ML20023E231
| ML20023E231 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 05/13/1983 |
| From: | Wilcove M NRC OFFICE OF THE EXECUTIVE LEGAL DIRECTOR (OELD) |
| To: | Bernabei L GOVERNMENT ACCOUNTABILITY PROJECT |
| References | |
| ISSUANCES-OL, ISSUANCES-OM, NUDOCS 8306150220 | |
| Download: ML20023E231 (4) | |
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l May 13, 1983 Lynne Bernabei Government Accountbility Project Institute for Policy Studies 1901 Que Street, N.W.
Washington, D.C.
20009 In the Matter of CONSUMERS POWER COMPANY (Midland Plant, Units 1 and 2)
Docket Nos. 50-329 OM & OL and 50-330 OM & OL
Dear Ms. Bernabei:
On January 21, 1983, the Power Systems Branch, Division of Systems Integration, of the Office of Nuclear Reactor Regulation (NRR) submitted the enclosed memorandum to Elinor Adensam.
It is in response to Region III's request for NRR's position on the exception to Reg. Guide 1.29, C.4 taken by the Applicant in Appendix 3A to the FSAR.
However as was stated during the hearings held from April 27 to May 6,1983, NRR has not yet developed a position on the matter.
Sincerely, Michael N. Wilcove Counsel for NRC Staff
Enclosure:
As stated cc w/ enclosure: See page 2 9306150220 830513 PDRADOCK05000g 9
.er
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e, 41 9 cc w/ enclosure:
Charles Bechhoefer, Esq.
Dr. Jerry Harbour Dr. Frederick P. Cowan Frank J. Kelley Steward H. Freeman Ms. Mary Sinclair Michael I. Miller, Esq.
Ronald G. Zamarin, Esq.
Alan S. Farnell, Esq.
James E. Brunner, Esq.
Ms. Barbara Stamiris James R. Kates Wendell H. Marshall Wayne Hearn Paul C. Rau Myron M. Cherry Peter Flynn T. J. Creswell-Frederick C. Williams Steve J. Gadler Atomic Safety & Licensing Appeal Panel Atomic Safety & Licensing Board Docketing & Service Section Distribution:
NRC Docket LPDR PDR Murray Christenbury/Scinto Lieberman Rutberg Vogler Chandler Paton Wright Wilcove E.Adensam D. Hood D. Fisher J.Sniezek J. Stone Chron FF DESIG?iATED ORIGINAL.
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MEMORANDUM FOR:
LicensingTra'iich No. 4, DL FEB 0 71963 FROM:
M. Srinivasan, Chief Power Systems Branch, DSI
SUBJECT:
MIDLAND - EMERGENCY DIESEL GENERATOR EXHAUST SYSTEM HANGERS
REFERENCE:
(1) Memorandum, R. F. Warnick (Region III) to T. Novak, dated October 29, 1982 (2) Midland FSAR - Appendix 3A The emergency diesel generator exhaust system hangers which are the subject of the referenced memorandum (Ref.1) do not fall within the review responsibility of the Power Systems Branch (PSB). However, to assist DL in resolving this issue for Midland, we offer the following:
1.
The emergency diesel generators exhaust system components at Midland, (i.e., piping, fittings and silencer), are safety related for each emergency diesel generator.
Postulated failure of this system would result in loss of the diesel generator.
2.
The emergency diesel generator exhaust system piping at Midland is designed and inspected in accordance with ANSI B31.1 requirements.
While this piping system des-ign does not conform to current criteria, i.e., ASME Section III, Class 3, we have concluded that the system as designed is functionally equivalent to a system designed to ASME Section III, Class 3 and is acceptable as stated in Section 9.5.8 of the SER.
3.
The PSB acceptance of the emergency diesel generator exhaust systems (as described in 2) above, extends only to the systems pressure boundary. This acceptance did not, include the hangers supporting these systems for reason stated in the first paragraph above.
4 It is PSB's view that the hangers for the above exhaust systems should be designed and inspected to criteria commensurate with the function of the system they support, i.e., to Seismic Category 1 requirements.
Therefore, we suggest that the Mechanical Engineering Branch review the adequacy of the hangers installed on the diesel generator exhaust systems at Midland for seismic requirements.
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'3 Elinor G. Adensam ~
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Based on the above, it is our conclusion that the Applicant's exceptionsto Regulatory Guide 1.29 (positions C.2 and C.4 in Ref. (2)) are not appropriate to the diesel engine exhaust systems at Midland.
If you have any questions regarding the above, please contact E. Tomlinson on x29486.
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M. Srinivasan, Chief Power Systems Branch Division of Systems Integration cc:
L. Rubenstein R. Bosnak A. Ungaro J. E. Knight R. Kirkwood D. Hood E. Tomlinson L
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