ML20235U955
| ML20235U955 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 03/02/1989 |
| From: | Wang A Office of Nuclear Reactor Regulation |
| To: | Mroczka E CONNECTICUT YANKEE ATOMIC POWER CO. |
| References | |
| TAC-62290, NUDOCS 8903090445 | |
| Download: ML20235U955 (3) | |
Text
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Harch 2, 1989 i.
Docke.t flo. 50-213 DISTRIBUTION E Docket file:
OGC Mr. Edward J. Mroczka, Senior Vice President NRC & Local PDRs EJordan Nuclear Engineering and Operations Plant File BGrimes Connecticut Yankee Atomic Power Company Glainas ACRS(10)
P. O. Box 270 BBoger Hartford, Connecticut 06141-0270 SNorris GGarten
Dear Mr. Mroczka:
AWang
SUBJECT:
HADDAM NECK PLANT - REQUEST FOR ADDITIONAL INFORMATION REGARDING CONFORMANCE WITH ANTICIPATED TRANSIENTS WITHOUT SCRAM FOR THE AUXILIARY FEEDWATER SYSTEM (TAC NO. 62290)
On October 26, 1988 Connecticut Yankee Atomic Power Company (CYAPCO) provided the NRC with additional information on how the Auxiliary Feedwater System (AFWS) met 10 CFR 50.62(c) and how the AFWS compared with the criteria of the Westinghouse Generic (Amsac) package described in WCAP-10858P-A, Rev.1, Section 2-3.
Based on the information provided by CYAPC0 at that time, the NRC has determined that additional information is needed to complete our review. Enclosed are our additional questions.
Please respond within 60 days of the receipt of this letter.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than-ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely, O
Alan B. Wang, Project Manager Project Directorate I-4 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation
Enclosure:
As stated cc w/ enclosure See next page
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Mr.' Edward J. Mroczka Connecticut Yankee Atomic Power Company Haddam Neck Plant cc:
Gerald Garfield, Esquire R. M. Kacich, Manager Day, Berry and Howard Generation Facilities Licensing Counselors at Law Northeast Utilities Service Company City Place Post Office Box 270 Hartford, Connecticut 06103-3499 Hartford, Connecticut 06141-0270 W. D. Romberg, Vice President D. O. Nordquist j
Nuclear Operations Director of Quality Services Northeast Utilities Service Company Northeast Nuclear Energy Company Post Office Box 270 Post Office Box 270 Hartford, Connecticut 06141-0270 Hartford, Connecticut 06141-0270 Kevin McCarthy, Director Regional Administrator Radiation Control Unit Region I Department of Environmental Protection U. S. Nuclear Regulatory Commission State Office Building 475 Allendale Road l
Hartford, Connecticut 06106 King of Prussia, Pennsylvania 19406 Bradford S. Chase, Under Secretary Board of Selectmen Energy Division Town Hall Office of Policy and Management Haddam, Connecticut 06103 80 Washington Street i
Hartford, Connecticut 06106 J. T. Shedlosky, Resident Inspector Haddam Neck Plant D. B. Miller, Station Superintendent c/o U. S. Nuclear Regulatory Commission Haddam Neck Plant Post Office Box 116 Connecticut Yankee Atomic Power Company East Haddam Post Office RFD 1, Post Office Box 127E East Haddam, Connecticut 06423 East Hampton, Connecticut 06424 G. H. Bouchard, Unit Superintendent Haddam Neck Plant RFD #1 Post Office Box 127E East Hampton, Connecticut 06424 i
._____.m.
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i HADDAM NECK - ATWS REQUEST FOR ADDITIONAL INFORMATION 1.
Provide block diagrams showing the components of the AFW actuation circuit and the RpS actuation circuit and the diversity that exists between them. The block diagrams should show the bistables, bistable relays, matrix relays, initiation relays / devices, actuation devices, and the power supplies.
2.
List the safety-related interfaces affecting the AFWAS and state how they are being protected.. Discuss electrical isolators.
3.
In addition to the eight SG WR pressure transmitters being environmentally qualified, is the AFWAS qualified for anticipated operational occurances.
4.
Is the AFWAS covered by the Technical Specifications.
.If not, what documents govern the testing, maintenance, surveillance, and operation of the AFWAS. Discuss GL 85-06.
5.
How does the AFWAS complete its mitigative action once it is started.
I W
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