ML15212A242
| ML15212A242 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 07/24/2015 |
| From: | Clark J Exelon Corp |
| To: | Nicholas Difrancesco Japan Lessons-Learned Division |
| References | |
| Download: ML15212A242 (13) | |
Text
NRR-PMDAPEm Resource From: Clark, Jeffrey S.:(GenCo-Nuc) [Jeffrey.Clark2@exeloncorp.com]
Sent: Friday, July 24, 2015 6:15 PM To: DiFrancesco, Nicholas Cc: Wyman, Stephen; Shams, Mohamed; Hughey, John; Marshall, Michael; Aggarwal, Vinod K:(GenCo-Nuc); Distel, David J:(GenCo-Nuc); Behrend, Chuck L.:(GenCo-Nuc); Ho, Wing:(GenCo-Nuc); Ritter Jr, Ralph R:(GenCo-Nuc); Lonsdale, Thomas S; Dunsmuir, Steven P:(GenCo-Nuc)
Subject:
[External_Sender] RE: Clarifying Questions for the Oyster Creek ESEP Report Attachments: Oyster Creek ESEP NRC Question Response FINAL 7-24-15.docx Mr. DiFrancesco, In response to your initial email request below, Exelon is pleased to provide you with the attached response to your question on the Oyster Creek ESEP Report submittal. Based on our previous discussions we are providing you this information on our revised date of July 24, 2015, as accepted below. Please feel free to contact us with any further questions or clarifications needed to support the NRCs ESEP report reviews.
Thank You, Jeff Clark Jeffrey S. Clark, PE Fukushima Response Seismic Lead 630-657-3876 (Work) 224-419-1450 (cell)
From: DiFrancesco, Nicholas [1]
Sent: Monday, July 13, 2015 7:40 AM To: Clark, Jeffrey S.:(GenCo-Nuc)
Cc: Wyman, Stephen; Shams, Mohamed; Hughey, John
Subject:
[EXTERNAL] RE: Clarifying Questions for the Oyster Creek ESEP Report
- Jeff, Understand that this request will require additional time. Appreciate the update.
- Thanks, Nick From: Clark, Jeffrey S.:(GenCo-Nuc) [2]
Sent: Friday, July 10, 2015 5:57 PM To: DiFrancesco, Nicholas; Wyman, Stephen Cc: Devlin-Gill, Stephanie; Wyman, Stephen; Hughey, John; 50.54f_Seismic Resource; Ho, Wing:(GenCo-Nuc); Aggarwal, Vinod K:(GenCo-Nuc); Distel, David J:(GenCo-Nuc); Ritter Jr, Ralph R:(GenCo-Nuc); Gaston, Ronald:(GenCo-Nuc);
1
Behrend, Chuck L.:(GenCo-Nuc)
Subject:
[External_Sender] RE: Clarifying Questions for the Oyster Creek ESEP Report Mr. DiFrancesco / Mr. Wyman, As discussed earlier in the week with Mr. DiFrancesco, the Oyster Creek response effort for the NRC question we received on June 15, 2015 (below), identified the need to perform additional seismic evaluations on 15 reactor recirculating system valves to confirm their ability to close following a Ground Motion Response Spectra (GMRS) level seismic event in support of the Oyster Creek FLEX implementation strategies. The additional effort will require approximately 2 additional weeks to resolve. Based on progress to date, we are anticipating a July 24th, 2015 response to your question below. We apologize for the delay from our previously agreed date of July 10th, 2015. Please confirm that the revised July 24th, 2015 completion date is acceptable.
Please feel free to call me with any additional questions you may have.
