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Proposed Tech Specs Consisting of Change Number 418,to Include New TS 3/4.7.3.1, CCW Safety Related Makeup Sys, & Associated Bases for Both Units
	ML20126H611
Person / Time
Site:	San Onofre
Issue date:	12/30/1992
From:	; SOUTHERN CALIFORNIA EDISON CO.
To:	;
Shared Package
ML20126H577	List: ML20126H574; ML20126H582; ML20126H611;
References
	NUDOCS 9301050268
	Download: ML20126H611 (8)
	v • d • e

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3/4.7 PLANT SYSTEMS 3/4.7.3.1 COMPONENT COOLING WATER SAFETY RELATED MAKEUP SYSTEM llMITING CONDITION FOR OPERATION 3.7.3.1 Two trains of Component Cooling Water (CCW) Safety Related Hakeup System shall be OPERABLE with a contained volume in the Primary Plant Makeup Storage Tank at or above the level specified in Figure 3.7-2.

APPLICABILITY:

MODES 1,2,3, and 4.

ACTION:

a.

With one CCW Safety Related Makeup flow path inoperable, restore the flow path to OPERABLE status within 7 days.

With the Primary Plant Makeup /or both CCW Safety Related Hakeu) b.

Storage Tank level less than that required by Figure 3.7-2, and flow-paths inopetable, restore the Primary Plant Makeup Storage Tan ( level and one CCW Safety Related Hakeup flow path to OPERABLE status within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , c.

With Actions a or b, above, not completed in the specified action times, be in HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months , and be in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

d.

The provisions of Specification 3.0.4 are not applicable.

SURVfillANCF RFOUIREMfHTS 4.7.3.1.1 The Primary Plant Makeup Storage Tank shall be demonstrated OPERABLE at least once per 7 days by verifying the contained water volume'is within its limits.

4.7.3.1.2 fach CCW Safety Related Hakeup flow path shall be demonstrated OPERABLE at least once per 92 days by testing the CCW makeup pumps pursuant to Specification 4.0.5.-

4.7.3.1.3 Measure CCW leakage at least once per refueling interval.

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3/4 7 PLANT SYST[MS 1

BASFS 3/ilt3.t L COMPONENT C001_ING WATfR SAfflY RftAlfD MAK(UP SYST[3 Ihe purpose of the Component Cooling Water Safety Related Hakeup System is to provide a safety related, seismically qualified water supply to the CCW following a Design Basis Event.

The Component Cooling Water Safety Related Makeup System for each Unit consists of one Primary Plant Makeup Storage Tank (PPMU Tank) and two makeup flow paths, each supplying the associated CCW critical loop.

Each flow path incorporates one 100% capacity pump and associated remote manually operated valves.

Tank 1-056 is dedicated to Unit 2 and 1-055 is dedicated to Unit 3.

For any point on the curve in figure 3.7-2, the required water level is based on the associated leak rate from the CCW system, an unrecoverable volume and a level instrumentation Total loop Uncertainty (TLU).

For example, a leak rate of 18 gpm for seven days corresponds to a volume of 181,440 gallons, if the TLU and the unrecoverable volume are added to this, the total is 203,100 gallons.

Dividing this number by the total tank volume of 303,500 gallons yields 67%.

A CCW Safety Related Makeup System is required to compensate for CCW System leakage out of the CCW system over a period of seven days after Design Basis Event.

This seven days requirement is consistent with Standard Review Plan, Section 9.2.2.

Action b includes the following three circumstances:

l. PPMu lank level is less than that required by figure 3.7-2,

2. Both CCW Safety Related Makeup flow paths are inoperable, and

3. Both circumstances 1 and 2, above, occur concurrently.

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ATTACHMENT 8

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3/4.7 PLANT SYSTLMS J/4.7.3.1 (0Jit0HGLCf9LUiG WATL!LS_^FETY RELAlfD HAK[UP SYSifH IIMITING CONDITION FOR OPFRAll0N 3.7.3.1 Two trains of Component Cooling Water (CCW) Safety Related Hakeup System shall be OPERABLE with a contained volume in the Primary Plant Hakeup Storage Tank at or above the level specified in figure 3.7-2.

APPLICABIL11Y:

H0 DES 1,2,3, and 4.

AC119111 a.

With one CCW Safety Related Hakeup flow path inoperable, restore the flow path to OPERABLE status within 7 days, b.

With the Primary Plant Makeup Storage Tank level less than that required by figure 3.7-2, and/or both CCW Safety Related Hakeu) flow paths inoperable, restore the Primary Plant Hakeup Storage Tan < level and one CCW Safety Related Hakeup flow path to OPERABLE status within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , c.

With Actions a or b, above, not completed in the specified action times, be in 110T SI ANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months , and be in COLD SHulDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , d.

The provisions of Specification 3.0.4 are not applicable.

SilRyf11lANCF Rf00lRFMENTS 4.7.3.1.1 The Primary Plant Hakeup Storage Tank shall be demonstrated OPERABLC at least once per 7 days by verifying the contained water volume is within its limits.

4.7.3.1.2-Lach CCW Safety Related Hakeup flow path shall be demonstrated OPERABLE at least once per 92 days by testing the CCW makeup-pumps pursuant to Specification 4.0.5.

-4.7.3.1.3-Heasure CCW 1eakage at least once'per refueling interv'al.

SAN ON0fRE--UNIT 3 3/4 7-11-a i

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70-60-Ej 50 st 40--

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3-4 5

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- ALLOWABLE LEAKAGE, in gpm Figure 3.7 i k

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3/4.7 PLANT SYSTEtiS BASf5 3/4.7.3.1 COMPONENT COOLING WATER SAFE 1Y RQ ATED MAKEUP SYSTEM 1he purpose of the Component Cooling Water Safety Related Hakeup System is to provide a safety related, seismically qualified water supply to the CCW following a Design Basis Event.

The Component Cooling Water Safety Related Hakeup System for each Unit consists of one Primary Plant Makeup Storage Tank (PPMU Tank) and two makeup flow paths, each supplying the associated CCW critical loop. Each flow path incorporates one 100% capacity pump and associated remote manually operated valves. Tank T-056-is dedicated to Unit 2 and T-055 is dedicated to Unit 3.

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for any point on the curve in figure 3.7-2, the required water level is based on the associated leak rate from the CCW system, an unrecoverable I

volume and -a level instrumentation Total Loop Uncertainty (TLU).

For example, a leak rate of 18 gpm for seven days corresponds to a volume of 181,440 gallons.

If the TLU and the unrecoverable volume are added to this, the total is 203,100 gallons.

Dividing this number by the total tank volume of 303,500 gallons yields 67%.

A CCW Safety Related Hakeup System is required to compensate for CCW System leakage out of the CCW system over a period of seven-days af ter Design Basis Event.

This seven days requirement is consistent with Standard Review Plan, Section 9.2.2.

Action b includes the following three circumstances:

1. PPMV Tank level is less than that required by figure 3.7-2,

2. Both CCW Safety Related Hakeup flow paths are inoperable, and

3. Both circumstances 1 and 2, above, occur concurrently.

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ML20126H611

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