ML20052D507
| ML20052D507 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 04/21/1982 |
| From: | Miraglia F Office of Nuclear Reactor Regulation |
| To: | Tallman W PUBLIC SERVICE CO. OF NEW HAMPSHIRE |
| References | |
| NUDOCS 8205060520 | |
| Download: ML20052D507 (4) | |
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APR 211982 e
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RECEIVED
_3 W1111am C. Tallman C
APR 2719825 Chaiman and Chief Executive Officer 6-u rzua mum emmes 4
Public Service Company of New Hampshire
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P. O. Box 330 g
Manchester, New Hampshire 03105 8
Dear Mr. Tallman:
During a recent meeting at United Engineers & Constructors, Inc. between your representatives and the NRC Instrumentation and Control Systems Branch, the staff position on' remote shutdown capability was discussed.
Your representatives requested that the NRC fomally provide the subject position in order to better understand staff interests and to aid in further design considerations ~. Enclosed is the ICSB position. The Seabrook Project Manager (Mr. Louis Wheeler, (301) 492-7792) is available to provide additional information if it is necessary, or to arrange meetings if you believe they would be helpful to the OL review now in progress.
Sincerely, Original signed by Frank J. Miraglia Frank J. Miraglia, Chief
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Licensing Branch No. 3 Division of Licensing
Enclosure:
As stated cc: See next page.
DISTRIBUTION:
Docunent Control 50-443/444 LPDR PDR ACRS (16)
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a SEABROOK William C. Tallman Chairman and Chief Executive Officer Public Service Company of New Hampshire P. O. Box 330 Manchester New Hampshire 03105 John A. Ritscher. Esq.
E. Tupper Kinder. Esq.
Ropes and Gray Assistant Attorney General 225 Franklin Street Office of Attorney General Boston, Massachusetts 02110 206 State House Annex Concord. New Hampshire 03301 Mr. Bruce B. Beckley. Project Manager Public Service Company of New Hampshire The Honorable Arnold Wight P. O. Box 330 New Hampshire House of Representatives Manchester. New Hampshire 03105 Science Technology ana Energy Committee State House G. Sanborn Concord, New Hampshire 03301 U. S. NRC - Region I 631 Park Avenue Resident inspector King of Prussia. Pennsylvania 19406 Seabrook Nuclear Power Station c/o U. S. Nuclear Regulatory Commission Ms. Elizabeth H. Weinhold P. O. Box 700 3 Godfrey Avenue Seabrook, New Hampshire 03874,
Hampton, New Hampshire 03842 Mr. John DeVincentis, Project Manager Robert A. Backus Esq.
Yankee Atomic Electric Company O'Neill, Backus and Spielman 1671 Worcester Road 116 Lowell Street Farmingnam, Massachusetts 01701 Manchester, New Hampshire 03105 Mr. A. M. Ebner, Project Manager Norman Ross. Esq.
United Engineers and Constructors 30 Francis Street 30 South 17th Street Brookline. Massacnusetts 02146 Post Office Box 8223 Philadelphia, Pennsylvania 19101 Karin P. Sheldon, Esq.
Sheldon. Harmon & Weiss Mr. W. Wright, Project Manager 1725 I Street. N. W.
Westinghouse Electric Corporation Washington. D. C.
20006 Post Office Box 355 Pittsburg, Pennsylvania 15230 Laurie Burt. Esq.
Office of the Assistant Attorney General Thomas Dignan, Esq.
Environmental Protection Division Ropes and Gray One Ashburton Place 225 Franklin Street Boston. Massachusetts 02108 Boston, Massachusetts 02110 D. Pierre G. Cameron, Jr., Esq.
General Counsel l
Public Service Company of New Hampshire l
P. O. Box 330 Manchester, New Hampshire 03105 l
To P.eet LUC-lf %s ir terpreteo in nr 5cction /.41 ENCLOSURE 1)
The. design should provide redundant sa fety grade capability 'to achieve and
- raintain het shutdown from a location or locations, renote frcm the control room, eisuming no fire damage to'any required sy' stems and equipnunt and assuming no accident has occurred.
Credit may be taken for ranual actuation (exclusive of continuous control) of systems from locations that are reasonably accessible from the Recote Shutdo,en Panel.
Credit tray not be taken for ranual actions involving, jumpering, rdwiring or disconnecting circuits.
4 2)
The design should provide redundant safety grade capability for attaining l
subsequent cold. shutdown through the use of suitable procedures.
To Meet Appendix X (ECCS Requirenent_s.)
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- 3), The design should be -:,uch that the manual transfer of control to the renote location (s) should not disable any autoratic actuation of ESF functions while the plant is attaining or traintained in hot shutdown, other than where EST features are.aanually placed in service to achieve or raintain hot shutdown.
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It is permissible to disable automatic LPCI actuation in this ranner only' when necessary in order to enabl.e control of the RHR system from the renote locatbon j
end while operating inis system to effect cold shutdown from hot shutdaynk To Meet Appendix R (Fire Protection Requirnents)-
4)
The design should provide, as a minimum, non-redundant non-safety grade systems necessary to achieve and traintain hot shutdown from either the control room or from a rerote location (s) assuming a postulated fire in any fire area, including
-the control room or the Recote Shutdown Panel.
Credit rray be taken for manual
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actuation (exclusive of continuous control) of systens fmm locations that are reasonably accessible from the control room or the Renote Shutdown Panel, as l
l applicable.
Credit may not be tale,n for ranual actions involving jumpering,.
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rewiring'or disconnecting circuits.
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r:ecessary tiachieve and raintain cold shutdo,<n from either the control room or
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from a renote location (s).. The design should be such that in the event of fire i
darrage in any ' fire area, systems could be repaired or nade operable within 72 i
i hours if reqvfred'for cold' shutdown.
For further guidance, see 30 CFR Part 50, Appendix R.
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