WO 23-0006, Calculation XX-E-013, Rev 4, CN005, Post-Fire Safe Shutdown (PFSSD) Analysis
Text
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Post-Fire Safe Shutdown (PFSSD) Analysis
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OI.Ct7LATIOH SUBJECT (Sta~t Of Probl-) - Enter this in SUBJECT field in EIS:
CP 020021 XNBOl replacc:mmt impact to revise relay designatious fm transfunoer protection features. Additionally. discussion of load t3p changer feature of new transformer included with clarification it is not PFSSD..A CcN is >1,t~e:/ by (l(tl,-£-Ois-OO'l-d007 dn.e /, P!,1/[Siun c,J""
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FORM APF-05D-001-02, REV. 12 CALCULATION DATABASE INPUT CCN NO.
XX-E-013 Base Calc No.
- 004 Rev No.
Page 2 CN005 Sequence No.
Link new systems to the calculation/CCN in EIS.
Systems Affected:
NB, MA Develop relationships between interdependent calculations in EIS.
Additional Calculations Providing Input to this calculation:
None Additional Calculations Impacted by this calculation:
None Develop relationships between the calculation/CCN and controlled reference documents in EIS.
Additional Controlled Documents Inputs to this calculation:
None Additional Controlled Documents Impacted by this calculation:
None 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 Reference Documents:
CP 020021, Enercon Calc. WCN-025-CALC-010 Link new components to the calculation/CCN in EIS.
Additional Components:
None REFER TO DESKTOP GUIDE FOR PROCESSING CALCULATIONS IN EIS
FORM APF-05D-001-02, REV. 12 LIST OF EFFECTIVE PAGES CCN NO.
XX-E-013 Base Calc No.
- 004 Rev No.
Page 3 CN005 Sequence No CCN Page No.
Calc.
Page Affected DVR/SCRN/
Other CCN Page No.
Calc.
Page Affected
/DVR/SCRN
/Other CCN Page No.
Calc.
Page Affected
/DVR/SCRN
/Other CCN Page No.
Calc.
Page Affected
/DVR/SCRN
/Other 1-3 None 4(Att.
- 1)
Appendix 1; p63 Appendix 2; p7 Appendix 4; p4,24 OAR None
FORM APF-05D-001-02, REV. 12 ATTACHMENT 1 CCN NO.
XX-E-013 Base Calc No.
- 004 Rev No.
Page 4 CN005 Sequence No Vendor calculation WCN-025-CALC-010, Rev 0
CALC NO.
WCN-025-CALC-010 I ENERCON CALCULATION COVER SHEET REV.0 0
Excellence-Evrry project. E11ery doy.
PAGE NO.
1 of 8 UPDATE TO WCNOC CALCULATION XX-E-Client:
Title:
013, PFSSD ANALYSIS Project Identifier:
WCN-025 Item Cover Sheet Items Yes No 1
Does this calculation contain any open assumptions, including preliminary
~
information, that require confirmation? (If YES, identify the assumptions.)
2 Does this calculation serve as an "Alternate Calculation"? (If YES, identify the
~
design verified calculation.)
Design Verified Calculation No. --
3 Does this calculation supersede an existing design verified calculation.)
Calculation? (If YES, identify the
~
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 Final Calculation ~
Safety-Related Non-Safety-Related -~
(Print Name and Sign)
Originator:
Robert N. Thomas (iJtj:-r;.~#/
Date:
09/20/2018 Design Verifier1 (Reviewer if NSR): Stacey Graybeal kcrdl~
Date:
09/20/2018 Approver: Austin Tran
_ ~
Dlgftallyslgned byAustinTran Date:
09/20/2018
~ Date: 2018.09.20 18:10:10
-05'00' Note 1: For non-safety-related calculation, design verification can be substituted by review.
Page 1 of 8
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Austin Tran
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Date* 2018 09 20
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CALCULATION CALC NO.
