When raceways are installed in wet locations above grade, how should the interior be considered?

When raceways are installed in wet locations above grade, the interior of those raceways should indeed be considered a wet location due to the potential for moisture to enter and accumulate within. The National Electrical Code (NEC) stipulates that if the external environment in which the raceways are placed is defined as a wet location, the interior of the raceway must also adhere to the same classification.

This classification ensures that any conductors or cables within the raceways are protected adequately against moisture, which could lead to deterioration, increased risk of short circuits, or other electrical hazards. It’s essential for the materials used in these raceways to be rated appropriately for wet locations to maintain safety and functionality over time. By adhering to these standards, electricians and installers can ensure the longevity and safety of electrical installations in challenging environments.