ML20035F072
| ML20035F072 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 03/22/1993 |
| From: | SOUTHERN NUCLEAR OPERATING CO. |
| To: | |
| Shared Package | |
| ML20035F070 | List: |
| References | |
| PROC-930322, NUDOCS 9304200223 | |
| Download: ML20035F072 (18) | |
Text
. _ _ -_- _ -
GEORGIA POWER COMPANY INSERVICE TEST PROGRAM (ISI-P-008)
FOR VOGTLE ELECTRIC GENERATING PLANT UNIT 1
PREPARED BY SOUTHERN NUCLEAR OPERATING COMPANY INSPECTION AND TESTING SERVICES GROUP SNC GPC REY.
DATE DESCRIPTION PREP'D EY'D APW.
M M*
M A A A 9' E 2
. =
' " XXXXXX
~~
=,-
XXXXXX XXXXXX
.~-
-~~
re - XXXXXX
=_e XXXXXX
~~
==:. XXXXXX
:
XXXXXX
,.: n,
:
oc w e;s *r a o DR ADOCK 0500 4
V0GTLE ELECTRIC GENERATING PLANT - UNIT I INSERVICE TEST (IST) PROGRAM ISI-P-008 Revision 7 Summary of Chances List of Effective Revised to indicate the current revision number of each Pages page in the program document.
See below for pages affected.
Table 3c-1 Revised to correct a previous typographical error. The system number was changed from 1203 to 1204.
Table 3f-3 Revision # 5 was added to page.
Revision number had been omitted in previous issue.
The latest revision number for the page is indicated even though this package constitutes Revision 7 to the IST Program document. Editorial correction only.
Table 3g-5 Revision # 5 was added to page.
Revision number had been omitted in previous issue.
The latest revision number for the page is indicated even though this package constitutes Revision 7 to the IST Program document. Editorial correction only.
Page 4-28 Revised to add valve 1-1208-U6-124.
Page 4-30 Revised to change valve type for HV 8220.
Page 4-39 Safety position was changed to 0/C and disassembly.was added to confirm reverse flow closure and reference to Relief Request RR-23 was added for valve 1301-U4-006.-
Safety position was changed from 0/C to O for valve
!301-U4-404.
Page 5-14 Relief Request RR-14 was revised to change frequency for disassembly and manual exercising from every outage to every other outage for valves 1206-U6-015 and 016.
Page 5-23 Relief Request RR-23 was revised to include valve 1301-U4-006.
Page 5-28 Added Relief Request RR-28 for testing valve 1208-U6-124.
Page 6-31 Cold Shutdown Justification CS-31 was revised to delete valve 1301-U4-006.
Testing for this valve has been added to Relief Request RR-23.
VEGP-1 ISI-P-008 List of Effective Paaes Distribution List, Rev. 6 Table of Contents, Rev. 4
==
Introduction:==
Page 1-1, Rev. O Page 1-2, Rev. 5 Page 1-3, Rev. 6 Pumps:
