What is the maximum size of drain holes allowed in signs and outline lighting system equipment for wet locations?

The maximum size of drain holes allowed in signs and outline lighting system equipment for wet locations is indeed 1/2 inch. This specification is essential for ensuring that water does not accumulate within the lighting fixtures or signs, which can lead to electrical failures and safety hazards. A 1/2 inch drain hole strikes a balance, allowing water to escape while preventing larger debris from entering the fixture, which helps maintain the integrity and functionality of the equipment in wet conditions. Compliance with this size limitation helps ensure that the installations are safe and reliable over time.