ML20203J919

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Rev 6 to AP-1080, Refueling Canal Level Lowering
ML20203J919
Person / Time
Site: Crystal River Duke Energy icon.png
Issue date: 12/10/1997
From:
FLORIDA POWER CORP.
To:
Shared Package
ML20203J799 List:
References
AP-1080, NUDOCS 9712220132
Download: ML20203J919 (25)
v • d • e


Text

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INFORMAT!ON RCLL [_ hQ7 --

- -- 4 AP-1080 REFUELING CANAL LEVEL LOWERING 1.0 ENTRY CONDITIONS J1 unexpected lowering of refueling canal level occurs, ItiLU use this procedure.

2.0 IM E ATE ACTIONS HQlE There are no imediate actions for this procedure.

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9712220132 971211 PDR ADOCK 05000302 P PDR f]

Approved by MNP0 // Date/2 //0/97 (SIGNATURT ON FILE)

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. , _ 3~0' FOLLOW-UP-ACTIONS-ACTIONS DETAILS V(C 3.1 ____ - Notify personnel of plant e STA conditions.

  • Plant Operators e Health Physics '

e SS0D (evaluate plant conditions for potentia 1' entry into the Emergency Plan) e Rerueling Area Supervisor 3.2 1[ refueling activities are NJI in progress,

_lli[8 GO T0 step 3.7 in this procedure.

J 3.3 Il refueling canal level or SF-pool level is -

lowering faster than fuel or components can be placeo in a safe position, ItjlN immediately evacuate the area.

3.4 Ensure fuel attached to e if irradiated-fuel is suspended tha Main fuel Handling from Main Fuel Handling Bridge, Bridge is placed in a safe THEN notify bridge operator to-position.- place fuel in Rx-vessel.

e IE irradiated fuel can NOT be placed in the Rx vessel, o'

THEN notify bridge operator to-place the fuel in an available upender and lower.

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. 3.0 FOLLOW-UP ACTIONS (CONT'D)'

-ACTIONS -DETAILS

-3.5 Ensure components attached

  • E irradiated fuel is suspended to_the SF handling br_idge froi SF handling bridge. -

are placed in a safe M notify bridge operator to=

position.- return-the fuel to the SF rack location it came from.

e- E irradiated fuel can NOT be-returned to original location, M notify bridge operator to place the fuel in.an available upender and lower.

3.6- Ensure components attached e H irradiated components are to the crane are placed in suspended from crane, safe position. MQ in the canal, M notify crane operator to place component ~in deep end.

e E component can NOT be placed O --

.in the deep end, M notify crane operator to suspend component inside Rx vessel above fuel.

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, 3.0 F0LLOW UP ACTIONS (CONT'D1

b ACTIONS DETAILS d t mit If fuel transfer tubes are open R8 pressure can affect fuel transfer canal-level.

3.7' Review pisnt parameters to

  • Observe all of the following levels:

determine source of leak'.

, AB sump RB. sump Refueling canal BWST SF pool

__. RCS

- (G- SW surge tank L surge tank "

DH pit sumps 3.8 Determine if any recent

  • Evaluate all of the following activities may have caused causes:

the leak.

Valve stroking System venting or draining-Changes in system alignment

' 3 . 9 . _,_ Perform an inspection of

  • Notify PPO to PERFORM Enclosure 1,-

possible leak sources in Potential Refueling Canal Leak the RB and AB. Sources.

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. LO FOLLOW UP _ ACTIONS fCONT'D) gJ,1pf{$ DE1A1L5

, di C101103 When fuel transfer carriage cables are present, fuel transfer tube valves cannot be fully closed. r ' ace to fuel transfer tube vaher and carriage cables may result from ove. lightening.

