Tomari (Japan)

Map of Tomari

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2* 550 MW PWR constructed by MHI ; grid connectien in 1988/90

Facilities in Tomari

plantreactor typconstruction startoperation startshut down
Tomari-1PWR19851988
Tomari-2PWR19851990
Tomari-3PWR20042009
2007-09-18

Emergency diesel generator 1B shut down automatically during a start-up test. Safety rules required that emergency diesel generator 1A also was tested. When 1A was tested again the following day, it failed to start. The reactor was shut down manually. Foreign material was found inside the governors. The governor for 1A had only just been replaced in August.
(source: http://cnic.jp/english)

2006-01-06

"During periodic inspection in Tomari-1, 6 cracks were found near the welded portion of reinforcement metal in an emergency exhaust stack within the controlled area of the reactor building. 5 of these cracks penetrated right through the walls of the stack. 7 cracks were also found near the welded portion of reinforcement metal in the main exhaust pipe. 6 of these cracks penetrated right through the walls of the stack. The cracks were caused by fatigue due to vibration."
(source: http://cnic.jp/english/)

2002-09-30

"Significant wastage found at maintenance boiler tubes."
(source: http://cnic.jp/english/)

1995-03-24

Four workers burned due to fire followed by small explosion in condensate tank of LLW bituminizer.

1991-05-02

617 cracks in 309 low-pressure turbine stationary blades found during inspection