ML20205C668

Rev 1 to Emergency Operating Procedure EOP 35 FR-H.5, Response to Steam Generator Low Level

ML20205C668
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-H.5, NUDOCS 8810260551
Download: ML20205C668 (5)

Text

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E. J. Mrec: *

• 2-1-85 Form Appr vcd by Station superintendent Effei:tive Dnto STATION PROCEDllRE COVER SHEET

[ A. IDENTIFICATION LI Number E0P 35 FR-H.S Rev. 1 Title RESPONSE TO STEAM GENERATOR LOW LEVEL Prepared By J. D. Catlin B. REVIEW I have reviewed the above procedure and have found it to be satisfactory.

TITLE SIGNATURE DATE -

DEPARTMENT HEAD J) is C. UNREVIEWED SAFETY QUESTION EVALUATION DOCUMENTATION REQUIRED:

(Significant change in procedure method or scope YES [ ] NO bd as described in FSAR)

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

) ENVIRONMENTAL IMPACT (Adverse environmental impact) YES ( ) NO T)4 (If yes, document in PORC/SORC meeting minutes)

D. INTEGRATED SAFETY REVIEW REQUIRED (Affects response of Safety Systems, performance YES [ ] NO > <J 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 b ORC REVIEW YES % NO [ ]

F. h 0RC APPROVAL M _0RC Meeting Number 3-seam G. APPROVAL AND IMPLEMENTATION The attached procedure is hereby approved, and effective on the date below:

t maw W Station /pvice/ Unit Superiril7r ndent 12- 04S~

Effective Date SF 301 go2ggg{$$o8 3 a 1 of 1 P

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E0P 35 FN-H.5 Page 1 I

Rev. 1 I

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RESPONSE TO STEAM GENERATOR LOW LEVEL

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RESPONSE TO STEAM GENERATOR LOW LEVEL E0P 35 FR-H.S Page 2 Rev. 1 J ,

A. PURPOSE This procedure provides actions to respond to a steam generator low level condition.

B. ENTRY CONDITIONS ,

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 I

to determine if the required action is still applicable to current plant conditions. i This procedure is entered from E0P 35 F-0.3, HEAT SINK Critical Safety L Function Status Tree on a YELLOW condition, r 4

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RESPONSE TO STEAM GENERATOR LOW LEVEL E0P 35 FR-H.5 Page 3 Rev. I' U -

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OSTAINED NOTE Throughout this procedure, "affected" refers to any SG in which narrow range level is less than 4% (34% for adverse containment).

CAtTTION Steam releases from affected SG(s) should be minimized.

1 Identify Affected SG(s)

a. Narrow range level - LESS a. Return.to procedure and THAN 4% (34% step in effect.

FOR ADVERSE CONTAINMENT) 2 Verify Blowdown Isolatica Manually close valves.

Valves From Affected sG(s) -

CLOSED i

CAUTION AW flow should not be established to any 4

faulted SG that has been isolated unless needed for RCS cooldown.

J 3 Check If Affected SG(s) Not Faulted

a. Check pressure in affected a. IFF affected SG(s)

SG(s) - previously identified

1) NOT DECREASING IN AN as faulted, THEN return UNCONTROLLED MANNER to procedure and step in A_ND effect. IF NOT, THEN go

2) NOT COMPLETELY to E0P 35 E-2, FAULTED DEPRESSURIZED STEAM GENERATOR ISOLATION, Step 1.

O OPS 064-1 3-44

'*9b RESPONSE TO STEAM GENERATOR LOW LEVEL E0P 35 FR-H.5 Page 4 Rev. 1

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STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OSTAINED 4 Check AFW Flow To Affected E affected SG(s) wide range SG(s) - GREATER THAN 75 level greater than 4% (34%

CPM for adverse containment), THEN establish AFW flow as necessary to refill affected SG(s).

E affected SG(s) wide range level less than 4% (34% for adverse containment), THEN establish AFW flow to affected SG(s) at a rate not to exceed 100 gpm per SG.

5 Continue Filling Affected

- SG(s) Until Narrow Range Level Greater Than 4% .

(34% For Adverse .

Containment) 6 Return To Procedure and Step In Effect

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