ML18037A062

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Forwards Addl Info Re Addition of Motor Operated Isolation Valves of Feedwater Sys to Table 6.2-56.Info Will Be Incorporated in Next FSAR Amend.W/Oversize Table 6.2-56. Aperture Card Available in PDR
ML18037A062
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 11/02/1984
From: Mangan C
NIAGARA MOHAWK POWER CORP.
To: Schwencer A
Office of Nuclear Reactor Regulation
References
(NMP2L-0225), (NMP2L-225), NUDOCS 8411060508
Download: ML18037A062 (11)


Text

I',

REGUI ATOR NFORtIATION DISTRIBUTION S EM (RIDS)

ACCESSION NBR: 8411060508 DOC ~ DATE: 8'/11/02 NOTARIZED:

YES DOCKET i'5CILr'50"$

10 Nine Mile Point Nuclear

Station, Unit 2i Niagara Moha 05000410

.AUTH ~ NAthE AUTHOR AFFILIATION MAiilGANiC~ VS Niagara Mohawk Power Corp.

REC IP e NAME RECIPIENT AFFILIATION SCHI'IENCERsA ~

Licensing Branch 2

SUBJECT:

Forwards addi info re addition of motor operated isolation valves of feedwater sys to Table 6.2 56,Info will be incorporated in next FSAR amend,lt/over size Table 6.2 56

'perture card available in PDR, DISTRIBUTION CODE:

B001D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: I.icensing Submittal:

PSAR/FSAR Amdts L Related Cor respondence NOTES:PNL icy FSAR'S It AMDTS ONLY.

05000EI10 RECIPIENT ID CODE/NAME NRR/DL/ADL NRR LB2 LA INTERNAL: AOM/LFMB IE FILE IE/OEPER/IRB 35 NRR ROEgt1~L NRR/DE/CEB 11 NRR/OE/EQB 13 NRR/DE/MEB 18 NRR/DE/SAB 20 NRR/OHFS/HFEB40 NRR/DHFS/PSRB NRR/DSI/AEB 26 NRR/DSI/CPB 10 NRR/OSI/ICSB 16 NRR/DSI/PSB 19 NRR/DSI/RS8 23 RGN1 EXTERNAL: ACRS 01 DMB/DSS (AMDTS)

LPDR 03 NSIC 05 NOTES:

COPIES LTTR ENCL 1

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2 1

1 1

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1 1

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6 6

1 1

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REC IP IENT ID CODE/NAME NRR LB2 BC HAUGHEYgM 01 ELD/HDS3 IE/DEPER/EPB 36 IE/DQASIP/QAB21 NRR/DE/AEAB NRR/DE/EHEB NRR/DE/GB 28 NRR/DE/MTEB 17 NRR/DE/SGEB 25 NRR/DHFS/LQB 32'RR/DL/SSPB NRR/OS I/ASB NRR/OS I/CSB 09 NRR/DS I/METB 12 N

DSI/RAB 22 0'M/DDAMI/MI B

BNL(AMOTS ONLY)

FEMA "REP DIV 39 NRC PDR 02'TIS COPIES LTTR ENCL 1

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1 TOTAL NUMBER OF COPIES REQUIRED; LTTR 54 ENCI 06

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V Mllkek,lRA Q PgQog+Q'g NIAGARAMOHAWKPOWER CORPORATION/300 ERIE BOULEVARDWEST. SYRACUSE, N.Y. 13202/TELEPHONE (315) 474-1511 November 2,

1984 (NMP2L 0225)

Mr. A. Schwencer, Chief Licensing Branch No.

2 Division of Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555

Dear Mr. Schwencer:

Re:

Nine Mile Point Unit 2 Docket-No.

50-410=

Attached is information requested by J.

Lane on the addition of motor operated isolation valves of the feedwater system to Table 6.2-56.

The attached information will be included in the next Final Safety Analysis Report Amendment.

Very truly yours, C.

