What is NOT part of the definition of ampacity?

Ampacity refers to the maximum amount of electric current a conductor or device can carry before sustaining immediate or progressive deterioration. Therefore, certain aspects are integral to its definition:

Carrying current continuously is a fundamental characteristic of ampacity, as it indicates the conductor's capability to handle a steady load without overheating. Another essential aspect is the ability to carry current without exceeding its temperature rating, which ensures the material’s integrity over time. Additionally, the concept of handling reverse current could be relevant in specific applications, but it’s not a primary consideration when defining ampacity itself.

Intermittent current handling, while it is a factor in some electrical applications, does not align with the standard definition of ampacity, which focuses on the sustained current characteristics. Thus, this choice reflects a concept that is not essential to the core understanding of what ampacity is.