ML20196B955

Proposed Tech Specs Revising Level Limits for Spray Additive Tank to Be Consistent W/Specified Vols & Deleting Control Bldg Sump Effluent Line Radiation Monitor Based on Piping Mod Which Provides for Monitoring by Other Instrumentation

ML20196B955
Person / Time
Site:	Vogtle
Issue date:	02/04/1988
From:	GEORGIA POWER CO.
To:
Shared Package
ML20196B926	List: ML20196B923 ML20196B955
References
NUDOCS 8802120199
Download: ML20196B955 (4)

Text

- .

o O TABLE 3.3-9

m RAOIDACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION i c-

-4 MINIMUM

-. CHANNELS INSTRUMENT OPERABLE ACTION

1. Radioactivity Monitors Providing Alarm and Automatic Termination of Release

a. Liquid Radwaste Effluent Line (RE-0018) 1 37

b. Steam Generator 81owdown Ef fluent line (RE-0021) 1 33.

c. Turbine Building (Floor Orains) Sumps Effluent Line (RE-0848) 1 23 1

2. Radioactivity Monitors Providing Alann 8ut Not Providing w Automatic Termination of Release m ~-

• a. Nuclear Service Cooling Water System Effluent Line  ?

(RE-0020 A & 8) 1 39

3. Flow Rate Measurement Devices

a. Liquid Radwaste Effluent line (FT-0018) 1 40

b. Steam Generator Blowdown Effluent Line (FT-0021) 1 40 y c. Flow to 810wdown Sump (AFQI-7620, FR-7620, pen 1) 1 40 S

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RADI0 ACTIVE LIOUID EFFLUENT MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS S

C 35 ANALOG

-4 CHANNEL

• • CHANNEL SOURCE CHANNEL OPERATIONAL INSTRunENT CHECK CHECK CALIBRATION TEST

1. Radioactivity Monitors Providing Alarm and Automatic Termination of Release

a. Liquid Radwaste Effluent Line (RE-0018) D P R(3) Q(1)

b. Steam Generator Slowdown Effluent Line (RE-0021) D M R(3) Q(1) 40 c. Turbine Building (Floor Drains) Sumps Effluent Line (RE-0848) D M R(3) Q(1) i*

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' 2. Radioactitity Monitors Providing Alarm But Not Providing Automatic Termination of Release Nuclear Service Cooling W ater System Effluent Line (RE-0020 A & 8) D M R(3) Q(2)

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4 CONTAINMENT SYSTEMS SPRAY ADDITIVE SYSTEM LIMITING CONDITION FOR OPERATION 3.6.2.2 The Spray Additive System Shall be OPERABLE with:

a. A spray additive tank containing a volume of between 3700 (89.9%) and 4000 (97.2%) gallons (LI-0931A, LI-09318) of between 30 and 32% by weight NaOH solution, and

b. Two spray additive eductors each capable of adding NaOH solution f rom the spray additive tank to a Containment Spray System pump flow.

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

ACTION:

With the Spray Additive System inoperable, restore the system to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STAN0BY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; restore the Spray Additive System to OPERABLE status within the next 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in COLD SHUT 00WN 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 4.6.2.2 The Spray Additive System shall be demonstrated OPERABLE:

a. At least once per 31 days by verifying that each valve (manual, power-operated, or automatic) in the flow path that is not locked, sealed, or otherwise secured in position, is in its correct position;

b. At least once per 6 months by:

1) Verifying the contained solution volume in the tank, and

2) Verifying the concentration of the NaOH solution by chemical analysis,

c. At least once per 18 months during shutdown, by verifying that each automatic valve in the flow path actuates to its correct position on a containment spray actuation test signal; and

d. At least once per 5 years by verifying each eductor suction flow rate (to be determined during preoperational tests) by isolating the spray additive tank, opening the valves in the miniflow lines, and the valve in the eductor test line, and running the respective pump:

1) Train A 130 1 30 gpm, and

2) Train B 120 1 30 gpm.

V0GTLE - UNIT 1 3/4 6-14 Proposed TS/0184q/0329

1 CONTAINMENT SYSTEMS I l

l 8ASES l I

CONTAINMENT VENTILATION SYSTEM (Continued)

The use of the containment purge lines is restricted to the 14-inch purge supply and exhaust isolation valves since, unlike the 24-inch valves, the 14-inch valves are capaole of closing during a LOCA or steam line break accident. There-fore, the SITE BOUNDARY dose guideline of 10 CFR Part 100 would not be exceeded  ;

in the event of an accident during containment PURGING operatior.. Only safety- )

related reasons; e 9., containment pressure control or the reduction of air-borne radioactivity to f acilitate personnel access for surveillance and main-tenance activities, should be used to justify the opening of these isolation valves.

Leakage integrity tests with a maximum allowable leakage rate for containment purge supply and exhaust supply valves will provide early indication of resilient material seal degradation and will allow opportunity for repair before gross leak-age failures could develop. The 0.60 L a leakage limit of Specification 3.6.1.2b.

shall not be exceeded when the leakage rates determined by the leakage integrity tests of these valves are added to the previously determined total for all valves and penetrations subject to Type B and C tests.

3/4.6.2 DEPRESSURIZATION AND COOLING SYSTEMS 3/4.6.2.1 CONTAINMENT SPRAY SYSTEM The OPERABILITY of the Containment Spray System ensures that containment depressurization and cooling capability will be available in the event of a LOCA or steam line break. The pressure reduction and resultant lower containment leakage rate are consistent with the assumptions used in the safety analyses.

The Containment Spray System and the Containment Cooling System both provide post-accident cooling of the containment atmesphere. However, the Containment Spray System also provides a nmchanism for removing iodine from the containment atmosphere and therefore the time requirements for restoring sn inoperable Spray System to OPERABLE status have been maintained consistent with that assigned other inoperable ESF equipment.

3/4.6.2.2 SPRAY ADDITIVE SYSTEM The OPERABILITY of the Spray Additive System ensures that sufficient NaOH is added to the containment spray in the event of a LOCA. The limits on NaOH volume and concentration ensure a pH value of between 8.5 and 10.5 for the solution recirculated within containment af ter a LOCA. This pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components. The solution volume limits (3700-4000 gallons) represent the required solution to be delivered (i.e., the delivered solution volume is that volume above the tank discharge). These assumptions are consistent with the iodine removal efficiency assumed in the safety analyses.

YOGTLE - UNIT 1 B 3/4 6-3 Proposed TS/0185q/0329