According to Underwriters Laboratories (UL) standards, what percentage must a fire pump produce of its rated capability at 150 psi?

Underwriters Laboratories (UL) standards specify that a fire pump must produce 100% of its rated capacity when tested at a pressure of 150 psi. This requirement is crucial because it ensures that the fire pump can deliver the maximum amount of water needed under specific pressure conditions, directly contributing to effective firefighting efforts. Meeting this standard confirms the reliability and efficacy of the fire pump in emergency situations, where optimal performance can significantly impact fire suppression operations. Therefore, producing 100% of its rated capability demonstrates that the fire pump is functioning correctly and can be relied upon when needed most.