Page 2-1, Rev. 4 Page 2-2, Rev. O Page 2-3, Rev. 1 Page 2-4, Rev. 2 Page 2-5, Rev. 2 Page 2-6, Rev. O Page 2-7, Rev. O Page 2-8, Rev. 2 Page 2-9, Rev. 5 Page 2-10, Rev. 2 Page 2-11, Rev. O NSCW:
Table 3a-1, Rev. 4 Table 3a-2, Rev. 4 Table 3a-3, Rev. 5 Table 3a-4, Rev. 5 Table 3a-5, Rev. 5 Table 3a-6, Rev. 5 Table 3a-7, Rev. 5 Table 3a-8, Rev. 5 Table 3a-9, Rev. 5 Table 3a-10,Rev. 5 Drawings - 151-0-201, Rev. 1 ISI-D-202, Rev. 1 ISI-D-203, Rev. 1 ISI-D-204, Rev. 1 ISI-D-205, Rev. 1 151-D-206, Rev. 1 ISI-D-207, Rev. 2 ISI-D-208, Rev. 2 Figures - 3a-1, Rev. 0 3a-2, Rev. 0 3a-3, Rev. 0 3a-4, Rev. 0 3a-5, Rev. 0 3a-6, Rev. 0 l
3a-7, Rev. 0 3a-8, Rev. 0 1 of 6 002826 008 Rev. 7
CCW:
Page 3b-1, Rev. 4 Table 3b-1, Rev. 4 Table 3b-2, Rev. 5 Table 3b-3, Rev. 5 Table 3b-4, Rev. 5 Table 3b-5, Rev. 5 Table 3b-6, Rev. 5 Table 3b-7, Rev. 5 Drawings - 151-D-209, Rev. 1 ISI-D-210, Rev. 1 ISI-D-211, Rev. 1 ISI-D-212, Rev. 1 ISI-D-213, Rev. 1 ISI-D-214, Rev. I Figures - 3b-1, Rev. 0 3b-2, Rev. 0 3b-3, Rev. 0 3b-4, Rev. 0 3b-5, Rev. 0 3b-6, Rev. O SI:
Page 3c-1, Rev. 4 Table 3c-1, Rev. 7 g
Table 3c-2, Rev. 5 Table 3c-3, Rev. 5 Drawings - ISI-D-215, Rev. 2
- ISI-D-216, Rev. 2 Figures - 3c-1, Rev. 0
- 3c-2, Rev. O RHR:
Page 3d-1, Rev. 4 Table 3d-1, Rev. 5 Table 3d-2, Rev. 5 Table 3d-3, Rev. 5 Drawings - ISI-D-217, Rev. 5 ISI-D-218, Rev. 5 Figures - 3d-1, Rev. 0 3d-2, Rev. O CS:
Page 3e-1, Rev. 4 Table 3e-1, Rev. 4 Table 3e-2, Rev. 5 Table 3e-3, Rev. 5 Drawings - ISI-D-219, Rev. 2 ISI-D 220, Rev. 2 Figures - 3e-1, Rev. 0 3e-2, Rev. O CVCS Page 3f-1, Rev. 4 Table 3f-1, Rev. 4 Table 3f-2, Rev. 5 Table 3f-3, Rev. 5 Table 3f-4, Rev. 4 Table 3f-5, Rev. 5 Table 3f-6, Rev. 5 2 of 6 002826 008 Rev. 7
i i
CVCS: (continued) l Drawings - ISI-D-221, Rev. 2 151-D-222, Rev. 2
{
i ISI-D-228, Rev. 2 ISI-D-229, Rev. 2 Figures - 3f-1, Rev. 0 3f-2, Rev. O 3f-3, Rev. O 3f-4, Rev. 0 AFW:
Page 3g-1, Rev. 4 i
Page 3g-2, Rev. 4 Table 3g-1, Rev. 4 l
Table 3g-2, Rev. 4 l
Table 3g-3, Rev. 5 Table 3g-4, Rev. 5 Table 3g-5, Rev. 5 i
Drawings - ISI-D-223, Rev. I i
ISI-D-224, Rev. 1-j ISI-D-225, Rev. I Figures - 3g-1, Rev. O i
3g-2, Rev. 0 4
3g-3, Rev. 0 l
ESF:
Page 3h-1, Rev. 4 I
Table 3h-1, Rev. 4 j
Drawings - ISI-D-226, Rev. 2 ISI-D-227, Rev. 2 Figures - 3h-1, Rev. 0 3h-2, Rev. O I
Pump Relief Requests:
Page 3-1, Rev. 5 Page 3-2, Rev. 5 Page 3-3, Rev. 2 Page 3-4, Rev. 5 Page 3-5, Rev. 6 Valves:
Page 4-1, Rev. O Page 4-2, Rev. O Page 4-3, Rev. 0 Page 4-4, Rev. I Page 4-5, Rev. 2 Page 4-6, Rev. 2 Page 4-7, Rev. 2 Page 4-8, Rev. 1 Page 4-9, Rev. 0 Page 4-10, Rev. O Page 4-11, Rev. 2 Page 4-12, Rev. 2 Page 4-13, Rev. 2 Page 4-14, Rev. 1 Page 4-15, Rev. O Page 4-16, Rev. 1 i
