ML20237G318
| ML20237G318 | |
| Person / Time | |
|---|---|
| Site: | Washington Public Power Supply System |
| Issue date: | 08/26/1987 |
| From: | Rubenstein L Office of Nuclear Reactor Regulation |
| To: | Mazur D WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| References | |
| GL-87-11, NUDOCS 8709020198 | |
| Download: ML20237G318 (3) | |
Text
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Docket No. STN 50-460 August 26, 1987 Mr. D. W. Mazur, Managing Director Washington Public Power Supply System 3000 George Washington Way Post Office Box 968 Richland, Washington 99352 l
Dear Mr. Mazur:
SUBJECT:
REQUEST FOR ELIMINATION OF ARBITRARY INTERMEDIATE PIPE BREAKS AT 4
WNP-1 By letter dated October 10, 1985, you requested permission to eliminate the postulation of arbitrary intermediate pipe breaks from the design basis for WashingtonNuclearProject1(WNP-1).
On June 19, 1987, Generic Letter (GL) 87-11, " Relaxation of Arbitrary Intermediate Pipe Rupture Rupture Requirements," was issued to the industry, including construction permit holders. This letter dealt with the relaxation of pipe rupture requirements by specifying the elimination of arbitrary I
intermediate breaks in safety related piping, and the elimination of the associated dynamic and environmental effects, from the design bases for safety related structures, equipment and components. The elimination of these breaks is reflected in Revision 2 of SRP 3.6.2-BTP MEB 3-1, dated June 1987, which was attached to the GL.
Under the stipulation of GL 87-11, requests for the elimination of the i
arbitrary intermediate breaks do not require prior NRC approval unless the i
change involves a conflict with the license or technical specifications, l
Since the KNP-1 proposed changes do not conflict, the request for the elimination of these breaks is automatically granted.
Sincerely, Original signed by Lester S. Rubenstein, Director l
Standardization and Non-Power j
Reactor Project Directorate j
Division of Reactor Projects III, IV, e70902019BBh826oo460 V and Special Projects ADOG o ppR Office of Nuclear Reactor Regulation l
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August 26, 1987
...o Docket No. STN 50-460 Mr. D. W. Mazur Managing Director j
Washington Public Power Supply System l
3000 George Washington Way l
Post Office Box 968 l
Richland, Washington 99352
Dear Mr. Mazur:
SUBJECT:
REQUEST FOR ELIMINATION OF ARBITRARY INTERMEDIATE PIPE BREAKS AT WNP-1 By'1etter dated October 10, 1985, you requested permission to eliminate the postulation of arbitrary intermediate pipe breaks from the design basis for Washington Nuclear Project 1 (WNP-1).
l On June 19, 1987, Generic Letter (GL) 87-11. " Relaxation of Arbitrary l
Intermediate Pipe Rupture Rupture Requirements," was issued to the industry, j
including construction permit holders. This letter dealt with the relaxation i
of pipe rupture requirements by specifying the elimination of arbitrary intermediate breaks in safety related piping, and the elimination of the associated dynamic and environmental effects, from the design bases for safety f
related structures, equipment and components. The elimination of these breaks is reflected in Revision 2 of SRP 3.6.2-BTP MEB 3-1, dated June 1987, which
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was attached to the GL.
Under the stipulation of GL 87-11, requests for the elimination of the arbitrary intermediate breaks do not require prior NRC approval unless the change involves a conflict with the license or technical specifications.
Since the WNP-1 proposed changes do not conflict, the request for the elimination of these breaks is automatically granted.
Sincerely, sIta j
Lester S. Rubenstein Director
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Standardization and Non-Power l
Reactor Project Dir ~torate Division of Reactor Projects III, IV, V and Special Projects Office of Nuclear Reactor Regulation
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See next page i
Mr. D. W. Mazur WPPSS Nuclear Project No. 1 Washington Public Power Supply System (WNP-1) cc:
1 Mr. Charles B. Brinkman Mr. G. C. Sorensen, Manager Washington Nuclear Operations Regulatory Programs Combustion Engineering, Inc.
Washington Public Power Supply 7q10WoodmontAvenue, Suite 1310 System I
Bethesda, Maryland 20814 Post Office Box 968 Richland, Washington 99352 i
Nicholas S. Reynolds, Esq.
DeBevoise & Liberman 1200 Seventeenth Street Washington, DC 20036 i
G. E. Doupe, Esq.
Washington Public Power Supply System 3000 George Washington Way Richland, Washington 99352 j
Mr. Curtis Eschels, Chairman l
Energy Facility Site Evaluation Council l
Mail Stop PY-11 Olympia, Washington 98505 Mr. Douglas Coleman l
Washington Public Power Supply System P. O. box 1223 j
Elma, Washing!ar 98541 Mr. William Ang Region Inspector /WPPSS 3/5 U.S. Nuclear Regulatory Commission 1450 Maria Lane - Suite 210 Walnut Creek, California 94596 e
Mr. Eugene Rosolie, Director Coalition for Safe Power 408 Southwest Second Avenue 4
Portland, Oregon 97204 l
l
.