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: Thu, 11-03-1993
ERF description: Unit was under cold shutdown. Moderator was in dumped condition. While normalising moderator system, a temporary ion exchange column was hooked up on series with normal purification IX column. This was connected by reinforced PVC hose. 15 minutes after valving in the additional column, the hose was found to have come out resulting in spillage of heavy water which resulted in higher Tritium concentration in accessible areas. Reactor Building exhaust fan with higher capacity was started to reduce the Tritium concentration. Investigations revealed that an improper hose and clamp of incorrect size was used for connection of temporary ion exchange column.
Justification: The incident has been considered as if it has taken place in non reactor installations because the reactor was in cold shutdown state and the moderator was in dumped condition and moderator heavy water was being circulated from the storage tank only and as such it was in no way connected with the reactor. As per users manual clause IV 3.3 the incident is rated at level 1 due to deficiency in safety culture.
ERF rating date: 14-10-1992
ERF contact person: MR. V. KUMAR
ERF address: BARC, TROMBAY, India
ERF affiliation: GOVERNMENT OF INDIA, ATOMIC ENERGY REGU, OPERATING PLANTS SAFETY DIVISION, CENTRAL COMPLEX, 4TH FLOOR

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