What about installing lighting equipment outdoors? You can find these requirements in Sec. 225.7 of the NEC. The first requirement is that the branch circuits must comply with Art. 210, which covers branch circuits [225.7(A)]. The additional requirements these must meet are in Sec. 225.7(B) through (D).
B) Determine the maximum net calculated load current between the neutral conductor and all ungrounded conductors connected to any phase of the circuit. This value is the minimum ampa