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MONTHYEARML20213F3001987-05-0707 May 1987 Proposed Tech Spec Table 3.3-5,changing ESF Response Times for Transferring Charging Pump Suction from Vol Control Tank to Refueling Water Storage Tank Project stage: Other ML20213F2921987-05-0707 May 1987 Application for Amend to License NPF-42,revising Tech Spec Table 3.3-5 to Change ESF Response Times to Reflect Time Required to Transfer Charging Pump Suction from Rod Control Tank to Refueling Water Storage Tank.Fee Paid Project stage: Request 1987-05-07
[Table View] |
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Category:OPERATING LICENSES-APPLIATION TO AMEND-RENEW EXISTING
MONTHYEARML20212F8831999-09-21021 September 1999 Application for Amend to License NPF-42,proposing to Modify Effective Full Implementation Date for Amend 120 from 991231 to 000630 ML20209D3561999-07-0808 July 1999 Application for Amend to License NPF-42 to Revise Allowable Value for CTS Table 3.3-4,functional Unit 8.a.,4 Kv Undervoltage - Loss of Voltage & Functional Unit 8.b.,4 Kv Undervoltage - Grid Degraded Voltage.Se & Nshc,Encl ML20209C2001999-06-30030 June 1999 Application for Amend to License NPF-42 for Temporary Change to CTS Without Action to Reduce Power ML20195G0211999-06-11011 June 1999 Application for Amend to License NPF-42,revising TS 3.7.1.6 & Associated Bases.Proposed Change Would Modify LCO to Require Four ARVs to Be Operable;Eliminate Use of Required in Action Statements;Add New Action for Three or More ARVs ML20195F7801999-06-10010 June 1999 Application for Amend to License NPF-42,proposing to Revise Z,S & Allowable Value Terms for Current TS Table 3.3-4, Functional Unit 7.b,automatic Switchover to Containment Sump (RWST Level - Low-Low) ML20207L0401999-03-0505 March 1999 Suppl 1 to 970515 Application for Amend to License NPF-42 Incorporating Changes to WCGS TSs & Adding License Conditions to Address Surveillance Requirements.Suppl Submits Mods Submitted to NRC During Review Process ML20199G7211999-01-15015 January 1999 Application for Request of Partial Issuance of Amend to License NPF-42,proposing TS SR Be Revised to Delete During SD Requirement & Reflect Appropriate Plant Conditions in Associated 3/4.7.3 Bases ML20199F4411999-01-12012 January 1999 Application for Amend to License NPF-42,to Revise TS 3/4.7.5 by Adding New Action Statement Requiring Verification of Operability of Two RHR Trains,Or Initiation of Power Reduction with Only One RHR Train Operable ML20198P1161998-12-29029 December 1998 Application for Amend to License NPF-42,revising Tech Specs to Incorporate Revised RCS Heatup & Cooldown Limit Curves & Revised Cold Overpressure Mitigation Sys (COMS) PORV Setpoint Limit Curve ML20195E5421998-11-10010 November 1998 Suppl Application for Amend to License NPF-42,transferring Control of Kg&E & Kansas Power & Light Possessory Ownership Interests to Westar Energy,Inc ML20155C4481998-10-26026 October 1998 Application for Amend to License NPF-42,transferring Kansas Gas & Electric Co & Kansas City Power & Light Co Interest in Operating Subject License for WCGS & Reflecting Transfer of Ownership ML20154S5651998-10-23023 October 1998 Application for Amend to License NPF-42,revising TS 3.5.1 by Increasing AOT in Action B. to 24 Hours in Lieu of Current AOT of One Hour ML20236R4711998-07-17017 July 1998 Application for Emergency Amend to License NPF-42 Revising TS 3/4.7.5, UHS, by Adding New Action Statement ML20247F8551998-05-0808 May 1998 Application for Amend to License NPF-42,revising TS 3/4.3.2, Table 3.3-3,ESF Actuation Sys Instrumentation ML20216J8151998-03-20020 March 1998 Application for Amend to License NPF-42,increasing Spent Fuel Storage Capacity & Max Nominal Fuel