|
---|
Category:TECHNICAL SPECIFICATIONS & TEST REPORTS
MONTHYEARML20211A9881999-08-18018 August 1999 Rev 5 to DPC Nuclear Security Training & Qualification Plan ML20204B4141999-03-27027 March 1999 Revised Oconee Nuclear Station Selected Licensee Commitments, List of Effective Pages ML20155C6391998-10-26026 October 1998 Proposed Tech Specs Tables 4.1-1 & 4.1-2,revised Surveillance Frequency of Refueling Outage to 18 Months ML20154L7191998-10-0505 October 1998 Rev 8 to DPC Nuclear Security & Contingency Plan, for Oconee,Mcguire & Catawba Nuclear Stations ML20154C1021998-09-30030 September 1998 Proposed Tech Specs Changing UFSAR by Increasing Max Rod Internal Pressure in Spent Fuel Pool from 1,200 to 1,300 Psig ML20236V9611998-07-27027 July 1998 Corrected TS Bases Pages 3.5-30b of 961211 & 3.16-2 of 970205,correcting Amend Numbers ML20236T5171998-07-20020 July 1998 Proposed Tech Specs Re one-time Extension to Functional Test Frequencies for Hydraulic & Mechanical Snubbers ML20236R1901998-07-16016 July 1998 Proposed Tech Specs Extending TS Surveillances TS 4.20.2(a), Table 4.20-1,items 1,2 & 4,TS 4.1-1,Table 4.1-1,items 8,9,10 & 11 & TS 4.5.1.2.1,item b(1) ML20217F2841998-04-20020 April 1998 Rev 7 to DPC Nuclear Security & Contingency Plan, for Oconee,Mcguire & Catawba Nuclear Stations ML20141F1521997-06-25025 June 1997 Rev 4 to Nuclear Security Training & Qualification Plan ML16141B0771996-11-18018 November 1996 Errata to TS 3.7,which Removes Criteria for Battery & Battery Charger Specific Svc Tests ML20134K5401996-10-31031 October 1996 Rev 6 to Chemistry Manual 5.1, Emergency Response Guidelines ML20117J0181996-08-15015 August 1996 Revised Chapter 16 of Oconee Selected Licensee Commitments Manual ML20095H1291995-12-0505 December 1995 Rev to ONS Selected Licensee Commitments (SLC) Manual, Revising SLC 16.6.1, Containment Leakage Tests to Reflect Current Plant Configuration & Update Testing Info ML20091P2461995-08-21021 August 1995 Rev to ONS Selected Licensee Commitments Manual ML16141A9291995-06-29029 June 1995 Proposed Tech Specs Re Mgt Positions Authorized to Approve Such Items as Procedures & Procedure Changes,Station Mods, TS Amends & Reportable Events ML16141A8581995-01-0909 January 1995 Revs to Oconee Selected Licensee Commitments Manual ML16141A8111994-04-20020 April 1994 Proposed Tech Spec Table 4.1-2, Min Equipment Test Frequency ML16141A7981994-04-12012 April 1994 Proposed Tech Specs Re Technical Review & Control Activities ML15261A4281994-02-24024 February 1994 Proposed TS 4.6, Emergency Power Periodic Testing ML15224A3521993-10-26026 October 1993 Safety Assurance Directive 6.1, Oconee Nuclear Site Safety Assurance Emergency Response Organization ML20044C9581993-05-0404 May 1993 Proposed TS 4.7.1, Control Rod Trip Time Test ML20045F0721993-04-0707 April 1993 Rev 9 to Corporate Process Control Program Manual ML20097D9451992-05-28028 May 1992 Rev 11 to Training & Qualification Plan ML20096C2561992-04-30030 April 1992 Public Version of Revised Crisis Mgt Implementing Procedures (Cmip),Including Rev 46 to