Summary of-reactor-status-02-april-2011-1200-utc
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Summary of-reactor-status-02-april-2011-1200-utc

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On Friday, 2 April 2011, the IAEA provided the following information on the current status of nuclear safety in Japan:

On Friday, 2 April 2011, the IAEA provided the following information on the current status of nuclear safety in Japan:

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  • 04/02/11 13:20
  • 04/02/11 13:20

Summary of-reactor-status-02-april-2011-1200-utc Presentation Transcript

  • 1. 02/04/2011 07:00 UTC 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 Severe damage Damaged No fuel in the Reactor RPV & RCS integrity RPV temperature high but stable RPV temperature stable RPV temperature stable Not applicable due to outage plant status Containment integrity No information Damage suspected Damage suspected AC Power AC power available - Power to instrumentation – Lighting to Central Control Room AC power available – power to instrumentation – Lighting to Central Control Room AC power available – Lighting to Central Control Room AC power available – power to instrumentation - Lighting to Central Control Room Building Severe damage Slight damage Severe damage Severe damage Water level of RPV Around half of Fuel is shown 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 Slightly decreasing Stable Stable CV Pressure Drywell Decreasing trend Stable Stable Water injection to RPV Injection of freshwater – via mobile electric pump with diesel backup power Injection of freshwater – via mobile electric pump with diesel backup power Injection of freshwater – via mobile electric pump with diesel backup power Water injection to CV No information No information No information Spent Fuel Pool Status Fresh water spraying completed by concrete pump truck Freshwater injection to the Fuel Pool Cooling Line Freshwater injection via Fuel Pool Cooling Line and Periodic spraying Seawater injection via Fuel Pool Cooling Line and Periodic spraying
  • 2. 02/04/2011 07:00 UTC 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 Being maintained using off-site electrical power and existing plant equipment. Cold Shutdown Being maintained using off-site electrical power and existing plant equipment. RPV & RCS integrity Containment int. AC Power Building Water level of RPV Pressure of RPV Containment Pressure Water injection to RPV Water injection to CV Spent Fuel Pool Status Severe condition Concern No immediate concern