ML19260D665
| ML19260D665 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 01/25/1980 |
| From: | Parr O Office of Nuclear Reactor Regulation |
| To: | Eric Turner HOUSTON LIGHTING & POWER CO. |
| References | |
| NUDOCS 8002110558 | |
| Download: ML19260D665 (3) | |
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JAN 2 51980 Docket Nos. STN 50-498 and STN 50-499 Mr. E. A. Turner Vice President Houston Lighting and Power Company P. 0. Box 1700 Houston, Texas 77001
Dear Mr. Turner:
SUBJECT:
REQUEST FOR INFORMATION CONCERNIllG CONFIRMATORY PIPING ANALYSIS FOR SOUTH TEXAS PROJECT, UNITS 1 AND 2 Our Mechanical Engineering Branch has recently instituted a program of performing an independent confirmatory "as built" piping analysis for each plant undergoing an operating license review.
For South Texas, this analysis will be performed by our contract personnel at the Argonne flational Laboratory (ANL).
The purpose of this independent analysis will be to verify that a piping systen, chosen on a sampling basis, meets the applicable ASME Code stress criteria. We do not intend to resolve small differences between our
' calculated stresses as compared to yours. Only when large discrepancies are found or Code criteria are not met do we intend to take further action.
This program will allow us to verify, on a e-pling basis, that you have correctly modeled your piping, have correctly used your computer codes and have adequately accounted for "as built" piping systems.
In order to proceed with our analysis, we will require additional detailed information to be supplied for the chosen sampling piping system.
For South Texas, the piping system choser,i, the residual heat removal system line from the reactor coolant systeni loop 3 hot leg to (a) the residual heat removal system pump (Ic) or (b) the first anchor point, wnichever comes first (see Figures 5.1-1 and 6.3-3 of the FSAR).
The additional information requested is as follows:
19 0 235 8 0 02110 55Y
Mr. E. A. Turner JAN 2 51980 (1) Piping layout and isometric drawings sufficient to model the system, (2) Support drawings wt 2upport and hanger spring rates, (3) The piping design specification, (4) Valve weights and center of gravity locations, (S) Appropriate response spectra, (6) Appropriate anchor point movements, and (7) Any design change notices not yet incorporated into the piping drawings (later design change notices should be forwarded to us).
Send the above information to:
Mr. C. K. Youngdahl Argonne National Laboratory Building 301 9700 S. Cass Avenue Argonne, Illinois 69439 Upon receipt of this information, ANL will evaluate it to determine if additional infonnation or clarification is required.
Following the initial review, we will schedule a site visit in order for the ANL pe sonnel to become acquainted with the plant and more specifically, the chosen piping system. At that time we can also discuss the piping analysis with your
' design engineers and obtain any additional information requireo. We will contact Mr. Jacobi to make arrangements for this site visit.
As our analysis proceeds, we will also require certain of your analytical results for comparative purposes, such as the ASME Code required Design Reports.
Please contact us if you desire any clarification of the information requested.
Sincerely, 0
.ParrDhief Light Water Reactors Branch No. 3 Division of Project Management cc:
See next page
Mr. E. A. Turner JAN 2 5 1980 cc:
Mr. D. G. Barker Mr. Troy C. Webb Manager, South Texas Project Assistant Attorney General Houston Lighting and Power Company Environmental Protection Div.
P. O. Box 1700 P. O. Box 12548 Houston, Texas 77001 Capitol Station Austin, Texas 78711 Mr. M. L. Borchelt Central Power and Light Company Mr. R. Gordon Gooch, Esq.
P. O. Box 2121 Baker & Botts Corpus Christi, Texas 78403 1701 Pennsylvania Avenue, N.W.
Washington, D. C.
20006 Mr. R. L. Hancock City of Austin Director, Governor's Budget Electric Utility Department and Planning Office P. O. Box 1088 Executive Office Building Austin, Texas 78767 411 W. 13th Street Austin, Texas 78701 Mr. J. B. Poston Assistant General Manager for Operations John L. Anderson City Public Service Board Oak Ridge National Laboratory P. O. Box 1771 Union Carbide Corporation San Antonio, Texas 78296 Bldg. 3500, P. O. Box X Oak Ridge, Tennessee 37830 Mr. Jack R. Newman, Esq.
Lowenstein, Newman, Axelrad & Toll Resident Inspector / South Texas NPS 1025 Connecticut Avenue, N. W.
c/o V. S. NRC Washingten, D. C.
20036 P. O. Box 910 Bay City, Texas 77414 Mr. Melbert Schwarz, Jr., Esq.
Baker & Botts One Shell Plaza Houston, Texas 77002 Mr. A. T. Parker Westinghouse Electric Corporation P. O. Box 355 Pittsburgh, Pennsylvania 15230 Mr. E. R. Schmidt NUS Corporation NUS-4 Research Place Rockville, Maryland 20850 Mr. J. R. Geurts Brown & Root, '.nc.
P. O. Box 3 Houston, Texas 77001 19/0 237