ML20205A410

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Rev 5 to Emergency Operating Procedure EOP 2540, Functional Recovery
ML20205A410
Person / Time
Site: Millstone, Haddam Neck, 05000000
Issue date: 02/20/1988
From: James Smith
CONNECTICUT YANKEE ATOMIC POWER CO.
To:
Shared Package
ML20204H467 List: ... further results
References
EOP-2540, NUDOCS 8810250506
Download: ML20205A410 (32)
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Text

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STATION PROCEDURE COVER SHEET

  • A. IDENTIFICATION g Number: E0P 2540 Rev. ,5,

Title:

FUNCTIONAL RECOVERY Prepared By: J. SMITH B. REVIEW I have reviewed the above procedure and have found it to be satisfactory.

TITLE SIGNATURE DATE DEPARTMENT HEAD . 2[lf/fP m- <

C. SPECIFIC UNREVIEWE0 SAFETY QUESTION EVALUATf*N REQUIRED:

Modifies intent of procedure and changes operation of systems as described in design documents. YES N NO ( )

(If yes, perform written USQ determination and Safety .

Evaluation, and contact Manager, Safety Analysis Branch to determine need for Integrated Safety Evaluation.)

ENVIRONMENTAL REVIEW REQUIRED (Adverse environmental impact) YES ( ) NO N D. SPECIFIC SAFETY EVALUATION REQUIRED 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 N NO [ ]

(If yes, perform written Safety Evaluation and contact Manager, Safety Analysis Branch to determine need for Integrated Safety Evaluation.)

E. INTEGRATED SAFETY EVALUATION REQUIRED p,. Alm / st.a'd, YES [ ] NO ()d s/it/tt F. PROCEDURE REQUIRES ORC'5046 REVIEW (In addition to reWe< items with a YES response must be documented in the PORC/SORC meeting minutes.) YES Dd NO [ ]

G. SORE-APPROVAL h/GGAG-MeetingNumber Z-FI-7Y H. APPROVAL AND IMPLEMENTATION The attached procedure is hereby approv'Jd, and effective on the date below:

Yk4/$fA L gtion/5ervRe/ Unit Superintendent titoist EffettiVe Date SF301/9/s/SES/87-12/lof1 0010250506 001007 DR ADOCK 050 3

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FUNCTIONAL RECOVERY J

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FUNCTIONAL RECOVERY

1. PURPOSE To provide a systematic procedure for events in which a diagnosis is not apparent, not possible or complicated by multiple events. This procedure provides operator actions which must be accomplished after the Standard Post Trip Actions. The actions of this procedure are necessary to ensure that the plant results in a stable safe condition.
2. ENTRY CONDITIONS
a. The Standard Post Trip Actions have been performed and
b. M of the following
1. A reactor trip has occurred with abnormal concurrent symptoms that do not allow diagnosis,
11. Any condition or pattern which the operator considers serious for which abnormal or emergency guidance cannot be identified, iii. Actions taken in other Emergency Operating Procedures are not satisfying their respective safety function status checks.

O E0P 2540 Page 2 Rev. 5

o

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O FUNCTIONAL REC 0VERY
3. OPERATOR ACTIONS Instructions Contingency Actions 3.1 Verify Standard Post Trip Actions, 3.1 Perform Standard Post Trip E0P 2525, have been performed Actions, E0P.2525 3.2 Verify reactivity control by 3.2
a. Reactor power less a. Refer to Functional l than 5% and Recovery of Reactivity decreasing (C04) Oontrol.E0P2540A 1

i aj and

b. No more than 1 CEA b. Continue with

~ () not inserted (C04) this procedure t

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.,~.- --.- -- - _..,,--- - .- . - . , - - . - - ..--,-c- - - .

l e .

l Instructions Continoency Actions

! 3.3 Verify availability of Vital 3.3 Auxiliaries by the following

a. Vital DC Bus 201A or 2018 a. jf neither vital DC energized (C07) bus is energized, Then go to Functional l

Recovery of Vital l

Auxiliaries E0P 25408, Step 3.2 l b. Vital AC Bus 24C or b. Refer to Functional 240 energized (C07) Recovery of Vital -

