ML20028F554
| ML20028F554 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 01/31/1983 |
| From: | Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE, YANKEE ATOMIC ELECTRIC CO. |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| References | |
| SBN-446, NUDOCS 8302020152 | |
| Download: ML20028F554 (2) | |
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1671 Worcesser Rood Frondnohom, Mossochueens 01701 M W W h We (617) 872 - 8100 January 31, 1983 SBN-446 T.F. B7.1.2 United States Nuclear Regulatory Commission Washington, D. C. 20555 Attention:
Mr. George W. Knighton, Chief Licensing Branch No. 3 Division of Licensing
References:
(a) Construction Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444
Subject:
Open Item Response (SRP 9.5.8; Power Systems Branch)
Dear Sir:
In response to an open item regarding the design of the Emergency Diesel Generator (EDG) exhaust piping, the following commitments are provided:
1.
During the monthly periodic or operational verification testing of the diesel, and following an extended (greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) l operation of the diesel, the flanged joints on the Diesel Exhaust i
System will be visually inspected for leakage.
2.
Following the first five years of operation, but prior to ten years of operation, an inspection program, using appropriate techniques (i.e., visual, UT, RT, or other form of NDE), will be performed.
This program will verify that the observed loss of wall thickness will not occur within the 40-year design lifetime of the system.
Subsequent inspections, if required, will be scheduled based on the results of the first inspection and the predicted continued loss of wall thickness. Because of the identical use of components and operating conditions, the inspection program only needs to be i
performed on one EDG Exhaust System and will initially be limited to only the area of highest potential corrosion and erosion. This area l
is considered to be the exhaust silencer outlet elbow.
The above commitments will be included in OL Application Amendment 48.
Very truly youcs, 8302020152 830131 DR ADOCK 05000443
/
4E PDR QOf J. DeVincentis Project Manager ALL/fsf cc: Atomic Safety and Licensing Board Service List 1000 Elm St., P.O. Box 330, Manchester, NH 03105 Telephone (603) 669-4000 TWX 7102207595
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l ASLB SERVICE LIST Philip Ahrens, Esquire Assistant Attorney General Department of the Attorney General Augusta, ME 04333 Representative Beverly Hollingworth Coastal Chamber of Commerec 209 Winnacunnet Road Hampton, NH 03842 William S. Jordan, III, Esquire Harmon & Weiss 1725 I Street, N.W.
Suite 506 Washington, DC 20006 E. Tupper Kinder, Esquire Assistant Attorney General Office of the Attorney General 208 State House Annex Concord, NH 03301 aobert A. Backus, Esquire 116 Lowell Street P.O. Box 516 Manchester, NH 03105 Edward J. McDermott, Esquire Sanders and McDermott Professional Association 408 Lafayette Road Hampton, NH 03842 Jo Ann Shotwell, Esquire Assistant Attorney General Environmental Protection Bureau Department of the Attorney General One Ashburton Place, 19th Floor Boston, MA 02108 4
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