Need some clarification on sub panel breakers and possible undersized wires.
The 200 amp main service supplied a sub panel from a 40 amp breaker using #8 AWG. This # 8 AWG wire was connected to a 100 amp main breaker in the sub panel. Is this a situation where you would report an undersized wire attached to the 100 amp breaker or is it redundant as the 40 amp breaker in the main panel should prevent more the 40 amps running through the #8 AWG wire? If you need clarification please ask.
Awaiting your responses. Thanks all.