On a restaurant build-out during plan review, what is the primary hazard addressed by arc-fault circuit-interrupter protection?
- Hazardous-arcing ignition
- BUtility frequency variation
- CMechanical overspeed
- DExcessive water pressure
Why A is correct
AFCI technology detects characteristic arcing associated with damaged wiring and connections; it does not replace all overload or ground-fault protection. The best answer is therefore “Ignition from hazardous arcing conditions.” The other choices either address a different system, rely on an unsafe shortcut, or make a conclusion not supported by the stated facts.