ML20206N514

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Rev 2 to Abnormal Operating Instruction S023-13-17, Recovery from Inadvertent Safety Injection,Containment Isolation or Containment Spray
ML20206N514
Person / Time
Site: San Onofre  Southern California Edison icon.png
Issue date: 04/25/1996
From: Sewell S
SOUTHERN CALIFORNIA EDISON CO.
To:
Shared Package
ML20206N476 List:
References
S023-13-17, S23-13-17, NUDOCS 9905170251
Download: ML20206N514 (11)


Text

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NUCLEAR ORGANIZATION ABNORMAL OPERATING INSTRUCTION S023-13-17 l UNITS 2 AND 3 REVISION 2 PAGE 1 0F 10 EFFECTIVE DATE APR 2 51996 l

RECOVERY FROM INADVERTENT SAFETY INJECTION, CONTAINMENT ISOLATION OR CONTAINMENT SPRAY TABLE OF CONTENTS l SECTION g 1.0 SYMPTOMS 2 l

2.0 IMMEDIATE OPERATOR ACTION (S) 2 l 3.0 SUBSEQUENT OPERATOR ACTIONS 2

4.0 REFERENCES

7 5.0 RECORDS 7 ATTACHMENTS 1 Containment Spray Affected Equipment 8 Rf.WD # ,

l APR 251996 5tEFILE#

. v ..

T17-2.wS1 QA PROGRAN AFFECTING Scott Sewell 9905170251 PDR 990513 ADOCK 05000361 PDR

l NUCLEAR ORGANIZATION ABNORMAL OPERATING INSTRUCTION S023-13-17 UNITS 2 AND 3 REVISION 2 PAGE 2 0F 10 RECOVERY FROM INADVERTENT SAFETY INJECTION. CONTAINMENT ISOLATION l OR CONTAINMENT SPRAY 1.0 SYMPTOMS l 1.1 SIAS Actuation Train A (B)

I 1.2 CIAS Actuation Train A (B) l 1.3 CSAS Actuation Train A (B) 1.4 HPSI, LPSI and Containment Spray Pumps running.

1.5 Safety Injection and Emergency Boration Valves aligned for injection to the RCS.

1.6 BAMU Pumps auto start.

1.7 Emergency HVAC and Emergency Chilled Water Systems auto start.

1 1.8 CCW Non-Critical Loop Isolation Valves close.

1.9 IE 4kv Bus Tie Breaker controls automatically transfer to manual.

2.0 IMMEDIATE OPERATOR ACTIONfS) PERF. BY

[1] INITIALS 2.1 None 3.0 SUBSE0 VENT ACTIONS 3.1 With a CIAS actuation, proceed as follows:

3.1.1 1E operating, IBEN trip the Reactor and Turbine and initiate S023-12-1.

3.1.2 After CEAs have been inserted for greater than 5 seconds as indicated by CEA bottom lights, than Stop all RCPs.

3.1.3 Recover from loss of CCW to Containment by initiating 5023-13-7.

3.1.4 if the Unit was Operating, than terminate use of this procedure and GO TO S023-12-1.

3.1.5 If the Unit was not operating, 1 hen GO TO Section 3.9 for spurious CIAS evaluation.

[1] The INITIAL column is an operator aid and is intended to be used as follows: Initial each completed action. Do not write N/A. Leave blank items that are not applicable. Proceed through the instruction performing all applicable steps, frequently rechecking those steps passed over to ensure action is taken when applicable.

NUCLEAR ORGANIZATION ABNORMAL OPERATING INSTRUCTION S023-13-17 UNITS 2 AND 3 REVISION 2 PAGE 3 0F 10 3.0 SUBSE0 BENT ACTIONS (Continued) PERF. BY

[1] 1NITIALS 3.2 With a SIAS actuation, proceed as follows:

3.2.1 Verify Pressurizer Pressure - greater than the SIAS Setpoint (a 1740 psia).

3.2.2 Verify Containment Pressure - less than 3.4 psig.

3.2.3 Verify Core Exit Saturation Margin - greater than 20aF:

QSPDS page 611 CFMS page 313 3.2.4 Verify Pressurizer Level greater than or equal to 27%.

