ML19092A155
| ML19092A155 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 03/11/2019 |
| From: | Wolf Creek |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19092A099 | List:
|
| References | |
| WO 19-0010 | |
| Download: ML19092A155 (20) | |
Text
FORM APF-OSD-001-02, REV. 12 Page 1 CALCULATION CHANGE NOTICE CCN NO. XX-E-013 004 CNOOS --------------------
Base Calc No. Rev No. Sequence No. CALCULATION TITLE -From CALCULATION TITLE field in EIS: Post-Fire Safe ShutdoWn (PFSSD) Analysis COMPUTER CODE: VERSION: Administrative?
I D YES NO I ASSOCIATED ENGINEERING CHANGE #: I 020021 REGULATORY DAttached Evaluation
D Requires a change to the USAR: e:J Does NOT require a change to the USAR ANY DOCUMENTS 0 YES If yes, enter: SWO #, or Condition Report #, if applicable.
IMPACTED? NO Status: 8 COMMITTED 0 FINAL D VOID 0 SUPERSEDED DigsigOrg
- 2. 8, 0.7 ORIG NA-Vendor Calculation ORIG Printed Name Date Printed Name Date NA Signature Signature QUALIFICATION REQUIRED:
E59280479 QUALIFICATION REQUIRED:
E59280479 DigsigVer 2.8, 0. 7 VERF William M. Wilkins 10/2/2018 VERF Printed Name Date Printed Name Date Signature Signature E59280479 QUALIFICATION REQUIRED:
E59280479 QUALIFICATION REQUIRED:
DigsigApp
- 2. 8, 0. 7 . APP Jeff Suter 10/02/2018 APP Printed Name Date Printed Name Date Signature Sianature DigsigCert 3.5 1. 75 DigsigCert 3.5 1. 75 Vendor supplied docum(;!nt-WCNOC PE Stamping is not required per WCNOC-162 Rev. 05, Section 8.1.13. RPE Certification (For ASME Section III Stress Reports/Design Reports, refer to AP OSD-001 for qualification requirements)
CALCULATION SUBJECT (Statement Of Problem) -Enter this in SUBJECT field in EIS: CP 020021 XNBOI replacement impact to revise relay designations for transformer protection features.
Additionally, discussion of load tap changer feature of new transformer included with clarification it is not PFSSD.
FORM APF-OSD-001-02, REV 12 Page 2 CALCULATION DATABASE INPUT CCN NO. ______ x_x __ -E __ __ ___ 004 CNOOS Base Calc No. Rev No. Sequence No. Link new systems to the calculation/CCN in EIS. Systems NB, MA Affected:
Develop relationships between interdependent calculations in EIS. Additional Calculations None Providing Input to this calculation:
Additional Calculations None Impacted by this calculation:
Develop relationships between the calculation/CCN and controlled reference documents in EIS. Additional None Controlled Documents Inputs to this calculation:
Additional None Controlled Documents Impacted by this calculation:
The reference documents listed below are those that cannot be linked to the calculation/CCN and shall be entered in the INDUSTRY REFERENCE field in EIS, e.g.' ASME Codes, ANSI Standards, letters, etc. Additional Other CP 020021, Enercon Calc. WCN-025-CALC-010 Reference Documents:
Link new components to the calculation/CCN in EIS. Additional Components:
None REFER TO DESKTOP GUIDE FOR PROCESSING CALCULATIONS IN EIS
FORM APF 050 001 02 REV 12 ---Page 3 LIST OF EFFECTIVE PAGES CCN NO. XX-E-013 -004 -CN005 Base Calc No. Rev No. Sequence No CCN Calc. CCN Calc. CCN Calc. CCN Calc. Page Page Page Page Page Page Page Page No. Affected No. Affected No. Affected No. Affected DVR/SCRN/
/DVR/SCRN
/DVR/SCRN
/DVR/SCRN Other /Other /Other /Other 1-3 None 4(Att. Appendix 1) 1; p63 I Appendix 2; p7 Appendix 4* , p4,24 OAR None ' '
FORM APF OSD 001 02 REV 12 ---Page 4 ATTACHMENT 1 CCN NO. XX-E-013 -004 -CN005 Base Calc No. Rev No. Sequence No Vendor calculation WCN-025-CALC-01 0, Rev 0 CALC NO. WCN-025-CALC-010 tlll ENERCON CALCULATION COVER SHEET REV.O 0 project. Ev-ery doy. PAGE NO. 1 of 8 UPDATE TO WCNOC CALCULATION XX-E-Client: WCNOC Title: 013, PFSSD ANALYSIS Project Identifier:
WCN-025 Item Cover Sheet Items Yes No 1 Does this calculation contain any open assumptions, including preliminary D information, that require confirmation? (If YES, identify the assumptions.)
