ML20062B111
| 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.
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October 16, 1970 v.u........,
Su ces, Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Comission Washington, D. C.
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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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Page 85 i
PENETRATION LEAKAGE SIM4ARY_
PEN. NO.
FUNCTION VALVES LEAKAGE (sccm)
PRE OP 12/5/75 5/1/76 3/24/77 3/30/78 5
15 60 Steam to Reactor Head 130-2, 19-1 0
1 Cleanup Area
~
51 0
61 Refueling Pool Cooling 76Y1, 293-M-1, 293M-1, 0
1 293M-1 3
333H 380 62 Containment Heating MOV-6579 0
22 0
64 Containment Heating 238-1 55 9
67 Equipment Hatch 0
0 5
6 68 Personnel Lock 1680 8430 29591 8175 3699 69 Emergency Escape Lock 0
1058 3699 462 0
Steam Generator 11-1 0
0 28 288 50 64 192 110 Secondary Manways 11-2 0
12-1 0
0 834B 338 41 16 421 59 12-2 0
i TOTAL 3537 28471 142954 61430 35303 s.
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Page 85a t
PENETRATION LEAKAGE
SUMMARY
PEN. NO.
FUNCTION LEAKAGE (sccm) l 10/8/74 4/18/75 10/6/76 9/26/77 I
68 Personnel Lock 6749 5887 18.494 1850 K
69 1
Emergency Escape Lock 1050 630 1849 0
- This table sumarizes the air lock leak tests not covered in the annual penetration leakage sumary.
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Page 86a FOOTNOTES (Continued) adjusted leakage dropped to the reported valv,, door packing was As found leakage was 59,183 secm. After the I.
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The as found 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.
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During this reporting period a total of 28 emergency escape
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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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