V. Mang Vice President Nuclear Engineering 8 Licensing DS:ja Attachment xc: R.

Gramm, NRC Resident Inspector Project File (2) 84ii060508 84i.i02 PDR ADOCK 05000410 III PDR

0 I

I II $

I' p,

UNITEO STATES OF AMERICA NUCLEAR REGULATORY COMMISSION In the Matter of Niagara Mohawk Power Corporation

)

(Nine Mile Point Unit 2)

Oocket No. 50-410 AFF IOAVI T W

s C.

V. Mangan, being duly sworn,i states that he is 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 Comnission the documents attached hereto; and ithat all such documents are true and correct to the best of his knowledge, information and belief.

Subscribed and suborn to before me, a Notary Publgi in and for t e State of New York and County of 0

O.

, this~ day of 1984.

Notary Public in and for dQ.<

County, New York Hy Coomission expires:

CHRISTINE AUSTN Hohyy PuNc in the State of Nee York uatified in OnondaBa Cu Nu. 47B76Bg i y Commission Expire> Match 3Q, leXP

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(32)

In addition to a swing check valve inside containment and a positive acting check valve outside containment similar to an Atwood-Horrill boiler feed check valve as described in Catalog 63,Section I, a third valve with high leak-tight integrity will be provided in each line outside containment.

The spring loaded piston operator of the positive acting check valve will be held open by air pressure during normal operation.

Fail-open solenoid vlaves will be used to release air pressure to permit the check valve piston operator to close.

The positive acting check valve and the high leak-tight integrity isolation valve will be remote manually operated from the control room using signals which indicate loss of feedwater flow.

The classification of the feedwater lines from the reactor vessel to and including the third isolation valve will be Code group A; beyond the third valve will be Code group D.

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air J,

C IPC OPC 2FWS KHCV54A 2FWSKAOV23A 2FWSKMOV2IA 2FWS KVI2A Z4A LJ D

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Z-4A, 8 FEEDWATER TO REACTOR PRESSURE VESSEL FIGURE 6.2-70 ISOLATIONVALVEARRANGEMENT FOR PENETRATION Z-4A, B SHEET 3 OF 42 NIAGARA MOHAWK POWER CORPORATION NINE MILE POINT-UNIT 2 FINAL SAFETY ANALYSIS REPORT

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Nine Nile Po) at Unit 2

PS AN Table 6. 2-56 (Coat)

Pene-tration System GOC oi'eg ESF'uide System Fluid size

~in FSAR Arrange-ment

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Location of valve Insider Outside Primary Contain-ment Length of Pipe Con.

tain<vent t<

outermost Isolation valve Type Test

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Potential Bypass Leakage Path<<)

Numbec SVEC GE Opec-4 toc actuatoc Iiode

?ciiary Secondacy Vag~v Pos i Nocaal Shutdovn tion Post-Povec Pailu<S Isola-tion Signa I

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Closure Time

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Povec Soucce

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I-4A Feed)va t e r line A to RFv WATER 24 WATER 6.2-70 SH, 3

6.2-70 SH.

3 OUTSIDE OU'TSIDE 57'-8" Np ZWC5 Hpvzpp 16'-4" C

Np(30)

ZFWS'HOV?14 GATE HOV ELEC HANUAL OPEN Accident CLOSED CipSEO FAI IIo t e s RH NA OIV.

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3P

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1-48 Feedvater line 5 to RPV WATER WATER 24 6.2-70 SH.

3 6.2-70 SH.

3 OUTSIDE OUTSIDE 65'-8" I6'-4" C

Np 2WCS*HOVzpp C

Np(30) 2FWS*HOVZIB GLOBE GLOBE GATE ELEC.

ELEC.

ELEC HANUAI HANUAL HANUAL OPFN OPEN OPEN OPEN CLOSED FAI RH NA OIV I

9 3O HANUAL HANUAL

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9 3P DIV.

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3Q OPEN CLOSED CLOSED CLOSED FA[

FAI SH.

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