ML20064N558
| ML20064N558 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 08/31/1982 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8209080417 | |
| Download: ML20064N558 (23) | |
Text
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1 TENNESSEE VALLEY AUTHORITY CH ATT A NOOGA. TENN ESSEE 37401 400 Chestnut Street Tower II t
August 31, 1982 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555
Dear Mr. Denton:
?
In the Matter of the
)
Docket Nos. 50-259 Tennessee Valley Authority )
50-260 50-296 Enclosed is the proposed inservice pump and valve testing program for the Browns Ferry Nuclear Plant units 1, 2, and 3 written to Section XI of the ASME Boiler and Pressure Vessel Code, 1980 Edition, and Addenda through Winter 1980. Included are requests for relief from ASME code requirements submitted for NRC review pursuant to 10 CFR Part 50, section 50.55a(g)(5)(iii). The proposed technical specifications which will incorporate the requirements of the ASME code and the enclosed program into the Browns Ferry license are still undergoing internal preparation and review and will be submitted in the near future.
The enclosed program constitutes a consolidation of all previous submittals made regarding the Browns Ferry inservice pump and valve
' testing program, including various submittals of relief requests. All such previous submittals are superceded since the enclosed constitutes the complete and final proposed program.
In accordance with the requirements of 10 CFR Part 170.22, Class III and Class I fees totalling $4,400 were previously forwarded to the NRC for review of Browns Ferry units 1 and 2 inservice pump and valve testing y
program. The fees were forwarded in response to NRC letter from Reba M.
Diggs to H. G. Parris (TVA) dated May 11, 1979. The unit 3 pump and valve testing program had been submitted for NRC review before 10 CFR 170.22 became effective-Additional fees will be provided with the planned technical specitication submittal.
Very truly-yours, o oto TENNESSEE VALLEY AUTHORITY L. M. Mills,' Manager y
Nuclear Licensing d sworn to [/hA 1982.
o Subscribe f re me is (
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An Equal OpportJnity Ernployer o
. Mr. Harold R. Denton August 31, 1982 cc (Enclosure):
U.S. Nuclear Regulatory Commission Region II ATTN: James P. O'Reilly, Regional Administrator 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 Mr. R. J. Clark Browns Ferry Project Manager U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, Maryland 20014
ENCLOSURE ASME SECTION XI INSERVICE PUMP AND VALVE TESTING PROGRAM BRO'dNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 (DOCKET NOS. 50-259, -260, -296) - Inservice Testing Program for ASME Code Classes 1, 2, and 3 Pumps - Valves to be Cycled for ASME Section XI (IWV-3410, 3510, 3520, and 3610) - Category A Valves and Testing Criteria ( Appendix J,Section XI, or both) - Requests for Relief
I, ATTACHMENT 1 BROWNS FERRY NUCLEAR PLANT INSERVICE TESTING PROGRAM FOR ASME CODE CLASSES 1, 2, AND 3 PUMPS The following table provides a tabulation of pumps that are subject to the testing requirements of Subsection IWP of Section XI of the ASME Boiler and Pressure Vessel Code,1980 Edition, and Addenda through Winter 1980. This program will be applicable until September 1988.
This tabulation identifies the pm ps to be tested, pump code classes, parameters to be measured, and test intervals.
PUMPS TO BE TESTED Q.1
.Th y
L or P EU142 h
Class R
fi E
RHR 4
2 NR Q
Q Q
NA Q
NR HPCI 1
2 Q
Q Q
Q NA Q
Q RCIC 1
2 Q
Q Q
Q NA Q
Q Core Spray 4
2 NR Q
Q Q
NA Q
2 NR NR Q
Q NA Q
Q RHRSWCl) 12 3
NR Q
Q Q
NA Q
NR Symbols N
Rotative Speed L or P Lubricant Level or Pressure P
Differential Pressure NR Not Required Pi Inlet Pressure NA Not Available Qi Flow Rate M
Monthly Tb Bearing Temperature Q
Quarterly V
Vibration Amplitude A
Annually (1) These pumps are in a system cmrnon to units 1, 2, and 3.
