ML20041A221

Proposed Tech Specs Re Electrical Power Sys & Containment Sys & Table 3.6-2 Concerning Containment Isolation Valves

ML20041A221
Person / Time
Site:	Sequoyah
Issue date:	12/10/1981
From:	TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML20041A218	List: ML20041A217 ML20041A221 ML20041A222
References
NUDOCS 8202190287
Download: ML20041A221 (5)

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ELECIIICAL POWER SYSIENS SURVEILLANCE REQUIREMENTS (Continned)

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d. At least once per 18 months by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status all of the actual emergency loads for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> when the battery is subjected to a battery service test.

e. At least once per 60 months, during shutdown, by verifying that the l

battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test. This performance discharge test shall be performed subsequent to the satisfactory completion of 1

the required battery service test.

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SEQUOYAH - UNIT.1 3/4 8-13

• CONTAINNENT SYSTEMS

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lqg BED TEMPERATURE MONITORING SYSTEM

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-LIMITING CONDITION FOR OPERATION ,

3.6.5.2 The ice bed temperature monitoring system shall be OPERABLE with at least 2 OPERABLE RTD channels in the ice bed at each of 3 basic elevations (10 '6 ", 30'9" and 55 ' above the floor of the ice condenser) for each one third of the ice condenser.

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION

a. With the ice bed temperature indication not available in the main control room, determine the ice bed temperature at the local ice condenser temperature monitoring panel every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />,

b. With the ice be'd temperature monitoring system inoperable, and unable to determine ice bed temperature at the local panel, POWER OPERATION may continue for up to 30 days provided:

1. The ice compartment lower inlet doors, intermediate deck doors, and top deck doors are closed;

2. The last recorded mean ice bed temperature was less than or equal to 20*F and steady; and

3. The ice condenser cooling system is OPERABLE with at least:

a) 21 OPERABLE air handling units, i

b) 2 OPERABLE glycol circulating pumps, and c) 3 OPERABLE refrigerant units; Otherwise, be in at least HOT STANDBY within 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 />,

c. With the ice bed temperature monitoring system inoperable and unable to determine the ice bed temperatures by alternate means and with the ice condenser cooling system not satisfying the minimum components OPERABILITY requirements of a.3 above, POWER OPERATION may continue for up to 6 days provided the ice compartment lower inlet doors, intermediate deck doors, and top deck doors are closed and the last recorded mean ice bed temperature was less than or equal to 15'F and steady; otherwise, 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 />.

SURVEILLANCE REQUIREMENTS 4.6.5.2 The ice bed temperature monitoring system shall be determined OPERABLE by perf ormance of a CHANNEL CHECK at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

SEQUOYAH - UNIT 1 3/4 6-28

TABLE 3.6-2 CONTAINMENT ISOLATION VALVES VALVE NUMBRD FUNCTION MAXIMUM ISOLATION TIME (Seconds)

A. PHASE 'A' ISOLATION 1 FCV-1-7 SG Blow Dn 2 FCV-1-14 10 SG Blow Dn 10

3. FCV-1-25 SG Blow Dn 4 FCV-1-32 10 SG Blow Dn 10 5 FCV-1-181 SG Blow Dn 6 FCV-1-182 15 SG Blow Dn 15

7. FCV-1-183 SG Blow Dn 8 FCV-1-184 15 SG Blow Dn 15 9 FCV-31C-222 CW-Inst Room Cirs 10 10 FCV-31C-223 CW-Inst Room C1rs 10 11 FCV-31C-224 12 CW-Inst Room Clrs 10 FCV-31C-225 CW-Inst Room Cirs 13 FCV-31C-229 10 14 CW-Inst Room Clrs 10 FCV-31C-230 CW-Inst Room Cirs

15. FCV-31C-231 10 16 CW-Inst Room Cirs 10 FCV-31C-232 CW-Inst Room Clrs 17 . FCV-43-22 10 Sample RC Outlet Hdrs 10 18 FCV-43-23 Sample RC Outlet Hdra

19. . FCV-43-55 10 SG Blow Dn Sample Line 10 20 FCV-43-58 SG Blow Dn Sample Line 10 21 FCV-43-61 SG Blow Da Sample Line 10 22 FCV-43-64 SG Blow Dn Sample Line 10 23 FCV-61-96 ,

Gylcol Inlet to Floor Cooler 30

24. FCV-61-97 Gylcol Inlet to Floor Cooler

25. FCV-61-110 30 26.

Gylcol Outlet to Floor Cooler 30 FCV-61-122 Gylcol Outlet to Floor Cooler

27. FCV-61-191 30 28 Ice Condenser - Gylcol In 30 FCV-61-192 Ice Condenser - Gylcol In

29. FCV-61-193 30 Ice Condenser - Gylcol out 30

30. FCV-61-194 Ice Condenser - Gylcol Out

31. FCV-62-61 30 RCP Seals 10 SEQUOYAH - UNIT 1 3/4 6-19

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