Stichting Laka

Event Report Forms (ERFs) are filed to the IAEA. Sometimes there are multiple event reports, updating the rating, the event description. Here you only see the latest event report

ERF send date: Tue, 25-07-1995
ERF description: Kori unit 3 was operated at rated power. During the routine surveillance, worker found that instrument air was leaked from bypass pressure control valve of condensate demineralizer.
Repair was begun without considering its influence because workers didn't know that this task might cause reactor trip.
Despite repairing a positioner of control valve was failed.
So all of the MFWPs are stopped by "Inlet Pressure Low' signal and reactor was tripped by S/G level 'Lo-Lo' signal finally.
There was no release of radioactive materials outside the reactor building and no unplanned exposure to employees.
Justification: As full safety functions were available, the event is rated at level "0" as per user's manual Part III, Table II, A1.
ERF rating date: 07-07-1995
ERF contact person: Y.C. KANG
ERF address: KYUNGGI-DO, 427-760, GWACHEON CITY, South Korea
ERF affiliation: NUCLEAR INSPECTION AND ENFORCEM. DIV, MINISTRY OF SCIENCE AND TECHNOL., GOVERNMENT COMPLEX II

This map shows a selection of reports from nuclear and radiological incidents stored in the IAEA NEWS-database.
Locations are estimates. Contact us if a location is wrong.
The map shows a maximum of 100 incidents. If hundred incidents or more are within the map, the yellow perimeter indicates from where events are excluded. Drag or zoom the map to explore different areas.

Power Reactor Research Reactor Radwaste Facility Enrichment Facility Radiation Source Irradiation/Accelerator Facility Transportation

Fuel Fabrication Fuel Reprocessing Research Facility Mining/Milling Radioisotope Processing/Handling Facility Other