ML20236X794

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Forwards marked-up Tech Spec Page 3/4 6-2 W/Value of Max Allowable Leakage Rate at Containment Vessel Reduced Test Pressure for Facility
ML20236X794
Person / Time
Site: Braidwood Constellation icon.png
Issue date: 12/01/1987
From: Hunsader S
COMMONWEALTH EDISON CO.
To: Murley T
Office of Nuclear Reactor Regulation
References
3864K, NUDOCS 8712100270
Download: ML20236X794 (2)


Text

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[D Comm:nwrith Edison I O ) OneAddress First National Plaza Chicago, Box 767- Illinois 4 ,

( Reply to: PoTOffice

\ , Chicago, liknois 60690 - 0767 i

December 1, 1987 Mr. Thomas E. Murley, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555 Attention: Document Control Desk

Subject:

Braidwood Station Unit 2 Containment Leakage NRC Docket No. 50-457 Reference (a): NUREG-1276, Technical Specifications for Braidwood Station, dated July, 1987

Dear Mr. Murley:

Pursuant to 10 CFR 50 Appendix J, Commonwealth Edison Company is providing the value of the maximum allowable leakage rate (L t ) at the containment vessel reduced test pressure (P t), obtained during the i containment integrated leakage rate test (ILRT). This value is to be included in reference (a).

A The value of LT for Braidwood Unit 2 is 0.07%. Attachment A includes a marked-up Technical Specification page 3/4 6-2 with this value added.

Please address any questions concerning this matter to this office.

Very truly yours

+vP &

S. C. Hunsader Nuclear Licensing Administrator cc: S. Sands NRC RIII Bra $dwood Resident Inspector a

3864K v B712100270 871201 k PDR ADOCK 05000457 f PDR i

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CONTAINMENT SYSTEMS l' CONTAINMENT LEAKAGE LIMITING CONDITION FOR OPERATION ~

3. 6.1. 2 Containment leakage rates shall be limited to:
a. An overall integrated leakage rate of:
1) Less than or equal to L,, 0.10% by weight of the containment air per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at Pa , 44.4 psig, or L j
2) Less than or equal to' Lg , 0.0 - eight of the containment air per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> for Unit 1 (kates y weight of the contain-mcnt air per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> for Un W Pt , 22.2 psig. '
b. O . o ]

A combined leakage rate of less than 0.60 L, for all penetrations and valves subject to Type 8 and C tests, when pressurized to P

  • a APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

With either the measured overall integrated containment leakage rate exceeding 0.75 L a r 0.75 L , as applicable, or the measured combined leakage rate for t

all penetrations and valves subject to Types B and C tests exceeding 0.60 L,,

restore the overall integrated leakage rate to less than 0.75 L, or less than 0.75 Lt , as applicable, and the combined leakage rate for all penetrations subject to Type B and C tests to less than 0.60aL prior to increasing the Reactor Coolant System temperature above 200 F.

SURVEILLANCE REQUIREMENTS I 1

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4. 6.1. 2 The containment leakage rates shall be demonstrated at the following test schedule and shall be determined in conformance w';h the criteria speci-fied in Appendix J of 10 CFR Part 50 using the methods and provisions of ANSI N45.4-1972:
a. Three Type A tests (Overall Integrated Containment Leakage Rate) shall be conducted at 40 1 10 month intervals during shutdown at a pressure not less than Pa , 44.4 psig, r Pt, 22.2 psig, during {

each 10 year service period. The third test of each set shall be I conducted during the shutdown for the 10 year plant inservice inspection; 1 BRAIDWOOD - UNITS 1 & 2 3/4 6-2 '

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