CMIP-1,Rev 39 to CMIP-4,Rev 45 to CMIP-5,Rev 49 to CMIP-6,Rev 48 to CMIP-7,Rev 42 to CMIP-9 & Rev 3 to CMIP-15 ML20096D5451992-04-0707 April 1992 Public Version of Revised Crisis Mgt Implementing Procedures (Cmip),Including Rev 45 to CMIP-1,Rev 27 to CMIP-13 & Notification of Deletion of CMIP-8.Procedure CMIP-8 Reserved for Future Use ML16131A5241992-03-0101 March 1992 Rev 35 to ODCM Generic Section ML20092M5891992-02-0606 February 1992 Public Version of Revised Crisis Mgt Implementing Procedures,Including Rev 43 to CMIP-1,Rev 43 to CMIP-5,Rev 33 to CMIP-8,Rev 25 to CMIP-13,Rev 6 to CMIP-18,Rev 4 to CMIP-22 & Rev 38 to CMIP-4 ML20094H2391992-01-0101 January 1992 Rev 33 to McGuire Nuclear Station Odcm ML20094H2511992-01-0101 January 1992 Rev 34 to Catawba Nuclear Station Odcm ML16131A5221992-01-0101 January 1992 Rev 32 to Oconee Nuclear Station Odcm ML20087F3931991-12-11011 December 1991 Public Version of Rev 13 to Crisis Mgt Implementing Procedure CMIP-11, Emergency Classification - Mcguire. W/ 920121 Release Memo ML20086K8831991-11-18018 November 1991 Public Version of Revised Crisis Mgt Implementing Procedures (Cmips),Including Rev 42 to CMIP-1,Rev 29 to CMIP-2,Rev 42 to CMIP-5,Rev 12 to CMIP-11 & Rev 37 to CMIP-21 ML20086G7711991-10-16016 October 1991 Public Version of Revs to Crisis Mgt Implementing Procedures (Cmip),Including Rev 41 to CMIP-1,rev 37 to CMIP-4,rev 41 to CMIP-5,rev 46 to CMIP-6 & CMIP-7,rev 32 to CMIP-8,rev 40 to CMIP-9,delete CMIP-12 & Rev 24 to CMIP-13 ML20082C7441991-06-11011 June 1991 Public Version of Rev 13 to Crisis Mgt Implementing Procedure CMIP-12, Classification of Emergency for Oconee Nuclear Station ML20081J9841991-06-10010 June 1991 Rev 3 to EDA-1, Procedure for Estimating Food Chain Doses Under Post-Accident Conditions ML20076A7241991-06-10010 June 1991 Public Version of Crisis Mgt Implementing Procedures, Including Rev 39 to CMIP-1,rev 28a to CMIP-2,rev 44 to CMIP-7,rev 39 to CMIP-9 & Rev 10 to CMIP-11 ML20081K0101991-06-0606 June 1991 Rev 8 to EDA-3, Offsite Dose Projections for McGuire Nuclear Station ML20072S0521991-03-15015 March 1991 Public Version of Revised Crisis Mgt Implementing Procedures,Including Rev 9 to CMIP-11, Classification of Emergency for McGuire Nuclear Station & Rev 11 to CMIP-12, Classification of Emergency for Oconee Nuclear Station ML16148A9621991-02-13013 February 1991 Public Version of Rev 10 to CMIP-12, Crisis Mgt Implementing Procedure ML20066G3621991-02-0101 February 1991 Public Version of Crisis Mgt Implementing Procedures, Including Rev 28 to CMIP-2,Rev 34 to CMIP-4,Rev 38 to CMIP-5,Rev 43 to CMIP-6,Rev 42 to CMIP-7,Rev 29 to CMIP-8, Rev 37 to CMIP-9 & Rev 34 to CMIP-21 ML20082P7611991-01-0101 January 1991 Rev 30 to Odcm,Catawba Nuclear Station ML15217A1291991-01-0101 January 1991 Rev 29 to Odcm,Oconee Nuclear Station ML20072S9621991-01-0101 January 1991 Public Version of Rev 12 to Crisis Mgt Implementing Procedure CMIP-12, Classification of Emergency for Oconee Nuclear Station ML20082P7711991-01-0101 January 1991 Rev 31 to Odcm,Mcguire Nuclear