Thank You, Jeff Clark Jeffrey S. Clark, PE Fukushima Response Seismic Lead 630-657-3876 (Work) 224-419-1450 (cell)
From: Clark, Jeffrey S.:(GenCo-Nuc)
Sent: Monday, June 29, 2015 4:38 PM To: 'DiFrancesco, Nicholas'; Wyman, Stephen (Stephen.Wyman@nrc.gov)
Cc: Devlin-Gill, Stephanie; Wyman, Stephen; Hughey, John; 50.54f_Seismic Resource; Ho, Wing:(GenCo-Nuc); Aggarwal, Vinod K:(GenCo-Nuc); Distel, David J:(GenCo-Nuc); Ritter Jr, Ralph R:(GenCo-Nuc)
Subject:
RE: Clarifying Questions for the Oyster Creek ESEP Report Mr. DiFrancesco / Mr. Wyman, Based on progress to date, we are anticipating a July 10th, 2015 response to your Oyster Creek question below. We are making good progress to date, but need some additional time due to the scope involved. We apologize for the delay from your requested date of June 30th, 2015. Please confirm that a July 10th, 2015 target date is acceptable.
Thank You, Jeff Clark Jeffrey S. Clark, PE Exelon Fukushima Response Seismic Lead 630-657-3876 (Work) 224-419-1450 (cell)
From: DiFrancesco, Nicholas [3]
Sent: Monday, June 15, 2015 2:41 PM To: Distel, David J:(GenCo-Nuc); Clark, Jeffrey S.:(GenCo-Nuc)
Cc: Devlin-Gill, Stephanie; Wyman, Stephen; Hughey, John; 50.54f_Seismic Resource
Subject:
[EXTERNAL] Clarifying Questions for the Oyster Creek ESEP Report 2
Mr. Distel and Mr. Clark, As mentioned, as part of the NRC review of the Oyster Creek ESEP report, the staff would appreciate clarification on the following technical items:
- 1. By letter dated December 19, 2014 (ADAMS Accession No. ML14353A332), Exelon Generating Company submitted the Oyster Creek Expedited Seismic Evaluation Process Report which concluded that it is not required to review all Expedited Seismic Equipment List [ESEL] components at the Ground Motion Response Spectra (GMRS) demand level. Please confirm that all components contained in Table A-1 Oyster Creek ESEL have demonstrated capacity at or above the GMRS demand level.
An email or letter response is sufficient to support the ESEP report review. A response around June 30, if practicable, would be greatly appreciated to support the established review schedule. An email response will be added to public ADAMS.
Please let me or Steve Wyman (at 301-415-3041) know if you would like to schedule a clarification call or any have questions.
- Thanks, Nick Senior Project Manager - Seismic Reevaluation Activities U.S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Japan Lesson Learned Project Division nicholas.difrancesco@nrc.gov l Tel: (301) 415-1115 This Email message and any attachment may contain information that is proprietary, legally privileged, confidential and/or subject to copyright belonging to Exelon Corporation or its affiliates ("Exelon"). This Email is intended solely for the use of the person(s) to which it is addressed. If you are not an intended recipient, or the employee or agent responsible for delivery of this Email to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this Email is strictly prohibited. If you have received this message in error, please immediately notify the sender and permanently delete this Email and any copies.