Enrichment to 5.0 W/O (Nominal Weight Percent) U-235.Proprietary & non-proprietary Holtec Repts,Encl.Proprietary Encl Withheld ML20202D1171998-02-0404 February 1998 Application for Amend to License NPF-42,revising TS 3/4.2.4, Quadrant Power Tilt Ratio & Associated Bases, to Clarify Required Actions for Limiting LCO & Other Change Consistents W/Ts Conversion Application Previously Submitted ML20202C4501998-02-0404 February 1998 Application for Amend to License NPF-42,revising Tech Specs 3/4.3, Changes to ESFAS Functional Units 6.f,8.a & 8.b ML20199H3431998-01-28028 January 1998 Application for Amend to License NPF-42,revising TS 6.3 & 6.12 to Reflect Position Change within Organization ML20198Q4321997-11-0606 November 1997 Application for Amend to License NPF-42,revising TS Sections 3/4.8.1,3/4.8.2 & 3/4.8.3 Re Installation of Spare Battery Chargers ML20217K2121997-10-17017 October 1997 Application for Amend to License NPF-42,revising TS Surveillance Requirements 4.5.2b & Associated Bases Re Requirement to Vent ECCS Pump Casings ML20216F7121997-09-0606 September 1997 Application for Amend to License NPF-42,alleviating Need for Enforcement Discretion Granted by NRC on 970905 ML20216D1471997-09-0202 September 1997 Application for Amend to License NPF-42,adding Requirements for Essential Svc Water Flowpaths to Turbine-Driven Auxiliary Feedwater Pump ML20196J3991997-07-29029 July 1997 Application for Amend to License NPF-42,revising Wording of Action Statement 5a to TS Table 3.3-1, Reactor Trip Sys Instrumentation ML20141G7641997-07-0303 July 1997 Application for Amend to License NPF-42,incorporating Addl Info Into TS 6.9.1.9, Colr ML20141F4361997-05-15015 May 1997 Application for Amend to License NPF-42,requesting Approval of Full Conversion of TS from Current to Set Based Upon Improved Std Ts,Per NUREG-1431 ML20138B9011997-04-23023 April 1997 Application for Amend to License NPF-42,revising TS 3/4.9.4, Containment Bldg Penetrations & Associated Bases Section to Allow Selected Containment Isolation Valves to Be Opened Under Administrative Controls During Core Alterations ML20137X3211997-04-15015 April 1997 Suppl to Application for Amend to License NPF-42,requesting TS 6.8.5.b, Reactor Coolant Pump Flywheel Insp Program ML20147F8121997-03-21021 March 1997 Application for Amend to License NPF-42,revising Tech Specs 6.8.5b Re Reactor Coolant Pump Flywheel Insp Program to Provide Exception to Exam Requirements in Reg Guide 1.14,Rev 1, Reactor Coolant Pump Flywheel Integrity ML20137B9311997-03-18018 March 1997 Application for Amend to License NPF-42,revising TS Section 5.3.1,fuel Assemblies to Allow Use of Alternate Zr Based Fuel Cladding Matl ZIRLO ML20137B8971997-03-18018 March 1997 Application for Amend to License NPF-42,revising TS SR 4.5.2.c to Clarify When Containment Entry Visual Insp Is Required ML20134Q0701997-02-17017 February 1997 Application for Amend to License NPF-42,revising TS 1.7, Containment Integrity, TS 3/4.6.1, Containment Integrity & TS 3/4.6.3, Containment Isolation Valves ML20132G9821996-12-20020 December 1996 Application for Amend to License NPF-42,requesting Rev to Bases for TS 3.8.1.1 Re Electrical Power Systems - AC Sources ML20135D8411996-12-0303 December 1996 Application for Amend to License NPF-42,requesting Rev to TS 6.8.5b Re Reactor Coolant Pump Insp Program ML20135D9781996-12-0303 December 1996 Application for Amend to License NPF-42,changing TS Table 3.3-3 to Correct Ref to Applicable Action Statement for Item 7.b,RWST Level - Low-Low Coincident W/Safety Injection ML20112A5471996-05-16016 May 1996 Application for Amend to License NPF-42,revising Tech Spec Surveillance Requirements 4.7.6.e.4 to Reflect Proposed Design Change to Output Rating of Charcoal