3 of 6 002826 008 Rev. 7
i Valves:
(continued)
Page 4-17, Rev. 1 Page 4-18, Rev. 1 Page 4-19, Rev. 1 Page 4-20, Rev. 1 Page 4-21, Rev. I Page 4-22, Rev. 4 Page 4-23, Rev. 2 Page 4-24, Rev. 2 Page 4-25, Rev. 6 Page 4-26, Rev. 4 Page 4-27, Rev. 2 Page 4-28, Rev. 7 I
Page 4-29, Rev. 5 Page 4-30, Rev. 7 Page 4-31, Rev. 1 Page 4-32, Rev. 1 l
Page 4-33, Rev. 2 Page 4-34, Rev. 2 Page 4-35, Rev. 6 Page 4-36, Rev. 6 Page 4-37, Rev. 1 Page 4-38, Rev. 1 Page 4-39, Rev. 7 l
Page 4-40, Rev. O Page 4-41, Rev. 2 Page 4-42, Rev. 1 Page 4-43, Rev. 2 Page 4-44, Rev. 2 Page 4-45, Rev. 6 Page 4-45a, Rev. 6 Page 4-46, Rev. 1 Page 4-47, Rev. O Page 4-48, Rev. 1 Page 4-49, Rev. 2 Page 4-50, Rev. 2 Page 4-51, Rev. 1 Page 4-52, Rev. 1 Page 4-53, Rev. O Page 4-54, Rev. 6 Page 4-55, Rev. 1 Page 4-56, Rev. 1 Page 4-57, Rev. 2 Page 4-58, Rev. 5 Page 4-59, Rev. 1 Page 4-60, Rev. 2 Page 4-61, Rev. 2 Page 4-62, Rev. 4 Valve Relief Requests:
Page 5-1, Rev. 2 Page 5-2, Rev. O Page 5-3, Rev. 2 Page 5-4, Rev. 1 Page 5-5, Rev. 5 4 of 6 002826 008 Rev. 7
1 Valve Relief Requests: (continued)
Page 5-6, Rev. 5 Page 5-7, Rev. 1 Page 5-8, Rev. O Page 5-9, Rev. O Page 5-10, Rev. O Page 5-11, Rev. 1 Page 5-12, Rev. I 1
Page 5-13, Rev. 1 i
Page 5-14, Rev. 7 I
Page 5-15, Rev. I Page 5-16, Rev. 2 Page 5-17, Rev. 1 Page 5-18, Rev. 1 Page 5-19, Rev. I Page 5-20, Rev. 1 i
Page 5-21, Rev. 0 Page 5-22 Rev. I Page 5-23, Rev. 7 I
l Page 5-24, Rev. 1 Page 5-25, Rev. 1 Page 5-26, Rev. 2 j
Page 5-27, Rev. 4 Page 5-28, Rev. 7 l
i Valve Cold Shutdown Justifications:
Page 6-1, Rev. 0 Page 6-2, Rev. 1 Page 6-3, Rev. 1 Page 6-4, Rev. 1 Page 6-5, Rev. 1 Page 6-6, Rev. 1 i
Page 6-7, Rev. 5 Page 6-8, Rey, 1 i
Page 6-9, Rev. 1 l
Page 6-10, Rev. O Page 6-11, Rev. 1 Page 6-12, Rev. O Page 6-13, Rev. 0 Page 6-14, Rev. 1 Page 6-15, Rev. 1 Page 6-16, Rev. O Page 6-17, Rev. 6 Page 6-18, Rev. I Page 6-19, Rev. 1 Page 6-20, Rev. 0 Page 6-21, Rev. O Page 6-22, Rev. O Page 6-23, Rev. 0 l
Page 6-24, Rev. I Page 6-25, Rev. O Page 6-26, Rev. 1 Page 6-27, Rev. 1 Page 6-28, Rev. 1 i
Page 6-29, Rev. 1 Page 6-30, Rev. I 5 of 6 002826 008 Rev. 7
_, ~.. - -
Valve Cold Shutdown Justifications:
(continued)
Page 6-31, Rev. 7 l
Page 6-32, Rev. 1 Page 6-33, Rev. 2 Page 6-34, Rev. 5 Page 6-35, Rev. 2 i
Page 6-36, Rev. 2 Page 6-37, Rev. 2 Page 6-38, Rev. 2 i
Page 6-39, Rev. 4 i
Page 6-40, Rev. 6 l
l i
i i
-i
't I
i l
1 i
i i
k
)
I 6 of 6 002826 008 Rev. 7 m -
,. - =., -
--y
i Table 3c-1 SAFETY INJECTION PUMPS (1-1204-P6-003,-004)
[
j Quantity 2
Model/ Type Pacific model 3-in. JHF, 11 stages j
Shutoff Desian Runout j