' Auxiliaries, E0P 25408, Step 3.3

c. Instrument air header c. Refer to Loss of pressure greater than Instrument Air, AOP 2563 90 psig (C06) i
d. d.
i. At least one train of 1. Refer to loss of RBCCW operating (C06) RBCCW, A0P 2564
  • n.$
11. At least one train of 11. Refer to Loss of associated service water Service Water, operating (C06) A0P 2565
e. Continue with this procedure O

E0P 2540 Page 4 Rev. 5

~ -

(v Instructions Contingency Actions CAUTION Pressurizer level may not provide an accurate indication of RCS inventory due to soids. Voids may exist, especially if RCPs are l not running. However, pressurizer level in conjunction with a subcooled RCS is an indication that the core is covered. The reactor vessel level monitor gives an indicat'on of void size above the core.

3.4 Verify RCS Inventory Control by 3.4 -

the following

a. Pressurizer level between a. Refer to Functional 20 and 65% (C03) Recovery of Inventory and Pressure Control.

E0P 2540C and

b. Pressurizer level trending b. Continue with this to 35-45% (C03) procedure
c. Pressure /Temperatura limits of Figure 4.1 satisfied for all RCS temperatures (C03/C101)

O E0P 2540 Page 5 Rev. 5

{

Instructions Contingency Actions 3.5 Verify RCS pressure control by 3.5 Do the following

a. Pressurizer pressure a. If pressurizer 1900 - 2350 psia (CO3) pressure decreases y and to 1600 psia (CO3), Then do the following:
b. Pressurizer pressure trending i. Verify (or to 2250 - 2300 psia (CO3) manually initiate)

SIAS, CIAS, and EBFAS (C01/C01X)

{ ii. Stop all RCPs- (CO3)

b. Refer to Functional Recovery of RCS Inventory and Pressure Control.

E0P 25400

c. Continue with this procedure O

E0P 2540 Page 6 Rev. 5

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Instructions Contingency Actions NOTE There is a 3 r.linute and 25 second delay associated with th's automatic initiation of Auxiliary Feedwater.

3.6 Verify RCS heat removal 3.6 Do the following by the following

a. RCS Tavg is 530-545*F (C04) a. E steam generator level less than 12%,

Then verify automatic Auxiliary Feedwater initiation (or manually Initiate) (C05)

b. Steam generator level b. E steam generator is 10-80% or there is pressure less than adequate feed flow (C05) 500 psia, Then, verify MSI (C01), or manually initiate by the i following
c. Steam generator pressure i. Close MSIVs (C05)
is 880-1000 psia (C05) 11. Close MSIV bypasses (C05)

' 111. Close main and auxiliary feedwater air assisted check valves (C05)

d. Steamjetairejector, iv. Close both main blowdown, and main steam feedwater regulating 3

line radiation monitors valves (C05) l not alarming. (RC14 and RC05E). v. Trf'y both main feedwater pumps l (C05)

!O l

E0P 2540 Page 7 Rev. 5 i

t

l Instructions Continaency Actions  ;

vi. Close main steam f* low point drain '

I valves (C07) vii. Close main  :

feedwater regulating valves bypass valves (C05) ,

c. Refer to Functional  ;

Recovery of RCS Heat Removal, E0P 25400.

d. Direct Chemistry to  ;

sample steam generators for activity lO e. Continue with this j procedure i

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Rev. S 1 t

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Instructions Contingency Actions 1

3.7 Verify normal contaitnant conditfans 3.7 D_o the following by the follow ^ag

a. Containment pressure ',ess than a. E containment pressure 2 psig (C01) increases to 5 psil (C01), Then verify (or manually initiate)

SIAS, CIAS, and EBFAS (C01/C01X)

b. Containment temperature less b. ,I_f containment pressure than 120*F (Computer CVCONTEMP increases to 27 psig (C01) or C01 HJS8096 Points 5 and 6) thenverify(ormanually initiate) CSAS (C01/C01X)
c. No in:rease in containment c. Refer to Functional

, radia1. ion monitors (RC14 and Recovery of Containment C101) Integrity, E0P 25s0E.

d. No unexplained increase in d. Continue with this containment sump level (C06) procedure
e. Steamjetairejectors, i blowdown, and main steam line radiation monitors not alarming (RC14 and RC05E).

t

!O E0P 2540 Page 9

< Rev. 5

b, -

Instructions Contingency Actions 3.8 H the safety functions are 3.8 a. Implement Functional satisfied per steps 3.2 through Recovery procedures as 3.7, Then go to the Reactor Trip required.