Ability to start the pumps will be demonstrated from each control room, but comparison to baseline parameters of vibration, flow rate, and differential pressure will-be perfonned for instrianentation in unit 3 only, for consistency of data.
AITACHMENT 2 The following table provides a listing of systems, valve ntanbers, types, categories, test frequencies, and type of tests for those valves to be cycled in accordance with ASME Section XI, IW-3410, 3510, 3520, and 3610.
l 1
SYSTEM VALVE CATECORY TEST FREOUENCY TYPE OF TEST Main Steam 1-14 A
Q Full Cycle 1-15 A
Q Full Cycle 1-26 A
Q Full Cycle 1-27 A
Q Full Cycle 1-37 A
Q Full Cycle 1-38 A
Q Full Cycle 1-51 A
Q Full Cycle 1-52 A
Q Full Cycle Main Steam 1-4 BC 60 months Meets IWV-3510 (Relief Valves) 1-5 BC 60 months Meets IWV-3510 1-18 BC 60 months Meets IWV-3510 1-19 BC 60 months Meets IWV-3510 1-22 BC 60 months Meets IWV-3510 1-23 BC 60 months Meets IWV-3510 1-30 BC 60 months Meets IWV-3510 1-31 BC 60 months Meets IWV-3510 1-34 BC 60 months Meets IWV-3510 1 -41 BC 60 months Meets IWV-3510 1-42 BC 60 months Meets IWV-3510 1-179 BC 60 months Meets IWV-3510 1-180 BC 60 months Meets IWV-3510 Feedwater (Check Valves) 3-554 AC Operating Cycle Full Cycle 3-558 AC Operating Cycle Full Cycle 3-568 AC Operating Cycle Full Cycle 3-572 AC Operating Cycle Full Cycle RHRSW 23-34 B
Q Meets IWV-3412(a) 23-40 B
Q Meets IWV-3412(a) 23-46 B
Q Meets IWV-3412(a) 23-52 B
Q Meets IWV-3412(a) 23-57 (U 1&2)
B Q
Full Cycle RHRSW (Check Valves) 23-50 2 C
Q Full Cycle 23-506 C
Q Full Cycle 23-522 C
Q Full Cycle 23-526 C
Q Full Cycle 23-542 C
Q Full Cycle 23-546 C
Q Full Cycle 23-561 C
Q Full Cycle 23-565 C
Q Full Cycle 23-579 (510 U1) C Q
Full Cycle i
23-580 (530 U1) C Q
Full Cycle 23-581 (550 U1) C Q
Full Cycle 23-582 (569 U1) C Q
Full Cycle 23-591 C
Q Full Cycle 23-594 C
Q Full Cycle l
23-597 C
Q Full Cycle 23-588 C
Q Full Cycle l-
SYSTEM VALVE CATEGORY TEST FREQUENCY TYPE OF TEST SLC 63-514 C
Q Meets IWV-3522 (Check Valves)63-516 C
Q Meets IWV-3522 63-525 AC Operating Cycle Meets IWV-3522 63-526 AC Operating Cycle Meets IWV-3522 SLC 63-512 C
Operating Cycle Tech. Spec. 4.4.A.2 (Relief Valve)63-513 C
operating Cycle Tech. Spec. 4.4.A.2 SLC 63-8A D
2-year Cycle IWV-3610 (Explosive 63-8B D
2-year Cycle IWV-3610 Valves)
EECW 67-13 B
Q Full Cycle 67-14 B
Q Full Cycle 67-17 B
Q Full Cycle 67-18 B
Q Full Cycle 67-21 B
Q Full Cycle 67-22 B
Q Full Cycle 67-25 B
