IEEE 493-1997

Present the fundamentals of reliability analysis (i.e., probability methods, cost of interruptions, emergency and standby power, testing to demonstrate the reliability of emergency and standby power, electrical preventive maintenance, equipment reliability data, methods of evaluating and improving the reliability of existing plant facilities and the methodologies for assessing the frequency of interruptions to industrial and commercial power systems caused by voltage sags) that should be used in planning and designing reliable industrial and commercial power systems.