U-602257, Proposed TS 3/4.4.3.1, RCS Leakage-Leakage Detection Sys

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Proposed TS 3/4.4.3.1, RCS Leakage-Leakage Detection Sys
ML20064C263
Person / Time
Site: Clinton Constellation icon.png
Issue date: 02/25/1994
From:
ILLINOIS POWER CO.
To:
Shared Package
ML20064C254 List:
References
U-602257, NUDOCS 9403090229
Download: ML20064C263 (8)
v • d • e


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l Attachment 3 to U-602257 LS-94-005 Page1 of2 l

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i l Proposed Clianges to (lie

! Current Technical Specifications l

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9403090229 940225 PDR ADOCK 05000461 l

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Attachment 3 to U-602257 l ltEACTOR C0blAffT' SYSTEM LS-94-005 l Page 2 of 2 l 3]4.4.3 " REACTOR C00LAtiT SYSTEM LEAKAG_E i

LEAKAGE- DETECTI0ff SYSTEMS UMIT!!1G C0f1DITI0t1 FOR OPERATI0ti 3.4.3.1 'The following reactor coolant system leakage detection systems shall be OPERABLE:

a. The drywell atmosphere particulate radioactivity monitoring system,
b. The drywell sump flow monitoring syst nd ll
c. Either the drywell atmosphere gaseous radioactivity monitoring system or the drywell air coolers condensate flow rate monitoring system.

l APPLICABILITY: OPERATI0fiAL C0fiDITI0ftS 1, 2, and 3. ,

ACTI0t{:

l With only two of the above required leakage detection systems OPERABLE, l

a. operation may continue for up to 30 days when the drywell atmosphere particulate radioactivity monitoring system is inoperable provided grab samples of the drywell atmosphere are. obtained and analyzed at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
b. operations may continue:

I 1. with the drywell equipment drain sump flow monitoring subsystem inoperable provided the drywell equipment drain sump flow rate is monitored and determined by alternate means at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, j l

2. for up to 30 days with the drywell floor drain sump flow monitoring subsystem inoperable provided the drywell floor drain sump flow rate is monitored and determined by alternate means at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />,
c. operation may continue for up to 30 days when the drywell atmosphere gaseous radioactivity monitoring system and the drywell air coolers

! condensate. flow rate monitoring system are inoperable provided grab samples ,

of the drywell atmosphere are obtained and analyzed at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Otherwise, be in at least 110T SHUTDOWii within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD  :

SHUTDOW!1 within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

CllitT0tl - UNIT 1 3/4 4-12 nt flo. 65 1

f 'In Uew of h fecgo:rement Ret % asoctoteR N/-notched weir kox to be OPER.ABLE,%c de we.li Clcor dWn somp @ lou mon: twin 3 sobsgstem NY

be. conwereA degneus a<ovtaea w d< pen raoor hn surno mow is roonbreA cod detexmind& bg a li-e x n e d mecms cd least ence per G bcuc.s. '

% I6 QR{ rod 6 M 6;on DR W 6 9 i6gercch aMlicable 15, I'lH.unKl

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Attachment 4

. . to U-602257 l LS-94-005 l Page1 of6 ,

1 Proposed Clianges to I nproved Technical Specification Conversion Submittal (IP 1. citer U-602196) l l

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1 Attachment 4 1 to U-602257 1 Page 2 of 6 l Enclosure 2 to u-602196

, Section 3.4 Page 102 of 211 RCS Leakage Detection Instrumentation 3.4.7 l 3.4 REACTOR. COOLANT SYSTEM (RCS) 3.4.7 RCS Leakage Detection Instrumentation LCO 3.4.7 The following RCS leakage detection instrumentation shall be OPERABLE: I

a. Drywell floor drain sump monitoring system; {and]-f-._.

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b. One channel of either drywell atmospheric part*culategor g atmosphericgaseousmonitoringsystem;gand 3: I
c. Drywell air cooler condensate flow rate monitoring q system . .

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Tf\t6cet N i

- f4 a m/w~7 sysk n APPLICABILITY: H0 DES 1, 2, and 3.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME

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l A. Drywell floor drain -----.------NOTE-------------

sump monitoring system LC0 3.0.4 is not applicable.

inoperable. -----------------------------

A.1 Restore drywell floor 30 days drain sump monitoring system to OPERABLE status.

