Final answer:
The statement is false; high-voltage wires are held aloft by insulating connectors but are not wrapped in insulating material, as the air serves as the insulator.
Step-by-step explanation:
The statement is false. High-voltage wires, which are connected to tall metal-frame towers, are indeed held aloft by insulating connectors to prevent electrical current from grounding.
However, these wires are not wrapped in insulating material. Instead, they are typically bare and are kept at a sufficient height above the ground and spaced apart to prevent arcing and to ensure the safety of anything or anyone beneath them. The air around the wires serves as the insulating medium to mitigate the risk of electrical discharge.
SIP panels, which stands for Structural Insulated Panels, are typically made by sandwiching a core of rigid foam plastic insulation between two structural skins of OSB, which stands for Oriented Strand Board. This construction creates a strong and energy-efficient building material.
For example, in a SIP wall panel, the foam insulation is sandwiched between two OSB panels. The OSB panels provide structural support and the foam insulation provides thermal insulation. This combination of materials makes SIP panels an excellent choice for constructing energy-efficient buildings.