ML20128N068

Revised Emergency Operating Procedures,Including Rev 5 to Att-10.0, Attachment Faulted S/G & Rev 6 to Att-16.0, Attachment Ruptured S/G

ML20128N068
Person / Time
Site:	Ginna
Issue date:	10/03/1996
From:	Whits T ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17264A686	List: ML20128N068
References
PROC-961003, NUDOCS 9610160282
Download: ML20128N068 (5)

Text

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O l EC': '

REV: 5

.ATT-10.0 ATTACHMENT FAULTED S/G PAGE 1 of 2 Responsible Manager WA4 ! t Date /d-3-$

/

Dispatch AO with locked valve key to complete local isolation of faulted S/G as follows:

NQTE: Intermediate Building environment should be assessed for radiological I or other personnel safety concerns.

-1. Request identification of faulted S/G from Control Room.

NOTE: Steps may be done in any order, ,

1

2. Verify faulted S/G MSIV bypass valve closed (INT BLDG steam header area) o S/G A, V-3615

-O R-o S/G B, V-3614

3. Isolate steamlines for the faulted S/G:

o Steam sampling system (INT BLDG steam header area) o S/G A, close V 3413A O R-0 S/G B, close V-3412A o Support heating steam (INT BLDG steam header area) o S/G A, close V-3669 O R-0 S/G B, close V 3668 o Upstream trap'3 (TURB BLDG east of MFW regulating valves) o S/G A, close V-3521 OR-0 S/G B, close V 3520 9610160282 961003 PDR ADOCK 05000244 Y PDR

. goes ritLE:

REV: 5 - 1 i '

ATTACHMENT FAULTED S/G I

$TT-10.0

- PAGE 2 of 2 O ..............................................................

CAUTION CONTROL ROOM SHOULD BE NOTIFIED BEFORE ISOLATING TDAFW PUMP l STEAM OR FEED FLOW.

4. '..,cally CLOSE TDAFW pump steam root valves o S/G A, V-3505

-O R-0 S/G B, V-3504

5. Locally close TDAFW pump feed header isolation valve for affected S/G:

o S/G A, V-4005 (steam header west end on catwalk by CNMT wall)

I -O R-0 S/G B, V-4006 (Main steam header east end by stairs)

6. Locally close MFW regulating valve and bypass valve outlet isolation valves for the faulted S/G:

o S/G A, V-3987 and V ,991

-O R-o S/G B, V-3986 and V-3990

k3 l

. go : rirtt: l REVi 6

'ATT-16.0 ATTACHMENT RUPTURED S/G PAGE 1 of 3 O

Responsible Manager Lov/[L J Date /d-3-9/,

/ ,

1 NOTE: Intermediate Building environment should be assessed for radiological  ;

and other personnel safety concerns.

PART A. Dispatch AO with locked valve key to complete localisolation of l ruptured S/G as follows:

l NOTE: Steps may be done in any order for PART A.

l CAUTION l CONTROL ROOM SHOULD BE NOTIFIED BEFORE ISOLATING TDAFW PUMP l STEAM OR FEED FLOW.

1) Verify BOTH S/G MSIV bypass valves closed (INT BLDG steam header area):

o S/G A, V-3615 o S/G B, V-3614 l

l 2) Locally close TDAFW pump steam root valves o S/G A, V-3505

-O R-O S/G B, V 3504 l 3) Locally close the following steam valves from the ruptured S/G:

l o Steam to sampling system valve (INT BLDG steam header area):

S/G A, close V-3413A O R-S/G B, close V 3412A l

l 0 Support heating steam valve (INT BLDG steam header area):

I S/G A, close V 3669

-O R-

>0 s'o 8.ci v see8 l

• EOP: ilfLE  ;

' REV: 6 i

$TT-16.0 i

ATTACHMENT RUPTURED S/G PAGE 2 of 3  ;

f~

\ o Upstream trap isolation valve (TURB BLDG near MFW reg vivs):

S/G A, close V-3521

-O R-S/G B, close V 3520

4) Locally close TDAFW pump manual feedwater isolation valve to ruptured S/G (INT BLDG steam header area):

S/G A, V 4005

-O R-S/G B, V-4006  ;

k

5) Bypass condensate polishing demineralizers as follows:

1

1. Place AVT bypass valve controller in MANUAL (east end of AVT  :

panel). I

2. Open bypass valve.

3. Isolate _A.LLiinservice demineralizers as follows:

a) Place the Mixed Bed Service Selector switch to override AND select the bed to be removed from service. j b) Place the 4 position selector switch for the selected bed to OFF. l c) Repeat steps a and b for each inservice bed.

]

i

6) Locally place TURB RM WALL EXH FAN switches to CLOSE.  !

7) Locally place TURB RM ROOF VENT switches to CLOSE.

.............................................................. l CAUTION  ;

l PART B OF THIS ATTACHMENT SHOULD ONLY BE PERFORMED IF RUPTURED S/G MSIV CANNOT BE CLOSED.

)

.............................................................. 1 PART B. Dispatch AO to locally perform the following when ruptured S/G MSIV cannot be closed, if areas are accessible: l l

1) Close Air Ejector / Gland steam root valve, V-3540 (Main steam header TURB j BLOG).

2) Close flange heating isolation valves, MOV-3601 A and MOV 3602A.

, ., tops ilfLE:

REW 6 ATT-16.0 -

ATTACHMENT RUPTURED S/G

. PAGE 3 of 3 l

\ 3) Notify Control Room that main flowpaths are isolated, THEN complete isolation by closing the following valves:

NOTE: Substeps may be done in any order.

a) MFW regulating valve and bypass valve manualisolation valves for both S/Gs:

o S/G A, V-3985 and V-3989 l o S/G B, V-3984 and V-3988 l b) Reheat steam chain valves: l l

l 0 1 A MSR, V-3551 l 0 18 MSR, V-3550 0 2A MSR, V-3553 ,

o 28 MSR, V-3552 l c) Steam dump header isolation and bypass valves (Main steam header l TURB BLDG on platform overhead) o V-3532 and V-3659 o V-3533 and V-3658 d) Reheat steamline warmup valves (warmup vivs located east end of 1 A

, and 2A MSRs TURB BLDG middle floor):

l o V-3645 o V-3646 o V 3647 o V-3648 e) Reheat steamline common vent, V-8500 (at condenser north of 1 A l MSR).

l f) Steam to trap header isolation valves o V-8513 (Main steam header TURB BLDG) o V-8529 (south side EH skid) o V-8510 (south side EH skid) s l

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