ML20198N204

Revised Tech Specs Change,Page 3/4 3-54,providing Early Implementation of Containment Floor Drain Sump Water Level Instrumentation Requirements

ML20198N204
Person / Time
Site:	Byron
Issue date:	12/29/1998
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML20198N197	List: ML20198N195 ML20198N204
References
NUDOCS 9901060055
Download: ML20198N204 (1)

Text

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TABLE 3.3-10 ACCIDENT MONITORING INSTRUMENTATION-as-g- REQUIRED MINIMUM-

.g g NO. OF CHANNELS

, INSTRUMENT-CHANNELS OPERA 8tE g 1. Containment Pressure 2 1 -

^

h- 2. Reactor Coolant Outlet Temperature :TH0T (Wide Range) 2 1

3. _ Reactor Coolant Inlet Temperature - TCOLD (Wide. Range) 2 1 y 4. Reactor Coolant Pressure - Wide Range 2 1

5. Pressurizer Water Level 2 1.

6. Steam Line Pressure 2/ steam generator. 1/ steam generator

7. Steam Generator Water Level - Narrow Range 1/ steam generator '1/ steam generator-

8. Steam Generator Water Level - Wide Range 1/ steam generator 1/ steam generator

9. Refueling. Water Storage Tank Water Level 2 1 g 10. Auxiliary Feedater Flow Rate 2/ steam generator 1/ steam generator-

[ 11. PORY Position Indicator * (0 pen / Closed) 1/ Valve 1/ Valve h 12. PORY Block Valve Position Indicator ** (0 pen / Closed) 1/ Valve 1/ Valve

13. Safety Valve Position Indicator (Open/ Closed) 1/ Valve- 1/ Valve

--I'_ C--t e 8 --- -rt r1--- n-et- p - u3 .. t.o.i (u...- no ) 7  ;

15. Cortainment Water Level (Wide Range) 2 1 1G. In Core Thermocouples 4/ core quadrant 2/ core quadrant

17. Containment High Range Area Radiation N.A. 1

18. Auxiliary Building Vent Stack - Wide Range Noble Gas N.A.

1/ stack

19. Main Steam Line Radiation N.A. 1/sta line 2> 20. Reactor Vessel Water Level 2 1

21. Reactor Coolant Subcooling Ma'rgin Monitor 2*** 1***

P 3

"b *Not applicable if the associated block valve is in the closed position.

• • Not applicable if the block valve is verified in the closed position and power is removed.

ge -) ***Use monitoring channels (10 highest average core exit temperatures) in conjunction with RCS Pressure (item 4 above) to determine the subcooling margin.

45 1 9901060055 981229 ADOCK05000454,k PDR P PDR d

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