ML20308A412

Ile Form ES-301-2

ML20308A412
Person / Time
Site:	Dresden
Issue date:	07/13/2020
From:	Exelon Generation Co
To:	Chuck Zoia NRC/RGN-III/DRS/OLB
Zoia C
Shared Package
ML19121A250	List: ML20295A408 ML20295A434 ML20295A440 ML20308A402 ML20308A412 ML20308A415 ML20308A418 ML20308A424
References
Download: ML20308A412 (1)

Text

ES-301 Control Room/In-Plant Systems Outline Form ES-301-2 Facility: Dresden Generating Station Date of Examination: 6/8/2020 Exam Level: RO SRO-I SRO-U Operating Test Number: 2020-301 Control Room Systems:* 8 for RO, 7 for SRO-I, and 2 or 3 for SRO-U Safety System/JPM Title Type Code*

Function

a. 211000.A4.08 4.2/4.2 - SBLC - Injection with Pump and RWCU Failures (AP) A, D, EN, S 1

c. 295025 G.2.4.6 3.7/4.7 - GLAND SEAL - Alternate Depressurization using Gland Seal N, E, L, S 3

d. 245000.K6.05 2.9/2.9 - TURBINE AUXILIARY - Swap Stator Cooling Pumps with A, N, E, S 4 Failure of PCV (AP)

e. 262001.A4.04 3.6/3.7 - AUX POWER - Transfer Aux Power D, P, S 6

f. 215004.A4.04 3.2/3.2 - NI - Withdraw SRM Detectors with a Stuck SRM Detector (AP) A, D, L, S 7

g. 400000.A4.01 3.1/3.0 - RBCCW - SWAP RBCCW PUMPS with Pump Trip (AP) A, D, P,S 8

h. 261000.A4.02 3.1/3.1 - SBGT - Start Standby Gas Treatment D, EN,S 9 In-Plant Systems:* 3 for RO, 3 for SRO-I, and 3 or 2 for SRO-U

i. 295028.EA1.03 3.9/3.9 - CONTAINMENT - Bypass Drywell Cooler Trip D, E, EN, P 5

j. 264000 G.2.1.20 4.6/4.6 - EDG - Swapping 2/3 EDG Cooling Water Flow (AP) A, D, EN, R 8

k. 239002.A2.03 4.1/4.2 - MAIN STEAM - Take Action for a Failed Relief Valve D, E, R 3

• All RO and SRO-I control room (and in-plant) systems must be different and serve different safety functions, all five SRO-U systems must serve different safety functions, and in-plant systems and functions may overlap those tested in the control room.

• Type Codes Criteria for R /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