ML20206N478
| ML20206N478 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 04/08/1987 |
| From: | Roesner G, Witt W UNION ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20206N370 | List: |
| References | |
| PROC-870408, NUDOCS 8704200492 | |
| Download: ML20206N478 (21) | |
Text
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J INSERVICE TESTING PROGRAM 4
i CALLAWAY NUCLEAR PLANT i
i ATTACHMENT 2 (21 Pages)
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REVISION 8 APRIL 8, 1987 1
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PREPARED BY: REVIEWED BY:
s h lx w d A S V GARY J.C ROESNER WARREN A. WITT j IST ENGINEER SUPERVISING ENGINEER -
MECHANICAL SYSTEMS 8704200492 870414 3 l PDR ADOCK 0500 P
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Prge 6 Rev, 8 INSERVICE TESTING PROGRAM SY VLV-NUMBER *-P+ID
- CRD I CAT
- SIZE TYP AT POS DIR TST TM MAX *R/R
- NOTES
Page 28 Rev. 8 INSERVICE TESTING PROGRAM SY VLV-NUMBER *-P+ID
- CRD I CAT
- SIZE TYP AT POS DIR TST TM MAX *R/R
- NOTES
- EJ HV 8809B M-02EJ01 C-3 2 B 10" GA M0 O C PIT RR i EJ HV 8811A M-02EJ01 E-7 2 B 14" GA M0 C O/C BT CS 18 EJ-6 6,5 EJ HV 8811A M-02EJ01 E-7 2 B 14" GA M0 C O/C PIT RR EJ HV 8811B M-02EJ01 0-7 2 B 14" GA M0 C 0/C BT CS 18 EJ-6 6,5 EJ HV 8811B M-02EJ01 D-7 2 B 14" GA M0 C O/C PIT RR EJ HV 8840 M-02EJ01 E-3 2 B 10" GA M0 C 0 BT CS 15 6,5 EJ HV 8840 M-02EJ01 E-3 2 B 10" GA M0 C 0 PIT RR EJ V 0084 M-02EJ01 H-5 3 C 1.5" RV SA C 0 RVT RR 2 EJ V 0085 M-02EJ01 E-5 3 C 1.5" RV SA C 0 RVT RR 2 EJ V 0156 M-02EJ01 G-5 3 C .75" RV SA C 0 RVT RR 2 EJ V 0157 M-02EJ01 D-6 3 C .75" RV SA C 0 RVT RR 2 l
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Pags 34 Rev, 8 INSERVICE TESTING PROGRAM i SY VLV-NUMBER *-P+ID
- CRD I CAT
- SIZE TYP AT POS DIR TST TM MAX *R/R
- NOTES
- FC FV 0310 M-02FC02 D-7 3 B 1" GL A0 0 C FST OP
! FC HV 0312 M-02FC02 F-5 3 B 4" GA M0 C 0 BT OP 10 6 I FC HV 0312 M-02FC02 F-5 3 B 4" GA M0 C 0 PIT RR FC LV 0010 M-02FCO2 D-6 3 B 1" GL A0 C C NA 3 8
FC V 0001 M-02FC02 G-6 2 C 4" CK - SA C 0 CVT CS FC-1
) FC V 0001 M-02FC02 G-6 2 C 4" CK SA C O' CVP OP FC-1 i FC V 0001 M-02FC02 C-6.2 C 4" CK SA C C CVT RR FC-1 FC V 0002 M-02FC02 G-6 2 C 4" CK SA C 0 CVT CS FC-1
, FC V 0002 M-02FC02 G-6 2 C 4" CK SA C 0 CVP OP FC-1 i FC V 0002 M-02FC02 G-6 2 C 4" CK SA C C CVT RR FC-1 FC V 0003 M-02FC02 G-6 3 C 4" CK SA C C NA 3
, FC V 0024 M-02FC02 G-6 2 C 4" CK SA C 0 CVT CS FC-1 ,
FC V 0024 M-02FC02 G-6 2 C 4" CK SA C 0 CVP OP FC-1
. FC V 0024 M-02FC02 G-6 2 C 4" CK SA C C CVT RR FC-1 l FC V 0025 M-02FC02 G-6 2 C 4" CK SA C 0 CVT CS FC-1 FC V 0025 M-02FC02 G-6 2- C 4" CK SA C 0 CVP OP FC-1
, FC V 0025 M-02FC02 G-6 2 C 4" CK SA C C CVT RR FC-1 i FC V 0999 M-02FC02 E-3 3 C .5" RV SA C 0 RVT RR 2 J
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Rev. 8 a
RELIEF REQUEST #P02 SYSTEM: Emergency Fuel Oil System
- COMP 0NENT: PJE01A and PJE018 CLASS: 3
- FUNCTION: To provide fuel oil to the standby diesel generators
- TEST REQUIREMENT: Measure vibration, inlet pressure (P1), differential pressure (dp), pump flow (Q) and lubrication levels.
