[680.24 Junction Boxes.
(A) Junction Boxes. The pool luminaire junction box connected to a conduit that extends directly to the underwater pool, outdoor spa, and hot tub luminaire forming shell, shall comply with the following: Figure 680-18 un680-18 680-24A.cdr
(1) Construction. The junction box shall be listed for the purpose and shall be:
(1) Equipped with threaded entries or a nonmetallic hub,
(2) Constructed of copper, brass, or approved corrosion-resistant material, and
(3) Provided with electrical continuity between all metal conduit and the grounding terminals.
(a) Vertical Spacing. The junction box shall not be located less than 4 in. above the ground or pool, outdoor spa, or hot tub deck, or not less than 8 in. above the maximum water level.
(b) Horizontal Spacing. The junction box shall be located not less than 4 ft from the inside wall of the pool, outdoor spa or hot tub, unless separated by a solid fence, wall, or other permanent barrier.