Insulated conductors used in wet locations must comply with what directive?

The requirement for insulated conductors used in wet locations is that they must be marked for wet locations, which ensures that the electrical insulation is suitable for exposure to moisture. This marking signifies that the conductors have been tested and evaluated under conditions that replicate the challenges posed by wet environments, such as water contact and increased humidity.

Additionally, while conductors that are marked for wet locations may also be rated for dry conditions or approved for direct burial, these attributes are not prerequisites for all applications in wet locations. The critical factor is the marking indicating that the conductors can safely operate in environments where they may come into contact with water. Therefore, the directive emphasizes the importance of proper marking for wet locations to ensure safety and compliance with regulations for electrical installations.