ML17055B334

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Forwards Rev 2 to High Energy Line Break Evaluation Rept (Effect on Nonsafety-Related Control Components) Nine Mile Point Unit 2, Superseding 851211 Rev 1.High Energy Line Break in Turbine Bldg Bounded by Chapter 15 of FSAR
ML17055B334
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 03/03/1986
From: Mangan C
NIAGARA MOHAWK POWER CORP.
To: Adensam E
Office of Nuclear Reactor Regulation
Shared Package
ML17055B335 List:
References
(NMP2L-0643), (NMP2L-643), NUDOCS 8603070336
Download: ML17055B334 (6)


Text

REGULAT INFORMATION DISTRIBUTION TEM (RIDS)

ACCESSION NBR: SE 03070336 DOC. DATE: 86/03/03 NOTARIZED: YES 'OCKET 0 FACIL: 50-410 Nine Mile Point Nuclear Stations Unit 2i Niagara Moha 05000410 AUTH. NAME AUTHOR AFFILIATION MANGANz C. V. Niagara Mohawk Power Corp.

RECIP. NAME RECIPIENT AFFILIATION ADENSAM E. G. BWR Prospect Directorate 3

SUBJECT:

Forwards Rev 2 to "High Energy Line Break Evaluation Rept (Effect on Nonsafetg-Related Control Components) Nine Mile Point Unit. 2i " superseding 851211 Rev 1. High energy line break in turbine bldg bounded bg Chapter 15 of FSAR DISTRIBUTION CODE: 8001D COPIES RECEIVED: LTR ENCL S 2 TITLE: Licensing Submittal: PSAR/FSAR Amdts 0 RelatadWRrrrespondence NOTES:

RECIPIENT COP IES REC IP IENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR E CL BWR ADTS BWR PD3 PD 1 BWR EB 1 BWR EICSB BWR FOB 1 BWR PD3 LA 1 HAUGHEYz M Ol 2 BWR PSB BWR RSB 1 r

INTERNAL: ACR S 41 ADM/LFMB ELD/HDS3 1 IE FlLE IE/DEPER/EPB 36 1 IE/DGAVT/GAB 21 NRR BWR ADTS 1 NRR PWR-A ADTS NRR PWR-B *DTS 1 NRR ROE'. L NRR/ /HF IB NRR/DHFT/MTB EG FILE 04 1 1 RGN1 IB 1 0 EXTERNAL: 24X 1 BNL(AMDTS ONLY)

DMB/DSS (AMDTS) LPDR 03 NRC PDR 02 1 1+ NSIC 05 PNL GRUEL'

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TOTAL NUMBER OF COPIES REQUIRED: LTTR 39 ENCL 1

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NIAGARA MOHAWK POWER CORPORATION/300 ERIE BOULEVARD WEST, SYRACUSE, N.Y. 13202/TELEPHONE (315) 474-1511 March 3, 1986 (NMP2L 0643)

Ms. Elinor G. Adensam, Director BWR Project Directorate No. 3 U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Washington, DC 20555

Dear Ms. Adensam:

Re: Nine Mile Point Unit 2 Docket No;-50=410.

Enclosed are ten copies of the NMP2 High Energy Line Break Evaluation Report (Effect on Nonsafety-Related Control Components), Revision 2, dated February 1986. This revision supersedes Revision 1, dated December ll, 1985 submitted on January 2, 1986.

In the December 11, 1985 report, itidentified was stated that a high energy line that could result in a break in the turbine building had been transient that is not covered under the existing Chapter 15 of the Final Safety Analysis Report. The evaluation of that event has been completed and, as reported on page 3-12 of Revision 2, it shows that the event is bounded by Chapter 15 of the Final Safety Analysis Report.

We believe this closes Safety Evaluation Report Confirmatory Issue No. 27.

Very truly yours, C. V. Mangan Senior Vice President NLR:ja 1367G Enclosure xc: R. A. Gramm, NRC Resident Inspector Project File (2) 8603070336 860303 PDR ADOCK,050004l0 A PDR i

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UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION In the Matter of Niagara Mohawk Power Corporation ) Docket No. 50-410 (Nine Mile Point Unit 2)

AFFIDAVIT C. V. Man an , being duly sworn, states that he is Senior Vice President of Niagara Mohawk Power Corporation; that he is authorized on the part of said Corporation to sign and file with the Nuclear Regulatory Commission the documents attached hereto; and that all such documents are true and correct to the best of his knowledge, information and belief.

Subscribed and swor York and County of to b fore me, a

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Notary Public in day of d for he State of New 1986.

ot ry Public in and for County, New York My Commission expires:

JANIS M. MACRO Notary Public In tho State of New Vortex Qualified In Onondaca County No. 47845 5

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