ML20205C502

Rev 1 to Emergency Operating Procedure EOP 35 FR-C.3, Response to Saturated Core Conditions

ML20205C502
Person / Time
Site:	Millstone, Haddam Neck, 05000000
Issue date:	12/13/1985
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-FR-C.3, NUDOCS 8810260513
Download: ML20205C502 (5)

Text

.

_ 1-85 E. J. MroczL Form Approved by Station Superintendent Effective Date STATION PROCEDURE COVER SHEET I

A.

IDENTIFICATION v\\

Number E0P 35 FR-C.3 Rev.

1 Title RESPONSE TO SATURATED CORE CONDITIONS Prepared By C. T. Ryan B.

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

TITLE

$1GNATURE DATE DEPARTMENT HEAD Y

/.

J' 2

C.

UNREVIEWE0 SAFETY QUESTION EVALUATION DOCUMENTATION REQUIRED:

(Significant change in procedure nethod or scope YES ( )

NO X as described in FSAR)

(If yes, document in PORC/SORC meeting minutes)

ENVIRONMENTAL IMPACT (Adverse environmental impact)

YES ( )

N0 txi I

(If yes, document in PORC/SORC meeting minutes)

D.

INTEGRATED SAFETY REVIEW REQUIRED (Affects response of Safety Systems, performance YES ( )

N0 p4 of safety-related control systems or performance of control systems which may indirectly affect safety system response.)

(If yes, document in PORC/SORC meeting minutes.)

E.

PROCEDURE REQUIRES 83EC)SORC REVIEW YES C)q NO ( )

F. h 30RC APPROVAL h 0RC Heeting Number 3--85 cM4 G.

APPROVAL AND IMPLEMENTATION The attached procedure is hereby approved, and effective on the date below:

M.

tLM,W l2 - 1 J-f$

Station /Serpe/UnitSuperintWdent Effective Date SF 301 Rev. 7 0810260513 001007 Page 1 of 1 PDR ADOCK 05000213 P

PDR

E0P 35 FR-C.3 Page 1 Rev. 1 0

~

RESPONSE TO SATURATED CORE CONDITIONS Page No.

Eff. Rev.

i 1-4 1

h O

O

RESPONSE TO SATURATED CORE CONDITIONS E0P 35 FR-C.3 Pags 2 Rev. 1 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OSTAINED I

A.

PURPOSE This procedure provides actions to restore subcooled core cooling.

B.

ENTRY CONDITIONS 2

This procedure was written for Modes 1, 2, 3, and 4.

Using this procedure when not in these modes requires a step by step evaluation to determine if the required action is still applicable to current plant conditions.

This procedure is entered from E0P 35 F-0.2, CORE COOLING Critical Safety Function Status Tree, on the YELLOW condition.

e I

3 O

r l

I s

k I

f 9

L I

I

[

i O

OPS 0041 3 64

--_7

'i

-j

'-RESPONSE TO SATURATED CORE CONDITIONS E0P 35 FR-C.k Pega 3 Rev. 1 I

i f~}'

(

~

Q-i NOTE If f.0P 35 ECA-3.2, SGTR WITH LOSS OF REACTOR CC LANT - SATURATED RECOVERY DESIRED, is in effect, this procedure should NOT he

{

pe rfo rised.

l l

CAUTION i

If RWST level decreases to less than 520,000 gal, the ECCS System should be aligned for cold les recirculation usius E0P 35 ES-1.3, TRANSFER TO COLD LEG RECIRCULATION.

e t

1.

Check RHR Systeve - HAS NOT Go to E0P 3505, MSS i

BEEN PLACED IN SERVICE FOR SNUIDOWN COOLING (RHR)

COOLDOWN 2.

Verify ECCS flow a.

Charging pump SI flow a.

START pumps and align l

indicator - CHECK FOR valves as cecessary i

FLOW l

b.

SI pump flow indicators -

b.

START pumps and align CHECK FOR FL&J valves as necessary e

I c.

RCS pressure - LESS THAN c.

Go to Step 3.

300 PSIA (450 PSIA i

for ADVERSE l

CONTAINMENT) j i

d.

RNR pump flow indicators -

d.

START pumps and align CHICK FOR FLOW valves as necessary

[

f l

i O

[

umn um r

....,3,,

_.,m._-_..---

_. _ _ _. _ _,. _. _ _ _... ~ _.. -.

vs.

~

e L_

RESPONSE TO SATURATED CORE CONDITIONS E0P 35 FR-C.3 Pege 4 Rev. 1 0

eTEP ACTION /EEPSCTED RESPONSE RESPONSE NOT 08TAINEO 3

Check RCS Vent Paths a.

PZR PORVs - CLOSED a.

Manually CLOSE PZR PORVs.

IF any valve can NOT be closed, THEN manually CLOSE its block valve.

h.

Block valves - AT LEAST b.

OPEN block valve UNLESS 1

ONE OPEN it was closed to isolate an open PZR PORV.

i c.

CVCS noras' letdown c.

CLOSE CVCS normal letdown l

isolation v. aves - CLOSED isolation valves, d.

RCS loop drain valves -

d.

CLOSE RCS leap drain CLOSED valves.

i e.

CVCS excess letdown e.

CLOSE CVCS excess isolation valve - CLOSED letdown isolation valve f.

RCS hot leg sample f.

CLOSE RCS hot les sample isolation valves - CLOSED isolation valves.

g.

RCS cold leg sample g.

CLOSE RCS cold les sample isolation valves - CLOSED isolation Salves.

p h.

PZR liquid space sample h.

CLOSE PZR liquid space l

isolation valves - CLOSED sample isolation valves.

i.

Reactor vessel head vest i.

CLOSE reactor vessel isolatfor valves - CLOSED head vent isolation valves.

I' 4.

Return To Procedure And Step In Effect s

-FINAL-I i O 4

l oesou i 3+

.. - - _ -,.