RC-15-0133, Transmittal of Updated Expedited Seismic Evaluation Process Pages
| ML15229A089 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 08/13/2015 |
| From: | Gatlin T South Carolina Electric & Gas Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| RC-15-0133 | |
| Download: ML15229A089 (10) | |
Text
Thomas D. Gatlin Vice President, Nuclear Operations 803.345.4342 A SCANA COMPANY August 13, 2015 RC-1 5-0133 U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555
Dear Sir / Madam:
Subject:
VIRGIL C. SUMMER NUCLEAR STATION (VCSNS) UNIT I DOCKET NO. 50-395 OPERATING LICENSE NO. NPF-12 TRANSMITTAL OF UPDATED EXPEDITED SEISMIC EVALUATION PROCESS PAGES South Carolina Electric & Gas Company (SCE&G), acting for itself and as agent for South Carolina Public Service Authority is submitting copies of updated pages of the Expedited Seismic Evaluation Process (ESEP) report. Please find the updated ESEP pages in Attachment I.
These pages are provided in response to a conference call between VC Summer and the NRC on July 28, 2015 at 1300.
This letter contains three new commitments. The new commitments are shown in Attachment I in the update to Section 8.4 ofthe ESEP.and Attachment I1.
Should you have any questions, please call Bruce L. Thompson at 803-931-5042.
/\\ ooI V. C. Summer Nuclear Station.* P.O0.
Box 88. J enkinsville, SC. 29065.* F (803) 941-9776
Document Control Desk CR-i15-03436 RC-1 5-0133 Page 2 of 2 I declare under penalty of perjury that the foregoing is true and correct.
Ti~a D*GatlinK*
Executed on WLT/TDG/ts Attachments:
I.
Updated Expedited Seismic Evaluation Process Report Pages for the V.C.
Summer Nuclear Station II.
K. B. Marsh S. A. Byrne J. B. Archie N. S. Cams J. H. Hamilton J. W. Williams W. M. Cherry V. M. McCree S. A. Williams K. M. Sutton S. M. Wyman NRC Resident Inspector NSRC RTS (CR-i15-03436/CR-i12-0i1097)
File (815.07)
PRSF (RC-15-0133)
Document Control Desk Attachment I CR-I15-03436 RC-1 5-0133 Page 1 of 7 VIRGIL C. SUMMER NUCLEAR STATION (VCSNS) UNIT 1 Attachment I Updated Expedited Seismic Evaluation Process Report Pages for the V.C.
Summer Nuclear Station Repiace the following pages of the Expedited Seismic Evaluation Process report with the attached revised pages.
ESEP Affected Section Description of Chang~e 26 of 67 Table 7.1 Updated Table 7.1 Notes and corrected complete ESEP and ESEL date.
30 of 67 8.4 Updated CR information.
31 of 67 8.4 Added three new commitments.
50 of 67 Attachment A Added Table 7.1 items to ESEL list.
63 of 67 Table B-I Updated Table B-I to include Table 7.1 items and HCLPF information.
64 of 67 Table B-2 Added Table 7.1 items to Table B-2.
TR00080-005 REVISION 1 7.0 Inaccessible Items The items in Table 7.1 are inside containment and currently inaccessible. The station will perform walkdowns of the items in Table 7.1 during the fall 2015 refueling outage. The station proposes to submit a letter to NRC stating walkdowns have been completed and provide HCLPF results for the items in Table 7.1 by February 1, 2016.
TABLE 7.1 - INACCESSIBLE ITEMS TO BE ADDED TO ESEL ESEL Equipment Operating State1 Item Normal Desired Notes/Comments Num ID Description State State SG AWD RGE OIP 219 ILI00477 LEVEL INDICATOR N/A N/A SG BWD RGE OIP 220 ILI00487 LEVEL INDICATOR N/A N/A SG CWD RANGE OIP 221 ILI00497 LEVEL INDICATOR N/A N/A SG A WIDE RANGE D-302-01 1 222 ILT00477 LEVEL XMTR N/A N/A SG BWIDE RANGE D-302-01 1 223 ILT00487 LEVEL XMTR N/A N/A SG C IDE ANGED-302-01 1
224 ILT00497 SGCWVEL XRAG N/A N/A RCS WIDE RANGE OIP 225 IPI00402B PRESSURE N/A N/A
~~INDICATOR PT-402 RC WIDE D-302-604 226 IPT00402 RNG. PRESS.
N/A N/A TRANSMITTER RC LOOP A COLD D-302-601 227 ITOO41OLEG 22 T040TEMPERATURE N/A N/A ELEMENT RC LOOP A COLD OIP 228 ITI00410 LEG TEMP N/A N/A INDICATOR Page 26 of 67
TR00080-005 REVISION 1 8.4 Summary of Regulatory Commitments The following actions have been added to VCSNS Corrective Action Program as. CR 01097 and CR-15-03436, and will be performed as a result of the ESEP.
