Corporate Information

Press Release (Dec 03,2007)
Status of the Unit 5 in-core inspections at the Kashiwazaki-Kariwa Nuclear Power Station
As for the Unit5, we have been conducting the in-core inspections
(Phase 1&2) since Nov.22nd.
At around 5:40 pm today, we found that the wedge of the No.1 jet
pump* among 20 jet pumps was moved from the right position.  The
wedge is fitted in from the above in order to prevent vibration
of an inlet mixer during reactor operation. (announced on Nov. 29th)     

After that, we conducted inspections for the other 19 jet pumps and 
as a result, no abnormality such as misalignment of the wedge has
been found.
We will continue the in-core inspections (Phase 1&2) and investigate
the cause of this misalignment.

*Jet pump
A motionless-type pump without rotation parts for water circulation
inside the reactor, using water pressured by a reactor recirculation

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