ML20087B279

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Rev 13 to Station Procedure EOP 2532, Loss of Primary Coolant
ML20087B279
Person / Time
Site: Millstone Dominion icon.png
Issue date: 07/02/1995
From: Giffrow B
NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20087B268 List:
References
EOP-2532, NUDOCS 9508070386
Download: ML20087B279 (33)
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{{#Wiki_filter:~ is a* s STATION PROCEDURE COVER SHEET A. IDENTIFICATION l Number: EOP 2532 Rev. _13

Title:

LOSS OF PRIMARY COOLANT Prepared By: Bill Giffrow B. REVIEW l have reviewed the above procedure and have found it to be satisfactory. TITLE SIGNATURE /DATE TITLE SIGNATURE /DATE DEPARTMENT HEAD 7/ / 7 2! / / MC'95 EcP 6Lul. (4E /2. IfEfCTT'(/te/9<:" TECHNICAL REVIEW h i v w A C. SPECIFIC UNREVIEWED SAFET/ QUESTION EVALUATION REQUIRED: Modifies intent of procedure and changes operation I of systems as described in design documents. YES[] NO [-( (If yes, perform written USQ determination and Safety Evaluation, and contact Manager, Safety Analysis Branch to determine need for Integrated Safety Evaluation.) i ENVIRONMENTAL REVIEW REQUIRED (Adverse environmentalimpact) YES [ ] NO [-}' D. SPECIFIC SAFET/ EVALUATION REQUIRED 1 Affects response of safety systems, performance of systems which may have been credited in the safety analysis or non-credited systems which may indirectly affect safety system response. YES [ ] NO[d, (if yes, coordinate Safety Evaluations and contact Manager, Safety Analysis Branch to determine need for Integrated Safety Evaluation.) E. INTEGRATED SAFETY EVALUATION REQUIRED YES [d NO [ ] F. BIENNIAL REVIEW This revision satisfies biennial review requirements. YES [ ] NO[g G. PROCEDURE REQUIRES PORC/SORC REVIEW (in addition to review, items with a YES response must be documented in the PORC/SORC meeting minutes.) YES (( NO [ ] H. EORC/SORC APPROVAL PORC/SORC Meeting Number 2 2 M l. APPROVAL AND IMPLEMENTATION The attaphed procedur 's hereby approved, and effective on the date below: Y C 9-6 'f5 sr. v)ct PRESIDENT /DIREDTOR - UNIT / SERVICES EFFECTIVE DATE SF301/14/s/DBM/93-53/1of1 PD D 0 o o336 P PDR

g 1 e UNIT 2 LOSS OF PRIMARY COOLANT 1. ENTRY CONDITIONS 1.1 The Standard Post "Ilip Actions have been accomplished r and 1.2 Plant conditions indicate that a loss of primary coolant has occurred by any one or more of the following a. Abnormal change in pressurizer level (C03) b. Pressurizer pressure going down (C03) c. Automatic actuation of Safety Injection System d. Containment pressure going up (C01) e. Containment temperature going up (C01) f. Containment sump level going up (C06) g. High containment radiation (RC14, C101) h. High quench tank level, temperature, or pressure (C03) i. Unbalanced charging and letdown flows (CO2) i l EOP 2532 Page 1 of 32 Rev.13

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. (

,$g e 1 i ' 2. ~ OPERATOR ACTIONS Instructions Contineency Actions. l 2.1* Confirm the diagnosis of a loss of 2.1 -If Safety Function Status Check ' l t coolant event criteria are not satisfied,DE S/G samples indicate a possible S/G a. Perform Safety Function Status 'Ibbe Rupture event, i L Checks Ihnn i. Comniete OPS Form a. Notify SS/SCO 2532-1 at approximately 10 minute intervals b. Refer to Figure 3.1, Diagnostic Flowchart, and d diagnose event [ ii. Direct STA qualified individual to review data - c. GQIQ appropriate EOP i and verify acceptance i criteria are satisfied b. Align S/G sample flow path (C05) t c. Direct Chemistry to perform the following i. Sample S/Gs for activity and boron ii. Frisk the samples 2.2 Referin EPIP 4400 and classify 2.2 Continue with this procedure event i l ? E i h i i EOP 2532 Page 2 of 32 l Rev.13

W (' Instructions Contingency Actions 2.3* If pressurizer pressure goes down 2.3 to 1600 psia (C03), IhC1 a. Verifv SIAS, CIAS, and a. Perform the following EBFAS @WC80) i. Manually initiate SIAS, l CIAS and EBFAS (C01) l ii. Verify SIAS, CIAS and l EBFAS (C01X/C80) J b. Verify at least I complete b. Ensure at least 1 complete train of CRACS operating train of CRACS operating (supply, exhaust and filter (supply, exhaust and filter fans) (C-25A, C-25B) fans) (C-25A, C-25B) c. Ensure acceptable safety c. Verify acceptable safety injection flowrate. (C01) injection flow by Refer to Figure 3.3 i, Fnsure electrical power to valves and pumps (C01/ local) ii. Ensure correct safety injection system valve lineup (C01) iii. Start idle HPSI, LPSI, and charging pumps (C01/C02) d. Stop 1 RCP in each loop (A d. Continue with this procedure and C preferred)(C03) e. Perform the following for the c. Continue with this procedure idle RCP spray valve (C03) i. Place controller in manual ii. Con the pressurizer spray valve, 2-RC-100E or 2-RC-100F EOP 2532 Page 3 of 32 Rev.13

~. p ..r; + l Instructions Contingencv Actions 2.4

  • H RCP NPSH requirements of Figure.