Exelon policies expressly prohibit employees from making defamatory or offensive statements and infringing any copyright or any other legal right by Email communication. Exelon will not accept any liability in respect of such communications. -EXCIP 3
Hearing Identifier: NRR_PMDA Email Number: 2263 Mail Envelope Properties (9717B5461B966646BAF3352111206D75793B0DFA)
Subject:
[External_Sender] RE: Clarifying Questions for the Oyster Creek ESEP Report Sent Date: 7/24/2015 6:15:09 PM Received Date: 7/24/2015 6:15:15 PM From: Clark, Jeffrey S.:(GenCo-Nuc)
Created By: Jeffrey.Clark2@exeloncorp.com Recipients:
"Wyman, Stephen" <Stephen.Wyman@nrc.gov>
Tracking Status: None "Shams, Mohamed" <Mohamed.Shams@nrc.gov>
Tracking Status: None "Hughey, John" <John.Hughey@nrc.gov>
Tracking Status: None "Marshall, Michael" <Michael.Marshall@nrc.gov>
Tracking Status: None "Aggarwal, Vinod K:(GenCo-Nuc)" <Vinod.Aggarwal@exeloncorp.com>
Tracking Status: None "Distel, David J:(GenCo-Nuc)" <David.Distel@exeloncorp.com>
Tracking Status: None "Behrend, Chuck L.:(GenCo-Nuc)" <chuck.behrend@exeloncorp.com>
Tracking Status: None "Ho, Wing:(GenCo-Nuc)" <Wing.Ho@exeloncorp.com>
Tracking Status: None "Ritter Jr, Ralph R:(GenCo-Nuc)" <ralph.ritter@exeloncorp.com>
Tracking Status: None "Lonsdale, Thomas S" <Thomas.Lonsdale@exeloncorp.com>
Tracking Status: None "Dunsmuir, Steven P:(GenCo-Nuc)" <Steven.Dunsmuir@exeloncorp.com>
Tracking Status: None "DiFrancesco, Nicholas" <Nicholas.DiFrancesco@nrc.gov>
Tracking Status: None Post Office: EXCHM-OMF-25.exelonds.com Files Size Date & Time MESSAGE 6012 7/24/2015 6:15:15 PM Oyster Creek ESEP NRC Question Response FINAL 7-24-15.docx 38778 Options Priority: Standard Return Notification: No Reply Requested: Yes Sensitivity: Normal Expiration Date:
Recipients Received:
RESPONSE TO QUESTION FROM NRC ON ESEL ITEMS MEETING GMRS The Oyster Creek Seismic Hazard and Screening Submittal Report dated March 31, 2015 (ML14090A241) concluded that the Safe Shutdown Earthquake (SSE) envelops the Re-evaluated seismic hazard (GMRS) except at frequenciesbelow 1.9 Hz (Low Frequency exceedance), and at frequencies between 18 and 70 Hz (High Frequency exceedance).
The attached table, Oyster Creek ESEL and Associated Seismic Evaluations, lists the seismic evaluation documents for the components on the ESEL provided in Table A-1 of the Oyster Creek ESEP Submittal Reportdated December 19, 2014 (ML14353A332). These documents demonstrate that all non-high frequency susceptible components on the ESEL have seismic capacities at or above the GMRS level, with the exception of three instrument air regulating valves (items 86, 87 and 88). These valves are not required to implement the FLEX strategies. These valves support venting of the containment which is not required based on MAAP Analysis to Support FLEX Initial Strategy, OC-MISC-010, Rev. 1 dated June 9, 2015. The Oyster Creek FLEX strategies will be revised to exclude venting in the next 6-month update to the Overall Integrated Plan.
The only component that is susceptible to damage from low frequency spectral accelerations is the Diesel Generator Fuel Oil Storage Tank (ESEL item 43) which has been evaluated to the GMRS demand level and is documented in the Oyster Creek ESEP Submittal Report. To address the High Frequency exceedance, Exelon committed under Commitment 2 in Enclosure 2 of the Seismic Hazard and Screening submittal to perform a High Frequency Confirmation evaluation.
Since the low frequency item has been addressed in the ESEP Submittal Report, and the High Frequency exceedanceitems are being trackedwith an NRC commitment forfurther evaluation in the future, the components on the ESEL will all be considered for the GMRS seismic demand level. Further, the near endorsed DRAFT EPRI 3002004396 - HF Application Guidance states For the High Frequency Confirmation, these types of minor exceedances over limited frequency rangesdo not represent a significant high frequency concern and can be screened from further component evaluations. Given the limited high frequency exceedance of the GMRS to the SSE, it is expected that Oyster Creek will be screened from further component evaluations.
