ML072950298
| ML072950298 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 05/09/2007 |
| From: | Tennessee Valley Authority |
| To: | NRC/RGN-II |
| References | |
| 50-327/07-301, 50-328/07-301 | |
| Download: ML072950298 (129) | |
Text
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I SQN TRANSFER TO HOT LEG RECIRCULATION ES-1.4
( Rev. 5
\. I L- I..-.-- --L. ----J ISTE~ [ACTION/EXPECTED RESPONSE IIRESPONSE NOT OBTAINED
- 17. ISOLATE SI pump flow to cold legs :
- a. CHECK BOTH 81 pumps ALIGNED a. PERFORM the following:
for hot leg recirculation.
- 1) IF one 81 pump is aligned for hot leg recirculation, THEN ENSURE 81 pump aligned to cold legs STOPPED.
- 2) GO TO Step 18.
- b. CHECK power .A VAILABLE b. DISPATCH personnel to restore power
( to SI pump cold leg injection valve FCV-63-22 .
to 81 pump cold leg injection valve FCV-63-22, USING EA-201-1 , 480 V Board Room Breaker Alignments.
WHEN power available to FCV-63-22, THEN CLOSE 81 pump cold leg injection valve FCV-63-22.
RETURN TO procedure and step in effect.
- c. CLOSE SI pump cold leg injection valve FCV-63-22.
Page 15 of 16
b
~ [ACTION/EXPECTED RESPONSE ]
TRANSFER TO HOT LEG RECIRCULATION
[RESPONSE NOT OBTAINED
~S~fJ E *4 Rev. 5
- 18. RETURN TO procedure and step in effect.
-~
END
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L ~_. . _
Page 16 of 16
JPM B.1.e Page 1 of 13 Rev. 7 SEQUOVAH NUCLEAR PLANT JOB PERFORMANCE MEASURE B.1.e JPM 36 RETURN PRESSURIZER RELIEF TANK TO NORMAL Original Signatures on File PREPAREDI REVISED BY: Date!
VALIDATED BY: Date!
APPROVED BY: Date!
(Operations Training Manager)
CONCURRED: "* Datel (Operations Representative)
- Validation not required for minor enhancements, procedure Rev changes that do not affect the JPM, or individual step changes that do not affect the flow of the JPM.
- " Operations Concurrence required for new JPMs and changes that affect the flow of the JPM (if not driven by a procedure revision).
JPM B.1 .e Page 2 of 13 Rev. 7
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NUCLEAR TRAINING REVISIONIUSAGE LOG REVISION DESCRIPTION OF V DATE PAGES PREPAREDI NUMBER REVISION AFFECTED REVISED BY:
4 Transfer from WP. Procedure change to N 8/17/94 All HJ Birch Rev. 4. Made a perform JPM, not a simulate JPM.
pen/ink Added dates to cover sheep. N 10/26/95 1 HJ Birch penlink SO~68-5 Rev chg . Minor rewording of N 9/25/96 4,8 HJ Birch step 13. Add step to monitor RCDT level.
penlink Chgd initiating cues to direct prt drain first. N 1/9/97 4 HJ Birch To help flow thru procedures. Deleted step to reset Pri Wtr alarm . It no longer comes in .
SO-68-5 Rev chg N 11/17/97 4 HJ .Birch pen/ink SO-68-5 Rev chg . Added transition step N 5/12/98 4-9 HJ Birch to sect 8.2 . Several step enhancements.
( 5 Rev ised steps , 7 and 18, added step 19 N 9/18/98 All JP Kearney as a result of revisions to SO-68-5.
Changes did not affect the flow of the JPM. Revised JAITA task numbers.
Revised KIA ratings. Reformatted crit ical steps.
pen/ink SO-68-5 Rev chg . Correct typo in N 8/21/00 4 SR Taylor Direction to trainee penlink SO-68 -5 Rev chg only no effect N 12/13/00 4 W . R. Ramsey 6 Incorporated pen/ink changes N 8/22/02 4 J P Kearney
, Pen/ink Updated references & IC# N 11/17/03 2,4 T. E. Pitchford 7 Updated references. Minor format N 2/09/07 2,4 R. H. Evans changes.
v - Specify if the JPM change will require another Validation (Y or N).
See cover sheet for criteria.
JPM 8.1 .e Page 3 of 13 Rev. 7 SEQUOY AH NUCLEAR PLANT r ROISRO
\
JOB PERFORMANCE MEASURE Task:
Pzr Vapor Space Accident (Return PRT to Normal)
JAITA task # : 0070040101 0070050101 0680990101 (RO) 0070010102 (SRO)
KIA Ratings:
008AA1.08 (3.8/3.8) 007K4.01 (2.6/2 .9) 007A2.01 (3.9/4 .2) 007A2.02 (2.6/3.2)
Task Standard:
Pressurizer Relief Tank (PRT) parameters have been returned to within normal ranges ;
temperature G:.1550F} , pressure (1.5 - 6.5 psi), and level (-70%).
Evaluation Method: Simulator X In-Plant _
==~================================ === =============== =========;==========--=======
Performer:
NAME Start Time _
Performance Rating: SAT _ _ UNSAT _ _ Perlormance Time _ _ Finish Time _
( = ~:= ;=====================================--========= =======~=======================
Evaluator:
SIGNATURE DATE COMMENTS i
lv
JPM B.1.e Page 4 of 13 Rev. 7 SPECIAL INSTRUCTIONS TO EVALUATOR:
( 1. Sequenced steps identified by an "s"
- 2. Any UNSAT requires comments
- 3. Acknowledge any associated alarms.
- 4. Initialize the simu lator in IC-96.
- 5. NOTE: This JPM has been pre-shot in IC # 96. Should IC # 96 be erased or fail to perform as expected then use the following set-up instructions:
- Initialize Simulator in IC: #16. ACTIVATE MF RC05 at 5% to cause PCV-68-334 to leak through .
- Allow PORV Tailpipe temperature to increase and bring in the alarm , then close FCV-68-333.
ACTIVATE RF RCR04 to remove power from valve.
- Activate the following OVERRIDES: ZAOPI68301 10 [PRT pressure at 10 psi], ZAOTI68309 130 [PRT temperature at - 1800F], and lOR AN:OVRD[357] ON & AN:OVRD[21 09] ON
- (These will be deleted during the performance)
- Ensure FCV-81-12 is open. .
- 6. Due to time restraints CUEs for PRT level and temperature will be given at appropriate times.
Validation Time: CR. 17 mins Local _
Tools/Equipment/Procedures Needed:
. 1-80-68-5 8ection 8.2 & 8.4.
Reference Title Rev No.
1-80-68-5 Reactor Coolant System 17
=================================================================
READ TO OPERATOR Directions to Trainee:
I will explain the initial conditions, and state the task to be performed. All control room steps shall be performed for this JPM. I will provide initiating cues and reports on other actions when directed by you. When you complete the task successfully, the objective for this job performance measure will be satisfied. Ensure you indicate to me when you understand your assigned task. To indicate that you have completed your assigned task return the handout sheet I provided you.
INITIAL CONDITIONS:
Unit 1 is at 100% power, steady state. Pressurizer pressure controls in automatic.
Pressurizer sprays in automatic.
PORV PCV-68-334 is partially opened but the block valve has been closed and de-energized.
The valve is no longer leaking through.
1A Rx Coolant Drain Tank pump is inoperable.
INITIATING CUES:
You are the Unit 1 CRO and are to cool the PRT and then , if necessary, drain the PRT to within normal parameters.
Notify the US when the PRT parameters have been returned to the normal conditions.
JPM 8.1.e Page 5 of 13 Rev. 7 Job Performance Checklist:
( STEP/STANDARD SAT/UNSAT STEP 1.: Obtain correct procedure to return PRT parameter(s) to normal. - SAT
- UNSAT STANDARD: Operator obtains a copy of 1*S0*68*5 Sections 8.2 & 8.4. _
Start Time - -
COMMENTS:
NOTE: The operator may choose to pump the PRT level down first, start at step 5 of the JPM in that case.
NOTE: This portion is performed using Section 8.4 of the SO. - SAT STEP 2.: [1] ENSURE [FCV-81-12] OPEN. - UNSAT STANDARD: Operator verifies that FCV*81-12 is open by red light on.
COMMENTS:
c STEP 3.: [2] OPEN [1-FCV-68-303] by placing [1-HS-68-303A] to OPEN - SAT position.
- UNSAT NOTE: When FCV-68-303 is opened, THEN delete ZAOTI68309 and AN:OVRD[21 09] Overrides Critical Step STANDARD: Operator takes hand switch HS*68*303A on M-5 to OPEN. Handswitch indicates valve is open by red light "ON". This step is critical to add primary water to the PRT for cooling.
COMMENTS:
JPM B.1.e Page 6 of 13 Rev. 7 Job Perfo rmance Checklist:
( STEP/STANDARD SAT/U NSAT STEP 4.: [3] IF PRT level increases to ? 88% or PRT temperature decreases to - SAT s 1200F THEN
_ UNSAT CLOSE [1-FCV-S8-303]
Cue: PRT level is 91 %. Critical Step PRT temp is as indicated.
STANDARD: Operat or monitors PRT level on U 300 and temperature on TI-68-309, then places FCV-68-303 in the closed position and verifies green light ON. This step is crit ic al t o prevent overfilling the PRT.
COMM ENTS:
ST EP 5.: [4] IF PRT level is :2: 88% THEN - SAT GO TO section 8.2 or 8.3 of this instruction, AND - UNSAT RETURN to step [1] of this section if further temperature reduction is needed.
STANDARD: Operator goes to section 8.2 (1A RCDT pump is inop)
COMM ENTS :
EVALUATOR NOTE The Iollowlno step evaluate section 8.2 STEP 6.: [1] VERIFY RCDT pumps aligned for service in accordance with - SAT valve check list 1-77-1.02.
- UNSAT Cue: NO devia tions.
STANDARD: Operator checks status log to ensure no deviations exist.
COMM ENTS :
I
JPM B.1 .e Page 7 of 13 Rev. 7 Job Performance Checklist:
( STEPISTANDARD SAT/UNSAT STEP 7.: [2] STAT ION AUO at panel 0-L-2 . - SAT Cue: Role play the Rad Waste AUO. State that you are at O-L-2 - UNSAT panel and will stay here and wait on your instructions.
STANDARD Operator ensures an AUO is stationed at 0-L-2 panel.
COMMENTS:
STEP .a,: [3] IF RCDT level >20%, THEN - SAT PUMP down RCDT level in accordance with Appendi x C of this - UNSAT Instruction.
Cue: Role play the Rad Waste AUO. State that you are at O-L-2 panel and the level in Unit 1 RCDT is 18%.
STAN DARD: Operator checks with an AUO at 0-L-2 panel and ensures level is
<20%
CO MMENTS:
STEP 9.: [4] ENSURE [1- FCV-77-91and [1-FCV-77-10] are OPEN . - SAT
- UNSAT STANDARD : Operator verifies FCV-77 -9 and FCV-77-10 open on panel M-15 (red iights on handswitches ON)
COMMENTS:
JP M B.1.e Page 8 of 13 Rev. 7 Job Performance Check list:
( STEP/STANDARD SATIUNSAT STEP 10.: [5] ENSURE [1-HS-n-6Al for RCDT Pump B is in the PULL*P-AUTO - SAT position.
- UNSAT Cue: Rad was te Operator informs UO that RCDr Pump "B" is in p-AUrO and that the level in the Unit 1 RCDr Is s tIl/18%.
STANDARD: Operator contacts Rad Wa ste Operator and verifies HS-77-6A for RCDT Pump B is in P-AUTO.
COMMENTS:
STEP 11.: [6] OPEN [1- FCV-68-305l Nitrogen Supply to PRT. - SAT
- UNSAT STANDARD : Operator verifies FCV-68-305 open on panel 1 M-5 (red lights on handswitches ON). This step is critical to align Nitrogen to the PRT. Critical Step
( COMMENTS :
STEP 12.: [7] PLACE [1-HS-68-310A] in the OPEN position, AND - SAT VERIFY [1-FCV-68-310] OPENS - UNSAT Cue : When operator opens FCV-68*31 0 and the operator contacts the Crillcal Step Rad Waste operator, then state to the operator the B RCDr pump has started.
STANDA RD: Operator ensures FCV*68*310 open on panel l-M-5, red light. This step is critical to drain the PRT to normal level.
COMMENTS:
(
JP M B.1.e Page 9 of 13 Rev. 7 Job Perfo rmance Checklist:
( STEP/STANDARD SAT/UNSAT STEP 13.: [8] ENSURE RCDT Pump B STARTS . - SAT
- UNSAT Cue: RCDr pump B is running.
STANDARD : Operator checks with Rad W aste AUO to ensure RCDT pump B starts .
COMMENTS :
ST EP 14.: [9] IF PRT pressure drops < 1.5 psig, THEN ... - SAT
- UNSAT NOTE : 30 seconds after FCV*68*310 is open, DELETE ZAOPI68301 &
AN:OVRD[357}
Cue : PRr pressure is constant - 6.5 psig. "
( ST.ll,NDA RD: Operator monitors PRT pressure with PI*68*301 on 1*M-5.
I COMM ENTS:
STEP 15.: [10] IF at any time while pumping down the PRT the RCDT level approaches - SAT 50%, THEN ..
- UNSAT Cu e: When AUO contacted, Sta te: I will monitor RCDr level, Stop RCDr pump and notify you to close FCV*68*310 if RCDr approaches 50%.
STANDARD: Operator notifies AUO of this step.
COMMENTS :
(
JPM B.1.e Page 10 of 13 Rev. 7 Job Performance Checklist
( STEP/STANDARD SAT/UNSAT STEP 16.: [11] IF returning from Appendix C, THEN - SAT
- UNSAT STANDARD : Operator N/A's step.
CQMMENTS:
STEP 17.: [12] WHEN PRT level reaches desired level, THEN - SAT STOP "B" RCDT. - UNSAT Cue: When the operator begins to monitor level on LI-68-300, Tell the Critical Step operator that "PRT level has decreased to 70%",
Cue: When operator requests AVO to stop RCDT pump 1B, Tell him "RCDT pump 1B is stopped and HS is in Pull-P-Auto".
STAN_DARD: Operator verifies level, and has the Rad Waste Operator STOP RCDT Pump 1B and place HS in Pull*P*Auto. This step is critical to prevent pumping down PRT to below normal level.
COMMENTS:
JP M B.1.e Page 11 of 13 Rev. 7 Job Perlo rmance Checklist:
( STEP/ST ANDARD SATIUNSAT STEP 18.: [13] CLOSE [1-FCV-68-310] . - SAT
- UNSAT 9!£: If operator asks, PRT Level Is 70%, Temp Is 110"F, and Press Is 6.5 pslg.
Cr itical Step STAN DARD : Operator closes with HS-68-3 10A and verifies ciosed on paneI1-M-5 (green lights on handswitches ON). This step Is critical to return system to normal alignment.
COMM ENTS :
ST EP 19.: [14] PLACE [1-HS-77-6AJ RCDT pump B in PULL-P-AUTO position _ SAT at O-L-2 panel.
- UNSAT CUE: When operator requests AUO to place the HS for RCDT pump 18, Tell him "RCDT pump 18 HS Is In Pull-P-Auto ".
STANDARD: Operator has the Rad Waste Operator place HS in Pull-P-Auto.
COMMENTS:
STEP 20.: [15] CLOSE [1-FCV-68-305] . - SAT
- UNSAT STANDARD: Operator closes with HS-68-305A and verifies closed on panel 1-M-5 (green lights on handswitches ON).
COMM ENT S:
JPM B.1.e Page 12 of 13 Rev. 7 Job Performance Checklist:
( STEP/STANDARD SAT/UNSAT SAT STEP 21.: Inform the US/SRO that the PRT paramete rs have been returned to within normal operating conditions/ranges. UNSAT Stop Time _ _
STANDARD: Ope rator informs the US/SRO that the PRT parameters have been returned to within normal operating conditions/ranges.
COMMENTS:
c l
Page 13 of 13 Rev. 7
( CANDIDATE CUE SHEET (TO BE RETURNED TO EXAMINER UPON COMPLETION OF TASK)
DIRECTION TO TRAINEE:
I will explain the initial conditions, and state the task to be performed. All control room steps shall be performed for this JPM, including any required communications. I will provide initiating cues and reports on other actions when directed by you. Ensure you indicate to me when you understand your assigned task. To indicate that you have completed your assigned task return the handout sheet I provided you.
INITIAL CONDITIONS:
Unit 1 is at 100% power, steady state. Pressurizer pressure controls in automatic.
Pressurizer sprays in automatic.
