Don't quite know what to make of this. Seems incomplete or parts deleted: "Additions are underlined portion
<Notice of plants and conditions in Fukushima Daiichi Nuclear Power Station>
(As of March 29, 10:00 am)
March 29, 2011
Tokyo Electric Power Company
Fukushima Daiichi Nuclear Power Station
Fukushima Daiichi Nuclear Power Station Unit total (1 to No. 6) have been halted.
Unit 1 (Down)
3:00 pm - about 36 minutes on March 12, causing a large quake epicentral, Unit 1 near the big noise
Occurred in white smoke. Could be considered a hydrogen exploded.
- Around 2:30 am on March 23 and began injecting water into the reactor water supply system.
50 minutes - about 10 am on March 24, that the white potato and the like out of steam from the reactor building roof
Verified.
- Around 11:30 am March 24, a central control room with the lights lit.
- Until now, to the reactor by injecting water Orimashita, fresh from 37 minutes on March 25 at 3:00 pm
Injection began.
- Orimashita injected into the reactor by a fire pump fresh water so far, March 29, 8:00 am
32 minutes, made a switch to an electric pump to inject temporary.
2号機(停止中)
- Noise is generated near the pressure suppression chamber at about 6:00 am March 15, the pressure drop in the same room.
Minutes around 20:06 pm - March 21, has occurred and the potato-shaped white smoke from the roof of the reactor building,
Ensure that you are reduced to almost invisible for 11 minutes at 7:00 am on March 22
Mashita.
- Until now, to the reactor by injecting water Orimashita, fresh from the minutes March 26, 10:10 am
(With boric acid) injection has started.
4:00 pm - about 46 minutes on March 26 with a central control room lighting illuminates.
- Orimashita injected into the reactor by a fire pump fresh water so far, March 27 at 6:00 pm
31 minutes, made a switch to an electric pump to inject temporary.
Unit 3 (Down)
Minutes around 1:11 am - March 14, the occurrence of white smoke and loud as the No. 1
Could be considered a hydrogen exploded.
- Around 8:30 am March 16, and also confirmed the occurrence of water vapor from the reactor building, such as.
- From around 6:15 am March 17, the indication that the increase in the pressure suppression chamber pressure,
Secure the sake of completeness, March 20, which measures the pressure drop in the reactor containment (radiation
Release into the air outside, including some of the material) was preparing to make the current state
Is not a situation that requires immediate release of the future will pay close attention to the pressure and the condition of
Need.
* At 4:00 pm on March 21, but occurred slightly grayish smoke from the reactor building in March
And changes to a whitish smoke 22 - at the time, headed for termination.
- Around 10:45 pm on March 22, a central control room with the lights lit.
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Minutes around 20:04 pm - March 23, verify that you are experiencing brownish black smoke from the reactor building
For recognition. After about 50 minutes at around 4:00 am on March 24 and 11:30 pm, our company
To ensure that employees stopped the generation of smoke.
Until now, the reactor - to Orimashita infused with sea water, fresh water from the minutes of March 25, 2:06 pm
Infusion started.
- Orimashita injected into the reactor by a fire pump fresh water so far, March 28, 8:00 pm
30 minutes, made a switch to an electric pump to inject temporary.
No. 4 (Down in the Periodic Inspection)
- Around 6:00 am on March 15, causing a loud, check the 5th floor roof damage near the reactor building.
- March 15, in the northwest near the reactor building four floors each 16 days to review the fire, extinguishing
Contacted the police to prevent such, our people found out that both the natural fire.
- At present, the coolant leak in a containment vessel is not believed to.
No. 5 (Down in Periodic Inspection)
- We do not have secure water reactor safety issues.
5:00 am - March 19, residual heat removal system pumps (C) Start of the spent fuel pool cooling
Started.
2:30 pm - March 20, the reactor was stopped cold now, March 23 at 5:00 pm
At around 24, water pump when the power is switched temporary residual heat removal system for automatic stop.
After about 14 minutes at 4:00 pm on March 24, replaced the pump started, around 4:00 pm yesterday 35 minutes,
Cooling the reactor resumed.
- At present, the coolant leak in a containment vessel is not believed to.
No. 6 (Down in Periodic Inspection)
- We do not have secure water reactor safety issues.
- Emergency Diesel Generator (A) has completed repairs.
Minutes around 14:10 pm - March 19, residual heat removal system pumps (B) Start the spent fuel pool
Cooling started.
1:27 - 7:00 pm March 20, the reactor was stopped cold now.
