ML20206N028
| ML20206N028 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 06/25/1986 |
| From: | George Thomas PUBLIC SERVICE CO. OF NEW HAMPSHIRE |
| To: | Noonan V Office of Nuclear Reactor Regulation |
| References | |
| SBN-1144, NUDOCS 8607010354 | |
| Download: ML20206N028 (3) | |
Text
1
)
g George S. Thomas Vice President-Nuclect Produc icn a
June 25, 1986 SBN-1144 New Hampshire Yankee Division T.F. B7.1.2 United States Nuclear Regulatory Commission Washington, DC 20555 Attention:
Mr. Vincent S. Noonan, Project Director PWR Project Directorate No. 5
References:
(a) Construction Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444 (b) PSNH Letter (SBN-915), dated December 31, 1985,
" Inservice Testing (IST) of Pumps and Valves (SER Outstanding Issue No.
4", J. DeVincentis to V. S. Noonan (c) PSNH Letter (SBN-1086), dated June 4, 1986, " Inservice Testing (IST) of Pumps and Valves (SER Outstanding Issue No. 4)", G. S. Thomas to V. S. Noonan (d) PSNH Letter (SBN-1136), dated June 23, 1986, " Inservice Testing (IST) of Pumps and Valves (SER Outstanding Issue No. 4)
Subj ect :
Inservice Testing (IST) of Pumps and Valves (SER Outstanding Issue No. 4) Relief Request No. 46
Dear Sir:
As a result of a phone conversation with Mr. Clair Ransom of EG&G in Idaho, a revision has been made to the New Hampshire Yankee IST Program.
Attached is a revised copy of Relief Request No. 46, that was Enclosure K in our recent submittal [ Reference (d)}.
We trust that this additional information is acceptable and request that it be reflected in the upcoming supplement to the Seabrook SER.
Please contact Mr. James Connolly at (603) 474-9574, extension 3107, regarding any questions on this information.
Very truly yours, 8607010354 860625 PDR ADOCK 05000443 i
E PDR
//
George S. Thomas Enclosure cc: ASLB Service List 1\\
P.O. Box 300 Socbrook,NHO3874 Telephone (603)474-9521
y
.-=
- - Disna Curran, Esquire Pater J. Mathrwa, Mayor L
Harmon & Weica City Hall 2001 S. Street, N.W.
Ntwburyport, MA 01950 Suite 430 Washington, D.C.
20009 Judith H. Mizner Silvergate, Gertner, Baker, j
Sherwin E. Turk, Esq.
Fine, Good & Mizner Office of the Executive Legal Director 88 Broad Street U.S. Nuclear Regulatory Commission Boston, MA 02110 Tenth Floor Washington, DC 20555 Calvin A. Canney City Manager Robert A. Backus, Esquire City Hall 116 Lowell Street 126 Daniel Street P.O. Box 516 Portsmouth, NH 03801 l
Manchester, NH C3105 l
Stephen E. Merrill, Esquire Philip Ahrens, Esquire Attorney General Assistant Attorney General George Dana Bisbee, Esquire Department of The Attorney General Assistant Attorney General Statehouse Station #6 Office of the Attorney General Augusta, ME 04333 25 Capitol Street i
Concord, NH 03301-6397 Mrs. Sandra Gavutis Chairman, Board of Selectmen Mr. J. P. Nadeau RFD 1 - Box 1154 Selectmen's Office Kennaington, NH 03827 10 Central Road Rye, NH 03870 Carol S. Sneider, Esquire Assistant Attorney General Mr. Angie Machiros Department of the Attorney General Chairman of the Board of Selectmen One Ashburton Place, 19th Floor Town of Newbury N wbury, MA 01950 Boston, MA 02108 e
1 Senator Gordon J. Humphrey Mr. William S. Lord U.S. Senate Board of Selectmen Washington, DC 20510 Town Hall - Friend Street (ATTN: Tom Burack)
Amesbury, MA 01913 Richard A. Hampe, Esq.
Senator Gordon J. Humphrey Hampe and McNicholas 1 Pillsbury Street 35 Pleasant Street Concord, NH 03301 Concord, NH 03301 (ATTN: Herb Boynton)
Thomas F. Powers, III H. Joseph Flynn, Esquire Town Manager Office of General Counsel Town of Exeter Federal Emergency Management Agency 10 Front Street 500 C Street, SW l
Exeter, NH 03833 Washington, DC 20472 r
Brentwood Board of Selectmen Paul McEachern, Esquire RFD Dalton Road Matthew T. Brock, Esquire l
Brentwood, NH 03833 Shaines & McEachern 25 Maplewood Avenue Gary W. Holmes, Esq.
P.O. Box 360 Holmes & Ells Portsmouth, NH 03801 47 Winnacunnet Road Hampton, NH 03842 Robert Carrigg Town Office Mr. Ed Thomas Atlantic Avenue l
FEMA Region I North Hampton, NH 03862 442 John W. McCormack PO & Courthouse Boston, MA 02109
ENCLOSURE TO SBN-1144 Relief Request:
V-46 l
I Valves:
RH-V21 and RH-V22 i
Category:
B 4
Code Class:
2 Function:
(Active) Residual Heat Removal System Crossover Valves i
Test Requirements:
IWV-3410 (3 months) n Basis for Relief:
Exercising these valves during power operations is imprac-tical. Closing either valve would render the RHR system inoperable by isolating two of the four cold leg injection j
paths to the reactor coolant system from each RHR pump assuming that there is a loss of an emergency diesel disabling a RHR pump associated with the initiating event of a loss of off-site power.
Seabrook Station Technical Specifications (3.5.2) require that there be at least one operable RHR pump for emergency core cooling during opera-I tional modes 1, 2 and 3.
Closing either of these valves could inhibit the ability of the RHR system to adequately respond to a large break loss-of-coolant accident.
Alternate Testing:
These valves shall be full stroke exercised during cold shutdowns.
4 Rev. 1 S
e 9
~
w y-
-e
--:,,w
,w r
y
,e..--
--.,w y-
,*,,-- - -,,,-