to deliver a given amount of power, which significantly cuts down on the heat generated in the cables.
Heard on the job
The storm knocked out a major HVTL, forcing the grid operator to reroute power and shed load in the northern sector.
Also heard as
- transmission line
- high-voltage line