ML20078C596
| ML20078C596 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 10/26/1994 |
| From: | HOUSTON LIGHTING & POWER CO. |
| To: | |
| Shared Package | |
| ML20078C595 | List: |
| References | |
| PROC-941026, NUDOCS 9411010100 | |
| Download: ML20078C596 (16) | |
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SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION UNIT 1 HOUSTON LIGHTING AND POWER COMPANY PUMP AND VALVE INSERVICE TEST PLAN REVISION 6 SUPPLEMENT 2 Prepared by: /df-2#-f/
/' Date Reviewed by: ; /8'2f'9[
Date' Reviewed by: [
/O-25-W-Date Approved by /c
-- - ,,e 9411010100 DR 941026 ADOCK 05000498 cmras2 PDR
n Unit 1 ?ST Pump List Page 12 of 14 Reactor Makeup Water - RM Rev. 6,-Supp. 2 l -
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Code Grid Measured Test Relief Pump P&ID Coordinates Test Parameters Interval Requests Remarks Identification Class Reactor Makeup 3 F05033 F6 1. Inlet Pressure (Pi) Quarterly -
Pump 1A
- 2. Outlet Pressure (Po) Quarterly -
Quarterly I Reactor Makeup 3 F05033 E6 3. Differential Pressure Water Pump 1B (DP = Po-P*.)
- 4. Flow Rate (Q) Quarterly -
- 5. Vibration Amplitude (V) Quarterly RR5
- 6. Bearing Temperature (Tb) Anually RR8
- 7. Lubricant Level cx Quarterly -
Pressure
- 8. Speed (N) Not -
Applicable 14
_ _ _ _ . v w = ---r - - - =a -- _ ' - - - - - - - - - - - - - me >--m-- - - - - - -- 6---- f - v- e +---m $+~ - - - - - - - w w w-
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- Unit 1 Pump and Valve Rev. 6, Supp. 2l l i
Inservice Test Plan J
RR-6 1
Test Requirement i IWP-4120 requires the full scale range of each instrument to be I I
three times the reference value or less.
Basis for Relief The Centrifugal Charging Pumps (located in the Mechanical Auxiliary Building) and the Residual Heat Removal Pumps (located in the Reactor Containment Building) are in areas of high radiation. For ;
ALARA considerations, the Vibration Monitoring System (located in j the Control Roem) is used to measure vibration amplitude. The vibration monitoring system is an online system which constantly monitors the machine and provides alarms when alert limits are reached. The full scale range of each instrument is fixed &nd the above requirement could be exceeded. Rescaling the instrument to meet the requirements of IWP-4120 for a low reference value would impair the ability of the system to monitor the machine up to the severity limit determined by size, speed and application.
Alternate Testing The Vibration Monitoring System will be used to obtain vibration data for the Residual Heat Removal and Centrifugal Charging Pumps.
The system provides overall readout repeatability within the l accuracy limits specified in Table IWP-4110-1 with indication in l increments of at least 0.2 mils. If the Vibration Monitoring System !
is unavailable, portable vibration indicators will be used as l 1
described in RR-5.
l RR-7 Per NRC Letter ST-AE-HL-93298, RR not required. l 19
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- Unit 1 Pump and Valve Rev. 6, Supp. 2
" Inservice Test Plat ]
RR-13 System Component Cooling Water Components Component Cooling Water Pumps 1A, IB, and 1C Component Function Provide cooling wcter for removal of heat from Engineered Safety Feature Equipment.
Code Requirement IWP-4110 and IWP-4120 for pressure instrumentation accuracy and full-scale range. ,
Basis for Relief The installed suction pressure gauges for the component cooling water pumps have a range of 160 psig and an accuracy of 0.5%. The reference values for suction pressure for these pumpe have been as low as 21 psig. The ASME Code requires each analog instrument to have a full-scale range 3 times the reference value or less and an accuracy of + 2 percent of full-scale. The installed suction pressure gauges for these component cooling water pumps hasbut a has full-scale range greater than 3 times the reference value, an accuracy of + 0.5 percent which is more conservative than the Code. The combination of the range and accuracy of the installed suction pressure gauge yields a reading at least equivalent to the reading achieved from instruments that meet the Code reyairements.
The installed suction pressure gauge meets the intent of the Code requirements and yields an acceptable level of quality and safety for testing.
Alternate Testing i
The permanently installed suction gauges for component cooling water pumps 1A, 1B, and 1C will be used to obtain test measurements for evaluating pump operability.
