ML20205B441

Rev 2 to Emergency Operating Procedure EOP 35 ES-1.3, Transfer to Cold Leg Recirculation

ML20205B441
Person / Time
Site:	Millstone, Haddam Neck, 05000000
Issue date:	06/15/1988
From:	CONNECTICUT YANKEE ATOMIC POWER CO.
To:
Shared Package
ML20204H467	List: A07413, Forwards Specific Emergency Operating Procedures for Use During Incident Response Ctr Activation ML20204H704 ML20204H734 ML20204H868 ML20204H928 ML20204H963 ML20204J027 ML20204J039 ML20204J092 ML20204J109 ML20204J115 ML20204J120 ML20204J128 ML20204J133 ML20204J139 ML20204J147 ML20204J497 ML20204J543 ML20204J565 ML20204J627 ML20204J633 ML20204J638 ML20204J642 ML20204J659 ML20204J669 ML20204J685 ML20204J707 ML20204J733 ML20204J739 ML20204J746 ML20204J767 ML20204J781 ML20204J786 ML20204J814 ML20204J824 ML20204J849 ML20204J853 ML20204J865 ML20204J878 ML20204J902 ML20204J914 ML20204J920 ML20204J939 ML20204J947 ML20204J954 ML20204J958 ML20204J965 ML20204J975 ML20204J982 ML20204J994 ... further results
References
EOP-35-ES-1.3, NUDOCS 8810260244
Download: ML20205B441 (7)

Text

,

Steph*n E.

ace 3-31-87 87-12 Fora Approved by Stat...i Sup3rintend:nt Effcetivo 06.4 50RC Mtg. No.

1, STATION PROCEDURE COVER SHEET p()

A.

10,ENTIFICATION 0

Number: E0P 35 ES-1.3 Rev.

2

Title:

TRANSFER TO COLO LEG RECIRCULtT:0N, Prepared By: H.

K.

COVIN B.

REVIEW

! have reviewed the above procedure and have found it to be satisfactory.

TITLE

$1GNATt'R E DATE DEPARTMENT HEAD NN, G!/

/

J C.

SPECIFIC UNREVIEWED SAFETY QUF.STION EVALUATION REQUIRED:

Modifies intent of procedure and changes operation of systems as described in design documents.

YES ( )

NO [7 (If yes, parform written USQ determination and Safety Evaluation, and contact Manager, Safety Analysis Branch to determine need fur Integrated Safety Evaluation. )

ENVIRONMENTAL REVIEW REQUIRED

( Adverse envit onmerital impact)

YES ( )

NO ((.

0.

SPECIFIC SAFETY EVALUATION REQUIRED Affects response of safety systems 7 performance of systems which may have been credited in the safety analysis or non-credited systems which may indirectly affect safety system response, YES ( )

NO [ [

(If yes, perform written Safety Evaluation and contact Manager, Safety Analysis Branch to dettirmine need for Integrated Safety Evaluation.)

E.

INTEGRATED SAFETY EVALUATION REQUIRED YES ( )

NO (Q

/SORC REVIEW F.

PROCEDURE REQUIRES items with a YES response f

(In addition to review, must be documented in the P0pSDRC meeting minutes. )

YES QJ NO ( )

G.

PORC SORC APPROVAL SORC Meeting Number 3-37-/l/N H.

APPROVAL AND IMPLEMENTATION The attache to - re is eby approved, and Effective on tha date below:

5

($~ M J Y

.n Station / Service / Unit. Superintendent Effective Date~

SF 301 Rev. 9 Page 1 of 1 8910260244 00100'/

PDR ADOCK 06000213 P

PDR l

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E0P 35 ES-1.3 Page 1 g

Rev. 2

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1 O TRANSFER TO COLD LEG RECIRCULA'!0N t

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Eff. Rev.

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IRANSFER 10 COLD LEG RECIRCULATION EOP 35 ES-1.3 Page 2 Rev. 2 I

A.

PURPOSE This procedure provides the necessary instructions for transferring the safety injection system and containment recirculation spray system l

4 to the recirculation mode.

I i

B.

ENTRY CONDITIONS

}

This procedure was written for Modes 1, 2, and 3 assuming RHR is not j

in service f or cooldowc. Using this procedare when not in these modes requires a step by steo evaluation to determine if the required action l

}

is still applicable to current plant conditions.

j This proced re is entered from 1

j 1.

F.0P 3b E-1, LOSS OF REACTOR OR SECONDARY COOLANT, Step 14, on f

low-low RWST level.

I a

j 2.

E0P 35 ECA-2.1, UNCONTEOLLED DEPRESSURIZATION OF ALL STEAM GENERATORS Step 9, on low-low RWST level' 3.

Other guidelines whenever RWST level reaches the switchover

[

setpoint.