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-BWR/5-STS - 3.4-14 Rev. O, 09/2o/ u l

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1 Attachment 4 to U-602257

- Page 3 of 6 Insert 14 l

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NOTE- .-

l In lieu of the requirement for the associated V. notched weir box to be OPERABLE, the drywell floor drain sump monitoring system may be considered OPERABLE provided the l drywell floor drain sump flow is monitored and determined by alternate means at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. This provision is applicable until the first time the reactor is brought to MODE 4 after March 15,1994.

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4 Attachment 4 to U-602257 Page 4 of 6 4

Enclosure 2 to U-602196

  • Section 3 4 Page 160 of 211 RCS Leakage Detection fnstrumentation B 3.4.7 l -

1 BASES i

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] APPLICABLE Therefore, these actions provide adequate response before a

SAFETY ANALYSES significant break in the RCPB can occur.

l (continued) 2 RCS leakage detection instrumentation satisfies Criterion 1 of the NRC Policy Statement.

$Uh 'It/ lc7~

d LC0 The drywell floo'r drain sump monitoring system is require

to quantify the unidentified LEAKAGE from the RCS. T g' for the system to be considered OPERABLE, Ak the flow monitoring c _- _ - ; '-" ' - "" ' ; porti on of he j , system must be OPERABLE. The other monitoring systems provide early alarms to the operators so closer examination i of other detection systems will be made to determine the extent of any corrective action that may be required. With 1 the leakage detection systems inoperable, monitoring for e

MMNJ i w -

KAGE in the RCPB is degraded.

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j, APPLICABILITY In MODES 1, 2, and 3, leakage detection systems are required

) [ to be OPERABLE to support LCO 3.4.5. This Applicability is

consistent with that for LCO 3.4.5.

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ACTIONS L.l i

With the drywell floor drain sump monitoring system

! inoperable, no other form of sampling can provide the

] equivalent information to quantify leakage. However, the drywell atmospheric activity monitorMand the drywell air

cooler condensate flow rate monitor will provide i

indications of changes in leakage.

I With the drywell floor drain sump monitoring system

. b inoperable, but with RCS. unidentified and total LEAKAGE

] being determined every hours (SR 3.4.5.1), operation may

12 continue for 30 days. e 30 day Completion Time of 4

Required Action A.1 is acceptable, based on operating 4

experience, considering the multiple fonns of leakage detection that are still available. Required Action A.1 is

! modified by a Note that states that the provisions of 1

LCO 3.0.4 are not applicable. As a result, a MODE change is

, allowed when the drywell floor drain sump monitoring system

( (continued)

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-EWRf6-STS-8 3.4-33 Rev. 0,-00/23/02-

Attachment 4 l

to U-602257

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Insert B33 l

The LCO is modified by a Note that identifies that the V-notch sump inlet flow monitoring system is not required to be OPERABLE provided the drywell floor drain sump flow is monitored and determined at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. This Note only applies until the first shutdown to MODE 4 afler March 15,1994. Prior to plant restart from that plant shutdown, the V-notch sump inlet flow monitoring system must be restored to l OPERABLE status.

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Attachment 4 to U-602257 Page 6 of 6 Enclosure 2 to U-602196 Section 3.4 Page 204 of 211 i

DISCUSSION OF CHANGES TO NUREG-1434 TS 3.4.7 - RCS LEAKAGE DETECTION INSTRUMENTATION BRACKETED ADMINISTRATIVE CHOICE l B.1 Brackets removed and optional wording preferences revised to I reflect appropriate plant specific requirements. l 1

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PLANT SPECIFIC DIFFERENCE P.1 The safety analysis report for this station is identified as  ;

the Updated Safety Analysis Report and is correctly referred to as the USAR.

P.2 The Bases discussion is revised to reflect the choice of applicable bracketed information in the Action.

P.3 Additional information is included in the references for case i i

l of identification. This additional information may include the title, revision number and/or date. .

l P.4 The LCO and Bases are revised to be consistent with the plant specific design.

P.5 This comment number is not used for this station.  !

l P.6 The Bases description of ACTION A.1 includes the frequency of  ;

1 SR 3.4.5.1. The frequency is being revised to make it consistent with the change proposed in LCO 3.4.5 for this frequency.

P.7 The Completion Time is revised to make it consistent with the current Technical Specifications.

P.8 The terminology is revised to make it consistent with the proposed Technical Specifications.

?.9  % chrga re&teCes eqcs pccutovst0-coo 125 p in le* f ,

CHANGE / IMPROVEMENT TO NUREG STS Q- )s C.1 " Containment" changed to "drywell" for accuracy.

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l CLINTON 10 10/1/93 1

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