WCN-025-CALC-010 REVISION STATUS SHEET
~ ENERCON I
REV.
0 1--
Excellence-Every pro)ecr. E11ery do:t PAGE NO.
2 of 8 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.
NO.
PAGES NO.
A 4
0 Page 2 of 8
'~ ENERCON I
TABLE OF CONTENTS Exctlltnce-Every pro)<<f. fvtry doy, 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 a ENERCON UPDATE TO WCNOC CALCULATION XX-E-013, REV.
0 Excellence-E~ry pro jeer. Evt!ty day.
PFSSD ANALYSIS 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 {L TC) 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 MA 104F 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 L TC controls will not impact the PFSSD function of XNB01. Two overcurrent relays (287/T1 Phase Band 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 ENERCON UPDATE TO WCNOC CALCULATION XX-E-013, REV.
0 Excellence-Every projecl. Eve,y dqy.
PFSSD ANALYSIS 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-1F9910, 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-1 R4431, Raceway Plan Turbine Building Area-3 EL. 2033'-0", Rev.
2 3.10 E-1 R4331, Raceway Plan Turbine Building Area-3 EL. 2000'-0", Rev.
1 3.11 E-1 R4321, Raceway Plan Turbine Building Area-2 EL. 2000'-0", Rev.
2 3.12 E-1 R4322, Exposed Conduit Turbine Building Area-2 EL. 2000'-0",
Rev. 4 3.13 E-13NB10, 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
@ ENERCON UPDATE TO WCNOC CALCULATION XX-E-013, REV.
0 ExcellMU-Evtrypro}<<t. Evt!rydoy.
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 Excel~n,e-EYery project. Eve,y ~
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 L TC 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 287/T1(B) and 287/T1(C) are removed from the plant and will be removed from the calculation. Relay 287/T1(A) is changed to 287/T1(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-2/T1 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_
AP_F_o_s_o-_0_01_-0_1,._, R_E_v_. _10------------,....-----iAPPENDIX A APPENDIX 1 PFSSD FUNCTION EVALUATIONS (PFSSD SUPPORT)
PAGE 1 OF 4 CALCULATION NO.
REVISION NO.
XX-E-013 4
Paae 63 PA0210 is included in the PFSSD design because PA021 O 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 self-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 1.0). Therefore, there is a 100% margin for the OBA 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 L TC 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 L TC controller monitors the 13.8 kV input and adjusts the tap changer position to maintain the NB01 voltage level at a set level. A failure of the main L TC controller would result in the L TC controls being shifted to the backup L TC 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 L TC 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 L TC controllers will not impact the PFSSD function of XNB01.
CALC NO. WCN-025-CALC-010 REV. 0 FORM APF 05D-001-01, REV. 10 APPENDIX A PAGE 2 OF 4 APPENDIX 2 CALCULATION NO.
XX-E- 013 LOSS OF OFF-SITE POWER EVALUATION REVISION NO.
4 Page 7 TABLE A OFF-SITE POWER AND EMERGENCY DIESEL GENERATOR CABLES CABLE ASSOCIATED BUS/ DIESEL DESCRIPTION GENERATOR NB01 DGA NB02 DGB 14NEB02AH X
Emeroency Diesel Generator B 14NEB02AJ X
Emerqency Diesel Generator B 14NEB02AL X
Emergency Diesel Generator B 14NEB02AM X
Emerqency Diesel Generator B 14NEB02AN X
Emergency Diesel Generator B 14NEB02AP X
Emeroencv Diesel Generator B 14NEB02AQ X
Emerqency Diesel Generator B 14NEB02AR X
Emergency Diesel Generator B 14NEB02AS X
Emerqency Diesel Generator B 14NEB02AU X
Emergency Diesel Generator B 14NEB02AV X
Emeroency Diesel Generator B 14NEB11AA X
Emerqency Diesel Generator B 14NEB11AB X
Emergency Diesel Generator B 14NEB11AC X
Emeroency Diesel Generator B 14NEB11AD X
Emerqency Diesel Generator B 14NEB11AF X
Emeraency Diesel Generator B 14NEB11AG X
Emerqency Diesel Generator B 14NEB11AJ X
Emergency Diesel Generator B 14NEK13AA X
Emeraency Diesel Generator B 14NEK13AD X
Emerqency Diesel Generator B 14NEK13AE X
Emeraency Diesel Generator B I
14NEK13AH X
Emerqency Diesel Generator B 14NEK1 3AJ X
Emergency Diesel Generator B 15MRK10AA X
XMR01 fault pressure switch 463-1/T2 XMR01 fault pressure switch 463-2/T2 XMR01 fault pressure relay 463X-1/T2 XMR01 fault pressure relay 463X-2/T2 15MRK10AE X
XMR01 Deluge Relay AR?