Recovery, E0P 2526 and

b. Continue with this procedure.

CAUTION SS/SCO must be notified immediately of any safety function ,

criteria not satisfied. '

3.9 Perform Safety Function Checks 3.9 If any safety function

a. Complete OPS Form 2540-1 acceptance criteria not at approximately 10 minute satisfied, Then reevaluate intervals until plant conditions use of another success path, stabilize Refer to appropriate and restoration procedure.
b. Direct STA qualified indi-vidual to review data and verify acceptance criteria are satisfied O

E0P 2540 Page 10 Rev. 5

Instructions Contingency Actions 3.10 As time permits, refer to 3.10 Not applicable Reactor Trip Recovery, E0P 2526, and perform additional steps as required 3.11 3.11 Not applicable

a. Maintain plant in a stable condition 9.E
b. Cooldown to cold shutdown conditions. -

Refer to OP 2207, Plant' Cooldown or A0P 2553, Plant Cooldown Using Natural Circulation i

4. FIGURES 4.1 RCS Pressure Temperature Limits i

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! E0P 2540 Page 11

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. 2500 l

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- ACCEPTABLE ~

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ACc6 PTABLE 2000 o i

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s. .: . . :. J _ _.___ -.__ ___

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  • 500 600 300 400 200 RCS TEMPERATURE (F)
  • This curve supercedes the 100F/HR cooldown curve any time the RCS has experienced an uncontrolled cooldown to below 500F.'
    • This curve supercedes the 30F subcooling curve if, at any time, the containment pressure has exceeded Spsig.

E0P 2540 Page 12 FIGURE 4.1 RCS PRESSURE /TDIPERATURE LittlTS Rev. 5

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RCS PRE SURE/ TEMPERATURE LIMIT DATA PTS LIMIT 100*F/HR 30*F DEGRADED 200*F C00LDOWN SUSC00 LED CTMT SUSC00 LED CURVE 1 RCS 5ATURATION MINIMUM MINIKr. MAXIMUM MAXIlWM TEMP PRES 5URE PRES 5URE PRES $URE PRESSURE PRESSURE

('F) (psia) (psia) (psia) (psia) (psia) 600 1543 1919 1919 Upper Limit of 595 1487 1852 1852 2350 590 1432 1787 1787 r

_585 1378 172? 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 k

535 924 1180 11 %

530 885 1133 1133 n' 525 848 WM 1089 T20 813 ~1045 1045 515 778 1003 1003 510 744 963 963 505 712 924 924 500 681 885 885 495 650 848 848 F40 621 813 813 485 593 773 773 480 566 744 744 475 540 712 712 470 515 681 687 657 U 465 490 650 460 467 M1 633 2350 455 4M bsJ 607 2286 .

450 423 566 582 2208 445 402 540 5" 2133 440 382 515 540 2060 435 362 490 522 1989 430 344 467 502 1919 425 326 4M 483 1852

. ~

467 1787 Tio 309 423 415 212 402 451 1723 y 410 277 392 '436 1662 405 262 362 408 1602 400 ~ 247 344 406 1543 o.

IOP 2540 Page 13 Rev. 5 .

i .

RCS PRESSURE / TEMPERATURE LIMIT DATA (Cont'd)

PTS LIMIT 100*F/HR 30*F DEGRADED 200*F COOLDOWN SUBC00LE0 CTMT SUSC00 LED CURVE MINIMUM MINIMUM MAXIMUM MAXIMUM RCS SATURATION PRESSURE PRESSURE PRES 5URE PRESSURE '

TEMP PRESSURE (psia)

(psia) (psia) (psia) (psia)

(*F) 326 392 1487 Upper Limit 395 233 -

of 2350 220 309 378 1432 390 208 292 366 1378 385 196 277 353 1326 380 184 262 340 1276 375 173 247 329 1227 370 163 233 319 1180 365 153 220 309 1133 360 144 208 299 1089 355 135 196 289 1045 .