Q Full Cycle 67-26 B
Q Full Cycle 67-48 B
Q Full Cycle 67-49 B
Q Full Cycle (Unit 1 67-56 B
Q Full Cycle Only)
EECW 67-502 C
Q Meets IWV-3522 (Check Valves)67-582 C
Q Meets IWV-3522 67-622 C
Q Meets IWV-3522 67-619 C
Q Meets IWV-3522 67-541 C
Q Meets IWV-3522 67-542 C
Q Meets IWV-3522 67-584 C
Q Meets IWV-3522 67-585 C
Q Meets IWV-3522 67-648 C
Q Meets IWV-3522 67-649 C
0 Meets IWV-3522 67-656 C
Q Meets IWV-3522 67-657 C
Q Meets IWV-3522 67-559 C
Q Meets IWV-3522 67-558 C
Q Meets IWV-3522 67-638 C
Q Meets IWV-3522 67-639 C
Q Meets IWV-3522 67-600 C
Q Meets IWV-3522 67-601 C
Q Meets IWV-3522 67-659 C
Q Meets IWV-3522 67-660 C
Q Meets IWV-3522 l
67-556 C
Q Meets IWV-3522 l
67-598 C
Q Meets IWV-3522 67-693 C
0 Meets IWV-3522 67-694 C
Q Meets IWV-3522 l
67-695 C
0 Meets IWV-3522 j
67-696 C
Q Mets IWV-3522 67-705 C
Q Meets IWV-3522 67-706 C
Q Meets IWV-3522 67-703 C
Q Meets IWV-3522 67-704 C
Q Meets IWV-3522
SYSTEM VALVE CATEGORY TEST-FREQUENCY TYPE-OF-TEST EECW 67-715 C
Q Meets IWV-3522 (Check Valves67-716 C
Q Meets IWV-3522 Continued)67-713 C
Q Meets IWV-3522 67-714 C
Q Meets IWV-3522 67-723 C
Q Meets IWV-3522 67-724 C
Q Meets IWV-3522 67-725 C
Q Meets IWV-3522 67-726 C
Q Meets IWV-3522 67-737 C
Q Meets IWV-3522 67-738 C
Q Meets IWV-3522 67-735 C
0 Meets IWV-3522 67-736 C
Q Meets IWV-3522 Recirculation 68-3 B
Cold Shutdown Full Cycle Loops 68-79 B
Cold Shutdown Full Cycle Recirculation 68-508 AC Operating Cycle Full Cycle Loops68-523 AC Operating Cycle Full Cycle AC Operating Cycle Full Cycle (Check Valves)68-550 68-555 AC Operating Cycle Full Cycle RWCU 69-1 A
Q Full Cycle 69-2 A
Q Full Cycle RWCU 69-579 AC Operating Cycle Full Cycle (Check Valves)69-624 (Unit 3) AC Operating Cycle Full Cycle RCIC 71-2 A
Cold Shutdown Full Cycle 71-3 A
Cold Shutdown Full Cycle 71-5 B
Q Full Cycle 71-6A B
Q Full Cycle 71-6B B
Q Full Cycle 71-34 B
Q Full Cycle 71-8 B
Q Meets IWV-3412 (a) 71-9 B
Q Meets IWV-3412 (a) 71-10 B
Q Meets IWV-3412 (a) 71-17 B
Q Full Cycle 71-18 B
Q Full Cycle 71-25 B
Q Full Cycle 71-37 B
Cold Shutdown Full Cycle 71-39 A
Cold Shutdown Full Cycle 71-40 AC Cold Shutdown Full Cycle 71-22 B
Q Meets IWV-3412 (a)
Meets IWV-3522 (Check Valves)71-597 C
Q Meets IWV-3522 71-598 C
Q Meets IWV-3522 71-599 C
Q Meets IWV-3522 71-600 C
Q Meets IWV-3522 71-508 C
operating cycle Internal Inspection 71-592 AC Q
Meets IWV-3522 RCIC 71-543 C
60 Months Meets IWV-3510 (Relief Valves)
