Question

SAW, ESW, and EGW can be used to cover large areas with welded coverings of special alloys. True or False?

1) True
2) False

Answer 1

The claim that high-voltage transmission wires are wrapped in insulating material is false; they are kept insulated by air and are connected to towers by insulating connectors.

Step-by-step explanation:

The statement that high-voltage wires are wrapped in an insulating material is false. The wires that you see connected to tall metal-frame towers, which are part of electrical transmission lines, are not wrapped in insulating material.

Instead, they are held aloft by insulating connectors, which prevent the high-voltage current from becoming grounded. The air surrounding the wires acts as a natural insulator at high voltages, which makes it unnecessary to cover the wires themselves with an insulating material over long distances outdoors.

Answer 2

The statement "SAW, ESW, and EGW can be used to cover large areas with welded coverings of special alloys" is false because high-voltage wires are held aloft by insulating connectors but are not wrapped in insulating materials due to practicality and cost (Option 2).

Step-by-step explanation:

The statement that high-voltage wires connected to tall metal-frame towers are held aloft by insulating connectors and are wrapped in an insulating material is false. High-voltage wires are indeed held up by insulating connectors to prevent the electricity from grounding, but they are not wrapped in insulating materials. The reason is that covering such long distances with insulating material would be impractical and very costly. Instead, these wires are left bare and are placed at a safe distance above the ground and away from each other to prevent electrical discharge into the surrounding air.

Thus, the correct answer is option 2.