ML20135H786
| ML20135H786 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 09/20/1985 |
| From: | Devicentis J, Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| References | |
| REF-GTECI-A-36, REF-GTECI-SF, RTR-NUREG-0612, RTR-NUREG-612, TASK-A-36, TASK-OR SBN-872, NUDOCS 8509240230 | |
| Download: ML20135H786 (4) | |
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SEABROOK STATION Engineering Office September 20, 1985 New Hampshire Yankee Division SBN-872 T.F. B7.1.2 United States Nuclear Regulatory Commission Washington, DC 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 (b) USNRC Letter, dated October 14, 1983. " Heavy Loads Report," G. W. Knighton to R. J Harrison (c) USNRC Letter, dated April 4,1985, " Request for Additional Information for Seabrook Station, Units 1 and 2, Concerning Heavy Load Handling System," G. W. Knighton to R. J. Harrison (d) PSNH Letter (SBN-582), dated June 20,1983, "NUREG-0612; Control of Heavy Loads (Revised Report)," J. DeVincentis to G. W. Knighton
Subject:
Response to RAI 410.56 (Heavy Load Handling System - NUREG-0612)
Dear Sir:
Enclosed please find our response to the subject Request for Additional Information that you forwarded via Reference (c). This RAI will be incorporated into the FSAR by a future amendment.
Further, we are in the process of updating cur report, "NUREC-0612; Control of Heavy Loads," to address your concerns enumerated in Reference (b). We expect to submit this updated report to you by October 30, 1985.
Very truly your,
/
AW John DeVincentis, Director Engineering and Licensing Enclosure cc: Atomic Safety and Licensing Board Service List 8509240230 850920 PDR ADOCK 05000443 Ool A
PDR I
P.O Box 300 Seobrook.NH 03874 Tolophone(603)474-%21
Wl'llic: S.Jordna,ill Donzad I. Chick
- 7 Dicne Curren Tov: Manager Ea'rmon, Weiss & Jordan Tov: ef Exeter 20,001 S. S tre e t, N.W.
10 7:ent Street Suite 430 Exeter, NE 03E33 Washington, D.C.
20009 Ere::vood Board of Selectnen Robert C. ?erlis RID hlron Road Office of the Executive Legal Director Bre::vood, NE 03E33 U.S. Nuclear Regulatory Co ission Washingto, DC 20555 Richz d I. Sullivan, Mayor City Eall Robert A. Zackus, Isquire Newb::yport, MA 01950 1161ovell Street P.O. Box 516 Calvin A. Canney Manchester, NE 03105 City Manager City Eall.
- Philip Ahrens,' Ist'guire 126 Daniel Street Assistabt Attorney General Portsnouth, NE 03801
, Augusta EI 04333 Dana lisbee, Esquire Mr.' John -1. Tanzer Assistant Attorney General Designated Representative of Office of the Attorn'ey General the Town of Ea=pton 205 State House Annex 5 Norningside Drive Con:crd, NE 03301 Eaupto=, NE 03541 An=e Ve'rge, Chairperson
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Roberta C. Pevear Bos:d of Select =en Designated Rep,resentative of Tov: Eall.
the Town of Ea=pton Falls South Ea=pton, NE 03827 Drinkwater. Road Eampton 7 alls, EH 03844 Pat:1ck J. McKeon Selectnen's Office Mr's. Sandra Gavutis 10 Central Road Designated Representa"tive of Rye,- NH 03870 the Tokn cf Kensington RFD 1 Carele 7. Kagan, Esquire East Kingston, NH 03827 Atcule Safety and 1.icensing Board Panel U.S. Nuclear Regulatory Co ission
. Washington, DC 20555 Jo Ann sbetwell.Isquire.
Assistadt Attorney General Environmental Protection Bureau Er. Angi Machiros Department of the Attorney General Chzirman of the Board of Selectmen One. Ashburton Place,19th noor Tovs of Newbury -
Boston, MA 02108 Nevoury, MA 01950 l
Toe: Manager's Office
- Nnator Cordon J. Bumphrey Tous Eall - Friend Street.
U.S. Senate A d ory, MA 01913 Washington,3C.'20510 (ATINt.' Ice Turack)
Senator Gordon J. Humphrey Diana P. Randall 1 Pillsbury Street,
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Coscord, NH 03301 70 Collins Street Seabrook, NH 03874 (AUN:
Herb Boynton)'
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4 ENCLOSURE TO SBN-872 RAI 410.56 As a result of recently identified ACRS concerns, provide a response to the following request for information regarding.the handling of heavy J -ls:
a.
. Describe the means provided to assure the integrity of lif ting eyes, concrete structures, and any other heavy loads so that they will not fall apart while being handled during refueling should the lif ting eye fail or the load impact other structures.
b.
Alternatively, describe the consequences of failure of concrete structures or other heavy loads during handling. This evaluation should confirm that unacceptable fuel damage or damage to safety-related equipment will not occur.
Response
1.
The report entitled, "NUREG-0612; Control of Heavy Loads," submitted with Reference (d), provides an evaluation of heavy load attachment points for the:
a.
Reactor Vessel Head and Upper Internals; b.
RC Pump Motor Lifting Lugs; c.
Neutron' Shield Panel; d.
Reactor Cavity Seal Ring; e.
Reactor Missile Shield; f.
Stud Tensioner; and g.
Equipment Hatch Cover This information can be found in Tab 6 (i.e., Pages 73 and 74) of the subject report.
2.
The following structures and associated lifting eyes were evaluted with regard to the integrity of the eye and structure while being handled during refueling:
Item Factor of Safety
- Containment Building a.
Reactor coolant pump removable 6.5 concrete plug El. 25'-0" b.
Plug for incore detector drive 8.0~
c.
Pressurizer enclosure wall 6.7 (Two removable secticus)
- Factor of safety is ultimate capacity versus dead weight plus 15% impact factor.
r ENCLOSURE TO SBN-872 (continued)
Iten Factor of Safety
- Primary Auxiliary Building d.
CVCS heat exchange concrete floor
.?- 10 plug (two sections)
Emergency Feedwater Pump Building i
e.
Removable concrete floor plug 2 '10 I
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- Factor of safety is ultimate capacity versus dead weight plus 15% impact factor.
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