What are the main components of an overhead transmission power line?

2025-08-12

An overhead transmission power line consists of three primary components:

  • Conductors: These are the actual wires that carry the electrical current. They are typically made of steel-reinforced aluminum (ACSR) to balance strength and conductivity.

  • Insulators: Made from materials like ceramic or glass, these components isolate the conductors from the support structures to prevent the electrical current from flowing to the towers or ground.

  • Support Structures: These are the towers or poles (made of wood, steel, or concrete) that hold the conductors and insulators at a safe height above the ground.

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