ML20033A465
| ML20033A465 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 11/23/1981 |
| From: | LONG ISLAND LIGHTING CO. |
| To: | |
| Shared Package | |
| ML20033A463 | List: |
| References | |
| TASK-1.C.8, TASK-TM 29.023.02-DRFT, NUDOCS 8111250468 | |
| Download: ML20033A465 (9) | |
Text
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Subnitted:
SP liunber 29.023.02 Approved:
Revision F
(Plant Manager)
Effective Date C00LD0'i';
EMERGE::CY PPOCEDURE 1.0 PUP 20SE The purpose of this procedure is to depressurize and cooldown the RPV to cold shutdown conditions while maintaining PSV water level within a satisfactory ra nge.
2.0 ENTRY CO:!DITIO::S This procedure is entered frca SP 23.023.01 (Level Control) after the RPV water level has been stabilized above the top of active fuel (TAF).
3.0 OPERATOR ACTIONS CAUTION
.IF a high drywell pressure ECCS initiation signal occurs 0R Icxists while depressurizing
- THEN prevent injection from those CS and LPCI pumps not required to assure adequate core cooling prior to reaching their maxinun injectica pressures.
i'tillEN the high drywell pressure ECCS initiation signal clears, lTHEN restore CS and LPCI to AUTO:tATIC/STA';DBY node.
I h4 SP 29.023.02 Rev. F f" / Y U J O, C
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Page 1 of 9 8111250468 811123 ft i, PDR ADOCK 05000322 E
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CAUTION i
DO ::0T secure or place an ECCS in IIA"UAL code ~
l l
UNLESS
!jaisoperation in AUTOMATIC code is confirmed by at least two independent findications l
0_R
. adequate core cooling is assured by at least two independent indications.
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I
- Il[ an ECCS is placed in lIX:UAL coda, l
h
,TIIEN it will not initiate automatically.
- bke' frequent checks of the initiating lor controlling parameter.
dTdEN canual operation is no longer required, i
TIIEN restore the systen to AUTO:IATIC/ STAND 3Y cone if possible.
3.1 Maintain RPV water level 3.1 NOTE between +6" on Fuel Zone Indi-The choice of using the cator LI-007 and 54.5" on following systens vary uith narrow range indicator LI-004 plant conditions.
It is with one or nore of the follow-preferred that the nininua in; systens:
number of systeos be used to accomplish water level restoration.
3.1.1 Condensate /Feedwater 3.1.1 Press range 1115 to O psig (Ref.
SP 23.109.01) 3.1.2 CRD 3.1.2 Press range 1115 to O psig (Ref.
SP 23.106.01) l CAUTION l
i.
jDonot throttle llPCI or RCIC systecs below the cdnicua speed of 2250 RPM.
t 3.1.3 RCIC 3.1.3 Press range 1115 to 57 psig (Ref.
SP 23.119.01)
SP 29.023.02 Rev. F
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Page 2 of 9 s
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2, c' m
3.1.41 HPCI-3.1.4 ' Press-Range 1115 to:
110 psigf(Ref.'
T' JSP:23.202.01)~
3.1.5 C.S.-
~ 3.1.5 ' Press. Range --333' to O ~
.psig (Ref.
SP 23.203 91)-
3.1.6 LPCI:
.3.1.6.LPress' Range 238 to.0 psig (Ref.-
SP 23.204.91) 3.2' IF' signals'of high' suppression
- pool water level (26'11").
SE-
,Lov~ condensate storage tank' water level, (3'4") occur, THEN confirm automatic ttansfer of/or' manually: transfer HPCI:
and RCIC suction from the condensate tank-to the:
suppression pool.
3.3
. IF: RPV water -level cannot be 3.3 NOTE l
~Elintained above TAF
.TAF.='+6" as read on; fuel' zone instrumentation LI-DQ7.
i n
4 cannot be determined, THEN' proceed to SP 29.023.04 r
-(Level' Restoration).
3.4
))[ SRV's are cycling,
. THEN anen one SRV and reduce RPV,
ssure to between 800 and 96J psig.
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i k-l
~
i SP 29.023.02 Rev. F l
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CAUTIO::
Cooldoen rates greater than If)*F/hr nay be required to conserve R?V water inventory, protect prin try containnent integrity, or linit radioactive release to the environment.
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CAUILON i
Do not depressurice the RPV below 110 psig unless notor driven punps sufficient to naintain RPV water level are running and available for injection.
3.5 IF_ the niin condenser is available, THEN depressurize the RPV and maintain cooldown rate below 10)*F/hr using one or more of the following systens:
3.5.1 Main Turbine Bypass 3.5.1 Refer to SP 22.005.01 Valves (Shutdown to Cold Shutdown) 3.5.2 Pressure reduction may be augnented by use of one or core of the following systens.
(A) RCIC (A) Refer to SP 23.119.01 (Renoval Core Isolation Cooling (RCIC Systen)
(B) HPCI (B) Refer to SP 23.202.01 (Iligh Pressure Coolant Injection)
(C) RNCU (Blowdown Mode)
(C) Refer to SP 23.709.01 (Reactor Water Cleanup)
(D) Stean Jet Air Ejectors (D) Refer to SP 23.710.01 (Condenser Off gas Renoval)
SP 29.023.02 Rev. F
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(E) RFPTS (E) Refer to.