PORV PCV-68-334 is partially opened but the block valve has been closed and de-energized.
The valve is no longer leaking through.
1A Rx Coolant Drain Tank pump is inoperable.
INITIATING CUES:
You are the Unit 1 CRO and are to cool the PRT and then, if necessary, drain the PRT to within normal parameters.
Notify the US when the PRT parameters have been returned to the normal conditions l
TENNESSEE VALLEY AUTHORITY SEQUOYAH NUCLEAR PLANT SYSTEM OPERATING INSTRUCTION 1-50-68-5 PRESSURIZER RELIEF TANK Revis ion 17 QUALITY RELATED PREPARED/PROOFREAD BY: JUDY VARNER RESPONSIBLE ORGANIZATION: OPERATIONS APPROVED BY: D. A. PORTER EFFECTIVE DATE: 05/09/2006 LEVEL OF USE: CONTINUOUS USE REVISION DESCRIPTION: Revised to incorporate PCF 007. Added steps in section 8.9 to allow purging PRT with either Hydrogen or Nitrogen on VCT.
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SQN 1 [ PRESSURIZER RELIEF TANK 1-S0-68-5 Rev: 17 Pag e 2 of 35 TABLE OF CONTENTS Page 1 of 2 Section Title Pag e
1.0 INTRODUCTION
4 1.1 Purpose ........................................ ............................................................... ............. 4 1.2 Scope 4
2.0 REFERENCES
4 2.1 Performance References 4 2.2 Developm ental References 5 3.0 PRECAUTIONS AND LIMITATIONS.................................. ........... ......................... ........ 5 4.0 PREREQUISITE ACTIONS 6 5.0 STARTUP/STANDBY READINESS 7 C 6.0 NORMAL OPERATION 8 7.0 SHUTDOWN 8 8.0 INFREQUENT OPERATION 9 8.1 Increa sing PRT Level .............. 9 8.2 Reducing PRT Level Using B RCDT Pump 10 8.3 Redu cing PRT Level Using A RCDT Pump .. 13 8.4 Reducing the Temperature of the PRT..................................................................... 16 8.5 Incre asing the Pressure of the PRT 17 8.6 Reducing the Pressure of the PRT ............................ ..... ....................... ................... 18 8.7 Gravity Draining PRT to the Containment Floor and Equipment Drain Sump (RBF & EDS) 19 8.8 Reducin g the O2 Co ncentration in the PRT in Mode 5 or 6 22 8.9 Purging the PRT . 23
SQN 1-S0-68-5 PRESSURIZER RELIEF TANK Rev: 17
( 1 Page 3 of 35 TABLE OF CONTENTS Page 2 of 2 Section Title Page 9.0 RECORDS 25 APPENDI X A: PRT O2 CONCENTRATION REDUCTION USING RCDT PUMP B 26 APPENDI X B: PRT O2 CONCENTRATION REDUCTION USING RCDT PUMP A 30 APPENDI X C: REDUCING LEVEL IN RCDT 34 SOURCE NOTES 35 ATTACHMENT 1: POWER CHECKLIST 1-68-5.01 ATTACHMENT 2: VALVE CHECKLIST 1-68-5.02 l
SQN 1-S0-68-5 PRESSURIZER RELIEF TANK
( 1 Rev: 17 Page 4 of 35
1.0 INTRODUCTION
1.1 Purpose To provide instructions for the operation of the Pressurizer Relief Tank (PRT).
1.2 Scope A. Placing the PRT in service .
B. Increasing the PRT level.
C. Decreasing the PRT level.
D. Reducing the temperature of the PRT.
E. Increasing the pressure of the PRT.
F. Reducing the pressure of the PRT.
G. Gravity draining PRT to the Containment Floor and Equipment Drain Sump (RBF & EDS).
H. Reducing the 0 , Concentration in the PRT in Mode 5 or 6.
I. Purging the PRT in Modes 1 thru 4.
2.0 REFERENCES
2.1 Performance References None l
1-S0-68-5 SQN PRESSURIZER RELIEF TANK Rev: 17
( 1 Page 5 of 35 2.2 Developmental References A. SOI-68.1, Reactor Coolant System B. O-MI-MXX-068-006.0, Venting of Pressurizer, Pressurizer Relief Tank, and Reactor Head C. SPP-10.3, Verification Program D. TVA Draw ing
- 1. 47W813-1
- 2. 47W819-1
- 3. 47W830- 1
- 1. Section 5.5 3.0 PRECAUTIONS AND LIMITATIONS A. During normal opera tion , PRT water temperature should not exceed 120°F.
B. Mainta ining 3 to 6 psig N, gas blanket on the PRT will prevent the formation of explosive hydrogen-oxygen mixtures .
C. The PRT concentration of oxygen shall be limited to less than or equa l to 2% by volume whenever the hydrogen concen tration excee ds 4% by volume .
D. Over filling the PRT to solid water condition during oxygen reduction pe r Section 8.8 may result in failure of the PRT rupture disc.
E. The PRT press ure shou ld be main tained < 7.5 psig during normal operation. (Except during the performance of section 8.9).
F. The PRT rupture discs are rated at 85 psig .
G . The level in the PRT shou ld be maintained at 70% . If the level increases to 88% , then decreas ing level to 70% is necessary. If the level decreases to 55%, then increasing level to 70% is needed when the PRT is required to be operable.
H. Complete ly dra ining the PRT may result in gas binding the RCDT pumps.
I. Water intrusion into the waste gas vent header is possible during PRT venting operations with PRT level high . This could affect RCP sea lleakoff flows and the vent capab ility of tanks which vent to waste gas vent header.
J. PRT level indications or alarms are not available in the Au x Control Room ,
thus PRT level manipulations and feed & bleed processes are unavailable.
~-~---~._---------------------~-----~
SQN 1-S0-68-5 PRESSURIZER RELIEF TANK Rev: 17
( 1 Page 6 of 35 Date _
4.0 PREREQUISITE ACTIONS NOTE Throughout this Instruction, where an IFITHEN statement exists , the step should be N/A if condition does not exist.
[1] ENSURE Instruction to be used ,is a copy of the effective version .
[2] ENSURE Precautions and Limitations, Section 3.0 have been reviewed.
[3] ENSURE Attachment 1, Power Checklist 1-68-5.01 is complete .
[4] ENSURE Attachment 2, Valve Checklist 1-68-5.02 is complete.
[5] VERIFY primary water is available to fill and cool the PRT (N/A if primary water will not be used).
[6] VERIFY Waste Disposal System is available to receive liquid from PRT.
Print Name Initials
[1 0] INDICATE below which performance section of this Instruction will be used and the reason for this performance:
o 5.0 STARTUP/STANDBY READINESS o 8.0 INFREQUENT OPERATION REASON : _
SQN 1-50-68-5 PRESSURIZER RELIEF TANK Rev : 17
( 1 Page 7 of 35 Date _
5.0 STARTUP/STANDBY READINESS
[1] VERIFY PRT has normal operating level of - 70%.
[2] IF PRT level needs adjusting, THEN REFER TO Section 8.1, 8.2, or 8.3, AND ADJUST level as necessary.
[3] IF PRT pressure needs adjusting, THEN REFER TO Section 8.5 or 8.6, AND ADJUST pressure as necessary.
END OF TEXT
(
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SQN 1-50-68-5 PRESSURIZER RELIEF TANK Rev: 17
( 1 Page 8 of 35 6.0 NORMAL OPERATION None.
7.0 SHUTDOWN None.
(
SQN 1-S0-68-5
- PRESSURIZER RELIEF TANK Rev: 17
( 1 Page 9 of 35 Date _
8.0 INFREQUENT OPERATION 8.1 Increasing PRT Level
[1] ENSURE a primary water pump is running.
[2] ENSURE [1-FCV-81-12] primary water con tainment isolation valve is OPEN.
[3] OPEN [1-FCV-68-303] PRT makeup valve.
[4] MAINTAIN PRT pressure between 3 and 6 psig by operating
[1-PCV-301] PRT vent valve.
NOTE Normal PRT level is appro ximately 70%,
[5] WHEN PRT level increases to desired level (not to exceed 88%) ,
THEN
(
CLOSE [1 -FCV-68*303].
1st IV
[6] ENSURE [1-PCV-68-301] PRT vent valve CLOSED.
1st IV END OF TEXT
(
1-50-68-5 SQN PRESSURIZER RELIEF TANK Rev: 17
( 1 Page 10 of 35 Date _
8.2 Reducing PRT Level Using B RCDT Pump CAUTION 1 Pump damage could occur if suction is lost while pumping water> 175'F.
CAUTION 2 RCDT pump 1B will NOT automatically stop on low level in PRT OR closure of FCV-68-310.
NOTE RCDT pump B will Auto start when 1-FCV-68-310, PRT drain to RCDT opens.
[1] VERIFY RCDT pumps aligned for service in accordance with Valve Checklist 1-77-1.02.
NOTE An AUO at panel O-L-2 in communication with a MCR UO is needed to perform this Instruction.
[2] STATION an AUO at panel 0-L-2.
[3] IF RCDT level> 20%, THEN PUMP down RCDT level in accordance with Appendix C of this Instruction.
[4] ENSURE [1-FCV-77-9] and [1-FCV-77-10] RCDT pump outlet isolation valves are OPEN.
[5] ENSURE [1-HS-77-6A] for RCDT pump B is in the PULL-P-AUTO position.
[6] OPEN [1-FCV-68-305] Nitrogen Supply to PRT.
[7] PLACE [1-HS-68-310A] in the OPEN position, AND VERIFY [1-FCV-68-310] OPENS.
[8] ENSURE RCDT pump B STARTS .
SQN 1-50-68-5 PRESSURIZER RELIEF TANK Rev: 17
( 1 Page 11 of 35 Oate _
8.2 Reducing PRT Level Using B RCDT Pump (Continued)
[9] IF PRT pressure drops < 1.5 psig, THEN COMPLETE the following :
[a] STOP 'B' RCOT pump at 0-L-2, AND CLOSE [1-FCV-68-3101
[b] WHEN PRT pressure returns to normal, THEN OPEN [1-FCV-68-310], AND VERIFY RCDT pump B STARTS.
CAUTION The RCDT level is to be maintained < 50% while 1-FCV-68-310 is open to prevent inadvert ent opening of 1-LCV*77-415 which could cause overfilling of RCDT from the PRT.
[10] IF at any time while pumping down the PRT the RCDT level approaches 50%, THEN PERFORM the following before continuing the PRT level reduction :
[a] PLACE [1-HS-77-6A] RCDT pump B in the PULL*TO*LOCK position.
[b] CLOSE [1-FCV-68-3101
[c] GO TO Appendix C of this Instruction for RCOT level reduction and return to Step [11) of Section 8.2.
l
SQN 1-S0-68-5 PRESSURIZER RELIEF TANK Rev: 17
( 1 Page 12 of 35 Date 8.2 Reducing PRT Level Using B RCDT Pump (Continued)
[11] IF returning from Appendix C, THEN PERFORM the following:
[a] PLACE [1-HS-77-6A] RCDT pump Bin PULL-P-AUTO position .
[b] OPEN [1-FCV-68-31 0].
[12] WHEN PRT reaches desired level, THEN STOP 'B' RCDT pump.
[13] CLOSE [1-FCV-68-310l 151 IV
[14] PLACE [1-HS-77-6A] RCDT pump 'B' in PULL-P-AUTO C position at O-L-2 panel.
1st IV
[15] CLOSE [1-FCV-68-305] Nitrogen Supply to PRT.
1st IV END OF TEXT
SQN 1-S0-68-5 PRESSURIZER RELIEF TANK Rev: 17
( 1 Page 13 of 35 Date _
8.3 Reducing PRT Level Using A RCDT Pump CAUTION 1 Pump damage could occur if suction is lost while pumping water> 175°F.
CAUTION 2 RCDT pump 1A will NOT automatically stop on low level in PRT OR closure of FCV-68-310.
NOTE RCDT pump A operates automatically with 1-LCV-77-415 from the RCDT only.
[1] VERIFY RCDT pumps aligned for service in accordance with Valve Checklist 1-77-1.02 .
[2] IF RCDT level> 20%, THEN PUMP down RCDT level in accordance with Appendi x C of c NOTE this Instruction.
Communications will have to be established between MCR, Radwaste (0-L-2), and switchgear for "A" RCDT pump.
[3] STATION an AUO at panel O-L-2.
[4] STATION an AUO at Switchgear for "A" RCDT pump.
[5] ENSURE [1.FCV-77-9] and [1.FCV-77-10] RCDT pump outlet
. isolation valves are OPEN.
[6] OPEN [1-FCV*68-305] Nitrogen Supply to PRT.
[7] PLACE [1-HS-77*6A] RCDT Pump B in PULL-TO-LOCK.
[8] PLACE transfer switch XS-77-4 on 1A-A Reactor Vent Board compartment 2C to AUX position.
[9] PLACE [1-HS-68-31 OA] in the OPEN position , AND VERIFY [1-FCV-68-310] OPENS.
1-S0-68-5 SQN PRESSURIZER RELIEF TANK
( 1 Rev: 17 Page 14 of 35 Date _
8.3 Reducing PRT Level Using A RCDT Pump (Continued)
[10] PLACE [1-HS-77-4Dl RCDT Pump A, in the START position (at switchgear).
[11] IF PRT pressure drops < 1.5 psig, THEN STOP RCDT pump A.
[12] WHEN PRT pressure returns to normal, THEN PLACE [1-HS-77-4Dl RCDT pump A to the START position (at switchgear).
CAUTION The RCDT level is to be maintained < 50% while 1-FCV-68-310 is open to prevent inadvertent opening of 1-LCV-77-415 which could cause overfilling of RCDT from PRT.
[13] IF at any time while pumping down the PRT the RCDT level approaches 50%, THEN PERFORM the following before continuing the PRT level reduction:
[a] PLACE [1*HS-77-4Dl RCDT pump A in the STOP position.
[b] CLOSE [1-FCV-68-310].
[c] OPEN [1-LCV-77-415J.
[d] START RCDT pump "A" with 1-HS-77-4D, AND REDUCE RCDT level to approximately 20%.
Ie] WHEN RCDT level is approximately 20%,
THEN STOP RCDT pump "A" with 1-HS-77-4D.
If] ENSURE [1-LCV-77-4151 closed.
(
SQN 1-50*68*5 PRESSURIZER RELIEF TANK Rev: 17
( 1 Page 15 of 35 END OF TEXT
SQN 1-50-68-5 PRESSURIZER RELIEF TANK
( 1 Rev: 17 Page 16 of 35 Date NOTE May need an extra copy of this Instruction.
8.4 Reducing the Temperature of the PRT
[1] ENSURE [1-FCV 12] OPEN.
[2] OPEN [1-FCV-68-303] by placing
[1-HS-68-303A] to OPEN position.
[3] IF PRT level increases to ~ 88% or PRT temperature decreases y 120°F, THEN CLOSE [1-FCV-68-303] .
1st IV
[4] IF PRT level is ~ 88%, THEN GO TO section 8.2 or 8.3 of this Instruction , AND
(
RETURN to step [1] of this section if further temperature reduction is needed.
END OF TEXT
(
SQN 1-S0-68-5 PRESSURIZER RELIEF TANK
( 1 Rev: 17 Page 17 of 35 Date _
8.5 Increasing the Pressure of the PRT
[1] OPEN [1-FCV 305] Nitrogen Supply to PRT.
[2] WHEN [1-PI-68-3011 is between 3 to 6 psig, THEN CLOSE [1-FCV-68*305] Nitrogen Supply to PRT.
1st IV END OF TEXT
(
~--'----'-------- ----------- --------T-------'
SQN 1-50-68-5 PRESSURIZER RELIEF TANK
( 1 Rev: 17 Page 18 of 35 Date _
8.6 Reducing the Pressure of the PRT
[1] STATION AUO at panel 0-L-2 to monitor vent header pressure and start Waste Gas Compressor (WGC) if necessary.
[2] OPEN [1-PCV-68-301].
[3] WHEN [1-PI-68-3011 is between 3 to 6 psig, THEN CLOSE [1-PCV-68-301l 1st IV NOTE: Step [4] may be repeated if it is suspected that water remains in waste gas vent header and additional venting is necessary.
[4] IF the PRT pressure will not drop while venting or water is suspected to be in waste gas vent header, THEN PERFORM the following:
[a] NOTIFY U-1 and U-2 SRO that vent header is about to be vented and to monitor AS area radiation monitors and 0-RM-90-1 01 , AS vent monitor. o
[b] OPEN [O-LCV-77-403], Loop Dr LCV (653' U1 pipe chase), for 15 seconds, THEN CLOSE.
