Letter Sequence RAI |
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TAC:MF0450, DC Electrical Rewrite - Update to TSTF-360, Relocate Surveillance Frequencies to Licensee Control - RITSTF Initiative 5B, DC Electrical Rewrite (Approved, Closed) TAC:MF0451, DC Electrical Rewrite - Update to TSTF-360, Relocate Surveillance Frequencies to Licensee Control - RITSTF Initiative 5B, DC Electrical Rewrite (Approved, Closed) TAC:MF0452, DC Electrical Rewrite - Update to TSTF-360, Relocate Surveillance Frequencies to Licensee Control - RITSTF Initiative 5B, DC Electrical Rewrite (Approved, Closed) |
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MONTHYEARML13002A1972012-12-26026 December 2012 License Amendment Request for Adoption of Technical Specifications Task Force (TSTF) Traveler TSTF-500, Revision 2, DC Electrical Rewrite - Update to TSTF-360 Project stage: Request ML13032A5372013-02-0101 February 2013 Acceptance Review Email, License Amendment Request to Adopt TSTF-500, Revision 2, DC Electrical Rewrite - Update to TSTF-360 Project stage: Acceptance Review ML13177A2982013-06-26026 June 2013 Request for Additional Information Email, License Amendment Request to Adopt TSTF-500, Revision 2, DC Electrical Rewrite - Update to TSTF-360 Project stage: RAI ML14115A0452014-06-25025 June 2014 Issuance of Amendment Nos. 193, 193, and 193, Adopt Technical Specification Task Force (TSTF)-500, Revision 2, DC Electrical Rewrite - Update to TSTF-360 Project stage: Approval 2013-02-01
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Category:E-Mail
MONTHYEARML24267A2172024-09-23023 September 2024 (E-Mail) Palo Verde Nuclear Generating Station Units 1, 2, and 3 License Amendment Request to Revise the Technical Specifications 3.5.1 and 3.5.2 Safety Injection Tank Pressure Bands, and to Use GOTHIC Code ML24257A1012024-09-11011 September 2024 Request for Additional Information License Renewal Commitment for AMP of Alloy 600 Components ML24248A2632024-09-0404 September 2024 Acceptance Review of Palo Verde Nuclear Generating Station, Units 1, 2, and 3, Relief Request (RR) No. 71: Re?Submittal of RR?30 ML24242A2812024-08-26026 August 2024 RR72 Acceptance 08/27/24 - La Jr ML24221A2382024-08-0606 August 2024 Change in Estimated Review Schedule and Level of Effort for Palo Verde Units 1, 2, and 3 ML24143A1112024-05-20020 May 2024 Draft 2nd Round Request for RAIs Concerning LAR to Modify LCO for TS 3.5.2, LCO for TS 3.6.5, and Surveillance Requirements 3.5.1.2 and 3.5.2.2 for TS 3.5.1 and TS 3.5.2 ML24138A1112024-05-16016 May 2024 Draft 2nd Round Request for Additional Information (Rais) Concerning License Amendment Request (LAR) to Modify Limiting Condition for Operation (LCO) for Technical Specification (TS) 3.5.2 ML24123A2002024-05-0101 May 2024 (E-Mail) Draft 2nd Round Request for Additional Information Concerning License Amendment Request to Modify Limiting Condition for Operation (LCO) for Technical Specification (TS) 3.5.2, LCO for TS 3.6.5, 3.5.1.2 and 3.5.2.2 for TS 3.5.1, a ML24120A2612024-05-0101 May 2024 Email Acceptance Review of Requested Licensing Action License Renewal Commitment 23A, Alloy 600 Management Program Plan ML24114A2812024-04-19019 April 2024 Request for Additional Information (RAI-10150-R1) ML24103A1222024-04-11011 April 2024 – Acceptance of Requested Licensing Action Re_ License Amendment Request to Revise Technical Specifications 3 ML24011A1002024-01-10010 January 2024 March 2024 Emergency Preparedness Program Inspection - Request for Information ML23334A1612023-11-30030 November 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - RAIs Associated with License Renewal Commitment for Pressurizer Surge Line Welds Inspection Program to Manage Environmentally Assisted Fatigue ML23334A0072023-11-29029 November 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAIs for LAR That Revises TSs 3.5.1, SITs - Operating; 3.5.2, SIT Shutdown; 3.6.5, Containment Air Temperature; and SRs for TS 