Research Article
Risk-Based Allowed Outage Time and Surveillance Test Interval Extensions for Angra 1
Table 1
AOT and STI proposed extensions.
| System | AOT | STI |
| Safety injection system (SIS) | 24 hours 168 hours | 1 month 3 months | Service water system (SWS) | 48 hours 168 hours | 1 month 3 months | Auxiliary feedwater system (AFWS) | 48 hours 168 hours | 1 month 3 months |
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