[c] OPEN [O-LCV-77-404], Loop Dr LCV (653' U1 pipe chase), for 15 seconds, THEN CLOSE.
[d] OPEN [O-LCV-77-405], Loop Dr LCV (669' U2 pipe chase) for 15 seconds, THEN CLOSE.
END OF TEXT l
SQN 1-S0-68-5 PRESSURIZER RELIEF TANK
( 1 Rev: 17 Page 19 of 35 Date _
8.7 Gravity Draining PRT to the Containment Floor and Equipment Drain Sump (RBF & EDS)
CAUTION Completely draining PRT may result in gas binding RCDT pumps.
[1] OBTAIN permission from US to drain PRT to RBF & EDS.
[2] ENSURE the following RCDT control switches in the PULL-TO-LOCK position:
A. [1-HS-77-4A] RCDT PUMP 1A.
B. [1-HS-77-6A] RCDT PUMP 1B.
[3] PLACE [1-HS-77-415] RCDT pump suction in the CLOSE position AND ENSURE [1-LCV-77-415] remains CLOSED.
(switch is spring return to auto)
[4] IF both of the following conditions exist:
- Pressurizer PORVs OPEN,
- RCS is vented to atmosphere, THEN MARK Steps [5] and [6] as N/A.
NOTE: If Step [4] is N/A, then either Step [5] or Step [6] must be performed to prevent drawing a vacuum in PRT while draining.
[5] IF all of the following conditions exist:
- Pressurizer PORVs are CLOSED,
- PRT is NOT vented to atmosphere,
c'
1-S0-68-5 PRESSURIZER RELIEF TANK
( Rev: 17 Page 20 of 35 Date, _
8.7 Gravity Drain ing PRT to the Containment Floor and Equipment Drain Sump (RBF & EDS) (Continued)
[6] IF all of the following conditions exist:
- PRT has been purged and vented to atmosphere,
- PRT manual vent to be used as a vent path,
- 1-68-573 flange is removed ,
THEN ENSURE [1-68-573] PRT Manual Vent OPEN .
[7] OPEN [1-FCV-68-310] PRT to RCDT suction header.
[8] OPEN [1-FCV-77-3] RCDT to RBF & EDS.
[9] IF high level alarm Illuminates on RCDT during this operation ,
THEN
[a] CLOSE [1-FCV-68-31 0]
AND DRAIN RCDT to -20% level.
[b] WHEN RCDT level is in the normal range , THEN ENSURE [1-LCV-77-415] is CLOSED AND OPEN [1-FCV-68-310] to resume PRT draining.
[10] WHEN it is no longer desired to transfer PRT to RBF & EDS, THEN CLOSE [1-FCV-77-31 1st IV
[11] CLOSE [1-FCV-68-31 0].
1st IV L
.-'- - . - - - , - - -- - - - - - - - - - - - - -- - - - - ' - - r - - -- - - - - ,
SQN 1-S0-68-5 PRESSURIZER RELIEF TANK
( 1 Rev: 17 Page 21 of 35 Date _
8.7 Gravity Draining PRT to the Containment Floor and Equipment Drain Sump (RBF & EDS) (Continued)
[12] ENSURE [1-FCV-68-305] Nitrogen Supply to PRT is CLOSED.
1st IV
[13] IF manual vent used as vent path is step [6] ,
THEN ENSURE [1-68 -573] PRT Manual Vent CLOSED.
1st IV NOTE RCDT suction piping may be gas bound if PRT was drained completely.
[14] IF PRT was drained completely, THEN EVALUATE need to prime the RCDT pumps using 1-S0-77-1, Reactor Coolant Drain Tank.
[15] ENSURE [1-HS-77-415] RCDT pump suction in AUTO.
1st IV
[16] PLACE the following control switches to the PULL-P-AUTO position.
A. [1-HS-77-4Al RCDT pump 1A.
1st IV B. [1-HS-77-6A] RCDT pump 1B.
1st IV END OF TEXT
SQN 1-S0-68-5 c 1 PRESSURIZER RELIEF TANK Rev: 17 Page 22 of 35 Date _
8.8 Reducing the 0 , Concentration in the PRT in Mode 5 or 6 NOTE 1 Local AUG assistance will be needed to perform this Instruction.
NOTE 2 Several copies of Appendices A and B may be needed to complete this Instruction .
NOTE 3 This Instruction can only be performed in modes 5 and 6.
NOTE 4 Step [1] may be NA'd if flange has been previously removed and hose installed.
[1] REQUEST Mechanical Maintenance to REMOVE blind flange from [1-68-573] and to INSTALL a temporary hose.
[2] IF reducing PRT oxygen concentration utilizing RCDT pump "B", THEN PERFORM Appendix A to reduce the PRT 0 , concentration .
[3] IF reducing PRT oxygen concentration utilizing RCDT pump "A", THEN PERFORM Appendix B to reduce the PRT 0 , concentration.
[4] ENSURE [1-PCV-68-304] PRT N2 pressure regulator maintains - 6.5 psig.
[5] CLOSE [1-FCV-68-305] nitrogen inlet isolation valve.
1st IV
[6] ENSURE [1- FCV-68-308] gas analyzer FeV CLOSED .
1st IV
[7] ENSURE [1-68-573] PRT vent is CLOSED.
[8] REQUEST Mechanical Maintenance to remove hose from
[1-68-5731, AND INSTALL blind flange.
[9] ENSURE [1- 68-573] PRT vent to atmosphere CLOSED AND Blind Flange INSTALLED.
1st IV END OF TEXT
(
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SQN 1
PRESSURIZER RELIEF TANK 1-50-68-5 Rev: 17 Page 23 of 35 Date _
8.9 Purging the PRT CAUTION If PRT temperature is >130°F (1-TI-68-309) , this procedure can NOT be performed.
NOTE 1 This section purges the PRT by increasing pressure to - 15 psig then decreasing pressure to - 5 psig. Number of times pressure will be increased and decreased will be determined by Chem Lab.
NOTE 2 0 , concentrat ion for inservice Waste Gas Decay Tank should be monitored during this process.
NOTE 3 When PRT is vented to the RCDT, pressure will increase to near PRT pressure.
NOTE 4 Two or three gas decay tanks will be required for this purge.
NOTES VCT pressure must be maintained ~ 25 psig when purging PRT.
[1] IF desired to raise PRT level to just below high level alarm, THEN PERFORM Section 8,1.
[2] IF hydrogen aligned to VCT, THEN ADJUST [1*PCV 120] VCT Hydrogen Blanket, to maintain ~ 25 psig. (on top of VCT room)
[3] IF Nitrogen aligned to VCT, THEN ADJUST [1-PCV-62-119] VCT Nitrogen Blanket, to maintain ~ 25 psig. (on top of VCT room)
[4] ADJUST [1-PCV-68-304] setpoint to - 15 psig.
(located in 690 pipe chase northeast corner)
NOTE 1-XA-55-5A window D1 is an expected alarm when this process increases pressure > 8 psig.
[5] OPEN [1-FCV-68-3051 Nitrogen Supply to PRT.
[6] WHEN [1-PI-68-301] is - 15 psig, THEN CLOSE [1-FCV-68-3051 Nitrogen Supply to PRT.
1-S0-68-5 PRESSURIZER RELIEF TANK
( Rev: 17 Page 24 of 35 Oate _
8.9 Purging the PRT (Continued)
[7] STATION AUO at panel 0-L-2 to MONITOR Vent Header pressure D.
NOTE 1-XA-55-5B window A2, B2, C2, & 02 are expected alarm when PRT is vented to the vent header due to increased pressure on RCOT.
[8] OPERATE Waste Gas Compressor as necessary. o
[9] OPEN [1-PCV-68-3011, PRT Vent header PCV.
[10] WHEN [1-PI-68-301] is - 5 psig, THEN CLOSE [1-PCV-68-301] , PRT Vent header PCV.
[11] REPEAT steps [5] thru [10] as directed by Chem Lab.
[12] VERIFY [1-PCV-68-305] CLOSED, Nitrogen to PRT.
IV
[13] VERIFY [1-PCV-68-301] CLOSED, PRT Vent header PCV.
IV
[14] RETURN [1-PCV-68-304] setpoint to - 6.5 psig (located in 690 pipe chase northeast corner) 1st CV
[15] IF using Hydrogen, THEN ADJUST [1-PCV-62-120] VCT Hydrogen Blanket, to maintain approximately 17-20 psig. (on top ofVCT room)
[16] IF using Nitrogen, THEN ADJUST [1-PCV-62-119] VCT Nitrogen Blanket, to maintain approximately 17-20 psig. (on top of VCT room)
[17] NOTIFY Chem Lab that PRT purge has been completed.
END OF TEXT
1-S0-68-5 SQN PRESSURIZER RELIEF TANK
( 1 Rev: 17 Page 25 of 35 9.0 RECORDS Completed copies of all sections, Appendices , and attachments shall be transmitted to the Operations Superintendent's Secretary.
~_____l 1-50-68-5 SQN PRESSURIZER RELIEF TANK
( 1 Rev: 17 Page 26 of 35
[
APPENDIX A Page 1 of 4 Oate _
PRT 0, CONCENTRATION REDUCTION USING RCDT PUMP B CAUTION Over filling
. the PRT
. to solid water condition may result in failure of the PRT rupture disc.
[1] ENSURE [1*FCY*68*305] nitrogen inlet isolation valve is CLOSED.
[2] ENSURE [1-PCY-68-301] PRT vent valve to vent header is CLOSED.
[3] ENSURE [1-68-573] PRT vent to atmosphere is OPEN.
[4] OPEN [1-FCY-68-303] primary water supply to PRT.
[5] YERIFY [1-L1*68*300] PRT level indicator on 1-M-4 shows increase.
[6] YERIFY PRT high level alarm comes in at - 88%.
[7] WHEN water level reaches 98%, as indicated on
[1-L1-68*3001, THEN CLOSE [1-FCY-68-303l 1st IV
[8] CLOSE [1-68-573] PRT vent to atmosphere. .
[9] OPEN [1*FCY*68*305] nitrogen inlet isolation valve.
[10] VERIFY RCOT pumps aligned for service in accordance with Valve Checklist 1-77-1.02.
NOTE An AUO at panel 0-L-2 in communication with a MCR UO is needed to perform this Instruction.
[11] STATION an AUO at panel 0-L-2.
[12] ENSURE [1-FCY*77*9] and [1-FCY*77*10] RCOT pump outlet isolation valves are OPEN.
1-50-68-5 SQN PRESSURIZER RELIEF TANK
( 1 Rev: 17 Page 27 of 35 APPENDIX A Page 2 of 4 Oate _
[13] IF filling and venting of RCOT suction line or pumps IS NOT required, THEN GO TO step [20] and N/A steps [14] through [19].
[14] PLACE control switches in the PULL-TO-LOCK position:,
A. [1-HS-77-4A] RCOT pump 1A.
B. [1*HS-77-6A] RCOT pump 1B.
NOTE Steps [15] through [19] fill and vent the RCOT pump suction header.
Step [20] starts the O2 concentration reduction.
[15] PLACE [1-HS-68-310A] in the OPEN position, AND VERIFY [1-FCV-68-310] opens.
NOTE Opening 1-FCV-77-3 allows suction header to be vented to Cntmt Floor & Equip. Drain Sump.
[16] OPEN [1-FCV-77-3] RCOT to RBF&EOS isolation.
[17) WHEN a drop in PRT level is observed, THEN CLOSE [1-FCV-77-31.
[18] IF RCOT or suction line from RCOT has been drained and is ready to be filled, THEN
[a] OPEN [1-LCV-77-415] while MONITORING RCOT and PRT levels.
[b] WHEN a drop in PRT level is observed and/or RCOT level increases or is at desired level, THEN CLOSE [1-LCV-77-415].
l [19] CLOSE [1-FCV-68-3101.
J[ _ _--------'-------'
SQN 1-50-68-5 PRESSURIZER RELIEF TANK Rev: 17
( 1 Page 28 of35 APPENDIX A Page 30f4 Date _
CAUTION 1 Pump damage could occur if suction is lost while pumping water> 175°F.
CAUTION 2 RCDT pump 1A will NOT automatically stop on low level in PRT OR closure of FCV-68-310.
NOTE RCDT Pump B will Auto start when 1-FCV-68-310, PRT drain to RCDT opens.
[20] ENSURE control switches are in the P-AUTO position:
A. [1-HS-77-4A] RCDT pump 1A.
1st IV B. [1-HS-77 -6A] RCDT pump 1B.
1st IV
[21] PLACE [1-HS-68-310A] in the OPEN position, AND VERIFY [1-FCV-68-310] opens.
[22] ENSURE RCDT Pump B STARTS .
[23] IF PRT pressure drops < 1.5 psig, THEN COMPLETE the following:
[a] STOP 'B' RCDT pump at O-L-2, AND CLOSE [1-FCV-68-310].
[b] WHEN PRT pressure returns to normal, THEN OPEN [1-FCV-68-310],
AND VERIFY RCDT pump B STARTS.
(
~C_ _
1-S0-68-5 PRESSURIZER RELIEF TANK Rev: 17
( .
Page 29 of 35
L-----------'
APPENDIX A Page 4 of 4 Date_ _-,--_
[24] WHEN PRT reaches desired level, THEN STOP RCDT Pump B.
[25] CLOSE [1-FCV-68-310].
tst IV
[26] DIRECT Chem Lab to obtain grab sample of the PRT atmosphe re for oxygen concentration.
[27] IF PRT O2 concentration is > 2% by volume, THEN
.RETURN to step [1] of this Appendix .
[28] IF PRT O2 concentration is < 2% by volume , THEN RETURN to step [4] Section 8.8 of this Instruction .
END OF TEXT
(
~Q.1_
1-S0-68-5 PRESSURIZER RELIEF TANK
( Rev: 17 Page 30 of 35 N_ -.L. L - -----'
APPENDIX B Page 1 of 4 Date _
PRT 0, CONCENTRATION REDUCTION USING RCDT PUMP A CAUTION Over filling the PRT to solid water condition may result in failure of the PRT rupture disc.
[1] ENSURE [1-FCV-68-305] nitrogen inlet isolation valve is CLOSED .
[2] ENSURE [1-PCV-68-301] PRT vent valve to vent header is CLOSED.
[3] ENSURE [1-68-573] PRT vent to atmosphere is OPEN.
[4] OPEN [1-FCV 303] primary water supply to PRT.
[5] VERIFY [1-L1-68-300] PRT level indicator on 1-M-4 shows increase.
[6] VERIFY PRT high level alarm comes in at - 88%.
[7] WHEN water level reaches 98%, as indicated on
[1-L1-68-300], THEN CLOSE [1-FCV-68-303].
1sl IV
[8] CLOSE [1-68-573] PRT vent to atmosphere.
[9] OPEN [1-FCV-68-305] nitrogen inlet isolation valve.
[10] VERIFY RCDT pumps aligned for service in accordance with Valve Checklist 1-77-1.02.
NOTE An AUO at panel 0-L-2 in communication with a MCR UO is needed to perform this Instruction.
[11] STATION an AUO at panel O-L-2.
ENSURE [1-FCV-77-9] and [1-FCV-77-10] RCDT pump outlet l [12]
isolation valves are OPEN.
1-50-68-5 SQN
(
L---.-.ll_ _--'-----------'
1 PRESSURIZER RELIEF TANK Rev: 17 Page 31 of 35 APPENDIXB Page 2 of 4 Date _
[13] IF filling and venting of RCDT suction line or pumps IS NOT required, THEN GO TO step [20] and N/A steps [14] through [19].
[14] PLACE control switches in the PULL-TO-LOCK position:,
A. [1-HS-77-4A] RCDT pump 1A.
B. [1-HS-77-6A] RCDT pump 1B.
NOTE Steps [15] through [19] fill and vent the RCDT pump suction header.
Step [20] starts the O2 concentration reduction.
[15] PLACE [1-HS-68-310A] in the OPEN position, AND VERIFY [1-FCV-68-310] opens.
NOTE Opening 1-FCV-77-3 allows suction header to be vented to Cntmt Floor & Equip. Drain Sump.
[16] OPEN [1-FCV-77-3] RCDT to RBF&EDS isolation.
[17] WHEN a drop in PRT level is observed, THEN CLOSE [1-FCV-77-31 (18] IF RCDT or suction line from RCDT has been drained and is ready to be filled, THEN
[a] OPEN [1-LCV-77-415] while MONITORING RCDT and PRT levels.
[b] WHEN a drop in PRT level is observed and/or RCDT level increases or is at desired level, THEN CLOSE [1-LCV-77-415].