Filter Adsorber Unit Heater in Pressurization Sys Portion CREVS ML20108C8191996-05-0101 May 1996 Application for Amend to License NPF-42,revising TS Section 6.0 to Reflect Position Title Changes within WCNOC Organization ML20101B0201996-03-0808 March 1996 Application for Amend to License NFP-42,revising TS Figure 2.1-1, Reactor Core Safety Limit - Four Loops in Operation, Table 2.2-1, RTS Instrumentation Setpoints, & Table 3.2-1, DNB Parameters ML20097D3281996-02-0808 February 1996 Application for Amend to License NPF-42,revising TS 3/4.6.1.1, Containment Integrity, TS 6.8.4i, Containment Air Locks & Adding TS 6.8.4i, Containment Leakage Rate Testing Program ML20097D3081996-02-0808 February 1996 Application for Amend to License NPF-42,revising TS 3.9.4 Re Containment Bldg Penetrations ML20099L7061995-12-20020 December 1995 Application for Amend to License NPF-42,revising TSs 3/4.6.1.1 & 3/4.6.1.3 to Incorporate Option B of 10CFR50,App J ML20095F8711995-12-13013 December 1995 Application for Amend to License NPF-42,revising TS Surveillance Requirement 4.1.3.1.3 to Delete Requirement for Performing Control Rod Drop Surveillance Test W/Tavg Greater than 551 F.Proprietary SE Encl.Se Withheld ML20095F0071995-12-13013 December 1995 Application for Amend to License NPF-42,revising Minimum & Maximum Flow Requirements for Centrifugal Charging & SI Pumps Specified in TS SR 4.5.2.h ML20095F9371995-12-13013 December 1995 Application for Amend to License NPF-42,revising TSs 3/4.8.2.1,3/4.8.2.2,3/4.8.3.1 & 3/4.8.3.2 Re Electrical Power Sys Dc Sources & Onsite Power Distribution ML20094P0591995-11-22022 November 1995 Application for Amend to License NPF-42,revising TS 3/4.3.1 to Reflect Deletion of Boron Dilution Mitigation Sys ML20094P0691995-11-22022 November 1995 Application for Amend to License NPF-42,revising TS 3.9.4 & Bases Section to Allow Containment Personnel Airlock Doors to Be Open During Core Alterations & Movement of Irradiated Fuel in Containment & TS 4.9.4 ML20094B3661995-10-24024 October 1995 Application for Amend to License NPF-42,revising TS SR 4.7.6.c,d & E to Reflect Proposed Design Change to Output Rating of Charcoal Filter Adsorber Unit Heater in Pressurization Sys of CR Emergency Ventilation Sys ML20093K6491995-10-18018 October 1995 Application for Amend to License NPF-42,replacing Current Fuel Oil Vol Requirement in EDG Day Tank in TS 3.8.1.1.b.1 & 3.8.1.2.b.1 W/ Fuel Oil Level Requirement ML20092J4071995-09-15015 September 1995 Application for Amend to License NPF-42,revising TS 3/4.8.1, Electrical Power Sys - AC Sources & Associated Bases, Proposing That Guidance of RG 1.9,Rev 3,GL 93-05 & 94-01 Be Adopted ML20092F5831995-09-14014 September 1995 Application for Amend to License NPF-42,revising TS 3/4.5.5, ECCS - RWST to Increase AOT of RWST for Adjustment of Boron Concentration from One H to Eight H ML20091K7851995-08-22022 August 1995 Application for Amend to License NPF-42,revising TS to Relocate Instrumentation Response Time Limits 1999-09-21
[Table view] Category:TEXT-LICENSE APPLICATIONS & PERMITS
MONTHYEARML20212F8831999-09-21021 September 1999 Application for Amend to License NPF-42,proposing to Modify Effective Full Implementation Date for Amend 120 from 991231 to 000630 ML20209D3561999-07-0808 July 1999 Application for Amend to License NPF-42 to Revise Allowable Value for CTS Table 3.3-4,functional Unit 8.a.,4 Kv Undervoltage - Loss of Voltage & Functional Unit 8.b.,4 Kv Undervoltage - Grid Degraded Voltage.Se & Nshc,Encl ML20209C2001999-06-30030 June 1999 Application for Amend to License NPF-42 for Temporary Change to CTS Without Action to Reduce Power ML20195G0211999-06-11011 June 1999 Application for Amend to License NPF-42,revising TS 3.7.1.6 & Associated Bases.Proposed Change Would Modify LCO to Require Four ARVs to Be Operable;Eliminate Use of Required in Action Statements;Add New Action for Three or More ARVs ML20195F7801999-06-10010 June 1999 Application for Amend to License NPF-42,proposing to Revise Z,S & Allowable Value Terms for Current TS Table 3.3-4, Functional Unit 7.b,automatic Switchover to Containment Sump (RWST Level - Low-Low) ML20207L0401999-03-0505 March 1999 Suppl 1 to 970515 Application for Amend to License NPF-42 Incorporating Changes to WCGS TSs & Adding License Conditions to Address Surveillance Requirements.Suppl Submits Mods Submitted to NRC During Review Process ML20199G7211999-01-15015 January 1999 Application for Request of Partial Issuance of Amend to License NPF-42,proposing TS SR Be Revised to Delete During SD Requirement & Reflect Appropriate Plant Conditions in Associated 3/4.7.3 Bases ML20199F4411999-01-12012 January 1999 Application for Amend to License NPF-42,to Revise TS 3/4.7.5 by Adding New Action Statement Requiring Verification of Operability of Two RHR Trains,Or Initiation of Power Reduction with Only One RHR Train Operable ML20198P1161998-12-29029 December 1998 Application for Amend to License NPF-42,revising Tech Specs to Incorporate Revised RCS Heatup & Cooldown Limit Curves & Revised Cold Overpressure Mitigation Sys (COMS) PORV Setpoint Limit Curve ML20195E5421998-11-10010 November 1998 Suppl Application for Amend to License NPF-42,transferring Control of Kg&E & Kansas Power & Light Possessory Ownership Interests to Westar Energy,Inc ML20155C4481998-10-26026 October 1998 Application for Amend to License NPF-42,transferring Kansas Gas & Electric Co & Kansas City Power & Light Co Interest in Operating Subject License for WCGS & Reflecting Transfer of Ownership ML20154S5651998-10-23023 October 1998 Application for Amend to License NPF-42,revising TS 3.5.1 by Increasing AOT in Action B. to 24 Hours in Lieu of Current AOT of One Hour ML20236R4711998-07-17017 July 1998 Application for Emergency Amend to License NPF-42 Revising TS 3/4.7.5, UHS, by Adding New Action Statement ML20247F8551998-05-0808 May 1998 Application for Amend to License NPF-42,revising TS 3/4.3.2, Table 3.3-3,ESF Actuation Sys Instrumentation ML20216J8151998-03-20020 March 1998 Application for Amend to License NPF-42,increasing Spent Fuel Storage Capacity & Max Nominal Fuel Enrichment to 5.0 W/O (Nominal Weight Percent) U-235.Proprietary & non-proprietary Holtec Repts,Encl.Proprietary Encl Withheld ML20202D1171998-02-0404 February 1998 Application for Amend to License NPF-42,revising TS 3/4.2.4, Quadrant Power Tilt Ratio & Associated Bases, to Clarify Required Actions for Limiting LCO & Other Change Consistents W/Ts Conversion Application Previously Submitted ML20202C4501998-02-0404 February 1998 Application for Amend to License NPF-42,revising Tech Specs 3/4.3, Changes to ESFAS Functional Units 6.f,8.a & 8.b ML20199H3431998-01-28028 January 1998 Application for Amend to License NPF-42,revising TS 6.3 & 6.12 to Reflect Position Change within Organization ML20198Q4321997-11-0606 November 1997 Application for Amend to License NPF-42,revising TS Sections 3/4.8.1,3/4.8.2 & 3/4.8.3 Re Installation of Spare Battery Chargers ML20217K2121997-10-17017 October 1997 Application for Amend to License NPF-42,revising TS Surveillance Requirements 4.5.2b & Associated Bases Re Requirement to Vent ECCS Pump Casings ML20216F7121997-09-0606 September 1997 Application for Amend to License NPF-42,alleviating Need for Enforcement Discretion Granted by NRC on 970905 ML20216D1471997-09-0202 September 1997 Application for Amend to License NPF-42,adding Requirements for Essential Svc Water Flowpaths to Turbine-Driven Auxiliary Feedwater