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Provides evaluation method, status abd result on scale


Event Level 1 and above

Provides the event summaries of INES level 1 and above.

Event (Level2)

 

Event (Level1)

Event (Level1)
providing that Unit, Date of Event, Date of Event
Unit Date of Event Title
Hanul-2 1997-01-17
13:01
Reactor Trip due to Abnormality of Reactor Trip Breaker during Emergency Shutdown Logic Test
Hanul-1 1998-12-11
00:20
Manual Reactor Trip due to Leakage from NSCW Pipe
Hanbit-2 1999-03-23
23:51
Reactor Trip due to Condenser Dump Valve Failure
Kori-1 2000-11-17
20:43
Reactor Trip due to Unappropriate Testing Procedure
Hanul-4 2002-04-05
18:49
Safety Injection due to S/G Tube Leakage
Hanbit-5 2003-12-22
23:32
Radioactive Contamination of Demineralized Water Supply Header
Wolsong-1 2005-11-06
02:28
Reactor Containment Box-Up due to Spurious Actuation of R/G Room Sprinkler
Hanul-1 2006-05-07
21:44
Spurious Safety Injection during RCS Heatup
Hanul-2 2006-10-11
15:40
Entering into subcriticality due to fail-opening of the pressurizer spray valve and inappropriate defeat of automatic safety injection during RCS depressurization.
HanaroExcept 2006-10-23
03:30
Fire during the leak performance test preparation of HVAC filter bank at irradiated material examination facility
Wolsong-2 2009-09-03
10:08
Loss of Offsite Power and SDG Startup due to Opening of Switchyard Breaker
Kori-3 2011-04-19
13:43
Loss of Voltage on the Safety Bus and EDG Startup due to Human Error during Annual Overhaul
Kori-2 2011-06-21
10:30
Reactor trip due to reactor coolant pump shutdown
Hanul-6 2012-11-26
01:03
Inadequate safety injection during overhaul outage
Hanul-1 2013-01-17
11:19
Reactor trip due to power range high flux rate signal
Kori-4 2013-04-14
09:22
Reactor manual shutdown for removal of foreign material in secondary loop of S/G ‘A’
Kori-4 2013-04-14
11:34
Inadvertent safety injection during RCS cooldown
HanaroExcept 2013-11-06
00:00
Non-compliance of the operational technical specifications at irradiated material examination facility
Hanbit-2 2014-02-28
10:50
Reactor trip and SI actuation by inadequate opening of M-G set breaker
Wolsong-4 2014-06-17
10:30
Finding of penetration defect on pipe junction of steam relief valve during an overhaul
Hanbit-2 2014-10-01
13:57
LOV of safety bus and start-up of EDG caused by inappropriate work management in regards to the replacement of a high voltage circuit breaker during an overhaul
Hanbit-3 2014-10-17
02:09
Reactor trip during power reduction for maintenance of S/G tube leak
Kori-4 2015-09-03
19:55
Reactor trip by RCP ‘B’ trip due to damage of a surge protector
Hanbit-1 2016-02-27
05:15
Turbine/Reactor trip due to loss of condenser vacuum
Hanul-5 2016-12-20
08:00
Manual reactor trip for maintenance of heated junction thermocouple instrumentation flange assembly of reactor vessel
Kori-4 2017-03-28
05:11
Reactor coolant leakage at 1ry chamber drain valve of steam generator
Wolsong-3 2018-06-11
18:43
Reactor coolant leakage by mistake to control pressurizer drain valve
Wolsong-3 2019-01-21
08:58
Automatic Reactor Trip by Primary Heat Transport Pump #1 Trip due to Surge Capacitor Damage
Hanul-6 2020-07-19
12:05
Automatic Reactor Trip due to Two Reactor Coolant Pumps Trip
Kori-3 2021-07-12
06:12