3.5.1, SITs Operating ML23298A1232023-10-25025 October 2023 NRR E-mail Capture - Palo Verde, Unit 1 - RAIs for Relief Request 70, Proposed Alternatives for Pressurizer Lower Shell Temperature Nozzle ML23243B0082023-08-31031 August 2023 NRR E-mail Capture - Action: Opportunity to Review and Comment on a New NRC Information Collection, 10 CFR Part 50.55a, Codes and Standards (3150-XXXX) ML23233A0132023-08-18018 August 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of License Renewal Commitment for Pressurizer Surge Line Welds Inspection Program to Manage Environmentally Assisted Fatigue ML23220A0512023-08-0303 August 2023 NRR E-mail Capture - Re Palo Verde 1, 2, and 3 - SUNSI Review of UFSAR, Rev. 22 ML23202A0162023-07-20020 July 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR to Revise TSs 3.5.1, SITs - Operating; 3.5.2, SIT Shutdown; 3.6.5, Containment Air Temperature; and SRs for TS 3.5.1, SITs Operating ML23143A1332023-05-23023 May 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR Revising TS 3.3.11 to Adopt TSTF-266-A, Rev. 3, Eliminate the Remote Shutdown System Table of Instrumentation and Controls ML23130A0132023-05-10010 May 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review for Authorized Use of Mururoa Supplied Air Suits (Models V4F1 and MTH2) Pursuant to 10 CFR 20.1703 and 10 CFR 20.1705 ML23017A0932023-01-17017 January 2023 NRR E-mail Capture - Palo Verde - Acceptance of License Amendment Request Regarding Adoption of TSTF-107, Separate Control Rods That Are Untrippable Versus Inoperable (L-2022-LLA-0181) ML23013A0632023-01-13013 January 2023 NRR E-mail Capture - Palo Verde Unit 1 -Request for Additional Information - U1R23 Inspection Summary Report for Steam Generator Tubing ML22348A1672022-12-14014 December 2022 March 2023 Emergency Preparedness Exercise Inspection - Request for Information ML22339A2372022-12-0505 December 2022 NRR E-mail Capture - Palo Verde Unit 1 Request for Additional Information - U1R23 Inspection Summary Report for Steam Generator Tubing ML22173A0682022-06-17017 June 2022 Email Concurrence on SE Input for Columbia Pltr LAR ML22167A1872022-06-16016 June 2022 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Revised Acceptance Review of LAR to Adopt TSTF-567, Add Containment Sump TS to Address GSI-191 Issues ML22136A0922022-05-16016 May 2022 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR to Adopt TSTF-487-A, Revision 1, Relocate DNB Parameters to the COLR ML22075A1902022-03-16016 March 2022 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR to Adopt TSTF-567, Add Containment Sump TS to Address GSI-191 Issues ML22055A5842022-02-24024 February 2022 NRR E-mail Capture - Palo Verde, Unit 3 - Final RAIs for 22nd Refueling Outage (Spring 2021) Steam Generator Tube Inservice Inspection Report ML22034A0132022-02-0202 February 2022 NRR E-mail Capture - Palo Verde, Unit 2 - Verbal Approval of RR-69 to Extend Containment Tendon Inspection from 2/8/22 to 6/8/22 ML22032A0312022-01-31031 January 2022 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review for an Exemption Regarding Elimination of Dafas Using RIPE Process ML22025A4012022-01-0303 January 2022 March 2022 Emergency Preparedness Program Inspection - Request for Information ML21333A1982021-11-19019 November 2021 NRC Review of PVNGS Training Needs Analysis and Training Required by Condition I of the Confirmatory Order EA-20-054 ML21306A1882021-10-18018 October 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Second Pre-submittal Meeting for the Proposed Exemption to Eliminate Dafas Using RIPE Process ML21272A0592021-09-28028 September 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - SUNSI Review of UFSAR, Rev. 21 ML21264A1352021-09-17017 September 2021 NRR E-mail Capture - Palo Verde 1, 2 and 3 - Acceptance Review of LAR Associated with Permanent Extension of Containment ILRT Frequency to 15 Years (Type a) and CIV Leak Rate Test Frequency to 75 Months (Type