Pump ML20196J3991997-07-29029 July 1997 Application for Amend to License NPF-42,revising Wording of Action Statement 5a to TS Table 3.3-1, Reactor Trip Sys Instrumentation ML20141G7641997-07-0303 July 1997 Application for Amend to License NPF-42,incorporating Addl Info Into TS 6.9.1.9, Colr ML20141F4361997-05-15015 May 1997 Application for Amend to License NPF-42,requesting Approval of Full Conversion of TS from Current to Set Based Upon Improved Std Ts,Per NUREG-1431 ML20138B9011997-04-23023 April 1997 Application for Amend to License NPF-42,revising TS 3/4.9.4, Containment Bldg Penetrations & Associated Bases Section to Allow Selected Containment Isolation Valves to Be Opened Under Administrative Controls During Core Alterations ML20137X3211997-04-15015 April 1997 Suppl to Application for Amend to License NPF-42,requesting TS 6.8.5.b, Reactor Coolant Pump Flywheel Insp Program ML20147F8121997-03-21021 March 1997 Application for Amend to License NPF-42,revising Tech Specs 6.8.5b Re Reactor Coolant Pump Flywheel Insp Program to Provide Exception to Exam Requirements in Reg Guide 1.14,Rev 1, Reactor Coolant Pump Flywheel Integrity ML20137B9311997-03-18018 March 1997 Application for Amend to License NPF-42,revising TS Section 5.3.1,fuel Assemblies to Allow Use of Alternate Zr Based Fuel Cladding Matl ZIRLO ML20137B8971997-03-18018 March 1997 Application for Amend to License NPF-42,revising TS SR 4.5.2.c to Clarify When Containment Entry Visual Insp Is Required ML20134Q0701997-02-17017 February 1997 Application for Amend to License NPF-42,revising TS 1.7, Containment Integrity, TS 3/4.6.1, Containment Integrity & TS 3/4.6.3, Containment Isolation Valves ML20132G9821996-12-20020 December 1996 Application for Amend to License NPF-42,requesting Rev to Bases for TS 3.8.1.1 Re Electrical Power Systems - AC Sources ML20135D8411996-12-0303 December 1996 Application for Amend to License NPF-42,requesting Rev to TS 6.8.5b Re Reactor Coolant Pump Insp Program ML20135D9781996-12-0303 December 1996 Application for Amend to License NPF-42,changing TS Table 3.3-3 to Correct Ref to Applicable Action Statement for Item 7.b,RWST Level - Low-Low Coincident W/Safety Injection ML20112A5471996-05-16016 May 1996 Application for Amend to License NPF-42,revising Tech Spec Surveillance Requirements 4.7.6.e.4 to Reflect Proposed Design Change to Output Rating of Charcoal Filter Adsorber Unit Heater in Pressurization Sys Portion CREVS ML20108C8191996-05-0101 May 1996 Application for Amend to License NPF-42,revising TS Section 6.0 to Reflect Position Title Changes within WCNOC Organization ML20101B0201996-03-0808 March 1996 Application for Amend to License NFP-42,revising TS Figure 2.1-1, Reactor Core Safety Limit - Four Loops in Operation, Table 2.2-1, RTS Instrumentation Setpoints, & Table 3.2-1, DNB Parameters ML20097D3281996-02-0808 February 1996 Application for Amend to License NPF-42,revising TS 3/4.6.1.1, Containment Integrity, TS 6.8.4i, Containment Air Locks & Adding TS 6.8.4i, Containment Leakage Rate Testing Program ML20097D3081996-02-0808 February 1996 Application for Amend to License NPF-42,revising TS 3.9.4 Re Containment Bldg Penetrations ML20099L7061995-12-20020 December 1995 Application for Amend to License NPF-42,revising TSs 3/4.6.1.1 & 3/4.6.1.3 to Incorporate Option B of 10CFR50,App J ML20095F0071995-12-13013 December 1995 Application for Amend to License NPF-42,revising Minimum & Maximum Flow Requirements for Centrifugal Charging & SI Pumps Specified in TS SR 4.5.2.h ML20095F9371995-12-13013 December 1995 Application for Amend to License NPF-42,revising TSs 3/4.8.2.1,3/4.8.2.2,3/4.8.3.1 & 3/4.8.3.2 Re Electrical Power Sys Dc Sources & Onsite Power Distribution ML20095F8711995-12-13013 