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Unit 1 Pump and Valve Rev. 6, Supp. 2
. Inservice Test Plan
- t RR-14 System Reactor Makeup Water Components Reactor Makeup Water Pumps 1A and IB.
Component Function Provide makeup water to the Spent Fuel Pool, Component Cooling Water Surge Tank, and CVCS Boron Blending Tee.
Code Requirement IVP-3100 for varying the resistance of the system until either the measured flowrate er differential pressure equals a corresponding reference value.
Basis for Relief The Reactor Makeup Water Pumps utilize a non-isolatable full flow recirculation loop around the pumps with an additional recirculation line back to the Reactor Makeup Water Storage Tank. To perform the test, the pump discharge valve downstream of the recirculation lines is closed creating a closed-loop fixed-resistance recirculation flow path. All pump parameters required by the code except those specifically exempted by other relief requests will be measured.
Alternate Testing Pump testing will be performed using a fixed-resistance flow path.
The measured flowrate and differential pressure will be compared to their respective reference values to determine pump operability.
Deviations from the reference values will be compared to the allowed ,
limits and corrective action taken. (Reference OM-6, Part 5.2 c&d) ;
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Unit 1 Pump and Valve Rev. 6, Supp. 2 Inservice Test Plan RR-15 System Chemical and Volume Control Components e Centrifugal Charging Pumps 1A and IB.
Component Function Provide borated water from the Volume Control Tank or Reactor Makeup Water Storage Tank to the Reactor C0olant System.
Code Aequirement IWP-3100 for varying the resistance of the system until either the measured flowrate or dif f erential pressure equals a corresponding reference value.
Basis for Relief The Centrifugal Charging Pumps utilize a mini-flow recirculation line from the pump discharge to a point upstream of the line leading 1 to the Seal Water Heat Exchanger. To perform the test, the pump discharge valve downstream of the recirculation lines is closed.
Valves in the recirculation line are not designed to perform the function of a throttle valve and therefore are left fully open creating a closed-loop fixed-resistance recirculation flow path.
All Pump parameters required by the code except those specifically exempted by the other relief requests will be measured.
Alternate Testing Pump testing will be performed using a fixed-resistance flow path.
The measured differential pressure will be compared to the allowable ranges given in Table IWP-3100-2 to determine pump operability.
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5 - 5 - 5 - - _ - _ - _
. 0 1 - 1 - 1 - _
T - - _ - _ - _ _
2 S 0 - 0 - 0 _
C 1 - 1 - 1 -
2 p l 1 1 _
7 p - -
C -
u / - - - - J _ J _ J _
fS - -
O _ O _ O _ -
o R - - - - - -
R R R
, R -
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a e E R R R PR M T T T R R _
E R M, T M, T M, T ( T ( T ( T TR L R L L L L SI R, L R, V V EU , V Q Q Q C C C TQ E
R L . I I I I S A A A - -
AO F F F - -
FP M .
O O O O RS O O N N OO N N N N NP O O O A A A T M S S S C H M A
E X K K P B B B C Y C C C T C
E 4 4 4
- Z 8 8 8 1 1 t 1 I
s r S i
L te T C C A
C A
a A A A A A e W C v
l a g C 2 2 2 2 3 V in 2 2 D G D D D D D 3 T l S o o 7 8 9 7 8 9 1
I 1 1 C D 1 1 1 0 0 0 I 0 0 0 5 5
, 1 & 5 5 5 5 t 0 0 0 0
t n P 0 0 F F e F F F F i
n n o 2 2 U p L 2 2 2 2 m C o
C l l l o o o . .
k s s s k k I I I C C C B B B B B B I I O O O I C A B C -
N A B 2 2 2 O 2 2 2 1 1 1 1 1 I 1 , ,
T , ,
C A B C C A B l 1 1 1 N 1 1 1 1 1 U 1 1 l F C C C C C C F E F F F F F C C C C C V C R R R L R R R A o o o V o o o t t t t t t W W W W W W C C H H H C .
C C C C C C
D 9 7 9 9 8 8 8 I 5 3 9 1 1 5 3 0 0 1 1 E 0 0 0 0
- 0 0 V - -
V - - -
L V V C C A O O O C C V M M M C C
I l l l E
- 2 1 2 7 - 7 - 6 -
- - - - - 1 1 -
2 2 2 1 - -
. O - - - - - -
T - - - - 7 - 7 - 6 -
2 S - - - - -
- 1 - 1 - 1 -
, C - - - - - - -
2 . - - - - - -
7 p p l l l f u C - - -
oS / J - J - J -
R O - O - O - - - -
0 , R R R R 1 6 e . T gv N )
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R R R T T T T T T PR M R M, M, E R R M, M, M, M, T T T TR ( T ( T ( T L L L SI L L L R, R, R, R, R, R, EU V V V Q Q Q Q TQ C C C Q Q E
R I I I L .