Station ML20072P9621990-11-0808 November 1990 Rev 9 to Crisis Mgt Implementing Procedure CMIP-12, Classification of Emergency for Oconee Nuclear Station ML20028H2211990-10-31031 October 1990 Public Versions of Revised Crisis Mgt Implementing Procedures,Including Rev 37 to CMIP-1,Rev 27a to CMIP-2,Rev 33 to CMIP-4,Rev 37 to CMIP-5 & Rev 42 to CMIP-6 ML20059F4301990-08-22022 August 1990 Public Version of Rev 27 to Crisis Mgt Implementing Procedure CMIP-2, News Group Plan ML20063Q2721990-08-14014 August 1990 Public Version of Revised Crisis Mgt Implementing Procedures,Including Rev 36 to CMIP-1,Rev 32 to CMIP-4,Rev 36 to CMIP-5,Rev 41 to CMIP-6,Rev 40 to CMIP-7,Rev 27 to CMIP-8,Rev 35 to CMIP-9 & Rev 7 to CMIP-11 ML20043F4841990-05-23023 May 1990 Public Version of Crisis Mgt Implementing Procedures, Consisting of Rev 20 to CMIP-13 & Deletion of CMIP-15 & CMIP-17 1999-08-18
[Table view] Category:TEST/INSPECTION/OPERATING PROCEDURES
MONTHYEARML20211A9881999-08-18018 August 1999 Rev 5 to DPC Nuclear Security Training & Qualification Plan ML20204B4141999-03-27027 March 1999 Revised Oconee Nuclear Station Selected Licensee Commitments, List of Effective Pages ML20154L7191998-10-0505 October 1998 Rev 8 to DPC Nuclear Security & Contingency Plan, for Oconee,Mcguire & Catawba Nuclear Stations ML20217F2841998-04-20020 April 1998 Rev 7 to DPC Nuclear Security & Contingency Plan, for Oconee,Mcguire & Catawba Nuclear Stations ML20141F1521997-06-25025 June 1997 Rev 4 to Nuclear Security Training & Qualification Plan ML20134K5401996-10-31031 October 1996 Rev 6 to Chemistry Manual 5.1, Emergency Response Guidelines ML20117J0181996-08-15015 August 1996 Revised Chapter 16 of Oconee Selected Licensee Commitments Manual ML20095H1291995-12-0505 December 1995 Rev to ONS Selected Licensee Commitments (SLC) Manual, Revising SLC 16.6.1, Containment Leakage Tests to Reflect Current Plant Configuration & Update Testing Info ML20091P2461995-08-21021 August 1995 Rev to ONS Selected Licensee Commitments Manual ML16141A8581995-01-0909 January 1995 Revs to Oconee Selected Licensee Commitments Manual ML15224A3521993-10-26026 October 1993 Safety Assurance Directive 6.1, Oconee Nuclear Site Safety Assurance Emergency Response Organization ML20045F0721993-04-0707 April 1993 Rev 9 to Corporate Process Control Program Manual ML20097D9451992-05-28028 May 1992 Rev 11 to Training & Qualification Plan ML20096C2561992-04-30030 April 1992 Public Version of Revised Crisis Mgt Implementing Procedures (Cmip),Including Rev 46 to CMIP-1,Rev 39 to CMIP-4,Rev 45 to CMIP-5,Rev 49 to CMIP-6,Rev 48 to CMIP-7,Rev 42 to CMIP-9 & Rev 3 to CMIP-15 ML20096D5451992-04-0707 April 1992 Public Version of Revised Crisis Mgt Implementing Procedures (Cmip),Including Rev 45 to CMIP-1,Rev 27 to CMIP-13 & Notification of Deletion of CMIP-8.Procedure CMIP-8 Reserved for Future Use ML16131A5241992-03-0101 March 1992 Rev 35 to ODCM Generic Section ML20092M5891992-02-0606 February 1992 Public Version of Revised Crisis Mgt Implementing Procedures,Including Rev 43 to CMIP-1,Rev 43 to