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3 .10 _._ 1[ fuel transfer canal e _ SFV Il9 " Fuel Transfer Tube 150" level is lowering, (162 ft AB west end of SF pool) llt[3 notify PPO to close fuel transfer tube va'ves * ._ ,SFV 120 " Fuel Transfer Tube Iso" as far as possible. (162 ft AB west end of SF pool) 3 .1 1 ._. If RCS,

C3 DHR is suspected of being the leak scarce, THEN GO TO AP 520, Loss of t

Os RCS Coolant or Pressure, beginning with Step 3.1 ..

3.12 ,_. If leak is H0J in the RB, I!![h GO TO Step 3.21 in this procedure.

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. 3.0 F0LLOW.UP ACTIONS fCONT!D) l ACTIONS DETAILS l

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STATU.1 The leak has been determined to be in the Rt.  ;

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-3.13 Evacuate nonessential 1 _., Depress *RB EVACUATION" push personnel from the RB if l button. '

required.

2 Notify plant personnel over PA. j i

3 Repeat PA announcement. -

1 3.14 E at any time a DHP is 'l cavitating, 1110 stop the DHP, f and GO TO AP 404 Loss of.

, fS Decay Heat Removal,-

beginning with Step 3.1 NOII The 8WST, RCBTs, SF pools and BASTS are possible makeup sources to the refueling canal.

3.15 _ E refueling canal level '

is lowering, 1 lllG consider initiating makeup to refueling canal, t O

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Applicable carry over steps:

3,14 haDNPiscavitating,IllGstoptheDHPandGOTOAP404...

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., 3,0 FOLLOW-UP ACTIONS fCONT'D)

ACTIONS DETAILS 3.16 ___ Place RB sump pumps in -

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" PULL TO LOCK". WDP-2A l

WDP-2B l

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3.17 __ ji RB equipment hatch is, 1 Notify HP Supervisor. ,

closed, JJiB stop the RB purge. 2 Close AHV-IC r 3 Close AHV-lD I 4 Notify SP0 to ensure Purge Heaters are de-energized (95 ft TB Unit 480V SWGR Room): ,

__ 480V Heating Aux Bus-3A  ;

"AHHE-16A, A RB Purge Heating Coil" 480V Heating Aux Bus-4A

.. "AHHE-168 B RB Purge Heating Coil"

5 Stop AHF-6A l 6- Stop AHF-6B  ;

7 Close AHV-1A i 8 Close AHV-1B 9 Stop AHF-7A 10 Stop AHF-7B l

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Applicable carry over steps:

(~^ 3.14 1[ a DHP is cavitating, JEL8 stop the DHP and GO TO AP-404...  ;

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. ).0 FOLLOW UP ACTIONS (CONT'D)

( ) ACTIONS DETAlli 3.18 __ Ensure containment

  • E the equipment hatch is I integrity. removed, JE[!f notify the SSOD to install equipment hatch.
  • Notify the PPO to ensure at )

least one personnel air lock door or a temporary door is closed.

  • Notify the SS00 to initiate containment reliability compensatory measures.

3.19 __ E refueling canal level

  • OP 404, Decay Heat Removal System is t@I lowering, Section 4.17, filling The fuel lliDj GO T0 appropriate Trrasfer Canal: "A" DH System in procedure to restore SeriIce,"B" DH System RECIRC 0F BWST refueling c:nal level.

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\v} Section 4.18, filling The fuel Transfer Canal: "B" OH System in Service,"A" DH System RECIRC 0F Bk i

  • OP 406, Spent fuel Cooling System, applicable sction(s).

3.20 ._ E refueling canal level continues to lower.

THEN GO T0 step 3.28 in this procedure.

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3.0 FOLL0ti UP ACTIONS (CONT'D) j i

&g ACTIONS DETAILS r

JTATUS  !

The leak has been detertr.ined to be'in the AB.  !

3,21 Evacuate non essential 1 Depress "AB EVACUATION" push personnel from the AB if button. '!

. required. .

2 _, Notify plant personnel over PA.