O O O A A A I S -
- F F F F F F AO - -
FP M .
C C C C C O O O RS C N N N N N OO N N N N NP A A A O O O O O O T S A A A M M M C S S A
E B B B P K K K B B Y C C C B C T C
E 6 6 6 6 6 6 6
- Z 6 6 1 1 1 t I 1 1 1 1 1 1 s r S i
L te T C C C A a A A A A B B B A A e W C l
v a g 2 2 2 2 4 4 4 6 V in C 2 2 G G H G E E E G G G 3 T l S o o 7 8 9 7 8 9 7 8 1
9 1
I 1 1 1 1 C D 1 1 1 0 0 0 0 0 0 I 0 0 0 5 5 5 1
t & 5 5 5 5 5 5 0 0 0 0 0 0 t n P 0 0 0 F F F F F F i e F F F n n U o p L 2 2 2 3 3 3 2 2 2 m C o
C k k k c c c .
e e e l l
l h h h o o C C C o s s s I I I B B B N I I I B B B O t I I I I X X X t t e e T T T T e B C C H H H l l l A I I t t t 1 N C u u u U A B O R R R F 1 I I O O H H H
R X X X R R R E R R V H H H T T T m R R R H H H m m L o o o A A B C r r r V o o o 1 I I f f f t t t W W W R R R W W W C
C C H H H C C C R R R C C C C C C 9 9 9 D 3 1 8 5 4 2 8 I 3 3 1 1 1 2 8 3 4 6 0 5 5 5 0 0 0 E 0 1 1 4 4 4 - - -
V 0 0 0 V V L - - - - V C V V V O O O A C C M M M V C C C F F F
Unit 1 IST valve List Page 15 of 72 , .
Component Cooling Water - CC Rev. 6, Supp. 2 'l NORM. FAIL TEST ST CAT SIZE TYPE ACT POS. POS. REQUIREMENT RR/C' C 0 VALVE ID VALVE FUNCTION CL P&ID GC 2 F05021 H1 A 12 B MO NO FAI Q,R,MT -- 10 ---
MOV-0404 CCW from RCP OB Isolation LT -- --- ---
2 F05021 H1 A 12 B AO NO FC Q,R,MT -- 10 ---
FV-4493 CCW from RCP OB Isolation LT ,
THIS SECTION OF VALVES DELETED A 8 B AO NO FC Q,R,MT -- 4 ---
FV-0864 CHW from RCFC 11C, 12C 03 Isol 2 F05019 C4 LT -- --- ---
A 8 B AO NO FC Q,R,MT -- 4 ---
FV-0862 CHW from RCFC 11A, 12A OB Isol 2 F05017 C4
~ LT -- --- ---
F05018 C4 A 8 B AO NO FC Q,R,MT --
5 ---
FV-0863 CHW from RCFC 11B, 12B OB Isol 2 LT -- --- ---
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Unit 1 IST Valve List Page 16 of 72 Component Cooling Water - CC Rev. 6, Supp. 2 f,
e VALVES DELETED FROM PLAN PAGE INTENTIONALLY LEFT BLANK i
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4 Unit 1 IST Valve List Page 34 of 72 -
Essential Cooling Water - EW Rev. 6, Supp. 2 .I' NORM. FAIL TEST ST VALVE ID VALVE FUNCTION CL P&ID GC CAT SIZE TYPE ACT POS. POS. REQUIREMENT RR/C C O ECW Loop A to Essential EW-0262 CHW Chillers 3 F05038 H6 C 14 CK SA NO --
CV -- --- ---
ECW Loop B to Essential EW-0263 CHW Chillers 3 F05038 F6 C 14 CK SA NO --
CV -- --- ---
ECW Loop C to Essential EW ^264 CHW Chillers 3 F05038 C6 C 14 CK SA NO --
CV -- --- ---
FV-6935 ECW Loop A Drain to ECW Sump 3 F05038 F7 B 4 GT AO NO FC Q,R,MT --
11 ---
FV-6936 ECW Loop B Drain to ECW Sump 3 F05038 C7 B 4 GT AO NO FC Q,R,MT --
12 ---
FV-6937 ECW Loop C Drain to ECW Sump 3 F05038 A7 B 4 GT AO NO FC Q,R,MT --
8 ---
ECW Self-Cleaning Strainer EW-0403 Emergency Backflush Check 3 F5038 G4 C 6 CK SA NC --
CV(DI) RR51 -- ---
1 ECW Self-Cleaning Strainer EW-0404 Emergency Backflush Check 3 F5038 E4 C 6 CK SA NC --
CV(DI) RR51 --- ---
l ECW Self Cleaning Strainr.r EW-0405 Emergency Backflush Chect 3 F5038 B4 C 6 CK SA NC --
