ML20086M360

Proposed,Redrawn TS Figure 3.1-2 Re RCS Critical Boron Concentration

ML20086M360
Person / Time
Site:	Millstone
Issue date:	12/11/1991
From:	NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20086M359	List: B13940, Application for Amend to License NPF-49,changing TS Figure 3.1-2 to Accurately Reflect Correct Graph Location for Shutdown Margin,Esfas Instrumentation,Containment Sys & Control Room Emergency Ventilation ML20086M360
References
NUDOCS 9112170374
Download: ML20086M360 (5)

Text

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Docket Nou@-423 f!!3940 Attachment 1 Millstone Nuclear Power Station, Unit llo. 3 Proposed Technical Specification Change Shutdown Margin, ESFAS Instrumentation, Containment Systems, and Control Room Emergency Ventilation December 1991 3

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l MILLSTONE - UNIT 3 3/4 1-5 Amendment Nn. 29, 50, 63 '

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4 TABLE'3.3-4-(Continued)

ENGINEERED SAFETY FEATURES ACTUATION SYSTEM !NSTRUMENTATION TRIP SETPOINTS ..

g SENSOR a: - TOTAL . ERROR 7 FUNCTIONAL UNIT 'LOWANCE (TA) Z. (S) TRIP SETPOINT ALLOWABLE VALUE.

E 3. Containment Isolation'(Continued) w 2) Automatic Actuation Logic N.A. N.A; N.A. N.A. N.A.

and Actuation Relays

3) Safety Injectior.- See Item 1. Above for all Safety Injection Trip Setpoints and Allowable Values.

b. Phase."B" Isolatio"

1) Manual Initiation N.A. N.A. 1A. N.A. N.A.

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2) Automatic Actuation N.A. . N.A. N.A. N. A. . N.A.

w Logic and Actuation y Relays

3) Containment. Pressure--- 3.3 1.01 1.75 5 8.0 psig 1 8.8 psig

~High-3

4. 5 team Line Isolation

a. Manual Initiation N.A. N.A. N.A. N.A. N.A.

b. Automatic Actuation. Logic N.A. N.A. N.A. N.A. N.A.

and Actuation Relays

c. Containment. Pressure--High-2 3.3 1.01 1.75 1 3.0 psig s 3.8 psig

d. Steam Line Pressure--Low 17.7 15.6 2.2 2 658.6 psig* 2 648.3 psig*

e. Steam Line Pressure - 5.0' O.5 0 s'100 psi /s** 5 122.7 psi /s**

Negative Rate--High

CONTAINMENT SYSTEMS

-3/4.6.3 CONTAINMENT ISOLATION VALYLS IJMITINS_CD!(QlT10N f01 QEERAT10N ,.

3,6.3 -The containment isolation valves shall be OPERABLE with isolation times less than or equal to the required isolation times.

APPLIC&1 Lily: MODES 1, 2, 3, and 4.

AGil0!i:

With one or more of the isolation valve (s) inoperable, maintain at least one isolation valve OPERABLE in each affected penetration that is open and:

a, Restore the inoperable valve (s) to OPERABLE status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, or

b. Isolate each affected penetration within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> by use of at least one deactivated automatic valve secured in the isolation position, or

c. Isolate each affected penetration within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> by use of at least one closed manual valve or blind flange, or

, d. Be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEllLANCE RE0VIREMEN,lS 4.6.3.1 Each isolation valve shall be demonstrated OPERABLE prior to returning the valve to service af ter maintenance, repair, or replacement work is performed on the valve or its associated actuator, control, or power

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-circuit by performance of a cycling test and verification of isolation time.

4.6.3.2 Each isolation valve shall be demonstrated OPERABLE during the COLD SHUTDOWN or REf!!Ec!NG MODE- at least once per 18 months by:

a. Verifying that on a Phase "A" Isolation test signal, each Phase "A" isolation valve actuates to its isolation position,

b. Verifying that on a Phase "B" Isolation test signal, each Phase "B" isolation valve actuates to its isolation position, and-

c. Verifying that on a Containment High Radiation test signal, each purge supply and exhaust isolation valve actuetes to its isolation position.

4.6.3.3 The isolation time of each power-operated or automatic valve shall be determined to be within its limit when tested pursuant to Specification 4.0.5.

MILLSTONE - UNIT 3 3/4 6-15 AmendmentNo.JE,5/ j q-_ 00st l

PLANT SYSTEMS

}]L7.7 CONTROL RDQfi F3ERGENCY VEN111AIJON SYSTEM >

LIMITING CONF)JJJON FOR OPERATION 3.7.7 Two independent Control Room Emergency Air Filtration Systems shall be OPERABLE.

APPLICABILITY: All MODES.

ACTION:

MODES 1, 2, 3 and 4:

With one Control Room Emergency Air filtration System inoperable, restore the inoperable system to OPERABLE status within 7 days or be in at least HOT STANOBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

MODES 5 and 6: ,

a. With one Control Room Emnrgency Air Filtration System inoperable, (1) restore inoperable Control Room Emergency Air Filtration System to service within 7-days QI (2) initiate and maintain operation of OPERABLE Control' Room Emergency Air Filtration System in the recirculation mode,

b. With one Control Room Emergency Air Filtration System inoperable, '

And the OPERABLE Control Room Emergency Air Filtration System is not capable of being supplied oy its emergency power supply, suspend all operations involving CORE ALTERATIONS or positive reactivity changes.

c. With both Control Room Emergency Air Filtration Systems inoperable, suspend all operations involving CORE ALTERATIONS or positive reactivity changes.

SURVEILLANCE RE0VIRFELNJL 4.7.7 Each Control Room Emergency Air Filtration System shall be demonstrated 0PERABLE:

a. .At least uwe per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by verifying that the control room air temperature is less than or equal to 95'F;

.. b. At least once per 31 days on a STAGGERED TEST BASIS by initiating, l from the control room, flow through the HEPA filters and charcoal L adsorbers and verifying the system flow rate of 1,120 cfm 20%-and that the system operates for at least 10 continuous hours with the heaters operating; l

L MILLSTONE - UNIT-3 3/4 7-15 Amendment No. 2 0053