350 126 184 281 1003 345 118 173 275 963 340 110 163 265 924 335 103 153 256 885 330 96 144 251 848 325 813 320 90 135 242 3

84 126 236 778 315 78 118 230 744 310 72 110 224 712 305 681 300 67 103 219 650 0 395 62 96 214 90 210 621 2230 290 58 2100 84 205 593 285 53 1970 49 78 202 566 280 1850 45 72 198 540 275 515 1730 270 42 67 196 192 490 1620 265 39 62 190 467 1530 260 35 58 188 434 1450 255 32 53 184 423 1370 250 -

30 49 402 1300 245 27 1230 382 240 25 1170 362 235 23 1100 344 230 23 326 1040 225 19 309 98_0 220 17 930 292 215 16 880 4

" .277 210 14 840

  • - 262 205 13 800 247 200 12 ,

O E0P 2540 Page 14 i ,

Rev. 5

k S. - %Vk 9/7)ff J-jg-f 3f

  • EFFECTIVE DATE

'FORMAPP'.dE0BYSTATIONSUPERINTENDENT R PORC MTG. NO.

.[ FUNCTIONAL RECOVERY SAFETY FUNCTION STATUS CHECK NOTES:

1. The purpose of this form is to ensure that all necessary information is reviewed when using E0P 2540, Functional Recovery. The safety function status check verifies by independent assessment that the operator is using the correct procedure. It also assures that the procedure is satisfying all relevant safety functions and maintaining adequa' core cooling.
2. Safety function status is considered satisfied when all of the parameters of any one condition meet their criteria. .
3. With the integrated computer system functional, the safety function status may be determined from the SPDS displays. The SS/SCO shall ensure the correct recovery E0P number is selected at the SPOS CRT.

The safety function status should be logged below approximately every 10 minutes until plant conditions stabilize.

Safety Function Status (YES/NO)

Reactivity Inventory Pressure Heat Removal Containment Integrity Vital Auxiliaries Time 4

4. If the integrated computer system is not functional, then completion of the rest of this form is necessary at approximately 10 n.inute intervals until the plant conditions stabilize.

i

5. Parameters marked with an asterisk require meter readings to be logged.

All other parameters are responded to by yes or no.

OPS Form 2540-1 Rev. 4 Page 1 of 13

O FUNCTIONAL RECOVERY

,x SAFETY FUNCTION STATUS CHECK I '

)

/

. CAUTION

$$/SCO must be notified immediately of any safety function criteria not satisfied.

TIME */ DATA ACCEPTANCE PARAMETER CRITERIA / / / / / / /

1. REACTIVITY CONTROL ,

Condition 1 - CEA Trip cm

s. ,, a. Reactor Power a.

(C04) 1. < f,%

30d it. De:reasing

b. CEA Position u. No more (C04) than one CEA not inserted c.

Tc (CO3)

c. > 500*F _ _ _ _ _ , _ ,

(

N,_/

OPS Form 2540-1 Rev. 4 Page 2 of 13 AUG 0 3 1958

ACCEPTANCE PARAMETER CRITERIA DATA

1. REACTIVITY CONTROL (cont)

(

V; Condition 2 - CVCS Boration

a. Reactor Power a.

(C04) 1. < 5%

and ii. Decreasing

b. BAST level (CO2) b.
i. level A decreasing
  • B _,_

(adding boron to RCS)

E ii. Shutdown margin established .

per OPS Form 2208-13 Condition 3 - Boration Using ECCS

[3'

a. Reactor Power a.

(C04) 1. < 5%

and ii. Decreasing

b. SIS Flow b. Acceptable (C01) per Figure 1
c. Charging Flow c. When a suction (CO2) source exists, all available pumps operating -
d. RWST level d.

