Raceways used in damp or wet locations must utilize what type of fittings?

For raceways installed in damp or wet locations, it is crucial to use listed wet fittings. These fittings are designed and tested to withstand the exposure to moisture or water, ensuring that they maintain their protective and functional integrity in such environments. Listed wet fittings are specifically categorized and certified for use in conditions where they may be submerged or exposed to water sources, providing the necessary sealing and durability features.

Using unlisted, dry, or generic fittings in these environments could result in inadequate protection against moisture ingress, which can lead to corrosion or electrical failures. The National Electrical Code (NEC) mandates the use of appropriately rated fittings to ensure safety and reliability in electrical installations, particularly in areas subject to wetness. Therefore, selecting listed wet fittings is essential for compliance and for safeguarding the longevity of the electrical system in residential and commercial applications.