~_N_'--L-1-S0-68-5 PRESSURIZER RELIEF TANK
( Rev: 17 Page 32 of 35
.L, -----l APPENDIX B Page 3 of4 Date, _
[19] CLOSE [1-FCV 31OJ-CAUTION 1 Pump damage could occur if suction is lost while pumping water> 175'F.
CAUTION 2 RCDT pump 1A will NOT automatically stop on low level in PRT OR closure of FCV-68-310.
NOTE RCDT Pump A operates automatically with 1-FCV-77-415 from the RCDT only.
[20] ENSURE [1-HS-77-61 RCDT Pump B in PULL-TO-LOCK.
[21] PLACE [1-HS-68-310A] in the OPEN position, AND VERIFY [1-FCV-68-310] opens,
[22] START RCDT PUMP 'A' by placing [1-HS-77-4Al in the START position.
[2 3] IF PRT pressure drops < 1.5 psig, THEN COMPLETE the following :
[a] STOP 'A' RCDT Pump at O-L-2.
[b] WHEN PRT pressure returns to normal, THEN START RCDT PUMP 'A' by placing [1-HS-77-4A] in the START position.
[24] WHEN PRT reaches desired level, THEN STOP RCDT Pump A
[25] CLOSE [1-FCV 310]
1st IV
(
1-50-68-5 SQN PRESSURIZER RELIEF TANK
( 1 Rev: 17 Page 33 of 35 APPENDIX B Page 4 of4 Date _
[26] DIRECT Chem Lab to obtain sample of the PRT atmosphere for oxygen concen tration.
[27] ENSURE control switches are in the P-AUTO position:
A. [1-HS-77-4Al RCDT pump 1A.
t st IV B. [1-HS-77 -6A] RCDT pump 1B.
1st IV
[28] IF PRT 0 , concentration is > 2% by volume, THEN RETURN to step [1] of this Appendix.
[29] IF PRT 0 , concentration is < 2% by volume, THEN RETURN to step [4] Section 8.8 of this Instruction .
END OF TEXT
(
1-50-68-5 SQN PRESSURIZER RELIEF TANK Rev: 17
( 1 Page 34 of 35 APPENDIX C Page 1 of 1 Date _
REDUCING LEVEL IN RCDT
[1] ENSURE [1-LCV-77-415] RCDT pump suction OPEN.
[2] START RCDT pump A or B by placing
[1-HS-77-4Al or [1-HS-77-6A] in START .
[3] WHEN RCDT level is approximately 20% , THEN STOP the running RCDT pump.
[4] ENSURE [1-LCV *77*415] RCDT pump suction CLOSE D.
END OF TEXT .
(
[~
1-50-68-5 PRESSURIZER RELIEF TANK
( Rev: 17 Page 35 of 35 SOURCE NOTES Page 1 of 1 REQUIREMENTS SOURCE IMPLEMENTING STATEMENT DOCUMENT STATEMENT Procedures that do not contain NCO 970071001 C.1 appropriate verification requirements will be revised . (This item is not annotated within the procedure since the entire procedure must meet the verification program requirements.
JPM 8.1 .1 Page 1 of 16 Rev. 2 SEQUOYAH NUCLEAR PLANT
( JOB PERFORMANCE MEASURE B.1 .f JPM 115-2AP Respond To ERCW Pump Trip per AOP-M.01 PREPARED! .
REVISED BY: Date!
VALIDATED BY:
- Date!
APPROVED BY: Datel (Operations Training Manager)
CONCURRED: ** Datel (Operations Representative)
- Validation not required for minor enhancements, procedure Rev changes that do not affect the JPM, or individual step changes that do not affect the flow of the JPM.
JP M B.1.f Page 2 of 16 Rev 2 I NUCLEAR TRAINING
( REVISIONIUSAGE LOG REVISION DESCRIPTI ON OF V DATE PAGES PREPAREDI NUMBER REVISION AFFECTED REVISED BY:
0 New JPM for NRC Exam. Update for V 12/4/01 all L. Paule y proc edur e rev. And reorder JPM step 8 and cons ole operator act ion.
1 Updated to current revision and IC. Y 8/1 6/04 All MG Croteau Rewrote to include returning to section 2.1 afte r header break isolated. Extensive rewr ite. Needs full validation run including time.
2 Updated to current procedure revision. N 2/5107 All RH Evans Minor Form at changes c
V - Specify if the JPM change will require another validation (Y or N).
See cover sheet for criteria.
l
JPMB.1 .f Page 3 of 16 Rev. 2 SEQUOYAH NUCLEAR PLANT RO/SRO JOB PERFORMANCE MEASURE
( Task:
Respond to ERCW Pump Trip Note: This JPM satisfies Simulator Manipulation "L".
JAITA task # : 0000620501 (RO)
KIA Ratings:
076A2.01 (3.5/3.7) 076K4.06 (2.8/3.2) 076A4.01 (2.9/2.9) 076A2.02 (2.7/3.1 )
076K6.04 (2.1/2.2)
Task Standard:
STANDBY A TRAIN ERCW Pump has been started and the auto start selection switch is selected away from Q-A ERCW Pump position. ERCW Header leak has been isolated.
Evaluation Method : Simulator _-LX~_ In-Plant _
~============ == =================================================================
Performer:
NAME Start Time _
Performance Rating: SAT UNSAT Performance Time Finish Time _
c Evaluator:
SIGNATURE DATE
===============================================================
COMMENTS
JPM B.1.f Page 4 of 16 Rev. 2 SPECIAL INSTRUCTIONS TO EVALUATOR:
- 1. Critical steps are identified within the step
( 2 . Sequenced steps identified by an "s" 3 . Any UNSAT requires comments
- 4. Initialize the simulator in IC #16. Ensure a -A ERCW pump is in service and the selector switch is selected for a-A. Ensure 1 B-B CCP is running and 1 A-A is in standby.
- 5. Activate MF #RW01G (Trips a-A ERCW Pump)
- 6. Freeze the simulator until the operator has been briefed and is ready to perform task.
- 7. Console op erato r must insert malfu nction RW13B at 90% prior to JP M step 8.
- 8. See specific J PM st eps for required remote function manipul ations.
- 9. Ensure operator performs the following required actions for SELF-CHECKING;
- a. Identifies the correct unit, train, component, etc.
- b. Reviews the intended action and expected response.
- c. Compares the actual response to the expected response.
Validation Time: CR. 15 mins Local _
Tools/EquipmentlProcedures Needed:
AOP-M.01, Section 2 and 2.1, 2.10 Reference Title Rev No.
===============================================================
READ TO OPERATOR Directions to Trainee:
I will explain the initial conditions, and state the task to be performed. All control room steps shall be performed for this JPM. I will provide initiating cues and reports on other actions when directed by you.
When you complete the task successfully, the objective for this job performance meas ure will be satisfied. Ensure you indicate to me when you understand your assigned task. To indicate that you have completed your assigned task return the handout sheet I provided you.
INITIAL CONDITIONS:
Unit is in mode 1 at 100% power INITIATIN G CUES:
You are the CRO and are to monitor the board and respond, as a reader/doer, to any event that may occur.
Inform SM when any required action(s) associated with the failure have been completed.
JPM B.l.!
Page 5 of 16 Rev. 12 Job Performance Checklist:
STEP/STANDARD SAT/UNSAT
( _ SAT Examiner NOTE: Candidate may perform the ARP actions. They are identical to procedure steps. _ UNSAT STEP 1.: Obtain a copy of the appropriate procedure. Start Time_ _
Cue: The SM will evaluate Tech Specs, TRM, and the REP STANDARD : A copy of the AOP-M.Ol has been obtained and goes to section 2.1.
COMMENTS :
STEP.k: [1] IDENTIFY and LOCK OUT failed ERCW pump _SAT
_ UNSAT STANDARD : ERCW pump Q-A HAND SWITCH has been placed in the PULL TO LOCK position.
COMMENT S:
c §'1~ P 3.: [2] START additional ERCW pumps as required to maintain header pressure between 78 psig and 124 psig.
_ SAT
_ UNSAT STANDARD: Operator starts another A (J-A) Train ERCW pump. This step is Critical Step critical to return header pressure to normal.
COMMENTS:
STEP 4.: [3] CHECK two A Train ERCW Pumps AVAILABLE. _ SAT
_UNSAT STANDARD : Operator verifies at least 2 A train ERCW pumps available COMMENTS:
(
JP M B.1.I Page 6 of 16 Rev. 12 Job Perfo rmance Check list:
STEP/STAN DARD SAT/UNSAT
( STEP 5.: [4] CHECK lA and 2A ERCW supply header pressures and flows - SAT NORMAL :
- a. Supply Header pressures [between 78 psig and 124 psig]: - UNSAT
- l-PI-67-493A
- 2-PI-67-493A STAND ARD: Opera tor checks header pressures are between 78 and 124 psig on both A Train indicators.
. COMMENTS:
STE P 6.: b. Supply Header flows [expected value]. - SAT
- l-FI-67-61
- 2-FI-67-61 - UNSAT STANDARD: Operator checks there is flow on the A train supply header as indicated on both indicators.
COMM ENTS:
Console operator insert malfunction RW13B at 90% prior to checking head er flows.
(
r" [5] CHECK 1B and 2B ERCW supply header pressures and flows NORMAL:
a.
b.
Supply Header pressures [between 78 psig and 124 psig]:
- 1-PI-67-488A
- 2-PI-67-488A Supply header flows [expected value]:
SAT UNSAT
- l-Ft-67-62
- 2-FI-67-62 ST ANDA RD: Operator checks header pressu res are between 78 and 124 psig on both B Train indicators. Flows are abnormal, trans itions to section 2.10.
COMMENTS:
(
JPM B.l .f Page 7 of 16 Rev. 12 Job Perform ance Checklist:
STEP/STANDARD SATIUNSAT
( EVALU AT OR NOTE: T he followina steps are from section 2.10:
STEP 8.: [1] Stop and LOCK OUT All Train B ERCW Pumps - SAT STANDARD: Operator places all running B train ERCW pumps in pull-to-lock - UNSAT position. This ste p is cr itical ta prevent pumping water aut the break. Crit ical Step COMMENTS:
STEP 9.: [2] DISPATCH operators with radios to perform the following: - SAT
- ENSURE all pumping station watertight doors are CLOSED.
Cr it ical Step Cue: Play role of A UO and acknowledg e the request.
STANDARD: Operator dispatches operators to perform the required appendices and actions. This step is critical to supply power to valves needed to isolate the leak.
COMMENTS :
STEP 10.: [3] ENSURE 1A and 2A CCPs RUNNING. - SAT Cue: Play role of U2 CRO and start 2A CCP - UNSAT STANDARD: Operator starts lA-A charging pump. Th is step is critical to supply Criti cal Step RCP seal s and normal charging from A train equipment.
COMMENTS:
JPM B.1.f Page 8 of 16 Rev. 12 Job Performance Checklist:
STEP/STANDARD SAT/UNSAT
(
ST EP 11.: [4] STOP and LOCK OUT effecte d equip ment: - SAT
- a. PLACE the following pump s in PULL TO LOC K: - UNSAT
- 1B CCP Critical Step
- 2B CCP
- 1B Sl Pump
- 2B Sl Pump Cue: Play role of U2 CRO and Stop/Lockout associated pumps STAN DARD : Operator secures the running pump s in the control room and dispatche s an AUO to loc kout the B Aux Control Air Compressor. This step is critical to prevent start of ECCS equipmen t without cooling water available to the room coolers.
CO MMENTS :
STEP 12.: b. DISPATCH operato r to plac e Train B Aux Air Compressor in SA FE STOP.
c Cue: Play role of AUO and acknowledge the request.
STANDA RD: Ope rato r secures the runn ing pumps in the contro l room and dispatc hes an AUO to loc kout the B Aux Contro l Air Compressor COMME NTS:
STEP 13.: [5] OPEN alternate ERCW supply to B train DGs: - SAT
- 1-FCV-67-65 (1B DG)
- 2-FCV 65 (2 B DG) - UNSAT Cue : Play role of CRO/AVO and acknOWledge the request.
STANDARD: Op erat or op ens 1-FC V-67-6 5 and directs opening of 2-FCV-67-65.
CO MM ENT S:
JPM B.1.I Page 9 of 16 Rev. 12 Job Performance Checklist:
STEP/STANDARD SAT/UNSAT
( EVALUATOR NOTE: RCP Temperature alarms mav come in deoendino on oace.
STEP 14.: [6] ISOLATE B Train ERCW Header rupture: _ SAT
- b. CLOSE 2-FCV-67-489. Header 2B IsoI Before Strainer [ERCW MCC 2BB Compt, 3C]. Critical Step Cue: Play role of AUO and acknowledge the request.
STANDARD: Operator notifies an AUO to close the valves to isolate the B ERCW header. This step is critical to isolate the ERCW leak.
COMMENTS:
Console Operator perform the following to isolate the leak:
MRF RWRV489 0%
MRF RWR2V489 0%
STEP 15.: [7] OPERATE available A Train ERCW Pumps to maintain pressure _ SAT c
between 78 psig and 124 psig.
_ UNSAT STANDARD: Operator will start an additional A train pump. This step is critical to return ERCW supply header pressure to normal.
Critical Step COMMENTS:
Pressure is less than 78 psiq , but procedure also allows reducing flow to non-essential equipment to raise pressure.
_ . -'--- .....J
(
JPM B.1.1 Page 10 of 16 Rev. 12 Job Perf ormance Checklist:
STEPISTANDARD SAT/UNSAT
(
STEP 16.: [8] EVALUATE aligning Train A ERCW to supply Train B: SAT
- a. IF aligning 1A to 2B header is desired , THEN PERFORM the following : UNSAT
- 1) DISPATCH personnel to CLOSE 0-67-1501 CCS Htx OB2 Inlet valve.
- 2) WHEN 0-67 -1501 CLOSED , THEN OPEN 1-FCV-67-147, Hdr Critical Step 1A to Hdr 2B Isol Valve [Rx MOV Bd 1A2-A c/9A] AND RECORD the time
- 3) WHEN 1-FCV-67-147 has been OPEN for approximately 10 minute s, THEN OPEN 0-67*1501 CCS Htx OB2 Inlet valve Cue: Direct operator to align 1A and 2A ERCW Supplies to Train B Cue: Play role of AUO and acknowledge the request. When 1*FCV*67*
147 has been directed opened, cue that 10 minutes have elapsed.
ST ANDARD: Ope rator dispatches an AUO to close 0-67 -1501 , open 1-FCV 147 and reopens 0-67-1501 after 1-FCV*67*147 has been open for - 10 minutes. This step is critical to supply cooling water to A train equipment.
CO MMENTS:
( I Console Operator perform the following to open 1*FCV*67*147 (ignore cycling 0-67*1501):
. ~R F RW RV489 100%
JPM B.1.!
Page 11 of 16 Rev. 12 Job Performance Checklist:
STEP/STANDARD SAT/UNSAT
(
STEP 17.: b. IF aligning 2A to 1B header is desired, THEN PERFORM the _ SAT following:
- OPEN 1*FCV-67-424, Hdr 1B to Hdr 2A CCS HX Isol Valve [Rx _ UNSAT MOV Bd 1A2-A Compt. 9B] AND RECORD the Time
- ENSURE 1-FCV-67-223, Hdr 1B to Hdr 2A Iso1 Valve is OPEN.
[Rx MOV Bd 1A2-A Com pt. 8B]. Critical Step
- ENSURE 2-FCV-67-223, Hdr 2A to Hdr 1B Isol Valve is OPEN.
Cue: Play role of AUO and acknowledge the request.
STANDARD: Operator dispatches an AUO to open 1-FCV-67-424 , and ensures that 1-FCV-67-223 and 2*FCV-67-223 are open. This step is critical to supply cooling water to A train equipment.
COMMENTS:
Console Operator perform the follow ing to open 1-FCV*67-424 (1/2-FCV-67-223 are already open):
MRF RWRV424 100%
( I STEP 18.: [9] START additional Lower Compartment Cooling Fans and CRDM Fans as required to maintain containment temperature.
_ SAT
_ UNSAT STANDARD: Operator checks containment temperature and starts fans if needed.
COM MENTS:
STEP 19.: [10] MONITOR Containment Pressure and Temperature. _ SAT STANDARD : Operator monitors containment temp erature and pressure. _ UNSAT COMMENTS:
JPM B.l.I Page 12 of 16 Rev . 12 Job Performance Checkl ist:
STEP/STANDARD SAT/UNSAT
(
STEP 20.: [11] CHECK 1A and 2A ERCW header pressures and flows adequate for - SAT current alignment:
- 1-FI-67-6 1 and 2-FI-67-6 1, at expected value - UNSAT
- 1-PI-67-493 and 2-P I-67-493 STANDARD: Operator checks above indicators and observes parameters are normal.