December 1995 Application for Amend to License NPF-42,revising TS Surveillance Requirement 4.1.3.1.3 to Delete Requirement for Performing Control Rod Drop Surveillance Test W/Tavg Greater than 551 F.Proprietary SE Encl.Se Withheld ML20094P0591995-11-22022 November 1995 Application for Amend to License NPF-42,revising TS 3/4.3.1 to Reflect Deletion of Boron Dilution Mitigation Sys ML20094P0691995-11-22022 November 1995 Application for Amend to License NPF-42,revising TS 3.9.4 & Bases Section to Allow Containment Personnel Airlock Doors to Be Open During Core Alterations & Movement of Irradiated Fuel in Containment & TS 4.9.4 ML20094B3661995-10-24024 October 1995 Application for Amend to License NPF-42,revising TS SR 4.7.6.c,d & E to Reflect Proposed Design Change to Output Rating of Charcoal Filter Adsorber Unit Heater in Pressurization Sys of CR Emergency Ventilation Sys ML20093K6491995-10-18018 October 1995 Application for Amend to License NPF-42,replacing Current Fuel Oil Vol Requirement in EDG Day Tank in TS 3.8.1.1.b.1 & 3.8.1.2.b.1 W/ Fuel Oil Level Requirement ML20092J4071995-09-15015 September 1995 Application for Amend to License NPF-42,revising TS 3/4.8.1, Electrical Power Sys - AC Sources & Associated Bases, Proposing That Guidance of RG 1.9,Rev 3,GL 93-05 & 94-01 Be Adopted ML20092F5831995-09-14014 September 1995 Application for Amend to License NPF-42,revising TS 3/4.5.5, ECCS - RWST to Increase AOT of RWST for Adjustment of Boron Concentration from One H to Eight H ML20091K7851995-08-22022 August 1995 Application for Amend to License NPF-42,revising TS to Relocate Instrumentation Response Time Limits 1999-09-21
[Table view] |
Text
_-___ __ ___ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . _ _ _ _ _ _ _ _
~
WOLF CREEK NUCLEAR OPERATING CORPORATION May 7, 1987 U.S. Nuclear Regulatory Commission i
ATTN: Document Control Desk Washington, D.C. 20555 Letter: ET 87-0180 Re: Docket No. 50-482 Subj: Revision to Technical Specification Table 3.3 Engineered Safety Features Response Times Gentlemen:
The purpose of this letter is to transmit an application for amendment to Facility Operating License No. NPF-42 for Wolf Creek Generating Station, Unit No. 1. This license amendment request proposes revising Technical Specification Table 3.3-5 to change the Engineered Safety Feature (ESP) response times for items 2.a. (Containment Pressure-High-1, Safety Injection), 3.a. (Pressurizer Pressure-Low, Safety Injection), and 4.a.
(Steamline Pressure-Low, Safety Injection).
This application for amendment revises Technical Specification Table 3.3-5, ESF Response Times, to more accurately reflect the time required to transfer charging pump suction from the Volume Control Tank to the Refueling Water Storage Tank following a postulated steam line break event. A complete Safety Evaluation and Significant Hazards Consideration are provided as Attachments I and II respectively. The proposed changes to Technical Specification Table 3.3-5 and its associated Bases are provided in Attachment III.
In accordance with 10 CFR 50.91, a copy of this application for amendment, with attachments is being provided to the designated Kansas state official.
Enclosed is a check (No. 000124) for the $150.00 application fee required by 10 CFR 170.21.
370510028a 370D07 Oy gQ PDH P
ADOCK 0500048.
I t
\p PO. Bcx 411/ Burbngton, KS 66839 < Phone- (316) 364 8831 An Eau # Oppc<tumty Emgeyor M F HCVET
ET 87-0180 Page 2 May 7, 1987 The proposed revision to the Wolf Creek Generating Station Technical Specifications will be fully implemented within 30 days of formal Nuclear Regulatory Commission approval. If you have any questions concerning this matter, please contact me or Mr. O. L. Maynard of my staff.