2.4 Continunwith this procedure l 3.5 are not met, j Then i a. Slap all RCPs (C03) b. Perform the following for both. pressurizer spray valves (CO3) i. Place controllers in l manual ii. Close the pressurizer spray valve,2-RC-100E or l 2-RC-100F c. Ensure "STM DUMP TAVG l CNTI", HIC-4165, in " MANUAL" and " CLOSED" l (C05) 2.5 Verify PORVs and pressurizer 2.5 H pressurizer pressure <2250 psia and -l safeties are not open by either PORV is open,' i Then slose the block valve for the open a. Normal quench tank level, PORV (C03) pressure and temperatures (C03) a. 2-RC-403 and t b. No acoustic monitor alarms (C02/RC05E) b. 2-RC-405 r 2.6 Review potentialleak paths and 2.6 Manually isolate valves isolate if possible a. Venfy letdown line isolation valves,2-CH-515 and 2-CH-516, closed (CO2) b. Verify RCS sample valves, 2-RC-45, 2-RC-001, 2-RC-002 and 2-RC-003, closed (C01X) c. Verify shutdown cooling system suction isolation valves, SI-651 and 652, closed (C01) EOP 2532 Page 4 of 32 Rev.13

y ~ l Instructions Contineency Actions V 2.7 Verify no leakage into RBCCW 2.7 EcIf0Im the following System by a. Surge tank level not going a. Check for localleakage (local) up (C06) b. Isolate component with leak : t b. RBCCW radiation (N/ local) monitors not going up (RC14) c. Drain surge tank to maintain level (local) 2.8 Check area radiation levels 2.8 Direct Health Physics to perform local l (RC14, C101) 1 surveys 2.9 jf containment pressure goes up 2.9 i to 5 psig (C01), I a. Verify SIAS,CIAS, a. Perform the following EBFAS, and MSI (C01X/C80) i. Manually initiate SIAS, CIAS, EBFAS and MSI (C01) ii. Verify SIAS, CIAS, EBFAS and MSI(C01X/C80) - b. Verify at least I complete b. Ensure at least I complete train train of CRACS operating of CRACS operating (supply, (supply, exhaust and filter exhaust and filter fans)(C-25A, fans) (C-25A, C-25B) C-25B) l EOP 2532 Page 5 of 32 Rev.13

y 4 g. f .p. ,) Instructions Contigency Actions e 2.10 Hcontainment pressure goes 2.10 up to 10 psig (C01), Thcn a. Manuallyinitiate CSAS (C01) a. Verify CSAS (C01X) b.~ Ensure adequate containment j b. Verify 2 containment spray header flows temperature and pressure . control by >1350 gpm each (C01) i. At least 3 CAR fans c. Verify 4 CAR fans operating in the Operating in the emergency mode (C01)' emergency mode (C01) at-ii. Bath of the following i At least 2 CAR fans e operating in the emergency mode e At least 1 containment spray header delivering >1350 gpm (C01) at iii. 2 containment spray headers delivering >1350 gpm each (C01) j 2.11 H EBFAS has initiated, 2.11 Continue with this procedure 1 ] Then align Condenser Air Removal System to Unit 2 Stack by a. Ensure Condenser Air Removal Fan, MF-55A or MF-55B, running (C06) and b. Open condenser air removal to #2 stack, 2-EB-57 (C06) l EOP 2532 Page 6 of 32 Rev.13 1

,g.-

t p-i instructions Contineency Aclions 2.12 If the containment Auxiliary 2.12 Continue with this procedure Circulation Fans are operating, Ihnn shift to slow speed (C01) CAUTION i Containment spray moisture may affect proper operation of non-qualified equipment and instrumentation inside containment. When termination criterion is met,' containment spray should be promptly terminated. i 2.13 When containment pressure is 2.13 Continue with this procedure <7 psig (C01), Ihtn a. Reset CSAS actuation modules (ESAS) i b. Slop the containment spray pumps (C01) c. Close CS HDR ISOL valves,2-CS-4.1A and 2-CS-4.1B (C01) i EOP 2532 Page 7 of 32 Rev.13

Instructions Continoency Actions i NOTE Plant cooldown must be initiated as soon as possible and within one hour after reactor trip to conserve condensate inventory. 2.14* Initiate a plant cooldown and 2.14 Contm.ue with th.is procedure depressurization to SDC entry conditions by a. Maintain steam generator i levels between 40-70% (C05) b. Operate steam dump / bypass valves m atmospheric dump valves to reduce RCS Tc at a rapid, controlled rate, Dol to exceed 80 F/hr (C03/C101/C05) c. When MSI block permitted, Ihtn block MSI(C01) 4 d. Reduce RCS pressure using main 91 auxiliary spray to maintain RCS pressure / temperature limits as indicated by Tn or_CETs (PPC or ICC cabinets). Refer to Figure 3.2 e. Refer to OP 2207 or AOP 2553 for additional actions required during the cooldown f. Hleak is isolated and SIAS has not actuated, Then block i SIAS during cooldown when permitted (C01) 1 EOP 2532 Page 8 of 32 Rev.13