SYSTEM VALVE CATEGORY TEST-FREOUENCY TYPE-OF-TEST RCIC 71-14 A
None (Locked Valves) 71-32 A
None HPCI 73-81 A
Q Full Cycle 73-2 A
Cold Shutdown Full Cycle 73-3 A
Cold Shutdown Full Cycle 73-5 B
Q Full Cycle 73-6A B
Q Full Cycle 73-6B B
Q Full Cycle 73-16 B
Q Meets IWV-3412 (a) 73-18 B
Q Meets IWV-3412 (a) 73-19 B
Q Meets IWV-3412 (a) 73-26 B
Q Full Cycle 73-27 B
Q Full Cycle 73-34 B
Cold Shutdown Full Cycle 73-43 B
Q Meets IWV-3412 (a) 73-44 A
Cold Shutdown Full Cycle 73-45 AC Cold Shutdown Full Cycle 73-30 B
Q Full Cycle HPCI 73-574 C
60 Months Meets IWV-3510 (Relief Valves)
HPCI 73-23 A
None (Locked 73-24 A
None Valves)
HPCI 73-517 C
operating Cycle Internal Inspection (Check Valves)73-603 AC Q
Meets IWV-3522 73-609 AC Q
Meets IWV-3522 73-633 C
Q Meets IWV-3522 73-634 C
Q Meets IWV-3522 73-635 C
0 Meets IWV-3522 73-636 C
Q Meets IWV-3522 RHR 74-1 B
Q Full Cycle 74-2 B
Q Full Cycle 74-7 B
Q Full Cycle 74 B Q
Full Cycle 74-13 B
Q Full Cycle 74-24 8
Q Full-Cycle 74-25 B
Q Full Cycle 74 B Q
Full Cycle 74-35 B
Q Full Cycle 74-36 B
Q Full Cycle 74-47 A
Cold Shutdown Full Cycle 74-48 A
Cold Shutdown Full Cycle 74-52 B
Q Full Cycle 74-53 A
Cold shutdown Full Cycle 74-54 AC Cold Shutdown Full Cycle 74-57 A
Q Full Cycle 74-58 A
Q Full Cycle 74-59 B
Q Full Cycle 74-60 A
Q Full Cycle
SYSTEM VALVE
_ CATEGORY TEST FREQUENCY TYPE OF-TEST RHR 74-61 A
Q Full Cycle (Continued) 74-66 B
Q Full Cycle 74-67 A
Cold Shutdown Full Cycle 74-68 AC Cold Shutdown Full Cycle 74-71 A
Q Full Cycle 74-72 A
Q Full Cycle 74-73 B
Q Full Cycle 74-74 A
Q Full Cycle 74-75 A
Q Full Cycle 74-77 A
Cold Shutdown Full Cycle 74-78 A
Cold Shutdown Full Cycle 74-96 B
Q Full Cycle 7 4-97 B
Q Full Cycle 74-100 (U 2 & 3)B Q
Full Cycle 74-101 (U 1 & 2)B Q
Full Cycle 74-98 B
Q Full Cycle 74-99 B
Q Full Cycle RHR 74-559A C
Q Meets M -3522 (Check Valves) 74-559B C
Q Meets M -3522 74-559C C
Q Meets M -3522 74-559D C
Q Meets M -3522 74-661 AC operating Cycle Meets M -3522 74-662 AC operating Cycle Meets M -3522 74-560A C
Q Meets M -3522 74-560B C
Q Meets M -3522 74-560C C
Q Meets M -3522 74-560D C
Q Meets M -3522 Core Spray 75-2 B
Q Full Cycle 75-9 B
Q Full Cycle 75-11 B
Q Full Cycle 75-22 B
Q Full Cycle 75-23 B
Q Full Cycle 75-25 A
Cold Shutdown Full Cycle 75-26 AC Cold Shutdown Full Cycle 75-30 B
Q Full Cycle 75-37 B
Q Full Cycle 75-39 B
Q Full Cycle 75-50 B
Q Full Cycle 75-51 B
Q Full Cycle 75-53 A