CMIP-5,Rev 33 to CMIP-8,Rev 25 to CMIP-13,Rev 6 to CMIP-18,Rev 4 to CMIP-22 & Rev 38 to CMIP-4 ML20094H2511992-01-0101 January 1992 Rev 34 to Catawba Nuclear Station Odcm ML16131A5221992-01-0101 January 1992 Rev 32 to Oconee Nuclear Station Odcm ML20094H2391992-01-0101 January 1992 Rev 33 to McGuire Nuclear Station Odcm ML20087F3931991-12-11011 December 1991 Public Version of Rev 13 to Crisis Mgt Implementing Procedure CMIP-11, Emergency Classification - Mcguire. W/ 920121 Release Memo ML20086K8831991-11-18018 November 1991 Public Version of Revised Crisis Mgt Implementing Procedures (Cmips),Including Rev 42 to CMIP-1,Rev 29 to CMIP-2,Rev 42 to CMIP-5,Rev 12 to CMIP-11 & Rev 37 to CMIP-21 ML20086G7711991-10-16016 October 1991 Public Version of Revs to Crisis Mgt Implementing Procedures (Cmip),Including Rev 41 to CMIP-1,rev 37 to CMIP-4,rev 41 to CMIP-5,rev 46 to CMIP-6 & CMIP-7,rev 32 to CMIP-8,rev 40 to CMIP-9,delete CMIP-12 & Rev 24 to CMIP-13 ML20082C7441991-06-11011 June 1991 Public Version of Rev 13 to Crisis Mgt Implementing Procedure CMIP-12, Classification of Emergency for Oconee Nuclear Station ML20081J9841991-06-10010 June 1991 Rev 3 to EDA-1, Procedure for Estimating Food Chain Doses Under Post-Accident Conditions ML20076A7241991-06-10010 June 1991 Public Version of Crisis Mgt Implementing Procedures, Including Rev 39 to CMIP-1,rev 28a to CMIP-2,rev 44 to CMIP-7,rev 39 to CMIP-9 & Rev 10 to CMIP-11 ML20081K0101991-06-0606 June 1991 Rev 8 to EDA-3, Offsite Dose Projections for McGuire Nuclear Station ML20072S0521991-03-15015 March 1991 Public Version of Revised Crisis Mgt Implementing Procedures,Including Rev 9 to CMIP-11, Classification of Emergency for McGuire Nuclear Station & Rev 11 to CMIP-12, Classification of Emergency for Oconee Nuclear Station ML16148A9621991-02-13013 February 1991 Public Version of Rev 10 to CMIP-12, Crisis Mgt Implementing Procedure ML20066G3621991-02-0101 February 1991 Public Version of Crisis Mgt Implementing Procedures, Including Rev 28 to CMIP-2,Rev 34 to CMIP-4,Rev 38 to CMIP-5,Rev 43 to CMIP-6,Rev 42 to CMIP-7,Rev 29 to CMIP-8, Rev 37 to CMIP-9 & Rev 34 to CMIP-21 ML15217A1291991-01-0101 January 1991 Rev 29 to Odcm,Oconee Nuclear Station ML20082P7711991-01-0101 January 1991 Rev 31 to Odcm,Mcguire Nuclear Station ML20072S9621991-01-0101 January 1991 Public Version of Rev 12 to Crisis Mgt Implementing Procedure CMIP-12, Classification of Emergency for Oconee Nuclear Station ML20082P7611991-01-0101 January 1991 Rev 30 to Odcm,Catawba Nuclear Station ML20072P9621990-11-0808 November 1990 Rev 9 to Crisis Mgt Implementing Procedure CMIP-12, Classification of Emergency for Oconee Nuclear Station ML20028H2211990-10-31031 October 1990 Public Versions of Revised Crisis Mgt Implementing Procedures,Including Rev 37 to CMIP-1,Rev 27a to CMIP-2,Rev 33 to CMIP-4,Rev 37 to CMIP-5 & Rev 42 to CMIP-6 ML20059F4301990-08-22022 August 1990 Public Version of Rev 27 to Crisis Mgt Implementing Procedure CMIP-2, News Group Plan ML20063Q2721990-08-14014 August 1990 Public Version of Revised Crisis