ML17159A042
| ML17159A042 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 11/05/1997 |
| From: | Poslusny C NRC (Affiliation Not Assigned) |
| To: | Byram R PENNSYLVANIA POWER & LIGHT CO. |
| Shared Package | |
| ML17159A043 | List: |
| References | |
| TAC-M90541, TAC-M90542, NUDOCS 9711170114 | |
| Download: ML17159A042 (5) | |
Text
Hr. Robert G.
Byram Senior Vice President-Nuclear Pennsylvania Power and Light Company 2 North Ninth Street Allentown, PA 18101
SUBJECT:
SINGLE FAILURE ANALYSIS OF CLASS 1E/NON CLASS 1E INTERFACE CIRCUITS IN THE GE SCOPE OF SUPPLY, SUSQUEHANNA STEAH ELECTRIC STATION, UNITS 1
AND 2 (TAC NOS.
H90541 AND H90542)
Dear Hr. Byram:
Enclosed is a staff supplemental safety evaluation (SE) of Pennsylvania Power and Light Company's subject analysis documented in various submittals from August 1995 through September 1997.
The analysis was submitted to resolve an open issue in the General Electric (GE) Nuclear Steam Supply System (NSSS) scope of supply regarding Class lE/non-.Class lE interface circuit compliance with the requirements of IEEE Standard 279-1971.
The open issue was identified in the staff's SE dated June 28, 1991.
This supplemental SE addresses regulatory and licensing requirements for circuit isolation and provides resolution of allegations raised regarding adequacy of circuit isolation at Susquehanna Units 1 and 2.
The staff has concluded that the circuits within the GE scope of supply at Susquehanna Units 1 and 2 meet the applicable requirements of IEEE Standard 279-1971 and the design is, therefore, acceptable.
This supplemental SE closes the June 28, 1991 safety evaluation open item.
Docket Nos.
50-387 and 50-388
Enclosure:
Safety Evaluation Sincerely,
/s/
Chester
- Poslusny, Senior Project Hanager Project Directorate I-2 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation cc w/encl:
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Hr. Robert G.
Byram Senior Vice President-Nuclear Pennsylvania Power and Light Company 2 North Ninth Street Allentown, PA 18101 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20M&4001 November 5,
1997
SUBJECT:
SINGLE FAILURE ANALYSIS OF CLASS 1E/NON CLASS 1E INTERFACE CIRCUITS IN THE GE SCOPE OF SUPPLY, SUSQUEHANNA STEAN ELECTRIC STATION, UNITS 1
AND 2 (TAC NOS.
H90541 AND H90542)
Dear Hr. Byram:
The staff has concluded that the circuits within the GE scope of supply at Susquehanna Units 1 and 2.meet the applicable requirements of IEEE Standard 279-1971 and the design is, therefore, acceptable.
This supplemental SE closes the June 28, 1991 safety evaluation open item.
Sincerely, Q'.~ 4 Chester
- Poslusny, enior Project Hanager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos.
50-387 and 50-388
Enclosure:
Safety Evaluation cc w/encl:
See next page Enclosed is a staff supplemental safety evaluation (SE) of Pennsylvania Power and Light Company's subject analysis documented in various submittals from August 1995 through September 1997.
The analysis was.submitted to resolve an open issue in the General Electric (GE) Nuclear Steam Supply System (NSSS) scope of supply regarding Class lE/non-Class lE interface circuit compliance with the requirements of IEEE Standard 279-1971.
The open issue was identified in the staff's SE dated June 28, 1991.
This supplemental SE addresses regulatory and licensing requirements for circuit isolation and provides resolution of allegations raised regarding adequacy of circuit isolation at Susquehanna Units 1 and 2.
I
Mr. Robert G.
Byram Pennsylvania Power
& Light Company Susquehanna Steam Electric Station, Units 1
& 2 CC:
Jay Silberg, Esq.
- Shaw, Pittman, Potts
& Trowbridge 2300 N Street N.W.
Washington, D.C.
20037 Bryan A. Snapp, Esq.
Assistant Corporate Counsel Pennsylvania Power
& Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Licensing Group Supervisor Pennsylvania Power
& Light Company 2 North Ninth Street Allentown, Pennsylvania l8101 Senior Resident Inspector U. S. Nuclear Regulatory Commission P.O.
Box 35 Berwick, Pennsylvania 18603-0035 Director-Bureau of Radiation Protection Pennsylvania Department of Environmental Resources, P. 0.
Box 8469 Harrisburg, Pennsylvania 17105-8469 Mr. Jesse C. Tilton, III Allegheny Elec. Cooperative, Inc.
212 Locust Street P.O.
Box 1266 Harrisburg, Pennsylvania 17108-1266 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 General Manager Susquehanna Steam Electric Station Pennsylvania Power and Light Company Box 467 Berwick, Pennsylvania 18603 Mr. Herbert D. Woodeshick Special Office of the President Pennsylvania Power and Light Company Rural Route 1,
Box 1797 Berwick, Pennsylvania 18603 George T. Jones Vice President-Nuclear Operations Pennsylvania Power and Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Dr. Judith Johnsrud National Energy Committee Sierra Club 433 Orlando Avenue State College, PA 16803 Chairman Board of Supervisors 738 East Third Street
- Berwick, PA 18603