Design Flowrate (gal / min) 0 440 660 l
Max. Differential Head (ft) 3745 2880 1860 i
Min. Differential Head (ft) 3545 2680 1660
)
NPSH Required (ft)
NA 17 25 Design Pressure (psig) 1750 1
Design Temperature (OF) 300 1
1 Driver Westinghouse electric motor (frame 5809 H) hp 450 rpm 3600 Power supply 4160 V/3 phase /60 Hz Project Class 212 Outline Drawing IX6AG02-10, -13, -15 j
Instruction 3ook IX6AG02-016 Location Auxiliary building, level B Rooms R-BIS & R-B19 P&lD IX4DB121 Test Procedure Number 14804-1
)
000669 Rev. 7 i
~
febte 3f 3 feet Peremeter Tebte For Puup 1 1208 P6-003 Test Instrtsment Parameter frequency Utttfred Reference Values Comuments Speed (4)
NA M
M Speed L-_=
it repaired enty on verlebte speed actore Intet Pressure (PI) cuarterly III PI 8892 M
Pt 17 pelg Outlet Pressure (Po)
Guerterly PI-9119 M
Differentlet Pressure (#) Duerterly NA ( #=Po-PI) er(2) i Flourete (e) euerterly FI 10121 er(2) vibretton Asplitude (V) euerterly Note 3 Vr(2)
Proper LterIcent Leve1 euerterty NA M
Observe ItheIcent Ieve1 or Pressure (LL)
Seering Temperature (Tb)
M M
M Relief regaested - See PR-1 Generet Couemente At the discretton of Georgle Power Company Instrisuontation other then that tieted above soy.w used for esecuring inservice teet apsentitles.
Notes (1) Pteosure before pump aterttp and durIng test 3
(2) Reference values detenelned per IWP-3110 (3) Portebte vibretton Instrumente used.
. 1 000665 Rev. 5
--u
--w r
.nn---
w w
we -
-,-.-n-e
.en.---.
-,-n--
w.n..,
febte 3e-5 Test Perameter tobte For Pump 1 1302 P4 003 iest Instrument Perspeter fressency tit tl f red.
Reference Values Commente speed (N)
NA NA NA speed moosurement roupaired only on verlebte speed motore Intet Pressure (PI) euerterly (1)
PI 5129A E
Pt 1 4 pels (IT f t) 7 Outlet Pressure (Po)
Ouerterly Pl*5141A NA Olfferential Pressure (@ ) Guerterly NA (@=Po-PI)
@r(2)
Flourate (e) euerterly FI 15102 er(2)
Vibration Anytitude (V) euerterly Wote 3 Vr(2)
Proper Lerleent Levet euerterly WA NA Ubeerve t erleent level or Pressure (LL)
Seering Temperature (ib) mA NA mA nellef respeested - see PR 1 Generet Censuunts At the discretion of esorgle Power Ceepony Instrumentation other then that listed above may be used for measuring inservice test quantltles.
Notes (1) Meesure before pump stortte and during test (2) Reference vetues determined per IWP-3110 (3) Portobte vibretion Instrumente used.
000664 new. 5
... ~.... - -
~
vtGP Unit ca. 1 008 REV T Velve Test Llet System Chemical and Voltme Controt - Systeen No.1208 Sheet 3 of 4 Rellef Velve Act.
Req. or Velve Ctess P&lD Site Act.
