On June 7, 2011, we received a directive document*1 "Anti-earthquake Countermeasures for the Switchyards etc. for Ensuring Reliability of the Office Power Supply of Nuclear Power Stations (Direction)" from the Nuclear and Industrial Safety Agency (NISA) of the Ministry of Economy, Trade and Industry. In accordance with the direction given, we submitted a report on the status of the evaluation regarding the possibility of collapse and damage etc. to the electrical facilities such as switchyards at our nuclear power stations to NISA on July 7, 2011. (Previously announced on June 7 and July 7, 2011)
On January 19, 2012, we received a directive document*2 "Anti-earthquake Countermeasures for the Switchyards etc. for Ensuring Reliability of the Office Power Supply of Nuclear Power Stations (Additional Direction)". Based on the direction, we have developed an implementation plan of seismic capacity evaluation of the switchyards, etc. at our nuclear power stations and submitted it to NISA on February 17, 2012. (Previously announced on January 19 and February 17, 2012)
In accordance with the implementation plan developed, we have conducted seismic capacity evaluation of the switchyards, etc. A report on the evaluation progress up until the end of September 2012 has been submitted to the Nuclear Regulatory Authority today.
Attachment
"Report on the Progress of Seismic Capacity Evaluation of the Switchyards etc. for Ensuring Reliability of the Offsite Power Supply of our Nuclear Power Stations (FY 2012 Second Quarterly Report)" (PDF 86.2KB)
*1 Directive document
"Anti-earthquake Countermeasures for the Switchyards etc. for Ensuring Reliability of the Office Power Supply of our Nuclear Power Stations (Direction)" (June 7, 2011 NISA No.1)
*2 Directive document
"Anti-earthquake Countermeasures for the Switchyards etc. for Ensuring Reliability of the Office Power Supply of our Nuclear Power Stations (Additional Direction)" (January 17, 2012 NISA No.1)
The aforementioned documents are available only in Japanese. We apologize for the inconvenience this may cause.