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 I\\
Trips 15MRX01AG Monitor relays X \\
XMR01 Phase Differential Relay 487/T1 15MRX01AL 263FP K4A and X \\
XMR01 Neutral Ground Relay 251 N-1/T1 K4B I\\
XMR01 Neutral Ground Relay 251 N-2/T1 15MRX01AN X
\\
XMR01 Feeder to PA0110 15NBA10AA X
\\
NB0112 Lockout Relay 286-1/T1 NB0212 Lockout Relay 286-2/T1 15NBA10AC X
~,IXNB01 Fault Pressure Switch 263-1/T1 XNB01 Fault Pressure Relay 263X-1/T1 XNB01 Fault Pressure Switch 263-2/T1 XNB01 Fault Pressure Relay 263X-2/T1
APPENDIX4 PFSSD RELAY LIST Relay ll SIG Relay Name TSR 4
Test Start Relay 286/T1 6 Lockout Relay /
486/T1 5 Lockout Rel1/
151 N/T1 5 Ground cM.r Current Relav
[ 263X-1/T1 5 Faull Pressure Swill:h Relay 263X-2/T1 5 Faull Pressure Swill:h Relay
~~
6 Phase A Diffel8ntial Cumin! Relay ft.-
~~
6 -*-:;
C) 6 Phase C Diffarential Cunant 94-1/T \\
6 Switch yard Trip Relay
\\
127-1/0\\
1 NB01 Undervoltage Relay \\
1 AC Circuit Breaker Stationary
\\
Contact (Sorted by Relay Location I Relay ID)
Fire Relay SSD Sprtd Hot Cold Normal Alt Room Area Location Fun Fun Stdby Slldwn Slldwn Shdwn 5201 D-2 KJ122 s
R, M, H X
X X
X
.. These two relays are no X
X X
longer inservice and can be removed.
~
v X
X V V -
4401W TURB MA104F s
RMH X
x/
X 4401W TURS MA104F s
R,M,H X v x X
4401W TURB MA104F s
R,M,H X/
X X
4401W TURB MA104F s
R,M, H vx X
X J/
4401W TURB' MA104F s
R,M,H '
X X
X 4401W TURB MA104F s
R,M,H X
X X
4401W TURB MA104F s
R, M,H X
X X
3301 C-9 NB0101 s
R, M,H X
X X
3301 C-9 NB0104 s
R, M,H X
X X
152 STA
\\
1287/T1 (A,B,C)~ary
"""'33Phase A,B,C Differential Current Relay k 152 STA L.
wntact 186/M 1 Lockout Relay 3301 C-9 NB0107 s
R,M,H X
X X
152 STA 1 AC Circuit Breaker Stationary 3301 C-9 NB0108 s
R,M, H X
X X
Contact 186/M 1 Lockout Relay 3301 C-9 NB0108 s
R, M,H X
X X
125/F 1 Synchronizing Check Relay 3301 C-9 NB0109 s
R, M, H X
X X
152 STA 1 AC Circuit Breaker Stationary 3301 C-9 NB0109 s
R, M, H X
X X
Contact 186/F 1 Lockout Relay 3301 C-9 NB0109 s
R, M,H X
X X
286-2/T2 1 Lockout Relay 3301 C-9 NB0109 s
R,M,H X
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 Schematic/
Power Feeder Logic R
One Lint other Drawing Breaker Notes Diagram E
(E-1F)
V E-13KJ03A M-018--00105 NK5414 9411B 0
M-018-00106 9412B These two relays are I
9426 0
removed from the plant.