Very truly yours,
' 47 V(L/ )
l John A. Bailey i Vice-President Engineering and Technical Services JAB:Jad Enclosure Attachments: I - Safety Evaluation II - Significant Hazards Consideration III - Proposed Technical Specification Changes cc: P0'Connor (2)
RMartin JCummins GAllen
STATE OF KANSAS )
) SS COUNTY OF COFFEY )
John A. Bailey, of lawful age, being first duly sworn upon oath says that he is Vice-President Engineering and Technical Services of Wolf Creek Nuclear Operating Corporation; that he has read the foregoing document and knows the content thereof; that he has executed that same for and on behalf of said Corporation with full power and authority to do so; and that the facts therein stated are true and correct to the best of his knowledge, information and belief.
, o John A. Bailey a
/
JA Vice-President Engineering and i Technical Services SUBSCRIBED and sworn to before me this 7 day of M Q , 1987.
/ . ..$.4'4* % f m
/'[ ' .h ,
. Notary Public
!% W U
II Expiration Date M Y /990
~?fj,....;...[
ATTACHMENT I SAFETY EVALUATION
Attschment I'to ET 87-0180 Page 1 of 3
-Hay 7, 1987 SAFETY EVALUATION This ~ amendment request revises Wolf Creek Generating Station (WCGS), Unit No.1, Technical Specification Table 3.3-5, Engineered Safety Features (ESF)
Response Times for items 2.a . (Containment Pressure-High-1, Safety Injection), 3.a . (Pressurizer Pressure-Low, Safety Injection), and 4.a.
(Steam Line Pressure-Low, Safety Injection). -These changes are being made to more accurately reflect the time required to change charging pump suction from the Volume Control Tank (VCT) to the Refueling Water Storage Tank
( RWST) .
BACKGROUND b In the normal configuration of the Chemical and Volume Control System (CVCS), the charging pumps take suction from the Volume Control Tank. When a Safety Injection ("S") signal is generated from the protection logic, a sigtal is sent to start the high-head ch3rging pumps and to begin opening the Refueling Water Storage. Tank isolation valves, in order to align the _
borated water source for delivery to the Reactor Coolant System (RCS). Once the RWST isolation valves have repositioned and are indicated fully opened,
{
[
the isolation valves on the VCT will begin to close. This sequential valve 1
~
stroke time can be as long as 25 seconds. Since the VCT is pressurized, -it will be the. source of the Safety Injection (SI) flow .until the isolation valves are closed. This affects the time assumed at which the 2000 ppm borated water in the RWST is available to the suction of the charging pumps.
The Updated Safety Analysis Report (USAR) steam line break analysis which supports the current Technical Specifications (Table 3.3-5) assumes the-following delays for delivery of borated water to the RCS:
- 1. "S" signal generation (2 seconds)
- 2. Diesel start-including time to come up to speed (12 seconds)
- 3. Valve stroke times and pumps to full speed (10 seconds)
However, this assumes that the VCT and RWST isolation valves stroke simultaneously rather than sequentially. The valve interlock logic increases the delay time for the availability of borated water by 15 seconds (conservatively) to 27 seconds with offsite power and 39 seconds without offsite-power. The only transient impacted by the increased time delay is the steam line break event. No other Chapter 15 transient relies on short-term boration from the RWST to mitigate the event.
EVALUATION Based on the current steam line break analysis for the Wolf Creek Generating Station (WCGS) and sensitivities performed for other plants, the additional time celay is acceptable. Specifically:
- 1) The additional delay in the availability of borated water occurs early in the steam line break transient when RCS pressures are relatively high and SI flowrates are relatively small due to head vs SI flow characteristics.
1
- I Att chment I to ET'87-0180 Pags 2 of 3 May 7, 1987
- 2) Previous sensitivities 'have shown that' delays cf this magnitude result in small changes in the analysis results. A comparison of cases with and without the additional Safety Injection Signal (SIS) delay showed, over the limiting portion of the transient, maximum differences of 0.25 in_ power, 0.6 deg-F in RCS temperature, and 10 psia in RCS pressure. A WCGS specific review of the steam line break analys's demonstrated that there is sufficient margin available in the analysis such that the conclusions presented in the USAR remain valid.
- 3) The analysis assumes only one high-head charging pump is available. However, at the pressures characteristic of a steam line break, all of the SI pumps of a given train would be available to deliver a significantly greater flowrate of borated water to the RCS.
