ML20215A047

Proposed Changes to Tech Specs,Showing source-range Reactor Trip Instrumentation Not Needed When Breakers in Closed Position & CRD Sys Capable of Withdrawal

ML20215A047
Person / Time
Site:	Catawba
Issue date:	09/22/1986
From:	DUKE POWER CO.
To:
Shared Package
ML20215A042	List: ML20215A038 ML20215A047
References
NUDOCS 8610030472
Download: ML20215A047 (3)

Text

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1 TABLE 3.3-1 REACTOR TRIP SYSTEN INSTRUNENTATION s NINIMIN l 5:n TOTAL NO. CHANNELS CHANNELS APPLICA8LE M00ES _ ACTION TO TRIP OPERA 8LE

, . OF CHANNELS c FUNCTIONAL UNIT 1, 2 1 2

5 Manual Reactor Trip 2 1 2 3*, 4*, 58 10

> d 1. 2 1 s*

l e- 1, 2 2#

Power Range, Neutron Flux 2 3 ,

= 2. 4 1###, 2 2#

High Setpoint 2 3

a. 4

b. Low Setpoint 2#

3 1, 2 4 2

3. Power Range, Neutron Flux High Positive Rate 1, 2 2#

2 3 4

4. Power Range, Neutron Flux, High Negative Rate 188#, 2 3

{ 1 2 2

5. Intermediate Range, Neutron Flux

{ 2 4

Source Range, Neutron Flux 1 'jK g o 6.

a. Startup 2

1 2 2##[l 37 5* 5

b. Shutdown ( % f i 2

1 I 2 Sf% (*

( G i- G 3 1, 2 6#

7. Overtemperature aT 4 2 Four Loop Operation

'o m to 1, 2 6#

2 3

8. Overpower AT 4

! ES Four Loop Operation 6#

g 2 3 1

>o 4

, 82 9. Pressurizer Pressure-Low SU 4d SS T OPJ i $$PU

-u

- . m

G TABLE 3.3-1 (Continued) ,

ACTION STATEMENTS (Continued) ,

ACTION 4 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, suspend all operations involving positive reactivity changes.

ACTION 5 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or open the Reactor trip breakers, suspend all operations involving positive reactivity changes and verify Valvey ..u, , ~ , ym # -* M ace closed and secured in position within the next hour. 3 fN-23o is ACTION 6 - With the number of OPERABLE channels one.less than the Total Number of Channels, STARTUP and/or POWER OPERATION tray proceed provided the following conditions are satisfied:

a. The inoperable channel is placed in the tripped condition

. within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, and

b. The Minimum Channels OPERABLE requirement is met; however, the inoperable channel may be bypassed for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />

• for surveillance testing of other channels per Specification 4.3.1.1.

ACTION 7 - With the number of OPERABLE channels one less than the Total Number of Channels, STARTUP and/or POWER OPERATION may proceed until performance of the next required ANALOG C-2NNEL OPERATIONAL TEST provided the inoperable channel is placed i., the tripped condition within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.

ACTION 8 - With less than the Minimum Number of Channels OPERABLE, within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> determine by observation of the associated permissive status light (s) that the interlock is in its required state for the existing plant condition, or apply Specification 3.0.3.

ACTION 9 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, be in at least HOT STAN08Y within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; however, one channel may be bypassed for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for surveillance testing per Specification 4.3.1.1, provided the other channel is OPERA 8LE.

ACTION 10 -With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or open the Reactor trip breakers within the next hour.

ACTION 11 -With the number of OPERABLE channels less than the Total Number of Channels, operation may continue provided the inoperable channels are placed in the tripped cogdition within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.

CATAWBA - UNITS 1 & 2 3/4 3-6

3/4.9 REFUELING OPERATIONS 3/4.9.1 BORON CONCENTRATION LIMITING CONDITION FOR OPERATION 3.9.1 The boron concentration of all filled portions of the Reactor Coolant System and the refueling canal shall be maintained uniform an either:

a. A K,ff of 0.95 or less, or

b. A boron concentration of greater than or equal to 2000 ppa.

APPLICABILITY: MODE 6."

ACTION:

' With the requirements of the above specification not satisfied, immediately suspend all operations involving CORE ALTERATIONS or positive reactivity i

J changes and initiate and continue boration at greater than or equal to 30 gpa of a solution containing greater than or equal to 7000 ppa boron or its is reduced to less than or equal to 0.95 or the' boron equivalent until KconcentrationisrINoredtogreaterthanorequalto2000ppe,whicheveris the more restrictive.

J SURVEILLANCE REQUIREMENTS I

4.9.1.1 The more restrictive of the above two reactivity conditions shall be l determined prior to:

a. Removing or unbolting the reactor vessel head, and I

b. Withdrawal of any full-length control rod in excess of 3 feet from its fully inserted position within the reactor vessel.

4.9.1.2 The boron concentration of the Reactor Coolant System and the refueling J

canal shall be determined by chemical analysis at least once per 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.

(uM S M e< uu_ .' " ""-Ot0, ""-241. rd /i-244 shall be verified

\

00 )') 4,9,1,3} y,j y,g --,-23 0 closed and secured in position by -

' -t 'r' ;n:r at least once per 31 days.

"The reactor shall be maintained in MODE 6 whenever fuel the head removed.

i 3/4 9-1

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. _____ CATAWBA - UNITS 1 & 2

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