Cold Shutdown Full Cycle 75-54 AC Cold Shutdown Full Cycle 75-57 A
Q Full Cycle 75-58 A
Q Full Cycle Core Spray 75-537A C
Q Meets M -3522 (Check Valve) 75-5378 C
Q Meets M -3522 75-537C C
Q Meets M -3522 75-538D C
Q Meets M -3522 75-570A C
Q Meets M -3522 75-570B C
0 Meets M -3522 l
75-570C C
0 Meets M -3522 75-570D C
Q Meets M -3522
SYSTEM VALVE CATEGORY TEST FREQUENCY TYPE OF TEST Core Spray 75-507A C
60 Months Meets IWV-3510 (Relief Valves) 75-507B C
60 Months Meets IWV-3510 75-507C C
60 Months Meets IWV-3510 75-507D C
60 Months Meets IWV-3510 Floor and Equipment Drains 77-2A A
Q Full Cycle 77-2B A
Q Full Cycle 77-15A A
Q Full Cycle 77-15B A
Q Full Cycle CRD Hydraulic System 85-39A-(1-185)B B 10% of valves Full Cycle 85-39B-(1-185)B B every 16 weeks, Full Cycle valves also cycle during any unit scram, all valves also tested each refueling outage e,
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ATTACHMENT ~4 This table identifies the Category A valves, and the testing criteria (Appendix J,Section XI, or both) to be satisfied at each refueling outage.
Testing criteria in based on Items 2, 3, and 4 of Testing Recuiraments and Recuest forRelief, attached to NRC (T. A. Ippolito) letter to TVA (N. B.
Hughes) of August 8,1978.
TESTING CRITERIA Valve No.
10 CFR 50. AccendirJ ASME-Section XI 1-14 X
1-15 X
1-26 X
1-27 X
1-37 X
1-38 X
1-51 X
1-52 X
1-55 X
1-56 X
3-554 X
3-558 X
3-568 x
3-572 X
63-525 X
63-526 X
68-508 X
68-523 X
68-550 X
68-555 X
69-1 X-6%2 X
69-579 X
69-624 (Unit 3)
X l
71-2 X
71-3 X
71-39 X
i 71-40 X
71-14 X
71-32 X
71-580 X
71-592 X
6 i
Valve No.
10 CFR 50. Accehdir J EME Section XI 73-2 X
73-3 X
73-81 X
73-44 X
73-45 X
73-23 X
73-24 X
73-603 X
73-609 X
74-47 X
X 74-48 X
X 74-53 X
X 74-54 X
X 74-57 X
74-58 X
74-60 X
l 74-61 X
i 74-67 1
X 74-68 X
X 74-71 X
74 X 74-74 X
74-75 X
74-77 X
X 74-78 X
X-74-661 X
X 74-662 X
X 75-25 X
X 75-26 X
X 75-53 X
X 75-54 X
X 75-57 X
75-58 X
i 77-2A X
77-2B X
77-15A X
77-15B X
t I
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ATTACHMENT 4 REQUEST FOR RELIEF
REOUEST-FOR-RFi TEF-PV - 1 RHR Pumps A, B, C, D; HPCI Pap; RCIC pump; Core Spray COMPONENTS Pumps A, B, C, D; SLC Pmps A, B; RHRSW Pumps A1, A2, A3, B1, B2, B3, C1, C2, C3, D1, D2, D3.
Class 2, except RHRSW Pmps which are Class 3.
CLASS FUNCTION ECCS and Core Heat Removal (RHRSW Pmps).
1ESI REOUIREMENT -
Monitoring bearing temperatures during quarterly inservice testing.