(C01) 1. > 9.5%*

E

11. H < 6-9.5%

Then SRAS

e. Alternative to Shutdown Margin b c and d above: established per h) v OPS Form 2208-13 OPS Form 2540-1 Rev. 4 Page 3 of 13 AUG 0 J GS3

ACCEPTANCE

-~

PARAMETER CRITERIA DATA 7 3 x_)

2. RCS INVENTORY CONTROL Condition 1 - CVCS
a. Pressurizer Level a. 20-80%* _

(CO3)

b. Pressurizer b. Acceptable 5 pressure and per Figure 2 operating loop Th (C03/C101) '
c. Reactor Vessel c. Above top of ,

Level (ICC level hot leg display or ICC (>43%)

cabinets) v Conditio. 2 - ECCS

a. SIS Flow a. Acceptable (C01) per Figure 1
b. Charging Flow b. When a (CO2) suction source exists, all available pumps operating
c. RWST level c.

(C01) 1. > 9.5%*

2r

11. E < 6-9.5%

Then SRAS

d. Reactor Vessel d. above fuel Level (ICC level elignment m plate
  • s display or ICC (>0%)

cabinets)

OPS Form 2540-1 Rev. 4 Page 4 of 13 AUG 0 3 G53

ks_ ,) ACCEPTANCE PARAMETER CRITERIA DATA

3. RCS PRESSURE CONTROL Condition 1 - Pressurizer
a. Pressurizer Pressure a. Acceptable per and Th and Tc (C03) Figure 2 Condition 2 - ECCS .
a. SIS Flow a. Acceptable per (C01) Figure 1
b. Charging Flow b. When a suction source exists, r( ') (CO2) all available pumps operating O

OPS Form 2540-1 Rev. 4 Page 5 of 13

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( ) ACCEPTANCE N --

PARAMETtR CRITERIA DATA

4. R

_CS HEAT REMOVAL Condition 1 - Steam Generator Heat Removal

a. RCS Tavg a. < 570*F*

(C04)

b. Steam Generator Level D.

and Feed Flow (C05)

(One S/G may be 1. 10-80% A isolated and out and B e of spec.) Trending A to 70 B _

- 80%

(') 2E

\s_) 11. Feed A flow B

c. CST level (C05) c.
i. > 70%*

SI

11. Action being taken to restore level t

t OPS Form 2540-1 Rev 4 Page 6 of 13 AUG 0 31389

ACCEPTANCE k-s- PARAMETER CRITERIA DATA

4. 'RCS HEAT REMOVAL (cont)

Condition 2 - ECCS Heat Removal

a. Incore Thermo- a.

couple (INTAMY 1. < 800*F*

or ICC cabinets)

b. S'IS Flow b. Acceptable (C01) per Figure 1
c. Charging Flow c. When a (CO2) suction .

source exists, all available pumps operating Condition 3 - Once Through Cooling

a. Incore a. decreasing _ , _ _

Thermocouple (INTAMX or ICC cabinets)

b. SIS Flow b. Acceptable (C01) per Figure 1
c. Charging Flow c. All (CO2) available

. pumps operating.

2I SRAS

d. PORVs (C03) d. Open
e. Pressurizer e. < 1100 psia"

_/ Pressure (C03)

OPS Form 2540-1 Rev, 4 Page 7 of 13 f.'.*0 01 1:45

ACCEPTANCE PARAMETER CRITERIA DATA

5. CONTAINMENT INTEGRITY Condition 1 - No Break Inside Containment
a. Containment Pressure a. < 2 psig*

(C01)

b. Containment rad b. less than _ _ _ _

monitors (C101 ) alarm setpoint

c. Containment H c. < 2%*

2 Concentration (if in service)

(C101) .

d. SJAE, Blowdown and d. Less than , _ _

Main Steam Line alarm Rad Monitors setpoint (RCl4, RCOSE)

I i Condition 2 - Break in Containment

a. Containment Pressure a. -

(C012 1. < 5 psig*

RI fi. If > 5 psig, Then SIAS, CIAS and EBFAS and iii. If > 27 psig Then CSAS

b. Containment H 2 b. If > 2%,

Concentration Then H 2

(C101) Recombiners operating

c. Steam jet air c. Less than ____ ____

' '~N ejectors and blow- alarm setpoint

'; down rad monitors (RC14)

