ML20063C998

Proposed Changes to Tech Spec 3.1.3.3 Re Reactivity Control Sys Position Indicator Channels

ML20063C998
Person / Time
Site:	Calvert Cliffs
Issue date:	06/21/1982
From:	BALTIMORE GAS & ELECTRIC CO.
To:
Shared Package
ML20063C992	List: ML20063C989 ML20063C998
References
NUDOCS 8207010175
Download: ML20063C998 (2)

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REACTIVITY CC#1TOL SYSIF." ,

FOSITICU INDICATCR CHANTIFIS LI?GTING CO?IDITION FOR OPERATICM / -

.l 3.1 3.3 All shutdo.sn and rea21atin~, CEA reed switch position indicator channels and CEA pulse counting positien indicator channels shall be CPERABLE and capable of determining the absolute CEA positiens within + 2.25 inches. -

APPLICABILI37: MODES 1 and 2.

ACTIO'!: '

a. D31eted r t

b. With a mxian of one reed switch'po91 tion indicatpr chcr.nel per group cr one pulse counting position indicato:/ channel' per group incpercible and the CM(s) with the inopdrable pcsition indicator ch 7.ncl partially inserted, eldher l'

1. Within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> a) Restore the inoperr.ble pcsiticn indicator chanr.el to OFEF>am status ,; t,r ,

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b) Ee in at least HOT 31'A'Ei, or c) Eeduce 'Uff.EMAL PGeER to 705 of the m iimum allcw-able 51!EPRAL FChER level for the existir2g Reactor Coolant Purp ccmbination; if negative reactivity insertien is required to reduce THEP;iAL FOWER, boration shall be used. Cneration'at~cr below this reduced TiEPRAL PChiR' level may centinue provided that within the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> either:

1) The CM croup (s) ' tith the inoperable positicn indicator is fully, withdrawn while maintaining the withdrawal setaence required by Specifica-tien 3.1.3.6 and yhen this CEA group reaches its fully withdrd n position, the " Full Oat" limit of the ,CEA 3.ith the inoperable positicn indicatcr i to be full,.p ac.tuated withdrawn.and verifies this Subsecuent CEA to fully withdrawin;; this CEA croup (s), the. TEFF11 PCER level.nci-be returned to a level con-sistent with all other applicable specifica-ticn; or

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2) The CEA gmup(3) with the inoperable position indicator is fully inserted, and subsequently naintained fully inserted while maintaining the withdrawal sequence and 'IEEFF.AL POWER level required by Specification 3.1.3.6 and when this CEA group reaches its fully

, , inserted position, the " Full In" limit of the CEA with the inoperable position indicator is actuated and verifies this CEA to be fully inserted. Subsequent operation shall be within the limits of Specification 3.1.3.6.

2. or, if the failure existed before entry into rcce 2 cr occurs prior to an "all CEA"s cut" configuration during the plant startup, the CEA Group (s) with inoperable position indicator channel nust be moved to the

" full out" position and verified to be fully with-drawn via a " full out" indicator. '&.ese actions nust be completed within ten hours of entry into trcde 2 and prior to exceeding 70% of the maxirum allowable

'IEEFFAL PCWER level for the existing Reactor Coolant Fu.p ccmbination. If these linitations are not met, place the plant in at least liOT STANDBY. The provisions of specification 3.0.4 are not applicable,

c. 'dith a mminum of one reed switch position indicator channel per group or one pulse counting position indicator channel per group incperable and the CEA(s) with the incperable position indicator channel at either its fully inserted position or fully withdrawn position, operation may con-tinue provided:

1. The positicn of this CEA is verified i=.ediately and at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter by its " Full In" or " Full Cut" limit (as applicable).

2. The fully incerted or fully withdrawn (as applicable)

CEA group (s) containing the irwerabic position in-dicator channel is subsequent 1:/ nnintained fully inserted or fully withdrawn (as applicable), and 3 Subsequent cperatien is within the limits of Speci-fication 3.1.3.6.

d. With trore than one pulse ccunting position indicator char.nels incperable, cperaticn in MODES 1 and 2 nny continue for up to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> provided all of the reed switch position indicator channels are OPERAEE.