3.3 H the criteria of Step 3.2 are NOT SATISFIED, lhen e Trip the Reactor and Turbine and GO TO S023-12-1.

Terminate use of this procedure.

3.4 If The criteria of Step 3.2 ARE SATISFIED, than perform the following: i t

3.4.1 Initiate 5023-3-2.22, attachment for SIAS/CCAS Actuation Verification.

1 3.4.2 GO TO Section 3.6 for recovery from an '

inadvertent SIAS.

3.4.3 Notify opposite unit SRO that 5023-3-3.23, Attachment for A. C. Sources Verification, must be completed within one hour, due to the IE 4kv Bus Tie Breaker Controls being in MANUAL.

3.5 With a CSAS actuation, proceed as follows:

3.5.1 Verify Containment Pressure - less than 14.0 psig.

3.5.2 If Containment Pressure is greater than 14.0 psig, th10 ENSURE the Reactor and Turbine are tripped and GO TO S023-12-1. Terminate use of this procedure.

3.5.3 If Containment Pressure is less than 14.0 psig, than perform the following:

.1 OVERRIDE and STOP running Containment Spray Pumps.

.2 CLOSE the Containment Spray Header Isolations:

2 HV-9367 MP-012 2 HV-9368 MP-013

.3 GO TO Section 3.8 for recovery from an inadvertent CSAS.

r l

l NUCLEAR ORGANIZATION ABNORMAL OPERATING INSTRUCTION S023-13-17 UNITS 2 AND 3 REVISION 2 PAGE 4 0F 10 3.0 ElBSE0 VENT ACTIONS (Continued) PERF. BY

[1] INITIALS 3.6 Recover from inadvertent SIAS, as follows:

NOTE: Sections 3.6 and 3.7 may be performed concurrently.

t 3.6.1 Reduce Turbine Load as necessary to maintain Turbine Power matched with Reactor Power.

CAUTION The following step places the Unit in a Tech. Spec. 3.0.3 [TSIP LCO 3.0.3]

action by rendering all Curging Pumps inoperable. SIAS shall be Reset within R l one hour; otherwise Tech. Spec. 3.0.3 i

[TSIP LCO 3.0.3] shall be ccmplied with. l l (This is an approved entry into Tech.

l Spec. 3.0.3 [TSIP LCO 3.0.3])

l l

3.6.2 After ensuring CVCS Letdown is isolated, then Override and Stop all Charging Pumps.

3.6.3 Override and Stop BAMU Pumps P-174 and P-175.

3.6.4 Override and Open HV-5388, Instrument Air to l

Containment Isolation Valve.

l 3.6.5 Override and Open RCP Bleed-off to VCT Isolation '

Valves:

HV-9217 HV-9218 3.6.6 Stop unloaded Diesel Generators.

3.6.7 After verifying SIAS/CCAS Actuation (initiated in Step 3.4.1),.than perform S023-3-2.22, attachment for SIAS/CCAS and CIAS Reset.

3.6.8 Open LV-02278, VCT T-077 Outlet Valve.

3.6.9 Ensure Closed LV-0227C, RWT T-006 to Charging Pumps Gravity Feed Valve.

3.6.10 Close BA Tank to Charging Pump Gravity Feed Valves:

HV-9235 i

HV-9240

NUCLEAR ORGANIZATION ABNORMAL OPERATING 1NSTRUCTION S023-13-17 UNITS 2 AND 3 REVISION 2 PAGE 5 0F 10 3.0 SUBSE0 VENT ACTIONS (Continued) PERF. BY

[1] INITIALS 3.6.11 Close HV-9247, Emergency Boration Block Valve.

NOTE: Charging Pump suction lines may have elevated Boric Acid Concentrations.

