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| | issue date = 02/19/2008 | | | issue date = 02/19/2008 |
| | title = Response to Request for Additional Information on the Proposed Amendment for Loss of Voltage Signal (Lovs) Relay Replacement, Proposed Change Number (PCN) | | | title = Response to Request for Additional Information on the Proposed Amendment for Loss of Voltage Signal (Lovs) Relay Replacement, Proposed Change Number (PCN) |
| | author name = Ridenoure R T | | | author name = Ridenoure R |
| | author affiliation = Southern California Edison Co | | | author affiliation = Southern California Edison Co |
| | addressee name = | | | addressee name = |
Revision as of 15:32, 12 July 2019
Letter Sequence Response to RAI |
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MONTHYEARML0713005002007-05-15015 May 2007 (Songs 2 and 3) - Request for Additional Information on the Proposed Amendment to Revise Loss of Voltage Signal Relay Replacement Project stage: RAI ML0725502572007-09-24024 September 2007 Request for Additional Information on the Proposed Amendment to Revise Loss of Voltage Signal Relay Replacement (Tac Nos. MD5112 and MD5113) Project stage: RAI ML0731200832007-11-0505 November 2007 Calculation E4C-015, Revision 0, Tlu Calculation for Loss of Voltage Relays at Class 1E 4.16 Kv Switchgear Project stage: Other ML0731200822007-11-0505 November 2007 Supplement 1 and Response to Requests for Additional Information on the Proposed Amendment for Loss of Voltage Signal (Lovs) Relay Replacement, Proposed Change Number (PCN) 577 Project stage: Supplement ML0801605092008-01-15015 January 2008 Response to Request for Additional Information on the Proposed Amendment for Loss of Voltage Signal (Lovs) Relay Replacement, Proposed Change Number (PCN-577) Project stage: Response to RAI ML0805203642008-02-19019 February 2008 Response to Request for Additional Information on the Proposed Amendment for Loss of Voltage Signal (Lovs) Relay Replacement, Proposed Change Number (PCN) Project stage: Response to RAI ML0806001622008-03-25025 March 2008 Tech Spec Pages for Amendment Nos. 216 and 208, Revise Technical Specification Surveillance Requirements 3.3.7.3.a and 3.8.1 Degraded Voltage Function Values Project stage: Other ML0806001502008-03-25025 March 2008 Issuance of Amendment Nos. 217 and 209, Revise Technical Specification Surveillance Requirements 3.3.7.3.a and 3.8.1 Degraded Voltage Function Values Project stage: Approval 2007-09-24
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Category:Letter
MONTHYEARIR 05000361/20240042024-08-0909 August 2024 NRC Inspection Report 05000361/2024004 and 05000362/2024004 ML24191A2472024-07-0202 July 2024 (Songs), Units 1, 2, and 3, and the Independent Spent Fuel Storage Installation - Revision to the ISFSI-Only Emergency Plan and Associated Changes to Emergency Plan Implementing Procedures ML24151A6482024-06-0303 June 2024 Changes in Reactor Decommissioning Branch Project Management Assignments for Some Decommissioning Facilities ML24141A0802024-05-15015 May 2024 (Songs), Units 1, 2 and 3 and Independent Spent Fuel Storage Installation - 2023 Annual Radiological Environmental Operating Report IR 05000361/20240022024-04-0101 April 2024 – NRC Inspection Report 050-00361/2024-002 and 050-00362/2024-002 ML24094A0642024-03-27027 March 2024 Independent Spent Fuel Storage Installation, Decommissioning Funding Status Report 2023 ML24065A0152024-02-28028 February 2024 Generation Station Units 1, 2 and 3, Annual Radioactive Effluent Release Report for Independent Spent Fuel Storage Installation 2023 ML24044A0812024-02-14014 February 2024 LTR-24-0008: NRC Response to Paul Blanch Email Safety of Spent Nuclear Fuel at SONGS ISFSI IR 05000361/20240012024-02-13013 February 2024 NRC Inspection Report 050-00361/2024-001 and 050-00362/2024-001 (1) ML24037A0542024-01-30030 January 2024 (Songs), Units 2 and 3, Submittal of Annual Corporate Financial Reports ML24022A1492024-01-17017 January 2024 Independent Spent Fuel Storage Installation, Revision 4 to the Physical Security Plan IR 05000361/20230062023-11-29029 November 2023 NRC Inspection Report 05000361/2023-006 and 05000362/2023-006 ML23333A0682023-11-22022 November 2023 (SONGS) Units 1, 2, 3 and Independent Spent Fuel Storage Installation - Notification of Change in Nuclear Officer IR 05000361/20230052023-10-11011 October 2023 NRC Inspection Report 05000361/2023005 and 05000362/2023005 