C) ML21237A0762021-08-25025 August 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of RR-67, Request for Alternative Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection ML21228A0082021-08-16016 August 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of an LAR for Administrative Changes to Technical Specifications ML21228A1042021-08-12012 August 2021 RR-67, Request for Alternative Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection (EPID L-2021-LLR-0050) (Email) ML21237A5172021-08-10010 August 2021 Email to PV Licensee and Palo Verde Nuclear Generating Station, Units 1, 2 and 3 - Notification of Inspection of the Licensees Implementation Industry Initiative Associated with the Open Phase Condition (NRC Bulletin 2012-01) and Request Fo ML21160A1442021-06-0909 June 2021 NRR E-mail Capture - Palo Verde 1 and, 2 - Acceptance Review for Order Approving Transfers of Control of Licenses for Minority Interests Subject to Expiring Leases ML21154A0082021-05-26026 May 2021 NRR E-mail Capture - Palo Verde 1, 2 and 3 - Official RAIs for LAR Associated with Permanent Extension of Containment ILRT Frequency to 15 Years (Type a) and CIV Leak Rate Test Frequency to 75 Months (Type C) ML21146A3342021-05-14014 May 2021 ISFSI - Final Package for an Order Associated with Indirect Transfers of Control of Licenses from Pnm to Avangrid ML21132A2372021-05-12012 May 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3, and ISFSI - Final Package for an Order Associated with Indirect Transfers of Control of Licenses from Pnm to Avangrid ML21103A3632021-04-13013 April 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review for Indirect Transfer of Control of Licenses Pursuant to 10 CFR 50.80 and 10 CFR 72.50 ML21064A2372021-03-0303 March 2021 ISI Request for Information Rls ML21053A0262021-02-22022 February 2021 NRR E-mail Capture - Palo Verde 1, 2 and 3 - Acceptance Review of LAR Associated with Permanent Extension of Containment ILRT Frequency to 15 Years (Type a) and CIV Leak Rate Test Frequency to 75 Months (Type C) ML21043A1462021-02-11011 February 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAI for an Order Associated with Indirect License Transfer from Public Service Company of New Mexico to Avangrid, Inc ML21023A0212021-01-13013 January 2021 PVNGS PI&R Request for Information RA 2024-09-04
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML24257A1012024-09-11011 September 2024 Request for Additional Information License Renewal Commitment for AMP of Alloy 600 Components ML24143A1112024-05-20020 May 2024 Draft 2nd Round Request for RAIs Concerning LAR to Modify LCO for TS 3.5.2, LCO for TS 3.6.5, and Surveillance Requirements 3.5.1.2 and 3.5.2.2 for TS 3.5.1 and TS 3.5.2 ML24123A2002024-05-0101 May 2024 (E-Mail) Draft 2nd Round Request for Additional Information Concerning License Amendment Request to Modify Limiting Condition for Operation (LCO) for Technical Specification (TS) 3.5.2, LCO for TS 3.6.5, 3.5.1.2 and 3.5.2.2 for TS 3.5.1, a ML24114A2812024-04-19019 April 2024 Request for Additional Information (RAI-10150-R1) ML24011A1002024-01-10010 January 2024 March 2024 Emergency Preparedness Program Inspection - Request for Information ML23334A1612023-11-30030 November 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - RAIs Associated with License Renewal Commitment for Pressurizer Surge Line Welds Inspection Program to Manage Environmentally Assisted Fatigue ML23334A0072023-11-29029 November 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAIs for LAR That Revises TSs 3.5.1, SITs - Operating; 3.5.2, SIT Shutdown; 3.6.5, Containment Air Temperature; and SRs for TS 3.5.1, SITs Operating ML23298A1232023-10-25025 October 2023 NRR E-mail Capture - Palo Verde, Unit 1 - RAIs for Relief Request 70, Proposed Alternatives for Pressurizer Lower Shell Temperature Nozzle ML23031A3392023-01-31031 January 2023 In-service Inspection Request for Information ML23013A0632023-01-13013 January 2023 NRR