Mgt Implementing Procedures,Including Rev 36 to CMIP-1,Rev 32 to CMIP-4,Rev 36 to CMIP-5,Rev 41 to CMIP-6,Rev 40 to CMIP-7,Rev 27 to CMIP-8,Rev 35 to CMIP-9 & Rev 7 to CMIP-11 ML20043F4841990-05-23023 May 1990 Public Version of Crisis Mgt Implementing Procedures, Consisting of Rev 20 to CMIP-13 & Deletion of CMIP-15 & CMIP-17 ML20043B2651990-05-0909 May 1990 Revised Crisis Mgt Implementing Procedures,Including Rev 35 to CMIP-1,Rev 26 to CMIP-2,Rev 31 to CMIP-4,Rev 35 to CMIP-5,Rev 40 to CMIP-6,Rev 39 to CMIP-7,Rev 26 to CMIP-8, Rev 33 to CMIP-9,Rev 2 to CMIP-14 & Rev 10 to CMIP-16 ML20043F4621990-04-20020 April 1990 Rev 5 to Oconee-specific Process Control Manual ML20006C0571990-01-18018 January 1990 Public Version of Rev 33 to Crisis Mgt Implementing Procedure CMIP-1, Recovery Manager & Immediate Staff & Rev 24 to CMIP-2, News Group Plan ML16152A8951990-01-0202 January 1990 Rev 33 to Public Version of Crisis Mgt Plan for Nuclear Stations ML15264A1571990-01-0202 January 1990 Revised Crisis Mgt Implementing Procedures,Including Rev 32 to CMIP-1,Rev 29 to CMIP-4,Rev 33 to CMIP-5,Rev 38 to CMIP-6,Rev 37 to CMIP-7,Rev 32 to CMIP-9,Rev 1 to CMIP-14 & Rev 30 to CMIP-21 ML20012A3791990-01-0101 January 1990 Rev 27 to, Offsite Dose Calculation Manual,Oconee Nuclear Station ML20012A3801990-01-0101 January 1990 Rev 28 to, Offsite Dose Calculation Manual,Oconee,Mcguire & Catawba Nuclear Stations ML20011D2441989-12-0101 December 1989 Crisis Mgt Implementing Procedures ML20012A3731989-11-15015 November 1989 Rev 4 to, Process Control Program Oconee Nuclear Station ML19332C8451989-11-0101 November 1989 Public Version of Revised Crisis Mgt Implementing Procedures,Including Rev 31 to CMIP-1,Rev 28 to CMIP-4,Rev 32 to CMIP-5,Rev 37 to CMIP-6,Rev 36 to CMIP-7,Rev 25 to CMIP-8,Rev 31 to CMIP-9 & Rev 19 to CMIP-13 ML19325F1931989-11-0101 November 1989 Public Version of Rev 32 to, Crisis Mgt Plan for Nuclear Stations 1999-08-18
[Table view] |
Text
.
4 August 21, 1995 To: Manual Holders
Subject:
Oconee SLC Revision This revision to the SLC Manual revin.v. SLC Section 16.9.8 to provide additional restrictions as to when the HPSW system is considered available with regard to supporting the operability of LPSW system.
Please update your copy of this manual as follows:
Remove These Pages Insert These Pagest LOEP 1 LOEP 1 LOEP 5 LOEP 5
.LOEP 6 LOEP 6 16.9-26 16.9-26 16.9-27 16.9.27 16.9-28 16.9-28 16.9-28a Any questions cc erning this revision may be directed to David Nix 803-885-3634.
David Nix Regulatory Compliance By: Conice Breazeale Regulatory Compliance
+
9509010094 950821
>PDR ADOCK 05000269 E-
--.~.._l____PDR_.
Oconee Nuclear Station I
Selected Licensee Commitments List of Effective Pages Eagt Revision Date Cover Letter LOEP 1 8/15/95 LOEP 2 10/93 LOEP 3 5/11/95 LOEP 4 7/31/95 LOEP 5 8/15/95 LOEP 6 8/15/95 LOEP 7 5/11/95 Tab 16.0 16.0-1 1/9/95 16.0 5/11/95 16.0-3 1/9/95 Tab 16.1 16.1-1 Tab 16.2 16.2-1 16.2-2 16.2-3 Tab 16.3 16.3-1 2/91 Tab 16,5 16.5-1 3/91 16.5-2 2/17/94 16.5-3 2/17/94 16.5-4 2/17/94 16.5-5 2/17/94 8/15/95 Page 1