OPS Form 2540-1 Rev. 4 Page 8 of 13 N!r: o 3 1?S8 ,

ACCEPTANCE (V) PARAMETER CRITERIA DATA

6. VITAL AUXILIARIES
a. Buses, 24C or a. Energized 240 (C08)
6. 125VOC Buses, b. Energized .___

201A or 2018 (C08)

c. Instrument Air c. > 90 psig Pressure (C06) ,

i 4

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Rev. 4 l

I Page 9 of 13 I

AUG 0 31988  ;

1300.- 3 1200 E k. n-

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a - - - =  : ---- - - -- --- --- = ,

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= =

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~ - - d-~" ~ '~ --' ---- '-- - -- ~~ - -'-- --- i.

200" y - - --- -- - .. - . ' -. --, - -

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t iiiiii, , N ==. ', =

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100 --

yt4 ACC.EPTA.3LE REGION

- - ~7 g---- -

-g .. . , ..

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    • e, * *E =, a,* a. .,-

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g ___

000 1600 2400 3200 4000 0

TOTAL OF FOUR HPSI AND LPSI HEADER FLOWS (GPM)

NOTE 1: This curve is based on one facility operating and assumes at least one charging pump is operating.

NOTE 2: I_f containment pressure has exceeded 5 psig at any time during an event, then do not use this curve. Its accuracy is in doubt. -

When determining Safety Function status, consider the safety function satisfied if all other, safety function parameters meet their criteria.

NOTE 3: The curve applies to the pre-SRAS condition only.

MINIMUM REQUIRED SAFETY INJECTION DELIVERY CURVE OPS Form 2540-1 FIGURE 1 Rev. 4 Page 10 of 13 ,

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2500 -

f- . hot / ,

Q - ACCEPTABLE -f '

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2000 . , f .

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0 200 300 400 500 600 RCSTEMPERATURE(F)

  • This curve supercedes the 100F/HR cooldown curve any time the RCS has experienced an uncontrolled cooldown to below 500F.
    • This curve supercedes the 30F subcooling curve if, at any time, the O- containment pressure has exceeded 5 psig.

RCS PRESSURE /TEMPERATUER LIMITS OPS Form 2540-1 FIGURE 2 Rev. 4 Page 11 of 13 AUG 0 31369

RCS PRESSURE / TEMPERATURE LIMIT DATA PTS LIMIT 100*F/HR 30*F DEGRADED 200'F COOLDOW SUBC00LE0 CTMT SUBC00LE0 CURVE RCS SATURATION MINIMUM MINIMUM MAXIMUM MAXIMUM TEMP PRESSURE PRESSURE PRESSURE PRES 5URE PRES 5URE

(*F) (psia) (psia) (psta) (psia) (pais) 600 1543 1919 1919 Upper Limit cf 595 1487 1852 1852 2350 590 1432 1787 1787 585 1378 1723 1723 580 1326 1662 1662 595 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 Ill7 535 924 1180 1180 530 885 1133 1133 .

525 848 1089 1089 520 813 1045 1045 '

O 515 510 505 778 744 712 1003 963 924 1003 963 924 500 681 885 885 495 650 848 848 490 621 813 813 485 593 773 773 480 b66 744 744 475 540 712 712 470 515 681 667 465 490 650 657 U 460 467 621 633 2350 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 4 f.3 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 OPS Form 2540-1 Rev. 4 Page 12 of 13

l. . ; 0 0 DCS

RCS PRESSURE / TEMPERATURE LIMIT DATA (Continued)

O PTS LIMIT 100*F/HR 30*F DEGRADED 200*F COOLDOWN SUSC00 LED CTMT SUSC00 LED CURVE RCS SATURATION MINIMUM MINIMUM MXIMUM MAXIMUM TEMP PRESSURE PRESSURE PRESSURE PRESSURE PRESSURE

("F) (psia), (psis) (psia) (psia) (psia) 395 233 326 392 1487 Upper Limit 390 220 309 378 1432 of 2350 385 208 292 366 1378 380 196 277 353 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 1089 350 135 196 289 1045 '