Poeltlen or Tests and Freq.
C. S.
Description ww6er LSl Ers h (coord.) gel iind Im Im !t e lett Sofety tem El H E
LH LI.Just..
and motes LV 0112D 2 212 12408116-2 5 8.00 GA 98 0 C
Al O/C A
Y CS CS CS-14 RUST foolation (E 2)
RR-2 LV 0112E 2 212 1X408116 2 8 8.00 G4 18 0 C
At 0/C A
Y CS CS CS 14 RWST Isolation (0-2)
Re-2 04 021 2 212 1x408114 AC O.75 CK S
C N/A C P
R CVCS Seet sockflush (0 3)
Check - Penetration No. 49 (Note 1)
U4 140 2 212 1N405116-2 C 2.00 CK S
C N/A 0 A
O CCP NintfIow (G-6) 04 147 2 212 1X408116-2 C 2.00 CK S
C W/A 0 A
0 CtP MIntflow (C-6)
U6 032 2 212 1x40s114 AC 3.00 CK S
O N/A O/C A
R R
RR-2,16 CVCS to Regenerative (G 3) e NN - Penetretten No. 50 (Note 1)
U6 124 2 212 1x408116-1 C 4.00 CK 0
N/A C A
R RR-2,28 VCT outlet check (E 4)
U6 142 2 212 1x40s116 2 C 4.00 CK S
C N/A 0/C A
POR RR 2,12 CVCS Pwp Out check (G 6)
U6 149 2 212 IN405116-2 C 4.00 CK S
C N/A O/C A
POR BR 2,12 CVCS P e p Out Check (C-6)
U6 189 2 212 1x408116-2 C 8.00 CK S
C N/A 0 A
PCS RR 2,17 RWST to CVCS Check (E-2)
R U6 436 2 212 1N404122 C
8.00 CK S
C N/A 0 A
PCS WR 2,17 CVCS Charge Pw p (F 8)
R Suction free 000664 4 28
VEGP Unit No. 1 006 REV 7
+
Velve Test List System:
Nucteer Sampling-Liquid - System No. 1212 sheet 1 of 1 Relief Vetw Act.
Req. or Vetw
_Close_
P&l0 Site Act.
Poeltf ort or Teste and Freq.
C. S.
Description Wimber in Ecstia (Coord.)
Cal 110.al Irnt Int Ho m fall lefety Etata El El E
fR L1 Just. _
and Notes q
W 3502 2 212 IN400140 A
0.50 GL A0 0
C C
A Y 0 0
0 R
Not Log Sample Line (E-7)
Penetration No. 24 (Note 1)
W 350T 2 212 1N400140 A
0.50 GL A0 C
C C
A Y 0 0
0 R
Preseuriter Steen Space (G-T)
Penetretten No. 673 (Note 1)
W 3508 2 212 1N4096140 A 0.50 GL Ao C
C C
A Y 0 0
0 R
Presourlaer steen space (G-7)
Penetretton No. 673 (Note 1) i W 3513 2 212 IN408140 A
C C
A Y 0 0
0 R
Not Leg Sample Llne (F-7)
Penetration No. 6TA j
(Note 1) i W 3514 2 212 1N400140 A
0.50 SL Ao C
C C
A Y 0 0
0 R
Not Log Sa gte Line (F 7)
Penetration No. 6TA (Note 1)
W 3548 2 212 IN40e140 A
0.50 GL NO O
Al C
A Y e e
R Reector Not Les semple (D 8)
Line - Penetration No. 24 (Note 1)
W 8220 2 212 IN408140 A
C C
A Y 0 0
0 R
Post-Accident se g ling g
y (0 7)
Penetration No. 24 (Note 1)
.i i
000668 4 30
-. - - - - - -. ~,, -. -.
,,-~ -~ -, - - - - ~
-. -. - - - +. - - + -
VEGP Unit No. 1 006 REV T Velve Test List system:
Mein steen - system 1301 sheet 5 of 5 Relief Velve Act.
Req. or Velve less P&lD Site Act.
Poettien or Tests and Freq.