L ,s .- ) Instructions Contingency Actions 2.15 Borate RCS to maintain SDM 2.15 Stop cooldown until SDM throughout the cooldown. Refer requirements are met to OPS Form 2208-13 2.16* Maintain RCS subcooling below - 2.16 If RCS subcooling above the upper the upper limits of the operating limits of the Pfr curve for Tc, area of Pfr curve for Tc (C02) by 3 hen a. Pressurizer heaters and a. Slap the cooldown spray (C03) b. Manually control pressurizer b. Charging and letdown (C03) spray (C03) c. Throttling of HPSI pumps c. Manually control charging and (if termination criteria met) letdown (CO2) (C01) d. If overpressurization is due to d. Refer to Figure 3.2 HPSI flow and HPSI termination criteria are met, Ihen throttle or stop HPSI flow t EOP 2532 Page 9 of 32 Rev.13

U: .: w ,J Instructions Contingency Actions 2.17 Eno RCPs are operating, 2.17 H natural circulation not verified, Ihcn verify natural circulation flow Then by allof the following a. Fncure adequate core cooling a. Pressurizer level >20% by (C03) i. Adequate saSty - b. Heat removal from at least injection flow. Referio 1 S/G (C05). Figure 3.3 ii. H suction source exists, c. RCS subcooling within Ihcn all available operating area of P/T curve charging pumps based on CEIk (PPC orICC operating (C03) cabinets) Refer to Figure 3.2 iii. CET temperature d. Loop AT (Tn - Tc) <45'F <800 F (PPC or Tc (C03/C101) Map Display) _ iv. Heat removal capability e. Tc constant or going down from at least 1 S/G (C03) (C05) f. Tu constant or going down b. Ecore cooling not adequate, (C03/C101) Then GQIQ EOP 2540 g. No abnormal difference (>10 F) between Tu and CE'It (C03/C101 and PPC or ICC cabinets) 2.18 H pressurizer pressure is >1600 2.18 Continue with this procedure psia and stable and containment pressure is <5 psig, IhcnIctet SIAS, CIAS, EBFAS, and MSI(ESAS) EOP 2532 Page 10 of 32 Rev.13

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f, 3 ^ i Instructions Contingency Actions i 2.19 When all the following conditions 2.19 Continue with this procedure t

exist, i

a. Pressurizer level >35% and i constant or going up (C03) b. RCS subcooling within operating area of P/T curve based on CETh or Tu (PPC or ICC Cabinets /CO3/C101) t ReferIn Figure 3.2 c. Heat removal from at least 1 S/G (C05) d. Reactor vessellevel above c top of the hot leg (.>_43%) (ICC Summary Display,PPC) l Then, HPSI may be throttled or pumps stopped 1 facility at a time (C01) 2.20 If pressurizer pressure is >360 2.20 Continue with this procedure psia and stable, Ihen stop LPSI pumps (C01) 2.21 If safetyinjection termination 2.21 Continuewith this procedure criteria can not be maintained, Then a. Start the applicable safety injection pumps (C01) b. Initiate full safetyinjection flow EOP 2532 Page 11 of 32 Rev.13

E '.. -) 7 1 i Instructions Contingency Actions i e E 2.22 If HPSI termination criteria met, 2.22 Continue with this procedure Then onerate HPSI pumps and charging pumps and letdown to restore pressurizer level 35-80% i (C03) 2.23 If RCPs are not operating, 2.23 Continue with this procedure Then review the need for i restarting RCPs. Consider a. Adequacy of RCS/ Core Heat ] Removal by natural circulation b. Existing RCS pressure and temperature c. Need for main spray 2.24 If RCP restart is desired, 2.24 Continue with this procedure Then determine if RCPs can be i started by allof the following j a. Pressurizer level >35% and constant or going up (C03) l b. RCS subcooling withm operating area of P/T curve as indice'ed by CElk or Tu l (PPC or 1CC cabinets /C03/C101) Referla Figure 3.2 j I c. Heat removal from at least 1 S/G (C05) j d. RCP start requirements are met. Referin OP 2301C e. Duration of RBCCW interruption to RCPs has been considered by the TSC f. RCP Seal condition (C04R) l EOP 2532 Page 12 of 32 i Rev.13

E-gg ') Instructions - Contingency Actions NOTE Pressurizer level and pressure can be expected to go down upon starting RCPs due to loop shrinkage and/or void collapse. The level may go down enough to drain the pressurizer. RCP operation with a drained pressurizer may continue provided HPSI and charging pumps are operating and RCP NPSH requirements are met. 2.25 If conditions exist for RCP operation 2.25 Continue with this procedure and RCP start is desired, Then a. Ensure allavailable HPSI and charging pumps are operating to make up for RCS contraction (0)1/CO2) b. Start 1 RCPin each loop (B and D preferred)(C03) c. Monitor RCS pressure and corresponding Tc for adequate pump NPSH. (C03) EcicIla Figure 3.5 t t 9 i I .1 l EOP 2532 Page 13 of 32 Rev.13

