ML20062B111

Forwards Suppl & Corrected Data to Be Included in Rept on Reactor Containment Bldg Integrated Leak Rate Test

ML20062B111
Person / Time
Site:	Calvert Cliffs
Issue date:	10/16/1978
From:	Lundvall A BALTIMORE GAS & ELECTRIC CO.
To:	Office of Nuclear Reactor Regulation
References
NUDOCS 7810230148
Download: ML20062B111 (4)

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J B ALTIMORE GAS AND ELECTRIC COMPANY b3.Uso9 74Esl m ALW9m Muray,L ANf; 21203 D.C .

Aamu. c.tu ov m .s . October 16, 1970 )

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Su ces, Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Comission Washington, D. C. 20555 l

ATTENTION: Mr. Robert W. Reid, Chief Operating Reactors Branch #4 Division of Operating Reactors

SUBJECT:

Calvert Cliffs Nuclea . Plant Unit No.1, Docket . 50-317

(.._) Reactor Containment Integrated Leakage Rate Test Report

REFERENCE:

(1) 10 CFR 50, Appendix J (2) Calvert Cliffs Nuclear Power Plant Unit No.1, Docket No. 50-317

, Reactor Containment Building Integrated Leakage Rate Test Report, dated July 13, 1978 Gentlemen:

During March 1978, Unit No.1 successfully conducted a periodic reactor containment building integrated leak rate test in accordance withreference(1). The results of this test were forwarded for your

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reviewasreference(2). Enclosed is supplementary and corrected data to be included in this report. r ' >7 Very truly yours.

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. A.E.Lu[dva\l,Jr. i Vice President - Supply AEL/MJM/gfc .

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i PENETRATION LEAKAGE SIM4ARY_

PEN. NO. FUNCTION VALVES LEAKAGE (sccm) .

PRE OP 12/5/75 5/1/76 3/24/77 3/30/78 60 Steam to Reactor Head 130-2, 19-1 0 1 - 5 15 Cleanup Area

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Refueling Pool Cooling 76Y1, 293-M-1, 293M-1, 0 1 - 51 0 61 293M-1 Containment Heating MOV-6579 0 - 3 333H 380 62 .

Containment Heating 238-1 55 9 - 22 0 64 Equipment Hatch 0 - 0 5 6 67 Personnel Lock 1680 8430 29591 8175 3699 68 Emergency Escape Lock 0 1058 3699 462 0 69 Steam Generator 11-1 0 0 28 288 50 Secondary Manways 11-2 0 - 64 192 110 12-1 0 0 834B 338 41

. 12-2 0 - 16 421 59 i

TOTAL 3537 28471 142954 61430 35303 s.

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t PENETRATION LEAKAGE

SUMMARY

PEN. NO. FUNCTION LEAKAGE (sccm) l 10/8/74 4/18/75 10/6/76 9/26/77 6749 5887 18.494 I 1850 68 Personnel Lock K 630 1849 0 69 1 Emergency Escape Lock 1050 ,

. *This table sumarizes the air lock leak tests not covered in the annual penetration leakage sumary.

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Page 86a FOOTNOTES (Continued)

I. As found leakage was 59,183 secm. After the adjusted leakage dropped to the reported e. valv,, door The as found packing was  ;

leakage when added to the remaining penetration leakage did not exceed the technical specification limit.

J. During this reporting period a total of 325 personnel lock door seal tests were conducted. The test was performed satisfactorily in all but one case when the door was re- ,

quired to be operable. On 3/24/77 the outer door seal was found leaking at 267 seem exceeding the technical specifi-cation limit by 204 secm. The seal was repaired an retested satisfactqrily.

i K. During this reporting period a total of 28 emergency escape lock seal tests were conducted. In all cases when the door

(]) was required to be operable the test was performed satisfactorily.

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