C. S.
Description Nwber lH EIola (Coorti. )
Ep1 ((nd lyng Iype Norm {311 Safety tasg, 21 [1 E
{}Y M Just __
end Notes-PSV 3015 2
212 1x40e159-2 C 6.00 SR S
C N/A O/C A
T Meln Stees (F-5)
Rollef PsV 3021 2
212 1x6D8159-2 C 6.00 SR S
C N/A 0/C A
T Mein Steen (D 3)
Relief Psv 3022 2
212 1x405159-2 C 6.00 SR S
C M/A O/C A
T Mein Steam (D-4)
Rellef PsV 3023 2
212 1x408159-2 C 6.00 SR s
C N/A O/C A
T Mein Steam (D-4)
Relief Psv 3024 2
212 1x408159 2 C 6.00 SR S
C N/A 0/C A
T Mein Steam (D-5)
Relief PSV 3025 2
212 1x408159-2 C 6.00 SR S
C N/A 0/C A
T Mein steen (D 5)
Relief PsV 3031 2
212 1x408159-2 C 6.00 sa s
C N/A O/C A
T Main steen (8-3)
Relief PSV 3032 2
212 1x408159 2 C 6.00 st 5
C N/A O/C A
T Mein steen (5-4)
Relief Psv 3033 2
212 1x408159-2 C 6.00 SR 5
C N/A O/C A
T Mein steen (8-4)
Relief Psv 3034 2
212 1x405159 2 C 6.00 st S
C N/A O/C A
T Mein steen (B 5)
Relief PSV 3035 2
212 1x608159-2 C 6.00 SR S
C N/A O/C A
T Mein Steen (8 5)
Relief U4 006 3
313 1x405159-2 C 4.00 CK S
C N/A O/C A
POCS RR-23,2 Aunillery Feeduster (G-4)
313 1x409159-2 C 4.00 CK S
O N/A O/C A
POCS RR 23, AFW Pwp Check (E 4)
RM 2
U4 404 3
313 1x405159-2 C 4.00 CK S
O N/A 0
(E-4)
RR 2 Check 00066T 4-39
l RELIEF REQUEST RR-14 SYSTEM: Containment Spray-System No. 1206 VALVE (S):
1206-06-015, 1206-U6-016 CATEGORY: AC j
CLASS: 2 i
FUNCTION: Valve opens to allow flow for containment spray. Valve closes to perform containment isolation function.
i QUARTERLY TEST REQUIREMENT:
Verify forward and reverse flow operability per IWV-3522.
l BASIS FOR RELIEF:
Forward flow operability can be verified only by initiating flow through the valves into the containment structure. The initiation of containment spray into the containment would result in extensive damage to equipment inside containment. The only method available to verify reverse flow closure is valve leak testing during Appendix J, type C, testing at refueling.
ALTERNATE TESTING: One of these valves will be disassembled and manually stroked every other refueling on a j
staggered test basis.
If disassembly reveals that the valve is inoperable, the remaining valve will be disassembled.
In addition, I
reverse flow closure will be verified during Appendix J, type C, testing at refueling.
I GENERIC LETTER 89-04 REVIEW:
This relief request complies with the alternative to full flow testing of check valves as described in Position 2 of NRC Generic Letter 89-04. The provisions for extending the disassembly frequency have been reviewed and extension to every other outage l
1s justified.
i 000675 5-14 Rev. 7 1
e
l t
RELIEF REQUEST RR-23 SYSTEM:
Main Steam - System No. 1301 VALVE (S):
1301-U4-008, 1301-U4-006 l
CATEGORY: C CLASS:
3 FUNCTION: These valves open to allow steam to the AFW pump turbine and i
close to prevent reverse flow.
QUARTERLY TEST REQUIREMENT:
Verify forward flow operability and reverse flow l
t closure per IWV-3522.
I BASIS FOR RELIEF:
Full-stroke exercising these valves during full power operation would require establishing full AFW pump flow into the. steam generators. The introduction of cold water into the hot steam generators during full power i
operation results in a significant thermal shock to the feedwater nozzle. Subjecting the feedwater nozzle to this thermal transient on a quarterly basis decreases the fatigue life of the nozzle and could possibly result in nozzle cracking.
