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MONTHYEARML13310A9171983-08-26026 August 1983
Notifies That Proposed Change to Tech Specs Re Battery Surveillance Requirements Will Be Submitted in Oct 1983. Results of Recent 60-month Battery Performance Test Will Also Be Delayed Due to Efforts Involved
Project stage: Request
ML13310B0951983-11-28028 November 1983
Application to Amend License DPR-13,consisting of Proposed Change 126 to Tech Specs,Revising Limiting Conditions for Operation & Corresponding Surveillance Requirements for Electrical Supplies
Project stage: Request
ML13310B0921983-11-30030 November 1983
Forwards Application to Amend License DPR-13,consisting of Proposed Change 126 to Tech Specs,Specifying Limiting Conditions for Operation & Surveillance Requirements for Electrical Supplies for Each Mode of Operation
Project stage: Request
ML13310B0971983-11-30030 November 1983
Existing & Proposed Tech Specs 3.7, Auxiliary Electrical Supply, & 4.4, Emergency Power Sys Periodic Testing
Project stage: Other
ML13316A5731983-12-22022 December 1983
Advises That Proposed Change 126 to Tech Specs to Delete Existing Auxiliary Feedwater Pump Requirements in Section 4.4.E Does Not Provide Adequate Justification for Deletion of Provisions of Spec
Project stage: Other
ML13310B1341983-12-30030 December 1983
Submits Addl Info to Support Util 831130 Proposed Change 126 to Delete Tech Spec 4.4.E Re Operability of Auxiliary Feedwater Sys.Surveillance Requirements in Tech Spec 4.4.E Superseded by Tech Spec 4.1.9 Issued in Amend 65
Project stage: Request
ML13310B1421984-01-13013 January 1984
Requests No Addl Consideration Be Given to Removal of Tech Spec 4.5.E as Part of Proposed Change 126 Submitted on 831130.Removal of Surveillance Requirement for Auxiliary Feedwater Sys Will Be Handled in Future Proposed Change
Project stage: Request
ML13310B2891984-03-0909 March 1984
Forwards Request for Addl Info Re Proposed Changes 76 & 126 to Tech Specs.Info Requested within 30 Days of Ltr Date
Project stage: RAI
ML13310B3241984-04-12012 April 1984
Addl Info Re Proposed Changes 76 & 126 to License DPR-13. Response to NRC 840309 Request for Info Will Be Submitted in 45 Days,Following Replacement of Dc Battery Bank 1 Due to End of Svc Life
Project stage: Request
ML13310B6031984-07-27027 July 1984
Forwards Addl Info Re Proposed Changes 76 & 126 to Tech Specs,In Response to NRC 840309 Request.Calculation Sheets Encl.W/Three Oversize Drawings.Aperture Cards Available in PDR
Project stage: Request
ML13330A4461984-10-15015 October 1984
Application to Amend License DPR-13,revising Proposed Change 126,to Maintain Battery Charger Output Current Consistent W/Existing Tech Specs & to Omit Operability Contingency That Battery Parameters Must Be within Allowable Values
Project stage: Request
ML13316A7431984-11-14014 November 1984
Amend 84 to License DPR-13,approving Changes to Tech Specs & Bases to Incorporate Mods to Operability & Surveillance Requirements for Auxiliary Electric Supplies
Project stage: Other
ML13316A7461984-11-14014 November 1984
Safety Evaluation Supporting Amend 84 to License DPR-13
Project stage: Approval
ML13316A7401984-11-14014 November 1984
Forwards Amend 84 to License DPR-13 & Safety Evaluation. Amend Approves Tech Spec Changes & Bases Incorporating Mods to Operability & Surveillance Requirements for Auxiliary Electric Supplies
Project stage: Approval
1984-01-13
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Text
Southern California Edison Company P. 0.
BOX BOO 2244 WALNUT GROVE AVENUE ROSEMEAD. CALIFORNIA 91770 M.O. MEDFORD TELEPHONE MANAGER, NUCLEAR LICENSING July 2, 1984 (213) 572-1749 Director, Office of Nuclear Reactor Regulation Attention:.D. M. Crutchfield, Chief Operating Reactors Branch No. 5 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C.
20555 Gentlemen:
Subject:
Docket No. 50-206 Proposed Change Nos. 76 and 126 to the Technical Specifications San Onofre Nuclear Generating Station Unit 1 By letter dated March 9, 1984 you requested additional information regarding Proposed Change Nos. 76 and 126. This information is included as to this letter. Since modifications to the proposed change were necessary as a result of your request for additional information, Enclosure 2 contains portions of the proposed change which incorporate these modifications. Also, an additional modification, discussed below, has been included in the revised proposed change.
Due to the approach of end-of-service life of DC Battery Bank No. 1, appropriate actions for replacement of this battery are underway.
The schedule for installation is prior to startup. For this reason, Proposed Change No. 126 has been reviewed to determine if the proposed specifications reflect the parameters of the replacement No. 1 battery., The new battery will be considerably larger than the existing one, and it will be lead-calcium rather than lead-antimony. Due to the increased size, the charging current for the new battery will be increased to approximately 750 amperes.
Therefore, Proposed Specification 4.4.D.2.c(4) has been revised to require the battery charger for 125 volt DC Bus No. 1 to supply at least 800 amps DC (as opposed to 500 amps DC) at 130 volts DC for at least 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
The other parameters of the Technical Specifications are compatible with the characteristics of the replacement battery.
If you have any questions or desire additional information, please let me know.
Very truly yours, PDRADoCKZ z
N Ri V
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PDR
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Enclosures cc:
M.. G. Zwetzig, NRC Region V Office