Oyster Creek ESEL and Associated Seismic Evaluations ESEL Equipment Operating State Associated Item Normal Desired Notes Seismic Number ID Description Evaluations State State 1 USS 1A2 480VAC Vital Reactor Bldg Bus A In Service In Service SQUG Report1 Power to Recirculation Loop Isolation 2 MCC 1A21 In Service In Service SQUG Report1 Valves Power to Recirculation Loop Isolation 3 MCC 1A21A In Service In Service SQUG Report1 Valves 4 VMCC 1A2 Vital Motor Control Center 1A2 In Service In Service SQUG Report1 C Station Battery Solid State Static 5 BTCHG C1 In Service In Service SQUG Report1 Charger C1 6 Battery Bank C Vital Bank C Station Battery In Service In Service SQUG Report1 7 DC-C 125V 125VDC Distribution Center C In Service In Service SQUG Report1 Isolation Condenser, Core Spray 8 DC-F 125VDC Power Panel DC-F In Service In Service SQUG Report1 and EMRV control/logic power 125VDC Motor Control CTR for 9 DC-2 125VDC In Service In Service SQUG Report1 Reactor Building Technical In Service as Passive 10 CD-14-1B B Isolation Condenser (NE01B) Standby Evaluation required component A2326264-896 The indicator for this Technical B Isolation Condenser Shell Level 11 LT-IG0006B In Service In Service transmitter is Evaluation XMITR located in A2326264-874 panel 1F/2F B Isolation Condenser Local Shell Mechanical 12 LI-211-1215 In Service In Service Test Report3 Level Indication instrument B Isolation Condenser Condensate 13 V-14-35 Closed Open/Closed SQUG Report1 Return Valve 14 USS 1B2 480VAC Vital Reactor Bldg Bus B In Service In Service SQUG Report1 15 VMCC 1B2 Vital Motor Control Center 1B2 In Service In Service SQUG Report1 Vital Motor Control Center 1AB2 ATS 1AB2 is 16 VMCC 1AB2 (Recirculation Pump Isolation Valve In Service In Service contained in SQUG Report1 Power) VMCC 1AB2 Power to Recirculation Loop Isolation 17 MCC 1B21A In Service In Service SQUG Report1 Valves Power to Static Charger and 18 MCC 1B21 In Service In Service SQUG Report1 Recirculation Pump Isolation Valves Technical A/B Station Batteries Solid State Static 19 STATIC CHGR In Service In Service Evaluation Charger A2326264-874
Oyster Creek ESEL and Associated Seismic Evaluations ESEL Equipment Operating State Associated Item Normal Desired Notes Seismic Number ID Description Evaluations State State Vital Bank B Station Battery (Lead 20 Battery Bank B In Service In Service SQUG Report1 Acid) 21 DC-B 125V 125VDC Distribution Panel B In Service In Service SQUG Report1 Isolation Condenser, Core Spray 22 DC-D 125VDC Power Panel D In Service In Service SQUG Report1 and EMRV control/logic power ATS DC-1 is 125VDC Isolation Valves Motor 23 DC-1 125VDC In Service In Service contained in SQUG Report1 Control Center MCC DC-1 Technical In Service as Passive 24 CD-14-1A A Isolation Condenser (NE01A) Standby Evaluation required component A2326264-896 The indicator for this Technical A Isolation Condenser Shell Level 25 LT-IG0006A In Service In Service transmitter is Evaluation XMITR located in A2326264-874 panel 1F/2F A Isolation Condenser Local Shell Mechanical 26 LI-211-1214 In Service In Service Test Report3 Level Indication Indicator A Isolation Condenser Condensate 27 V-14-34 Closed Open/Closed SQUG Report1 Return Valve AC powered valve which Core Spray to Reactor Parallel Valve will be 28 V-20-15 Closed Open SQUG Report1 System 1 manually operated during ELAP Contains separately powered PT-29 RK-3 Instrument Rack 03 In Service In Service SQUG Report1 IP0007 instrument transmitter Transmitter mounted on In Service 30 PT-IP0007 Containment Pressure Transmitter In Service Instrument Rack Phase 2
- 03. See SQUG Report for RK-31 MCR Control Reactor & Drywell 31 1F/2F In Service In Service SQUG Report1 Cooling Panel