3 . Repeat PA announcement.

i 3.22 ___, E at any time DHP is ';

cavitating, JJ1G stop DHP,

  • and GO TO AP 404, loss of '

Decay Heat Removal, O beginning with Step 3.1

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f 3.23 ,_, E SF pool liner or e 60 T0 applicable section(s) of transfer tube nas been OP-406, Spent fuel Cooling System.

Jetermined to be the <

source of leak. .

JJifj restore SF pool level. ,

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3.24 E SF cooling system piping is the source of SFP 1A leak, l!!G stop all SF pumps. _ SFP-18 SFP-2 i

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I Applicable carry-over steps: j 3.22 J[ a DHP is cavitating,1118 stop the DHP and GO TO AP-404...

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. 3.0 FOLLOW-UP ACTIONS (CONT'D)

ACTIONS DETAILS 3.25 Notify PPO to ensure SF e Ensure closed SFV 82 "SF Cask supply to Cask Area is Area Iso" (143 ft AB) isolated and vented.

  • Ensure open SFV-90 "SF Cask Area Loop Seal Vent" (143 ft AB)

CAUTION With a SF pool level of 156 ft, if SF cooling is not restored, the SF pool may reach 190*F in as little as 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and reqtire up to 70 gpm makeup to maintain level.

K011 Leakage from SF suction and discharge piping will stop when SF pool level lowers to approximately 4 feet below normal level.

3.26 ,_ 1E SF cooling system -* If adequate volume exists in the piping leak car Jt be BWST, isolated, Ilife GO TO OP-406, Spent Fuel AJD SF pool level is System Cooling, Section 4.10, lowering. Lowering SF Pool level by THEN consider pumping the Diverting Purification Flow to volume above affected BWST.

piping to the BWST.

3.27 _ jf SF cooling system leak

  • GO T0 applicable section(s) of is isolated, OP-406, Spent Fuel Cooling System to AMQ a SF cooling path is restore:

available, lHJJ re-establish SF _ SF level to normal cooling and SF pool level.

SF cooling O

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o Applicable carry over steps:

3.22 11 a DHP is cavitating, IliLN stop the DHP and GO TO AP-404...

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. 3.0 FOLLOW UP ACTIONS (CONT'D)

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) ACTIONS DETAILS 3.28 IE leak can NOT be isolated, QB level continues to lower, IdfB contact the TSC for further guidance and EXIT this procedure.

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. 5.0 ENCLOSURE 1 P0TENTIAL REFUELING CANAL LEAK $00RCES ACTIONS DETAILS  !

1.1 Perform an inspection of e Visually inspect Ni pull boxes l potential refueling canal (119 ft RB just inside the  !

leak sources in the RB. personnel hatch).

  • Visually inspect Fuel Transfer  !

Canal telltale drain line (124 ft RB just outside A CFT room),

e Visually inspect Fuel Transfer  !

Canal telltale drain line (95 ft-  :

RB next to RB sump).

e ,_. Visually inspect seal plate for rising air bubbles.

e Ensure fuel Transfer Canal deep end drains are closed:

SFV-83 " Fuel Transfer Canal Drain" (95 ft RB by RB sump)

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SFV-84 " Fuel Transfer Canal Drain" (95 ft RB by RB sump) e _ Visually inspect RCS and DHR system piping for leakage, o _ Review local cold leg nozzle dam control panel if installed.

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. 5.0 ENGLQiURL1 POTENTIAL REf_UlLING CANAL LEAK SOURCES (CONT'DJ

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) ACT10!45 DETAILS 1.2 __ Perform an inspection of e Visually inspect SF cooling potential refueling canal system for leakage.

leak sources in the AB.

e Visually inspect DilR system piping for leakage, o Visually inspect SF pool liner telltale drains (95 ft AB MVP cubicles).

  • Visually inspect Transfer Tube telltale drains (119 ft AB by SFP air handlers).
  • If any telltale drains are flowing, Il1[U note each valve number, and close all telltale drain .

valves.

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