U-602265, Proposed Tech Spec 3/4.4.3.1, RCS Leakage - Leakage Detection Sys
| ML20064G616 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 03/11/1994 |
| From: | ILLINOIS POWER CO. |
| To: | |
| Shared Package | |
| ML20064G612 | List: |
| References | |
| U-602265, NUDOCS 9403160251 | |
| Download: ML20064G616 (8) | |
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.LS.94-005 Page 1 of 2 Proposed Clianges to tiie Current Teclinical SpeciGcations t
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-9403160251 940311 PDR ADOCK 05000461'
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' REACTOR C00LAffT SYSTW LS-94-005 3L4 4'.3 REACTOR LOOLANT SYSTEM LEAKAGE 2
ILAKAGE DETECTI0tl _ SYSTEMS LIMITING CONDIT1011 FOR OPERATION 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 system, and c.
Either the drywell atmosphere gaseous radioactivity monitoring system or the drywell air coolers condensate flow rate monitoring system.
APPLLCABILITY: OPERATIONAL CONDITIONS 1, 2, and 3.
ACTION:
With only two of the above required leakage detection systems OPERABLE, operation may continue for up to 30 days when the drywell atmosphere a.
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:
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
- hours, 2.
for up to 30 days with the drywell floor drain sump flow monitoring l
subsystem inoperable provided the drywell floor drain sump flow rate is monitored and determined by alternate means at least once per 8
- hours, 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 StjuT00WN 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 t
SilUIDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
W TON - UNIT 1 3/4 4-12 Amendment No. 65 m
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Proposed Changes to improved Technical Specification Conversion Snhmittal (IP l> citer 11-602196)
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' to U402196 2 of 6 Section 3.4 Page 102 of 211 RCS Leakage Detection tronentation 3.4.7 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:
vA Drywell floor drain sump monitoring system; fand]--f._.
a.
b.
One channel of either drywell atmospheric part culategor
- g r tmospheric gaseous monitoring system;gand 'g; a
Drywell air cooler condensate flow rate monitoring c.
system Q.
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APPLICABILITY:
H0 DES 1, 2, and 3.
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ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.
Drywell floor drain
NOTE-------------
sump monitoring system LC0 3.0.4 is not applicable.
A.1 Restore drywell floor 30 days drain sump monitoring system tn OPERABLE status.
(continued) znses a i
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--BWRMM--
3.4-14 Rev.
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Attachinent :i to U-602265 LS-94-005 j
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Page 3 of 6 INSliBT 14 N OTE-.............
Operation may continue aner March 15,1994, until the next entry into MODE 4, provided the drywell floor drain sump flow rate is monitored and determined by alternate means once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
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BASES APPLICABLE Therefore, these actions provide adequate response before a SAFETY ANALYSES significant break in the RCPB can occur.
(continued)
RCS leakage detection instrumentation satisfies Criterion 1 of the NRC Policy Statement.
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> d le 7 LCO The drywell flooi-drain sump monitoring system is required to quantify the unidentified LEAKAGE from the RCS. T g'
f monitoring M:
for the system to be considered OPERABLE, -46r the flow
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- ' t H n a,- portion of he system must be OPERABLE. The other monitoring systems provide early alarms to the operators so closer examination of other detection systems will be made to detennine the i
extent of any corrective action tnat may be required. With the leakage detection systems inoperable, monitoring for LEAXAGE in the RCPB is degraded.
I APPLICABILITY In MODES 1, 2, and 3, leakage detection systems are required t
to be OPERABLE to support LCO 3.4.5.
This Applicability is consistent with that for LCO 3.4.5.
ACTIONS Ad 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 indications of changes in leakage.
With the drywell floor drain sump monitoring system of ru inoperable, but with RCS unidentified and total LEAXAGE
__being determined ever hours (SR 3.4.5.1), operation may 12.
continue for 30 days.
e 30 day Completion Time of Required Action A.1 is acceptable, based on operating experience, considering the multiple fanns of leakage y
I detection that are still available,# Required Action A.1 is hgd modified by a Note that states that'the provisions of 3D LCO 3.0.4 are not applicable. As a result, a MODE change is allowed when the drywell floor drain sump monitoring system j
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(continued)
-BWR/G 3T5 B 3.4-33 Rev. O,-00/20/02-
t3 Att chnd 65 to
-6 LS-4-00 Page 6 of 6 to U-602196 Section 3.4 Page 204 of 211 DISCUSSIOli OF CHAliGES TO IIUREG-1434 TS 3.4.7 - RCS LEAKAGE DETECTIO!I I!!STRUMEllTATIOli 13 RACKETED ADMJJLIfdE/ JIVE CilOICE B.1 Brackets removed and optional wording preferences revised to reflect appropriate plant specific requirements.
PLAllT SPECIFIC DIFEEEEINE 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 of identification. This additional information may include the title, revision number and/or date.
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and Bases are revised to be consistent with the plant P.4 The LCO specific design.
P.5 This comment number is not used for this station.
P.6 The Bases description of ACTIOli A.1 includes the frequency of 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.
4 p.9 W5 Change, re$le C.h43e5prm'u pd ;q
~MNb QiAliGELI1LPFovr r0 tiUREG STS C.1
" Containment" changed to "drywell" for accuracy.
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to U-602265 LS-94-005 Page 5 of 6 INSIIRT B33 This Completion Time is modified by a Note that identifies that the 30 day Completion Time may be extended until the next plant shutdown to MODE 4 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 />. Prior to plant restart from that shutdown, the V-notch sump inlet flow monitoring system must be restored to OPERABLE status.
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