Oyster Creek ESEL and Associated Seismic Evaluations ESEL Equipment Operating State Associated Item Normal Desired Notes Seismic Number ID Description Evaluations State State Contains separately 32 5F/6F Main Control Room Panel 5F/6F In Service In Service powered SQUG Report1 instrument indicators Contains power supplies for, and 33 RSP Remote Shutdown Panel In Service In Service SQUG Report1 elements of, credited instruments Monitors 34 16R Containment H2/02 Panel In Service In Service containment SQUG Report1 parameters Contains Main Control Room Panel 18R 35 18R In Service In Service instruments SQUG Report1 Reactor Protection from the IOP Routes power to panel 12XR 36 11F MCR Panel 11F In Service In Service SQUG Report1 via internal fuse 6F7 Drywell N2 Purge Valve/Containment 37 V-23-13 In Service In Service SQUG Report1 Isolation Valve for Hardened Vent Drywell N2 Purge Valve/Containment 38 V-23-14 In Service In Service SQUG Report1 Isolation Valve for Hardened Vent Torus N2 Purge Valve/Containment 39 V-23-15 In Service In Service SQUG Report1 Isolation Valve for Hardened Vent Torus N2 Purge Valve/Containment 40 V-23-16 In Service In Service SQUG Report1 Isolation Valve for Hardened Vent The indicator for this Technical Reactor Fuel Zone Level Wide Range 41 DPT-622-1009 Standby In Service transmitter is Evaluation I Transmitter (Channel C) located in A2326264-874 panel 5F/6F The indicator for this Technical Reactor Wide Range Pressure 42 PT-622-1018 Standby In Service transmitter is Evaluation Transmitter (Channel C) located in A2326264-874 panel 5F/6F ESEP Submittal Diesel Generator Fuel Oil Storage Passive dated December 43 T-39-2 Standby Standby Tank Component 19, 2014 (ML14353A332)
Technical Reactor Recirculation Pump NG01-A-44 V-37-09 Open Closed Evaluation Suction Isolation Valve A2326264-885
Oyster Creek ESEL and Associated Seismic Evaluations ESEL Equipment Operating State Associated Item Normal Desired Notes Seismic Number ID Description Evaluations State State Technical Reactor Recirculation Pump NG01-A 45 V-37-10 Open Closed Evaluation Discharge Isolation Valve A2326264-885 Reactor Recirculation Loop 'A' Bypass Technical 46 V-37-11 Open Closed Evaluation Valve NG08-A A2326264-885 Reactor Recirculation Pump NG01-B Technical 47 V-37-20 Open Closed Evaluation Suction Isolation Valve A2326264-885 Reactor Recirculation Pump NG01-B Technical 48 V-37-21 Open Closed Evaluation Discharge Isolation Valve A2326264-885 Reactor Recirculation Loop 'B' Bypass Technical 49 V-37-22 Open Closed Evaluation Valve NG08-B A2326264-885 Reactor Recirculation Pump NG01-C Technical 50 V-37-31 Open Closed Evaluation Suction Isolation Valve A2326264-885 Reactor Recirculation Pump NG01-C Technical 51 V-37-32 Open Closed Evaluation Discharge Isolation Valve A2326264-885 Reactor Recirculation Loop 'C' Bypass Technical 52 V-37-33 Open Closed Evaluation Valve NG08-C A2326264-885 Reactor Recirculation Pump NG01-D Technical 53 V-37-42 Open Closed Evaluation Suction Isolation Valve A2326264-885 Reactor Recirculation Pump NG01-D Technical 54 V-37-43 Open Closed Evaluation Discharge Isolation Valve A2326264-885 Reactor Recirculation Loop 'D' Bypass Technical 55 V-37-44 Open Closed Evaluation Valve NG08-D A2326264-885 Reactor Recirculation Pump NG01-E Technical 56 V-37-53 Open Closed Evaluation Suction Isolation Valve A2326264-885 Reactor Recirculation Pump NG01-E Technical 57 V-37-54 Open Closed Evaluation Discharge Isolation Valve A2326264-885 Reactor Recirculation Loop 'E' Bypass Technical 58 V-37-55 Open Closed Evaluation Valve NG08-E A2326264-885 Contains elements of 59 LSP-1AB2 Local Shutdown Panel Standby Standby SQUG Report1 control for valve V-37-54
Oyster Creek ESEL and Associated Seismic Evaluations ESEL Equipment Operating State Associated Item Normal Desired Notes Seismic Number ID Description Evaluations State State Contains control switches for recirculation pump valves.
