Derating — Factor

A derating factor is a numerical value (typically between 0 and 1) applied to reduce the maximum allowable capacity of a component, device, or system under specific operating conditions. Its purpose is to increase reliability, safety, and lifespan by ensuring the equipment never operates at its theoretical maximum limit.

[ \text{Reduced Rating} = \text{Nominal Rating} \times \text{Derating Factor} ] derating factor