E-mail Capture - Palo Verde Unit 1 -Request for Additional Information - U1R23 Inspection Summary Report for Steam Generator Tubing ML22348A1672022-12-14014 December 2022 March 2023 Emergency Preparedness Exercise Inspection - Request for Information ML22339A2372022-12-0505 December 2022 NRR E-mail Capture - Palo Verde Unit 1 Request for Additional Information - U1R23 Inspection Summary Report for Steam Generator Tubing ML22272A3252022-09-29029 September 2022 Licensed Operator Positive Fitness-For-Duty Test Request for Additional Information ML22209A1752022-07-28028 July 2022 Inservice Inspection Request for Information ML22187A2632022-07-0606 July 2022 Notification of Inspection (NRC IR 05000528/2022004, 05000529/2022004 and 05000530/2022004) and Request for Information ML22067A2292022-03-0202 March 2022 Inservice Inspection Inspection PWR Request for Information ML22055A5842022-02-24024 February 2022 NRR E-mail Capture - Palo Verde, Unit 3 - Final RAIs for 22nd Refueling Outage (Spring 2021) Steam Generator Tube Inservice Inspection Report ML22035A3302022-02-10010 February 2022 Requests for Confirmation of Information for Exemption to Delete Diverse Auxiliary Feedwater Actuation System Based on Risk-Informed Process for Evaluations ML22025A4012022-01-0303 January 2022 March 2022 Emergency Preparedness Program Inspection - Request for Information ML21245A2222021-09-0101 September 2021 Request for Information ML21200A2392021-07-20020 July 2021 Docs Request AC - AA August 2021 ML21154A0082021-05-26026 May 2021 NRR E-mail Capture - Palo Verde 1, 2 and 3 - Official RAIs for LAR Associated with Permanent Extension of Containment ILRT Frequency to 15 Years (Type a) and CIV Leak Rate Test Frequency to 75 Months (Type C) ML21064A2372021-03-0303 March 2021 ISI Request for Information Rls ML21042B9692021-02-18018 February 2021 Notification of NRC Design Bases Assurance Inspection and Initial Request for Information ML21043A1462021-02-11011 February 2021 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAI for an Order Associated with Indirect License Transfer from Public Service Company of New Mexico to Avangrid, Inc ML21023A0212021-01-13013 January 2021 PVNGS PI&R Request for Information RA ML21011A1972021-01-12012 January 2021 Unit 2, and Unit 3 - Notification of an NRC Fire Protection Baseline Inspection (NRC Inspection Report 05000528/2021012, 05000529/2021012 and 05000530/2021012) and Request for Information ML20227A0992020-08-14014 August 2020 Licensed Operator Positive Fitness-For-Duty Test Request for Additional Information ML20118D1362020-04-28028 April 2020 Licensed Operator Positive Fitness-For-Duty Test Request for Additional Information ML20049A0992020-02-14014 February 2020 Notification of Cyber Security Inspection (NRC Inspection Report 05000528/2020401; 05000529/2020401; and 05000530/2020401) and Request for Information ML20049A0252020-02-12012 February 2020 NRR E-mail Capture - Palo Verde Nuclear Generating Station, Unit 1 - Official RAIs for License Amendment Request Associated with Changes to Emergency Plan Staffing Requirements ML20021A3172020-01-21021 January 2020 NRR E-mail Capture - Palo Verde Nuclear Generating Station, Unit 1 - Official RAIs for Relief Request 64, Impractical Examinations for the Third 10-Year ISI Interval ML19317D0782019-11-13013 November 2019 NRR E-mail Capture - Palo Verde 1 - Requests for Additional Information on Unit 1 21st Refueling Outage Steam Generator Tube Inspection Report ML19234A3202019-08-29029 August 2019 Redacted - Request for Additional Information for Amendment and Exemption Request to Support the Implementation of Framatome High Thermal Performance Fuel (EPID L-2018-LLA-0194; EPID L-2018-LLE-0010) ML19155A1842019-05-30030 May 2019 NRR E-mail Capture - Palo Verde Nuclear Generating Station, Unit 3 - Mvib Official RAIs for RR-63, Impractical Examinations for the Third 10-Year ISI Interval ML19095A6552019-04-0404 April 2019 NRR E-mail Capture - Palo