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e IKANSFER TO COLD LEG RECIRCULATION E0P 35 ES-1.3 Page 3 a

Rev. 2

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STEP ACTIONiEXPFCTED RESPONSE RESPONSE NOT OSTAINED CAUTION 1.

SI recirculation flow to RCS must be maintained at all times, 2.

If of fsite power is lost af ter SI reset, manual action may be required to restart safeguards equipment.

NOTE 1.

Steps 1 and 2 should be performed without delay.

Functional Response procedures should not be implemented prior to completion of these steps.

2.

Foldout page should be open.

3.

Once in Hecirculation Mode Sequencer will start loads for Cold Leg Recirculation.

[h 1

RESET SI x -)

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4 o cess +, 3..

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o AXAbbtth AU LULU LtU htL AKUULAl'IUN LUF 35 E5-1.3 Fage 4 Rev. 2 g

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$1sP ACTIONsEXPECTED RESPONSE RESPONSE NOT OBTAINED N6TE

1. Either train of containment recirculation spray can supply water to the core.

2. Valves with "(power lockout)" appearing after them have a power lockout switch on either the front or the rear of MB2 which must be ON to permit valve operation.

3. One SI pump and one charging pump can supply the required minimum recirculation flow.

I CAUTION

1. SI pumps should be stopped if RCS pressure is greater than their shutoff head pressere.

2. The Containment Rectre Pumps should never be run at >$000 gpn and can run for only one hour at' flows >4600 gpm.

Excessive flows through s

(

the heat exchanger can cause tube failure.

2 Align Rl[R And Containment IF at least one flow path Recirculation Spray Systems from the sump to the RCS for Cold Leg Recirculation can NOT be established using the recirc changeover or maintained, THEN go array or manual operation to E0P 35 ECA-1.1, LOSS OF EMERGENCY COOLANT RECIRCULATION, Step 1.

a.

Ve ri f y RHR p umps a.

STOP RHR pumps stopped b.

CLOSE RHR Pump Cold Leg Injection valves (3SIL*MV8809A/B) c.

CLCSE RHR pump suction valves

( 3SI L*MV8812A/ B) d.

CLOSE RHR pump cross-over valves (power lockout)

(3RHS*MY8716A/B)

Ue kt.e -1 3 64

IRAN 5tER 10 COLD LEG RECIRCULATION EOP 35 ES-1.3 Page 5 Rev. 2 m

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT ORTAINED e.

Verify Containment e.

START Containment Recire Spray Pumps Recire Pumps A and B.

A and B - RUNNING WHEN Containment Rectre Heat Exchanger Outlet temperature shows a temperature increase, THEN Go to Step 2f.

f.

CLOSE containment recirc spray header valves (3RSS*MOV20A/B) g.

OPEN containment recirc spray to RHR (3RSS*MV8837A/B) h.

CLOSE SI pump (power lockout) recirc to RWST (3SIH*MV8813/8814/

3Slii*MV8920) i.

CLOSE Charging Pump g

\\~ /

Miniflos Isolation to RWST valves (3CHS*M18511AB)

(3CHS*MVS$12A/b) j.

OPEN CHG to SI suct (RHR/CHG Isolation and RHR/SI Isolation) valvec (3SIL*MV8804A/B) k.

OPEN or CHECK k.

CLOSE Service Water OPEN service water supply RPCCW Heat to reeirc spray Exchanger Inlet Manifold coolers A and B Valves, (3SWPAMOV50A/B)

(3SWP4HOV54A/B)

THEN OPEN Service Water valves to CTMT recire cool-rs A and B (3SVr*M0V54A/B) 1.

OPEN CHG to S1 Pump X-TIE (3S!H4MV3807A/B)

OPMM-1 3 44

l LXAbbtLK AU LVLU LLU htGIRCULAIION EOF 35 ES-}.3 Page o Rev. 2 (h) f~

v STEP ACTICD4, EXPECTED RESPONSE RESPONSE NOT OOTAINED m.

Verify at least one Try to START a Charging or SI Charging and SI Pump -

p ump.

IF only one Charging RUNNING or SI pump is running, THEN OPEN one RHR Cold Leg Injection Valve (3SIL*MV8809A/B)

NOTE The following valves must be aligned l

from their normal switch, n.

CLOSE RWST to CHG pumps (3CHS*LCV!!2D/E) o.

CLOSE RWST to SI pumps (power lockout)

(3SIH*MV8806) 3 Restore Service Wate r to RPCCV a.

Verify CTMT pressure a.

Return to step 3b when

< 22.7 psia CTMT pressure < 22.7 psia b.

RESET CDA c.

START a second c.

IF two service water Service Water Pump pumps are not operating i

in each train in AT LEAST ONE train THEN Trip RCPs and go to Step 4 d.

OPEN Service Water Supply to RPCCW Heat Exchanger Valve f or any service water train with two pumps operating

( 3SWP*MOV50 A/ B) 4 Return To Procedure And Step In Effect

-FINAL-CIPSV41 3 84

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