ML19325E120

Proposed Tech Spec Table 4.3-1 Re Reactor Trip Sys Instrumentation Surveillance Requirements

ML19325E120
Person / Time
Site:	South Texas
Issue date:	10/25/1989
From:	HOUSTON LIGHTING & POWER CO.
To:
Shared Package
ML19325E119	List: ML19325E118 ML19325E120
References
ST-HL-AE-3078, NUDOCS 8911020017
Download: ML19325E120 (3)

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L ATTACHMENT 2 e

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REACTOR TRIP SYSTEM INSTRUMENTATION SURVEILLANdE REQUIREMENTS- j .

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3" ANALOG ACTUATING ~ ' MODES FOR CllANNEl. OfVICE- -

- WiliCII .. _4 CilANNEL -CllANNEL 01' ERA 110NAL OPLHAll0NAL- ~AC104110N  : SURVEILLANCE.

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1 E FUNCTIONAL UNIT CllECK CAllBRATION ILSI 'IESI LOGIC TESI: ~ IS-REQUIRLD b ~1,'2, 3*,~4*,:5*

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1. Manual Reactor Trip. N.A. N.A. N.A. R(14)~~ N.A. .

2. Power Range, Neutron  ;

[ Flux :r

a. High Setpoint S D(2,4), Q(17) N.A. .N.A.

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b. Low Setpoint S R(4) S/IJ(1) N.A. N.A. 1***, 2 2 3. Power Range, Neutron N.A. R(4) Q(17) .N.A. N.A. 1, 2 i

y Flux,

- High Positive Rate

4. Power Range, Neutron N.A. R(4) Q(17) N.A. N.A. .1, 2 Flux, High Negative Rate R(4,Sa) N.A. -N.A. 1***, 2 l g 5. Intermediate Range, S S/U(1) .

- Neutron Flux

6. Source Range, Neutron S R(4,Sa) S/U(1),

'Q(9)(17) .N.A. N.A. 2**, 3, 4, 5 Flux (Unit 1) t Source Range, Neutron 5 R(4,Sb) S/U(1), h!f k N.A. N.A. 2**, 3, 4, 5- mrg g Flux (Unit 2) Q(9)(17) 3,4,5 k9M

7. Extended Range, S R(4) Q(12, 17) N.A. 'N.A.

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Neutron Flux g l F 8. Overtemperature AT S R Q(17) 'N.A. N.A. 1, 2 g[

• 9. Overpower AT S R -Q(17) N.A. N.A. 1, 2 W

10. Pressurizer Pressure

--Low 5 R ~Q(17)

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ATTACHMENT 2 '

ST HL-AE-307f g[ ',' "' " TABLE'4.3-1 (Continued): PAGE 13 -.0F 3 TABLE NOTATIONS ,

b<, "When the Reactor Trip System breakers are closed and the Control Rod Drive

, System is capable of rod withdrawal. . .

• • Below P-6 (Intermediate Range Neutron Flux Interlock)-Setpoint.- -

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• • • Below P-10 (Low Setpoint Power Range Neutron Flux Interlock) Setpoint .

( 1 (1) . If not performed in previous 31 days. -

(2) Comparison of calorimetric to excore power indication above 15% of RATED [

THERMAL POWER. Adjust excore channel gains consistent with calorimetric power if absolute difference is greater than 2%. The provisions of

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p Specification 4.0.4 are not applicable to entry into MODE 2 or 1. '

(3) Single point comparison of incore to excore' AXIAL FLUX DIFFERENCE  ;

above 15% of RATED THERilAL POWER. Recalibrate if the absolute difference is greater than or equal to 3%. The provisions of 2 or 1.

Sjoe :i ication 4.0.4gare not agplicable for entryg,nto pse ~ g yTe sagt.' ge-exchuded from

, nsan w u CALIBRATION st.,,J$m CHANNEL mi MODjIg.

m (4) N ron ctors may . J (Sa) Detector plateau curves shall be obtained and evaluated. For the Inter- l!.;

mediate Range and Power Range Neutron Flux channels the provisions of Specification 4.0.4 are not applicable for entry into MODE 2 or 1. 'l (5b) With the high voltage setting varied as recommended by the manufacturer, an initial discriminator bias curve shall be measured for each detector.

Subsequent discriminator bias curves shall be obtained, evaluated and >

compared to the initial curves. 1 (6) Incore - Excore Calibration, above 75% of RATED THERMAL POWER. The l provisi licable for entry into MODEor 2 'gns

1. Fn of Specification A pue e of;4.0.4 are not t4 wud / app /w re6"'*Ms 9 vad*' h od % a.S Ac4 e m 9 2. E P P b . i (7) Each train shall be tested at least every 62 days on a STAGGERED h TEST BASIS.

L~ (8) (Not Used)

(S) Quarterly surveillance in, MODES 3*, 4*, and 5* shall also include verification that permissives P-6 and P-10 are in their required state for existing plant conditions by observation of the permissive annunciator window. ,

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l SOUTH TEXA5 - UN115 1 & 2 3/4 3-14 Unit 1 - Amendment No. 4 L

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