Which of the following would indicate a potential overload condition?

A continuous operation above normal full load rating signifies a potential overload condition because it indicates that the equipment is regularly drawing more current than it is designed to handle. When electrical equipment operates consistently at or above its normal full load rating, the risk of overheating and failure increases significantly. This can lead to insulation breakdown, conductor damage, and ultimately equipment failure if not addressed.

Normal operation within rated ampacity implies the equipment is functioning properly and efficiently without risk of overload. Equipment running cooler than the rated temperature suggests that it is not under undue stress and is likely operating within its designed parameters. Short bursts of high current usage might not indicate a sustained overload but could reflect transient conditions that occur in many applications without leading to overall system failure. Thus, continuous operation above normal full load rating stands out as a clear indicator of a potential overload condition.