3/22/2011 07:00 AM Unit  1 2 3 4 Power (MWe /MWth) 460/1380 784/2381 784/2381 784/2381 Type of Reactor BWR-3 BWR-4 BWR-4 B...
3/22/2011 07:00 AM Unit  5 6 Power 784/2381 1100/3293 Type of Reactor BWR-4 BWR-5 Status at the EQ occurred Outage Outage ...
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IAEA Summary of Fukushima Daiichi Reactor Unit Status: 22 March 2011 @ 0700 UTC

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  • 03/22/11 17:50
  • 03/22/11 17:50
  • IAEA Summary of Fukushima Daiichi Reactor Unit Status: 22 March 2011 @ 0700 UTC

    1. 1. 3/22/2011 07:00 AM Unit 1 2 3 4 Power (MWe /MWth) 460/1380 784/2381 784/2381 784/2381 Type of Reactor BWR-3 BWR-4 BWR-4 BWR-4 Status at time of EQ In service – auto shutdown In service – auto shutdown In service – auto shutdown Outage Core and fuel integrity Damaged Damaged Damaged No fuel in the Reactor RPV & RCS integrity Unknown Unknown Unknown Not applicable due to outage plant status Containment integrity No information Damage suspected No information AC Power Substation connected AC Power available – Load check is ongoing Not available Not available Building Severe damage Slight damage Severe damage Severe damage Water level of RPV Around half of Fuel is uncovered (Stable) Around half of Fuel is uncovered (Stable) Around half of Fuel is uncovered (Stable) Not applicable due to outage plant status Pressure of RPV Stabilized Unreliable Readings Decreased CV Pressure Drywell Stable Stable Decreased Water injection to RPV Seawater Seawater Seawater Water injection to CV No information No information No information Spent Fuel Pool Status No spraying reported Periodic spraying from outside Periodic spraying from outside Periodic spraying from outside
    2. 2. 3/22/2011 07:00 AM Unit 5 6 Power 784/2381 1100/3293 Type of Reactor BWR-4 BWR-5 Status at the EQ occurred Outage Outage Core and Fuel Cold Shutdown Cold Shutdown RPV & RCS integrity Intact Intact Containment int. No damage expected No damage expected AC Power Switched from emergency diesel to off-site power Emergency diesel Off-site power being restored Building No damage reported No damage reported Water level of RPV Above fuel Above fuel Pressure of RPV Decreased Decreased Containment Pressure No information No information Water injection to RPV Water injection as needed via the RHR system Water injection as needed via the RHR system Water injection to CV Not needed now Not needed now Spent Fuel Pool Status Cooling restored Cooling restored Severe condition Concern No immediate concern

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