ML19249F292
| ML19249F292 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 09/14/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Clayton F ALABAMA POWER CO. |
| References | |
| NUDOCS 7910110226 | |
| Download: ML19249F292 (1) | |
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UNITED STATES 8
NUCLEAR REGULATORY COMMISSION o
a REGION 11 g
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101 MARIETTA ST N.W., SUITE 3100 o
'o ATLANTA, GEORGIA 30303 In Reply Re'er To:
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w Alabama Power Company ATTN:
F. L. Clayton, Jr.
Senior Vice Prcsident Post Office Box 2641 Birmingham, Alabama 35291 Gentlemen:
The enclosed Information Notice provides information with regard to a potential unreviewed safety question involving high energy lines and control systems.
Sincerely, 5
Ja s P. O'Rei y Director
Enclosures:
- 2. List of IE Information Notices Issued in the Last Six Months
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e Alabama Power Company cc w/ enc 1:
A. R. Barton Executive Vice President Post Office Box 2641 Birmingham, Alabama 35291 J. T. Young vice President-Production Post Office Box 2641 Bimingham, Alabama 35291 H. O. Thrash Manager-Nuclear Generation
- Post Office Box 2641 Birmingham, Alabama 35291 C. Biddinger, Jr.
Manager-Corporate Ouality Assurance Post Office Box 2641 Birmingham, Alabama 35291 W. G. Hairston, III Plant Manager Drawer 470 Shaford, Alabama 36312 R. E. Hollands, Jr.
QA Supervisor Post Office Box U Ashford, Alabama 36312
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1077 308 9
'2 Accession No: 79082201tf SSINS:
6870 UNITED STATES
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OFFICE OF INSPECTION AND ENFORCEMENT d
b WASHINGTON, D.C.
20555 September 14, 1979 IE Information Notice No. 79-22 QUALIFICATION OF CONTROL SYSTEMS Public Service Electric and Gas Company notified the NRC of a potential unreviewed safety question at their Salem Unit I facility. This notification was based on a continuing review by Westinghouse of the environmental qualifications of equipment that they supply for nuclear steam supply systems. Based on the present status of this effort, Westinghouse has infomed their customers that the performance of non-safety grade equipment subjected to an adverse environment could impact the protective functions performed by safety grade equipment. These non-safety grade systems include:
Steam generator power operated relief valve cratro a.ys tem Pressurizer power operated relief valve cout ol system Main feedwater control system Automatic rod control system These systems could potentially malfunction ace t; a high energy line break inside or outside of containment. NRC is also concerned that the adverse environment could also give erroneous infor. nation to the plant operators.
Westinghouse states that the consequences of nch an event could possibly be more limiting than results presented in Safety Analysis Reports, however, Westinghouse also states that the severity of the results can be limited by operator actions together with operating characterisitics of the safety systems. Further, Westinghouse has recommended to their customers that they review their systems to determine whether any unreviewed safety questions exist.
This Information Notice is provided as an early notification of a possibly significant matter. It is expected that recipients will review the information for possible applicability to their facilities. No specific action or response is requested at this time. If NRC evaluations so indicate, further licensee actions may be requested or required.
If you have questions regarding this matter, please contact the Director of the appropriate NRC Regional Office.
No written response to this Information Notice is required.
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