ML20205A687

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Rev 2 to Emergency Operating Procedure EOP 2540E, Functional Recovery of Containment Integrity
ML20205A687
Person / Time
Site: Millstone, Haddam Neck, 05000000
Issue date: 06/20/1986
From: Mooney D
CONNECTICUT YANKEE ATOMIC POWER CO.
To:
Shared Package
ML20204H467 List: ... further results
References
EOP-2540E, NUDOCS 8810260066
Download: ML20205A687 (11)
v • d • e


Text

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W. D. Rombito 3-11-86 86-9 Form Approved by Station Superintendent Effective Date 50RC Mtg. No.

n STATION PROCEDURE COVER SHEET A. IDENTIFICATION

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Number E0P 2540E Rev.

Title FUNCTIONAL RECOVERY OF CONTAINMENT INTEGRITY Prepared By D. MOONEY

8. REVIEW I have reviewed the above procedure and have found it to be satisfactory.

TITLE SIGNATURE DATE DEPARTMENT HEAD A 5 / 86

1. c. a O 4AL -

y deu C. UNREVIEWED' SAFETY QUESTION EVALUATION DOCUMENTATION REQUIRED:

(Significant change in procedure method or scope YES [ ] NO[i as described in FSAR)

(If yes, document in PORC/50RC meeting minutes)

O V ENVIRONMENTAL IMPACT (Adverse environmental impact) YES [ ] NO ((

(If yes, document in PORC/SORC meeting minutes)

D. INTEGRATED SAFETY REVIEW REQUIRED (Affects response of Safety Systems, performance YES [ ] NO ((

of safety-relat6d control systems or performance of control systems which may indirectly affect safety system response.)

(If yes, document in PORC/SORC meeting minutes.)

E. PROCEDURE REQUIRES PORC/SORC REVIEW YES [ [ NO [ ]

F. SAFETY EVALUATION REQUIRED YES [ ] NO((

G. PORC/SORC APPROVAL PORC/50RC Meeting Number 2.- M-47 __

H. APPROVAL AND IMPLEMENTATION The attached procedure is hereby approved, and effective on the date below:

0bln MU $WN Stati6n/ Service / Unit Superintendent Effective Date SF 301 Rev. 8 age 1 of 1 0010260066 001007 PDR ADOCK 05000213 P PDR

FUNCTIONAL RECOVERY OF CONTAINMENT INTEGRITY Page No. Eff. Rev.

1-10 2 O i t

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E0P 2540E Page 1 Rev. 2

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.- t FUNCTIONAL RECOVERY OF CONTAINMENT INTEGRITY I f

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1. PURPOSE i L

l To provide a procedure to establish containment integrity during an accident  !

condition. This is accomplished by containment isolasion, control of i pressure and temperature, and control of combustible gas.

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2. ENTRY CONDITIONS  !

Functional Recovery, E0P 2540, indicates that Containment Integrity is not

, being satisfied. .

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! E0P 2540E Page 2 l Rev. 2 l

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e FUNCTIONAL RECOVERY OF CONTAINMENT INTEGRITY

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3. OPERATOR ACTIONS ,

Instructions Contingency Actions CAUTION Do not leave this procedure until Containment Integrity is satisfied.

Other safety function (s) may be pursued concurrently.

3.1 Determine, based on present plant 3.1 conditions, which success path (s) ,

are required to satisfy contain-ment integrity requirements (Refer to Figure 4.1). Do the following

a. a. Continue with this O procedure
1. Shift containment air recirc fans to slow speed (C01)
11. Open containment air recirc fans emergency outlet valves (C01) iii. Place hydrogen concentration 111. Cirect Chemistry to monitor in operation per sample containment OP 2313C
b. Go to step 3.2 b. Not applicable O

E0P 2540E Page 3 Rev. 2

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Instructions Contingency Actions

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Containment Isolation

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CAUTION Local radiation levels should be determined before attempting any local valve manipulations.

l 3.2 Ensure Containment Isolation 3.2 Do the following

a. E containment pressure a.

increases to 5 psig, Then i., Manually initiate verify SIAS, CIAS and EBFAS CIAS (C01)  !

