An outdoor lighting system is to be installed in a residential garden. The lighting system will be powered by a 120V, 15A circuit. According to the 2023 NEC, what is the minimum wire size required for this circuit?
- A14 AWG
- 12 AWG
- C10 AWG
- D8 AWG
Exam tip
Ensure that the wire size selected is appropriate for the load requirements and the environment where the circuit is installed.
Why B is correct
The correct answer is 12 AWG. Table 310.16(B)(1) of the 2023 NEC specifies that a 15A load requires a minimum wire size of 12 AWG. Options a, c, and d are incorrect as they do not provide the necessary ampacity for the outdoor lighting system.