On February 24, 2012, we received a directive document^* "Measures against the temperature increase in the bottom of Unit 2 RPV at TEPCO Fukushima Daiichi Nuclear Power Station (Direction)" from the Nuclear and Industrial Safety Agency (NISA) of the Ministry of Economy, Trade and Industry. (Previously announced on February 25, 2012)

In accordance with the direction, we evaluated the reliability of the thermometers currently in use and reported the results to the Nuclear Regulation Authority today.

Attachment
"Reliability Evaluation of the Thermometers Used in Units 1-3 Reactors and PCV at Fukushima Daiichi Nuclear Power Station (Submitted in December 2012)" (PDF 1.59MB)

*Directive document
"Measures against the temperature increase in the bottom of Unit 2 RPV at TEPCO Fukushima Daiichi Nuclear Power Station (Direction)" (February 24, 2012 NISA No.4)

The aforementioned documents are available only in Japanese. We apologize for the inconvenience this may cause.