ML21137A219
| ML21137A219 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 02/18/2021 |
| From: | Gregory Roach NRC/RGN-III/DRS/OLB |
| To: | FirstEnergy Nuclear Operating Co |
| Roach G | |
| Shared Package | |
| ML20136A251 | List: |
| References | |
| L-20-236 | |
| Download: ML21137A219 (1) | |
Text
ES-301 Control Room/In-Plant Systems Outline Form ES-301-2 Facility: Davis Besse Nuclear Power Station Date of Examination: 2/1/2021 to 2/5/2021 Exam Level: RO SRO(I) SRO(U) Operating Test No.: DB1LOT21 Control Room Systems@ (8 for RO); (7 for SRO-I); (2 or 3 for SRO-U)
Safety System / JPM Title Type Code*
Function A, D, E, EN, S1 006 / Establish long term boron dilution (006 A4.07) 2 L
S2 061 / Initiate and Isolate SFRCS and perform actions for an AFW A, N, E, L 4S Pump Trip (061 A2.04)
S3 012 / Place all four RPS Channels in Shutdown Bypass (012 A4.03) D, L 7 In-Plant Systems@ (3 for RO); (3 for SRO-I); (3 or 2 for SRO-U)
Safety System / JPM Title Type Code*
Function P1 064 / Energizing SBODG Auxiliaries (064 A2.12) A, E, D 6 P2 068 / Complete Primary RO Actions outside CTRM for Serious CTRM D, R 8 Fire (068 AA1.21)
@ All RO and SRO control room (and in-plant) systems must be different and serve different safety functions; all 5 SRO-U systems must serve different safety functions; in-plant systems and functions may overlap those tested in the control room.
- Type Codes Criteria for RO / SRO-I / SRO-U (A)lternate Path 4-6 / 4-6 / 2-3 (C)ontrol room (D)irect from bank 9/8/4 (E)mergency or abnormal in-plant 1/1/1 (EN)gineered safety feature 1 / 1 / > 1 (control room system)
(L)ow-power / Shutdown 1/1/1 (N)ew or (M)odified from bank including 1(A) 2/2/1 (P)revious 2 exams 3/ 3 / 2 (randomly selected)
(R)CA 1/1/1 (S)imulator NUREG-1021, Revision 11 Rev 1