CV(DI) RRS1 --- --- l EW-0370A ECW Pump 1A Discharge Vent 3 F5038 G4 C 3 CK SA NO --
CV(DI) RR51 --- ---
EW-0370B ECW Pump 1B Discharge Vent 3 F5038 E4 C 3 CK SA NO --
CV(DI) RR51 --- ---
l EW-0370C ECW Pump IC Discharge Vent 3 F5038 B4 C 3 CK SA NO --
CV(DI) RR51 --- ---
ECW Self Cleaning Strainer EW-0277 Emergency Backflush 3 F5038 G4 B 6 M M NC FAI MS -- --- ---
ECW Self Cleaning Strainer EW-0278 Emergency Backflush 3 F5038 E4 B 6 M M NC FAI MS -- --- ---
ECW Self Cleaning Strainer EW-0279 Emergency Backflush 3 F5038 B4 B 6 M M NC FAI MS -- --- ---
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Unit 1 IST Valve List Rev. 6, Supp. 2 l_
Steam Generator Blowdown - SB NORM. FAIL TEST ST CL P&ID GC CAT SIZE TYPE ACT POS. POS. REQUIREMENT RR/C C l0 VALVE ID VALVE FUNCTION THIS SECTION OF VALVES DELETED NORM. FAIL TEST ST GC CAT SIZE TYPE ACT POS. POS. REQUIREMENT RR/C C O VALVE ID VALVE FUNCTION CL P&ID 4 GT AO NO FC Q,R,MT --
35 ---
FV-4153 SG 1A to Flash Tank Isol. 2 F20001 G5 B 4 GT AO NO FC Q,R,MT --
35 ---
FV-4152 SG 1B to Flash Tank Isol. 2 F20001 G1 B 4 GT AO NO FC Q,R,MT --
35 ---
FV-4151 SG IC to Flash Tank Isol. 2 F20001 C1 B 4 GT AO NO FC Q,R,MT --
35 ---
FV-4150 SG ID to Flash Tank Isol. 2 F20001 C5 B 86
Unit 1 IST Valve List Page 61 of 72 Standby Diesel Generator Starting Air - SD Rev. 6, Supp. 2 , l NORM. FAIL TEST ST VALVE ID VALVE FUNCTION CL P&ID GC CAT SIZE TYPE ACT POS. POS. REQUIREMENT RR/C C O DG 11 Right Bank 4041-FV-5435 Cranking Air Valve 3 00136 F2 B 3 GT AO NC FC Q,MT(NST) RR44 --- ---
DG 11 Left Bank 4041-FV-5434 Cranking Air Valve 3 00136 F3 B 3 GT AO NC FC Q,MT(NST) RR44- --- ---
DG 12 Right Bank 4041-FV-5535 Cranking Air Valve 3 00136 F2 B 3 GT AO NC FC Q,MT(NST) RR44 --- ---
DG 12 Left Bank 4041-FV-5534 Cranking Air Valve 3 00136 F3 B 3 GT AO NC FC Q,MT(NST) RR44 --- ---
DG 13 Right Bank 4041-FV-5635 Cranking Air Valve 3 00136 F2 B 3 GT AO NC FC Q,MT(NST) RR44 --- ---
DG 13 Left Bank 4041-FV-5634 Cranking Air Valve 3 00136 F3 B 3 GT AO NC FC Q,MT(NST) RR44 --- ---
DG 11 Starting Air Receiver l SD0003A No. 11 Inlet Check Valve 3 F22546 8F BC 1 CK SA NO --
Q -- --- ---
DG 11 Starting Air Receiver SD0004A No. 12 Inlet Check Valve 3 F22546 7F BC 1 CK SA NO --
Q -- --- ---
DG 12 Starting Air Receiver SD0003B No. 13 Inlet Check Valve 3 F22546 SF BC 1 CK SA NO --
Q -- --- ---
DG 12 Starting Air Receiver SD0004B No. 14 Inlet Check Valve 3 F22546 4F BC 1 CK SA NO --
Q -- --- ---
DG 13 Starting Air Receiver SD0003C No. 15 Inlet Check Valve 3 F22546 2F BC 1 CK SA NO --
Q -- --- ---
DG 13. Starting Air Receiver Sp0004C No. 16 Inlet Check Valve 3 F22546 1F BC 1 CK SA NO --
Q -- --- ---
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Unit 1 Pump and Valve Rev. 6, Supp. 1 and Supp. 2 l Inservice Test Plan l
RR-50 Per NRC Letter ST-AE-HL-93298, RR not required. ,
RR-51 Test Requirement Exercise check valves for operability at least once every three (3) months.
