The branch circuit for a residential swimming-pool pump runs through a wet location as determined by the authority having jurisdiction. Under 2026 NEC 680.7(A), what is the minimum size of its insulated copper equipment grounding conductor if Table 250.122 and all other applicable conditions do not require a larger size?
- A10 AWG
- 12 AWG
- C14 AWG
- D16 AWG
Where to look it up
https://www.mikeholt.com/instructor2/img/product/pdf/182ff360f3608ef4a26dcd9e7a0a6364.pdf
Why B is correct
12 AWG is the minimum insulated copper equipment grounding conductor for this wet-location pool circuit under 680.7(A). The 14 AWG and 16 AWG choices are below that floor; 10 AWG is larger than the stated conditions require. This is the equipment grounding conductor, not a universal minimum for the circuit’s current-carrying conductors. The equipment grounding conductor still must satisfy Table 250.122 when that requires a larger size. Source: Mike Holt Enterprises, Understanding the 2026 National Electrical Code, Volume 2, first printing April 2026, public Article 680 sample, printed page 163 (680.7(A)). https://www.mikeholt.com/instructor2/img/product/pdf/182ff360f3608ef4a26dcd9e7a0a6364.pdf