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MONTHYEARML20263J0711972-07-10010 July 1972
Schematic Diagram:Bistable Trip String,Module Interlock, Test Trip Subassembly D (48 of 50), as-built
Project stage: Other
ML20263J0781972-07-10010 July 1972
Schematic Diagram:Bistable Trip String,Module Interlock, Test Trip Subassembly C
Project stage: Other
ML20263J0731972-07-10010 July 1972
Schematic Diagram:Bistable Trip String,Module Interlock, Test Trip Subassembly a, as-built
Project stage: Other
ML20263J0751972-07-18018 July 1972
Schematic Diagram:Bistable Trip String,Module Interlock, Test Trip Subassembly B (46 of 50), as-built
Project stage: Other
ML20263J0831979-06-0606 June 1979
Piping & Instrument Diagram HP & Auxiliary Turbines System. Sheet 1 of 3.Revision Date Illegible
Project stage: Other
ML19208D6001979-09-20020 September 1979
Summary of 790830 Meeting W/Utils in Bethesda,Md Re Preliminary Results of Auxiliary Feedwater Sys Reliability Study
Project stage: Meeting
ML19250A8351979-10-18018 October 1979
Responds to Requiring Util Commitment to Action Re NUREG-0578, TMI-2 Lessons Learned Task Force Status Rept. Forwards Implementation Plan
Project stage: Request
ML19210D9031979-11-19019 November 1979
Responds to NRC 791030 Request for Review of Util 791018 Response to NUREG-0578 Re Auxiliary Feedwater Sys.Sys Satisfies NRC short-term Position.Backup Capabilities Ensure That Water Reaches once-through Steam Generator
Project stage: Request
ML16138A4231979-12-17017 December 1979
Notification of 791220 Meeting W/B&W & B&W Licensees in Bethesda,Md to Discuss Control Rod Guide Tube Wear
Project stage: Request
ML19290E2891980-02-19019 February 1980
Forwards Auxiliary Sys Branch Position Re Auxiliary Feedwater Sys & Request for Adddl Info as Part of Followup to B&W 1979 Plant Shutdown Orders
Project stage: Other
ML19305A9911980-02-23023 February 1980
Summary of 800212 & 791129 Meetings W/Licensee in Bethesda, MD Re long-term Upgrading Requirements for Site Auxiliary Feedwater Sys
Project stage: Meeting
ML16245A4951980-02-24024 February 1980
Summary of 791108 Meeting W/B&W Owners Group in Bethesda,Md Re Responses to IE Bulletin 79-05C
Project stage: Meeting
ML19296D6791980-02-26026 February 1980
Forwards Comments & Requirements for Continued Facility Auxiliary Feedwater Sys Upgrade.Commitment to Provide Requested Info &/Or Design Mods Must Be within 15 Days
Project stage: Other
ML19309A4911980-03-18018 March 1980
Responds to NRC Re Requirements for Continued Upgrade of Auxiliary Feedwater Sys.Util Will Update Auxiliary Feedwater Reliability Study & Will Submit New Tech Specs by 800501
Project stage: Other
ML19262D0211980-04-14014 April 1980
Withdraws 800308 Commitment Concerning Part B,Item 9 of NRC Re Proposed Mod of Auxiliary Feedwater Sys Operating Procedure A.51.Approval Would Imply Plant Could Be Safely Shutdown W/O Offsite Power or Diesel Generators
Project stage: Other
ML20263J0951980-04-21021 April 1980
Plant Areas Conduit Arrangement Plan at Turbine Deck. Sheet 2 of 2
Project stage: Other
ML20263J0911980-04-21021 April 1980
Turbine Building Arfa II Conduit & Tray Arrangement Plan at Ground & Mezzanine Floor. Sheet 2 of 2
Project stage: Other
ML20263J0991980-04-21021 April 1980
Turbine Building Area Conduit & Tray Arrangement Plan at Mezzanine Floor. Sheet 2 of 2
Project stage: Other
ML20263J1011980-04-21021 April 1980
Turbine Building Area Conduit & Tray Arrangement Plan at Ground Floor. Sheet 1 of 1
Project stage: Other
ML20263J1041980-04-21021 April 1980
Auxiliary Building Area - B Class II Conduits & Class I & II Tray Arrangement - Plan at Turbine Deck. Sheet 1 of 1
Project stage: Other
ML20263J0631980-04-25025 April 1980
885-NI/RPS - Schematic Turbine Trip Subassembly C
Project stage: Other
ML19323E3381980-05-14014 May 1980
Forwards Addl Info Re Auxiliary Feedwater Sys Per 800226 Request
Project stage: Other
ML19343A8121980-07-24024 July 1980
Auxiliary Feedwater Sys for Smud
Project stage: Other
ML20263J1081980-08-10010 August 1980
Cm&D Equipment OTSG Level Sensing
Project stage: Other
ML20263J0861980-08-20020 August 1980
Figure 3.1-1 Auxiliary Feedwater System P&Jid
Project stage: Other
ML20263J0801980-09-0808 September 1980
Piping & Instrument Diagram HP & Auxiliary Turbines System. Revision Illegible
Project stage: Other
ML20263J0681980-09-10010 September 1980
885-NI/RPS - Schematic Main Feed Water Pump Trip Subassembly a
Project stage: Other
ML20263J0661980-09-10010 September 1980
885-NI/RPS - Schematic Turbine Trip Subassembly B
Project stage: Other
ML20263J0591980-09-10010 September 1980
885-NI/RPS - Schematic Turbine Trip Subassembly C
Project stage: Other
ML20263J0561980-09-10010 September 1980
885-NI/RPS - Schematic Turbine Trip Sub Assembly
Project stage: Other
ML20263J0621980-09-10010 September 1980
885-NI/RPS - Schematic Turbine Trip Subassembly E
Project stage: Other
ML19343A8101980-11-17017 November 1980
Forwards B&W Upgraded Design, Auxiliary Feedwater Sys for Smud. Requests NRC Approval Prior to Design Freeze & Preparation of Equipment Purchase Specs on 801205.Oversize Drawings Available in Central Files