BASIS FOR All of these p mps, except HPCI and RCIC, have water RELIEF lubricated pmp bearings. The RHR, Core Spray, SLC, and RHRSW pump bearings are lubricated by water supplied by the pump itself. Satisfactory pm p operation is indicative of sufficient bearing lubrication. HPCI and RCIC have oil cooled bearings, but these pumps can't be operated long enough to reach stable bearing temperatures without overheating the torus and causing plant shutdown.
The HPCI bearings, which are instrumented, are monitored during testing. RCIC bearings do not have temperature instrumentation.
ALTERNATE None TESTING O
REQUEST FOR PFLTEF PV - 2 Standby Liquid Control Pumps COMPONENTS CLASS 2
FUNCTION ECCS and alternate reactor shutdown capability.
JESI REQUIREMENT -
Quarterly measurement of inlet pressure and differential pressure.
BASIS FOR During testing these pumps take suction from a test tank RELIEF
~
that has a relatively small range of level variation during pump operation. In addition, these are positive displacement pumps whose inlet pressure does not affect pump operating characteristics. Therefore, differential pressure measurement is not important.
ALTERNATE Ptznp discharge pressure will be measured during quarterly TEST EQ testing. A caution note has been placed in the instruction that governs this test so that a minimum level is maintained in the test tank. This ensures discharge pressure is an adequate indication of pump perfonnance.
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REQUEST FOR PFT TEF PV -- 3 Standby Liquid Control Ptanps COMPONENTS 2
CLASS ECCS and alternate reactor shutdown capability.
FUNCTION
.IESI REQUIREMENT -
Running pumps for five minutes before measuring parameters.
BASIS FOR These pumps are tested by circulating liquid to a test RFI.TEF tank for 2 minutes and measuring the volume change in the tank. Running for 5 minutes before measuring parameters is not compatible with the system design. However, a 15 minute functional test which involves recirculating water back to the test tank is run before the system is lined up for the Section XI test requirement. This 15 minute test is of sufficient length for all parameters to stabilize and the two minute test is run innediately afterward.
ALTERNATE Measure parameters during 2 minute test.
TESTING i
1 t
REQUEST FOR RFT.TEF PV - 4 All systems SYSTEM
.IESI REQUIREMENT -
Analysis of test data within 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> per IWP - 3220.
BASIS FOR RFt.TEF Due to the time involved in processing surveillance instructions to the reviewer and the possibility of weekends and/or holidays falling between running tests and completely reviewing the results, 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> is impractical.
ALTERNATE Pump parameters of flow rate and differential pressure TESTING will be reviewed immediately after the test by the individual performing the test to verify that they do not fall within the " Required Action Range" of Table IWP-3100-2. complete analysis of test data will be performed within 4 working days of the tests. If the pump parameters fall within the " Required Action Range", the individual performing the test will notify the cognizant reviewer and carry out the necessary action required by the code.
\\
REOUEST FOR-RFLTFF-PV
-S COMPONENTS Installed plant instrumentation and portable instruments used to measure pump parameters.
1, 2, and 3 CLASS FUNCTION Measurement of pump parameters.
IESI REQUIREMENT -
Instrument accuracy shall be within the limits of Table IWP-4110-1.
BASIS FOR RELTFF The accuracy of installed plant indicators is 12% of full scale. However, the accuracy of installed transmitters and square-rooters is 0.5% and when these are taken into account the instrument loop accuracies are 2.5%
and 3.0% for pressure loops and flow loops, respectively.
The plant installed instruments will continue to be used since any alternate method such as connecting test instruments into the system or replacing plant instrumentation, will not provide sufficient benefit to outweigh the added cost and manpower of the alternate methods.
The portable instrument used to measure vibration amplitude has an accuracy of 11% of full scale. The instrument has been used from the beginning of the program to collect the vibration data and develop all the vibration baselines that are used in the pump program.
