To limit the probability that deficiencies in emergency power systems will go unnoticed, which could lead to corrective action on such deficiencies not being taken, which could lead to emergency power systems not operating as originally intended when there is a loss of normal power in a fire situation, which could lead to the inability of the emergency power systems to supply fire protection systems, which could lead to the inability of water supply and fire protection systems [that rely on booster or fire pumps, or electrical power] to control or suppress a fire, which could lead to the spread of fire, which could lead to damage to adjacent buildings or facilities.