2 Does this calculation serve as an "Alternate Calculation"? (If YES, identify the D design verified calculation.)
Design Verified Calculation No. __ 3 Does this calculation supersede an existing Calculation? (If YES, identify the D design verified calculation.)
Superseded Calculation No. --Scope of Revision:
Initial Issue Revision Impact on Results: This calculation documents the changes for the replacement of transformer XNB01. Study Calculation D Final Calculation Safety-Related D Non-Safety-Related (Print Name and Sign)
Date: 09/20/2018 Originator:
Robert N. Thomas Design Verifier 1 (Reviewer if NSR): Stacey Graybeal _dt--<Y Date: 09/20/2018 Dlgltdtly signed by Austin Tran 09/20/2018 Approver:
Austin Tran Date: .()5'00' Note 1: For non-safety-related calculation, design verification can be substituted by review. Page 1 of 8 1 1, ,,,,,,,, Digitally signed by ,,, siiN ,,, ,, 1>-\) ........... Austin Tran ' /c,ENS **.. "' :::' ./ v f2o **...
ON: cn=Austin Tran, f ( 26514 Services, ou,
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emarl:atran@enercon.c om, c-US
- t-0 ,, Date* 2018 09 20 ;,,StONA\.*
,,, ' . ' 111 1111' 18:11:21-05'00' CALCULATION CALC NO. WCN-025-CALC-01 0 REVISION STATUS SHEET f-@ ENERCON REV. 0 -
projtct Every c:ay. PAGE NO. 2 of8 CALCULATION REVISION STATUS REVISION DATE DESCRIPTION 0 09/20/2018 Initial Issue PAGE REVISION STATUS PAGE NO. REVISION PAGE NO. REVISION ALL 0 APPENDIX/ATTACHMENT REVISION STATUS APPENDIX NO. NO. OF REVISION ATTACHMENT NO. OF REVISION PAGES NO. !:ill:. PAGES NO. A 4 0 Page 2 of 8 g ENERCON project. £very dey TABLE OF CONTENTS Section
1.0 Purpose and Scope
2.0 Summary of Results and Conclusions 3.0 References 4.0 Assumptions 5.0 Design Inputs 6.0 Methodology 7.0 Calculations 8.0 Computer Software List of Appendices A -Markup Updates to XX-E-013 Page 3 of 8 CALC NO. REV. PAGE NO. WCN-025-CALC-006 0 3 of 8 Page No. 4 4 5 5 5 7 8 8 #of Pages 4 CALC NO. WCN-025-CALC-010 U ENERCON UPDATE TO WCNOC CALCULATION XX-E-013, PFSSD ANALYSIS REV. 0 proj<<.r. Eve;y day. PAGE NO. 4 of 8
1.0 Purpose and Scope
Wolf Creek is performing a systematic replacement of their large oil-filled transformers to address aging concerns and to implement design improvements in support of long term station operation.
The first transformer to be replaced is ESF transformer XNB01. DCP 020021 is replacing XNB01 and the new transformer will have a Load Tap Changer (LTC) to control the voltage supplied to 4.16kV bus NB01 even if the 13.8 kV input voltage level changes. The DCP is also replacing/deleting relays in the MA104F panel and the relays are addressed by XX-E-013.
The purpose of this calculation is to document the impact on Wolf Creek calculation XX-E-013 due to these changes. This calculation is non-safety related per the ENERCON requirements.
The Wolf Creek update will be considered "special scope" per the site requirements.