345 126 184 281 1003 ,

340 118 173 275 963 335 110 163 265 924 330 103 153 256 885 325 96 144 251 848 320 90 135 242 813 315 84 126 236 778 310 78 118 230 744 s 305 72 110 224 712 300 67 103 219 681 395 62 96 214 650 C 290 58 90 210 621 2230 285 53 84 205 593 2100 280 49 78 202 566 1970 275 45 72 198 540 1855 270 42 67 196 515 1730 265 39 62 192 490 1620 260 35 58 190 467 1530 255 32 53 188 434 1450 250 30 49 184 423 1370 245 27 402 1300

_" t o 25 382 1230 235 23 362 1170 230 21 344 1100 225 19 -

326 1040 220 17 309 980 215 16 292 930 210 14 277 880 205 13 262 840 200 12 247 800 O

OPS Form 2540-1 Rev. 4 Page 13 of 13 AUG 03 G23

(

1300  ; 3 1

1200< (; ----- = l g  ; -

~

7 -

n- _

~ ~ ~

y ~

1100< -_ = =

b

r _

1000< - . l.

=

q g.n m,

-- 4 4 -.

m.dsI

--' , i

~

-84 4 7

=.,mm., , ,

= , = 2 = --- -

ggg g - . - - 'm -

;  ; '---m -.=-- .e -.--- = - -

E

- =  : .,  ; _

U 'c "

- ,-- =4.a.e.,- 4 __" - " -'
=W-e,g - -

Z 4 7 4 N

'700

-y- , , , Hni - -

m . --,,

M -- -

M 400 < - '- --. = ACCEPTM1J: MGICM = -

= ,

=

s -' -

s .

2 2 " '

5:0 <

M,,, 3

, = --_. --

3 .w - 2  : = 2

. 2  : , -4

- .= - : ,

8 e, g.g 7 e,ae'.--

., -gg

.geqq .ggg 400< =  :

E ,

_ --- --- = , =

= - ---

M  :

z -

7 .4 en,g .,- -=e4 e, .-' -  : Z _.

h -.

)gg ,

a ; _ -

,= -

- 2 , - __. _

} = ,= -- -

=

. _=. . , _ _- '

- = = -. - -

= -

~ -- --- - - " ~

--- --' - - -- -'- --- - -- ' '-'---- - =

200 "

g.q, ,- --. -- --- - - --- -

j j , - =  : -- ----- --- .

--7 ,,,,,,, g% 7 ,

-' 4- J 100- ---- WACCIPTMLE ECION = = =

N---N -

H-

~

- ---- - --- - - -- - ,-.- - J. --. ,

. - -- - ., - - . 3. -, .

- - - .L -_-.-

f- H - , _; ., _ --;-----,[- ,

l J.- - ~ ,-.,

y --.-

o 300 1500 2400 3200 4000 TOTAL OF FOUR HPSI AND LPSI HEADER FLOWS (GPM)

NOTE 1: This curve is based on one facility operating and assumes at l least one charging pump is operating.

NOTE 2: H containment pressure has exceeded 5 psig at any time during an event, then do not use this curve. Its accuracy is in doubt.

When determining Safety Function status, consider the safety function satisfied if all other, safety function parameters meet their criteria.  ;

NOTE 3: The curve applies to the pre-SRAS condition only, t

MINIMUM REQUIRED SAFETY INJECTION DELIVERY CURVE OPS Form 2540-1 FIGURE 1 Rev. 4 Page 10 of 13

- - _ . _ - - ____ _. _ _ , . _ _ _ _ . _ ..,, ._ n 3 _ .3 .n

2500

. i I

' \

(~') .._ ~N oT -

'q) - /CCE PTABLE '

b i l ,

/ AcceruaLE 2000 l [ .

-j l '1b ,

6 ff t ju

,r -.

i t  ? -

? ] 5 ~~~'

E50^' #o}' # /

w '

' ! c' -

f

/

i .. L

'I .o >

$ l' f f /

e id "

  1. /-1 .

E I

,f '. L f

=

y . >

< ./ /

/.

/

s "

i' 6 51000- / /

w $ /

] n. ,

[V . f / >/

. ./ . .. _ .