Verde Nuclear Generating Station, Unit 3 - Mphb Official RAIs for RR-63, Impractical Examinations for the Third 10-Year ISI Interval ML19044A7342019-02-13013 February 2019 NRR E-mail Capture - Palo Verde1, 2, and 3 - Official Requests for Additional Information for RR 62, Third and Fourth 10-Year ISI Intervals, Proposed Alternative - Pressurizer Heat Sleeve Repairs ML19008A3612019-01-0808 January 2019 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAIs for LAR Associated with Response Time Testing of Pressure Transmitters ML18341A0252018-12-0303 December 2018 Notification of NRC Design Bases Assurance Inspection (Teams)(05000528/2019011, 05000529/2019011, and 05000530/2019011) and Initial Request for Information ML18271A0392018-10-0202 October 2018 Non Proprietary - Supplemental Information Needed for Acceptance of Requested License Amendments and Exemptions Implementation of Framatome High Thermal Performance Fuel (Epids L-2018-LLA-0194 and L-2018-LLE-0010) ML18221A5102018-08-23023 August 2018 Request for Additional Information License Amendment Request to Adopt Risk-Informed Completion Times (CAC Nos. MF6576, MF6577, and MF6578; EPID: L-2015-LLA-0001) ML18229A3132018-08-17017 August 2018 NRR E-mail Capture - Request for Additional Information Relief Request 58: Impractical Examinations for the Third 10-Year Inservice Inspection Interval Arizona Public Service Company Palo Verde Nuclear Generation Station, Unit 2 - Second Se ML18227A8672018-08-15015 August 2018 NRR E-mail Capture - Request for Additional Information Relief Request 58: Impractical Examinations for the Third 10-Year Inservice Inspection Interval Arizona Public Service Company Palo Verde Nuclear Generation Station, Unit 2 ML18124A0112018-05-0303 May 2018 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official Eeob RAIs for TSTF-505 (4b) LAR (CAC Nos. MF6576, MF6577, and MF6578; EPID L-2015-LLA-0001) ML18099A0072018-04-0606 April 2018 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Official RAIs for 10 CFR 50.69 LAR (CAC Nos. MF9971, MF9972, and MF9973; EPID L-2017-LLA-0276) ML18094B1122018-04-0404 April 2018 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Final RAIs for TSTF-505 (Initiative 4b) LAR (CAC Nos. MF6576, MF6577, and MF6578: EPID L-2015-LLA-0001) ML18066A7032018-03-0707 March 2018 Notification of Nrc Design Bases Assurance Inspection (Programs) 05000528/2018011, 05000529/2018011, and 05000530/2018011 Initial Request for Information ML17248A0162017-08-31031 August 2017 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Final RAI for RRs PRR-03, PRR-04 and PRR-05, Pump Testing ML17107A0052017-04-14014 April 2017 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Ngf LAR and Exemption RAIs (CAC Nos. MF8076 to MF8081) ML17082A4462017-03-28028 March 2017 PVNGS Units 1, 2, and 3 Transition to CE 16x16 Ngf - Draft RAIs Rev 3 2024-09-11
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Burkhardt, Janet From: Rankin, Jennivine Sent: Wednesday, June 26, 2013 11:28 AM To: Robert.Roehler@aps.com
Subject:
Request for Additional Information - TSTF-500, "DC Electrical Rewrite - Update to TSTF-360" Attachments: Request for Additional Information.doc
- Rob, By letter dated December 26, 2012 (Agencywide Documents Access and Management System Accession No.
ML13002A197), Arizona Public Service Company (APS) submitted a License Amendment Request (LAR) to adopt Technical Specifications Task Force (TSTF) Traveler TSTF-500, Revision 2, DC Electrical Rewrite -
Update to TSTF-360, with one variation at Palo Verde Nuclear Generating Station, Unit Nos. 1, 2, and 3 (PVNGS). The proposed amendment would revise Technical Specification (TS) Limiting Condition for Operation (LCO) 3.8.4, DC Sources - Operating, TS 3.8.5, DC Sources - Shutdown, and TS 3.8.6, Battery Parameters. In addition, new TS 5.5.19, Battery Monitoring and Maintenance Program, is being proposed for Section 5.5, Administrative Controls - Programs and Manuals.
