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MONTHYEARML19260A0041979-10-11011 October 1979 Advises of NRC Requirements for Auxiliary Feedwater Sys. Generic & plant-specific Requirements Encl Project stage: Other ML19210D0331979-11-15015 November 1979 Forwards Response to Re NRC Requirements for Auxiliary Feedwater Sys.Refueling Shutdown Will Commence on 791201.Some Testing Recommendations Will Not Be Scheduled Until Startup Testing Performed Project stage: Other ML19256G1081979-12-18018 December 1979 Notifies That Requested Info Re Auxiliary Feedwater Sys Automatic Initiations & Flow Indications to Steam Generators Was Provided During 791213 Site Visit Project stage: Other ML19294B2131980-01-22022 January 1980 Forwards Request for Addl Info & Positions Re NRC Requirements for Auxiliary Feedwater Sys.Licensee Must Provide Info That Describes How Auxiliary Feedwater Automatic Initiation Sys Signals Meet Requirements Project stage: RAI ML19309A8821980-03-25025 March 1980 Forwards Response to NRC 800122 Request for Addl Info Re Requirements for Auxiliary Feedwater Sys.Complete Response Not Available Until Completion of Engineering Evaluation Project stage: Request ML19323A5031980-04-14014 April 1980 Forwards Revised Tables 1B-1,2-1 & 3-1 to Util 800325 Response Re Auxiliary Feedwater Sys Project stage: Other ML19323C5621980-05-14014 May 1980 Application for Amend 46 to Ol,Providing Proposed Tech Spec Changes.Revisions Include Addition of safety-related Hydraulic Snubbers to Table 3.7-4 & Mod of Surveillance Requirements for Auxiliary Feedwater Sys.Affidavit Encl Project stage: Request ML19338E8451980-09-30030 September 1980 Forwards Addl Info on Auxiliary Feedwater Sys,In Response to NRC 800122 Request Project stage: Other ML20037C8521981-02-0707 February 1981 Forwards Safety Evaluation of Licensee Implementations of NRC 791011 Recommendations for Auxiliary Feedwater Sys. Responses Satisfy NRC Requirements,W/Exception of Five Items Project stage: Approval ML19343C4351981-03-20020 March 1981 Application for Amend 59 to License DPR-66,changing App a Tech Specs to Ensure Redundancy of Auxiliary Feedwater Flow During Normal & Accident Conditions.Class III Fee Encl Project stage: Request ML19350C8251981-03-27027 March 1981 Informs That Auxiliary Feedwater Sys Can Provide Required Flow for Feedline Rupture & for Main Steam Line Break Inside Containment W/O Operator Intervention for 10 Minutes Project stage: Other ML20004B9001981-05-22022 May 1981 Forwards Rept, Auxiliary Feedwater Pumps Presently Installed at Beaver Valley Power Station,Unit 1 Project stage: Other ML20009F7371981-07-21021 July 1981 Responds to 810715 Telcon Requesting Util Position Re Primary Plant Demineralized Water Storage Tank Level Transmitters.Both Transmitters Are Seismically Qualified & Powered from Vital Bus 2.No Need to Modify Power Supply Project stage: Other ML20039D5731981-12-30030 December 1981 Provides Info Re NUREG-0737 Items Scheduled for Implementation on 820101.Mods Requiring Station Shutdown Will Be Completed During Second Refueling Outage Scheduled 821225 Project stage: Other 1980-05-14
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,h sm 458-e000 U5" July 21, 1981 Director of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Attn:
Mr. Steven A. Varga, Chief Operating Reactors Branch No. 1 Division of Licensing Washington, DC 20555
Reference:
Beavec Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 Telecom D. Chaney/K. Grada, July 15, 1981 Gentlemen:
This letter is in response to your request for our position and intentions in regard to the Primary Plant Demineralized Water Storage Tank (PPDWST)
Level Transmitters (LT-WT-104Al, A2).
Both transmitters are seismically qualified and powered from Vital Bus 2.
This pcwer supply is automatically sequenced on to the emergency diesel on loss of normal AC and backed up by the batteries should this supply iail.
The transmitters are located in a tornado protected enclosure along with the PPDWST.
Both transmitters provide remote level indication in the Control Room and redundant high and low level alarms.
In addition to these transmitters, a local tank level indication is available. All three indications are checked each shift and recorded in the station logs. A loss of power to either transmitter will result in a full downscale indicated reading and a low level alarm. The local "f] oat type" level indicator would provide indication should a power failure occur to both channels.
Since these level indicators perform no safety related control function and their failure would not inhibit initiation of any automatic safety related function, we do not intend to modify the power supply to these units.
If you have any questions in this matter, please contact my office.
Sincerely,
.M
. J. Care ice President, Nuclear cc: !!r D. A. Beckman, Resident Inspector 6 S. Nuclear Regulatory Commission Beaver Valley Power Station Shippingport, PA 15077 t!. 5 - Nuclear Regulatory Commission c/o Document Management Branch g
Washington, DC 20555 8107310478 910721 hf PDR ADUCK 05000334 J
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