If not starts additional A train ERCW pumps (see JPM step 15).
~OMMENTS :
STE P 21.: [12] RESTORE equ ipment: - SAT
- b. RESTORE ther following handswltches as applicable :
I STANDARD: Operator restores B Train components to service . This step is critica l to restore A train ECCS equi pment.
COMMENTS :
STEP 22.: [13] EVALUATE isolation of non-essential A Train CCS heat loads USING - SAT Appendi x E, CCS Heat Load Reduction.
- UNSAT Cue: SM will perform the evaluation STANDARD: Operator ensures Appendix E evaluated .
COMMENTS:
~-
JPM B.1.I Page 13 of 16 Rev. 12 Job Performance Checklist:
STEP/STANDARD SAT/UNSAT
(
STEP 23.: [14] ENSURE all ACBs opened USING the following appendixes: - SAT
STANDARD : Ope rator dispatches an AUO to perform the appendices .
COMMENTS:
STEP 24.: [15] REFER to the following: - SAT
- Appendix B, Affected Equipment List (Heade r 1B) - UNSAT
- Appendix D, Affected Equipment List (Header 2B)
- Appendix P, Potential Tech Spec Impacts Cue: SM will refer to the Appendices.
STANDARD: Operator ensures Appendi x B referred to.
COMMENTS:
STEP 25 .: [16] REFER TO AOP*M.03, Loss of Component Cooling Water. - SAT Cue: SM will refer to AOP-M.03. - UNSAT STANDARD: Operator ensures AOP-M.03 referred to.
COMMENTS:
JPM 8 .1.f Page 140f 16 Rev . 12 Job Performance Checklist:
STEP/ST ANDARD SATIUNSAT
( ST EP 26.: [17] GO TO appropriate plant procedure . - SAT Cue: Direct operator to complete performance of AOP-M.01 section 2.1. - UNSAT STANDARD: SM is informed of completion of AOP-M .01 section 2.10. Stop Time__
COMMENTS :
EVALUATOR NOTE The follow ina steos are from section 2.1 STEP 27. : [5] b. CHECK 18 and 28 ERCW supply Header flows [expected value]. - SAT
- 1-FI-67 -62
- 2-FI-67 -62 - UNSAT STANDARD: Operator check s there is flow on the 8 train supply heade r as indicated on both indicators.
COMM ENTS :
STEP 28 .:
.SAT
[6] DISPATCH personnel to INSPECT failed pump(s ) and determine cause -
for failure .
- UNSAT Cue: The floor US reports that the 51 relay has a flag picked up. The AUO reports no apparent reason for the trip locally.
STANDARD: The Floor US or AUO has been notified to inspect the breaker and an AUO has been dispatched to the pump.
COMMENTS:
STEP 29.: [7] NOT IFY STA to evaluate Tech Spec LCO 3.7.4, ERCW System .
Cue: Play role of STA and acknowledge the request.
STANDARD: STA has been nolifed.
COMMENTS:
J PM B.1.I Page 15 of 16 Rev. 12 Job Perform ance Checklist:
ST EP/ST ANDARD SAT/UNSAT
( STEP 30 .: (8) CHECK ERCW pump loading amps NORMAL. - SAT STANDARD: Pump amp meter for pump that was started verified to be in normal - UNSAT operating range.
COM MENTS :
STEP 31 .: (9) TRANSFER emergency power selector switch away from failed pump . - SAT
- UNSAT ST ANDAR D: The Emergency Power Selector Switch is positioned away from Q-A ERCW pump. Critical Step COMMENTS:
ST EP~.g,: (10) EVALUATE need to close and place clearance on manual discharge - SAT valve for failed pump.
- UNSAT
( Cue: If AUO is conta cted, Play role of A UO and ackn owledge the request.
STANDARD: Operator may notify an AUO to close the manual discharge valve of Q*A ERCW pump.
COMMENTS:
STEP 33.: Inform SM of failure of ERCW pump and header and performance of - SAT AOP-M .01
- UNSAT STANDARD: SM is informed of pump and header failure and that AOP-M.01 has been performed. Stop Time__
COMM ENTS:
End of JPM
(
Page 16 of 16 Rev. 2
( CANDIDATE CUE SHEET (TO BE RETURNED TO EXAMINER UPON COMPLETION OF TASK)
DIRECTION TO TRAINEE:
I will explain the initial conditions, and state the task to be performed. All control room steps shall be performed for this JPM, including any required communications. I will provide initiating cues and reports on other actions when directed by you. Ensure you indicate to me when you understand your assigned task. To indicate that you have completed your assigned task return the handout sheet I provided you. -
INITIAL CONDITIONS:
Unit is in mode 1 at 100% power INITIATING CUES:
( You are the CRO and are to monitor the board and respond, as a reader/doer, to any event that may occur.
Inform SM when any required action(s) associated with the failure have been completed
(
( TENNESSEE VALLEY AUTHORITY SEQUOYAH NUCLEAR PLANT AOI PROGRAM MANUAL ABNORMAL OPERATING PROCEDURES AOP-M.01 LOSS OF ESSENTIAL RAW COOLING WATER Revision 15 QUALITY RELATED PREPARED/PROOFREAD BY : D, A. PORTER RESPONSIBLE ORGANIZATION: OPER ATIONS A PPROVED BY: W. T. LEARY EFFEC TIVE DATE: 07/21/06 REVISION DESCRIPTION: Incorporated various enhancements to Sect. 2,1 1 based upon feedback from REP drill (PER 97828 , NB-060173, NB-060178), Relocated caut ion , notes, and administrative actions from Section 2,0, Incorporated other enhancements and minor corrections ,
INTENT CHANGES TO SECTION 2.11 OF THIS PROCEDURE MUST BE APPROVED BY PORCo
( ____---e[
SQN LOSS OF ESSENllAL RAW COOLING WATER AOP-M.01 Rev . 15 1.0 PURPOSE This procedure provides the actions necessary to mitigate the effects of an ERCW pump or piping failure .
Page 2 of 142
AOP-M.01 LOSS OF ESSENTIAL RAW COOLING WATER
( Rev. 15
["Si~ j ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2.0 OPERATOR ACTIONS CAUTION: ERCW header rupture in Auxiliary Building could fill the passive sump in 15 minutes. Prompt action is needed.
- 1. DIAGNOSE the failure:
IF... GO TO SECTION PAGE ERCW Pump(s) tripped or failed 2.1 ERCW pump failure 5 High flow ERCW Supp ly Header 1A 2.2 Supply Hdr 1A Failure 8 to Aux Bldg High flow ERCW Supply Header 18 2.3 Supply Hdr 1B Failure 12 to Aux Bldg High flow ERCW Supply Header 2A 2.4 Supply Hdr 2A Failure 16 to Aux Bldg High flow ERCW Supply Header 28 2.5 Supply Hdr 2B Failure 22 to Aux Bldg Indications of an ERCW Return Header rupture 2.6 Return Hdr rupture 27 (must be diagnosed locally since M-27 indications in Aux Bldg are not affected)
Low flow ERCW Supply Header 1A and 2A, 2.7 Supply Header 1AJ2A 38 AND Failure in Yard Area STRAINER DIFF PRESS HIGH alarm LIT
[M-27A , C-3 and/or D-2]
Low flow ERCW Supply Header 18 and 28 , Supply Header 1B/2B 52 2.8 AND Failure in Yard Area STRAINER OIFF PRESS HIGH alarm LIT
[M-27A, C-6 and/or 0-5]
(step continued on next page)
Page 3 of 142
AOP-M.01 LOSS OF ESSENTIAL RAW COOLING WATER
( Rev. 15 I STEP I ACTION/EXPECTED RESPONSE [ RESPONSE
---'---' NOT OSTAINED ------'
2.0 OPERATOR ACTIONS (Continued)
- 3. (Continued)
IF... GO TO SECTION PAGE Low flow ERCW supply headers 1A and 2A, AND STRAINER DIFF PRESS alarms DARK
[M-27 A, C-3 and D-2] ,
AND at least one of the following alarms LIT:
2.9 Supply HeaderA 63
[1-M-158 , A-3]
Strainer Inlet Valves OR
[1-M-158, 0-2 or 0-4]
- MECH EQU IP SUMP LVL HI alarm LIT
[1-M-15A, 8-6]
Low flow ERCW supply headers 18 and 28 ,
AND STRAINER DIFF PRESS alarms DARK [M-27A, C-6 and D-5] I AND at least one of the following alarms LIT:
2.10 Supply Header B 71
Strainer Inlet Valves OR
- MECH EQUIP SUMP LVL HI alarm LIT [1-M-15A,8-6] '\
Loss of flow on ALL ERCW supp ly headers Loss of all ERCW flow 77 2.11 in modes 1-4.
END OF SECTION Page 4 of 142
SQN LOSS OF ESSENTIAL RAW COOLING WATER AOP-M.01
( Rev. 15 I STEP I ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2.1 ERCW Pump Failure
- 1. IDENTIFY and LOCK OUT failed ERCW pump.
- 2. START additional ERCW pumps as required to maintain supply header pressure between 78 psig and 124 psig.
THEN EVALUATE isolation of non-essential Train A CCS heat loads USING Appendix E, CCS Heat Load Reduction [C.1]
- 4. CHECK 1A and 2A ERCW supply IF BOTH 1A AND 2A ERCW Headers header pressures and flows NORMAL: FAILED, THEN
[between 78 psig and 124 psig]: Header A Failure Prior to ERCW Strainer Inlet Valves .
- 1-PI-67-493A
- 2-PI-67-493A
[expected value]: THEN RETURN TO Section 2.0 for diagnosis.
---~
- 1-FI-67-61
- 2-FI-67-61 Page 5 of 142
AOP-M.01 LOSS OF ESSENTIAL RAW COOLING WATER
( Rev. 15 I STEP 1 ACTION/EXPECTED RESPONSE RESPONSE NOT OSTAINED 2.1 ERCW Pump Failure (cont'd)
- 5. CHECK 18 and 28 ERCW supply header IF 80TH 18 AND 28 ERCW Headers pressures and flows NORMAL: FAILED, THEN GO TO Section 2.10, ERCW Supply
- a. Supply header pressures [between Header 8 Failure Prior to ERCW 78 psig and 124 psig]: Strainer Inlet Valves.
- 1-PI-67-488A
- 2-PI-67-488A
THEN
- 1-FI-67-62 RETURN TO Section 2.0 for diagnosis.
- 2-FI-67-62
---~
- 6. DISPATCH personnel to INSPECT failed pump(s) and determine cause for failure.
- 8. CHECK ERCW pump loading amps INVESTIGATE abnormal amp readings:
NORMAL.
- CHECK header flows and pressures.
IF amps are high due to only one pump available, THEN EVALUATE isolation of non-essential ERCW loads.
Page 6 of 142
~_N AOP-M.01 LOSS OF ESSENTIAL RAW COOLING WATER
( --l.-
Rev. 15
.L_------l I STEP [ ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2.1 ERCW Pump Failure (cont'd)
- 9. TRANSFER emergency power selector switch away from failed pump.
- 10. EVALUATE need to close and place clearance on manual discharge valve for failed pump.
11.
GO TO appropriate plant procedure .
END OF SECTION Page I of 142
AOP*M.01 SQN LOSS OF ESSENTIAL RAW COOLING WATER
( Rev. 15 L::iii~ ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2.10 ERCW Supply Header B Failure Upstream of ERCW Strainer Inlet Valves CAUTION: During operation, CCP and SI Pumps may experience bearing failure 10 minutes after loss of ERCW cooling.
- 1. STOP and LOCK OUT all Train B ERCW Pumps.
- 2. DISPATCH operators with radios to perform the following :
[Aux Bldg el. 749' , Rx MOV Boards] .
- ENSURE all pumping station watertight doors are CLOSED . [ERCW Pumping Station].
- 4. STOP and LOCK OUT affected equipment:
- a. PLACE the following pumps in PULL TO LOCK :
- b. DISPATCH operator to place Train B Aux A ir Comp ressor in SAFE STOP.
[Aux Bldg , 734' elev , Refuel Floor]
Page 71 of 142
( SQN LOSS OF ESSENTIAL RAW COOLING WATER Rev. 15 I STEP I AC TION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2.10 ERCW Supply Header B Failure Upstream of ERCW Strainer Inl et Valves (cont'd)
- 1-FCV-67-65 (18 DG)
- 2-FCV-67-65 (28 DG)
NOTE Flooding at the ERCW station may prevent FCVs fro m closing. Manual valves are located south of the CCW station and are normally locked open .
- a. CLOSE 1-FCV-67-489, Header 18 Isol a. CLOSE 1-VLV-67-5188 , ERCW Supply Befo re Stra iner [ERCW MGG 1B-8 Isolation Va lve Cornpt, 3C].
- b. CLOSE 2-FCV-67-489 , Header 28 Isol b. CLOSE 2-VLV-67-5188, ERGW Supply Before Strainer [ERGW MGG 28-8 Isolation Valve Cornpt, 3C] .
- 7. OPERATE available Train A ERCW Pumps to mai ntain pressure between 78 psig and 124 psig.
Page 72 of 142
AOP-M .01 saN LOSS OF ESSENTIAL RAW COOLING WATER
( Rev. 15 I STEP I ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2.10 ERCW Supply Header B Failu re Upstream of ERCW Straine r Inlet Valves (cont'd)
CAUTION 1 Crosstying A and B t rain ERCW supply headers shou ld only be performed if cooling is urgently requi red for Train 8 CCS related equipment. LCO 3.0.3 may be applicable.
CAUTION 2 Opening of crosstie valve 1-FCV-67-147 may result in severe fouling or flow blockage of OB1 /082 CCS Heat Exchanger, therefore t he CCS Hx OB2 should be isolated prior to opening. After approx imatel y 10 minutes OB2 CCS Hx will be returned to service.
NOTE
- With the ERCW header crosstie valves at the CCW (IPS) station open, 1A header will supply 2B and 1B ERCW Aux Bldg supply headers.
- 8. EVALUATE aligning Train A ERCW to supply Train B:
- a. IF aligning 1A to 2B header is desired, THEN PERFORM the following:
- 1) DISPATCH personnel to CLOSE 0-67-1501 CCS Hx OB2 Inlet valve.
- 2) WHEN 0-67-1501 CLOSED.
THEN OPEN 1-FCV-67-147, Hdr 1A to Hdr 2B Isol Valve
[Rx MOV Bd 1A2-A Compt. gAl and RECORD time _
- 3) WHEN 1-FCV-67-147 has been OPEN for approximately 10 minutes, THEN OPEN 0-67-1501 CCS Hx OB2 Inlet valve (step continued on next page)
Page 73 of 142
AOP-M.01 SQN LOSS OF ESSENTIAL RAW COOLING WATER
( Rev. 15 I ST EP I ACTION/EXPECTED RESPONSE RESPONSE NOT OBTA INED 2.10 ERCW Supply Header B Fail ure Upst rea m of ERCW Strainer Inlet Va lves (cont'd)
- 8. b. IF alig ning 2A to 1B header is des ired ,
THEN PERFORM the fo llowing:
[Rx MOV Bd 1A2 -A Compl. 9B] and RECORD the T ime _
- ENSURE 1-FCV-67-223, Hdr 1B to Hdr 2A Isol Va lve is OPEN .
- ENSURE 2-FCV-67-223 , Hdr 2A to Hdr 1B Isol Va lve is OPEN .
( [Rx MOV Bd 2A2 -A Cornpt. 8B].
- 9. START additional Lower Compartment Cooling Fans and CRDM Fans as required to mai ntain containment temperature.
- 10. MONITOR Co ntainment Pressure and Temperatu re.
Page 74 of 142
AOP-M.01 SQN LOSS OF ESSENTIAL RAW COOLING WATER
( Rev . 15 I STEP I ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2.10 ERCW Supply Header B Failure Upstream of ERCW Strainer Inlet Valves (cont'd)
- 11. CHECK .1A and 2A ERCW header START additional "A" Train ERCW pressures and flows adequate for current pumps as necessary.
alignment:
ISOLATE non-essential ERCW loads as
- 1-FI-67-61 and 2-FI-67-61, necessary.
at expected value DO NOT CONTINUE UNTIL header
- 1-PI-67-493A and 2-PI-67-493A pressure and flow are adequate for current alignment.
- 12. RESTORE equipment:
supplied from Train A crosstie.
