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What are RS- 1, RS-2 and RS-3 of power supply reliability?
Power supply reliability rate RS 1 is the main index of power supply reliability. RS 1 is the ratio of total hours of effective power supply time to statistical cycle hours: RS 1 =( 1- average outage time of users/statistical cycle hours) × 100% The power supply reliability is RS2 when external influences are not considered, and RS3 when power shortage is not considered.