E-11MR01 PK6204 9426 0
E-13MR10 PK6106 E-13NB11 E-13NB10 PK6108 9425 0
E-13NB10 PK6108 9425 : ]
E-13NB10 PK6108 9425 E-13NB10 PK6108 9425 0
E~13NB10 PK6108 9425 : I E-13NB10 PK6108 9425 E-13NB10 PK6108 9425 0
E-12NF01 NB0101 9411A 0
E-13NB01 9412A E-13NF01 E-13EG01A NK4101 9401A 0
9401B E-13EG01A NK4101 9401A 0
E-13EG01B 9401B E-13EG01A NK4101 9401A 0
E-13EG01A NK4101 9401A 0
E-13EG01B 9401B E-13EG01B NK4101 9401A 0
E-13NB02 NK4101 9425 0
E-13NB13 E-13NE10 NK4101 9423 0
E-13NB13 NK4101 9423 0
E-13NE10 9425 E-13NB13 NK4101 9425 0
APPENDIX4 PFSSD RELAY LIST Relay I>
SIG Relay Name K526 4
Safety Injection Master Relay K713 4
Pressurizer High Pressure Relay K726 4
Low-Low T AVG or ABHS0064 in 'OFF/RESET' Relay K727 4 Low-Low T AVG or ABHS0064 in 'OFF/RESET' Relay K728 4
Low-Low T AVG or ABHS0064 in 'OFF /RESET' Relay K734 4 High-1 RCS Pressure Relay
/7 K740 4
Safety lnjec7 Iay K741 4 v w-Low 1 Level Relay
/
K811 l,, 4 Block Test Relay I~1/T1 5 Fault Pressure Switch Relay 263-2/T1 5
Fault Pressure Switch Relay 263-1/T2 'l' 6 Fault Pressure Switch Relay 263-2/T2 '
6 Fault Pressure Switch Relay 263FP (K4B)
I Are Relay SSD Room Area Location Fun 3605 C-27 SB0320 s
3601 C-27 SB0320 M
3605 C-27 SB0320 R, H 3605 C-27 SB0320 R, H 3605 C-27 SB0320 R, H 3605 C-27 SB032D H
263FP (K4A) 3605 C-27 SB0320 H
3605 C-27 SB0320 H
3605 C-27 SB033A M
Yard XNB01 s
Yard XNB01 s
Yard XNB02 s
Yard XNB02 s
CALC NO. WCN-025-CALC-010 REV. 0 APPENDIX A PAGE4OF 4 (Sorted by Relay Location/ Relay ID)
REVISION NO.