The NRC staff has reviewed the information provided in the LAR and determined that additional information is required in order to complete its review.
A draft request for additional information (RAI) was transmitted on June 4, 2013, and a clarification call was held on June 25, 2013. Following the clarification call, it was determined that changes were necessary to the draft RAIs. As such, RAI#9 was modified to delete TS 3.8.4 RA [Required Action] A.1 and TS 3.8.5 RA A.1. In addition, RAI #12 was deleted in its entirety. Mr. Tom Weber of APS agreed to provide the response within 60 days of this email. Please treat this e-mail as formal transmittal of the RAI.
- Thanks, Jennie Jennie Rankin, Project Manager Palo Verde Nuclear Generating Station Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation 1
REQUEST FOR ADDITIONAL INFORMATION PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 LICENSE AMENDMENT REQUEST FOR ADOPTION OF TECHNICAL SPECIFICATIONS TASK FORCE (TSTF) TRAVELER TSTF-500, REVISION. 2, DC ELECTRICAL REWRITE - UPDATE TO TSTF - 360 DOCKET NOS. 50-528, 50-529, AND 50-530 By letter dated December 26, 2012 (Agencywide Documents Access and Management System Accession No. ML13002A197), Arizona Public Service Company (APS) submitted a License Amendment Request (LAR) to adopt Technical Specifications Task Force (TSTF) Traveler TSTF-500, Revision 2, DC Electrical Rewrite - Update to TSTF-360, with one variation at Palo Verde Nuclear Generating Station, Unit Nos. 1, 2, and 3 (PVNGS). The proposed amendment would revise Technical Specification (TS) Limiting Condition for Operation (LCO) 3.8.4, DC Sources - Operating, TS 3.8.5, DC Sources - Shutdown, and TS 3.8.6, Battery Parameters.
In addition, new TS 5.5.19, Battery Monitoring and Maintenance Program, is being proposed for Section 5.5, Administrative Controls - Programs and Manuals.
The NRC staff has reviewed the LAR and determined that the following additional information is needed to complete its review.
- 1. In Attachment 1, Section 1 of the LAR, the licensee proposed relocating the requirements of TS Table 3.8.6-1, Battery Surveillance Requirements, to the new TS 5.5.19, Battery Monitoring and Maintenance Program.
Confirm that the Table 3.8.6-1 Categories A, B, and C values (electrolyte level, float voltage, specific gravity) that will be relocated to TS 5.5.19, will continue to be controlled at their current levels in the Battery Monitoring and Maintenance Program and that action to restore deficient values will be implemented in accordance with the licensees corrective action program.
- 2. In Attachment 1, Section 2.2 of the LAR, the licensee states, The Enclosure of this submittal contains a letter from the manufacturer of the batteries used at PVNGS Units 1, 2, and 3 verifying the acceptability of using float current monitoring instead of specific gravity monitoring as an indication of the state-of-charge of the battery and that this will hold true over the life of the battery. The enclosed letter from the manufacturer dated June 13, 2012, indicated that 1) The concept of utilizing float current levels of a flooded, stationary string battery to determine state of charge throughout the life of the battery is reasonable. 2) There is a relationship between percentage of ampere-hours returned
following a successful discharge capacity test and battery state-of-charge. and 3) The charge current of each battery can be affected by impurity levels, age operating environment and maintenance history.
a) Confirm that the use of float current monitoring instead of specific gravity monitoring is a reliable and accurate indication of the state-of-charge for the PVNGS safety-related batteries.
b) Provide a summary of the evaluation used to establish the value of the float current at which the battery is capable of performing its design function considering the factors affecting the battery state-of-charge and the charge current mentioned in the letter from the manufacturer.
- 3. In Attachment 1, Section 2.2 of the LAR, the licensee stated that the connection resistance limit, which would be relocated to the TS 5.5.19, Battery Monitoring and Maintenance Program, is 30 micro ohms based on a maximum 20 millivolts drop assumption for intercell battery connections.
a) Clarify whether 30 micro ohms is the overall connection resistance limit or the resistance limit for each intercell connection, each inter-rack connection, each inter-tier connection, and each terminal connection.
b) Provide a summary table that includes current baseline resistance values or the battery manufacturers recommended resistance limits for each type of battery connections.
c) Provide the basis for the connection resistance values that you proposed relocating to TS 5.5.19.