60 3F Panel In Service In Service Valve control SQUG Report1 power provided from MCC via internal control transformer Provides 120V AC Vital Power Distribution power for 61 IP-4 In service In service SQUG Report1 Panel credited instruments Provides power for 120V AC vital 62 IT-4 Automatic Transfer Switch In Service In Service SQUG Report1 power distribution panel IP-4 Provides power for 63 IT-4B Transformer In Service In Service automatic SQUG Report1 transfer switch IT-4 Contains power supplies for, and 64 10R Panel In Service In Service elements of, SQUG Report1 credited instrumentatio n
Contains power supplies for, and SQUG Report 65 ER-622-080 Panel In Service In Service elements of, SQ-OC-622-0011 credited instrumentatio n
Provides power for 66 ATS DC-D Automatic Transfer Switch In Service In Service 125V DC SQUG Report1 distribution panel DC-D
Oyster Creek ESEL and Associated Seismic Evaluations ESEL Equipment Operating State Associated Item Normal Desired Notes Seismic Number ID Description Evaluations State State Relay seismic Isolation Condenser Valve Hi Flow CR120AD042 functionality 67 6K3A Energized Energized Isolation Logic 41AA relay review and evaluation2 Relay seismic Isolation Condenser Valve Hi Flow CR120AD042 functionality 68 6K3B Energized Energized Isolation Logic 41AA relay review and evaluation2 Relay seismic Isolation Condenser Valve Hi Flow CR120AD042 functionality 69 6K5A Energized Energized Isolation Logic 41AA relay review and evaluation2 Relay seismic Isolation Condenser Valve Hi Flow CR120AD042 functionality 70 6K5B Energized Energized Isolation Logic 41AA relay review and evaluation2 Relay seismic Isolation Condenser Valve Hi Flow CR120AD042 functionality 71 6K4A Energized Energized Isolation Logic 41AA relay review and evaluation2 Relay seismic Isolation Condenser Valve Hi Flow CR120AD042 functionality 72 6K4B Energized Energized Isolation Logic 41AA relay review and evaluation2 Relay seismic Isolation Condenser valve Hi Flow CR120AD042 functionality 73 6K6A Energized Energized Isolation Logic 41AA relay review and evaluation2 Relay seismic Isolation Condenser Valve Hi Flow CR120AD042 functionality 74 6K6B Energized Energized Isolation Logic 41AA relay review and evaluation2 27s Time Delay Drop- Relay seismic Isolation Condenser Valve Hi Flow Out Relay functionality 75 6K7A Energized Energized Isolation Logic Model review and 700RTC11200 evaluation2 U1 27s Time Delay Drop- Relay seismic Isolation Condenser Valve Hi Flow Out Relay functionality 76 6K7B Energized Energized Isolation Logic Model review and 700RTC11200 evaluation2 U1 27s Time Delay Drop- Relay seismic Isolation Condenser Valve Hi Flow Out Relay functionality 77 6K8A Energized Energized Isolation Logic Model review and 700RTC11200 evaluation2 U1