ML23276A5942023-09-28028 September 2023 and Independent Spent Fuel Storage Installation - Supplement to Decommissioning Funding Status Reports ML23268A0922023-09-20020 September 2023 Generation Station, Units 1, 2 and 3, and the Independent Spent Fuel Storage Facility (ISFSI) - Re-Registration of Dry Fuel Storage Casks for Amended Certificate of Compliance No. 1040 IR 05000361/20230012023-09-13013 September 2023 NRC Inspection Report 05000361 2023-001 and 05000362 2023-004 ML23240A5372023-08-18018 August 2023 Confirmatory Survey Activities Summary and Results for the Unit 2 and 3 Intake Structures at the San Onofre Nuclear Generating Station San Clemente CA ML23129A1802023-06-14014 June 2023 Cover Letter to State of CA on Draft EA Regarding San Onofre ISFSI Updated DFPs IR 05000361/20230032023-05-31031 May 2023 NRC Inspection Report 05000361/2023003 and 05000362/2023003 IR 05000361/20230022023-05-23023 May 2023 NRC Inspection Report 05000361/2023-002 and 05000362/2023-002 ML23137A1032023-05-11011 May 2023 (Songs), Units 1, 2 and 3, and Independent Spent Fuel Storage Installation - 2022 Annual Radiological Environmental Operating Report ML23123A0932023-04-28028 April 2023 (Songs), Units 1, 2 and 3, Submittal of Annual Radioactive Effluent Release Report - 2022 ML23230A0882023-04-10010 April 2023 Independent Spent Fuel Storage Installation - Decommissioning Quality Assurance Plan ML23094A1332023-03-29029 March 2023 Nuclear Property Insurance ML23094A1272023-03-29029 March 2023 Independent Spent Fuel Storage Installation - 10 CFR 50.82(a)(8)(v and VII) and 10 CFR 72.30(c) Decommissioning Funding Status Report 2021 ML23062A1172023-02-28028 February 2023 Generation Station Units 1, 2 and 3, Annual Radioactive Effluent Release Report for Independent Spent Fuel Storage Installation - 2022 ML22361A1022023-02-24024 February 2023 Reactor Decommissioning Branch Project Management Changes for Some Decommissioning Facilities and Establishment of Backup Project Manager for All Decommissioning Facilities ML23059A2812023-02-22022 February 2023 (Songs), Units 1, 2 and 3, 2022 Annual Turtle Incidental Take Report ML23046A3792023-02-22022 February 2023 NRC Inspection Report 050-00361/2023-001 and 050-00362/2023-001 ML23045A2022023-02-0909 February 2023 Submittal of Annual Corporate Financial Reports for San Onofre Nuclear Generating Station (SONGS) Units 2 and 3 for Fy Ending June 30, 2022 ML22287A1352023-01-0505 January 2023 Issuance of Exemption from Title 10 of the Code of Federal Regulations Part 72.106(B), Independent Spent Fuel Storage Installation Controlled Area Boundary (L-2021-LLE-0056) ML22348A0622023-01-0404 January 2023 NRC to SCE, Transmittal of the National Marine Fisheries Service'S December 12, 2022, Letter of Concurrence for Decommissioning of San Onofre Nuclear Generating Statiion, Units 2 and 3 IR 05000206/20220062022-12-15015 December 2022 NRC Inspection Report 05000206/2022006, 05000361/2022-006, and 05000362/2022-006 ML22347A2122022-12-12012 December 2022 NMFS to NRC, Endangered Species Act Section 7(a)(2) Concurrence Letter for Decommissioning of the San Onofre Nuclear Generating Station ML22340A6652022-12-0505 December 2022 Letter from John Fassell, Chief; Re., State of California Department of Public Health Review and Comments on SONGS Draft Environmental Assessment ML22333A8192022-11-21021 November 2022 Submittal of San Onofre Nuclear Generating Station, Units 2 and 3, Defueled Safety Analysis Report, Revised November 2022 IR 05000361/20220052022-11-17017 November 2022 NRC Inspection Report 05000361/2022-005 and 05000362/2022-005 ML22301A1462022-10-20020 October 2022 Report of Violations of the National Pollutant Discharge Elimination System Permit San Onofre Nuclear Generating Station (Songs), Units 2 and 3 ML22277A0162022-09-29029 September 2022 Independent Spent Fuel Storage Installation Response to Request for Additional Information Regarding Request for Exemption from 10 CFR 72.106(b) IR 05000361/20220042022-09-26026 September 2022 NRC Inspection Report 05000361/2022-004 and 05000362/2022-004 ML22238A0552022-08-29029 August 2022 U.S. Nuclear Regulatory Commission'S Analysis of Southern California Edison'S Decommissioning Funding Status Report for San Onofre Nuclear Generating Station, Units 1, 2, and 3 ML22234A1602022-07-31031 July 2022 Final Report Per 10 CFR Part 21, Degraded Snubber SF1154 Hydraulic Fluid Batch No. 18CLVS431 ML22207B8612022-07-26026 