SP123.109.01-(Feedwate r _ System)
(F) Stean ' Scal Evaporator' (F);ReferLto SP 23.124.01
~(Steam' Sealing)-
(G) Main Condenser
-(G) Refer' to Deaerating Steam.
SP'23.103.01 (Condensate (11) RWCU (Recirculation.
-(H)LRefer to Mode)
.SP.23.709.01-(Reactor Water
' Cleanup System)-
. (I)- Main Stean Line Drains (I) Refer to SP-23.116 01 (Main:and Auxilia ry Steaa) -
3.6 IF,the main condenser is not available TilEN depressurize the ' RPV and -
maintain cooldown rate below 100*F/hr using one or more of the following systems.
3.5.1 RCIC-3.6.1 Refer to SP 23.119.01 (Renoval Core Isolation Cooling (RCIC) Systen)-
3.6.2 HPCI 3.6.2 Referuto SP 23.202.01' (High Pressure Coolant Injection).
L 3.6.3 RWCU (Recirculation 3.6.3 Refer to SP 23.709.01
[
Mode)
System)
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l.
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[
t SP 29.023.02 Rev. F
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3.6.4 Pressure reduction nay
-be augnented by use-of one or care of the following systems.
CAUTION Open SRVs in the following sequence if possible.
Ij[the continuous SRV pneucatic supply is OR 1
f becoces unavailable l
THEN depressurize with sustained SRV opening.
f i
(A)
SRV's RV-093A RV-0938 RV-093C RV-093D RV-093E RV-093F RV-093G RV-093tl RV-093J RV-093K RV-093L (B)
RWCU (Slowdown Mode)
(B)
Refer to SP 23.709.01 (Reactor Uater Cicanup) 3.7 RHEN the RHR shutdown cooling 3.7 RHR shutdown cooling interlocks cicar, interlocks clear at 135 psig.
Ref. SP 23.121.01 TIIEN initiate the shutdown (Residual llent Renoval cooling node of RilR.
(RilR) System).
SP 29.023.02 Rev. F
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3.8 I the P.ilR shutdown cooling node cannot be establish 2d and further cooldown is required, Tili'! continue to cooldown with the systens listed in step 3.5
_OR step 3.6 as applicable.
3.9 Ij; RPV cooldown is required but cannot be acconplished, THEN perfora alternate shutdown cooling as follows:
3.9.1 Initir.te Suppression Pool 3.9.1 Ref. SP 23.121.01 Ccol ng (Residual Heat Renoval (RHR) Systen)
AND Control Suppression Pool Temperature to maintain RPV water tenperature above 70*F.
3.9.2 Close the following valves.
(A) RPV head vents 1B21-MOV-083 IB21-MOV-084 IB21-MOV-085 (B) All MSIV's 1B21 A0V-031A IB21 A0V-03l3 IB21 A0V-081C 1B21 A0V-081D 1B21 A0V-082A 1821 A0V-0323 IB21 A0V-082C IB21 A0V-032h i
s SP 2'9.023.02 Re;. F
(C) MSL Drai.
ines 1821 ti')V-d3S 1321 A0V-JSS 1321 MOV-733 1B21 A0V-039 (D) RER Stcan Condensing Valve IE11 MOV-049 3.9.3 Position SRV's so that only one SRV is open.
3.9.4 Slowly raise RPV water level to establish a flow path through the open SRV back to the suppression pool.
3.9.5 Start one CS or LPCI 3.9.5
- OTE pump with suction It is preferred to use from the suppression one CS pump for the pool.
cooldown.
3.9.6 Slowly increase CS or LPGI injection into the RPV to the caxicum.
3.9.7 Maintain RPV pressure between 100 psig and 184 psig.
3.9.7.1
))[ RPV pressure does not stabilize above 100 psig THEN start an additional Pump 3.9.7.2
)); RPV pressure does not stabi-lize below 184 psig.
THEN open an additional SRV SP 29.023.02 Rev. F
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Page 3 of 9 s
3.10 IF the cooldown rate exceeds 100*F/hr THEN reduce CS or LPCI injection into the RPV until the cooldown rate decreases below 100*F/hr 2R RPV pressure decreases to 100 psig.
3.11 Continue with plant shutdown in accordance with SP 22.005.01 (Shutdown to Cold Shutdown)
4.0 REFERENCES
4.1 SP 29.023.01 Level Control 4.2 SP 29.023.04 Level Restoration 4.3 SP 22.005.01 Shutdown to Cold Shutdown 4.4 SP 23.119.01 Reactor Core Isolation Cooling (RCIC) System 4.5 SP 23.202.01 High Pressure Coo 1. ant Injection 4.6 SP 23.121.01 Residual Heat Removal (RHR) Systen 4.7 SP 23.701.01 Condenser Of f Cas Removal 4.8 SP 23.124.01 Steam Scaling 4.9 SP 23.103.01 Condensate 4.10 SP 23.109.01 Feedwater System 4.11 SP 23.709.01 Reactor Water Cleanup System 4.12 SP 23.203.01 Core Spray System 4.13 SP 23.204.01 Low Pressure Coolant Injection SP 29.023.02 Rev. F
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