ML19309H232
| ML19309H232 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 04/10/1980 |
| From: | Rubenstein L Office of Nuclear Reactor Regulation |
| To: | Howell S CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| NUDOCS 8005090387 | |
| Download: ML19309H232 (4) | |
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UNITED STATES
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800509udF7 I 'y ;.- q 'i NUCLEAR REGULATORY COMMISSION Jt C
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APR 10135ij 1
i Docket tios.:
50-329/330
.i Mr. S. H. Howell l
Vice President Consumers Power Company 212 West Michigan Avenue
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Jackson, Michigan 49201
Dear kr. Howell:
SUBJECT:
REQUEST FOR It;FORMATI0tl FOR STAFF'S It:DEPEf;DEilT C0t4FIRMATORY PIPItG At1ALYSIS Ot1 MIDLATID PLANT 1 ATID 2 As indicated in my letter of February 29, 1980, our support from Energy Technology Engineering Center (ETEC) calls for an independent confirmatory piping analysis on Midland Plant, Units 1 and 2.
The purpose of this inde-pendent analysis is to provide further verification that the Midland piping systems meet applicable ASME Code stress criteria, that your analyses have correctly modeled the Midland piping, that you have correctly used computer codes and have adequately accounted for the piping;s as-built condition.
We have selected the Decay Heat Removal and Core Flooding System of Unit 1 as the basis for this audit analysis. As shown on Figure 3.6-8 of FSAR Revision 16, the area of interest is from penetrations 12-26 and lZ-27 and the Core Flooding Tanks (IT-63A and B), to the Reactor Pressure Vessel.
In order to analyze this area, the following additional information is needed:
1.
Piping layout and isometric drawings in sufficient detail to model the system.
2.
Support drawings with support and hanger spring rates.
3.
Piping design specification (s).
4.
Valve weights and centers-of-gravity.
l 5.
Appropriate seismic response spectra.
6.
Appropriate anchor point movements.
1
Mr. S. H. Howe'll APR 10 GEO 7.
Any design change notices (or similar documents with the effects thereof) not yet incorporated into the piping or support drawings pro-vided, including any future notices occuring during the course of this audit analysis.
For those cases in which you feel that sufficiently detailed information already exists on the Midland docket, a suitable reference may be made.
Upon receipt of the above information, ETEC will first examine it to determine if still further information or clarifications are needed. We plan at that time to schedule a site visit to further acquaint ETEC personnel with plant installation and specifically with the piping system selected for this audit, to further discuss the piping analysis with your design engineers, and to obtain additional information as may be needed. As the ETEC analysis then proceeds, we will also request, for comparative purposes, that you pro-vide certain of your analytical results, such as the design reports required by the ASME Code.
Please send three complete sets of the above information to us, plus one additional complete set directly to:
Mr. L. J. Auge, Manager Facility Design Engineering Energy Technology Engineering C';nter P. O. Box 1449 Canoga Park, California 91304 Contact us or ETEC if you have questions regarding this request. Your prompt att;ction to this matter is appreciated.
Sincerely, E
uba L. S. Ru'enstein, Acting Chief b
Light Water Reactors, Branch No. 4 Division of Project Management cc: See next page
Censumers P,ower Corrany ccs:
Michael 1. Miller, Esq.
Isham, Lincoln & Beale Suite 4200 One First National Plaza Chicago, Illinois 60603 Judd L. Bacon, Esq.
Managing Attorney consumers Pcwer Company 212 West Michigan Avenue Jackson, Michigan 49201 Mr. Paul A. Perry Secretary Consumers Power Company 212 W. Michigan Avenue Jackson, Michigan 49201 Myron M. Cherry, Esq.
One IBM Plaza Chicago, Illinois 60611 Mary Sinclair 5711 Summer set Drive Midland, Michigan 48640 Frank J. Kelley, Esq.
Attorney General State of Michigan Environmental Protection Division 720 Law Building Lansing, Michigan 48913 Mr. Wendell Marshall Route 10 Midland, Michigan 48640 Grant J. Merritt, Esq.
Thompson, Nielsen, Klaverkamp & James 4444 IDS Center 80 South Eighth Street Minneapolis, Minnesota 55402 Pr. Don van Far owe, Chief Division of Radiological Health Department 'of Public Health P. 0. Box 33035 Lansing, Michigan 48909
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Consumers Pcwer Cor rany ccs (centinued):
Resident Inspector / Midland NPS c/o U.S. Nuclear Regulatory Commission P. O. Box 1927 Midland, Michigan 48640 William J. Scanlon, Esq.
2034 Pauline Boulevard Ann Arbor, Michigan 48103 Commander, flaval Sur f ace Weapons Center ATTN:
P. C. Huang G-402 White Oak Silver Spring, Maryland 20910 3
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Mr. L. J. Auge, Manager i
Facility Design Engineering Ener gy Technology Engineer ing Center P. O. Box 1449 Canoga Park, California 91304 Mr. William Lawhead l
U. S. Corps of Engineers NCEED - T 477 Michigan Avenue 4'
7th Floor j
Detroit, Michigan 48226 i
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