.;ji e1 e. r i lustructions Continoency Actions 2.26 Monitor for indications of RCS 2.26 Continue with this procedure voiding by. a. Pressurizer level goes up more than expected while using auxiliary spray (C03)- j or I b. Pressurizerlevel goes up more.. slowly than expected for existing HPSI and charging flow (C03) c. Unheated thermocouples in upper head indicate saturated conditions (ICC Summary Display) or d. Reactor vessellevel < 100% (ICC Summary Display) 2.27I Verify RCS voiding not inhibiting 2.27 Perform the following (C01/2) -i adequate core cooling by I a. Ensure at least one letdown + a. Both of the following isolation valve,2-CH-515 or ) 2-CH-516, closed i. Pressure / temperature b. Close pressurizer spray valves, limits of Figure 3.2 are satisfied for CEB or T s 2-RC-100E and 2-RC-100F, i (PPC or ICC and aux spray valve,2-CH-517 cabinets /C03/C101) c. Operate pressurizer heaters ii. Heat removal from at and/or all HPSI and charging least 1 S/G (C05) pumps to restore pressure / temperature limits of E Figure 3.2 (CO1/CO3) b. Both of the following d. Refer to OP 2398 for actions to i. Adequate Safety Injection vent reactor vessel head flow. Rcictio Figure 3.3 If CET temperature is greater or 3.4 e. ii. CEB <800 Fand than 800 F (PPC or ICC constant or going down cabinets), Ihen.GQIQ EOP 2540 (PPC or ICC cabinets) EOP 2532 Page 14 of 32 Rev.13

^,. e [ *.' g.- instructions Contingency Actions 2.28 YsIify CSTlevelis >70% 2.28 Perform the following (C05) a. Raise CSTlevel. Referin OP 2319B b. ~ If CSTlevel goes down to l <56% (C05), j Then verify fire system 3 available (Unit 1) c. If CSTlevel goes down to 16% (C05), j Han align fire system to j auxiliary feedwater. Referin OP 2322 2.29* Verify RWSTlevel >10% and 2.29 If containment sumplevelnot going down with containment going up, i sump level going up Ihnn (C01/C101) l a. Request advice from the TSC l b. Raise RWSTlevel to inhibit SRAS. Refer to OP 2304C 2.30+ If RWST level goes down to 2.30 Continue with this procedure 10%, Ben position SI/CS Pump Miniflow Bypass switches, 2-SI-659 and 660, to OPER (C01) 1 EOP 2532 Page 15 of 32 Rev.13

g ~.. ,-l A t > Instructions Contingency Actions 2.3f If RWSTlevel goes down to <9.5% and 2.31 Continue with this procedure SRAS has initiated, Ihtn a. Verify automatic actions (C01X) i. Both LPSI pumps stop (C01) ii. Both containment sump outlet isol valves,2-CS-16.1A and 2-CS-16.1B, open (C01) iii. Both RBCCW outlet valves from shutdown heat l exchangers,2-RB-13.1A and 2-RB-13.1B, open i (C06) iv. Both SI/CS miniflow valves, 2-SI-659 and 2-SI-660, closed (C01) b. Close RWST header isolation valves,2-CS-13.1A and 2-CS-13.1B (C01) c. Isolate non-vital RBCCW containment loads as follows i. Ensure all RCPs are stopped (C03) ii. Ensure "STM DUMP TAVG CNT1", HIC-4165, in " MANUAL" and " CLOSED" (C05) 4 iii. Clos RBCCW CTMT header i isolation supply valves, 2-RB-30.1A and 2-RB-30.1B (C06) iv. Close RBCCW CTMT header return isolation valves, 2-RB-37.2A and 1 2-RB-37.2B (C06) EOP 2532 Page 16 of 32 Rev.13

4 V InstructiQni Contingency Actions CAUTION Do not prematurely initiate SRAS. The manual action should not be taken until 6% RWSTlevel. 2.32k H RWST level goes down to 6% and SRAS 2.32 has no1 initiated, Ihtn a. Manually initiate SRAS and verify a. H automatic actions do Dat occur, automatic actions (C01X) Ihen i. Both LPSI pumps stop (C01) i. Slog both LPSI pumps (C01) ii. Both containment sump outlet ii. Open containment sump outlet l isol valves,2-CS-16.1A and isol valves,2--CS-16.1A and t 2-CS-16.1B, open (C01) 2-CS-16.1B (C01) iii. Both RBCCW outlet valves from iii. Open RBCCW outlet valves shutdown heat exchangers, from shutdown heat 2-RB-13.1 A and exchangers,2-RB-13.1A and 2-RB-13.1B, open (C06) 2-RB-13.1B (C06) iv. Both SI/CS miniflow valves, iv. Gose SI/CS miniflow valves, 2-SI-659 and 2-SI-660, 2-SI-659 and 2-SI-660 closed (C01) (C01) b. Close RWST header isolation valves, b. Continue with this procedure 2-CS-13.1A and 2-CS-13.1B (C01) c. holain non-vital RBCCW c. Continue with this procedure containment loads as follows i. Ensure all RCPs are stopped (C03) ii. Ensure "STM DUMP TAVG CNTI", HIC-4165, in " MANUAL" and " CLOSED" (C05) iii. Close RBCCW CTMT header supply isolation valves, 2-RB-30.1A and 2-RB-30.1B (C06) iv. Close RBCCW CFMT header return isolation valves, 2-RB-37.2A and 2-RB-37.2B (C06) EOP 2532 Page 17 of 32 Rev.13

