Europe: Sweden

▸ Legenda & explanation
date INES title location
23-11-2021INES 2Exposure of workers in excess of statutory annual dose limitsNorrköping
21-09-2017INES 2Contamination event at research facilityStudsvik Nuclear AB
07-10-2016INES 2Cyclotron operated with an open bunker doorUniversity Hospital of Umeå
30-05-2013INES 1EDG failed to start after unintentional loss of two phases on 400 kV incoming offsite supplyFORSMARK-3
02-12-2010INES 2Several mine workers overexposed by X-raysBoliden Mineral, Gällivare
21-05-2008[N/A]Small traces of explosives found in a security checkpoint near a NPPOSKARSHAMN-2
25-07-2006INES 1INES-rating due to earlier event at Forsmark 1 - Two emergency DG did not start when the unit was disconnected from the ordinary off-site gridFORSMARK-2
25-07-2006INES 2Two emergency dieselgenerators did not start when the unit was disconnected from the ordinary off site grid.FORSMARK-1
20-09-2004INES 0Event at a Studsvik laboratory producing radioactive sourcesStudsvik Nuclear AB
25-05-1999INES 2Temporary Loss of the seawater cooling systemsBARSEBECK-2
25-02-1999INES 0Core instability occurred during maintenance performed in the switchyardOSKARSHAMN-2
27-09-1997INES 2Closed valves in the containment spray pumps' suction lines during the non-nuclear phase of start-up after refuelingRINGHALS-4
17-08-1997INES 1Automatic protection system disconnected during non nuclear heat up after refuellingRINGHALS-2
16-05-1997INES 1Degraded containment pressure suppression function during shutdown of reactor before outage periodFORSMARK-2
01-07-1997INES 1Two out of four diesel generators unavailable due to loose connection to the voltage regulatorRINGHALS-2
01-11-1996INES 2One of the emergency core cooling systems - the core spray system - was unavailable at Oskarshamn-2OSKARSHAMN-2
18-07-1996INES 1Erroneous line-up before start-up of vent pipe valves to the scrubber systemFORSMARK-1
13-08-1996INES 1Water leak into a hot cell at the Studsvik research establishmentStudsvik Nuclear AB
12-06-1996INES 1Degraded pressure subpression (PS) functionBARSEBECK-2
04-03-1996INES 1FAILURE OF A CONTAINMENT ISOLATION VALVE AT A PERIODICAL TESTOSKARSHAMN-1
21-01-1996INES 1A PART OF THE RESIDUAL HEAT REMOVAL SYSTEM - THE AUXILIARY CONDENSER - TEMPORARILY NOT AVAILABLEOSKARSHAMN-1
15-11-1995INES 1DEVIATION FROM TECHNICAL SPECIFICATIONSRINGHALS-4
26-08-1995INES 1DESIGN DEFICIENCIES IN DIESEL GENERATORS FOUND DURING EXTENDED TESTINGOSKARSHAMN-1
01-01-1995INES 1DESIGN DEFICIENCIES IDENTIFIED IN SEPARATION OF ELECTRICAL SYSTEM, AVOIDANCE OF COMMON CAUSE FAILURES IN THE REACTOR PROTECTION SYSTEM AND OVERPRESSURE RELEASE IN THE AUX BUILD.OSKARSHAMN-1
01-01-1995INES 0CRACKS IN THE REACTOR CORE SHROUD IN THE LID OF THE SHROUD AND IN REACTOR VESSEL INTERNALSOSKARSHAMN-1
19-10-1995INES 2OVEREXPOSURE OF A WORKER AT THE RESEARCH REACTOR R2-0 IN STUDSVIK AT UPPSALA UNIVERSITY'S NEUTRON RESEARCH FACILITYR2 STUDSVIK
15-07-1995INES 1ONE CLOSED VALVE IN THE CONTAINMENT PRESSURE RELIEF LINE TO THE ATMOSPHERE AND TWO CLOSED VALVES IN THE VENTING LINE TO THE EMERGENCY FILTERFORSMARK-2
10-07-1995INES 1UNINTENTIONAL RELEASE TO THE SEA OF A MINOR AMOUNT OF SLIGHTLYCONTAMINATED WATERBARSEBECK-1
28-05-1995INES 1ROUTINE SURVEILLANCE REVEALS: STEAM GENERATOR SAFETY VALVES OPEN AT HIGHER PRESSURE THAN SPECIFIED AT THE RINGHALS 2. 3 AND 4 PWRSRINGHALS-2
31-03-1995INES 0CRACKS IN PUMP AND VALVE CASINGSOSKARSHAMN-1