What must be connected to the equipment grounding terminal of the panelboard in a pool light junction box?

The equipment grounding terminal of the panelboard in a pool light junction box must be connected to grounding terminals. This connection is essential for maintaining safety and protecting against electrical faults. In the context of swimming pools and similar installations, grounding is a critical safety element because it helps prevent electric shock hazards.

Grounding terminals ensure that any stray electrical current is directed safely into the ground instead of through a person or other conductive materials that may come into contact with the pool water. This is especially crucial in areas where water and electricity are in close proximity. By connecting the grounding terminal to the panelboard, it establishes a reliable path for fault current, which can help in tripping breakers and preventing electrical fires or shocks.

Thus, grounding provides a necessary layer of safety for users, especially in environments with high electrical risk, such as pool areas. This adherence to grounding requirements is mandated by NEC guidelines, which specifically detail the importance of proper grounding in installations involving water to mitigate dangers associated with electricity.