2.0 Summary of Results and Conclusions CSP 3.03 Attachment C Wolf Creek calculation XX-E-013 does not have any computations.
It is a document used to identify the components required to support the Post Fire Safe Shutdown (PFSSD) functions.
Based on the results of this calculation the addition of the LTC controls will not impact the PFSSD function of XNB01. Two overcurrent relays (287/T1 Phase B and Phase C) are removed from the calculation (287/T1 Phase A is replaced with one new relay to monitor all three phases). Also, components 263-1/T1, 263X-1/T1, 263-2/T1 and 263X-2/T1 are removed from the calculation.
New fault pressure trip relays 263FP K4A and 263FP K4B are added because they provide a trip input for breaker NB00112 (XNB01 input breaker to NB01). Cable 15NBK16AA supplies 125VDC to the sudden pressure monitor that contains the two relays at XNB01. Failure of this cable does not cause the relays to Page 4 of 8 Revision 2 CALC NO. WCN-025-CALC-010 g ENERCON UPDATE TO WCNOC CALCULATION XX-E-013, PFSSD ANALYSIS REV. 0 &cellence-Evetyproject.l'llf!tydO):
PAGE NO. 5 of 8 change state and cause a loss of power to XNB01. Therefore, cable 15NBK16AA is not a PSFFD related cable. Drawing E-1F9425 impacted by this change and will be revised by DCP 020021 via WIP-E-1 F9425-002-A-1.
The proposed changes to XX-E-013 as a result of DCP 020021 are acceptable.
3.0 References 3.1 Wolf Creek Calculation XX-E-013, PFSSD Analysis, Rev. 4 3.2 E-074-00007, Outline (Tran-Sealed), Rev. W09 3.3 DCP 020021, XNB01 Replacement, Rev. 0 3.4 E-1 F9425, Post Fire Safe .Shutdown Logic Diagram Support Function -Electrical, NB001 Off-Site Power Availability, Rev. 2 3.5 E-1 F991 0, Post Fire Safe Shutdown Fire Area Analysis, Rev. 15 3.6 E-022-00029, Relay Panels and Fabrication Details, (related to MA104F), Rev. W12 3.7 E-022-00043, Transformer Feeder Wiring (related to XNB01), Rev. W09 3.8 E-15000, Electrical Cable and Raceway List, Rev. 67 3.9 E-1R4431, Raceway Plan Turbine Building Area-3 EL. 2033'-0", Rev. 2 3.1 0 E-1 R4331, Raceway Plan Turbine Building Area-3 EL. 2000'-0", Rev. 1 3.11 E-1R4321, Raceway Plan Turbine Building Area-2 EL. 2000'-0", Rev. 2 3.12 E-1R4322, Exposed Conduit Turbine Building Area-2 EL. 2000'-0", Rev. 4 3.13 E-13NB1 0, Schematic Diagram 13.8kv XNB01 Breaker Rev. 3 4.0 Assumptions There are no assumptions used in the calculation.
5.0 Design Inputs CSP 3.03 Attachment C Page 5 of 8 Revision 2 CALC NO. WCN-025-CALC-010 g ENERCON UPDATE TO WCNOC CALCULATION XX-E-013, REV. 0 pto}ect. Every dQy. PFSSD ANALYSIS CSP 3.03 Attachment C PAGE NO. 6 of 8 Reviews of existing change notices against XX-E-013 were performed to determine if any of the documents impact the changes being performed by DCP 020021. Results are as follows:
- XX-E-013-004-CN001-VOID
- XX-E-013-004-CN002
-FINAL -DCP 14209 removes the HMCP breakers from MCC cubicles NG03DBF6 and NG04DBF6, which were added as PFSSD components in CCN XX-E-013-002-CN014 per DCP 13800. These breaker cubicles provide power and control functions for Train A and B emergency diesel generator room supply fan motors DCGM01A and DCGM01 B, respectively.
Due to breaker coordination issues, DCP 14209 will modify the power supply to supply 480 VAC power to the diesel generator room supply fan motors DCGM01A and DCGM01 B *directly from new load center breakers NG0308 and NG0408, respectively.
