Answer :

Final answer:

The statement about high-voltage wires being wrapped in insulating material is false. They are held by insulating connectors but are not individually insulated because air serves as the insulator at high voltages, where insulation would be impractical.

Explanation:

The statement that high-voltage wires connected to tall metal-frame towers are held aloft by insulating connectors and these wires are wrapped in an insulating material is false. High-voltage wires are indeed held up by insulating connectors to prevent the current from grounding through the towers.

However, contrary to the belief that they are covered in insulating material, these wires are actually not insulated. The air around the wires serves as a sufficient insulator. In residential and lower voltage applications, wires are typically insulated for safety, but at the high voltages seen in transmission lines, the thickness of the necessary insulation would be impractical, heavy, and very costly.

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Rewritten by : Barada