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Table 4
Description of environmental source terms for Spanish NPP with PWR.
| Source term name | MA-SBO-173 |
| Reactor type | PWR |
| Initiating event | STATION BLACKOUT – total loss of AC power |
| Description of scenario | Running out of batteries 24 h after accident initiation – dry out of SG's; Core damaged; RPV failure – start of MCCI; CONT not damaged – depressurization of CONT by filtered venting; |
| Begin of release (after end of chain reaction) | 32 h |
| Duration of release | 48 h (first) + 14 h (filtered venting) + 12 h (last) = 74 h |
| Total release | |
| 131I | 8.6 PBq |
| 137Cs | 1.7 PBq |
| 133Xe | 2 610.0 PBq |
| Radiological equivalent of 131I activitya | 88.7 PBq |
| INES category | 7 |
a
Radiological equivalent of the 131I has been calculated according to INES (2009) methodology.
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