- b. RESTORE the following handswitches as applicable:
- 1B-B 81 Pump to A-AUTO
- 2B-B 81 Pump to A-AUTO
- Train B Aux Air Compressor to AUTO
[Aux Bldg, 734' elev, Refuel Floor]
(
Page 75 of 142
AOP-M.01 SQN LOSS OF ESSENTIAL RAW COOLING WATER
( Rev. 15 I STEP I ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED 2.10 ERCW Supply Header B Failure Upstream of ERCW Strainer Inlet Valves (cont'd)
- 13. EVALUATE isolation of non-essential Train A CCS heat loads USING Appendix E, CCS Heat Load Reduction.
- 14. ENSURE all breakers opened USING the following appendixes
- 15. REFER TO the following:
- Appendix B, Affected Equipment List (Header 1B)
- Appendix D, Affected Equipment List (Header 2B)
- Appendix P, Potential Tech Spec Impacts.
- 16. REFER TO AOP-M.03, Loss of Component Cooling Water.
17.
GO TO appropriate plant procedure.
END OF SECTION Page 76 of 142
JPM 8.1 .g Page 1 of 9 Rev. 9
.SEQUOYAH NUCLEAR PLANT
( JOB PERFORMANCE MEASURE B.1*9 Respond to Spray Valve Failure Original Signatures on File PREPAREDI REVISED BY: Datel VALIDATED BY:
- Datel APPROVED BY: Datel (Operations Training Manager)
CONCURRED: ** Datel (Operations Representative)
- Validation not required for minor enhancements, procedu re Rev chang es that do not affec t the JPM , or individual step changes that do not affect the flow of the JPM.
JP M 8 .1.g Page 2 of 9 Rev. 9 I
NUCLEA R TRAINING
( REVISION/USAGE LOG REVISION DESCRIPTION OF V DATE PAGES PREPARED/
NUMBER REVISION AFFECTED REVISED BY:
0 Initial Issue Y 2/13/07 All RH Evans v - Specify if the JPM change will require another validation (Y or N).
See cover sheet for criteria.
JPM B.1.g Page 3 of 9 Rev. 9 SEQUOYAH NUCLEAR PLANT RO/SRO JOB PERFORMANCE MEASURE
(
Task:
Respond to Spray Valve failure Note: This JPM satisfies Simulator Manipulation XXXXXX.
JAITA task #: 3210140401 (RO) 0150050101 (RO) 0150040101 (RO) 0000910501 (RO)
KIA Ratings:
Task Standard:
Reps supplying failed spray valve are tripped . Pressurizer heaters are energized.
Evaluation Method: x Simulator _--C>.-_ _ In-Plant _
=======================================================================
Performer:
NAME Start Time Performance Rating: SAT UNSAT Pertormance Time Finish Time C Evaluator:
SIGNATURE I
DATE
=======================================================================
COMMENTS
(
JPM 8.1.g Page 4 of 9 Rev. 9 SPECIAL INSTRUCTIONS TO EVALUATOR:
- a. Set up the simulator post trip with one spray valve cracked and stuck open. RCS pressure
( should be dropping but not less than approximately 2100*2150 psig when the applicant reaches the step to check pressure control. If possible, fail pressurizer backup heaters to automatically energize so that they must be energized manually Validation Time: CR. 11 mins Local ToolslEquipmentlProcedures Needed: '
ES-O.1 Reference Title Rev No.
ES-O.1 Reactor Trip Response 30 READ TO OPERATOR Directions to Trainee:
I will explain the initial conditions, and state the task to be performed. All control room steps shall be performed for this JPM. I will provide initiating cues and reports on other actions when directed by you. When you complete the task successfully, the objective for this job performance measure will be satisfied. Ensure you indicate to me when you understand your assigned task. To indicate that you have completed your assigned task return the handout sheet I provided you.
INITIAL CONDITIONS:
- 1. Unit has tripped.
- 2. Transition to ES-O.1 has been performed.
INITIATING CUES:
You have been directed to stabilize the unit in accordance with ES-O.1 , beginning at step 1.
Notify the SRO when the unit is stable
JPM 8 .1.g Page 5 of 9 Rev. 0 Job Perfo rmance Checkl ist:
STEP/STANDARD SAT/UNSAT
( Note:
Applicant may take action re lated to cri tica l steps prior to reaching req u ired steps by use of the E8-0 .1 Handout.
STEP 1.: Obtain the appropriate procedure . - SAT
- UNSAT STANDARD: Ope rator obtains a copy of ES-O.1.
Start Ti me_ _
STEP 2 .: [1] M ON ITO R 8 1N O T a ct uated: - SAT
- UNSAT
- 81 A CTUATED p e rm iss ive DAR K [M-4A, D4 ]
STANDARD : Determines SI is NOT actuated by observing annunciator M-4A-D4 perm issive is dark STJ;;P 3.: [2] VE R IFY genera tor b re a ke rs OP E N . - SAT
- UNSAT STANDARD: Verifies generator breakers open by observing green lights on 1-M-1 benchboard .
STEP 4.: [3] M ON ITOR RCS temperatures: - SAT
- UNSAT
STANDARD: Determines T-avg is stable at or trending to between 547° F and 5 52° F .
(
JPM B.1 .g Page 6 of 9 Rev. 0 Job Performance Checklist:
STEP/STANDARD SAT/UNSAT
( STEP 5. [4] MONITOR feedwater status: - SAT T-avg less than 550 °F . UNSAT
- MFW regulating valves CLOSED.
- MFW regulating bypass valve controller outputs ZERO.
- MFW isolation valves CLOSED.
- MFW pumps TRIPPED.
- MFW flow ZERO.
- Total feed flow to SIGs greater than 440 gpm .
STANDARD: Determines Tavg is NOT less than 550°F and goesto step 5.
STEP 6.: [5] CHECK if emergency boration is required: - SAT
[aJ VERI FY all control rods fully inserted: - UNSAT
- Rod bottom lights LIT
- Rod position indicators less than or equal to 12 steps.
STANDARD: Determines All rod Bottom lights are illuminated.
STEP 7.: [b] MONITOR RCS temperature: - SAT UNSAT
- T -avg greater than 540°F if any RCP running -
STANDARD: Determines T-avg is approximately 551 °F STEP 8.: [6] ANNOUNCE reactor trip USING PA system. - SAT
- UNSAT STANDARD: Announces reactor trip over PA system
(
JPM 8.1.g Page 7 of 9 Rev. 0 Job Performance Checklist:
STEP/STANDARD SAT/UNSAT
( STEP 9.: [7] MONITOR pressurizer level control: - SAT
- UNSAT
- C HEC K pressurizer level greater than 17%.
- V ER IFY cha rging IN SERVICE.
- V ERIFY letdown IN SERVICE.
- C HEC K pressu rize r level trending to 25% (normal range 20% to 30%).
STANDARD: Determines Charging and Letdown are in service and PZR level is >17%
and trending to 25%.
STEP 10.: [8] MONITOR pressurizer pressure control: - SAT UNSAT
- Pressurizer pressure greater than 1870 psig. -
- Pressurizer pressure stable at or trending to 2 23 5 psig (normal range 221 0 psig to 22 6 a psig).
STANDARD: Deterrnines PZR pressure> 1870but NOT trending toward 2210-2260 psig.
EVALUATOR NOTE: JPM steps 11 ,12 and 13 are from procedure steo 8 RNO STEP 11 .: IF pressure less than 2235 psig and dropping, THEN - SAT PERFORM the following:
_ UNSAT
- ENSURE pressurizer PORVs CL OSE D. Critical Step
- IF spray valve(s) CANNOT be closed, THEN STOP RCP s #1 and 2.
- IF pressurizer pressure continues to drop, TH EN STO P additional RCPs as necessary.
- ENSURE all pressurizer heaters ON .
STANDARD: Stops Number 1 Rep by rotating handswitch counter-clockwise.
(
JPM B.1. g Page 8 of 9 Rev. 0 Job Performance Checklist:
( STEP 12.:
STEP/STANDARD IF pressure less than 2235 psig a nd dropping, THEN SAT/UNSAT PERFORM the following: - SAT
- UNSAT
- ENSURE pressurizer PORVs CLOSED.
- ENSURE spray valves CLOSED . Critical Step
- IF spray valve(s) CANNOT be closed , THEN STOP RCPs #1 and 2.
- IF pres surizer pressure continues to drop, THEN STOP addition al RCPs as necessary.
- ENSURE all pressurizer heaters ON.
STANDARD: Stops Number 2 RCP by rotating handswitch counter-clockwise, if candidate determ ines that RCSpressure continues to drop, additional RCPs may be stopped.
STEP 13.: IF pressure less than 2235 psig and dropping, THEN PERFORM the following : - SAT
- UNSAT
- ENSURE pressurizer PORVs CLOSED.
- ENSURE spray valves CLOSED. Critical Step
- IF spray valve(s) CANNOT be closed, THEN STOP RCPs #1 and 2.
- IF pressurizer pressure continues to drop, THEN STOP add itional RCP s as necessary.
- . ENSURE all pressurizer heaters ON.
I STANDARD: Manually energized PZR heater Bank D by rotating handswitch clockwise.
End of JPM
Page 9 of 9 Rev . 0 CANDIDATE CUE SHEET (TO BE RETURNED TO EXAMINER UPON COMPLETION OF TASK)
(
DIRECTION TO TRAINEE:
I will explain the initial conditions, and state the task to be performed. All control room steps shall be performed for this JPM, including any required communications. I will provide initiating cues and reports on other actions when directed by you. Ensure you indicate to me when you understand your assigned task. To indicate that you have completed your assigned task return the handout sheet I provided you .
INITIAL CONDITIONS:
Unit has tripped .
Transition to ES-O.1 has been performed .
INITIATING CUES:
You have been directed to stabilize the unit in accordance with ES-O.1, beginning at step 1.
Notify the SRO when the unit is stable
(
TENNESSEE VALLEY AUTHORITY SEQUOYAH NUCLEAR PLANT EOI PROGRAM MANUAL EMERGENCYSUBPROCEDURE ES-0.1 REACTOR TRIP RESPONSE Revision 30 QUALITY RELATED PREPARED/PROOFREAD BY: _ _..!o!...o...J~:::w..!~
D. A PORTER _
RESPONS IBLE ORGAN IZATION : ....;O~P!....!E:.!.RA=.!.T~IO~N!l:S'-- _
APPROVED BY:. ....l:.!.~..!=.b~.!...-
W 1. LEARY _
EFFECTIVE DATE: 08101/2005 REVISION DESCRIPTION: Added new step which checks generator PCBs open. This step is being relocated from E-Q Step 3 in conjunction with incorporation of E-OA. Revised step 11 .b to provide details on placing steam dumps in pressure mode.
This procedure has a handout page (2 copies) and foldout page.
SQN REACTOR TRIP RESPONSE ES*O.1 IRev. 30 FOLDOUT PAGE SI ACTUATION CRITERIA IF either of the following conditions occurs:
- Pressurizer level CANNOT be maintained greater than 5%,
THEN ACTUATE SI and GO TO E-D, Reactor Trip or Safety Injection .
EVENT DIAGNOSTICS IF both trains of shutdown boards deenergized, THEN GO TO ECA-D.O, Loss of All AC Power.
TANK SWITCHOVER SETPOINTS IF CST level less than 5%.
THEN ALIGN AFW suction to ERCW.
Page 1a of 15
SQN REACTOR T RIP RESPONSE ES-0.1
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Rev. 30 I
HANDOUT Page 1 of 2 STEP ACTION IF RCS subcooling based on core exit TICs less than 40'F FOP OR Pressurizer level CANNOT be maintained greater than 5%,
THEN ACTUATE SI and GO TO E-O, Reactor Trip or Safety Injection.
IF CST level less than 5%,
FOP THEN ALIGN AFW suction to ERCW.
- 1. MONITOR SI NOT actuated:
- 3. MONITOR RCS temperatures stable at or trending to between 547"F and 552 'F.
3.c. (if RCS temperature continues to drop)
RNO
- CONTROL total feed flow to minimize RCS cooldown .
- MAINTAIN total feed flow greater than 440 gpm UNTIL narrow range level greater than 10% in at least one S/G.
- 4. MONITOR feedwater status : (verify FVIII when T-avg less than SSO°F) 5.b. MONITOR RCS temperatures greater than 540°F.
- 7. MONITOR pressurizer level control: (pressurizer level greater than 17%)
7.a. (if pzr level less than 17%)
RNO 3) CONTROL charging to restore pressurizer level greater than 17%.
- 4) WHEN pressurizer level greater than 17%,
THEN OPERATE pressurizer heaters as necessary.
7.c.. (if letdown not in service)
RNO WHEN charging established AND pressurizer level greater than 17%,
THEN ESTABLISH letdown.
7 .d. (if pzr level is NOT trending to 25%)
RNO CONTROL charging and letdown to maintain pressurizer level at 25%
(normal range 20% to 30%).
- 8. MONITOR pressurizer pressure control : (pzr pressure greater than 1870 psig and stable at or trending to 2235 psig) a.b.2) (if pzr pressure greater than 2235 psig and rising)
RNO CONTROL pressure.
- 9. MA INTAIN SlG narrow range levels: (between 10% and 50%)
9.a. (if SIG levels less than 10%)
RNO MAINTAIN total feed flow greater than 440 gpm UNTIL level greater than 10% .
Page 1b of 15
SQN REACTOR TRIP RESPONSE IES-0.1 Rev. 30 HANDOUT Page 2 of 2 STEP ACTION 12.b.2). (if NO RCP can be started)
RNO MONITOR natural circulation.
- 13. MONITOR if source range channels should be reinstated :
(IRM flux less than 10. 4 % power)
- 15. MAINTAIN stable plant conditions:
- a. Pressurizer pressure at 2235 psig (normal range 2210 psig to 2260 psig)
- b. Pressurizer level at 25% (normal range 20 % to 30%)
- c. S/G narrow range levels between 10% and 50%
- d. RCS temperature at 547"F (between 540'F and 550'F)
Page 1c of 15
SQN REACTOR TRIP RESPONSE ES-0.1
_ __ _...L-IRev. 30 HANDOUT Page 1 of 2 STEP ACTION IF RCS subcooling based on core exit TICs less than 40"F FOP OR Pressurizer level CANNOT be maintained greater than 5%,
THEN ACTUATE SI and GO TO E*O, Reactor Trip or Safely Injection.
IF CST level less than 5%,
FOP THEN ALIGN AFW suction to ERCW.
- 1. MONITOR SI NOT actuated:
- 3. MONITOR RCS temperatures stable at or trending to between 547"F and 552"F.
3.c. (if RCS temperature continues to drop)
RNO
- CONTROL total feed flow to minimize RCS cooldown .
- MAINTAIN total feed flow greater than 440 gpm UNTIL narrow range level greater than 10% in at least one S/G.
- 4. MONITOR feedwater status: (verify FWl when T*avg less than 550"F) 5.b. MONITOR RCS temperatures greater than 540"F.
- 7. MONITOR pressurizer level control : (pressurizer level greater than 17%)
7.a. (if pzr level less than 17%)
RNO 3) CONTROL charging to restore pressurizer level greater than 17%.
- 4) WHEN pressurizer level greater than 17%,
THEN OPERATE pressurizer heaters as necessary .
7.c. (if letdown not in service)
RNO WHEN charging established AND pressurizer level greater than 17%,
THEN ESTABLISH letdown .
7.d. (if pzr level is NOT trending to 25%)
RNO CONTROL charging and letdown to maintain pressurize r level at 25%
(normal range 20% to 30%).
- 8. MONITOR pressurizer pressure control : (pzr pressure greater than 1870 pslg and stable at or trending to 2235 psig) 8.b.2) (if pzr pressure greater than 2235 psig and rising)
RNO CONTROL pressure.
- 9. MAINTAIN SIG narrow range levels : (between 10% and 50%)
9.a. (if S/G levels less than 10%)
RNO MAINTAIN total feed flow greater than 440 gpm UNTIL level greater than 10%.
Page 1d of 15
SQN REACTOR TRIP RESPONSE I ES*0.1 Rev. 30 HANDOUT Page 2 of2 STEP ACTION 12.b.2). (if NO RCP can be started)
RNO MONITOR natural circulation.
- 13. MONITOR if source range channels should be reinstated:
(IRM flux less than 10. 4 % power)
- 15. MAINTAIN stable plant conditions:
- a. Pressurizer pressure at 2235 psig (normal range 2210 psig to 2260 psig)
- b. Pressurizer level at 25% (normal range 20% to 30%)
- c. SIG narrow range levels between 10% and 50%
- d. RCS temperature at 547°F (between 540°F and 550°F)
Page 1e of 15
SQN REACTOR TRIP RESPONSE ES-O.1 Rev. 3D
I 1.0 PURPOSE This procedure provides the necessary Instructions to stabilize and control the plant following a reactor trip WITHOUT a safety injection.