Action
,Equipment Equipment
° Completion:
S#
ID
- Description, Action Description Date XSW1DA 7.2KV Modify FLEX Support December 2016 Switchgear Procedures to 'include operator actions to reset relays with HCLPF values less than the RLGM.
- 2XSW1DAI 480V Switchgear Modify FLEX Support December 2016 Procedures to include operator actions to reset relays with HCLPF values less than the RLGM.
- 3XSW1DA2 480V Switchgear Modify FLEX Support December 2016 Procedures to include operator actions to reset relays with HCLPF values less than the RLGM.
- 4 XVT03 169-SW DRPI Cooling Modify the seismic interaction to No later than the Unit Outlet provide sufficient shake space, or end of the second Header Isolation modify piping system supports Unit 1 refueling Valve such that HCLPF > GMRS.
outage after December 31, 2014 (Tentative Spring 2017) 5IPV02000-MS Main Steam Modify valve or handrail to December 2016 Header Power provide sufficient shake space.
Relief Valve 6XBA-1A 125V DC Modify rack to reduce front rail No later than the Distribution Bus gaps.
end of the second Battery Unit 1 refueling outage after December 31, 2014 (Tentative Spring 2017)
Page 30 of 67
TR00080-005 REVISION 1 Actio Equipmentv Eq uipment Action Completion...
S#
ID: :
Description cin Description Dt 7XBA-1B 125V DC Modify rack to reduce fr'ont rail No later than the Distribution Bus gaps.
end of the second Battery Unit 1 refueling outage after December 31, 2014 (Tentative Spring 2017) 8 XVT02843B-MS Main Steam Trim the steel angle post to December 2016 Header Drain mitigate potential seismic Valve interaction.
9 XVT03 164-SW DRPI Cooling Modify the handrail to mitigate No later than the Unit Inlet Header potential seismic interaction, end of the second Isolation Valve Unit 1 refueling outage after December 31I, 2014 (Tentative Spring 2017) 10 Various See Section 7.1 Complete walkdowns of Prior to Inaccessible Items listed in completion of Table 7.1 of Expedited Fall 2015 Outage Seismic Evaluation Process report prior to end of Fall 2015 refueling outage.
11 Various See Section 7.1 Submit letter to NRC stating February 1, 2016 walkdowns have been completed and provide HCLPF results in Attachment B of Expedited Seismic Evaluation Process report.
12 N/A N/A Submit letter to NRC stating 60 days all Expedited Seismic following Evaluation Process report completion of Modifications, Actions 1 the second Unit through 9 of Section 8.4, are 1 refueling complete.
outage after December 31, 2014 (Tentative Spring 2017)
Page 31 of 67
TR00080-005 REVISION 1 quEL Eq ipment..
Operating:...
State.1 Item Normal Desired Notes/Comments Num ID Description State i'State:
219 I1LI00477 SG A WD RGE LEVEL N/A N/A OIP INDICATOR 220 ILI00487 SG B WD RGE LEVEL N/A N/A OIP INDJICATOR 221 ILI00497 SG CWD RANGE N/A N/A OIP LEVEL INDICATOR 222 ILT00477 SG AWIDE RANGE N/A N/A D-302-011 LEVEL XMTR 223 ILT00487 SG BWIDE RANGE N/A N/A D-302-011 LEVEL XMTR 224 ILT00497 SG CWIDE RANGE N/A N/A D-302-011 LEVEL XMTR 225 IPI00402B RCS WIDE RANGE N/A N/A OIP PRESSURE INDICATOR 226 IPT00402 PT-402 RC WIDE RNG.
N/A N/A D-302-604 PRESS. TRANSMITTER 227 ITE00410O RC LOOP A COLD LEG N/A N/A D-302-601 TEMPERATURE ELEMENT
2.
The operating states for the equipment selected for inclus ion on the ESEL can be found in Attachment 5 of Reference 20.
These components were identified to have lockout relays, which were considered in this analysis. For more information regarding the identification of these lockout relays, see tab "VCSNS U1 Elec ESEL Relay List" within Attachment 5 of Reference 20.
Page 50 of 67
TR0008 0-0 05 REVISION 1 Table B-i: ESEL HCLPF Values No. ID
~
~ ~~~~~,Description :
Bd lv ls CPF()
> 0.30 Screened 169 IFTO0495A NARROW RANGE STEAM FLOW RB 463 18
> 0.30 "Screened 170 XAA000IA RB COOLING UNIT IA RB 514 10 0.35 Overallstructural integrity.