3.6.12 Restore Charging and Letdown per S023-3-2.1 3.7 Restore the following loads as required to support plant operation.

NOTE: With SIAS actuation present the following loads are restored by placing the Control Room handswitch to Override.

3.7.1 2A0416 NON 1E UPS Normal (3A0412) Feeder (HS-1738-1) 3.7.2 B0402 Pressurizer Backup Heater (HS-0100F1) 3.7.3 B0602 Pressurizer Backup Heater (HS-010012)

NOTE: The following loads are restored by placing the Override /Off switch at the breaker to Override.

3.7.4 BS11 Fire Detection and Actuation Systems (BS12) UHF Radio System 2(3)L-414 3.7.5 BZ11 Essential Lighting System 2/3LP-35A(B) 3.7.6 BY19 Essential Lighting System 2/3LP-35B(A) Alternate Supply 3.7.7 BQ11 Dose Assessment Computer Air Conditioner 3.7.8 BY33 2(3)Q071 (CFMS, EPPM L-411) ALT AC Source grid if aligned Panel 2/3Q072 (DAC, TSC Computer) l

NUCLEAR ORGANIZATION ABNORMAL OPERATING INSTRUCTION 5023-13-17 UNITS 2 AND 3 REVISION 2 PAGE 6 0F 10 3.0 SUBSE00ENT ACTIONS (Continued) PERF. BY

[1] INITIALS 3.8 Recover from inadvertent CSAS, as follows:

3.8.1 Verify proper actuation per S023-3-2.22, attachment for CSAS Actuation Verification.

3.8.2 H Containment pressure is less than 3.4 psig THEN perform 5023-3-2.22, attachment for CSAS Reset and Restoration.

.1 Initiate Attachment I for Inspection of affected equipment.

3.9 Evaluate Spurious CIAS, as follows:

3.9.1 Verify proper actuation per S023-3-2.22, attachment for CIAS Actuation Verification.

3.9.2 H Containment pressure is less than 3.4 psig IEEN perform S023-3-2.22, attachment for CIAS Restoration.

NOTE: Step 3.10 and 3.11 may be performed concurrently.

3.10 E SIAS has been Reset, THEN realign SIAS actuated equipment as applicable for required plant conditions per S023-3-2.22, attachment for SIAS/CCAS Restoration.

3.11 If Shutdown Cooling System is in operation, then restore SDCS per 5023-3-2.6.

3.12 The Shift Superintendent shall notify the Plant Superintendent (or designee) and Shift Technical Advisor, and discuss the situation to determine the requirement for event classification per S0123-VIII-l and reporting requirements of S0123-0-14.

3.13 Investigate the cause of inadvertent safety injection and initiate maintenance action, if necessary.

3.13.1 Review logs and WARS for approved maintenanco activity which may have potential for ESFAS actuation.

3.14 Log inadvertent Safety Injection / Containment Isolation /

Containment Spray per 50123-0-42.

3.14.1 TERMINATION DATE TIME UNIT

NUCLEAR ORGANIZATION ABNORMAL OPERATING INSTRUCTION S023-13-17 UNITS 2 AND 3 REVISION 2 PAGE 7 0F 10

4.0 REFERENCES

4.1 NRC Commitment 4.1.1 Technical Specifications (TSIP when implemented) lR j 4.2 Procedures l I

4.2.1 S0123-VIII-1, " Recognition and Classification of Emergencies" 4.3 Operating Instructions 4.3.1 50123-0-14, " Notification and Reporting of Significant Events" 4.3.2 S0123-0-25, " Trip /Transi'nt Review" 4.3.3 S0123-0-42, " Cumulative Equipment Hours, Inoperability, and Design Cycles" 4.3.4 S023-1-5.1, " Auxiliary Building Emergency HVAC System Operation" 4.3.5 S023-2-8, " Saltwater Cooling System Operation" .

