Letter Sequence Other |
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Results
Other: ML20195H593, ML20196A791, ML20206C051, ML20213G384, ML20213G443, ML20214J058, ML20214J923, ML20214K398, ML20214K734, ML20214L962, ML20214M147, ML20216C555, ML20234C237, ML20235R591, ML20236H213, ML20238A152
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MONTHYEARML20214J9231986-08-0808 August 1986
Forwards Response to Item in Technical Evaluation Rept Re Testing Program,Per SER Open Item 9
Project stage: Other
ML20206C0511987-04-0606 April 1987
Forwards Revised FSAR Section 14.2.12.8.13, Pressurizer Heater Spray Capability Test (Ist), Scheduled to Be Included in FSAR Amend 17 (May 1987).Rev Describes Contents of IST-2.06.2 & Incorporates Previous Ref Commitment
Project stage: Other
ML20213G3841987-05-12012 May 1987
Advises That Exception on FSAR Table 1.8-1,Amend 5,revised in Amend 10 to Resolve NRC Question 640.10 Requesting List of air-operated Valves to Be Excluded from Loss of Instrument Air Test
Project stage: Other
ML20213G4431987-05-12012 May 1987
Submits Resolution of NRC Comments on Changes Made to FSAR Section 14.2, Initial Test Program, in Amend 13
Project stage: Other
ML20214M1471987-05-21021 May 1987
Informs That Util Will Amend FSAR Section 14.2.12.66.2, Containment Air Recirculation Sys Test, to State That Containment Air Temp Will Be Recorded at 5%,50% & 100% Reactor Power Levels Using Installed Sensor Sys
Project stage: Other
ML20214L9621987-05-21021 May 1987
Informs That SER Confirmatory Item 52C Re Plant Performance Following MSIV Closure Will Be Completed W/Reactor Producing 30% Rather than 100% Power Due to Possibility of High Power Level Leading to Unnecessary Sys Conditions
Project stage: Other
ML20214K7341987-05-21021 May 1987
Provides Clarification of Util 870512 Response to NRC 870311 Questions Re Changes to FSAR Section 14.2 on Initial Test Program.Table 1, Equivalent Tests, Encl
Project stage: Other
ML20214J0581987-05-25025 May 1987
Advises That Util Does Not Consider NRC Concern Re Cycling Open Safety Injection Accumulator Isolation Valves,Valid Per Reg Guide 1.79.Util Administrative Controls Require Valves to Be Open W/Power Removed from Control Circuit
Project stage: Other
ML20214J0301987-05-25025 May 1987
Submits Supplemental Info to Items 4 & 8 of Util 870521 Response to NRC Comments Re Changes Made in FSAR Section 14.2, Initial Test Program. Air Receiver Vol Test Not Required Since Instrument Air Sys Not safety-related
Project stage: Supplement
ML20214K3981987-05-26026 May 1987
Informs of Tests to Be Performed After Core Loading Prior to Criticality in Order to Resolve Preoperational Testing Issues
Project stage: Other
ML20216C5551987-06-23023 June 1987
Informs That Util Completed Test STP-2.11.01 Which Verified That Accumulator Isolation Valves Open Against Max Differential Pressure (SER Confirmatory Item 51A)
Project stage: Other
ML20235R5911987-07-14014 July 1987
Forwards Status Rept Identifying Changes to Initial Test Program as Described in FSAR Chapter 14,per 10CFR50.59
Project stage: Other
ML20238A1521987-08-17017 August 1987
Forwards Second Status Rept Identifying Changes to Initial Test Program Described in Chapter 14 of Fsar.Changes Made in Accordance W/Provisions of 10CFR50.59
Project stage: Other
ML20204J3111987-08-28028 August 1987
Discusses Request for NRC Approval of Revised Power Ascension Test Schedule,Per 870825,26 & 27 Discussions.Rev Required Temporary Deferral of IST 2.21.A.02, MSIV & IST 2.04.03, Turbine Trip W/Loss of Offsite..
Project stage: Request
ML20234C2371987-09-15015 September 1987
Forwards Third Status Rept Identifying Changes to Initial Test Program as Described in FSAR Chapter 14.Changes Made Per Provisions of 10CFR50.59(b)
Project stage: Other
ML20236H2131987-10-27027 October 1987
Forwards Fourth Status Rept,Identifying Changes to Initial Test Program Described in Fsar,Chapter 14,per 10CFR50.59(b)
Project stage: Other
ML20195H5931988-01-0707 January 1988
Forwards Sixth Status Rept Identifying Changes to Initial Test Program as Described in Chapter 14 of FSAR
Project stage: Other
ML20196A7911988-01-29029 January 1988
Fowards Seventh Status Rept Identifying Changes to Initial Test Program Described in Chapter 14 of Fsar.Changes Made in Accordance w/10CFR50.59 within 1 Month of Initiating Changes Per OL Condition C.(3)
Project stage: Other
1987-05-26
[Table View] |
Text
2244di.
'3hp2C Telephone (412) 393-6000 Nuclear Group
[p,8j,'o,,,p3,3o77.o00, May 25, 1987 n
2NRC-7-140 United States Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, DC 20555
SUBJECT:
Beaver Valley Power Station Unit No. 2 Docket No. 50-412 Accumulator Isolation Valves Test Gentlemen:
Recently, Duquesne Light Company (DLC) received verbal direction from the NBC Staff to cycle open SI Accumulator Isolation Valves under the maximum D/P conditions of zero RCS pressure and maximum expected accumulator precharge pressures per RG 1.79.
The purpose of cycling open these valves as identified in RG 1.79 is to ensure these valve (s) open whenever an SI signal is received to ensure that inadvertent valve closures do not prevent operation of the core flooding system.
DLC does not consider this concern valid for these valves due to the administrative controls that require the valves to be open with the power removed from the control circuit of the linestarters when the pressurizer pressure is above 1000 psig in accordance with Tech Spec 3.5.1 and concerns discussed in NUREG 0737.
Per NRC concerns of Hot Shorts, Open Circuits and Shorts to grounds, the control power to these valves has been altered such that the valves cannot actuate even with an SI signal without operator action.
DLC has not committed to perform this test and has stated its position in several correspondences prior to SSER-3.
SSER-3 accepted the Tech Spec required surveillance test as proof of operability.
Per 10CFR50.109, the NRC Staff has not shown how this test will substantially increase overall plant safety but relies strictly upon the guidance of RG 1.79 as basis for imposing this test.
DUQUESNE LIGHT COMPANY
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