ML20035A284
| ML20035A284 | |
| Person / Time | |
|---|---|
| Site: | 05200001 |
| Issue date: | 03/16/1993 |
| From: | Fox J GENERAL ELECTRIC CO. |
| To: | Poslusny C Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 9303250088 | |
| Download: ML20035A284 (6) | |
Text
F l
j GENuclear Energy March 16,1993 Docket No. STN 52-001 Chet Posiusny, Senior Project Manager Standardization Project Directorate Associate Directorate for Advanced Reactors and License Renewal Office of the Nucicar Reactor Regulation
Subject:
Submittal Supporting Accelerated AllWR Review Schedule - Subsection 3.9.6 Modifications and Check Valve ITAAC
Dear Chet:
Enclosed is a correction to Subsection 3.9.6.1 and the modifications to the RHR valves F014,015 and 016 that we discussed on the phone on March 16,1993. Alsc, enclosed is our proposed ITAAC for check valves. We feelit is essential to follow as closely as possible to the already agreed upon template for motor operated valves.
Please provide a copy of this transmittal to Renee Li.
Sincerely, u
W Jack Fox Advanced Reactor Programs cc: Norman Fletcher (DOE) llernie Genetti (GE) 31 W 59 9303250088 930316 PDR ADOCK 05200001 A
ABM M10%E Standard Plant PEV R design and qualification requirements and will valves that fail to exhibit the required perfor-provide acceptance criteria for these require-nance can be disassembled for evaluation. The ments. For each size, type, and model the COL Code provides criteria limits for the test holder will perform testing encompassing design parameters identified in Table 3.9-8. A program conditions that demonstrate acceptable flow rate will be developed by the COL applicant to and corresponding head, bearing vibration levels.
establish the frequency and the extent of and pump internals wear rates for the operating disassembly and inspection based on suspected time specified for each system mode of pump degradation of all safety-related pump @nclud-gg operation, From triese tests the COL holder will ing the basis for the frequency and the extent g,c~
also develop baseline (reference) hydraulic and of each disassembly. The program may be revised vibration data for evaluating the acceptability throughout the plant life to minimize dis-of the pump after installation. The COL holder assembly based on past dis s embly experience.
will ensure that the pump specified for each (See Subsection 3.9.7.3 or COL license
/
application is not susceptible to inadequate information requirements.)
minimum flow rate and inadequate thrust bearing capacityqith respect to minimum flow pump 3.9D.2 Motor Operited Valves operationg Z WSEP T' 3,9,6.1 For each motor operated valve assembly (MOV)
The ABWR safety-re ated pumps and piping with active safety-related function, the design configurations accommodate inservice testing at a basis and required operating conditions flow rate at least as large as the maximum design (including testing) under which the MOV will be flow for the pump application. The safety-re i d f
ill be established.
related pumps are provided with instrumentation (1)qu re, to per orm wDM/90 ar to verify that the net positive suction head The COL holder will establish the following (NPSII) is greater than or equal to the NPSH design and qualification requirements and will required during all modes cf pump operation.
pr ovid e acce pt a nce crit e ria fc,r t he se These pumps can be disassembled for evaluation requirements. By testing each size, type, and when Part 6 testing results in a deviation which model the COL holder will determine the torque falls within the ' required action range." The and thrust (as applicable to the type of MOV)
Code provides criteria limits for the test requirements to operate the MOV and will ensure parameters identified in Table 3.9-8. A program the adequacy of the torque and thrust that the will be developed by the COL applicant to motor operator can deliver under design (design establish the frequency and the extent of basis and required operating) conditions. The disassembly and inspection based on suspected COL holder will also test each size, type and degradation of all safety related pumps, model under a range of differential pressure and including the basis for the frequency and the flow conditions up to the design conditions.
extent of each disassembly. The program may be These design conditions include fluid flow, revised throughout the plant life to minimize differential pressure (including pipe break),
disassembly based on past disassembly system pressure, fluid temperature, ambient experience. (See Subsection 3.9.7.3(1) for COL temperature, minimum voltage, and minimum and license information requireme nts.)
maximum stroke time requirements.4 rom thisygyp7 F
testing the COL holder will demonstrate that the J. y.,. E u l 3.9.6.2 Testing of 5eaety-Related Vahes results of testing under in situ or installed conditions can be used to ensure the capability of the MOV to operate under design conditions.
.194.2.1 Check Vahes The COL holder will ensure that the structural M
/
All ABWR safety-related piping systems capability limits of the individual parts of the 1
' incorporate provisions for testing to demonstrate MOV will not be exceeded under design 3
the operability of the check valves under design conditions. Additional guidelines to justify l conditions. Inservice testing will incorporate prototype qualification testing are contained in.
the use of advance non-intrusive techniques to Generic Letter 89-10, Supplement 1. Questions 22 '
periodically assess degradation and the and 24 through 28. The COL holder will ensure that the valve specified for each application is >
performance characteristics of the check valves.
The Part 10 tests will be performed, and check not susceptible to pressure locking and thermall gn z.nl (Je sizing of each minimum recirculation flow path is '
cvaluated to assure that its use under all minimum recirculation flew paths can also be analyzed conditions will not result in periodically measured to verify that flow is in degradation of the pump. The flow rate through accordance with the design specification.
zu -
.A-ABWR mame Standard Plant
% n.
Table 3.9-8 (Continued)
IN-SERVICE TESTING SAFET%REIATED PUMPS AND VALVES j
E11 Residual Heat Removal System Valves (Continued)
]
i Safety Code Valve Test Test SSAR i
Class Cat. Func. Para Freq. Fig.
