What critical role do fittings play in raceways?

Fittings play a crucial role in the functionality of raceways by facilitating the connection of raceways to devices. They are essential components that ensure a secure and effective transition from one section of raceway to another, as well as from the raceway to various electrical devices such as outlets, junction boxes, and switches. Proper use of fittings ensures that the raceways maintain their integrity and efficiency, allowing for safe and reliable electrical installations. This ability to connect raceways to devices is vital in both residential and industrial settings, as it supports the overall electrical system by providing necessary pathways for electrical conductors while enabling access points for maintenance or upgrades.

Other options may suggest less relevant functions, such as aesthetics or future expansions, but the primary and most critical function remains the facilitation of connections to devices.