Laka Foundation

Europe: Sweden

▸ Legenda & explanation
date INES title location
12-02-1995INES 1NOT FULLY INSERTED CONTROL RODSRINGHALS-3
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
10-07-1995INES 1UNINTENTIONAL RELEASE TO THE SEA OF A MINOR AMOUNT OF SLIGHTLYCONTAMINATED WATERBARSEBECK-1
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
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
26-08-1995INES 1DESIGN DEFICIENCIES IN DIESEL GENERATORS FOUND DURING EXTENDED TESTINGOSKARSHAMN-1
15-11-1995INES 1DEVIATION FROM TECHNICAL SPECIFICATIONSRINGHALS-4
21-01-1996INES 1A PART OF THE RESIDUAL HEAT REMOVAL SYSTEM - THE AUXILIARY CONDENSER - TEMPORARILY NOT AVAILABLEOSKARSHAMN-1
04-03-1996INES 1FAILURE OF A CONTAINMENT ISOLATION VALVE AT A PERIODICAL TESTOSKARSHAMN-1
12-06-1996INES 1Degraded pressure subpression (PS) functionBARSEBECK-2
13-08-1996INES 1Water leak into a hot cell at the Studsvik research establishmentStudsvik Nuclear AB
18-07-1996INES 1Erroneous line-up before start-up of vent pipe valves to the scrubber systemFORSMARK-1
01-07-1997INES 1Two out of four diesel generators unavailable due to loose connection to the voltage regulatorRINGHALS-2
16-05-1997INES 1Degraded containment pressure suppression function during shutdown of reactor before outage periodFORSMARK-2
17-08-1997INES 1Automatic protection system disconnected during non nuclear heat up after refuellingRINGHALS-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
30-05-2013INES 1EDG failed to start after unintentional loss of two phases on 400 kV incoming offsite supplyFORSMARK-3
01-06-1992INES 0REPAIR OF REACTOR PRESSURE VESSEL HEAD PENETRATIONRINGHALS-2
17-08-1992INES 0CRACKS IN FEED WATER NOZZLESRINGHALS-1
23-01-1993INES 0INSUFFICIENT CONTROL ROD FUNCTION DURING HOT START UP TESTRINGHALS-1
28-02-1993INES 0MINOR LEAKAGE IN A 32 MM VALVE BONNET SEALRINGHALS-1
02-03-1993INES 0MINOR LEAKAGE IN A 15 MM PIPE TO A PILOT VALVE IN THE PRESSURE RELIEF SYSTEMRINGHALS-1
09-07-1994INES 0RELEASE OF IODINE 131 FROM THE TURBINE SYSTEM AT RINGHALS 1RINGHALS-1
22-08-1994INES 0ONE CONTROL ROD NOT FULLY INSERTED AFTER SCRAMRINGHALS-4
09-04-1995INES 0UNSUCCESSFUL SWITCH OVER FROM 400 KV TO 130 KVRINGHALS-2
31-03-1995INES 0CRACKS IN PUMP AND VALVE CASINGSOSKARSHAMN-1
01-01-1995INES 0CRACKS IN THE REACTOR CORE SHROUD IN THE LID OF THE SHROUD AND IN REACTOR VESSEL INTERNALSOSKARSHAMN-1
25-02-1999INES 0Core instability occurred during maintenance performed in the switchyardOSKARSHAMN-2
20-09-2004INES 0Event at a Studsvik laboratory producing radioactive sourcesStudsvik Nuclear AB