• About two alternative residual heat removal system pumps water, 38 minutes at 3:00 pm and 3:00 pm on March 25
Made a switch from the supply of temporary power set at 42 minutes.
- At present, the coolant leak in a containment vessel is not believed to.
Spent fuel pool cooling work today
- While checking the status of the spent fuel pool in the future, you would like to discharge as required
Rimasu.
Persons Injured
Our employees in the field - two names, whereabouts unknown (occurs March 11)
- March 24, in the basement and first floor of Unit 3 turbine building, cable been working more
Three workers were subcontractors for about 170mSv see more doses. About two of them
They, make sure your feet skin contamination, but we decontamination, there is a possibility of beta radiation burns
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Ru was determined that, for transport to the Fukushima Medical University Hospital. The March 25,
Fukushima Medical University Hospital also moved to the remaining one, then in general radiology, Chiba
The hospital a total of three National Institute for the hospital on 28 March.
However, regarding this event, committed during work management and strict control of radiation exposure further
The order to summarize lessons learned and future countermeasures for the event, and we do explain to the country.
Prior to the work, and to inform those concerned, Mairi Every effort will manage future
The.
Other
Car campus power plants - Monitoring (outdoor) of radioactive material (such as iodine) through measurements
Has risen from normal values, as follows, the provisions of paragraph 1 of Article 15 of Law on Special Measures Concerning Nuclear Emergency
Rating based on certain events (abnormal rise in the site boundary radiation dose) is determined to have occurred.
17:04 pm - minute decision December 3 (MP4 close)
8:00 am - 56 minute decision May 13 3 (MP4 close)
- Determine the 13 at 2:15 pm 3 (MP4 close)
3:00 am - 50 minute decision May 14, 3 (MP6 close)
4:15 am - judge May 14 3 (MP2 and around)
9 am - 27 minute decision May 14, 3 (MP3 vicinity)
9:00 pm - 37 minute decision March 14 (near the main gate of the power plant)
6:00 am - 51 minute decision on March 15 (near the power plant main gate)
11:08 am - minute decision on March 15 (near the main gate of the power plant)
17:04 pm - minute decision on March 15 (near the main gate of the power plant)
Decision minutes - 15 March 5:11 pm (near the power plant main gate)
8:00 am - 58 minute decision 19 3 (MP5 close)
However, 500μSv readings / h is exceeded then, 500μSv / h decrease in the vicinity, repeatedly rising
Or if, we continue to have the same event, Article 15 of the Nuclear Emergency Response Act again
Certain events pursuant to paragraph 1 (abnormal rise in the site boundary dose) determination that has occurred
It tries to do. Abnormal value is measured obviously, but it is not the same event
If it is clear that the judge and hope to know soon.
* Because of the possibility of release of radioactive material for a radius of 20km points evacuate residents within a country
The show has been issued, from 30km to 20km radius has also been issued voluntary evacuation instructions.
- Start the injection of water into a shared pool 37 minutes at 10 am March 21, at 3:30 pm yesterday
Time has ended. (Our implementation)
37 minutes - about 3:00 pm on March 24, started supplying power to the shared pool from an external source, then
Minutes around 5:06 pm, start the fuel pool cooling pumps and began to cool in the pool.
Patrols of the building - was dry cask, not the result of abnormal appearance visual inspection,
Check the details in the future.
- 5,6 roof of the reactor building of Unit in the hole to prevent accumulation of hydrogen gas (3 points) Open
Mashita.
- Fire engines are used in irrigation and drainage to the reactor to the spent fuel pool, Fire Toukyou
Other parts of the Agency Fire Department
*
We received 12 units leased. In addition, our Niigata City Fire Department
From Hamamatsu City Fire Department and the establishment of large-scale decontamination systems, under the guidance of our management
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Rimasu.
* District Fire Department Union City Fire Defense Koriyama, Iwaki City fire department, local fire department Sukagawa regional,
Yonezawa City Fire Department, Fire Department Local Union Regional Municipality Region Development Aizu Wakamatsu city of Utsunomiya Fire
Department, Fire Department, Saitama City, Niigata City Fire Department
March 22 - before one began receiving the external power supply - Unit 6.
- Around 3:30 pm on March 27, the shaft 1溜Ma water out of the trench Unit 3 turbine building
'll Have to confirm that. Dose of water surface, the No. 1 0.4mSv / h, the No. 2 1000
mSv / h was over. As for Unit 3 is to measure the dose failure and debris
And failed. Subsequently, we will monitor the water in the shaft.
* Smitten with every effort toward securing the safety, continued monitoring of the surrounding environment
We will continue to monitor.
And over "
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