4 Page 24 Sprtd Hot Cold Nonna!
Alt Schematic/
Power Feeder Logic Fun Stdby Shdwn Shdwn Shdwn One Line Other Dnwing Breaker Notes Diagram (E*1F)
R,M, H X
X X
M-767-0037 4 NK4416 9432 M-767-00350 NN0412 X
X X
E-13B840 M-767-00186 NK4421 BBPCV0456A opens if K713 is 9301 E-13SB05 M-767-00189 NN0412 energized. XX-E-013-002-NK4416 CN002 X
X E-13AB08 M-767-00188 NK4416 9103 NN0412 X
X E-13AB11A M-767-00188 NK4416 9103 E-13AB11B NN0412 E-13AB11C X
X E-13AB11C M-767-00188 NK4416 9103 NN0412 X
E-13BB12A M-767-00186 NG02BCF2 9205 E-138B128 M-767-00189 NG02BBF3 NN0412 NK4416 X
E-13EJ06B M-767-00189 NG02BEF2 9205 E-13SB05 NN0412 NK4416 X
E-13EJ06B M-767-00189 NG02BEF2 9205 PK4115r-E-13SB05 NN0412 NK4416 X
X X
X E-138B40 ----
NK4421 9301 R,M, H X
X X
E-13NB10
~ I PK6108 I
9425 R,M, H X
X X
E-13NB10 I
PK6108 I
9425 R, M, H X
X X
E-13NB11 PK6204
, I\\
9426 E-13PA14 J
R, M, H X
X X
E-13NB11 PK6204 I
9426 E-13PA14 PK4115 is connected to cable 15NBK16AA. This u supplies power to the monitor that houses relays at XNB01. PK4115 and associated cable 15NBK16AA are not required for PFSSD. Loss of power or cable failure will not cause a loss of XNB01.
R E
V 0
3 0
0 0
0 0
0 0
0 0
0 0
FORM AIF 05C-002-02, REV. 3 WCNOC OWNERS ACCEPTANCE REVIEW CHECKLIST FOR EXTERNAL CALCULATIONS AND SPECIFICATIONS PAGE 1 OF 5
Title:
Post Fire Safe Shutdown (PFSSD) Analysis Wolf Creek document #: XX-E-013-004-CN005 Revision #: N/A ECDE: Enercon INITIATING DOCUMENT and revision:
(e.g., PO, CR, SWO)
CP 020021 R/0 CHANGE TYPE:
X Calculation Specification SAFETY CLASS:
SR X
SS NSR WCNOC Reviewer signature:
DigsigVer 5, 0.45 Date:
09/26/18 WCNOC Approver:
DigsigVer 5, 0.45 Date:
10/02/2018 Prepared By:
Init / Date William M. Wilkins WMW 9/26/18
~~~
~~
FORM AIF 05C-002-02, REV. 3 WCNOC OWNERS ACCEPTANCE REVIEW CHECKLIST FOR EXTERNAL CALCULATIONS AND SPECIFICATIONS PAGE 2 OF 5
Title:
Post Fire Safe Shutdown (PFSSD) Analysis Wolf Creek document #: XX-E-013-004-CN005 Revision #: N/A ECDE: Enercon No.
Question Instructions and Guidance YES NO N/A 1
Do assumptions have sufficient documented rationale?
All Assumptions should be stated in clear terms with enough justification to confirm 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.
X 2
Are assumptions compatible with the way the plant is operated and with the licensing basis?
Ensure the documentation for source and rationale for the assumption supports the way the plant is currently or will be operated post change and they are not in conflict with any 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.
X
FORM AIF 05C-002-02, REV. 3 WCNOC OWNERS ACCEPTANCE REVIEW CHECKLIST FOR EXTERNAL CALCULATIONS AND SPECIFICATIONS PAGE 3 OF 5
Title:
Post Fire Safe Shutdown (PFSSD) Analysis Wolf Creek document #: XX-E-013-004-CN005 Revision #: N/A ECDE: Enercon No.
Question Instructions and Guidance YES NO N/A 3
Do all unverified assumptions have a tracking and closure mechanism in place?
If there are unverified assumptions without a tracking mechanism indicated, then create the tracking item either through an ATI or a work order attached to the implementing WO. Due dates for these actions need to support verification prior to the analysis becoming operational or the resultant plant change being op authorized.
X 4
Do the design inputs have sufficient rationale?
The origin of the input, or the source should be identified and be readily retrievable within 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.
X 5
Are design inputs correct and reasonable with critical parameters identified, if appropriate?
The expectation is that an WCNOC Engineer should be able to clearly understand which input parameters are critical to the outcome of the analysis. That is, what is the impact of a change in the parameter to the results of the analysis? If the impact is large, then that parameter is critical.