Breakers NG0308 and NG0408 will supply power to the fan control functions within NG03DBF6 and NG04DBF6, respectively.
Therefore, MCC cubicles NG03DBF6 and NG04DBF6 will remain as PFSSD components.
The changes per this update do not impact the evaluation performed by this calculation.
- XX-E-013-004-CN003
-COMMITTED
-Change Package 14658 is replacing cable from EDGs speed signal generators to the EDGs speed switches.
Appendices 1, 2 and 3 are updated to reflect these changes. The changes per this update do not impact the evaluation performed by this calculation.
- XX-E-013-004-CN004-FINAL-CP 15070 is changing the 120VAC source from system NG to NN for the control room ale unit inlet and exhaust dampers GKHZ0029A/B (Train A) & GKHZ0040A/B (Train B). Page 6 of 8 Revision 2 CALC NO. WCN-025-CALC-010 @ ENERCON UPDATE TO WCNOC CALCULATION XX:-E-013, REV. 0 &ctllence-Evtl')l project. £ve;yday.
PFSSD ANALYSIS PAGE NO. 7 of 8 The changes per this update do not impact the evaluation performed by this calculation.
6.0 Methodology This calculation is a tabulation of cables and components that are required to support the PFSSD power sources and functions.
XNB01 is a power source that is required to support the PFSSD functions.
The impact of the LTC controls on the PFSSD power supply function was reviewed and determined to not impact the PFSSD power supply function of XNB01. PFSSD components associated with XNB01 are listed in calculation XX-E-013.
Some of the components are being removed by DCP 020021. The calculation was reviewed and components 287ff1(8) and 287ff1(C) are removed from the plant and will be removed from the calculation.
Relay 287ff1(A) is changed to 287ff1(A,B,C) because the new digital relay monitors all three phases. Fault pressure monitors 263-1/T1 and 263-2/T1 are being removed from the plant and will be removed from the calculation.
Auxiliary relays 263X-1/T1 and 263X-2ff1 are being disconnected/ "abandoned-in-place" and will be removed from the calculation.
A new sudden pressure monitor at XNB01 contains trip relays that are used to trip the NB00112 ) breaker on a fault pressure signal, 263FP relays K4A and K4B. These relays will be added to the calculation.
The changes to the relays also impact drawing E-1 F9425. This drawing update will be addressed in DCP 020021 via WIP-E-1 F9425-002-A-1.
PK4115 via cable 15NBK16AA supplies 125VDC to the sudden pressure monitor. Failure of this power source or cable does not cause the relays to change state and loss of XNB01. Therefore, PK4115 and cable 15NBK16AA are not required for PFSSD. CSP 3.03 Attachment C Page 7 of 8 Revision 2 CALC NO. WCN-025-CALC-010 REV. 0 .....-..Fo._R..;;.M;.;.;A..;;.P..,.F_o.;;.;so.-o
..
..... 10------------r------;APPENDIX A PAGE 1 OF 4 APPENDIX 1 PFSSD FUNCTION EVALUATIONS (PFSSD SUPPORT) CALCULATION NO. REVISION NO. XX-E-013 4 Paqe 63 PA0210 is included in the PFSSD design because PA0210 control section provides control power for PA02. No PFSSD loads other than PA02 control power are supplied by PA0210. Off-site power availability requires that off-site power cables and cables associated with XNB01 and XNB02 protective relays remain free of fire damage. The power cables are associated with the circuit breakers in the preceding table. Off-site protective relays and potential transformers required for PFSSD are identified in Appendix 4 and Appendix 3. The above discussion addresses safety-related power required for post fire safe shutdown.