From analyses performed for other plants, it has been shown that SI boron concentration reduction has little effect on the steam line break mass / energy release analysis inside containment. Since the additional time delay is a small perturbation compared to a large change in the available boron concentration, there will be a negligable impact on the steam line break mass / energy release inside containment analysis.
Sensitivities performed for the steam line break superheated mass / energy release outside containment analysis show that the results are not sensitive to large changes in SI flow (Reference WCAP-10961, Rev. 1). The additional time delay is a small perturbation compared to a large change in total SI flow; therefore, it is concluded that the impact on the Wolf Creek superheated mass / energy releases outside containment is insignificant.
In the case of a Loss of Coolant Accident, the immediate safety function of SI is to supply water to the RCS, whether borated or not. The time at which water (from either the VCT or the RWST) is available to the suction of the high-head charging pumps is not affected. Thus, _for those SI actuation signals that are only intended protection against a LOCA, this additional delay is not required since boron is only required for maintaining suberiticality in the long term following a LOCA.
i Conclusion The proposed change in the ESF response times for Containment Pressure -
High-1, Pressurizer Pressure-Low and Steam Line Pressure-Low in Technical Specification Table 3.3-5 Items 2a, 3a and 4a to incorporate an increase of 15 seconds is acceptable. Evaluation of the impact on the WCGS safety analysis licensing basis demonstrates that the conclusions in the USAR remain valid.
- I Att chment I to ET 87-0180 Page 3 of 3 May 7,1987 Dased on the above discussions and the considerations presented in Attachment II, the proposed revisions to Technical specification Table 3.3-5 and its associated Bases do not increase the probability of occurence or the consequences of an accident or malfunction of equipment important to safety previously evaluated in the safety analysis report; or create a possibility for an accident or malfunction of a different type than any evaluated previously in the safety analysis report; or reduce the margin of safety as defined in the basis for any technical specification. Therefore, the proposed revisions do not adversely affect or endanger the health or safety of the general public or involve a significant safety hazard.
ATTACHMENT II SIGNIFICANT HAZARDS CONSIDERATION
Attachment II to ET 87-0180 Page 1 of 1 May 7,1987 SIGNIFICANT HAZARDS CONSIDERATION This license amendment request proposes revising Technical Specification Table 3.3-5 and its associated Bases to change the Engineered Sa fety Features (ESF) response times for items 2.a. (Containment Pressure-High-1, Safety Injection), 3.a. (Pressurizer Pressure-Low, Safety Injection), and 4.a. (Steam Line Pressure-Low, Safety Injection). These changes are being made to more accurately reflect the time required to transfer charging pump suction from the Volume Control Tank to the Refueling Water Storage Tank.
- 1. The proposed changes do not involve a significant increase in the probability or consequences of an accident previously evaluated.
Increasing the acceptance criterion for the ESF response times is acceptable since evaluation of the impact of the increased response times on the steam line break event demonstrated that the DNB design basis is still met. The conclusions in the Updated Safety Analysis Report (USAR) remain valid. These changes do net involve i a change in the operational limits or physical design of the involved systems.
- 2. The proposed changes do not create the possibility of a new or different kind of accident from any accident previously evaluated.
There are no new failure modes associated with the proposed change, as no design changes have been made. These changes do not involve a change in the operational limits or physical design of the involved systems. Existing plant equipment will be utilized as before the proposed change. Therefore, an increase in the ESF response times for Containment Pressure-High-1, Pressurizer Pressure-Low, and Steam Line Pressure-Low does not create the possibility of an accident or malfunction of a different type than any evaluated previously in the safety analysis report.
3 The proposed changes do not involve a significant reduction in a margin of safety. The proposed changes are intended to bring the technical specification surveillance requirements into agreement with the Bases for the technical specification. Since there is no impact on the conclusions presented in the USAR all existing safety limits are still valid.
Based on the above discussions and those presented in Attachment I, it has been determined that the requested Technical Specification revisions do not involve a significant increase in the probability or consequences of an accident or other adverse condition over previous evaluations; or create the possibility of a new or different kind of accident or condition over previous evaluations; or involve a significant reduction in a margin of safety. Therefore, the requested license amendment does not involve a significant hazards consideration.
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