Finding | |
|---|---|
| Title | Alert Declared Due to Electrical Fault Resulting in a Fire/Explosion |
| Description | The inspectors are opening a URI to facilitate prompt tracking, documentation, and closure of inspection, verification, and resolution activities, including enforcement action determinations, associated with the Alert declaration due to the electrical fault resulting in an explosion/fire in the Unit 1 BOP 4 kV switchgear bus area. The inspectors are opening a URI to review the root cause and determine if a performance deficiency exists. On February 7, 2015, operations personnel declared an Alert for Units 1 and 2, in accordance with Emergency Action Level HA 2.1 due to an explosion/fire in the Unit 1 BOP 4 kV switchgear bus area. A manual reactor SCRAM was initiated due to loss of both recirculation system variable speed drives as a result of an electrical fault. The SAT experienced a lockout fault; interrupting offsite power to emergency buses 1 and 2. EDGs 1, 2, 3, and 4 automatically started and EDGs 1 and 2 synchronized to emergency buses 1 and 2 per design. The licensee restored offsite power to the emergency buses and exited the NOUE. The licensee wrote NCR 1998726 to address this event. This issue is being tracked as a URI: URI 05000325/2016001-03; Alert Declared Due to Electrical Fault Resulting in a Fire/Explosion. |
| Site: | Brunswick  |
|---|---|
| Report | IR 05000325/2016001 Section 4OA3 |
| Date counted | Mar 31, 2016 (2016Q1) |
| Type: | URI: |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | B Collins G Hopper J Rivera M Catts M Schwieg W Loog Hopperm Catts M Schwieg |
| INPO aspect | |
| ' | |
Finding - Brunswick - IR 05000325/2016001 | |||||||||||||||||||||||||||||||||||
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Finding List (Brunswick) @ 2016Q1
Self-Identified List (Brunswick)
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