-Q 4 4 Instructions Contincency Actions NOTE The HPSI pump design minimum suction pressure is 10 psig. This is indicated by LPSI pump discharge pressure (C01) or by local indication. Rising containment wide range sump level and pressure will contribute to this value. 2.33 Monitor HPSI pump 2.33 performance while on SRAS. (C01) Refer la Figure 3.4 a. Total HPSI flow >60 gpm a. If HPSI flow is <30 (30 gpm for 1 pump gpm/ pump, operation) Ihen gap I charging pump at a time and then 1 HPSI pump until the remaining HPSI pump flow is >30 gpm (C01/C03) i b. HPSI pump discharge b. If HPSI pump discharge pressure >800 psig pressure is less than allowed, Then throttle HPSI pump flow until the minimum t discharge pressure is attained (C01) i c. Stable motor current, c. If cavitation occurs, discharge pressure and Ihen throttle the affected flow pump discharge until the cavitation stops (C01)- i EOP 2532 Page 18 of 32 i Rev.13 j

4.M - y- . Instructions Contineency Actions L ;,1 CAUTION Containment pressure must be less than 10 psig to place and keep the hydrogen concentration monitor in service. 2.34 Ooerate hydrogen concentration 2.34 Direct Chemistry to sa:nple monitor. Refer in OP 2313C - containment. 2.3[ H containment pressure goes up to 10 2.35 Continue with this procedure

psig, Then isolate hydrogen concentration monitor (C01/C101) 2.38 When boric acid tank levels are <10%

2.36 Continue with this procedure (CO2), Then perform the following a.- Stop allcharging pumps (CO2) b. Stop boric acid pumps (CO2) c. Elevelin RWSTis >9.5% (C01), Then i. Open RWSTisolation, 2-CH-192 ii. Ensure RWST to charging suction,2-CH-504, open - iii. Close VCToutlet isolation,2-CH-501 iv. Operate charging pumps as required to restore pressurizer level to 35% - 80% (C03) EOP 2532 Page 19 of 32. Rev.13

a if ..;.4 j +. !;; n. 5 Instructions Contineency Actions l t i CAUTION a The installation of SIT breaker closing coils could involve significant - radiation exposure. Appropriate caution should be exercised during I the performance of this action. 2.37* When pressurizer pressure is <600 2.37 Continue with this procedure psia and stable with a controlled

  • cooldown in progress (C01),

l Then a.' Direct maintenance to install I the breaker closing coils for l all 4 SITisolation valves =* (local)' b. Close the 4 SIT isolation valves, 2-SI-614, p 2-SI-624,2-SI-634 and ? 2-SI-644 (C01) 'j 2.38 Determine if shutdown cooling 2.38 Continue with this procedure j system operation is possible within 8 hours after trip by 1 a. Pressurizer level >20% and constant or going up (C03) b. Pressure / temperature limits } of Figure 3.2 satisfied for all l RCS temperatures (ICC Display) c. RCS activity within appropriate limits (Confer with Technical Support i Center) d. Other conditions satisfied. Refer to OP 2310 EJ? 2532 Page 20 of 32 Rev.13

vg x q.' .0, t Instructions Contineency Actions CAUTION ,y Shutdown cooling initiation steps require valve manipulations in a potentially high radiation area. 2.39 H the criteria are satisfied for 2.39 Hshutdown cooling can not be shutdown cooling operation, initiated due to an inability to within 8-10 hours following depressurize the RCS, reactor trip, Then 1hcn a. Initiate shutdown cooling. a. Hvoiding is suspected, Refer to OP 2310 Then d i. Verifyletdown is isolated (CO2) ' . b. GQ.T.Q Step 2.41 ii. Close pressurizer spray valves,2-RC-100E and 2-RC-100F, and aux spray valve, 2-CH-517 iii. Operate pressurizer heaters and/or all HPSI and charging pumps within the pressure / temperature limits of Figure 3.2 (C01/2/3) iv. Monitor pressurizer level for trending of RCS inventory (C03) Continued On Next Page EOP 2532 Page 21 of 32 Rev.13

g ~ s. ~j [.. Imtructions Continoencv Actions 2.39.b. Edepressurization of the RCS to SDC entry pressure is still - not possible andvoidingin S/G tubes is suspected, l r Then i. Reduce the suspected S/G ' i - temperature by one or l both of the following.

  • Steaming
  • Blowdown and feeding to condense the S/G tube voids (C05)--

l ii. Monitor pressurizer level for trending of RJ inventory (003) c. E depressurization to SDC entry pressure is stillnot

possible, Then i.

Ooerate reactor head vent. to clear noncondensible gas. Refer in OP 2398 ii. Monitor pressurizer level and ICC display for trending of RCS inventory i I EOP 2532 Page 22 of 32 Rev.13