A limited number of components derive their power from non-safety related busses (PA01 and PA02). The non-safety related power is normally supplied from the unit auxiliary transformer (XMR02). On a failure of XMR02 or the power to XMR02, a fast bus transfer to the start-up transformer (XMR01) occurs. The power path from XMR02 is not included in the PFSSD design because the XMR01 power path is in the PFSSD design. Other than 480V MCCs, there are no other non-safety related PFSSD loads powered from PA01 and PA02. Controls required for off-site and on-site power are identified in Appendix 3. Forced cooling of ESF transformers XNB01 and XNB02 is not required for PFSSD. Each transformer has a cooled rating of 12 MVA and a forced air cooled rating of 16 MVA. The maximum design basis accident (DBA) load is approximately 6 MW which equates to 6 MVA assuming a power factor of 1 (actual power factor is between 0.8 and fO). Therefore, there is a 100% margin for the DBA loading for the self-cooled rating. PFSSD loading would be equal to or less than the DBA rating since some of the DBA loads are not credited for PFSSD (e.g. containment spray pumps and safety injection pumps). Therefore.
there is adequate justification for not including ESF transformer cooling in the PFSSD analysi Lower medium voltage-4.16KV components and rela s required for PFSSD are identified in Appendix 4 and Appendix 3. An evaluation of the potential for a fire-induced lo of off-site power is contained in Appendix 2. This evaluation identified the plant locations where a fire initiate oss of off-site power (loss of non-safety related power) could occur. Low Voltage System -480V XNB01 has a Load Tap Changer (LTC) that is used to maintain a set voltage level on the NB01 bus even though voltage level changes on the 13.8kV switchyard supply voltage may occur. This function is local to the transformer.
The power for the LTC controller is supplied from the 480VAC power supply to the transformer for auxiliary loads, such as fans. When operated in a "fixed tap" position (fixed tap setting by Operations) the transformer functions as a standard step down transformer and there are no new failure modes. When placed in the "automatic" mode of operation, the LTC controller monitors the 13.8 kV input and adjusts the tap changer position to maintain the NBO 1 voltage level at a set level. A failure of the main LTC controller would result in the LTC controls being shifted to the backup LTC controller and the Control Room being informed of the change via an alarm. A loss of 480VAC power to XNB01 will result in loss of power to the main and backup LTC controllers.
This would keep the tap setting at a fixed position (the same as the "fixed tap" operation) and the transformer functions as a standard step down transformer.
Therefore, a loss of power to the LTC controllers will not impact the PFSSD function of XNB01.
CALC NO. WCN-025-CALC-010 REV. 0 FORMAPF05D-001-0I,REV.10 APPENDIX A PAGE2 OF4 APPENDIX 2 CALCULATION NO. XX-E-013 LOSS OF OFF-SITE POWER EVALUATION REVISION NO. 4 Paqe 7 TABLE A OFF-SITE POWER AND EMERGENCY DIESEL GENERATOR CABLES CABLE ASSOCIATED BUS I DIESEL DESCRIPTION GENERATOR NB01 DGA NB02 DGB 14NEB02AH X Emergency Diesel Generator 8 14NE802AJ X Emergency Diesel Generator B 14NE802AL X Emergency Diesel Generator 8 14NE802AM X EmergencyDiesel Generator 8 14NEB02AN X Emergency Diesel Generator 8 14NE802AP X Emergency Diesel Generator 8 14NEB02AQ X Emergency Diesel Generator B 14NE802AR X Emergency Diesel Generator B 14NEB02AS X Emergency Diesel Generator 8 14NEB02AU X Emergency Diesel Generator B 14NEB02AV X Emergency Diesel Generator B 14NEB11AA X Emergency Diesel Generator B 14NEB11AB X