Since all other requirements for measuring amplitude (IWP-4520) have been met and since the instrument used is an accepted standard method for industrial vibration measurements, the instrument will continue to be used.
ALTERNATE TESTING An equipment diagnostic program using much more sophisticated instruments and methods monitors rotating equipment at the plant and provides much better vibration data on the pumps than the one required data point of the pump program. This program is done in addition to the test requirement.
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REQUEST FOR RFfTEF PV - 6 All valves COMPONENTS A,B,C CLASS Various functions FUNCTION
.IESI REQUIREMENT -
Corrective action on an inoperable valve required before startup per IWV-3417 and IWV-3523.
BASIS FOR Limiting conditions for startup have been analyzed in RFTTEF Browns Ferry Technical Specifications, Technical Bases 3.4.B, 4.4, 3.5 A, 3.5.B, 3.5.C. 3.5.E, 3.5.F.
ALTERNATE TESTING Valve inoperability will preclude unit startup only if the valve places the system itself in a position of preventing startup per present technical specifications.
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REOUEST FOR RFITEF PV - 7 I
SYSTEM
- CRD (Scram Function)85-39A - (1-185)
VALVES85-39B - (1-185)
CLASS 1
CATEGORY
- B Provide flow path for water for control rod scrams.
FUNCTION IESI REQUIREMENT -
Exercised once every 3 months.
BASIS FOR RELIEF
- Cycling these valves requires scraming a control rod.
There are 185 control rods in the reactor. Scramming every rod once every three months is not practical for the following reasons, a.
A power reduction is required to test the scram function. Reducing power for the length of time required to scram 185 rods places an unfair burden on the licensee.
b.
Fuel preconditioning must follow this power reduction to avoid possible fuel damage. The longer the reduction in power, the longer the preconditioning.
ALTERNATE 10% of the rods will be scram tested every sixteen weeks, TESTING and all rods will be scram tested during refueling, per present Technical Specifications. In addition, all rods are provided with the same test during normal operation when the unit scrams.
._.._..._y
REQUEST FOR RFLTEF PV - 8 SYSTEMS /
Feedwater 554, 3-558, 3-568, 3-572 COMPONENTS (VALVES)
Standby Liquid Control 525,63-526 Reactor Recirculation System 508,68-523, 68-550,68-555 Reactor Water Cleanup 579,69-624 (Unit 3 only)
Residual Heat Removal 661,74-662 1
CLASS CATEGORY AC FUNCTION All are containment isolation, plus; prevents backflow in feedwater lines (System 3), prevents backflow in RWCU System (System 69), and thermal expansion relief (System 74).
JEST REQUIREMENT -
Exercise valves for operability quarterly.
BASIS FOR RELIEF
- All of these valves are check valves whose operation cannot be verified during plant operation. Testing requires entry into primary containment, stopping RWCU system operation (System 69), or interrupting seal water to the recirculation pumps (System 68) which is very likely to cause seal damage.
ALTERNATE TESTING Valves will be tested in accordance with 10 CFR 50, Appendix J, at each refueling outage. Testing each refueling outage for check valves is in line with the I
l NRC's latest philosophy on testing check valves.
4
RE00EST FOR RFTTEF PV - 9 SYSTEMS /
COMPONENTS Reactor Core Isolation Cooling 508 (VALVES)
High Pressure Coolant Injection 517 2
CLASS CATEGORY C
FUNCTION Valves prevent backflow to the torus from the RCIC and HPCI, respectively.
IESI REQUIREMENT -
Exercise valve for operability quarterly.
BASIS FOR RFTTEF
- Valves cannot be cycled without introducing torus water into the vessel. This water is of such quality that it should not be introduced into the vessel unless an accident has occurred.
ALTERNATE TEST.MQ
- Valve internals will be visually and manually checked each refueling outage by removal of valve access plates.
Testing check valves each refueling outage is in line with the NRC's latest philosoophy on testing check valves.
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