- BASIS FOR RELIEF
- Diesel generator fuel oil transfer pumps are submersible sump pumps. Vibration cannot be measured on the submer-sible pumps. Lubrication levels need not be verified since these pumps are lubricated by the liquid they are submerged in.
ALTERNATE TESTING: Pump differential pressure and flow measurement will be made quarterly.
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1 Rev. 8 )
RELIEF REQUEST #AE 1 VALVE: AE-V120, 121, 122, 123 CATEGORY: C CLASS: 2 FUNCTION: Close to prevent blowdown of steam generators .
following Feedwater Pipe Rupture.
TEST REQUIREMENT: Exercise check valve (full stroke) to the position required to fulfill its function every 3 months.
BASIS FOR RELIEF: Exercising these valves during power operation would require isolation of Feedwater to the steam generator which would result in a severe transient in the steam generator, possibly causing a unit trip. Valve disassembly requires draining the steam generator below the feed header which can only be performed during longer term shutdowns.
ALTERNATE TESTING: A different valve of this group will be disassembled, inspected, and manually full stroked at each refueling, until the entire group has been tested. If the full-stroke capability of the disassembled valve is in question, the remainder of the valves in this group will be disassembled also, inspected, and manually full stroked at the same outage.
Rev. 8 RELIEF REQUEST #AL 2 l,
VALVE: AL-V006, V009, V012, V015 CATEGORY: C CLASS: 3 FUNCTION: Valves open to provide assured source of auxiliary feedwater from the Essential Service Water System. ,
. TEST REQUIREMENT: Exercise check valve (full. stroke) to the position required to fulfill its function every 3 months.
BASIS FOR RELIEF: Full stroking these valves would result in feeding dirty water into the steam generators or to the condensate storage tank as these are the only flow.
path available.
ALTERNATE TESTING: A different valve of this group will be disassembled, inspected, and manually full stroked at each refueling, until the entire group has been tested. If the full-stroke capability of the disassembled valve is in question, the remainder of the. valves in this group will be disassembled also, inspected, and manually full stroked at the same outage.
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Rev. 7 RELIEF REQUEST #AP-1 COLD SHUTDOWN JUSTIFICATION VALVE: -V-0033 CATEGORY: C CLASS: -
FUNCTION: Auxiliary eedwater pump mini-flow check valve to the Condensate Storage Tan . -
TEST REQUIREMENT: Exere se check valve (full stroke) to the position re-quired o fulfill its function every 3 months. ,
BASIS FOR RELIEF: Full stro ng this valve during normal operation would 4
result in ding cold water to two steam generators or taking two o the auxiliary feedwater pumps out of opera-tion. Feeding cold water to the steam generators during operation resul in thermal shocking the piping and results in level fluctuat ns which could result in tripping the plant. Taking two uxiliary feedwater pumps out of opera-tion is a voluntary iolation of Technical Specifications which is prohibited b the NRC.
! ALTERNATE TESTING: Exercise check valve (pa ial stroke) quarterly. Exercise check valve (full stroke) the position required to ful-fill its function at cold sh tdown.