Diesel Generator 8 14NEB11AC X Emergency Diesel Generator 8 14NEB11AD X Emergency Diesel Generator B 14NEB11AF X
Diesel Generator B 14NEB11AG X Emergency Diesel Generator B 14NE811AJ X Emergency Diesel Generator B 14NEK13AA X Emergency Diesel Generator B 14NEK13AD X Emergency Diesel Generator B 14NEK13AE X Emergency Diesel Generator B I 14NEK13AH X Emergency Diesel Generator 8 14NEK13AJ X Emergency Diesel Generator B 15MRK10AA X XMR01 fault pressure switch 463-1fr"2 XMR01 fault pressure switch 463-2fT2 XMR01 fault pressure relay 463X-1fr2 XMR01 fault pressure relay 463X-2fT2 15MRK10AE X XMR01 Deluge Relay AR7 15MRK10AF X XMR01 Trip On PA0201 Phase Overcurrent 15MRM11AA XNB01 Fault X XMR01 Transformer Cooling 15MRM11AC Pressure Trip X XMR01 Lockout Relay Cooling and Oil Level "\.. Trips 15MRX01AG Monitor relays X\ XMR01 Phase Differential Relay 487/T1 15MRX01AL 263FP K4A and X \ XMR01 Neutral Ground Relay 251N-1fT1 K4B 1\ XMR01 Neutral Ground Relay 251 N-2fT1 15MRX01AN X \ XMR01 Feeder to PA0110 15N8A10AA X \ NB0112 Lockout Relay 286-1fr1 NB0212 Lockout Relay286-2fT1 15NBA10AC X XNB01 FaultPressure XNB01* Fauft,Pf'essure Relay 263XI1[r1 XNB01 Fault Pressure * * .1 XNB01.FaultRressure Relay 1 APPENDIX4 PFSSD RELAY LIST Relay 1D I S/G Relay Name Room
- Fire (Sorted by Relay Location I Relay ID) SSD I Sprtd X X CALC NO. WCN-025-CALC-010 REV. 0 APPENDIX A PAGE 3 OF 4 CALCULATION NO. XX-E-013 REVISION NO. _..1. Page4 OU\er Drawing APPENDIX4 PFSSD RELAY LIST Relay ID. ,
'Ham& '"iic,,,, c !KS26 4 [Safety Injection Master Relay jK713 I 4 jPressurizer High Pressure Relay (Sorted by Relay Location I Relay ID) Ro * . I Fire I Relay . I SSD I Sp. I . Hot. . I.'
- I Nonnal I . Alt *. ,
1 orn Area LOcation Fun . . .. Fun stdby *. ShdWn . *shdwn
- ShdWn ** One Une . . . 3605 I C-27 I SB032D I s I R, M, H I X 3601 I C-27 I SB032D M X X X X X E-138840 E-135805 CALC NO. WCN-025-CALC-010 REV. 0 APPENDIX A PAGE 4 OF 4 IIVI'II'IV, REVISION NO. __ 4 Page 24
'** *,: .logic Dlograin {E-lF) I v M-767-00374 I NK4416 M-767-00350 NN0412 M-767-00186 I NK4421 M-767-00189 NN0412 NK4416 88PCV0456A opens if K713 is energized.
XX-E*013-002-CN002 9432 1 o 9301 I 3 IK726 4 I Low-Low TAvG or I 3605 I C-27 I SB032D I R, H ABHS0064 in 'OFF/RESET' Relay X X -' E-13AB08 I M-767-00188 NK4416 NN0412 9103 I o IK727 4 .
TAVG or I 3605 r C:27 H ABHS0064 in 'OFF/RESET' Relay 11<728 4 JLow:[()Yif.vG or 1 3605 1 c-27 1 SB032D I R, H ABHS0064 in 'OFF/RESET' Relay IK734 4 I High-1 RCS Pressure Relay 3605 I C-27 I S8032D H IK740 4 !Safetylnj7 3605 I C-27 i S8032D H IK741 4 vw-Low 1 Level Relay 3605 I C-27 I SB032D H / jK811 J4 4 jBiock Test Relay 3605 j SB033A M X X X X X X X X -E-13AB11A I M-767-00188 I NK4416 E-13A8118 NN0412 E-13AB11C E-13A811C I M-767-00188 I NK4416 NN0412 -E-138812A I M-767-00186 I NG028CF2 E-1388128 M-767-00189 NG02BBF3 NN0412 NK4416 E-13EJ068 I M-767-00189 I NG028EF2 E-13SB05 NN0412 M-767-00189 NK4416 NG02BEF2 NN0412 NK4416 X I X I X I E-138840 ---NK4421 5 Fault Pressure Switch Relay 5 F au II Pressure Switch Relay Yard I --I XNB01 S R,M,H X X X I X I -I E-13NB10 Yard -XNB01 I263-1/T2 f\\1 6 IFaultPressureSwitchRelay Yard XNB02 l263-2if2***
- \I 6 !Fault Pressure Switch Relay Yard XNB02 (K48) I S R,M,H X X -E-13NB10 s s R,M,H I X X I X R,M,H l X X l X E-13NB11 E-13PA14 E-13N811 E-13PA14 PK6204 IPK4115 is connected to cable 15NBK16M.
