ML20237H654

Rev 0 to Function Restoration Guidelines FR-H.5, Response to Steam Generator Low Level

ML20237H654
Person / Time
Site:	Sequoyah
Issue date:	08/21/1985
From:	Patterson B, Strickland G TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML20237H133	List: ML20237H131 ML20237H155 ML20237H173 ML20237H196 ML20237H257 ML20237H274 ML20237H281 ML20237H298 ML20237H348 ML20237H361 ML20237H365 ML20237H400 ML20237H412 ML20237H421 ML20237H430 ML20237H438 ML20237H452 ML20237H464 ML20237H480 ML20237H492 ML20237H501 ML20237H508 ML20237H517 ML20237H532 ML20237H547 ML20237H559 ML20237H593 ML20237H602 ML20237H616 ML20237H629 ML20237H641 ML20237H649 ML20237H654 ML20237H659 ML20237H671 ML20237H682 ML20237H689 ML20237H696 ML20237H699 ML20237H703 ML20237H714 ML20237H719 ML20237H726 ML20237H735 ML20237H739 ML20237H770 ML20237H796 ML20237H852 ML20237H899 ML20237H967 ... further results
References
FR-H.5, NUDOCS 8708170302
Download: ML20237H654 (4)

Text

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TENNESSEE VALLEY AUTHORITY

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. SEQUOYAH NUCLEAR PLANT ,

FUNCTION RESTORATION GUIDELINES

• FR-H.5 RESPONSE TO STEAM GENERATOR LOW LEVEL -

s Revision 0 PREPARED BY: G. Strickla_n_d- l RESPONSIBLE SECTION: Operations 8 /

REVISED BY:  ! -

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,e. Responsibl6 Sect on Supervisor PORC REVIEW DATE: kDS N APPROVED BY: h) alfT(s%

Plant' Manager DATE APPROVED: ' ale 211985 Reason for revision (include all Instruction Change Form Nos.): 1 New Instruction written per commitment to NUREG 0737. '

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The'last page of this instruction is number: 2 i l

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SEQUOYAH NUCLEAR PLANT

. PLANT INSTRUCTION REVISION LOG _

FUNCTION RESTORATION GUIDELINES FR-H.5 REVISION Date Pages~~ ~ REASON FOR REVISION (INCLUDE COMMIT- =--

LEVEL Approved Affected MENTS AND ALL ICF FORM NUMBERS)

^New~ instruction written per commitment o AU 32119% All -

to :NuREo 0737 7 n r . -

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, SQNP FR-H.5 Unit 1 or 2 .

Page 1 of 2 Rev. O RESPONSE TO STEAM GENERATOR LOW LEVEL j i

A. PURPOSE This guideline provid< s actions to respond to a steam generator low level B. SYMPTOMS i S/G narrow reng'e level less than 25%

C. TRANSITION FROM OTHER INSTRUCTIONS Status Tree a

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. .' . SQNP FR-H.S Unit 1 or 2 Page 2 of 2 Rev. 0

. l RESPONSE TO STEAM GENERATOR LOW LEVEL STEP __ ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED 1 Identify Affected S/G

a. Narrow range S/G a. IF all S/G levels > 25%,

level < 25% '

THEN return to instruction in effect 2 Minimize Steam Release From Affected S/G

a. Reduce affected S/G steam release to within AFW .,.

makeup capability 3 Verify Affected S/G Blowdown

- ISOLATED

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CAUTION: Any faulted S/G or secondary break should remain isolated unless needed for RCS cooldown 4 Refill Affected S/G Based On Wide Range Level

a. IF affected S/G wide range a. IF wide range level level > 25% [35% FOR T25% [35% FOR ADVERSE CNTMT], ADVERSE CNTMT],

THEN eatablish AFW flow THEN do not refill as necesaary to refill affected S/G unless affected D/G S/G is required for RCS cooldown F affected S/G is I_F required .for RCS -

cooldown ,

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THEN establish AFW flow to affected S/G at a rate not to exceed 100 gpm per S/G 5 Return To Instruction In Effect ~

-END-

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