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i Rev. 8 4
d RELIEF REQUEST #BB-1 4
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VALVE: BB-8948A, B, C, D I CATEGORY: A, C CLASS: 1
! FUNCTION: Opens on flow from the cold leg accumulators, safety injection pumps or residual heat removal pumps to provide flow to the reactor coolant system cold legs.
TEST REQUIREMENT: Exercise check valve (full stroke) to the position required to fulfill its function every 3 months.
BASIS FOR RELIEF: These valves cannot be full or part stroke exercised j
during power operation since safety injection pump
- discharge pressure (approximately 1520 psig) cannot 1
overcome reactor coolant system pressure.
Valves cannot be full stroke exercised during cold j shutdown since the residual heat removal pumps can-j not provide accident required f?ow rates through the i valves. Accident required flow rates would require
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injection from the accumulators which cannot be done due to cold overpressurization concerns.
j) l ALTERNATE TESTING: A different valve of this group will be disassembled, inspected, and manually stroked at each refueling, l
until the entire group has been tested. If the full-l stroke capability of the disassembled valve is in question, the remainder of the valves in this group will be disassembled also, inspected, and manually full stroked at the same outage, i ,
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Rev. 8 RELIEF REQUEST #BG-8 COLD SHUTOOWN JUSTIFICATION VALVE: BG-V-0147, BG-V-0165, BG-V-0174 CATEGORY: C CLASS: 3 FUNCTION: Open to provide emergency boration flowpath.
TEST REQUIREMENT: Exercise check valve (full stroke) to the position required to fulfill its function every 3 months.
BASIS FOR RELIEF: Exercising these valves requires substantial boration of the Reactor Coolant System which is unacceptable from an operational view point. This boration would cause unwanted negative reactivity adcition and result in reactor power fluctuations.
ALTERNATE TESTING: Exercise check valves to position required to fulfill the function at cold shutdown.
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Rev. E 4
RELIEF REQUEST #EJ-6 COLD SHUTDOWN JUSTIFICATION l .
1 j VALVE: EJ-HV-8811A, B i
i CATEGORY: B t i CLASS: 2 l FUNCTION: Provides containment isolation. Opens to provide flow path from t
! i i TEST REQUIREMENT: Exercise valve to the position required to fulfill its function and stroke time every 3 months.
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j BASIS FOR RELIEF: Opening valve during operation would drain the RHR suction '
! header into the containment sump rendering the RHR pumps inoperable. Current procedures isolate and drain the suction header prior to stroking. This requires significant time.
.l An alternative is to allow the water to go into the sumps i
! which then would require iemoval to decrease containment
! humidity. Another concern is the additional risk of not i getting the system fully vented. Requirements currently
! exist requiring ECCS systems be vented monthly due to pro-I blems encountered. The additional risks encountered and 1 amount of time to perform testing do not justify the small j amount of additional assurance gained by the testing.
i ALTERNATE TESTING: Valves will be exercised and stroke timed during cold
! shutdown when the proper precautions may be taken without
! impacting operation.
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REV. 8 i
i 4 RELIEF REQUEST i/EN-1 j
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VALVE: EN-V002, 008 CATEGORY: C CLASS: 2 FUNCTIO!i: Valves open to provide flow from the Containment Sump to the
. Containment Spray Pumps.
i TEST REQUIREMENT: Exercise check valve (full stroke) to the position 2 required to fulfill its function every 3 months.
1 l BASIS FOR RELIEF: These valves cannot be full stroke exercised since j the only flowpath is from the Containment Sump.
j Flow from the Containment Sump would require filling j the sump with water and providing it with a constant j supply of clean water. This would be very difficult f
to perform. Also, full flow would require spraying i containment which would result in damage to lagging,
- non EQ electrical equipment, etc.
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! ALTERNATE TESTING: A different valve of this group will be disassembled, i inspected, and manually full stroked at each refueling, l until the entire group has been tested. If the full-g stroke capability of the disassembled valve is in
! question, the remainder of the valves in this group
! will be disassembled also, inspected, and manually 1 full stroked at the-same outage.
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REV. 8 RELIEF REQUEST #EN-2 -
VALVE: EN-V003, 004, 009, 010 CATEGORY: C CLASS: 2 FUNCTION: Valves open to provide flow from the refueling water storage tank to the spray headers.