Oyster Creek ESEL and Associated Seismic Evaluations ESEL Equipment Operating State Associated Item Normal Desired Notes Seismic Number ID Description Evaluations State State 27s Time Delay Drop- Relay seismic Isolation Condenser Valve Hi Flow Out Relay functionality 78 6K8B Energized Energized isolation logic Model review and 700RTC11200 evaluation2 U1 Back-Up Air Supply Accumulator for Passive Technical 79 Y-6-42 Functional Functional Evaluation Valve V-23-0013 Component A2326264-874 Back-Up Air Supply Accumulator for Passive Technical 80 Y-6-43 Functional Functional Evaluation Valve V-23-0014 Component A2326264-874 Back-Up Air Supply Accumulator for Passive Technical 81 Y-6-44 Functional Functional Evaluation Valve V-23-0015&16 Component A2326264-874 Pilot Solenoid Air Supply Valve for V- Technical 82 V-6-953 De-Energized Energized Evaluation 23-0015 A2326264-874 Pilot Solenoid Air Supply Valve for V- Technical 83 V-6-954 De-Energized Energized Evaluation 23-0016 A2326264-874 Pilot Solenoid Air Supply Valve for V- Technical 84 V-6-902 De-Energized Energized Evaluation 23-0013 A2326264-874 Pilot Solenoid Air Supply Valve for V- Technical 85 V-6-903 De-Energized Energized Evaluation 23-0014 A2326264-874 McMaster-Carr Not required to Supply Co, 86 V-6-950 Instrument Air Regulating Valve Functional Functional implement FLEX 382M, Model:
strategies7 4959K1 McMaster-Carr Not required to Supply Co, 87 V-6-899 Instrument Air Regulating Valve Functional Functional implement FLEX 382M, Model:
strategies7 4959K1 Fisher Controls Not required to 88 V-6-898 Instrument Air Regulating Valve Functional Functional International implement FLEX LLC Model strategies7 67CFR-239 89 CIP-3 Continuous Instrument Panel No. 3 Energized Energized SQUG Report1 ROTARY 120V AC Supply for CIP-3 208/120V, 90 Energized Energized SQUG Report1 INVERTER 3PH, 4W
Oyster Creek ESEL and Associated Seismic Evaluations ESEL Equipment Operating State Associated Item Normal Desired Notes Seismic Number ID Description Evaluations State State Contains PNL-822-12XRCS1 Key lock bypass switch for purge 91 12XR Panel In Service In Service SQUG Report1 valves, bypasses Isolation relays for hardened vent valves 92 IT-3 Automatic Transfer Switch In Service In Service SQUG Report1 Notes:
- 1) SQUG Report denotes walkdown report prepared in accordance with the SQUG-GIP methodology. The title of the report is typically SQ-OC-(Equipment ID). The seismic demand used was based on the SSE*.
- 2) Relay seismic functionality review and evaluation denotes Report TDR 1149, Rev. 6, Relay Seismic Functionality Review and Calculation C-1302-900-5320-011, Rev. 5, USI A46 Resolution Essential Relay Evaluation. The seismic demand used was based on the SSE*.
- 3) Test Report denotes Trentec Report No.: 7T371.0, Rev. 1 associated with ECR 07-00154, Rev. 1. The seismic demand used was based on the SSE*.
- 4) Technical Evaluation A2326264-87: The seismic demand used was based on the GMRS*.
- 5) Technical Evaluation A2326264-88: The seismic demand used was based on the GMRS*.
- 6) Technical Evaluation A2326264-89: The seismic demand used was based on the GMRS*.
- 7) Not required to implement FLEX strategies denotes instrument air regulating valves that are not required to implement the FLEX strategies. These valves support venting of the containment which is not required based on MAAP Analysis to Support FLEX Initial Strategy, OC-MISC-010, Rev. 1 dated June 9, 2015. The FLEX strategies will be revised to exclude venting in the next 6-month update to the Overall Integrated Plan.
- Denotes the SSE and GMRS documented in the Oyster Creek Seismic Hazard and Screening Submittal, dated March 31, 2014 (ML14090A241).