(C01X) ii. Remotely close

Refer to OPS Form 2540E-1 iii. Manually isolate valves (local)

b. Go to step 3.3 b. Not applicable O

E0P 2540E Page 4 Rev. 2

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i Instructions Continaency Actions

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, Containment Temperature and Pressure Control 3.3 Ensure Containment pressure 3.3 [

2nd temperature control (Refer to Figure 4.2).

Do the following '

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a. E containment pressure a. Manually initiate greater than 27 psig, Then CSAS (C01) i verify CSAS (C01X) by
1. Two containment spray header flows greater ,

than 1350 gpa (C01) i 10$

11. Suction from RWST with level greater than i 10%, or from containment sump (C01) [

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b. When containment pressure is b. E containment pressure less than 10 psig, Then do subsequently increases to i t

j the following 27 psig, Then restart {

l 1. Reset containment spray containment spray (or r l actuation modules verify automatic  !

11. Stop the containment spray actuation) (C01) f pumps  ;

j iii. Realign for automatic

) operation I

c. Go to step 3.4 c. Not applicable i .

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!O E0P 2540E Page 5  :

Rev. 2 i

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., 1

- 1 1

Instructions Continaency Actions

{)s Combustible Gas Control i

3.4 Ensure containment combustible 3.4 gas control (Refer to Figure ,

4.3)  ;

w. E hydrogen concentration a.

in containment reaches 2%,

Then

1. Start post incident 1. Start containment recirculation fans auxiliary recircu-lation fans (C01)
11. Operate hydrogen recombinars 11 Continue with this per Containment Post- procedure Incident H Control, 2

OP 2313C O b. EH concentration 2

reaches 3%, b. Contir.ue with this Then, initiate hydrogen purge procedure through EBFS per containment Post-Incident H Control, 2

OP 23130

c. c. Not applicable
i. Go to next safety function not satisfied. (Refer tc, OPS Form 2540-1) 9.E
11. E all safety functions are satisfied, Then g' to E0P 2540, step 3.10 O

E0P 2540E Page 6 Rev. 2

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4. . FIGURES 4.1 Containment Integrity Success Paths 4.2 Containment Temperature and Pressure Control 4.3 Containment Combustible Gas Control G8:jlc/sm

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! E0P 2540E Page 7 '

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O FIGURE 4.1 CONTAINMENT INTEGRITY SUCCESS PATHS SUCCESS METHOD STEP FIGURE l

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PATH _

Containment Auto or Manual 3.2 -

Isolation Containment (

Isolation l i

Containment Containment Spray 3.3 4.2 Pressure and or l Temperature CAR Fans e Control l

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i Combustible Hydrogen Recombiners 3.4 4.3 I Gas or Control Hydrogen Purge I l

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E0P 2540E Page 8 Rev. 2

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CONTAINMENT TEMPERATURE AND PRESSURE CONTROL Figure 4.2 r m, y . E A SA1TDOWN CCOUNG

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EAT EXCHANGERS T

RWST 7 N t ~

WL'KS A B o

y COMTAINMENT SPRAV PUMPS .

6 'EI CCNTAl%EMT l

'A' CDFAINMENT SPRAY ISO ATON Spa.s/150umoN

" h h yALyr

.u. @, - - ,Q ---- .

nsecw

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__A cea anns l . So--

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-Go- -Go-pp --A do--

SNP COVTAtN).'alf" . SUMP MET C ( /

v4.vts e 3 EOP 2S40E page 9 Rev. 2

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'. t CONTAINMENT COMBUSTIBLE GAS CONTROL Figure 4.3 Hg ECOMBW NvW't -

MNVL. _

l 44 l l l-EBF5 EBTS ,

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'A' P)R TPIR FAN FAN i

4 H2RECOMBINER m'

NWVL .

NVW"L _

CONTAINMENT i

l EOP 2540E page 10 Rev. 2 4

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