This supplies power to the monitor that houses relays at jXNB01. PK4115 and associated cable 15NBK16M are not required for PFSSD. Loss of power or cable !failure will not cause a loss of XNB01. Mo3 1 o 9103 [ 0 92os 10 92os 1 o 92os 1 o 93o1 1 o 9425 IO I 94zs 1 o 'f\ 9426 I o 1 9426 I o Ll
--FORM AIF OSC 002 02 REV 3 WCNOC OWNER'S ACCEPTANCE REVIEW CHECKLIST FOR EXTERNAL CALCULATIONS AND SPECIFICATIONS Title: Post Fire Safe Shutdown (PFSSD) Analysis Wolf Creek document#:
XX-E-013-004-Revision#:
CN005 ECDE: Enercon INITIATING DOCUMENT and revision:
I CP 020021 R/0 (e.g., PO, CR, swo) CHANGE TYPE: 0 Calculation D Specification N/A PAGE 1 OF 5 SAFETY CLASS: D SR 0 ss D NS R WCNOC DigsigVer 5, 0.45 Date: Reviewer signature:
09/26/18 WCNOC OigsigVer 5, 0.45 Date: Approver:
10/02/2018 Prepared By: Init I Date William M. Wilkins WMW9/26/18 FORM AIF 05C-002-02, REV. 3 WCNOC OWNER'S ACCEPTANCE REVIEW CHECKLIST FOR EXTERNAL CALCULATIONS AND SPECIFICATIONS Title: Post Fire Safe Shutdown (PFSSD) Analysis Wolf Creek document#:
XX-E-013-004-CNOOS Revision#:
N/A ECDE: Enercon No. Question Instructions and Guidance YES 1 Do assumptions have All Assumptions should be stated in clear sufficient documented terms with enough justification to confirm rationale?
that the assumption is conservative:
For example, 1) the exact value of a particular parameter may not be known or that parameter may be known to vary over
- the range of conditions covered by the Calculation.
It is appropriate to represent or bound the parameter with an assumed value. 2) The predicted performance of a specific piece of equipment in lieu of actual test data. It is appropriate to use the documented opinion/position of a recognized expert on that equipment to represent predicted equipment performance.
Consideration should also be given as to any qualification testing that may be needed to validate the Assumptions.
Ask yourself, would you provide more justification if you were performing this analysis?
If yes, the rationale is likely incomplete.
2 Are assumptions Ensure the documentation for source and compatible with the rationale for the assumption supports the way way the plant is the plant is currently or will be operated post operated and with the change and they are not in conflict with any licensing basis? design parameters.
If the Analysis purpose is to establish a new licensing basis, this question can be answered yes, if the assumption supports that new basis. NO PAGE. 20F 5 N/A X X FORM AIF 05C-002-02, REV. 3 WCNOC OWNER'S ACCEPTANCE REVIEW CHECKLIST FOR EXTERNAL CALCULATIONS AND SPECIFICATIONS Title: Post Fire Safe Shutdown (PFSSD) Analysis Wolf Creek document#:
XX-E-013-004-CNOOS Revision #: N/A ECDE: Enercon No. Question Instructions and Guidance YES 3 Do all unverified If there are unverified assumptions without a assumptions have a tracking mechanism indicated, then create the tracking and closure tracking item either through an A TI or a work mechanism in place? order attached to the implementing WO. Due dates for thyse actions need to support verification prior to the analysis becoming operational or the resultant plant change being op authorized.
4 Do the design inputs The origin of the input, or the source should have sufficient be identified and be readily retrievable within X rationale?
WCNOC's documentation system. If not, then the source should be attached to the analysis.
Ask yourself, would you provide more justification if you were performing this analysis?
If yes, the rationale is likely incomplete.
5 Are design inputs The expectation is that an WCNOC Engineer correct and reasonable should be able to clearly understand which X with critical input parameters are critical to the outcome of parameters identified, the analysis.