X 6
Are design inputs compatible with the way the plant is operated and with the licensing basis?
Ensure the documentation for source and rationale for the inputs supports the way the plant is currently or will be operated post change and they are not in conflict with any design parameters.
X 7
Are Engineering Judgments clearly documented and justified?
Ask yourself, would you provide more justification if you were performing this analysis? If yes, the rationale is likely incomplete.
X
FORM AIF 05C-002-02, REV. 3 WCNOC OWNERS ACCEPTANCE REVIEW CHECKLIST FOR EXTERNAL CALCULATIONS AND SPECIFICATIONS PAGE 4 OF 5
Title:
Post Fire Safe Shutdown (PFSSD) Analysis Wolf Creek document #: XX-E-013-004-CN005 Revision #: N/A ECDE: Enercon No.
Question Instructions and Guidance YES NO N/A 8
Are Engineering Judgments compatible with the way the plant is operated and with the licensing basis?
Ensure the justification for the engineering judgment supports the way the plant is currently or will be operated post change and is not in conflict with any design parameters.
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.
X 9
Do the results and conclusions satisfy the purpose and objective of the Design Analysis?
Why was the analysis being performed?
Does the stated purpose match the expectation from WCNOC on the proposed application of the results? If yes, then the analysis meets the needs of the contract.
X 10 Are the results and conclusions compatible with the way the plant is operated and with the licensing basis?
Make sure that the results support the USAR defined system design and operating conditions, or they support a proposed change to those conditions. If the analysis supports a change, are all of the other changing documents included on the cover sheet as impacted documents?
X 11 Have any limitations on the use of the results been identified and transmitted to the appropriate organizations?
Does the analysis support a temporary condition or procedure change? Make sure that any other documents needing to be updated are included and clearly delineated in the design analysis. Make sure that the cover sheet includes the other documents where the results of this analysis provide the input.
X 12 Have margin impacts been identified and documented appropriately for any negative impacts.
Make sure that the impacts to margin are clearly shown within the body of the analysis.
If the analysis results in reduced margins ensure that this has been appropriately dispositioned in the EC being used to issue the analysis.
X
FORM AIF 05C-002-02, REV. 3 WCNOC OWNERS ACCEPTANCE REVIEW CHECKLIST FOR EXTERNAL CALCULATIONS AND SPECIFICATIONS PAGE 5 OF 5
Title:
Post Fire Safe Shutdown (PFSSD) Analysis Wolf Creek document #: XX-E-013-004-CN005 Revision #: N/A ECDE: Enercon No.
Question Instructions and Guidance YES NO N/A 13 Does the Design Analysis include the applicable design basis documentation?
Are there sufficient documents included to support the sources of input, and other reference material that is not readily retrievable in WCNOC controlled Documents?
X 14 Have all affected design analyses been documented on the Affected Documents List (ADL) for the associated ConfiQuration Change?
Determine if sufficient searches have been performed to identify any related analyses that need to be revised along with the base analysis. It may be necessary to perform some basic searches to validate this.
X 15 Do the sources of inputs and analysis methodology used meet committed technical and regulatory requirements?
Compare any referenced codes and standards to the current design basis and ensure that any differences are reconciled. If the input sources or analysis methodology are based on an out-of-date methodology or code, additional reconciliation may be required if the site has since committed to a more recent code X
16 Have vendor supporting technical documents and references (including GE DRFs) been reviewed when necessary?
Based on the risk assessment performed during the pre-job brief for the analysis, ensure that sufficient reviews of any supporting documents not provided with the final analysis are performed.
X 17 Does the design include any digital assets? If so, does it adequately address digital and cyber security requirements?
Ensure the design addresses and meets digital and cyber security requirements. Refer to AP 15D-008 and contact the Cyber Security Group to perform additional reviews prior to approval. The CSAT is required to review modifications impacting Cyber Security.
X
- END -