ML20215C367

Addenda to Preoperational Integrated Leak Rate Test Final Rept

ML20215C367
Person / Time
Site:	Vogtle
Issue date:	06/09/1987
From:	GEORGIA POWER CO.
To:
Shared Package
ML20215C354	List: ML20215C351 ML20215C367
References
SL-2613, NUDOCS 8706180088
Download: ML20215C367 (5)

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' ENCLOSURE. 6 PLANT V0GTLE - UNIT ~1 'l NRC DOCKET 50-424 OPERATING LICENSE NPF-68 ADDENDA TO PREOPERATIONAL INTEGRATED  :

LEAK RATE TEST FINAL REPORT  !

l The addenda' to the Vogtle Unit 1 Preoperational Integrated Leak Rate Test

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Final. Report submitted:to the NRC.by. Georgia Power Company letter GN-1225' :1

-dated December 12, 1986 should be. incorporated:as follows:  !

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ENCLOSURE i?

PLANT V0GTLE - UNIT 1 NRC DOCKET 50-424 OPERATING LICENSE NPF d ADDENDA TO PRE 0PERATIONAL INTEGRATED LEAK RATE TEST FINAL REPORT. -l The addenda ~ to the Vogtle Unit 1 Preoperational Integrated Leak Rat'e . Test.

Final Report submitted to the NRC by Georgia Power Company letter GN-1225 dated December 12, 1986 should be incorporated as follows:

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i 0335m 06/09/87 SL-2613

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11. Penetrations not in post-LOCA Alignment During ILET Penetration System Leakage Rate l l

Elect. #35 ILPT Pressure Sensing 1.25 SCCM FSA 20.2 68 4.2 86C 20.5 87 5.2 Total 51.35 SCCM i 3.4 Integrated Leakage Rate Measurement S,ystem a i

Instrument Description Data (No. of sensors) l

1. Absolute Mensor Range: 0-100 psia  !

Pressure Quartz Monometer Accuracy: +0.0154 Read j (2) +0.002*FS Sensitivity: +0.00lpsia Repeatability: +0.00lpsia l l

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2. Drybulb Platinum Range (Calib): 60-120degF Temperature Accuracy: +0.ldegF  ;

(30) Sensitivity: +0.0ldegF i Repeatability: +0.OldegF

3. Dewpoint Chilled Mirror Range (Calib): 40-100degF ,

Temperature Accuracy: +.54degF l (6) Sensitivity: +0.ldegF Repeatability: +0.OldegF

4. Flow Meter Differential Press Range: 0-20 SCFM  ;

(1) Accuracy: +0.1%

Repeatability: +0.254 Drybulb and dowpoint temperature sensor locations and volume fractions are provided in Table 1.

3.5 Type B & Type C Leakage Rate Results These results of the various respective tests per procedure (see refer'ence 8) are presented below.

Pene. Meas.SCCM (Max. Path) llA 747 12A 36.6

• 13A 1222.0*

138 7700

• 15 6

• Indicates an update in the measured leakage.

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Pene. Measured 1 22 1760

• l 23 380 24 6.0*

28 940

• 29 174.6*  !

34 545

• 35 323

• 40 685

• I 41 107.1 i 42 178

• l 48 6.0* j 49 19.5*  :

50 1092

• 62 63 6

67.2

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64A 6 648 6 67A 16860

• 678 11.1 68 4.22 I 69A 22.9 698 1480

• t 70A 4.4 70B 3720 11A 15.58*

718 166.3 72A 63.8 728 6 73A 509 733 6 77 22 78 108.3 79 6 80 175.8*

81 89.5 83 533

• l 84 141.2* {

86A 5770

• i 86C 16.2*

87 6 89 2.2*

100 306 Pene. Meas. SCCM Pers. Hatch 970.2*

Escape Lock 125.8*

Equip. Hatch 2.2*

Elec. Pene 27.19* '

Encap. Vessels 148.9 **  ;

Total 47,332.79 SCCM or 1.6715SCFM or .10790La

• Indicates an update in the measured leakage.

• • Indicates additional leakage path not originally included.

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4.0 ANALYSIS AND INTERPRETATION I

4.1 ILRT Test During the ILRT, five penetrations were not in post-LOCA alignment.

The total leakage rate correction for penetrations not in post-LOCA alignment and water level changes (insignificant - 2cf per. total time period) is 0.00002%/ day. i The calculated. leakage rates during the Type A for LSF and 95% UCL are shown below. Adding the total leakage rate corrections for penetrations not in post-LOCA alignment yields the corrected , leakage t rates as follows: 1 Mass Point Total Time '  !

LSF UCL LSF UCL Calculated 0.02397 0.02487 0.0236 0.02641 j Corrections 0.00002 0.00002 0.00002 0.00002 Corrected 0.02399 0.02489 0.02362 0.02643 l)

Since the corrected 95% upper confidence levels for mass point (and total time) are less than .75La (0.150%/ day), the -test results demonstrate the leakage through. the primary containment and systems is within allowable limi ts. Components penetrating primary containment' do not exceed . maximum leakage rates specified in the Vogtle Nuclear Power Plant Unit 1 FSAR and Technical. Specifications.

4.2 Instrumentation, Data and Calculations ILRT test data were gathered through sensors and a data acquisition system. The data acquisition system' received these inputs and transmitted them into a mini-computer which reduced the raw data to containment 1 (See Appendix A for a software program description. ) .eakage.

4.2.1 Instrumentation The instrumentation was chosen for its stability and.

dependability. The instrumentation used during the- ILRT satisfied all Instrument Selection GuideJ requirements. All' instrumentation performed adequately during the test.

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