ML20206N329
| ML20206N329 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 12/08/1998 |
| From: | Eric Simpson Public Service Enterprise Group |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| LCR-H98-05, LCR-H98-5, LR-N98507, NUDOCS 9812160250 | |
| Download: ML20206N329 (6) | |
Text
Puuc servce E;ectro and Gas Company E. C. simpson Pubhc Service Electnc and Gas Company PO. Box 23C, Hancocks Bndge. NJ 08038 609-339-1700 s _ -,,e _ n _ r " "
DEC 8 1998 LR-N98507 LCR H98-05 United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:
SUPPLEMENT TO A REQUEST FOR LICENSE AMENDMENT SINGLE CELL CHARGING SAFETY RELATED BATTERIES HOPE CREEK GENERATING STATION FACILITY OPERATING LICENSE NPF-57 DOCKET NO. 50-354 By letter dated September 8,1998, Public Service Electric & Gas Company (PSE&G) submitted License Change Request (LCR) H98-05 for an amendment to the Facility Operating License for the Hope Creek Generating Station. Specifically, LCR H98-05 requested NRC approval to use non-Class 1E single cell battery chargers, with proper electrical isolation, for charging connected cells in OPERABLE Class 1E batteries.
During a telephone conference with PSE&G on October 15,1998, the NRC Staff requested additional information regarding the procedure for single cell charging. contains the requested information.
PSE&G has determined that the information contained in this letter and its attachments do not alter the conclusions reached in the 10CFR50.92 No Significant Hazards analysis previously submitted with LCR H98-05. In accordance with 10CFR50.91(b)(1),
a copy of this submittal has been sent to the State of New Jersey. Should you have any questions regarding this request, please contact Paul Duke at 609-339-1466.
Sincerely, Affidavit
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9812160250 981200 PDR ADOCK 05000354 l
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Document Control Desk,
LR-N98507 DEC8 1999 I
C Mr. H. Miller, Administrator - Region i U. S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Mr. R. Ennis Licensing Project Manager - Hope Creek U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 14E21 11555 Rockville Pike Rockville, MD 20852-1 Mr. S. Pindale (X24)
USNRC Senior Resident inspector - HC Mr. K. Tosch, Manager IV Bureau of Nuclear Engineering P. O. Box 415 l
Trenton, NJ 08625 l
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l Document Control Desk LR-N98507 DEC 8 1999 PRD-l BC Senior Vice President - Nuclear Operations (X04) l Senior Vice President - Nuclear Engineering (N19) l General Manager - Hope Creek Operations (H07)
Director-QA/NT/EP (X01)
Director-Licensing / Regulation and Fuels (N21) i Manager - Financial Control & Co-Owner Affairs (N07) l Program Manager - Nuclear Review Board (N38)
Operations Manager - Hope Creek (H01)
Manager - Plant Maintenance - Hope Creek (H07)
Manager - System Engineering - Hope Creek (H18)
Manager - Maintenance Engineering (XO6)
Electrical /l&C Manager (N47) l L. Rajkowski(H18)
Manager-Hope Creek Licensing (N21)
J. Keenan, Esq. (N21)
Records Management (N64)
Microfilm Copy Files Nos.
1.2.1 (Hope Creek) 2.3 (LCR H98-05) l
l REF: LR-N98507 LCR H98-05 STATE OF NEW JERSEY )
) SS.
COUNTY OF SALEM
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E. C. Simpson, being duly sworn according to law deposes and says:
I am Senior Vice President - Nuclear Engineering of Public Service Electric and Gas Company, and as such, I find the matters set forth in the above referenced letter, concerning Hope Creek Generating Station, Unit 1, are true to the best of my knowledge, information and belief.
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Subscribed and Sworn to before me this K
day of d,1998 I
lnkl<fL D.Y L Notary Phlic of Ne[ Jersey EUZABETH J. KIDD NOTARY PUBUC OF NEW JERSEY 1
My Commission Expires April 25,2000 My Commission expires on l
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ATTACHMENT HOPE CREEK GENERATING STATION FACILITY OPERATING LICENSE NPF-57 DOCKET NO. 50-354 SUPPLEMENT TO LICENSE CHANGE REQUEST H98-05 i
- 1. Provide a description of the non-Class 1E single cell battery charger.
The charger will be the Propel, Inc. battery charger, Model CRAT-50-20 (0-50 Ampere,0-20 VDC), or its equivalent. These are portable charging units.
They are transported on a cart and rest on the floor (off the cart) while in use.
- 2. Are the non-Class 1E single cell battery chargers anchored to prevent a potential missile hazard to Class 1E batteries?
PSE&G's procedure for the use and storage of transient loads requires that transient loads be controlled when they are used in seismic control areas (such as the Class 1E battery rooms). The controls are provided to prevent damage to OPERABLE safety related equipment during an earthquake. Control of transient loads is established by evaluating the load and, where necessary, securing it with restraints.
4 The procedure contains criteria for maximum permitted height of temporary equipment and for minimum required distance from safety related equipment. The basis for the criteria is to ensure unrestrained temporary equipment does not oresent a potential hazard to safety related equipment by overturning, sliding or rolling. Temporary equipment may be used without restraint if these criteria are satisfied. When the criteria cannot be satisfied, the temporary equipment is required to be restrained.
Typically, single cell chargers will be used without restraint since, in most cases, the minimum distance criteria will be satisfied. In cases where the distance between the charger and any safety related equipment is less than the minimum required distance, the charger will be restrained in accordance with PSE&G's procedure.
- 3. Describe the cables used to connect the non-Class 1E single cell battery chargers to Class 1E batteries.
The charging leads from the charger to the battery cell are #8 AWG or larger with insulation rated for 240V or greater. The voltage sensing leads between the charger and the battery cell are #18 or #20 AWG. While the leads are non-Class 1E, the plant procedures governing their use will require a visual inspection of the leads before connection to the battery and the use of insulated matting near terminals that could be affected by charger leads becoming dislodged. These procedures will provide adequate assurance that the leads or connecting clips will not cause a D cum:nt Central Dick LR-N98507 Attachment LCR H98-05 battery thort. Similar controls on the use of non-safety related battery cables and connecting clips were evaluated by the NRC and found to be acceptable in a Safety Evaluation Report provided to the licensee in a letter dated December 20,1989 for the Virgil C. Summer Nuclear Station.
- 4. PSE&G's submittal dated September 8,1998 states that Class 1E fuses will be used between the battery and the charger to protect the battery if a fault should develop in the charger. Describe where the fuses will be located and how they will be mounted.
The fuses described in the September 8,1998 submittal are bolted to the frame of the battery charger. At least two class 1E two fuses in series will be used to connect the positive lead of the charger to the positive terminal of the battery cell and at least two class 1E fuses in series will be used to connect the negative lead of the charger to the negative terminal of the battery cell.
- 5. Describe how the ac input to the single cell battery charger is protected.
The battery changer will be powered from non-Class 1E 115 VAC. The battery charger internal design includes diodes and a power transformer which will not allow current to flow from the DC side to the AC side.
- 6. PSE&G's submittal dated September 8,1998 states that an insulating material will be used to minimize the possibility of shorting leads or clips at the battery. Describe the insulating material.
The procedure for single cell battery charging will direct the placement of insulated matting rated for a minimum of 1000V near low voltage cell connections that could be affected by charger leads becoming dislodged.
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