ML20237H696

Rev 1 to Function Restoration Guidelines FR-Z.3, Response to High Containment Radiation

ML20237H696
Person / Time
Site:	Sequoyah
Issue date:	06/12/1987
From:	Strickland G, Terpstra G, Jacqwan Walker TENNESSEE VALLEY AUTHORITY
To:
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References
FR-Z.3, NUDOCS 8708170316
Download: ML20237H696 (5)

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SEQUOYAH NUCLEAR PLANT l

FUNCTION RESTORATION GUIDELINES FR-Z.3 RESPONSE TO HIGH CONTAINMENT RADIATION Revision 1 1~

PREPAREi' BY:

G. Strickland RESPONSlfc.E SECTION: Operations REVISED BY:

Gary L. Terpstr.

SUBMITTED BY:; O,

. // ey t e ponsible Section, Supervisor l.

JUN 121987

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PORC REVIEW AT :

o APPROVED BY:

Plant Manager DATE APPROVED:

JUN '121987 1.

Reason for revision (include all Instruction Change Form Nos.):

Revised to chance Step 2: 50I-65 to S01-65.18 (50I-65.28): Step 3: Changed SOI-30.6A to SOI-30.5E, & Step 6: Changed HP to Radiological Control.

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.SEQUOYAH NUCLEAR PLANT PLANT INSTRUCTION REVISION LOG.

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FUNCTION RESTORATION GUIDc. LINES FR-Z 3 REVISION Date Pages REASON FOR CEVISION (INCLUDE COMMITMENTS AND LEVEL Approved Affected ALL ICF FORM NUMBERS)

New instruction written per commitment to NUREG 0

08/21/85 All 0737.

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Revised to change Step 2: 501-65.to S01-65.18:

(50I-65.2B); Stop 3; Changed 501-30.6A to-l t

SOI-30.5E, & Step 6: Chaitged HP to Radiological JUN 1 2 1987 2,3 Control.

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t SQNP FR-Z.3 Unit 1 or 2 Page 1 of 3 Rev O f

Ik RESPONSE TO HIGH CONTAINMENT RADIATION A.

PURPOSE This guideline provides actions to respond to high containment radiation B.

SYMPTOMS 1.

Upper entmt radiation greater than 100 R/hr, M-30, RM-90-271 or 272 2.

Lower entmt radiation greater than 1000 R/hr, M-30, RM-90-273 or 274 C.

TRANSITION FROM OTHER INSTRUCTIONS Status Tree

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SQNP

3E FR-Z.3, Unit'l or 2 Page 2 of.3 7

Rev. 1 9

RESPONSE TO HIGH-CONTAINMENT RADIATION s.

STEP ACTION / EXPECTED ' RESPONSE RESPONSE NOT OBThINED 1

Verify Cntmt Vent Isolation I.

a.

Refer to SOI-30.2B 2

' Verify EGTS in Service

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Refer to SOI-65.1B- (SOI-65.2B) g 3

Verify Aux Bldg isolation a.

Refer to SOI-30.5E 4

Verify Main Control Room Isolation a.

Refer to' SOI-30.1 5

Check Aux Bldg Radiation Try to identify and isolate -

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- NORMAL radiation leakage paths

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BUT do not stop any ECCS-

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Area monitor recorders injection when isolating RR-90-1 and 12 leakage b.

Aux bldg vent monitor

- I RM-90-101 I

c.

Unit I and 2 shield bldg vent monitor RM-90-100 L

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SQNP

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RESPONSE TO HIGHf0NTAINMENT RADIATION

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ACTION / EXPECTED RESPONSE RESPONSE NOT OBThlNED 6.

Consult With TSC a.

Notify TSC to e. valuate following:

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1) 'If an[ open entmt isolation valve should be closed

' 2)[If Rad Con surveys and boundaries should be established

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3) Possible restrictions and dose assessment prior to normal entmt purge and exhaust l

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