TEST REQUIREMENT: Exercise check valve (full stroke) to the position required to fulfill its function every 3 months.
BASIS FOR RELIEF: These valves cannot be full stroke exercised since the only full flow flowpath is to the spray headers which would result in spraying containment resulting in damage to lagging, non EQ electrical equipment, etc.
ALTERNATE TESTING: Exercise check valve (partial stroke) every 3 months.
A different valve of this group will be disassembled, inspected, and manually full stroked at each refueling, until the entire group has been tested. If the full-stroke capability of the disassembled valve is in question, the remainder of the valves in this group will be disassembled, also inspected, and manually full stroked at the same outage.
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REV. 8 RELIEF REQUEST #EN-3 VALVE: V013, 017 CATEGORY: C CLASS: 2 FUNCTION: Opens on flow from the containment spray pump to the contain-ment spray headers.
TEST REQUIREMENT: Exercise check valve (full stroke) to the position required to fulfill its function every 3 months.
BASIS FOR RELIEF: To full or partial stroke these valves flow from the containment spray pump would have to be initiated.
This would result in spraying water through the spray nozzles into containment resulting in damage to lag-ging, non EQ electrical equipment, etc.
ALTERNATE TESTING: A different valve of this group will be disassembled, inspected and manually full stroked at each refueling, until the entire group has been tested. If the full-stroke capability of the disassembled valve is in question, the remainder of the valves in this group will be disassembled, also inspected, and manual:1 full stroked at the same outage.
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Rev. 8
, RELIEF REQUEST #EN-4 COLD SHUTDOWN JUSTIFICATION i
VALVE: EN-HV-1, EN-HV-7 CATEGORY: B CLASS: 2 j FUNCTION: Provides containment isolation. Opens to provide flow path
!- from containment recirculation sump to suction of the Contain-
- ment Spray Pumps.
TEST REQUIREMENT: Exercise valve to the position required to fulfill its function and stroke time every 3 months.
I BASIS FOR RELIEF: Opening valve during operation would run the risk of
- draining the Containment Spray Pumps suction headers
' into the containment sump which could cause severe dam-age to the pumps and render them inoperable. Refueling s Water Storage Tank must be isolated to prevent flooding i containment should the single check valve not hold when ,
these valves are stroked open. Current procedures iso-late and drain the suction header prior to stroking.
This requires significant time. An alternative is to allow the water to go into the sumps which then would require removal to decrease containment humidity.
1 Another concern is the additional risk of not getting the system fully vented. Requirements cur:ently exist requiring ECCS systems be vented monthly due to pro-blems which were encountered. The additional risks en-countered and amount of time to perform testing do not justify the small amount of additional assurance gained
- by the testing.
ALTERNATE TESTING: Valves will be exercised and stroke timed during cold shutdown when the proper precautions may be taken without impacting operation.
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i REV. 8 i
RELIEF REQUEST #EP-2 ,
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VALVE: EP-8956A, B, C, D CATEGORY: A, C CLASS: 1 FUNCTION: Opens on flow from the cold leg accumulators to provide flow to the reactor coolant system cold legs.
TEST REQUIREMENT: Exercise check valve (full stroke) to. the position j required to fulfill its function every 3 months. -
BASIS FOR RELIEF: These valves cannot be full or part stroke exercised i during power operation since cold leg accumulator
- pressure (approximately 540 psig) cannot overcome
! reactor coolant system pressure. During cold shut- t
!' down exercising these valves could result in a low temperature overpressurization of the reactor "
j coolant system.
l ALTERNATE TESTING: A different valve of this group will be disassembled,
! inspected, and manually full stroked at each refueling, j until the entire group has been tested. If the full
- stroke capability of the disassembled valve is in question, the remainder of the valves in this group will be disassembled, also inspected, and manually full stroked at the same outage.
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! Rev. 8 i RELIEF REQUEST #EP-4 I COLD SHUT 00WN JUSTIFICATION
! VALVE: EP-HV-8950A, B, C, D, E, F 4 CATEGORY: B t
CLASS: 2
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! FUNCTION: Valves are provided to depressurize the accumulator tanks during emergency cold shutdown conditions. .
