On February 24, 2012, we received a directive document^* titled "Measures against the temperature increase in the lower part of the Reactor Pressure Vessel of Unit 2 at TEPCO Fukushima Daiichi Nuclear Power Station (Direction)" from Nuclear and Industrial Safety Agency (NISA) of Ministry of Economy, Trade and Industry. (Press release issued on February 25, 2012.)

In accordance with the direction, we have evaluated the reliability of each thermometer currently in use and reported the results to NISA.

Attachment
Reliability Evaluation of the Thermometers Used in the Reactor and the Primary Containment Vessel at Unit 1-3 at Fukushima Daiichi Nuclear Power Station (Submitted in September 2012)(PDF 808KB)

*Directive document: "Measures against the temperature increase in the lower part of the Reactor Pressure Vessel of Unit 2 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.