4 EAge No.
Revision Date f
16.9-24 7/31/95 16.9-25 7/31/95 16.9-26 8/15/95 16.9-27 8/15/95 16.9-28 8/15/95 16.9-28a 8/15/95 16.9-29 1/9/95 16.9-30 1/9/95 Tab 16.11 16.11-1 02/93
+
16.11-2 02/93 16.11-3 02/93 16.11-4 02/93 16.11-5 02/93 16.11-6 02/93 16.11-7 02/93 16.11 8 02/93 16.11-9 02/93 16.11-10 07/94 16.11-11 07/94 16.11-12 07/94 16.11-13 07/94 16.11-14 07/94 16.11-15 07/94 16.11-16 07/94 16.11-17 07/94 16.11-18 07/94 8/15/95 Page 5
Revision Page 16.11-19 07/94 16.11-20 07/94 16.11-21 07/94 16.11-22 07/94 16.11-23 07/94 16.11-24 07/94 16.11-25 07/94 16.11-26 2/91 16.11-27 2/91 16.11-28 10/93 16.11-29 10/93 16.11-30 10/93 16.11-31 2/91 16.11-32 2/91 16.11-33 2/91 16.11-34 2/91 16.11-35 2/91 16.11-36 2/91 16.11-37 02/93 16.11-33 02/93 16.11-39 2/91 16.11-40 2/91 16.11-41 10/93 16.11-42 10/93 16.11-43 2/91 16.11-44 2/91 8/15/95 Page 6
i
. s 16.9
' AUXILIARY SYSTEMS 16.9.8 HPSW PUMP REQUIREMENT TO SUPPORT LPSW COMMITMENT Adequate suction to the LPSW Pumps requires water from the CCW system to be supplied.- In order for water to be supplied to LPSW from CCW during a LOCA/ LOOP, HPSW is required to support initial CCW siphon flow and subsequent CCW pump restart.
This requires BOTH of the following conditions:
- 1. Two HPSW Pumps shall be operable and capable of restarting prior to complete drain of the Elevated Water Storage Tank (EWST), to provide sealing water for CCW Pump shafts to prevent loss of siphon flow and to provide cooling for the CCW Pump (s) after re-start of the CCW Pump (s).
AND EITHER 2.a. Elevated water storage tank with HPSW-25 functionally operable to provide sealing / cooling water for CCW Pumps.
OR 2.b. Minimum lake level to provide true gravity flow to the suction of the LPSW Pumps without dependency on siphon flow.
(See SLC 16.9.7 )
APPLICABILITY.
Any time the LPSW system is required to be operable. Action statements apply to all three units.
ACTION:
- a. If the HPSW Jockey Pump is unable to maintain EWST level or fill the EWST, it shall be declared out of service,
- b. If any two HPSW Pumps (HPSWP "A",
HPSWP "B",
or Jockey Pump) are removed from service or inoperable, the LPSW system is not single failure proof.
Enter a 72' hour LCO per Technical Specification 3.3.7.b.
- c. If either of the two Unit 1 Main Feeder Busses is out of service or inoperable, then the LPSW system is not single failure proof.
Enter a 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> LCO per Technical Specification 3.3.7.b.
- d. If three HPSW Pumps (HPSWP "A",
HPSWP "B", and Jockey Pump) are removed from service or inoperable at the same time, then the LPSW system is inoperable. Enter Technical Specification 3.0, 4
8/15/95 16.9-26 1
s rv
- - ~ _ - - - - -
~-
~.
l e.
If the 'EWST is out of service AND the lake level is not adequate t o support gravity flow, then the LPSW system is inoperable.
(NOTE: EWST is considered out of service if HPSW-25 is out of service or if in any way water cannot be supplied from the EWST via the sealing water path to CCW Pumps or if EWST level cannot be maintained > 70,000 gallons). Enter Technical Specification 3.0.
SURVEILLANCE:
Surveillance per SLC 16.9.1 and the Appendix B testing program is adequate to demonstrate the availability of the equipment and systems discussed here.
BASES:
The HPSW system provides support for the LPSW system suction, station fire suppression capability, back up service water to HPI Pump Motor and Bearing coolers, and back up service water to the TDEFW Pump Bearing and Oil coolers.
HPSW system make-up demands are normally met by the HPSW Jockey Pump.
The HPSW system must provide upper guide bearing sealing and motor cooling to the CCW Pumps to ensure the CCW system can provide a suction supply to the LPSW system. Sealing is required any time the CCW system is in the siphon flow mode of operation. Cooling to the CCW Pump motors is required any time the CCW Pumps are required to operate.
At certain lake levels unassisted gravity flow may be possible.
If so, the EWST is not required to support siphon flow by providing sealing of the CCW Pump Upper Guide Bearing to prevent some of the air inleakage that could defeat the ECCW siphon. However, HPSW is still required to support operation of the CCW Pumpo since procedures require that the CCW pumps must be restarted following a LOCA/ LOOP.