4. Instructions Contincency Actions CAUTION Boron precipitation control steps require valve manipulations in a potentially high radiation area. 2.40 Initiate bortu precipitation control 2.40 Initiate boron precipitation control via via SDC suction within 8-10 hours pressurizer auxiliary spray by the following reactor trip by the following following a. Verify both HPSI pumps operating a. Verify RCS pressure <200 psia (C02) (C03) b. Slop Facility 1 HPSI pump (C01) b. Close LPSI injection valves, 2-SI-615,625,635 and 645 c. Close Facility 1 HPSIinjection (C01) valves,2-SI-617,627,637 and c. Open 647 (C01) i. SDCS warmup isolation d. OpIn charging to HPSI hydro test valve,2-SI-400 (local) isolation valve,2-CH-340 and 2-CH-440 (local) ii. SDCS suction isolation, 2-SI-709 (local) c. Verify open charging header ~ d. Close 2-SI-652 Manual Disconnect Switch, f. Open pressurizer aux spray 89-SI-652. (West wall of isolation,2-CH-517 (C02) Control Room) e. Open keylocked SDCS suction E. SlaI1 Facility 1 HPSI pump (C01) isolation valves,2-SI-651 and 2-SI-652 (C01) h. Close loop 1A and 2A charging isolations,2-CH-518 and 519 f. Start 1 LPSI pump (C01) (CO2). g. Verify flow is >185 gpm (C01) i. Ensure 2.30 gpm flowis established (charging header flow) (CO2) EOP 2532 Page 23 of 32 Rev.13

~ ~ g~ ~, ) Instructions Contingency Actions l 2.41* Hcontainment hydrogen 2.41 Continue with this procedure concentration exceeds 1.5%, Then onerate hydrogen recombiners. Referin i OP 2313C i 2.42 H hydrogen recombiners not 2.42 Continue with this procedure operable or hydrogen concentration exceeds 3% ' (C101), Then t ? a. Obtain TSC permission to perform containment i hydrogen purge b. H TSCrecommends containment hydrogen

purge, I

Then perform containment hydrogen i purge. Referin j OP 2313C c. When TSCrecommends termination of containment hydrogen j

purge, Then stop containment hydrogen purge 2.43 Refer to EOP 2526 and 2.43 Continue with this procedure i

perform follow-up actions as time permits j l i i 1 2 j EOP 2532 Page 24 of 32 Rev.13

i 1 ) Instructions Contingency Actions - 2.44 When all the following 2.44 Continue with this procedure conditions are satisfied a. All Safety Function Status Check Criteria satisfied b. All acceptance criteria met for at least 3 consecutive Safety Function Status Checks c. RCS conditions are i stable d. An approved procedure i can be exited to c. Director of Station Emergency i Organization / Assistant Director of TSC l j concurrence Then esit this procedure 3. FIGURES 3.1 Diagnostic Flow Chart 3.2 RCS P/r Limits 3.3 Safety Injection System Delivery Flow - Pre SRAS 3.4 Safety Injection System Delivery Flow - Post SRAS 3.5 RCS NPSH Requirements i 4. FUNCTIONAL SCHEMATICS 4.1 None I - Final - EOP 2532 Page 25 of 32 Rev.13 7-w +m--

C=,3 M REACMTTY COfGROL 5AFETY NO FUNCTION MET YLa l ir M E AT LEAST I BOTH DC BU$13 No DCBUS NO ENERGIZED ENERGIZED i, ir 00 TO EOF 2MO FUNCTIONAL I ' RE(X)VERY M M ATIJAST 1 ATLIAST1 VITAL AC,4 DC ON-416K g NO - NO ENERGIZE ENJE O ZED y3 y Ls 2 AT LIAST 1 RCP NO ^ CONS! DER USE OF CONSIDER USE OF EOF 1524, EOF 25M EECTRICAL STATION EMERGENCY BLACKOUT E I 1111111111p m OTHER SCTR INDICATIONS ATIIAST I $t)

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  • 1750 PSIA AND No PRESS eguo PSI A wo OOfNG IJP ND SUBCOOLJNO OOING UP M

CTMT PRESS

  • 2.0 PSIG DR Y

ODING UP U YJ O MO 00 UP BY O v, INDICATIONS gggp 1P do M O y y CTMT RAD CTMT PRE 55 l j . NO MONS OOINO UP >2.0 PSIO gg No QRHAVE OOING UP d O i, CONSIDER USE OF CONSIDER USE OF EOP 1532. IDS $ OF gor guo, i, YJ FUNCTIONAL YJ ACCIDM RECDVERY I (OUT51DE CIMT) g CONSIDER USE OF CON 51 DER U5E OF ODNSIDER USE OF CONSIDER USE OF EOP 254 EOP 2$4 EOP 2534. 4' EOF 254 EXCESS STEAM EXCESS SITAM STEAM IDSS OF COOLANT DEMAND DEMAND OENERATOR ACCIDENT (INSIDE CIMT) (Otf! SIDE CTMT) TUBE RUPTL'RE _1 _1 _I 1 l Note. lf an e ectruml event is dagnosed eoncurrently snih i ether event, it h IIIIIIIIIIII appropnene to nas the event-sperdic EOP as long as 1 ettal electrzal bus a energized. l'NIQ1'E SYMFTOMS j U LDCA HIGH RADIN CTMT i "O]7 'yNgE1 '"# OO TO FOP 2Me EOP2$32 OR AUX BIDO SINGLI EVENT j mAGNOsis t DIAGNOSTIC FLOWCHART HiGwRADiN POSSIBLF FIGURE 3*1 s TR SECONDARMLANT EOP2534 %TTH NORMAL CTMT (DNDITIONS (s \\00 TOINDICA1TD LITHER 50 PRESS OPTIMAL ESD LOW HTTH NO [ RFf0VERY EOP ggpqmy pgp EOP2536 11111111111112 EOP 2532 Page 26 of 32 Rev.13

