ML20072B754

Proposed Tech Specs Re Traversing Incore Probe Operability Requirements

ML20072B754
Person / Time
Site:	Hatch
Issue date:	08/04/1994
From:	GEORGIA POWER CO.
To:
Shared Package
ML20072B746	List: ML20072B744 ML20072B754
References
NUDOCS 9408160232
Download: ML20072B754 (1)

Text

..

~

INSTRUMENTATION TRAVERSING INCORE PROBE SYSTEM i l

LIMITING CONDITION FOR OPERATION l

3.3.6.6 The traversing incore probe system shall be OPERABLE with: l

a. Four movable detectors, drives, and readout equipment to map the l core, and

b. Indexing equipment tc llow all required detectors to be normalized in l a common location.

I

&PPLICABILITY: i When the traversing incore probe is used for: )

a. Recalibration of the LPRM detectors and I

b. Monitoring the APLHGR, LHGR, or MCPR. l l

ACTION:

I

a. With one or more TIP measurement locations inoperable, required measurements may be performed as described in 1 or 2 below.*

1. TIP data for an inoperable measurement location may be replaced by data obtained from that string's redundant (symmetric) :ounterpart if the substitute TIP data were obtained from an operable measurement location and the control rod pattern is octant symmetric, provided the total TIP uncertainty for the present cycle has been measured to be less than 8.7 percent.

2. TIP data for an inoperable measurement location may be replaced by data obtained from the on-line core monitoring system (process computer) ,

normalized with available operating measurements, provided the total  !

number of simulated channels (measurement locations) does not exceed eight.

b. Otherwise, with the TIP system inoperable, do not use the system for the above applicable monitoring or calibration functions for more than 31 EFPD l following the last normalization. ,

1

c. The provisions of Specifications 3.0.3 and 3.0.4 are not applicable.

• Action a is applicable until the end of Cycle 12.

HATCH - UNIT 2 3/4 3-57 techsp\h\94-12u2. pro \115 l g%$ 6 P

,