Which type of raceway is not permitted for use in a wet location?

When considering the use of raceways in wet locations, it is essential to understand the appropriate ratings and materials involved. Fittings that are not rated for wet locations are not permitted in these environments due to their lack of waterproofing and protective measures. Wet locations are defined as areas that are subject to moisture or water exposure, and any materials used in such settings must be designed to withstand these conditions.

In contrast, non-metallic raceways and rigid metal conduits can be designed or rated for wet locations, assuming they are manufactured for that specific purpose. In-ground raceways can also be acceptable as long as they are properly installed and rated for underground use. Therefore, the crucial factor is that any fittings or raceways used in wet locations must be explicitly rated for such conditions to ensure safety and compliance with the electrical code.

This focus on the ratings emphasizes the importance of selecting the right components for different environments, which is vital in maintaining electrical safety and preventing failures in wet areas.