In which scenario would electrical conduit be required?

Electrical conduit is specifically required when wiring is exposed to physical damage. This is an essential safety measure to protect wiring from potential hazards such as collisions, falls, or environmental factors that can lead to wear and tear. Conduit acts as a guard, ensuring that the wire remains insulated and protected, thereby reducing the risk of shorts, electrical fires, or injury.

In contrast, wiring indoors does not inherently necessitate conduit if it is properly secured and protected in other ways. The installation of energy-efficient lights may not require additional protection unless they are located in an area vulnerable to damage. Additionally, wireless electrical devices do not use wired connections that would need conduit protection, as they operate through radio frequencies and do not rely on physical wiring that could be exposed to damage.