ML24158A524

Proposed Technical Specification Changes (Mark-up)

ML24158A524
Person / Time
Site:	Callaway
Issue date:	06/06/2024
From:	Ameren Missouri, Union Electric Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML24158A521	List: ML24158A522 ML24158A523 ML24158A524 ML24158A525 ULNRC-06880, Proposed Technical Specification Bases Changes (Mark-up)
References
ULNRC-06880
Download: ML24158A524 (1)

Text

Definitions I.1 1.1Definitions (continued)

DOSEEQUIVALENT XE-I33DOSEEQUIVALENT XE-I33shallbethatconcentration of Xe-I33(microcuries pergram)thatalonewouldproducethe sameacutedosetothewholebodyasthecombined activities ofnoblegasnuclides Kr-85m, Kr-87,Kr-88,Xe-133m, Xe-I33,Xe-I35m,Xe-I35,andXe-I38actuallypresent. Ifa specificnoblegasnuclideisnotdetected, itshouldbe assumed tobepresentattheminimum detectable activity.

Thedetermination ofDOSEEQUIVALENT XE-I33shallbe performed usingtheeffectivedoseconversion factorsforair submersion listedinTable111.1ofEPAFederalGuidance ReportNo.12,EPA-402-R-93-08I, External Exposure to Radionuclides inAir,Water,andSoil,I993.

ENGINEERED SAFETY TheESFRESPONSE TIMEshallbethattimeintervalfrom FEATURE (ESF)RESPONSE whenthemonitored parameter exceeds itsESFactuation TIME setpointatthechannelsensoruntiltheESFequipment is capableofperforming itssafetyfunction (i.e.,thevalvestravel totheirrequired positions, pumpdischarge pressures reach theirrequiredvalues,etc.).Timesshallincludediesel generator startingandsequence loadingdelays,where applicable. Theresponse timemaybemeasured bymeansof anyseriesofsequential, overlapping, ortotalstepssothatthe entireresponse timeismeasured. Inlieuofmeasurement, response timemaybeverifiedforselected components orthe provided thatthecomponents andmethodology for evaluated inaccordance withanIverification havebeenpreviously reviewed andapproved by NRCapproved methodology.

INSERVICE TESTING TheINSERVICE TESTING PROGRAM isthelicensee PROGRAM programthatfulfillstherequirements of10CFR50.55a(f).

LEAKAGE LEAKAGE shallbe:

a.Identified LEAKAGE I.LEAKAGE, suchasthatfrompumpsealsorvalve packing(exceptreactorcoolantpump(RCP)sealwater leakoff),thatiscaptured andconducted tocollection systems orasumporcollecting tank; 2.LEAKAGE intothecontainment atmosphere from sourcesthatarebothspecifically locatedandknown eithernottointerfere withtheoperation ofleakage detection systems ornottobepressure boundary LEAKAGE; or (continued)

CALLAWAY PLANT 1.I-3 Amendment2