What is the maximum water level a luminaire must be installed at what height above?

The correct height for installing a luminaire above water is 12 feet, as specified in NEC Article 680. This regulation is in place to ensure safety in areas prone to wet or damp conditions, such as pools or spas. By maintaining a minimum height of 12 feet, the risk of electrical hazards is significantly reduced, preventing potential contact with water that could lead to shock or electrocution.

This requirement reflects the NEC's emphasis on safeguarding individuals from electrical risks in aquatic environments. It recognizes that water conducts electricity and that any electrical equipment, including luminaires, must be positioned to minimize direct exposure to water. Thus, the 12-foot stipulation serves as a crucial aspect of ensuring that both the installation and operation of outdoor lighting in these settings remain safe.