li t 2500 l < 1'.. -- I w NON-p s 2400-- OPERATING .u I f ~ W / TECH SPEC ) AREA t s ' (- ..g COOLDOWN / .. ~, A 4 CURVE / ~l l ( 3: 2100

f fm 200'F SUBCOOLING 4

c-I g /' CURVE (1) 1900 4.; I 1800 l ,L } } l; n 1700 if [ [. 1600 / J[ OPERATING [' OPERATING AREA 1500 AREA 'J ) l $ l q .[1400 j[ [ [ :.'[L + uJ 1300 s / / A 7 B,,1200 ,( ,/ /:sJ ~ Jl l lI l 81000 j j j f x l l 'W ['[ h: J ' [ i 700 / [ pN' SATURATION CURVE \\ r f C. v 500 DEGRADED 2 [ m R (2) N [ j NON-RATING 300 r_ _ y e.r l w f) e x w +- l SDCWI DOW /h ^ 30*F SUBCOOLING l 100-! t CURVE l E o ~

25) 2 5 240 560 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 RCS TEMPERATURE ('F)

(1)This curve supercedes the Tech Spec Cooldown Curve any time the RCS has experienced an uncontrolled cooldown to below 500'E (2)This curve supercedes the 30*F Subcooling Curve if, at any time, Containment pressure exceeds 5 psig. RCS Pfr CURVE FIGURE 3.2 EOP 2532 Page 27 of 32 Rev.13

r L PTS LIMIT TECH SPEC DEGRADED 30*F 200*F COOLDOWN NT SUBCOOLED SUBCOOLED CURVE MINIMUM MAXIMUM MAXIMUM RCS SATURATION MINIMUM TEMP PRESSURE PRESSURE PRESSURE PRESSURE PRESSURE (*F) psia (psia) (psia) (psia) (psia) 600 1543 1919 1919 Upper Limit of 595 1487 1852 1852 2400 590 1432 1787 1787 585 1378 1723 1723 580 1326 1662 1662 575 1276 1602 1602 570 1227 1543 1543 565 1180 1487 1487 560 1133 1432 1432 555 1089 1378 1376 550 1045 1326 1326 545 1003 1276 1276 540 963 1227 1227 535 924 1180 1180 530 885 1133 1133 525 848 1089 1089 520 813 1045 1045 j 515 778 1003 1003 510 744 963 963 505 712 924 924 ] 500 681 885 885 l 495 650 848 848 490 621 813 813 485 593 773 773 480 566 744 744 475 540 712 712 470 515 681 687 465 490 650 657 y 460 467 621 633 2400 455 434 593 607 2286 450 423 566 582 2208 445 402 540 561 2133 440 382 515 540 2060 435 362 490 522 1989 430 344 467 502 1919 425 326 434 483 1852 420 309 423 467 1787 415 292 402 451 1723 410 277 392 436 1662 405 262 362 408 1602 400 247 344 406 1543 RCS PRESSUREfrEMPERATURE LIMITS Figure 3.2 EOP 2532 Page 28 of 32 Rev.13

_-4 e g PTS LIMIT TECH SPEC DEGRADED pp 200*F COOLDOWN SUBCOOLED SUBCOOLED CURVE MINIMUM MAXIMUM MAXIMUM - RCS SATURATION MINIMUM TEMP PRESSURE PRESSURE PRESSURE PRESSURE PRESSURE - (*F) psia (psia) (psia) (psia) (psia). 395' 233 326 392 1487 Upper Limit of 390 220 309 378 1432 2400 385 208 292 366 1378 i 380 1% 277 353 1326 375 184 262 340 1276 + 370 173 247 329 1227 365 163 233 319 1180-360 153 220 309 1133 355 144 208 299 1989 l 350 135 1% 289 1045 j 345 126 184 281 1003 340 118 173 275 %3 y. ] 335 110 163 265 924 330 103 153 256 885 325 144 251 848 2336 320 90 135 242 813 2250 315 84 126 236 778 2150 i 310 78 118 230 744 2058 305 72 110 224 712 1960 300 67 103 219 681 1855 295 62 214 650 1750 290 58 90 210 621 1650 285 53 84 205 593 1550 280 49 78 202 566 1450 275 45 72 198 540 1355 270 42 67 1% 515 1275-265 39 62 192 490 1195 260 35 58 190 467 1125 255 32 53 188 434 1168 [ 250 30 49 184 423 1000 l 245 27 402 949 l 240 25 382 890 235 23 362 849 230 21 344 800 1 225 19 326 760 220 17 309 715 215 16 292 678 210 14 277 648 205 13 262 612 200 12 247 577 j I ~ RCS PRESSURE / TEMPERATURE LIMITS Figure 3.2 i i EOP 2532 Page 29 of 32 Rev.13 {

