We are announcing the status of major inspections and restoration works and nonconformances
at TEPCO's Kashiwazaki-Kariwa Nuclear Power Station after the Niigata-Chuetsu-Oki Earthquake.
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We sincerely apologize for having caused anxiety to local residents due to various hazards.
With regard to the fire that broke out at the turbine building of TEPCO's Kashiwazaki-Kariwa
NPS unit No.7 on November 22nd, 2008, the fire headquarters of Kashiwazaki City and the
Nuclear and Industrial Safety Agency of the Ministry of Economy, Trade and Industry have
instructed TEPCO on November 26th and November 28th, respectively, to revamp our efforts
to prevent fire hazards from happening.
On December 2nd, the Niigata prefecture has also requested us to reinforce focus on safety
management in light of the recent fire and injury caused during restoration works.
We sincerely acknowledge the instructions and requests from various institutions and will
do our best to prevent recurrence of events by increasing the level of safety consciousness
together with cooperating companies.
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Inspection/Restoration Status
○ Inspection and restoration completed between November 28th to December 4th, 2008
(Completed on the following date)
• Unit No.7 Reactor pressure vessel closure:
November 28th
• Restoration work for solid waste storage facility (Transportation of drums to temporary
warehouse):
November 28th
○ Inspection and restoration to be commenced between December 5th to December 11th, 2008
(To be commenced on the following date)
• Unit No.1 Main exhaust duct inspection and restoration (Restoration of substruction) :
December 1st*
• Unit No.1 Seismic reinforcement works (Preparation for seismic reinforcement works for
the roof truss of the reactor building):
December 11th
• Unit No.2 Main exhaust duct inspection and restoration (Restoration of substruction) :
December 1st*
• Unit No.5 Seismic reinforcement works (Preparation for seismic reinforcement works for
the roof truss of the reactor building):
December 8th
• Unit No.6 System functional test (Functional test of the flammability control system):
December 4th*
• Unit No.6 System functional test (Functional test of stand-by liquid control system):
December 5th
• Unit No.6 System functional test (Functional test of main steam isolation valve):
December 7th
• Unit No.6 System functional test (Functional test for main control room emergency
circulation system):
December 10th
• Unit No.6 System functional test (Functional test for DC power source system):
December 10th
• Unit No.6 System functional test (Interlock functional test for liquid waste storage
facility and disposal equipment #1):
December 11th
• Unit No.7 Stack inspection (Inspection of outdoor duct):
December 5th
• Unit No.7 System functional test (Inspection of the reactor building airtightness):
December 7th
• Unit No.7 System functional test (Interlock functional test for reactor protection
system [Interlock system for turbine facilities]):
December 9th
• On-site check, inspection and restoration of the oil protection bank for the transformer
(Unit No.4 Restoration work):
December 11th*
• Restoration work for solid waste storage facility (Preparation work for prevention
countermeasure for drum falling)
November 29th*
* Work schedules added and altered this week.
○ Work Schedule of Major Inspection/Restoration from November 30th to December 27th, 2008
• Work Schedule of the Main Inspection/Restoration of the Kashiwazaki-Kariwa Nuclear
Power Station in Response to the Niigata-Chuetsu-Oki Earthquake (during 4 Weeks)
....Appendix
(Reference)
Nonconformances Found in the Inspection and Restoration Works Performed after the
Niigata-Chuetsu-Oki Earthquake
Based on the "Public Announcement Regarding Nonconformance Found in the Inspection
and Restoration Works Performed after the Niigata-Chuetsu-Oki Earthquake", the Tokyo
Electric Power Company, Incorporated (TEPCO) provides this announcement containing
incidents information reported from November 27th to December 3rd, 2008.
○ Incidents Information (relating to the Chuetsu-Oki Earthquake) |
< Reports from November 27 to December 3, 2008 > |
○ Other Findings
Nothing to disclose this week. Appendix: Work Schedule of the Main Inspection/Restoration of the Kashiwazaki-Kariwa Nuclear
Power Station in Response to the Niigata-Chuetsu-Oki Earthquake (during 4 Weeks)
(PDF 98.8KB) |