TEST REQUIREMENT: Exercise valve to the position required to fulfill its function every 3 months.
BASIS FOR RELIEF: Opening valve during operation would render an accumu-lator inoperable. Technical Specifications only allow i
1 one hour in this condition prior to commencing unit shutdown. This may not be adequate time to test and restore an accumulator. Additionally, if one valve were to fail, insufficient time is allowed for repair
! and therefore the plant would be required to shut down.
ALTERNATE TESTING: Valves will be exercised and stroke timed at cold shutdown. ,
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1 1 RELIEF REQUEST #FC-1 t
VALVE: FC-V-0001, FC-V-0002, FC-V-0024, FC-V-0025 CATEGORY: C J
4 3 CLASS:
) FUNCTION: Valves open to provide steam flow to the turbine driven auxiliary
- feedwater pump. Valves close to provide redundant steam line 1 separation.
I TEST REQUIREMENT: Exercisecheckvalves(fullstrokeopenandclosed)
< to the position required to fulfill its function every 3 months.
l BASIS FOR RELIEF: Valves cannot be full strcke opened during power opera-
< tion since this would require full flow of cold water from the turbine driven auxiliary feedwater pump to the steam
- generators. This is undesirable since this would unneces-
! sarily thermal shock steam generator feedwater nozzles.
2 These valves cannot be full or partial stroke tested closed since there are no lines coming off between the two valves on a line to allow for pressurization and depressurization, l- ALTERNATE TESTING: Check valves will be partial stroke tested open quarterly.
, Valves will be full stroke exercised open at cold shut-1 down frequency. Valves will be tested for closure capa-I bility by dissassembling, inspecting, and manually full stroking a different valve of this group at each re-fueling.
! A different valve of this group will be disassembled, i inspected, and manually full stroked at each refueling, until the entire group has been tested. If the full-stroke capability of the disassembled valve is in ,
question, the remainder of the valves in this group i
will be disassembled also, inspected, and manually l full stroked at the same outage.
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Rev. 8 RELIEF REPORT #KA-1 COLD SHUTOOWN JUSTIFICATION ,
l VALVE: KA-FV-29 CATEGORY: A l
4 CLASS: 2 FUNCTION: Valve closes to provide containment isolation.
TEST REQUIREMENT: Exercise valve (full stroke) to the position required to fulfill its function and stroke time every 3 months.
BASIS FOR RELIEF: Failure of this valve in the closed direction or stroking this valve during normal plant operation would interrupt the instrument air supply to valves and equipment necessary for system control and operation (i.e. loss of the normal letdown path and loss of pressurizer spray). These losses would put the plant in an off-normal situation and possibly cause a reactor trip.
ALTERNATE TESTING: Valve will be exercised (full stroke) to the position required to fulfill its function and stroke time tested during cold shutdown.
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i Rev. 8 RELIEF REQUEST 4KJ-2 COLD SHUTDOWN JUSTIFICATION 4
i VALVE: KJ-V-0711A&B, 0712A&B CATEGORY: C CLASS: 3 FUNCTION: Check valves preventing backflow from the emergency diesel gen-erator air starting tanks.
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TEST REQUIREMENT: Exercise check valve (full stroke) to the position re-quired to fulfill its function and stroke time every 3 months.
BASIS FOR RELIEF: Testing of these valves would require that the remaining diesel be tested every 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> causing unnecessary wear on the system. Difficulty would also occur in completing
- the test within the 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> action statement period per Technical Specifications. To test the two check valves for one diesel would require the following sequence of events:
- Isolate and depressurize tank A.
- Perform test on tank B check valve.
- Start compressors and repressurize tank A.
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- Isolate and depressurize tank B.
- Perform test on tank A check valve, j
- Start compressors and repressurize tank B.
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- Run operability test of affected diesel.
ALTERNATE TESTING: Valves will be ex?rcised (full stroke) to the position re-quired to fulfill its function during cold shutdown.
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