ML18094B300
| ML18094B300 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 02/09/1990 |
| From: | Stone J Office of Nuclear Reactor Regulation |
| To: | Miltenberger S Public Service Enterprise Group |
| References | |
| TAC-75176, TAC-75177, NUDOCS 9002220415 | |
| Download: ML18094B300 (5) | |
Text
..
February 9, l~
Docket Nos. 50-272 and 50-311 DISTRIBUTION w/enclosure Docket r1'Te-JStone Mr. Steven E. Miltenberger Vice President and Chief Nuclear Officer Public Service Electric & Gas Company Post Office Box 236 Hancocks Bridge, New Jersey 08038
Dear Mr. Miltenberger:
NRC PDR MThadani Local PDR OGC PDI-2 Reading EJordan SVarga ACRS (10)
BBoger FRosa WButler MO'Brien
SUBJECT:
125 AND 28 VOLT BATTERY SERVICE TESTS (TAC NOS. 75176 AND 75177)
RE:
SALEM GENERATING STATION, UNIT NOS. 1 AND 2 Your letter of October 17, 1989 requested an amendment to the Salem 1 and 2 Technical Specifications to change the service test requirements for the 125 and 28 volt station batteries. In order for the staff to complete its review of your request, additional information is needed as detailed in the enclosure.
Your October 17, 1989 request stated a desire to have these amendments approved for use during the upcoming Salem 2 refueling outage, scheduled to begin March 31, 1990.
In order to give the staff sufficient time for review, your response is requested by March 1, 1990.
The reporting and/or record keeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Enclosure Request for Additional Information cc w/enclosure:
See next page
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 Docket Nos. 50-272 and 50-311 Mr. Steven E. Miltenberger Vice President and Chief Nuclear Officer Public Service Electric & Gas Company Post Office Box 236 Hancocks Bridge, New Jersey 08038
Dear Mr. Miltenberger:
February 9, 1990
SUBJECT:
125 AND 28 VOLT BATTERY SERVICE TESTS (TAC NOS. 75176 AND 75177)
RE:
SALEM GENERATING STATION, UNIT NOS. 1 AND 2 Your letter of October 17, 1989 requested an amendment to the Salem 1 and 2 Technical Specifications to change the service test requirements for the 125 and 28 volt station batteries. In order for the staff to complete its review of your request, additional information is needed as detailed in the enclosure.
Your October 17, 1989 request stated a desire to have these amendments approv~d for use during the upcoming Salem 2 refueling outage, scheduled to begin March 31, 1990.
In order to give the staff sufficient time for review, your response is requested by March 1, 1990.
The reporting and/or record keeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Enclosure Request for Additional Information cc w/enclosure:
See next page Sincerely,
~to:, =.anager Project Directorate I-2 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation
REQUEST FOR ADDITIONAL INFORMATION FOR SALEM 125 AND 28 VOLT'trATTERY SERVICE TEST ENCLOSURE The licensee's October 17, 1989, letter related to the service tests for the 125 and 28 volt batteries. As a result of the staff's review of the documentation and information provided, the following questions have been identified which require response in order for our review to be completed:
- 1.
Proposed changes to Specifications 4.8.2.3.2d and 4.8.2.5.2d state that the battery capacities are verified to be adequate to supply and maintain in operable status all actual or simulated loads for the design duty cycle when the batteries are subjected to battery service tests. Provide a detailed description of the 11design duty cycle" including a tabulation of all the continuous and momentary loads and their durations which occur during the design duty cycle.
It should be noted that the current Salem Technical Specifications (including Bases) or updated FSAR apparently do not contain a description of the design duty cycle nor has one been proposed in this amendment request. It is the staff's position that a concise description of the design duty cycle should be included in either the plants' Technical Specifications or the updated FSAR.
- 2. to the October 17, 1989, amendment request contains information describing the criteria and methodology utilized to identify and calculate battery loads for the battery service test profiles. Assumption II.C in states that the scenario is loss of AC power (offsite) coincident with a LOCA.
Assumption II.D states that for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> immediately following the start of the scenario battery chargers are not available. Assumption II.F states that 4160 volt vital loads obtain power from the diesel generators for the entire 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. Assumption II.E states that during the 1-120 minute time interval offsite power becomes available and non-vital 4160 volt loads are manually reconnected to offsite power.
.. In previous battery load calculations reviewed and approved by the staff, the most conservative approach taken by licensees was to wait until the 12lst minute (end of the scenario) before reconnecting loads (vital and non-vital) back to offsite power.
Provide technical justification for Assumption II.E as being the most conservative approach for adequate battery capacity sizing and service test profiles.
- 3.
Assumption H in Attachment 4 states that no consideration was given to inrush currents associated with spring charging motors in circuit breakers or solenoid operated valves.
In light of paragraph 4.2.3 of IEEE Std 485-1978, 11 IEEE Recommended Practice for Sizing Large Lead Storage Batteries for Generating Stations and Substations, 11 which states that inrush currents are typical momentary loads to be considered in battery load profiles, provide justification for the apparent non-conservative approach of not considering inrush currents.
Mr. Steven E. Miltenberger Public Service Electric & Gas Company cc:
Mark J. Wetterhahn, Esquire Conner and Wetterhahn Suite 1050 1747 Pennsylvania Avenue, NW Washington, DC 20006 Richard Fryling, Jr., Esquire Law Department - Tower SE 80 Park Place Newark, NJ 07101 Mr. L. K. Miller General Manager - Salem Operations Salem Generating St~tion P.O. Box 236 Hancocks Bridge, NJ 08038 Mr. S. LaBruna Vice President - Nuclear Operations Nuclear Department P.O. Box 236 Hancocks Bridge, New Jersey 08038 Kathy Halvey Gibson, Resident Inspector Salem Nuclear Generating Station.
U.S. Nuclear Regulatory Commission Drawer I Hancocks Bridge, NJ 08038 Richard F. Engel Deputy Attorney General Department of Law and Public Safety CN-112 State House Annex Trenton, NJ 08625 Dr. Jill Lipoti, Ph.D New Jersey Department of Environmental Protection Division of Environmental Quality Radiation Protection Programs State of New Jersey CN 415 Trenton, NJ 08625 Maryland People's Counsel American Building, 9th Floor 231 East Baltimore Street Baltimore, Maryland 21202 Salem Nuclear Generating Station Richard B. McGlynn, Co11111ission Department of Public Utilities State of New Jersey 101 Commerce Street Newark, NJ 07102 Regional Administrator, Region I U. S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Lower Alloways Creek Township c/o Mary 0. Henderson, Clerk Municipal Building, P.O. Box 157 Hancocks Bridge, NJ 08038 Mr. Bruce A. Preston, Manager Licensing and Regulation Nuclear Department P.O. Box 236 Hancocks Bridge, NJ 08038 Mr. David Wersan Assistant Consumer Advocate Office of Consumer Advocate 1425 Strawberry Square Harrisburg, PA 17120 Mr. Scott B. Ung~rer MGR. - Joint Generation Projects Atlantic Electric Company P.O. Box 1500 1199 Black Horse Pike Pleasantville, NJ 08232 Mr. Jack Urban Gener~l Manager, Fuels Department Delmarva Power & Light Company 800 King Street Wilmington, DE 19899 Public Service Commission of Maryland Engineering Division ATTN:
Chief Engineer 231 E. Baltimore Street Baltimore, MD 21202-3486