There are no system provisions for utilizing flow or pressure as an indication of reverse flow closure.
ALTERNATE TESTING: These valves are partial-stroke exercised quarterly during the turbine-driven AFW pump test.
These valves will be full-stroke exercised on a cold shutdown frequency by verifying that the AFW pump is delivering the required flow through valves 1302-U4-014, 1302-04-017, 1302-U4-020, 1302-U4-023 and 1302-U4-026 as discussed in CS-19.
Reverse flow closure will be demonstrated by disassembly and manual full-stroke exercising on a staggered test basis at refueling. Valves will be exercised with flow after reassembly.
i l
l GENERIC LETTER 89-04 REVIEW:
This relief request complies with the alternative to full flow testing of check valves as described in Position 2 of NRC Generic Letter 89-04.
000675 5-23 Rev. 7
l RELIEF REQUEST RR-28 SYSTEM:
Chemical and Volume Control - System 1208 VALVE:
1-1208-U6-124 CATEGORY: C CLASS:
2 FUNCTION:
Isolate potential leakage path outside containment QUARTERLY TEST REQUIREMENT:
Verify reverse flow closure per IWV-3522(a)
BASIS FOR RELIEF:
Testing this check valve requires that letdown and Reactor Coolant Pump (RCP) seal water return to the Volume Control Tank (VCT) be isolated, thus, removing the Chemical and Volume Control System (CVCS) from service. The CVCS b required to be in service during normal operation. Therefore, quarterly testing is not possible.
Similarly, performing the test at cold shutdown would require isolating seal water to the RCPs. RCP seal water is typically only isolated during mid-loop operations when the Reactor Coolant System (RCS) level is below the RCP seals thus preventing crud intrusion into the seal packages. There have been numerous undersirable events throughout the industry which have resulted from mid-loop operations, e.g.,
vortexing/ cavitation of the Residual Heat Removal (RHR) pumps due to improper RCS level indication. Mid-loop operation reduces RCS inventory which thereby reduces the plant's margin of safety. Therefore, the safety risks associated with testing this check valve during cold shutdowns are unwarranted.
ALTERNATE TESTING: Reverse flow closure will be verified during each refueling outage by measuring a change in VCT level over time. This test will be performed in conjunction with the Emergency Core Cooling Systems (ECCS) check valve flow tests when the RHR system is providing flow to the suction of the centrifugal charging pumps. This check valve must close to prevent flow diversion to the VCT.
GENERIC LETTER 89-04 Review:
The proposed alternate testing method complies with Position 3 of NRC Generic letter 89-04.
000675 5-28 REY. 7
t COLD SHUTDOWN JUSTIFICATION l
CS-31 l
SYSTEM: Main Steam - System No. 1301 VALVE (S):
1301-U4-404 l
CATEGORY: C CLASS: 3 i
i FUNCTION: This valve opens to allow steam to the AFW pump l
turbine.
l t
i QUARTERLY TEST l
REQUIREMENT:
Verify forward flow operability per IWV-3522.
l l
COLD SHUTDOWN TEST JUSTIFICATION:
This valve is partial-stroke exercised quarterly i
I during the turbine-driven AFW pump test.
l Full-stroke exercising during power operation cannot be performed because the turbine-driven AFW pump is not delivering full flow to the steam t
generators.
I QUARTERLY PARTIAL STROKE TESTING:
Partial-stroke exercising is performed during the -
turbine-driven AFW pump test.
I COLD SHUTDOWN TESTING: Testing of valves 1302-U4-014, 1302-04-017, 1302-U4-020,-1302-04-023, and 1302-U4-026 as discussed in CS-19 verifies that valve 1301-U4-404 l
opens to perform its. safety related function by ensuring that the AFW pump is delivering required flow.
GENERIC LETTER l
89-04 REVIEW:
This cold shutdown justification complies with the full-stroke testing requirements for check valves as described in Position 1 of NRC Generic Letter 89-04.
l t
i 000675 6-31 Rev. 7 l
[
-i i
..-...-..-----.----..]