ML20154H541
| ML20154H541 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 09/15/1988 |
| From: | Swenson W Office of Nuclear Reactor Regulation |
| To: | Fay C WISCONSIN ELECTRIC POWER CO. |
| References | |
| TAC-63152, TAC-63153, NUDOCS 8809220044 | |
| Download: ML20154H541 (2) | |
Text
W.y
~
I' September 15, 1988 Docket Nos.
50-266 DISTRIRUTIONI dnd 50-?
, Gocket m e. '.
PKreutzer NRC & Local PRDs OGC-Rockville PD3 r/f E. Jordan DCrutchfield BGrimes GHolahan ACRS(10) 1r. C. W. Fay, Vice President PD3 Gray File WSwenson eclear Power Department LShao JRichardson isconsin Electric Power Company GHolahan GBagchi
?31 W. Michigan Street, Room 308 Milwaukee, Wisconsin 53201
Dear Mr. Fay:
SUBJECT:
CONTAINMENT LEAK CHASE CHANNELS (TAC'S 63152 AND 63153)
We have reviewed the information you have submitted to date regarding the con-tainment leak chase channels at Point Beach 1 and 2.
The NRC position on this mtter is that containment liner weld channels should be vented to the contain-ment atmosphere during the integrated leak rate test (ILRT) to permit the detection of potential leak paths in the primary containment liner welds.
iiowever, if you can demonstrate that channels would maintain their integrity whan subjected to the loading conditions of a postulated design basis accident as well as during normal operation and that the desfgn for the new pressure boundary of the containment would compare favorably with the ASME Boiler and Pressure Vessel (B&PV) Code,Section III, Division 1 Subsection MC requirements, the channels need not be vented.
Based on the review of the information submitted to date, we find that there is not sufficient data to demonstrate that the leak chase channel system can be qualified as an integral part of the containment liner plate.
In order to redefine the pressure boundary of the containment, we suggest that you compare the ASME B&PV Code,Section III, Division 1, Subsection MC requirements, item by item, with what has been done in the program. We will accept the request not to vent the leak chase channels to perform the ILRT when all comparisons are favorably and satisfactorily made.
Sincerely h/
War e i H. Swenson, Project Manager Pro:' ct Directorate III-3 Division of Reactor Projects - III, IV, V and Special Projects cc: See next page bt Office:
LA/PDIJI-3 M/PDIII-3 ESGB" SG PD/PD Surname:
PKreut'rer WSwenson/tg SChan GBagchi KPerk. j Date:
'T / p /88 9/g/88
<j/p/88 C)/y88 ([/G8-8 OPi 8809220044 000919,.
TbR Pib0t% %000 %
tl P
P l
I I
Mr. C. W. Fay Point Beach Nuclect Plant Wisconsin Electric Power Company Units 1 and 2 cc:
Mr. Bruce Churchill, Esq.
Shaw, Pittman, Potts and Trowbridge 2300 N Street, N.W.
Washington, DC 20037 Mr. James J. Zach, Manager Point Beach Nuclear Plant Wisconsin Electric Power Company 6610 Nuclear Road Two Rivers, Wisconsin 54241 Town Chairman Town of Two Creeks Route 3 Two Rivers, Wisconsin 54241 Chairman Public Service Comission of Wisconsin Hills Fanns State Office Building Madison, Wisconsin 53702 Regional Administrator, Region III U.S. Nuclear Regulatory Comission Offf te of Executive Director for Operations 799 Roosevelt Road Glen Ellyn, Illinois 60137 Resident Inspector's Office U.S. Nuclear Regulatory Comission 6612 Nuclear Road Two Rivers, Wisconsin 54241
_ _ _ _ _ _ _ -