Project stage: Other
ML19339C9401981-01-22022 January 1981
Advises That Util 801117 Preliminary Auxiliary Feedwater Sys Upgrade Design Is Acceptable.Licensee Must Provide Schedules for Design Submittals,Tech Specs & Final Implementation
Project stage: Other
ML18085B0901981-02-10010 February 1981
Ltr to All Operating PWR Licensees Requesting Info on Auxiliary Feedwater Sys Seismic Design.Forwards Request for Addl Info,List of Actions Requested of Licensees W/O Seismically Qualified Sys & Results of NRC Walkdowns
Project stage: RAI
ML20263J1181981-02-20020 February 1981
EFIC Logic 3 Steam Generator Pressure
Project stage: Other
ML20263J1241981-02-20020 February 1981
EFIC Logic 6 Vector Logic
Project stage: Other
ML20263J1291981-02-20020 February 1981
EFIC Logic 5 Initiate Logic
Project stage: Other
ML20263J1211981-02-20020 February 1981
Trip Logic
Project stage: Other
ML20263J1321981-02-20020 February 1981
EFIC Trip Test Philosophy
Project stage: Other
ML20263J1261981-02-20020 February 1981
EFIC Logic 12 Steam Generator Control
Project stage: Other
ML20263J1421981-02-20020 February 1981
EFIC Symbology
Project stage: Other
ML20263J1101981-02-20020 February 1981
EFIC Logic 1 Steam Generator a Level Input
Project stage: Other
ML20263J1141981-02-20020 February 1981
EFIC Logic 2 Steam Generator B Level Input
Project stage: Other
ML20040B4231981-04-30030 April 1981
Auxiliary Feedwater Sys Upgrade Reliability Analysis for Rancho Seco Nuclear Generating Station Unit 1
Project stage: Other
ML20009C0021981-07-13013 July 1981
Responds to 810210 Generic Ltr 81-14 Re Seismic Qualification of Auxiliary Feedwater Sys.Analysis Methodology for Seismic Class I Sys Uses Response Spectrum Approach
Project stage: Other
ML20009C5331981-07-17017 July 1981
Repeats & Notarizes Util 810713 Response to NRC 810210 Generic Ltr 81-14 Re Seismic Qualification of Auxiliary Feedwater Sys
Project stage: Other
ML20263J1531981-09-0808 September 1981
One Line Diagram 4160 Volt System. Sheet 6.No Revision Date
Project stage: Other
ML20263J0881981-09-0808 September 1981
Anticipatory Reactor Trip System Instrument Installation. Sheet 1 of 2
Project stage: Other
ML20263J1481981-09-0808 September 1981
One Line Diagram 4160 Volt System. Sheet 7.No Revision Date
Project stage: Other
ML20031F8851981-10-14014 October 1981
Suppls Responding to Generic Ltr 81-14.Describes Auxiliary Feedwater Sys,Explains How Sys Operates During Loss of Offsite Power & Cites FSAR Refs Re Seismic Qualification of Specific Sys Components
Project stage: Other
1980-04-21
[Table View] |
Text
.o C suuo SACRAMENTO MUNICIPAL UTILITY DISTRICT O 6201 s street, Box 15830 sacramento, California 95813; (916) 452 3211 July 17, 1981
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ATTENTION DARRELL G EISENHUT DIRECTOR U
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WASHINGTON D C 20555 cv DOCKET 50-312 RANCHO SECO NUCLEAR CENERATING STATION UNIT NO 1 AUXILIARY FEEDWATER SYSTEM SEISMIC QUALIFICATION Please refer to our response dated July 13, 1981, to your February 10, 1981 Generic Letter No. 81-14.
Our July 13, 1981 response was not notarized. This letter repeats our earlier response and is properly notarized in accordance with the requirements of the Generic Letter.
The Sacramento Municipal Utility District has reviewed your letter of February 10, 1981 (Generic Letter No. 81-14), requesting information on the -aismic qualification of the Rancho Seco Unit 1 auxiliary feed-water.,ystem.
The ;ntire Auxiliary Feedwater (AW) System at Rancho Seco was designed ar.a constructed to Seiraic Category 1 requirements. The analytical techniques, testing, evaluation methods and acceptance criteria used in the design of the AW System are consistent with the methods used for other safety-grade systems at Rancho Seco Unit 1.
The AW System has been included within the scope of seismic related Bulletins 79-02, 79-04, 79-14, 80-11, and IE Information Notice 80-21.
The analysis methodology for Seismic Class 1 systems such as the AW System uses the " response spectrum" approach. The response spectrum approach uses the natural period, mode, shape and dempaning factors that are characteristic of the system and equipment, to determine the dynamic loads that would result from a seismic event. General primary stresses, including those resulting from gravity loads, operating loads N
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DARRELL G EISENHUT Page 2 Jaly 17, 1981 and operating temperatures, are combined with the seismic stresses resulting from the amplified earthquake response spectrum. The combination of stress is required to be below allowable stress set forth in the appropriate codes and standards, such as ASME Section III. A more detailed description of the methodology is given in Appendix 5B of the FSAR.
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.I hn. Mattimoe Assistant General Manager and Chief Engineer Sworn to and subscribed before me this 17th day of July, 1981.
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