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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: Wed, 24-04-1996
ERF description: Yonggwang unit 1 was operated at full power. During normal operation, surveillance tests for reactor protection system were carried out. Worker did not notice that he missed one step of procedure. The omitted step was to change the mode of selector switch from "operation" to "test". As mode of selector switch was not correct, one of the test contact points generated turbine trip signal. Reactor was tripped by turbine trip and P-7 interlock.
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: 09-04-1996
ERF contact person: JEONG-IL YOO
ERF address: GOVERNMENT COMPLEX II, South Korea
ERF affiliation: NUCLEAR INSPECTION AND ENFORCEMENT DIV, ATOMIC ENERGY OFFICE, MIN. OF SCIENCE & TECHN.

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