ML20210T181
| ML20210T181 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 09/29/1986 |
| From: | Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE |
| To: | Noonan V Office of Nuclear Reactor Regulation |
| References | |
| SBN-1205, NUDOCS 8610080324 | |
| Download: ML20210T181 (3) | |
Text
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o-SEABROOK STATION Enginrsring Offics 0
- ) d September 29, 1986 Put2c Son 4ce of New Hampshire SBN-1205 T.F.
B7.1. 2 NEW HAMPSHIRE YANKEE DIVISION 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-1002), dated April 11, 1986,
" Diesel Generator Operation at No Load, SSER Sections 8.3.1.2.8 and 9.5.4.1", W. P. Johnson to V. S. Noonan (c) PSNH Letter (SBN-903), dated November 27, 1985,
" Resolution of Power System Branch Confirmatory Items",
J. DeVincentis to G. W. Knighton Subj ect :
Diesel Generator No Load Operation, SSER Sections 8.3.1.2.8 and 9.5.4.1
Dear Sir:
Reference (b) documented that Seabrook's diesel generators could operate at no-load for up to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> with no ef fect on diesel generator output or operation under load.
SSER Supplement 4, Section 9.5.4.1, documents acceptability of this information.
Reference (c) provided the results of a six-hour no-load factory test on the diesel generator.
SSER Supplement 4, Section 8.3.2.1.8, documents the acceptability of these test results.
SSER Supplement 4, Section 8.3.1.2.8, documented that the Staf f still needed to review the results of the Diesel Generator Preoperational Testing with respect to no-load operation. The no-load diesel generator test was conducted as part of Preoperational Test No. PT-33.2, " Emergency Diesel Generator Reliability Tests".
A copy of this procedure is avail-able for review through our Bethesda Licensing Of fice. The test con-sisted of four hours of no-load operation followed by loading to full load in less than 120 seconds, operation at full load for at least one minute, and then operation at greater than 50% load for at least one hour. The results of this test were acceptable.
8610090324 860929
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PDR ADOCK 05000443 E
PDR tD Seabrook Station Construction Field Office. P.O. Box 700. Seabrook, NH O3874
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United States Nuclear Regulatory Commission SBN 1205 Attention:
Mr. Vincent S. Noonan Page 2 SSER Supplement 4, Section 8.3.1.2.8, also requested that periodic testing of no-load operation capability be included in the Technical Specification.
Since this capability has been verified during factory and preoperational testing, since we know of no condition that could change.this capability, and since plant procedures ensure adequate-control of no-load operation, we see no need to include such require-ment in the Technical Specifications.
We request that this information be reflected in the next supplement to Seabrook's Safety Evaluation Report.
Very trul yours, 4
/
John DeVincentis Director of Engineering cc: Atomic Safety and Licensing Board Service List
Dicas Curren, Esquiro Patar J. Mathswa, Mayor Harmon & Weico City H211 2001 S. Street, N.W.
Newburyport, MA 01950 Suite 430 Washington, D.C.
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Fine, Good & Mizner Office of the Executive Legal Director 88 Broad Street s
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 i
Manchester, NH 03105 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 Concord, NH 03301-6397 Mrs. Sandra Gavutis Chairman, Board of Selectmen Mr. J. P. Nadeau RFD 1 - Box 1154 Selectmen'a Office Kennsington, 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 Boston, MA 02108 Newbury, MA 01950 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 i
Richard A. Hampe, Eng.
Senator Gordon J. Humphrey Hampe and McNicholas 1 Pillsbury Street 35 Pleasant Street Concord, NH 03301 Concord, NH 03301 (ATTN: Herb Boynton)
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