-- ~

s. J '. '.t_.4 _.._ _._

500 - - - d-_ -- -< .- - - -.

s e '

, NOT AC.c.uTA BLE - -

g5 l l go o  !

/,/ -

n -~-

r rd.-

.u..u,__

< oe l 4

.. p 90f peM LV ---

~

4 l

i

w. g I 4 '

. 4 y}.;. ....

g j . .i. .

e _

.. l

_. g .p_

200 300 400 500 600 RCSTEMPERATURE(F)

  • This curve supercedes the 100F/HR cooldown curve any time the RCS has experienced an uncontrolled cooldown to below 500F.
    • This curve supercedes the 30F subcooling curve if, at any time, the d containment pressure has exceeded 5 psig.

RCS PRESSURE /TEMPERATUER LIMITS OPS Form 2540-1 FIGURE 2 Rev. 4 Pege 11 of 13 AUG 0 31988

RCS PRESSURE / TEMPERATURE LIMIT DATA PTS LIMIT 100'F/HR 30*F DEGRADED 200'F C00LDOWN SU9C00 LED CTMT SU8C00 LED CURVE RCS SATURN TION MINIMUM MINIMUM MAXIMUM MAXIMUM TEMP PRESSURE PRESSURE PRES $URE PRESSURE PRESSURE

(*F) (psia) (psia) (psia) (psia) (psia) 600 1543 1919 1939 -

595 1487 EE*" '#

1852 1852 590 1432 1787 1787 585 1378 1723 1723 580 1326 1662 1662 595 1276 1602 1602 570 1227 1543 1543 565 1180 1487 1487 560 1133 1432 1432 555 1089 1373 1376 550 1045 1326 1326

  • 545 1003 1276 1276 2 8 1 9 9 0!!!505 712 924 924 500 681 885 885 495 650 848 848 490 621 813 813 485 593 773 773 480 566 744 74 475 540 712 712 470 515 681 687 465 490 650 657 y 455 450 423 4 h 566 633 2350 286 08 445 402 540 Ii 4 44 47

!!! j  ::: l'!!

!!!  !!! l!l  !!!  !!!! m 1602 400 247 344 406 1543 OPS Form 2540-1 Rev, 4 Page 12 of 13

,'.; y J 1303

RCS PRESSURE / TEMPERATURE LIMIT DATA (Continued)

PTS LIMIT 100*F/HR 30*F DEGRA0ED 200'F C00LDOWN SUSC00 LED CTMT SUSC00 LED CURVE ACS SATURATION MINIMUM MINIMUM MAXIMUM MAXIMUM TEMP PRESSURE PRESSURE PRESSURE PRESSURE PRESSURE

('F) (psia) (psia) (psia) (psia) (psfa) h5 2 3 3 ~'~ 326 392 1487 Upper Limit 390 220 .i09 '

378 1432 of 2350 385 20* U2 366 1378 380 196 277 353 1326 375 - 1;/ ~~~ 262 340 1276 370 1"; 247 329 1227 365 .N A13 319 1180 36's 210 309 1133 E' . 44 TOV 299 1089 356 35 19G 289 1045 . '.

345 ;26 184 281 1003 -

340 ;8 173 275 963 E3~ ~ ~h 0 ~~~~ 16 3 265 924 3J0 N3 151 256 845 315 36 144 251 848 320 90 135 242 813

(

v) 315 310 JT-~

4 126 118 236 230 778 744 3')5 12 110 224 712 300 67 103 219 681 395 62 96 214 650 0 290 58 90 210 621 2230 285 53 84 205 593 2100 280 . , _ _4 9 _

78 202 566 1970 275 __ 45 72 198 540 1850 270 12 67 196 515 1730 265 39 62 192 490 1620 260 ~

35 58 190 467 1530 255 32 53 188 434 1450 250 30 49 164 423 1370 245 27 402 1300 240 ti 382 1230 235 11 362 1170 230 21 344 1100 225 19 -

326 1040 220 17 309 980 215 16 292 930 210 14 277 880 205 13 262 840 200 12 247 800 O

OPS Form 2540-1 Rev. 4 Page 13 of 13 At]G 0 31383

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