ML20095J298
| ML20095J298 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 12/18/1995 |
| From: | Eric Simpson Public Service Enterprise Group |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| LR-N95220, NUDOCS 9512270046 | |
| Download: ML20095J298 (3) | |
Text
_ _ _ _ _ _ _ - _ _ _ _ _ _ _
i Public Service Electnc and Gas Cmspey E. C. Simpson Public Service Electric and Gas Company P.O. Box 236 Hancocks Bridge, NJ 08038 609 339-1700 s.,. u.e,. ~. m." * '"
DEC 181995 LR-N95220 United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:
PERNAMENT HYDROGEN WATER CHEMISTRY SYSTEN BOPE CREEK GENERATING STATION PACILITY OPERATING LICENSE NO. NPP-57 DOCKET NO. 50-354 Public Service Electric & Gas Company (PSE&G) submitted letters N LR-N93182 (April 7, 1994), NLR-N94148 (August 18, 1994) and NLR-N94185 (October 24, 1994) to provide the technical bases for using the two (2) existing United States Department of Transportation (DOT) approved hydrogen tube trailers, and the liquid oxygen storage (LOX) tank as permanent storage facilities for the Hope Creek Generating Station.
These storage facilities wera assessed by PSE&G using the criteria contained in Electric Power Research Institute (EPRI) Special Report NP-5283-SR-A, EPRI Guicalines for Permanent BWR Hydrogen Water Chemistry Installations, 1987 Revision.
The Nuclear Regulatory Commission (NRC) has documented the results of their review of the letters referenced above in a Safety Evaluation Report dated September 14, 1995.
The NRC concluded that the existing LOX tank is acceptable as installed.
However, the NRC expressed reservations regarding the installation of the hydrogen tube trailers as installed based on uncertainties with the methodology used to predict transport distances of the tube trailers in the event of a design basis I
tornado.
It is the NRC's position that positive restraints in the form of detachable permanent anchorage be provided for the hydrogen tube trailers to ensure that they will have a low likelihood of being transported in the event of a tornado.
Therefore, PSE&G was requested by the NRC to provide the plan and schedule for installation of restraints, or similar protective actions.
l PSE&G plans to restrain each hydrogen tube trailer with four (4) l approximately 4 ton concrete blocks as shown on the attached Figure.
Each block will be connected to the adjacent trailer with a removable chain.
The chains and concrete block connections will be designed with sufficient margin to ensure the I
blocks will remain attached to the trailers during a design basis 9512270046 951218
@ enn, c on q,4 necycied pape, PDR ADOCK 05000354
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, i DEC 181995 Document Control Desk 2
LRrN95220 tornado.
The proposed anchoring will provide the necessary restraint to decrease the maximum calculated travel distance of a hydrogen tube trailer with one tube attached that may result from a design basis tornado by approximately 50%.
Therefore, the proposed anchoring will address the possible uncertainties in the methodology used to calculate transport distances by providing effective restraint of the trailers, and provide further assurance that the safe separation distance required in accordance with EPRI Special Report NP-5283-SR-A will be i
maintained.
The Design Change Package (DCP) is scheduled for completion by January 31, 1996.- The DCP will be made available for your review upon request.
Installation is planned to be completed by April 1, 1996.
Please contact us should you have any questions regarding this submittal.
Sincerely, a.
Attachment C
Mr. T. T. Martin, Administrator - Region I U.
S.
Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Mr.
D. Jaffe, Licensing Project Manager - Hope Creek U.
S.
Nuclear Regulatory Commission one White Flint North 11555 Rockville Pike Mail Stop 14E21 Rockville, MD 20852 Mr.
R. Summers (X24)
Senior Resident Inspector Mr.
K. Tocch, Manager, IV Bureau of Nuclear Engineering 33 Arctic Parkway CN 415 Trenton, NJ 08625
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