2.0 SYMPTOMS AND ENTRY CONDITIONS 2.1 ENTRY CONDITIONS E-O Reactor Trip or Safety Injection
- SI NOT actuated and NOT required 3.0 OPERATOR ACTIONS Page 2 of 15
SQN REACTOR TRIP RESPONSE IES-O.1 Rev. 30 ISTEP II ACTION/EXPECTED RESPONSE II RESPONSE NOT OBTAINED NOTE This procedure has a foldout page.
- 1. MONITOR 81 NOT actuated: IF SI actuated, THEN
- SI ACTUATED permissive DARK GO TO E-O, Reactor Trip or Safety
[M-4A, D4] Injection.
- 2. VERIFY generator breakers OPEN. OPEN generator breakers .
Page 3 of 15
SQN REACTOR TRIP RESPONSE IES-O.1 Rev. 30 ISTEP II ACTION/EXPECTED RESPONSE I IRESPONSE NOT OBTAINED
- 3. MONITOR RCS temperatures: IF temperature less than 547 °F and dropping,
- IF any RCP running, THEN THEN PERFORM the following:
CHECK T-avg stable at or trending to
- a. ENSURE steam dumps and between 547 °F and 552°F.
atmospheric reliefs CLOSED.
OR b. ENSURE S/G blowdown isolation valves CLOSED.
- IF RCPs stopped , c. IF cool down continues, THEN THEN CHECK T-cold stable at or trending PERFORM the following:
to between 547 °F and 552°F.
- 1) CONTROL total feed flow USING EA-3-8 , Manual Control of AFWFlow.
- 2) MAINTAIN total feed flow greater than 440 gpm UNTIL narrow range level greater than 10%
in at least one S/G.
- 3) DEPRESS RESET on MSR control panel.
- 4) IF any MSR temp control valve fails to close ,
THEN ISOLATE HP steam to MSRs.
- d. IF cool down still continues, THEN CLOSE MSIVs and bypass valves.
IF temperature greater than 552 °F and rising, THEN
- DUMP steam to condenser.
OR DUMP steam USING atmospheric reliefs.
.~
Page 4 of 15
SQN REACTOR TRIP RESPONSE I ES-O.1
~ R_e_v_._3_0 _
ISTEP I IACTION/EXPECTED RESPONSE I IRESPONSE NOT OBTAINED
- 4. MONITOR feedwater status:
- a. T-avg less than 550°F. a. GO TO Step 5.
~
- b. MFW regulating valves CLOSED. b. CLOSE valves.
- c. MFW regulating bypass valve controller c. CLOSE valves.
outputs ZERO.
- d. MFW isolation valves CLOSED. d. CLOSE valves.
OR D1SPATCH personnel to isolate MFW regulating and regulating bypass valves USING EA-3-12, Local Isolation of Main Feedwater.
- g. Total feed flow to S/Gs g. ESTABLISH AFWflow greater than 440 gpm. as necessary.
IF AFW flow CANNOT be established, THEN ESTABLISH main feedwater flow USING EA-2-2, Establishing Secondary Heat Sink Using Main Feedwater or Condensate System.
Page 5 of 15
SQN REACTOR TRIP RESPONSE I~:~~*~O .1 ISTEP IIACTION/EXPECTED RESPONSE II RESPONSE NOT OBTAINED
- 5. CHECK if emergency boration is required:
- a. VERIFY all control rods fully inserted: a. IF any of the following conditions exists:
Rod bottom lights LIT
- two or more RPls indicate
- greater than 12 steps Rod position indicators less than or equal to 12 steps. OR
- two or more control rod positions CANNOT be determined, THEN EMERGENCY BORATE USING EA*68-4, Emergency Boration.
- b. MONITOR RCS temperature: b. EMERGENCY BORATE as necessary to maintain shutdown
- T-avg greater than 540* F margin USING EA-68-4, Emergency if any RCP running Boration .
- T-cold greater than 540*F if all Reps stopped.
- 6. ANNOUNCE reactor trip USING PA system.
Page 6 of 15
SQN REACTOR TRIP RESPONSE IES-O.1
_ _ _ _ _ _ _ _ _ _ _ ....;.R..:,.e_v ._3_0 _
ISTEP II ACnONIEXPECTED RESP ONSE II RESPONSE NOT OBTAINED
- 7. MONITOR pressur izer level control:
- a. CHECK pressurizer level a. PERFORM the following :
greater than 17%.
- 1) ENSURE normal and exces s letdown ISOLATED.
- 2) ENSURE pressurizer heaters OFF.
- 3) CONTROL charging to rest ore pressurizer level greater than 17%.
- 4) WHEN pressurizer leve l greater than 17%,
THEN OPERATE pressurizer heaters as necessary.
- b. VERIFY charging IN SERVICE. b. ESTABLISH charging USING EA-62-5. Establishing Normal Charging and Letdown.
- c. VERIFY letdown IN SERVICE. c. WHEN charging established AND pzr level greater than 17%,
THEN ESTABLISH letdown USING EA-62-5.
Establishing Normal Charging and Letdown.
- d. CHECK pressu rizer level d. CONTROL charg ing and letdown trend ing to 25% to maintain pressurizer level at 25%
(norma l range 20% to 30%). (normal range 20% to 30%).
Page 7 of 15
L-SQN
.....L..
REACTOR TRIP RESPONSE I ES -O.1 Rev. 30 I.
ISTEP IIACTIONfEXPECTED RESPONSE IIRESPONSE NOT OBTAINED
- 8. MONITOR pressurizer pressure control:
- a. Pressurizer pressure a. ENSURE SI ACTUATED.
greater than 1870 psig.
GO TO E-O, Reactor Trip or Safely Injection.
- b. Pressurizer pressure b. IF pressure less than 2235 psig stable at or trending to 2235 psig and dropping, (normal range 2210 psig to THEN 2260 psig). PERFORM the following:
- 1) ENSURE pressurizer PORVs CLOSED.
IF pressurizer PORV CANNOT be closed, THEN CLOSE its block valve.
- 2) ENSURE spray valves CLOSED .
IF spray valve(s) CANNOT be closed, THEN STOP RCPs #1 and 2.
IF pressurizer pressure continues to drop, THEN STOP additional Rep as necessary.
- 3) ENSURE all pressurizer heaters ON.
(step continued on next page)
Page 8 of 15
SQN REACTOR TRIP RESPONSE IES-0.1 Rev. 30 ISTEP II ACTION/EXPECTED RESPONSE IIRESPONSE NOT OBTAINED
- 8. b. (continued) IF pressure greater than 2235 psig and rising, THEN PERFORM the following:
- 1) ENSURE all pressurizer heaters OFF.
- 2) CONTROL pressure USING normal spray.
IF normal spray NOT available AND letdown in service, THEN CONTROL pressure USING EA-62-4, Establishing Auxiliary Spray.
IF normal spray NOT available AND letdown NOT in service, THEN ENSURE pressure controlled with pressurizer PORV(s).
- 9. MAINTAIN SIG narrow range levels:
- a. Greater than 10%. a. MAINTAIN total feed flow greater than 440 gpm UNTIL level greater than 10%
in at least one S/G.
- b. Between 10% and 50%. b. IF level in any SIG continues to rise, THEN ENSURE feed flow STOPPED to that SlG .
Page 9 of 15
SQN REACTOR TRIP RESPONSE I ES-0.1
_ _ _----' R_e_v_,3_0 _
ISTEP' IAcnONIEXPECTED RESPONSE IIRESPONSE NOT OBTAINED
- 10. VERIFY AC busses ENERGIZED PERFORM the following :
from start busses .
- a. ENSURE diesel generators supplying shutdown board loads as necessary:
- ERCW pumps .
- AFWpumps.
- Thermal barrier booster pumps.
- CCS pumps.
Pressurizer heaters A-A and B-B.
- b. ATTEMPT to restore offsite power USING EA-202-1 , Restoring Off-Site Power to 6900V Shutdown Boards.
- c. ENSURE control air compressors A and B started USING EA*32*2, Establishing Control and Service Air.
Page 10 of 15
SQN~
~I.-
REACTOR TRIP RESPONSE IES-O.1 R_8_V_._3_0 _
- -IIACTION/EXPECTED RESPONSE ISTEP I IRESPONSE NOT OBTAINED CAUTION Arming steam dumps In pressure mode with demand signal present could result in rapid RCS cooldown.
11, DETERMINE if steam dump to condenser available:
- a. CHECK condenser AVAILABLE: a, USE atmospheric reliefs In AUTO and set for 84% (1005 psig).
- c-s CONDENSER INTERLOCK permissive LIT [M-4A, E6l IF atmospheric reliefs NOT functioning in AUTO,
- At least one Intact S/G MSIV THEN OPEN, USE manual control of atmospheric reliefs, IF local control of atmospheric reliefs is necessary, THEN DISPATCH personnel to dump steam USING EA-1-2, Local Control of SIG PORVs.
GO TO Note prior to Step 12.
- b. PLACE steam dumps in STEAM PRESS mode:
- 1) PLACE steam dumps in OFF.
- 2) ENSURE steam dumps in steam pressure mode ,
- 3) ENSURE zero output (demand).
- 4) PLACE steam dumps in ON.
- 5) ADJUST steam dump controller setpoint to 84% (1005 psig) in AUTO, Page 11 of 15
SQN REACTOR TRIP RESPONSE IES-O.1
---J~R-e-v-.-3-0---
ISTEP IIACTION/EXPECTED RESPONSE II RESPONSE NOT OBTAINED NOTE Loop 2 RCP and associated spray valve will provide adequate spray flow for RCS pressure control. If Loop 2 is not available, all three remaining RCPs may be required to ensure adequate spray flow.
12 CHECK RCP #2 RUNNING. PERFORM the following:
- b. ATIEMPTto start RCP(s) to provide normal pzr spray :
IF NO RCP can be started, THEN MONITOR natural circulation USING EA-68-6, Monitoring Natural Circulation Conditions.
IF natural circulation CANNOT be verified, THEN RAISE steam dump rate.
Page 12 of 15
SQN REACTOR TRIP RESPONSE I ES-O.1 Rev. 30 ISTEP II ACTION/EXPECTED RESPONSE IIRESPONSE NOT OBTAINED
- 13. MONITOR if source range channels
-should be reinstated:
- a. CHECK intermediate range flux a. ~O TO Step 14-.
less than 10* 4 % power on operable channels.
- b. CHECK source range channels b. REINSTATE source range channels REINSTATED . by simultaneously placing both SRM TRIP RESET-BLOCK switches to RESET position . [M-4]
C. SELECT one SRM and one IRM on NR-45 recorder.
- d. ENSURE audio count rate operation.
- e. RESET shutdown monitor alarm setpoints. [M-13]
- f. WHEN shutdown monitor ALARM LEDs dark AND HIGH FLUX AT SHUTDOWN bistable lights dark, THEN PLACE HIGH FLUX AT SHUTDOWN alarm block switches in NORMAL.
[M-13]
Page 13 of 15
_ _ _ _..1.
[ REACTOR TRIP RESPONSE IES-O.1 R_e_v_,3_0 _
ISTEP II ACTION/EXPECTED RESPONSE IIRESPONSE NOT OBTAINED
- 14. SHUT DOWN unnecessary plant equipment:
- REFER TO O-GQ-12, Realignment Of Secondary Equipment Following ReactorlTurbine Trip.
- 15. MAINTAIN stable plant conditions:
- a. Pressurizer pressure at 2235 psig (normal range 2210 psig to 2260 psig)
- b. Pressurizer level at 25%
(normal range 20% to 30%)
- c. SIG narrow range levels between 10% and 50%
- d. ReS temperature at 547°F (between 540°F and 550°F) :
- T-avg if any Rep running OR
.* T-cold if all Reps stopped.
- 16. PERFORM EA-0-9, Post Trip Administrative Requirements and Recovery Actions.
Page 14 of 15
SQN REACTOR TRIP RESPONSE IES-0.1 Rev. 30 ISTEP II ACTION/EXPECTED RESPONSE I IRESPONSE NOT OBTAINED
- 17. DETERMINE if natural circulation cooldown is required:
- a. CHECK at least one RCP RUNNING. a. IF plant cooldown required with NO RCP available, THEN GO TO ES-0.2, Natural Circulation
--II Il_- -
Cooldown.
DO NOT CONTINUE this procedure UNTIL at least one RCP restarted .
- b. CHECK at least one AFW pump b. DO NOT CONTINUE this procedure AVAILABLE. UNTIL at least one AFW pump AVAILABLE.
~
- c. SELECT appropriate procedure:
- O*GO-6, Power Reduction from 30% Reactor Power to Hot Standby (if maintaining hot standby)
- 0-GO-7, Unit Shutdown from Hot Standby to Cold Shutdown OR
- other appropriate procedure as determined by Shift Manager or TSC (if manned).
--IIIIl_--
- d. GO TO appropriate plant procedure.
END Page 15 of 15
Page 12 of 12 Rev. 2 CANDIDATE CUE SHEET
( (TO BE RETURNED TO EXAMINER UPON COMPLETION OF TASK)
DIRECTION TO TRAINEE:
I will explain the initial conditions, and state the task to be performed. All control room steps shall be performed for this JPM, including any required communications. I will provide initiating cues and reports on other actions when directed by you. Ensure you indicate to me when you understand your assigned task. To indicate that you have completed your assigned task return the handout sheet I provided you.
INITIAL CONDITIONS:
Unit 1 had been in Mode 5 for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> to repair a leak on the #1 Steam Line.
Res boron is 1400 ppm and the previous shift determined that B Train RHR boron concentration is 1450 ppm.
Shutdown margin required boron concentration is 1200 ppm.
A Train RHR pump needs to be shutdown to allow MEG to add oil to the motor.
B Train RHR has been checked out locally by the Auxiliary Bldg. AUO and is ready for service.
INITIATING CUES:
You are the Unit 1 OATC and the SRO has directed you to place B Train RHR in service and take A Train RHR out of service.
Align B Train injection flowpath to loops 1 & 4.
Notify the SRO when you have B Train RHR in service.
(
J PM B.1.h Page 1 of 12 Rev . 2
(
SEQUOYAH NUCLEAR PLANT JOB PERFORMANCE MEASURE B.1.h JPM 152 Swap RHR Pumps (A Train to B Train)
With Level in the Pressurizer
(
Original Signatures on File PREPAREDI REVISED BY: Datel VALIDATE D BY:
- Datel APPROV ED BY: Datel (Ope rations Traini ng Manager)
CONCU RRED: ** Datel (Operations Representat ive)
- Validation not required for minor enhancements, proced ure Rev changes that do not affect the JPM , or individual step changes that do not affect the flow of the JPM.
(
JPM B.1.h Page 2 of 12 Rev. 2
( NUCLEAR TR AINING REVISIONIUSAGE LOG REVISION DESCRIPTION OF V DATE PAGES PREPAREDI NUMBER REVISION AFFECTED REVISED BY:
0 New Y 10/14/98 All JP Kearney penl ink 0-SO 1 Rev change only N 9/21 /99 4 SR Taylor penlink 0-SO 1 Rev change only N 8/29/00 4 SR Taylor penlink Updated references Y 2/5/01 2,4 GS Poteet pen/ink Updated reference N 12/10101 3 Lacy Pauley 1 Updated to current revision and simulator Y 8/25/04 All MG Croteau commands. Verify new IC-2 satisfactory.
2 Updated to current revision of procedure. N 2/5107 All RH Evans v - Specify if the JPM change will require another vaiidation (Y or N).
See cover sheet for criteria.
JPM B.1.h Pa ge 3 of 12 Rev. 2 SEQUOYAH NUCLEAR PLANT
( RO/SRO JOB PERFORMANCE MEASURE T as k: Swap RHR Pumps (A Train to B JAIT A task # : 0050030101 (RO)
Train ) with Level in the 0050080101 (RO)
Pressu rizer KiA Ratings:
005K4.03 (2.9/3.2 ) 005A1.01 (3.5/3.6) 005A4 .02 (3.4/3.1) 005K4.10 (3.1/3.1) 005A1.02 (3.3/3.4) 005A4 .01 (3.6/3.4)
Task Standard:
'8" Train RHR is placed in service inject ing to Loops 1 & 4.
Evaluation Method : x _ In-Plant Simulator _...L:>.._ _
==~===================================================== === = == = == == == == = = = = = == = = = =
Performer:
NAME Start time _
Performance Rating: SAT UNSAT Performance Time Finish time _
Evaluator: _ _ __ _ _ _ _ ----1 _
SIGNATURE DATE
-( ~= = = = = = = == === = = = = = = == = = ========== ==================== == = == = ===== = = = ======= == = = = = == = =
COMMENTS
JPM B.1.h Page 4 of 12 Rev. 2 SPECIAL INSTRUCTIONS TO EVALUATOR:
( 1. Sequenced steps identified by an "s"
- 2. Initialize IC-2. Ensure A Train RHR is in service with flow aligned through FCV-63-93 to Loops 2 & 3.