LPSW takes suction from the CCW crossover header.
During certain analyzed i
accident conditions, a loss of power to the CCW Pumps for all three units must be assumed. This results in a loss of forced flow to the CCW crossover l
header.
Initially, the sealing requirements are met via the EWST.
The duration of the event may last beyond the capability of the inventory of the EWST.
Therefore the HPSW Pumps must be capable of being started following a loss of power in order to meet the cooling and seal lubrication requirements j
of the CCW Pumps.
The HPSW Jcckey Pump is supplied by " load shed" power and would not be available until after the load shed is reset. The CCW Design Basis Dorament (Section 20.1.1.3) requires a re-start of a CCW Pump within one and one half hours. The load shed must be reset to restart the CCW pump, thus the power would also be available to the Jockey Pump within that time frame.
The Jockey l
Pump is of smaller capacity, would not meet fire protection capacity requirements, and would take longer to refill the EWST.
Therefore, the Jockey l
Pump is considered as a substitute for an HPSW Pump only for purposes of J
8/15/9L 16.9-27 J
d supporting the siphon or che restart"of a CCW Pump and not for Fire Protection.
The HPSW Jockey pump is of smaller capacity than HPSW pumps A and B.
Calculation OSC-5945 "HPSW Pump and Fize Protection Flow Test Acceptance Criteria" calculates the accident loads and concludes the HPSW Jockey pump has sufficient capacity to supply those loads plus system leakage provided it is j
able to maintain EWST level or fill the EWST in normal usage. Accident loads plus system leakage are calculated to be approximately the same as normal j
loads plus normal system leakage.
l f
All three HPSW pumps are powered from the Unit 1 Main Feeder Busses.
Backup power to the Unit 1 Main Feeder Busses 4.c not available from another unit.
Therefore, if one of the two available Unit 1 Main Feeder Busses is removed from service, then the remaining HPSW pumps are vulnerable to a single failure of the other Unit l' Main Feeder Bus.
This would also result in LPSW not being
]
single failure proof since HPSW is necessary for LPSW operation in the i
conditions described above.
This condition would affect LPSW for all three l
units.
1 1
An EWST level of 70,000 gallons is chosen as the minimum level for EWST operability since this is the lowest level which would exist during normal daily operation.
An EWST level of 70.c5C gallons is the setpoint at which an a
HPSW pump in " base" would start to make up to the EWST.
This situation would not be expected to occur during normal system operatior since the HPSW Jockey pump is capable of maintaining EWST level at 100,000 gallons.
REFERENcRR-4 1)
OSC-5409 Rev 3,
" Single Failure Analysis of the ECCW System Supply to'the LPSW System "
i
~
2)
OSC-5349 Rev 1, Mininum I.ake Level Required to Maintain 4
Sufficient NPSH to the LPSW Pumps via Gravity Flow "
3)
OSC 5945 Rev 0, "HPSW Pump and Fire Protection Test Acceptance Criteria" 4)
PIP 0-094-0952 5)
PIP 0-094-0995 j
6)
PIP 0-095-0307 i
7)
PIP 0-095-0174
)
f 8)
Oconee FSAR Sections 9.2.2, 9.5.1, 15.0, Table 9-4, Figure 9-9 5
through 9-12; 1994 Update i
l 9)
Technical Specifications 3.0, 3.3.7, 4.0.4, Table 4.1-2, as amended to 2/1/95.
8/15/95 e
16.9-28 i
_.,___m..
m 1
10)
Selected Licensee Commitments 16.9.1, 16.9.7, as amended to 2/14/95 11)
OSS-0254.00-00-10Cu, Rev 2,
" Design Basis Specification for HPSW 12)
OSS-0254.00-00-1039, Rev 2,
" Design Basis Specification for LPSW i
13)
OSS-0254.00-00-1003, Rev 5,
" Design Basis Specification for CCW "
14)
Letter dated 4/20/94 from J. W. Hampton (DPC) to NRC regarding supplemental information for revision to Tech Spec 3.4.
4 1-n-15 STATION MANAGER APPROVAL DATE
)
i
)
l i
i 8/15/95 16.9-28(a)
-