What power line is made of
Wires on towers for transmitting power over distance.
- Insulator — has part. Insulators on the towers.
- Copper wire — has part. Wires (often aluminium).
- Electrical resistance — uses. High voltage reduces resistive losses.
- Steel — is made of. The towers are steel.
- Aluminium — is made of. The conductors are aluminium with a steel core.