- 3. A Console operator will be required at steps 4, 8, & 10.
- 4. An extra operator will be required to acknowledge alarms and monitor S/G levels, RCS temp, RCS press ..
- 5. Any UNSAT requires comments
- 6. Ensure operator performs the following required actions for SELF-CHECKING;
- a. Identifies the correct unit, train , component, etc.
- b. Reviews the intended action and expected response.
- c. Compares the actual response to the expected response.
Validation Time: CR. 11 minutes Local _
Tools/Equipment/Procedures Needed:
0-SO-74-1 , Section 8.
3.2 REFERENCES
Reference Title Rev No.
0-SO-74-1 Residual Heat Removal S stem 61
=================================================================
READ TO OPERATOR Directions to Trainee:
I will explain the initial conditions, and state the task to be performed. All control room steps shall be performed for this JPM . I will provide initiating cues and reports on other actions when directed by you.
When you complete the task successfully, the objective for this job performance measure will be satisfied.
Ensure you indicate to me when you understand your assigned task. To indicate that you have completed your assigned task return the handout sheet I provided you and to indicate completion of your answer to a knowledge question return the written copy of the question to me.
INITIAL CONDITIONS:
- 1. Unit 1 had been in Mode 5 for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> to repair a leak on the #1 Steam Line.
- 2. RCS boron is 1400 ppm and the previous shift determined that B Train RHR boron concentration is 1450 ppm.
- 3. Shutdown margin required boron concentration is 1200 ppm.
- 4. A Train RHR pump needs to be shutdown to allow MEG to add oil to the motor.
INITIATING CUES:
You are the Unit 1 OATC and the SRO has directed you to place B Train RHR in service and take A Train RHR out of service. Align B Train injection flowpath to loops 1 & 4.
Notify the SRO when you have B Train RHR in service.
JPMB.1 .h Page 5 of 12 Rev. 2 Job Performance Checklist:
( STEP/STANDARD
- SAT/U NSAT STEP 1.: Obtain copy of 0-SO-74-1 and determ ine appropriate section - SAT
- UNSAT STAN DARD: Operator obtains a copy of 0-SO-74-1 and goes to Section 8.3.2.
Start Time__
COMM ENTS:
STEP 2.: [1) IF adjustment is required on CCS flow throug h RHR Hxs, T HEN - SAT ENSURE [FCV-70-153) RHR Hx B CCS outlet is THROTTLED.
- UNSAT NOTE: Ope rator may deci de to keep FCV-70-153 Open STANDAR D: Operato r ensures HS-70-153 has a RED & GREEN light LIT with fiow indicated on 0-M-27A.
COMMENTS:
I c STEP 3.: [2) ENSURE [FCV-74-28) RHR Hx B Outlet is CLOSED. - SAT
- UNSAT STANDARD: Operator ensures FCV-74-28 RHR Hx B Outlet CLOSED, FIC-74-28 @
100%.
90MM ENTS:
STEP 4.: [3) STAR T RHR Pump B-B with [HS-74-20A). - SAT
- UNSAT STANDARD : Operator starts 1B-B RHR Pump, verifies RED light LIT on HS. This step is criti cal to place th e B t rai n RHR Pu mp in serv ice. Critical Step COMM ENTS:
JPM B.1.h Page 6 of 12 Rev. 2 Job Performance Checklist:
( STEP/STAN DARD SAT/UNSAT STEP 5.: [4] VERIFY [FC V*74*24] RHR Pump B-B miniflow OPENS - SAT OR - UNSAT greater than 500 gpm in indicated on FI-74-24 .
Cue: IF dispatched: FI*74*24 indicates -550 gpm.
STANDARD: Operator verifies FCV-74-24 is open by Red light LIT on handswitch or checks with AUO locally to verify >500 gpm flow indicated on local flow indicator F[-47-24.
COMMENTS:
STEP 6.: [5] IF aligning Train B RHR cooling to loops 1 and 4, THEN PERFORM the - SAT following:
[aJ ENSURE [FCV-63-94] OPEN. - UNSAT
[b] ADJU ST [FCV-74-28] to establish flow from train B RHR.
[cJ ADJUST [FCV-74-16] AND [FCV-74-32] to reduce Train A RHR flow.
STANDARD: Operator performs the following:
Critical Step
- ENSURE FCV*63*94 OPEN
- ADJUS T FCV*74*28 RHR Hx B Outlet OPEN, using FIC-74-28 CLOSE FCV-74-16 RHR Hx A Outlet, place FIC-74-16 @ 0%. This step is criti cal to align the B train RHR Pump flow path to the RCS.
COMMENTS:
l
JPM B.1.h Page 7 of 12 Rev. 2 Job Performance Checklist:
( STEP/STANDAR D SAT/UNSAT STEP 7.: [d] VERIFY FCV-74-12 RHR Pump A-A miniflow OPENS - SAT OR - UNSAT greater than 500 gpm in indicated on FI-74-12.
Cue: IF dispatched: FI-74-12 indicates -550 gpm.
STANDARD: Operator verifies FCV-74-12 is open by Red light LIT on handswitch or checks with AUO locally to verify >500 gpm flow indicated on local flow indicator FI-47-12.
COMMENTS:
STEP 8.: [e] CLOSE [FCV-74-33] RHR Hx A Outlet. - SAT
- UNSAT STANDARD: Operator closes FCV-74-33. This step is critical to isolate A train Critical Step c COMMENTS:
ST EP 9.: [f] ENSURE [FCV-74-35] RHR Hx B Outlet OPEN. - SAT STANDARD: Operator ensures FCV*74*35 RHR Hx B Outlet OP EN. - UNSAT COMMENTS:
JP M B.1.h Page 8 of 12 Rev. 2 Job Performance Checklist:
( STEP/STANDARD SAT/UNSAT STEP 10.: [9] OPEN [VLV*74-531] RHR Hx B to Letdown Hx. - SAT NOTE: Console operator needs to modify remote function RHR04 to 100. - UNSAT Cue: Open HCV*74*531 as an AUO local/y.
STANDARD: Operator directs an AUO to OPEN HCV-74-531 RHR Hx B to Letdown Critical Step Hx. This step is crilicalto align B train RHR Pump for CVCS letdown.
COMMENTS:
STEP 11.: [h] STOP RHR Pump A-A with [HS-74-10A]. - SAT
- UNSAT STANDARD: Operator stops RHR pump 1A*A, verifies GREEN light on handswitch.
This step is critical to remove the A train RHR Pump from service. Cr itical Step CO MM ENTS~
STEP 12.: [i] OPEN [HCV-74 -37] RHR Hx B Bypass. - SAT NOTE: Console operator needs to modify remote fu nction RHR07 to 100. - UNSAT Cue: Open HCV*74*37 as an AUO locally (including IV).
Cri tical Step STANDARD: Operator directs an AUO to OPEN HCV*74-37 RHR Hx B Bypass.
This step is cr it ical to align the B train RHR HX bypass valve so operator can control HX outlet temperature.
COMMENTS:
(
JP M B.1.h Page 9 of 12 Rev. 2 Job Performance Checklist:
( STEP/STANDARD SAT/UNSAT STEP 13.: Ul CLOSE IHCV-74-36! RHR Hx A Bypass. - SAT NOTE: Console operator needs to modify remote fu nction RHR06 to O. - UNSAT Cue: Close HCV-74-36 as an AUO locally (including IV).
Critical Step STANDARD: Operator directs an AUO to CLOSE HCV-74-36 RHR Hx A Bypass.
Th is step is critical to isolate the A train RHR HX bypass valve.
COMMENT S:
STEP 14.: [k] CLOSE [HCV-74-530] RHR Hx A-A to Letdown Hx. - SAT NOTE : Console operator needs to modify remote function RHR03 to O. - UNSAT Cue: Close HCV-74*530 as an AUO locally (including IV).
STANDARD: Operator directs an AUO to close HCV-74-530. This step is critical to isolate the A train RHR flow path to CVCS letdown.
COMMENTS:
STEP 15.: [I] ENSURE [FCV*63-93] CLOSED. - SAT
- UNSAT STANDARD: Operator ensures FCV-63-93 CLOSED. This step is critical to isolate Critical Step the A train RHR RCS injection low path.
.COMMENTS :
(
JPM B.1.h Page 10 of 12 Rev . 2 Job Performance Checklist:
( STEP/STANDARD SAT /UNSAT STEP 16.: [6] IF aligning RHR cooling to loops 2 and 3, THEN PERFORM the - SAT following:
- UNSAT NOTE: Step is NA'd, initiating Cues direct alignment to loops 1 &4.
STANDARD: Ope rator NA's the step.
COMMENTS:
STEP 17.: [7] THROTTLE one or both of the following to maintain desired cooling - SAT rate: (N/A if not throttled) :
- UNSAT FCV-74-28, RHR Hx B Outlet, FCV-74-32, RHR Hx Bypass.
Critical Step STAI\!DARD : Operator throttles open FCV-74-28 and/or FCV-74-32 to stabilize RCS temperature and estab lish RHR flowrates at approximately the same values that were present prior to the flowpath realignment. This step is critical to control RCS cooldown rate.
c COMMENTS:
I I STEP 18.~~] WHEN injection flow is > 1250 gpm, THEN VERIFY [FCV-74-24] RHR Pump B-B miniflow is CLOSED.
- SAT
- UNSAT STANDARD: Operator verifies FCV-74-24 closed, GREEN light LIT on handswitch .
COMMENTS:
JPM B.1.h Page 11 of 12 Rev . 2 Job Performance Checklist:
( STEP/STANDARD SAT/UNSAT STEP 19.: [9] IF cooling water is to be removed from Train A Hx, THEN - SAT CLOSE [FCV-70-1561. - UNSAT Cue: Lea ve cooling water aligned to A Train at its current fJowrate.
STANDARD: Operator NA's step.
COMMENTS:
STEP 20.: Notify U1 US that B train of RHR Is in service to loops 1&4 and A train of - SAT RHR has been removed from service.
- UNSAT STANDARD: None. Stop Time__
90MMENTS:
c End of JPM
(
SQN RESIDUAL HEAT 0-50-74-1
(
[---l--_ _---'------------'
Unit 1,2 REMOVAL SYSTEM Rev: 61 Page 132 of 204 Date _
8.3.2 Placing Train B in Service and Removing Train A from Service.
CAUTION CCS flow should be adjusted to provide adequate flow through the RHR Hx to prevent RHR Hx CCS outlet temperature from exceeding 145°F. The RHR Hx CCS outlet temperature alarm will come in a 115°F.
NOTE The following steps may require operators in both heat exchanger rooms and one outside the pump rooms.
[1] IF adjustment is required on CCS flow through RHR Hxs, THEN ENSURE [FCV-70-153] RHR Hx s ccs outlet is THROTTLED.
[2] ENSURE [FCV-74-28] RHR Hx B Outlet is CLOSED.
CAUTION 1 Failure to maintain shutdown cooling flow rate for an RHR pump at the maximum possible could result in reduced thrust bearing life.
[C.3]
CAUTION 2 If RHR pressure downstream of pumps exceeds 600 psig, then RHR discharge pressure must be reduced below 600 psig or RHR isolated from the RCS within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.
NOTE RHR motor lower bearing oil level will increase after pump is started and may increase above sightglass. The presence of oil can be verified by a golden tint in sightglass.
[3] START RHR Pump B-B with [HS-74-20Al
[4] VERIFY [FCV-74-24] RHR Pump B-B miniflow OPENS OR greater than 500 gpm is indicated on FI-74-24.
SQN RESIDUAL HEAT 0-SO-74-1 REMOVAL SYSTEM
( 1,2 Rev: 61 Page 133 of 204 Unit _ Date _
8.3.2 Placing Train B in Service and Removing Train A from Service (Continued)
CAUTION 1 To reduce vibration across FCV*74-16 and FCV-74-28 (RHR Hx Outlet Valves), RHR must be aligned to only two cold legs with one train in service.
CAUTION 2 Operating RHR pumps in parallel (HCV-74-36 and HCV-74-37 OPEN OR 74-530 and 74-531 OPEN) and on miniflow for > 10 minutes may result in pump damage due to one pump dead-heading. [C.2] [C.13]
NOTE Step 5[b] and [c] may be performed together to ensure continuous flow delivered to RCS.
[5] IF aligning Train B RHR cooling to loops 1 and 4, THEN PERFORM the following:
(
[a] ENSURE [FCV*63-94] OPEN.
[b] ADJUST [FCV-74-28] to establish flow from Train B RHR.
[c] ADJUST [FCV-74-16] AND [FCV-74-32] to reduce Train A RHR flow.
[d] VERIFY [FCV-74-12] RHR Pump A-A miniflow OPENS OR greater than 500 gpm is indicated on FI-74-24.
(
SQN RESIDUAL HEAT 0-SO-74-1
( 1,2 REMOVAL SYSTEM Rev: 61 Page 134 of 204 Unit _ Date _
8.3.2 Placing Train B in Service and Removing Train A from Service (Continued) tel CLOSE [FCV-74-331 RHR Hx A Outlet.
[f) ENSURE [FCV-74-35] RHR Hx B Outlet OPEN.
[g) OPEN [VLV-74-531] RHR Hx B to Letdown Hx.
1~ CV
[h) STOP RHR Pump A-A with [HS-74-10AJ.
[i) OPEN [HCV-74-37] RHR Hx B Bypass.
1~ CV
[j] CLOSE [HCV-74-36] RHR Hx A Bypass.
1~ CV
[k] CLOSE [VLV-74-530] RHR Hx A to Letdown Hx.
1" CV
[I] ENSURE [FCV-63-93] CLOSED.
(
SQN RESIDUAL HEAT 0-50-74-1
( REMOVAL SYSTEM Rev: 61 1,2 Page 135 of 204 Unit _ Date _
8.3.2 Placing Train B in Serv ice and Removing Train A from Service (Continued)
CAUTION 1 To reduce vibration across FCV-74-16 and FCV-74-28 (RHR Hx Outlet Valves), RHR must be aligned to only two cold legs with one train in service.
CAUTION 2 Operating RHR pumps in parallel (HCV-74-36 and HCV-74-37 OPEN OR 74-530 and 74-531 OPEN) and on miniflow for> 10 minutes may result in pump damage due to one pump dead-heading. [C.2) [C.13)
NOTE Step 6[d) and [e) may be performed together to ensure continuous flow delivered to RCS.
[6] IF aligning Train B RHR cooling to loops 2 and 3, THEN PERFORM the following:
[a) ENSURE [FCV-63-93) OPEN.
[b] ENSURE [FCV-74-33] RHR Hx A Outlet OPEN.
[c] ENSURE [FCV-74-35) RHR Hx B Outlet OPEN.
[d] A DJ UST [FCV-74-28) to establish Train B RHR flow.
[e] ADJUST [FCV-74-161 and [FCV-74-321 to reduce Train A RHR flow.
[f] VERIFY [FCV-74-12] RHR Pump A-A miniflow OPENS or greater than 500 gpm is indicated on FI-74-24.
[g) OPEN [VLV-74-5311 RHR Hx B to Letdown Hx.
( 1" CV
C~
N RESIDUAL HEAT 0-SO-74-1
( REMOVAL SYSTEM Rev: 61 1,2 Page 136 of 204 Unit _ Date _
8.3.2 Placing Train B in Service and Removing Train A from Service (Continued)
[h] STOP RHR Pump A-A with [HS-74-10A].
[i] OPEN [HCV-74-37] RHR Hx B Bypass.
st 1 cv
[j] CLOSE [HCV-74-361 RHR Hx A Bypass.
1" cv
[k] CLOSE [VLV-74*530] RHR Hx A to Letdown Hx.
st 1 cv c [I] ENSURE [FCV-63-94] CLOSED.
NOTE One or both of the valves in the next step may be throttled to maintain RCS at desired temperature.
[7] THROTTLE one or both of the following to maintain desired cooling rate (N/A if not throttled):
VALVE NO. FUNCTION INITIALS FCV-74-28 RHR Hx B Outlet FCV*74*32 RHR Hx Bypass
[8] WHEN injection flow is > 1250 gpm, THEN VERIFY [FCV-74-24] RHR Pump B-B miniflow is CLOSED.
[9] IF cooling water is to be removed from Train A Hx, THEN CLOSE [FCV 156].
( END OF TEXT