l 4.3.6 S023-2-17, " Component Cooling Water System Operation" l 4.3.7 S023-3-2.1., "CVCS Charging and Letdown" 4.3.8 S023-3-2.6, " Shutdown Cooling System Operation" 4.3.9 S023-3-2.7, " Safety Injection System Operation" 4.3.10 S023-3-2.22, " Engineered Safety Features Actuation System Operation" 4.3.11 S023-3-3.23, " Diesel Cm M or honthly Tesc" 4.3.12 S023-3-3.29, ' Determination of Reactor Shutdown Margin" 4.3.13 S023-5-1.5, " Plant Shutdown Hot Standby to Cold Shutdown" 4.3.14 S023-12-1, " Standard Post Trip Actions" 4.3.15 S023-13-7, " Loss of Component Cooling / Saltwater Cooling Water"

, 4.3.16 S023-15-57A(B), " Annunciator Panel 57A(B), Train A(B)

Safety Injection" 5.0 RECORDS 5.1 Upon termination of this procedure and applicable attachments, file per 50123-0-25.

5.2 Make appr priate C.O. log entries stating time, equipment actuated, and durat on of incident.

T17-2.wS1

NUCLEAR ORGANIZATION ABNORMAL OPERATING INSTRUCTION S023-13-17 UNITS 2 AND 3 REVISION 2 PAGE 8 0F 10 ATTACHMENT 1 CONTAINHENT SPRAY AFFECTED E0VIPMENT OBJECTIVE To ascertain the impact on plant systems / components in the event of an inadvertent containment spray actuation.

PERF. BY 1.0 PRERE0VISITES INITIALS 1.1 Verify this document is current by checking a controlled copy or by using the method described in S0123-VI-0.9.

2.0 PROCEDURE 2.1 Request Station Technical to estimate the amount of water that entered Containment and account for removal of the water.

]

Person Notified Name Time 2.2 Request Station Technical to perform an inspection.

The inspection should include, but is not limited to, the following equipment and areas:

Person Notified Name Time 2.2.1 ESF piping and mechanical equipment outside of containment.

2.2.2 All accessible components inside containment which should include the following:

  • Valves
  • Safety Injection Tanks Sections of uninsulated piping
  • Electrical terminators, Junction Boxes, etc.

which could result in premature equipment failure or degradation

  • Normal and Emergency Containment Coolers
  • Transmitters, accessible portions
  • Trisodium Phosphate
  • Area Rad Monitors

.1 Inspect RCP Lube Oil Collection Drain Tanks and drain if necessary.

ATTACHMENT 1 PAGE 1 0F 3

NUCLEAR ORGANIZATION ABNORMAL OPERATING INSTRUCTION S023-13-17 UNITS 2 AND 3 REVISION 2 PAGE 9 0F 10 ATTACHMENT 1 2.0 PROCEDURE (Continued) 2.2.2.2 If Unit is brought off-line, than inspect all accessible components inside the bioshield and Reactor Cavity which should include the following:

= Reactor Coolant Pumps; general inspection, Oil Collection Subsystem 1

  • Reactor Vessel Cavity Area a Reactor Head Area
  • General Area inside bioshield
  • Junction Boxes
  • Valves and piping
  • CEDM cables and connectors i

l l

ATTACHMENT 1 PAGE 2 0F 3

NUCLEAR ORGANIZATION ABNORMAL OPERATING INSTRUCTION S023-13-17 UNITS 2 AND 3 REVISION 2 PAGE 10 0F 10 ATTACHMENT 1 2.0 PROCEDURE (Continued)

COMENTS:

PERF. BY l INITIALS Attachment completed / and log entry made. I DATE TIME C.O. l REVIEWED BY: DATE:

SR0 Ops. Supv.

FILE DISPOSITION: File per S0123-0-25.

l T17-2.wS1 ATTACHMENT 1 PAGE 3 0F 3

Attachment C - Emergency Operating Procedure SO23-12-1 " Standard Post Trip Actions"