- 4. In Attachment 1, Section 2.2 of the LAR, the licensee stated that APS will verify or revise the PVNGS Updated Final Safety Analysis Report (UFSAR) to include how a 5 percent design margin for the batteries corresponds to a 2 amperes (amps) float current value indicating that the battery is 95 percent charged consistent with the model application referenced in the TSTF-500.
Explain how maintaining a 5 percent design margin and 95 percent charge will ensure that the PVNGS safety-related batteries are fully charged (i.e., capable of performing their design function).
- 5. In Attachment 1, Section 2.3 of the LAR, the licensee proposed adopting TSTF-500 TS 3.8.5, new Condition A with the exception of the statement, AND the redundant subsystem battery and charger(s) operable, on the basis that it was not addressed in the NRC staff model safety evaluation. Per PVNGS TS Bases 3.8.5, only one Direct Current (DC) electrical power subsystem is required to be operable during shutdown.
However, per TSTF-500, Page 9, the new Condition A is included only when the plant-specific implementation of TS 3.8.5 may require both trains of the DC electrical power system to be operable.
a) Justify your request to adopt TS 3.8.5, Condition A even though PVNGS requires only one DC electrical power subsystem to be operable during shutdown.
b) Provide a technical justification for the proposed deviation (i.e., the partial adoption of new Condition A).
- 6. In Attachment 3 of the LAR, the licensee proposed adding new Condition D to TS 3.8.6 which would apply to a battery found with a pilot cell electrolyte temperature less than the minimum established design limit. The Required Action (RA) associated with new Condition D would require the licensee to restore the pilot cell electrolyte temperature to greater than or equal to minimum established design limits within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
a) Discuss how the battery room temperature is periodically monitored at PVNGS and provide the minimum frequency at which the temperature of the battery room is monitored.
b) Explain how the licensee would restore battery room temperature if it was outside the temperature limits.
c) Provide the method of selection of pilot cells at PVNGS.
d) In Section 8.3.2.1.2.1 of the PVNGS UFSAR, the licensee stated that initial battery capacity is at least 25% greater than required to allow for a battery replacement criterion of 80% rated capacity. Provide the margins (e.g., temperature, aging, and design) that were used to size each safety-related battery and confirm that these margins are still maintained at these levels.
- 7. In Attachment 3 of the LAR, the licensee proposed a float voltage limit of 2.07 Volts (V) in the TS 5.5.19, Battery Monitoring and Maintenance Program. TSTF-500 indicates a bracketed float voltage limit of 2.13V for this program.
Provide the basis for the proposed float voltage limit of 2.07 V.
- 8. In Attachment 3 of the LAR, the Completion Time (CT) for TS 3.8.4, new Condition C is 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. In attachment 4 of the LAR, the CT for TS 3.8.4, new Condition C is 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.
Clarify this apparent discrepancy.
- 9. In Attachment 3 of the LAR, the licensee proposed certain CTs for TS 3.8.4 RAs A.2, A.3, TS 3.8.5 RAs A.2, A.3, and TS 3.8.6 RA B.2. These CTs are bracketed values in TSTF-500.
Explain how these values are applicable to PVNGS.
- 10. The proposed change to SR 3.8.4.6 to verify each battery charger can recharge the battery to the fully charged state within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> is not consistent with PVNGS UFSAR 8.3.2.1.2.2 which requires that the battery charger be capable of recharging the battery to the fully charged state within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
Provide justification for the deviation from the PVNGS UFSAR.
- 11. In Attachment 3 of the LAR, the licensee proposed a battery cell float voltage limit of greater than or equal to 2.07 V which is reflected in TS 3.8.6 RA A.3, SR 3.8.6.5, and SR 3.8.6.8. However, the current TS Bases for TS Table 3.8.6-1 states that the Category C allowable value for float voltage is based on vendor recommendations which state that a cell voltage of 2.07 V or below, under float conditions and not caused by elevated temperature of the cell, indicates internal cell problems and may require cell replacement.
Justify the deviation from the vendors recommendations and current TS Table 3.8.6-1.