That is, what is the impact of a if appropriate?
change in the parameter to the results of the analysis?
If the impact is large, then that parameter is critical.
6 Are design inputs Ensure the documentation for source and compatible with the rationale for the inputs supports the way the X way the plant is plant is currently or will be operated post operated and with the change and they are not in conflict with any licensing basis? design parameters.
7 Are Engineering Ask yourself, would you provide more Judgments clearly justification if you were performing this documented and analysis?
If yes, the rationale is likely justified?
incomplete.
NO PAGE 30F 5 N/A X X FORM AIF 05C 002 02 REV 3 --WCNOC OWNER'S ACCEPTANCE REVIEW CHECKLIST FOR EXTERNAL CALCULATIONS AND SPECIFICATIONS PAGE Title: Post Fire Safe Shutdown (PFSSD) Analysis 40F 5 Wolf Creek document#:
XX-E-013-004-Revision#:
N/A CN005 ECDE: Enercon No. Question Instructions and Guidance YES NO N/A 8 Are Engineering Ensure the justification for the engineering Judgments compatible judgment supports the way the plant is X with the way the plant currently or will be operated post change and is operated and with is not in conflict with any design parameters.
the licensing basis? If the Analysis purpose is to establish a new licensing basis, then this question can be answered yes, if the judgment supports that new basis. 9 Do the results and Why was the analysis being performed?
conclusions satisfy the Does the stated purpose match the X purpose and objective expectation from WCNOC on the proposed of the Design application of the results? If yes, then the Analysis?
analysis meets the needs of the contract.
10 Are the results and Make sure that the results support the USAR conclusions defined system design and operating X compatible with the conditions, or they support a proposed change way the plant is to those conditions.
If the analysis supports a operated and with the change, are all of the other changing licensing basis? documents included on the cover sheet as impacted documents?
11 Have any limitations Does the analysis support a temporary on the use of the condition or procedure change? Make sure X results been identified that any other documents needing to be and transmitted to the updated are included and clearly delineated in appropriate the design analysis.
Make sure that the cover organizations?
sheet includes the other documents where the results of this analysis provide the input. 12 Have margin impacts Make sure that the impacts to margin are been identified and clearly shown within the body ofthe analysis.
X documented lfthe analysis results in reduced margins appropriately for any ensure that this has been appropriately negative impacts. dispositioned in the EC being used to issue the analysis.
FORM AIF 05C 002 02 REV 3 --WCNOC OWNER'S ACCEPTANCE REVIEW CHECKLIST FOR EXTERNAL CALCULATIONS AND SPECIFICATIONS PAGE Title: Post Fire Safe Shutdown (PFSSD) Analysis SOF 5 Wolf Creek document#:
XX-E-013-004-Revision#:
N/A CNOOS ECDE: Enercon No. Question Instructions and Guidance YES NO N/A 13 Does the Design Are there sufficient documents included to Analysis include the support the sources of input, and other reference X applicable design basis material that is not readily retrievable in WCNOC documentation?
controlled Documents?
14 Have all affected design Determine if sufficient searches have been analyses been performed to identify any related analyses that X documented on the need to be revised along with the base analysis.
It Affected Documents may be necessary to perform some basic searches List (ADL) for the to validate this. associated ConfiQuration Change? 15 Do the sources of Compare any referenced codes and standards to inputs and analysis the current design basis and ensure that any X , methodology used differences are reconciled.
If the input sources or meet committed analysis methodology are based on an out-of-date technical and methodology or code, additional reconciliation regulatory may be required if the site has since committed to requirements?
a more recent code 16 Have vendor Based on the risk assessment performed during supporting technical the pre-job brief for the analysis, ensure that X documents sufficient reviews of any supporting_
documents and references not provided with the final analysis are performed. (including GE DRFs) been reviewed when necessary?
17 Does the Ensure the design addresses and meets digital include any dtgital and cyber security requirements.
Refer to AP X assets? If so, does it adequately address 15D-008 and contact the Cyber Security digital and cyber Group to perform additional reviews prior to security approval.
The CSA T is required to review requirements?
modifications impacting Cyber Security. -END-