ML20215E960

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Forwards Rev 0 to Procedure Bwvp 200-1077, Leak Testing of Potentially Radioactive Components Outside of Containment, to Fulfill 860826 Commitment to Provide Leak Detection Program
ML20215E960
Person / Time
Site: Braidwood Constellation icon.png
Issue date: 06/11/1987
From: Hunsader S
COMMONWEALTH EDISON CO.
To: Murley T
Office of Nuclear Reactor Regulation
Shared Package
ML20215E962 List:
References
3197K, NUDOCS 8706220173
Download: ML20215E960 (2)


Text

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im = [ -.t Common:;ealth Edison Ora First N:lional Plaza. Chicago, Illinois Address Reply to: Post Office Box 767 j

- Chicago, Illinois 60690 0767 i

June 11, 1987 Mr. Thomas E. Murley, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555

Subject:

Braidwood Station Unit 1 Interim Operation of VA System NRC Docket No. 50-456

References:

(a) August 26, 1986 A.D. Miosi letter to H.R. Denton (b) NUREG - 1002, Safety Evaluation Report, Supplement No. 2, dated October, 1986 i

Dear Mr. Murley:

Reference (a) provided the Interim Operation Plan for the Braidwood  !

Auxiliary Building Ventilation (VA) System. The plan made provisions for a leakage monitoring program to ensure that offsite and control room radiological dose limits are not exceeded prior to the completion of the VA system Unit 1 preoperational testing. Reference (b) provided the NRC acceptance of that plan and requested that the manner in which the ECCS equipment leak rate is to be determined, be provided to the NRC staff before  ;

exceeding 20% of rated power of Unit 1, along with a description of the program for verifying the leakage rate on a. quarterly basis.

The purpose of this letter is to provide the leak detection program committed to in reference (a). The attached Braidwood procedure BWP 200-1077, Revision 0, provides the method of leak testing potentially radioactive systems outside of containment and obtaining an accumulated total leakage. Leak testing is to be performed prior to exceeding 20% power and on a quarterly basis, therafter, during the ASME pump inservice testing surveillances.

As noted in the procedure, the total ECCS leakage shall be compared to Figure 1 included here and in reference (a). In the event the total leakage is greater than the leakage value for a given power level, the Shift Engineer shall be notified immediately. The Shift Engineer shall reduce the leakage to an acceptable value or reduce power in accordance with Figure 1, within six (6) hours.  !

8706220173 870611 00 PDR ADOCK 05000456 [g P PDR

l Thom1s E. Murley June 11, 1987 i

This program is essentially identical to the program established for Byron Station. When the VA system becomes operable, the ECCS leakage j monitoring will no longer be required.

Should you have any questions, please contact his office.

Very truly yours,

.3 . C. Hunsader Nuclear Licensing Administrator  ;

cc: J. Stevens W. Little - RIII Resident Inspector - Braidwood 9

3197K l