What is the minimum height required for luminaires without GFCI protection above an indoor spa or hot tub?

The minimum height required for luminaires without GFCI protection above an indoor spa or hot tub is indeed 12 feet. This requirement is outlined in the National Electrical Code (NEC) to ensure safety in areas where water and electrical equipment coexist. A height of 12 feet helps minimize the risk of electrical shock, as it reduces the likelihood of someone coming into contact with the luminaire while in or near the water.

In residential applications, the proximity of water to electrical components is a critical concern, particularly in hot tub or spa environments where moisture can increase the risk of electrical hazards. By setting the minimum height for fixtures, the NEC provides a safer operating environment for users.

Choosing a height below this minimum could jeopardize safety, as it would increase the risk of accidental contact with the luminaire, especially in the event of splashing water. This regulation reflects the importance of maintaining adequate space between electrical fixtures and water sources to protect individuals from potential electric shock.