171 IYE40000 RBCU FAN XFN0064A VIBRATION SENSOR RB 514 0
>_ 0.30 Screened 172 XVR03146A-SW RB CLO UNIT 1A OUTLET H-DR RELIEF VALVE RB 518 7
>_0.30 Screened 173 XVT03164-SW DRPI COOLING UNIT INLET H-DR ISOL VALVE RB 518 7
0.44 Functionality 174 XVT03169-SW DRPI COOLING UNIT OUTLET HDR 1SOL VLV RB 518 7
0.24 Seismic interaction.
175 XVG03I08B-SW RB COOLING UNIT 2A INLET ISOLATION VLV RB 518 8
0.82 Functionality 176 XVGO3109B-SW RB COOLING UNIT 2A OUTLET ISOLATION VLV RB 518 8
0.82 Functionality 177 ITE09201 REACTOR BLDG TEMP ELEM RB 518 19
> 0.30 Screened 178 ILT03631 CONDENSATE STORAGE TANK LEVEL XMTR YD 435 18
>Ž0.30 Screened 179 XTK0008 CONDENSATE STORAGE TANK YD 435 21 0.88 Sliding due to exceedance of base shear capacity.
180 ILT00477 SG A WIDE RANGE LEVEL XMTR RB 436 18
>Ž0.30 Screened, pending walkdown 181 1LT00487 SG B WIDE RANGE LEVEL XMTR RB 436 18
Ž_0.30 Screened, pending walkdown 182 ILT00497 SG C WIDE RANGE LEVEL XMTR RB 436 18
>Ž0.30 Screened, pending walkdown 183 IPTO0402 PT-402 RC WIDE RNG. PRESS. TRANSMITTER RB 412 18
>_ 0.30 Screened, pending walkdowvn 184 ITEO0410 RC LOOP A COLD LEG TEMPERATURE ELEMENT RB 412 19
Ž 0.30 Screened, pending walkdown Page 63 of 67
TR00080-005 REVISION 1 Table B-2: ESEL Rule-of-Box Items IFI03525 TDEFP DISCHARGE FLOW INDICATOR CB 463 XCP6 103 IFI04466 SWIBOOSTER PUMP A DISCHARGE CB 463
- XCP6103 FLOW TND) 1FI04468 RBCU RETURN HDR A FLOW CB 463 XCP6 103 INDICATOR IP100950 CONTAINMENT PRESSURE, PRESSURE CB 463 XCP6 103 INDI 1PI04528 SW FROM RBCU LOOP A PRESS CB 463 XCP6103 INDICATOR ITI04467 RBCU RETURN HDR A TEMP CB 463 XCP6 103 INDICATOR ITI09201A REACTOR BLDG AMBIENT TEMP CB 463 XCP61O3 INDICATOR TPP0008-PP1 EF PUMP TURBINE LUBE OIL ROTARY lB 412 TPP0008 PUMP TPPOO08-SC1 EF PUMP TURBINE SPEED CONTROL IB 412 TPP0008 GOVERNOR XFN0038A-M BA3TI&CHG RM All UNIT A SUPPLY IB.
423 XAIIO024A FAN MOTOR XFNO039A-M BATTERY ROOM EXHAUST FAN A IB 423 XFNO039A MOTOR XFN0038A BATT&CHG RM AIR HANDLING UNIT A IB 423 XAI-0024A SUIP FAN XFN0064A REACTOR BLDG COOLING UNIT lA RB 514 XAAO0001A EMERG FAN ILI00477 SG A WD RGE LEVEL INDICATOR CB 463 XCP6112 ILI00487 SG B WD RGE LEVEL INDICATOR CB 463 XCP6 112 ILI00497 SG C WD RANGE LEVEL INDICATOR CB 463 XCP6112 IPI00402B RCS WIDE RANGE PRESSURE CB 463 XCP6 106 INDICATOR ITI00410 RC LOOP A COLD LEG TEMP CB.
463 XCP6 106 INDICATOR Notes Valve operators on the ESEL are not listed above. The parent for each valve operator is the corresponding valve.
Page 64 of 67
Document Control Desk Attachment II CR-i15-03436 RC-1 5-0133 Page 1 of 1 VIRGIL C. SUMMER NUCLEAR STATION (VCSNS) UNIT 1 Attachment II Regulatory Commitments The following table identifies those actions committed to by SCE&G, Virgil C. Summer Nuclear Station in this document. Any other statements in this submittal are provided for information purposes and are not considered to be commitments.
Please direct questions regarding these commitments to Mr. Bruce L. Thompson, Manager, Nuclear Licensing, (803) 931-5042.
Action #
Commitment Due Date/ Event I
Complete walkdowns of Prior to completion of Fall 2015 Inaccessible Items listed in Table Outage 7.1 of Expedited Seismic Evaluation Process report prior to end of Fall 2015 refueling outage.
2 Submit letter to NRC stating February 1,2016 walkdowns have been completed and provide HCLPF results in Attachment B of Expedited Seismic Evaluation Process report.
3 Submit letter to NRC stating all Expedited Seismic Evaluation Process report Modifications, Actions 1 through 9 of Section 8.4, are complete.
60 days following completion of the second Unit 1 refueling outage after December 31,2014 (Tentative Spring 2017)