ML20150B163

Proposed Tech Specs,Adding Auxiliary Shutdown Control Panel Readouts for Steam Generator Pressure & Level & Auxiliary Feedwater Flow Rate to Table 3.3-9

ML20150B163
Person / Time
Site:	Catawba
Issue date:	03/11/1988
From:	DUKE POWER CO.
To:
Shared Package
ML20150B154	List: ML20150B150 ML20150B163
References
NUDOCS 8803160204
Download: ML20150B163 (3)

Text

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lABlE 3.3-9 REH01E Sil0100WN H0N110 RING INSTRUMENTATION ~

k.

x . MINIMUM ix5 CllANNELS 2- READOUT TOTAL NO.

. OF CllANNELS . OPERABLE l0 CATION c INSlRUMENI 5 Reactor Trip 1/ trip breaker 1/ trip breaker.

d 1. Reactor Irip Breaker Indication Switchgear e.

o. At.ailiary Shutdown 2 1*

m 2. Reactor Coolant Loop AT.B llot Leg Control Panel .

Temperature Auxiliary Shutdown 2 la

3. Reactor Coolant Loop AaB Cold Control Panel Leg Terr.perature '

Auxiliary Shutdown 2' 1

4. Pressurizer Pressure Control Panel R*

Auxiliary Shutdown 2 l'

5. Pressurizer Level Control Panel Y 1/ steam generator O Auxiliary feedwater 1/ steam generator g

6. Steam Generator Pressure Pump ",tec Control Panels 1/ steam generator 1/ steam generator Auxiliary feedwater

7. Steam Generator Level Pump "~tec Control '

m Panels -AE-l gg ) 1/ steam generator 1/ steam generator w Auxiliary feedwater

$ 8. Auxiliary feedwater flow Rate 00 Pump"["[--Control Panels-lN-6 OS TuAih se oo aperation f rom remote shutdown panel.

-"Channel required to be CPEllABLE during ogW SL b C=bt belg g 00~

", 4 dr y

e0 g*

W ATTACIDfENT II DISCUSSION AND NO SIGNIFICANT flAZARDS CONSIDERATION ANALYSIS l

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DISCUSSION AND NO SIGNIFICANT HAZARDS CONSIDERATION ANALYSIS The proposed changes to Table 3.3-9, Remote readout locations for Shutdown Monitoring Instrumentation, are intended to clarify that there are two readout locations for steam generator pressure, steam generator 1cvel and auxiliary feedwater flow rate. One location is at the Auxiliary Ghutdown Panels and one is at the Auxiliary Feedwater Pump Turbine Control Panel.

These pressure, level and flow rate readouts are supplied from the same pressure, level and flow rate sensors and provide the same information to the two separate locations. Therefore, both readout locations should be listed on the Table.

10 CFR 50.92 (c) states that "a proposed amendment... involves no significant hazards considerations, if operation of the facility in accordance with the proposed amendment would not:

(1) Involve a significant increase in the probability or consequences of an accident previously evaluated; or (2) Create the possibility of a new or different kind of accident from any accident previously evaluated; or (3) Involve a significant, reduction in a margin of safety.

The proposed changes do not affect the probability or consequences of any previously evaluated accident. The changes are clarification to show another readout location on the Remote Shutdown Monitoring Instrumentation table for each of the three instruments.

The proposed changes would not create the possibility of a new or different kind of accident from any accident previously evaluated. Since the changes are provided for clarification, they do not affect the design or allowed operating modes of the station.

The proposed changes do not involve a significant reduction in a margin of safety. The changes provide clarification and therefore have no affect on any margin of safety.

For the reasons stated above, Duke Power concludes that this proposed amendment does not involve Significant Hazards Considerations.