Basis for Relief Due to plant design, it is not practical to verify by any positive means, either directly or indirectly, the operability of these normally open check valves per the requirements of IWV-3522(a).
The following series check valves are installed in their respective systems with no provisions for independently testing each valve:
CV-0036C and CV-0037C CC-0402 and CC-0763 CC-0327 and CC-0759 CC-0363 and CC-0757 CV-0036B and CV-0037B CC-0321 and CC-0756 CC-0346 and CC-0758 CV-0036D and CV-0037D CC-0540 and CC-0541 CV-0036A and CV-0037A The following valves can not be tested due to the requirement to disable all of the Component Cooling Water system in order to verify valve closure:
CC-0051, CC-0131, AND CC-0191 The following valves are installed in such a way that verifying valve closure is impractical:
RM-0003, RM-0010, and RM-0013 EW-0370A, EW-0370B, and EW-0370C EW-0403, EW-0404, and EW-0405 l 119
- Unit 1 Pump and Valve Rev. 6,-Supp. 1 Inservice Test Plan- and Supp. 2 l P
RR-51 -- CONTINUED Alternate Testing These check valves will be verified operable by disassembling one valve each refueling. outage on a rotating basis for inspection to ensure no degradation has occurred and to provide baseline. data for the non-intrusive check valve testing program. If any check valve ;
selected during any refueling outage shows' signs of unacceptable degradation, all other check valves in the sample group will be disassembled and inspected during the. refueling outage. The number of valves selected for disassembly each refueling outage will ensure that all valves in any sample group are disassembled and inspected within six years. When approved and sufficient baseline data has been obtained, inspections for operability on'these check valves will be performed using non-intrusive methods. Disassembly and inspection will be used when results of the non-intrusive method is '
inconclusive or show signs of degradation.
NOTE: Valve Relief Request 51 was previously used for another request for.
relief but was determined not to be required per NRC letter ST-AE-HL-93298. This note is to provide documentation that Valve Relief Request Number 51 is being reused.
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Unit 1 Pump and Valve Rev. 6, Supp. 2 Inservice Test Plan
- ROJ-1 (Refueling Outage Frequency Justification)
Applicable Valves L
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2R201TCC0058: CCW Supply A Train RCFC ICIV 2R201TCC0013: CCW Supply A Train RHR ICIV ,
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2R201TCC0138: CCW Supply B Train RCFC ICIV 2R201TCC0123: CCW Supply B Train RHR ICIV [
2R201TCC0198: CCW Supply C Train RCFC ICIV 2R201TCC0183: CCW Supply C Train RHR ICIV Test Requirement OMa Part 10 Section 4.3.2 Exercising Frequency. Check valves shall l be exercised nominally every 3 months, except as provided by paragraphs 4.3.2.2, 4.3.2.3, 4.3.2.4, and 4.3.2.5. l Basis for-Deferral (K9 fueling Outage Justification)
The subject check valves are located inside containment. Due to the CCW System design, during plant operations and cold shutdowns i it is not practical to verify by any positive means, either l directly or indirectly, the obturator movement to the closed position per OMa Part 10, 4.3.2.2(a) and 4.3.2.4(a).
Alternate Testing In accordance with OMa Part 10, 4.3.2.2(e) these valves will be exercised each refueling outage in conjunction with the 10CFR50 Appendix J Local Leak Rate Test. Currently STP has not incorporated OMa Part 10 into its Inservice Test Program; however, i past correspondence with NRR (Ref. ST-AE-HL-93298) indicates Code Relief is not required to incorporate a provision of the ASME Section 1989 Edition (including OMa Part 10) which was incorporated i by rulemaking on September 8, 1992.
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