ML20058N302

Forwards Application for Amend to License NPF-69,revising TS 3/4.8.2, DC Sources, 3/4.8.4, Electrical Equipment Protective Devices & Bases for 3/4.6.3, Primary Containment Isolation Valves

ML20058N302
Person / Time
Site:	Nine Mile Point
Issue date:	12/14/1993
From:	Sylvia B NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20058N305	List: ML20058N302 ML20058N326 ML20058N349
References
NMP2L-1456, NUDOCS 9312210324
Download: ML20058N302 (2)

Text

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M Y NIAGARA RUMOHAWK NtAGARA MOHAWK POWER CORPORATION /NINE MILE POINT, PO. BOX 63. LYCOMING. NY 13093/ TELEPHONE (315) 349-2882 B Ralph SyMa December 14, 1993 Executive Vice President Nucl ar NMP2L 1456 U.S. Nuciear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 RE: Nine Mile Point Unit 2 Docket No. 50-410 NPF-69 Gentlemen:

Niagara Mohawk Power Corporation hereby transmits an Application for an Amendment to Nine Mile Point Unit 2 Operating License NPF-69. Also enclosed are proposed changes to the Technical Specifications set forth in Appendix A to the above mentioned license.

Supporting information and analyses demonstrating that the proposed changes involve no significant hazards consideration pursuant to 10 CFR 50.92 are included as Attachment B.

The proposed Technical Specification changes contained herein represent revisions to Specification 3/4.8.2, "DC Sources," Specification 3/4.8.4, " Electrical Equipment Protective Devices," and the Bases for Specifications 3/4.6.3, " Primary Containment Isolation Valves,"

and 3/4.8.4. Specification 3/4.8.2 is divided into two (2) sections, DC Sources-Operating and DC Sources-Shutdown. Both Specifications include a " note" which indicates that two (2) 125-volt chargers are required when the Uninterruptible Power Supply is powered from its backup DC power source. Niagara Mohawk has determined that one (1) battery charger is capable of supplying the largest combined steady-state loads on the battery while recharging the battery from the design minimum charge state to the fully charged state within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Therefore, Niagara Mohawk proposes to revise Specification 3/4.8.2 to delete these " notes."

Specification 3/4.8.2 is being proposed for revision to change the reonired battery cell electrolyte temperature from 60 F to 65 F. Increasing the required electrolyte temperature from 60 F to 65 F is being proposed to increase battery capacity and therefore capacity margin. In addition, Niagara Mohawk proposes to make administrative changes to Specification 3/4.8.4 and to the Bases of Technical Specifications 3/4.6.3 and 3/4.8.4.

These changes are plant specific and not inconsistent with NUREG-1433, " Improved Standard Technical Specifications." Note that changes to page B3/4 8-3 have been submitted in our Application for Amendment dated June 7,1993.

Pursuant to 10 CFR 50.91(b)(1), Niagara Mohawk has provided a copy of this license amendment request and the associated analyses regarding no significant hazards consideration to the appropriate state representative.

Very truly yours, 20903(j ((al, g.% B. Ralp Sylvia g gp/

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Mr. J. E. Menning, Project Manager, NRR .

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Albany, NY 12223 i Records Management j t

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