Yes, there are specific codes and standards for wet location exit signs. These are primarily governed by the National Electrical Code (NEC), the National Fire Protection Association (NFPA), and Underwriters Laboratories (UL).
1. **National Electrical Code (NEC):** The NEC, particularly Article 700, covers emergency systems, including exit signs. It mandates that exit signs in wet locations must be suitable for such environments, meaning they should be weatherproof and resistant to moisture.
2. **National Fire Protection Association (NFPA):** NFPA 101, also known as the Life Safety Code, provides guidelines on the placement, visibility, and illumination of exit signs. It requires that exit signs in wet locations be designed to withstand exposure to water and other environmental factors.
3. **Underwriters Laboratories (UL):** UL 924 is the standard for emergency lighting and power equipment, including exit signs. Wet location exit signs must be UL 924 listed, ensuring they meet specific criteria for performance and safety in wet conditions.
4. **Ingress Protection (IP) Rating:** Wet location exit signs often have an IP rating, which indicates their level of protection against solids and liquids. A higher IP rating, such as IP65 or IP66, is typically required for wet locations to ensure the sign is dust-tight and protected against water jets.
5. **Design and Material:** Wet location exit signs are usually constructed from materials like polycarbonate or stainless steel to resist corrosion and water ingress. They may also feature sealed enclosures and gaskets to prevent moisture penetration.
Compliance with these codes and standards ensures that wet location exit signs are reliable, visible, and safe in environments exposed to moisture, such as outdoor areas, bathrooms, and industrial settings.