On October 23, 2012, we submitted a request to change the technical specification for the nuclear reactor facility* at Fukushima Daiichi Nuclear Power Station to the Nuclear Regulation Authority.
Provided below is the outline of the requested change.
Since the common diesel generator B system (Unit 2 reactor B system diesel generator) has been recovered and is now on standby as an emergency power supply, provisions on the operation of the diesel generator will be added to the technical specification. The groups/divisions responsible for equipment management will be partially changed according to the progress of the reliability improvement of the external power supply.
(Previously announced on October 23, 2012)
The change above was reviewed by the government and has been approved by the Nuclear Regulation Authority today.
"Comparison table of the revision of the technical specification for the nuclear reactor facility at Fukushima Daiichi Nuclear Power Station" (PDF 20.7KB)
* Technical specification for the nuclear reactor facility
Government-approved fundamental rules for nuclear power station operators to follow in order to maintain safe operation and stable condition of nuclear power stations (including operation management, fuel management, radiation management, emergency measures and equipment/facility management based on the "Policy on the Mid-term Security"), which are stipulated by Article 37 Section 1 of the Act on the Regulations of Nuclear Source Material, Nuclear Fuel Material and Reactors.
The aforementioned document is available only in Japanese. We apologize for the
inconvenience this may cause.