ML20107M974
| ML20107M974 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 10/22/1984 |
| From: | Kemper J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Martin T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-79-07, IEB-79-7, NUDOCS 8411140362 | |
| Download: ML20107M974 (4) | |
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PHILADELPHIA ELECTRIC COMPANY 2301 M ARKET STREET P.O. BOX 8699 PHILADELPHI A. PA.19101 JOHN S. KEMPER v ec E-PR Ess D E NT OCT 2 21984 E................
Mr. Thmas T. Martin, Director, Region I United States Nuclear Regulatory Cm mission 631 Park Avenue King of Prussia, PA 19406
Subject:
NRC Region I Letter dated April 14, 1979 Re:
I.E. Bulletin No. 79-07 Seismic Stress Analysis of Safety-Related Piping Limerick Generating Station - Units 1 and 2 Docket Nos. 50-352 and 50-353 File:
GOiT l-1 (I.E.Bulletin 79-07)
Dear Mr. Martin:
In a May 25, 1979 Philadelphia Electric Co. letter to Mr. Boyce M. Grier we presented our partial response to I.E.Bulletin 79-07 for the Limerick Generating Station - Units 1 anf. 2.
This letter will cmplete our response to the I.E. Bulletin.
As in the original letter, our responses are numbered to correspond to the its nutThering in the Bulletin.
1.
None of the cmputer codes used for the seismic stress analysis of the Nuclear Steam Supply System (NSSS) piping, the Diesel Generator piping or the Recmbiner Skid piping enplay the algebraic sumation techniques as identified in item one (1) of the I.E. Bulletin.
2.
Based on the above response to it s 1, no response is required for its 2 of the I.E. Bulletin.
3.
Caputer program verification for the piping systems identified in 1 (above):
a.
Programs used by the General Electric Company for the seismic stress analysis of the NSSS piping:
A O
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(1) SAP 4G (F. ' A. Peterson and K. J. Bathe of the Engineering and Analysis Corporation at Berkeley) -
Verified with ANSYS.
(2) PISYS (a specialized piping analysis program) -
Verified by analysis of the five (5) NRC piping benchmark problens which were subnitted to the NBC in GE generic report #NEDO-24210 (PISYS Analysis of NRC Benchmark Problems) dated August,1979.
NBC approval of the generic report was given in October, 1979.
b.
Programs used by Colt Industries for the seismic stress analysis of the Diesel Generator piping:
(1)- DAGS (Structural Dynamics Mreair.h Corporation) -
Verified with SAP and ANSYS.
(2) DAGSMIC (SDBC) - Verified with ANSYS.
c.
Programs used by the Atanic International Division of Rockwell International for the seismic analysis of the Recmbiner Skid piping:
(1) SAPV (F. A. Peterson and K. J. Bathe) - Verified with ADLPIPE and PIPEDYN.
4.
. Based on the above response to item 1, no response is required for item 4 of the I.E. Bulletin.
If you should have any questions on the aime please contact this office.
- Sinmrely, p
A3T/pd10058411 s
g,
.cc: ' Judge Helen F. Hoyt Judge derry Harbour Judge Richard F. Cole Judge Christine N. Kohl Judge Gary J. Edles Judge Reginald L. Cotchy Troy B. Conner, Jr., Esq.
Ann P. Hodgdon, Esq.
Mr. Frank R. Romano Mr. Robert L. Anthony Ms. Phyllis Zitzer Charles W. Elliot, Esq.
Zori G. Ferkin, Esq.
Mr. Thomas Gerusky Director, Penna. Emergency Management Agency Angus R. Love, Esq.
David Wersan, Esq.
Robert J. Sugarman, Esq.
Martha W. Bush, Esq.
Spence W. Perry, Esq.
day M. Gutierrez, Esq.
Atomic Safety & Licensing Appeal Board Atomic Safety & Licensing Board Panel Docket & Service Section Mr. James Wiggins Mr. Timothy R. S. Campbell
.