1300 l l l l PRE-SRAS CONDITION 4 1200 l 4 + 1100 M i s r 1000 ,n.e [+W [

m 900 vw

+ga,. ..,y, 800 ~ E w @ 700 u

m i

h 4': ACCEPTABLE s ..} FID W m t N t } t p ~

  • 500 g

+- A 400 f i t 300 C '. :.. .s. :s w. l 200 ~_ Q> g--{ ".g'

m n

...g,;;. j N I 100 UNACCEPTABLE FLOW S- .s 7 fyf0

  • 1 ll ggg. 7 @jk g$h!h.YIk.: \\

.(sy Njiy Ei jGe y ,37 - y +;g g-g 0 0-500 1000 1500 2000 2500 3000 3500 4000 4500 I i TOTAL OF FOUR HPSI AND LPSI HEADER FLOWS (gpm) l NOTE 1: This curve is based on one facility operating and at least one Charging Pump in operstion. NOTE 2: If Containment pressure exceeds 5 psig at any time during an event.Ihtn DO NOT use this curve. Its accuracy is in doubt. When determining Safety Function status consider Safety Function satisfied if all other safety function parameters meet criteria. i PRE-SRAS MINIMUM REQUIRED SAFETY INJECTION FLOW FIGURE 3.3 EOP 2532 Page 30 of 32 Rev.13

1300-l N 1200-

m. w lb g %e j'hy gy P.

N , ' ".g,T ?"r > L.:., x,y Q r C & m&,%- &v y' i me..n 1 x Irhh E [1,o,? k/* SEi, 4'4 'xb h lh . 4 ia41 Vn.4., s-. m ,1 a at r.. g k 4 h k$ N hi [ ACCEPTABLE y

  1. ,.4, n g E ca)

FLOW 1 N,. w-s.

v., 3..

zi a + *.. i p $ M W p., g q q u p m w e m t a,,WW, A, .a,-., 800: ..y e, d,e M W 4,.. $~ s w m : m.m n~ za\\ m n ,m w ~ $~es., 2, w m g w,,. m, ;yM g r W w t J 1.Q n.., i ~ ,e w G k-,. % lc L,. g, g s s D 700- .~; 9

g., p 4 A

g Q S'u w a W L y @W

% e y

+ SS W u @'a !Q: .n m w w ,E M W n g m o4-x %_.47 lO ,H. j y! zy g .j p- + m 1 t" 4.*

.3 a

m. e a* E 600- .N ?g m., .y g

q.,

f y,b 1 ? UNACCEPTABLE

  • f 2 g

n )& ,r. ~ . FLOW H h' $t ' ^N $' Q O %)[ (T 500- ~ 3 2@ w?, % w; & # % l.; m e w w

  1. m ;

g Q n $s, Q W. Q,.., 4 g, m% h. 18 g I' ). 6 % W x w, 1,. g. ~. 400-v n p ,Y - e x, n N '^ ,.4 'f' .w** 'a f

?e i.+

y' j?., TS p m .m #l..n a n. W .W q- @ v + + i yp: p y l

n.. ~. g

', M u>; e ~ c:c + L n m m g us====w. +g 1,' n yg. y ~3c4 + + w y m v_ n s ) e r ,.y ,s ,e 5" 4f S. N, h6, .,,g ( 6,

j+ 4 d@, ; vt W

'.4 A i-c:- ,g 'n + w, m. n, p r c [..,. >r" -3,,< f 4{} .m., r. sys 'n'. z ;;<^ e a ' ^ + <, + y ?,. ,,n., p~. %U" ~- r.

6, n

+ n, s yc s .a % ( f 3 s-u >u .c s a w g u, m .s y a t w r

g. y 3,. 4+ w a

y% -y. _.es, y ,n-r. ,7 1 .y; m w ~ a s n u

n. y

. v-e, a v z r ~ ry. em .n s d m .. m a .t I ' dM ^/ l h) E [ a D s_,,+t s n W m M, e e 4 7t ;4 A e y

p;y 4

&t ,A. g., W, V!q~ ' mg

sfp,

'. g:p g' p4 , 4 I e n a w &n s-' m W i 'W. 4'!y

2 k%

3, o " n l *y.1 ~ ^'

4 1

F' H 0; 0 30 60 90 120 150 180 210 240 270 300 330 360 390 420 450 480 510 540 570 600 TOTAL SAFETY INJECTION FIDW(gpm) NOTE h This curve is based on pah one HPSI facility operating. NOTE 2: If Containment pressure has exceeded 5 psig at any time during an event, Then DO HQI use this curve. Its accuracy is in doubt. When determining safety function status, co.nsid. er the safety function satisfied if all other safety function parameten meet their criteria. POST - SRAS MINIMUM REQUIRED SAFETY INJECTION FLOW FIGURE 3.4 EOP 2532 Page 31 of 32 Rev.13

c. Il l II 1550 1500 1450 II III 34. 1350-II III 13. l I III / 1250 II !II / 12m II III /i 313o II III b 3300 E l I I I I OPERATING [f;f;L 1050 l l l l l AREA g.!, m 1000 f- $ 950 g ow-1I IIIII / f 850 Il g 300 II IIIII A !S 1I I I I I I MINIMUMPRESSURE N 3 750-l l l !!Il / FOR RCP OPERATION 700-13 II IIIIII 650 E 1I IIIIIII A 600-II lII!!!I 550 !l I l lll! 500-Il 450 Il !Il!I -/ !II!ll! 400 350 ll ll l '!H NON-OPERATING 300 AREA 250--- 200---- 150--- SDC TING l A 100--- 50----

h 0-0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 425 450 475 500 525 550 RCS TEMPERATURE - Tbold (*F)

RCP NPSH REQUIREMENTS FIGURE 3.5 l l i i i EOP 2532 Page 32 of 32 Rev.13 ]}}

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