Answer :
Final answer:
Set screw-type connectors are not permitted for use with aluminum armored cable, as NEC regulations usually require connectors that ensure a secure connection appropriate for the material. High-voltage wires on metal towers are not wrapped in insulating material; instead, the air serves as the insulator, with insulating connectors keeping the wires aloft. Correct answer is b) No.
Explanation:
No, set screw-type connectors are not permitted to be used with armored cable that has an aluminum armor. When it comes to electrical installations, the National Electrical Code (NEC) sets out specific requirements for the types of connectors that should be used with different wiring methods. Typically, set screw-type connectors may not provide a secure enough connection for aluminum armored cable or may not be rated for that use, potentially leading to issues with grounding and bonding or even presenting a fire hazard.
In the case of the high-voltage wires that are connected to tall metal-frame towers, it is false that these wires are wrapped in an insulating material. Instead, they are held aloft by insulating connectors, which are necessary because the air around the wires serves as the insulating medium, preventing the flow of electric current to the ground or between phases of the wires. Traditional insulating materials that are commonly used in household wiring are not suitable for high-voltage transmission due to the great distances between the towers and the strength of the electric field generated by the high voltages.