No. Qty Description (h)(1)
(a)
(c)
(d)
(c)
(f)
(g)
I g F008 3 Suppression pool return line MOV 2
A I,A 1,P RO 5.4-10(3,4,6) 7 S
3mo
)
F009 3 Shutdown Cooling suct. line maint. viv 1
B P
El 5.4-10(2) l F010 3 Shutdown Cooling suct. line inb. iso. viv (b6) 1 A
I,A L.,P RO 5.4-10(2)
{
S U
i li F011 3 Shutdown Cooling suct line outb iso. viv (h6) 1 A
I,A I.,P RO 5.4-10(2)
)
S CS
) F012 3 Shutdown Cooling suction line adm. viv 2
B A
P 2 yrs - 5.4-10(3,4,6)
S 3mo P013 3 Heat exchanger bypass flow control vi/
2 B
A P
2 yrs 5.4-10(3,4,6)
I S
3mo,5.4-10(5,7) F 2ya
) F014 2 Fuel Pool Cooling supply line inb MOV h8) 2 B
A
,S RO 5 3 pre j
Fuel Pool Cooling supply line outb MOV h8) 2 B
A P,S RO 5.4-10(5,7) pp
) F015 2 F016 2 Gate viv-line from Fuel Fool Cig (FPC) (h8 2
B A
S R
5.4-10(2) f 3 y,g F017 2 Drywell sprayline inboard valve 2
A I.A LP RO. 5.4-10(5,7) g g-I S-3 mo F018 2 Drywell sprayline outboard valve 2
'j S
3mo F019 2 Wetwellsprayline MOV 2
)
S
' 3 mo F020 3 RHR pump min flow bypass line check viv 2
C A
S 3mo 5.4-10(3,4,6)
/ F021 3 RHR pump min flow bypassline MOV 2
'A I,A L,P 2 yrs 5.4-10(3,4,6)
S 3mo
) F022 3 Discharge line fill pump suction line valve 2
B P
El 5.4-10(3,4,6)
F023 3 Fill pump discharge line check valve 2
C A
-S 3 mo 5.4-10(3,4,6) t
(
F024 3 Fill pump discharge line stop check valve 2
C A
S 3 mo 5.4-10(3,4,6)
F025 3 I'dl pump minimum flow line globe valve 2
B P
El 5.4-10(3,4,6) '
f F026 3 RHR pump suction to High Conductivity 2
B P
El' 5.4-10(3,4,6)
)
Waste (HCW)
F027 3 Bypass line around the check valve 2
B P
El 5.4-10(3,4,6)
MPL E11 F002 F028 3 Heat exchanger outlet line relief valve 2
C A
R 5 yrs 5.4-10(3,4,6) i F029 3 Inboard reactor well drain line valve 2
B P
El 5.4-10(3,4,6)
F030 3 Drain to radwaste valve 2
B P
El 5.4-10(3,4,6)
F031 3 Outb reactor well drain line valve (to SP) 2 A
[
l F032 3 Shutoff valve -line from MUWC 2
B_
P El 5.4-10(3,4,6)
'i F033 3 Check valvein the line from MUWC 2
C A
S 3 mo 5.4-10(3,4,6) g F034 1 RPV injection line vent / test line inbd viv 2
B P
El 5.4-10(3)~
I'134 2 RPV injection line vent / test line inbd viv 1
B P
El-5.4-10(5,7).
F036 1 Press equal valve around chk viv E11 F006 2
A P
El 5.4-10(3)
F036 2 Press equal valve around chk viv E11 F006 1
A P
El 5.4-10(5,7) j t
3.9-58.9.
l Amendmen,[
1 t
e ABWR uss,ooms Standard Plant y
Table 3.9-8 (Continued)
IN-SERVICE TESTING SAFETY-RELATED PUMPS AND VALVES NOTES (Continued):
(g)
Piping and instrument symbols and abbresiations are defined in Figure 1.7-1. Figure page numbers are shown in parenthesis ().
(h)
Reasons for code defined testing exceptions (Part 10, Paragraphs 4.2.1.2 and 4.3.2.2).
p (hl) Inaccessible inerted containment and/or steam tunnel radiation during power operations.
(h2) Avoids valve damage and impacts on power operations.
(h3) Avoids impacts on power operations.
(b4) A temporary crosstie is necessary to carry the ongoing cooling loads. A permanent crosstic would (
violate divisional separation.
(h5) Avoids cold / hot water injection to RPV during power operatiom.
(h6) Maintain pressure isolation during normal operation.
(h7) Inventory available only during refueling outage.
P</dd (h8) esting at power willimpact operation because the valves do not automatically isolate with p OCA sien_h-7 i
(h9) Test connection size is insufficient for full flow test during operation. Therefore, test part stroke /
during plant operation and full stroke during refueting outage. A test connection size which would be sufficient for full flow tests would pressurize the secondary containment beyond specified k timits, thus affecting power operation.
h (i)
Summaryjustification for code exemption request (Part 6, Paragraph 5.2, or Part 10, Paragraph 6.2).
')
(il) The piping is maintained full by a small fraction of the pump's flow capacity. These pumps may )
be a constant speed centrifugal type with a ecoling by-pass loop. Normal operation will be near minimum flow in the flat or constant region of the pressure / flow performance curve. Therefore, j
a flow measurement would not be useful. The pumps will be designed and analyzed to withstand g
low flow operation without significant degradation.
Amendmen 3.9-58.31.2
- o w -
ABWR orign Documsnt j
?
c check.
09iotoTOperateg Valve Design Description eheck The results of tests of active safety relatedanoforym~D$0ves identified in the figure or design descriptions demonstrate that the cV.+ 6TOVFhre qualified to perform their safety functions under certified design differential pressure, system pressure, fluid
)
gj tem _perature,, ambient temperature /ninimum voltag l
(Tninimum and/or maximum stroke times.
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