July 2022 NRC (Public) Inspection Report 05000361/2022003; 05000362/2022003 IR 05000361/20220032022-07-26026 July 2022 NRC Inspection Report (Public) 05000361-2022003 and 05000362-2022003 (002) IR 05000361/20220022022-05-12012 May 2022 NRC Inspection Report 05000361/2022-002 and 05000362/2022-002 ML22136A0842022-05-12012 May 2022 Independent Spent Fuel Storage Installation, 2021 Annual Radiological Environmental Operating Report ML22122A0402022-04-28028 April 2022 (Songs), Units 1, 2 and 3 - Annual Radioactive Effluent Release Report - 2021 ML22105A5662022-04-0505 April 2022 20053 Letter - OI Closure to Licensee - Wrongdoing Signed ML22081A1692022-03-31031 March 2022 SONGS Application Acceptance Proposed Exemption from Title 10 of the CFR, Part 72.106(b), ISFSI Controlled Boundary 2024-08-09
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JSOUTHERN CALIFORNIA EDISON'An EDISON INTERNATIONAL Company Ross T. Ridenoure VP and Site Manager San Onofre Nuclear Generating Station February 19, 2008 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001
Subject:
Reference:
Docket Nos. 50-361 and 50-362 Response to Request for Additional Information on the Proposed Amendment for Loss of Voltage Signal (LOVS) Relay Replacement, Proposed Change Number (PCN) 577 (TAC Nos. MD5112 and MD5113)San Onofre Nuclear Generating Station, Units 2 and 3 March 30, 2007 letter from B. Katz (SCE) to Document Control Desk (NRC),
Subject:
San Onofre Nuclear Generating Station Units 2 and 3, Docket Nos. 50-361 and 50-362, Proposed Change Number (PCN)-577, LOVS Relay Replacement
Dear Sir or Madam:
By letter dated March 30, 2007 Southern California Edison (SCE) submitted the referenced Proposed Change Number (PCN)-577, LOVS Relay Replacement.
In an e-mail message dated January 16, 2008, NRC staff requested additional information regarding the submittal.
The NRC staff question and the SCE response are contained in the enclosure.
The only commitment contained herein is to the action stated in the enclosure.
If you have any questions or require additional information, please contact Ms. Linda T.Conklin at (949) 368-9443.Sincerely,
Enclosure:
As Stated Mail Drop D45 P.O. Box 128 San Clemente, CA 92672 949-368-6255 PAX 86255 Fax: 949-368-6183 Ross.Ridenoure@sce.com A-60 f Document Control Desk February 19, 2008 cc: E. E. Collins, Regional Administrator, NRC Region IV N. Kalyanam, NRC Project Manager, San Onofre Units 2 and 3 C. C. Osterholtz, NRC Senior Resident Inspector, San Onofre Units 2 and 3 S. Y. Hsu, California Department of Public Health, Radiological Health Branch ENCLOSURE NRC QUESTION The licensee's plant procedures should meet the requirements specified in Notes 1 and 2 of the September 7, 2005 NRC letter to the Nuclear Energy Institute Setpoint Methods Task Force, including the clarifications provided in Section 4 of the letter.SCE RESPONSE SCE commits to the following:
If the as-found relay setpoint is conservative with respect to the Allowable Value but outside its predefined as-found acceptance criteria band, then the relay shall be evaluated to verify that it is functioning as required before returning the relay to service. If the as-found relay setpoint is not conservative with respect to the Allowable Value, the relay shall be declared inoperable.
The relay setpoint shall be reset to a value that is within the as-left tolerance of the nominal relay setpoint; otherwise, the relay shall be declared inoperable.
If the as-found trip setpoint (TSP) is found to be non-conservative with respect to the allowable value (AV) specified in the Technical Specifications (TSs), the relay shall be declared inoperable and the associated TS action statement followed.If the as-found TSP is found to be conservative with respect to the AV, and outside the as-found predefined acceptance criteria band, but SCE is able to determine that the relay is functioning as required and can be reset to within the setting tolerance of the limiting TSP, or a value more conservative than the limiting TSP, then the relay may be considered operable.
If it cannot be determined that the relay is functioning as required, it shall be declared inoperable and the associated TS actions followed.If the as-found TSP is outside the as-found predefined acceptance criteria band, the condition shall be entered into the corrective action program for further evaluation.
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