Forwards S&W Calculations PX-60012-2,MS-2155-0 & PX
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/ REQUL RY INFORMATION DISTR IHUTI0 SYSTEM ( R IDS ) CAR l ,ACCESSION NBR: 870903009 DOC. DATE: 87/08/28 N t. ZED: NO DOCKET 0 FAG IL: 50-410 Nine Mile Point Nuclear Stations Unit 2i- Niagara Moha 05000410 AUTH. NAME AUTHOR AFFILIATION MANQANiC. V. Niagara Mohawk Power Corp. RECIP. NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk) SUBJECT: Forwardscanal'g SbW Calculations PX-60012-2I MS-2155-0 5 PX-60160-0 in support of review of final rept on downcomer design r 5 is. DISTRIBUTION CODE: AOOID COPIES RECEIVED: LTR 3 ENCL L SIZE: TITLE: OR Submittal: General Distribution I NOTES: 21 REC IP lENT COP IEB RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME ., LTTR ENCL PDi-1 L* 1 0 PD1-1 PD 5 5 HAUQHEYI M 1 BENEDICT' 1 INTERNAL ACRB 6 6 ARM/DAF/LFMH 0 NRR/DEBT/ADS 1 1 NRR/DEBT/CEH 1 1' NRR/DEST/MTH 1 1 NRR/DEBT/RSH NRR/DOE*/TSH 1 1 ILRH 1 1 OQC/HDB1 0 EG FILE 01 1 1 RES/DE/EIH 1 EXTERNAL: EGhQ HRUSKE> S 1 1 LPDR 1 1 NRC PDR 1 NBIC 1 TOTAL NUMBER OF COP IEB REQUIRED: LTTR 28 ENCL 25 NI Wrf Cl ll 1 -g 'H V NIAGAR U MOHAWK NIAGARAMOHAWKPOWER CORPORATION/301 PLAINFIELDROAD, SYRACUSE, N.Y. 13212/TELEPHONE (315) 474-1511 August 28, 1987 (NMP2L 1070) U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 Re: Nine Mile Point Unit 2 Docket No. 50-410 NPF-69 Gentlemen: By letter dated May 15, 1987 (NMP2L-1035), Niagara Mohawk submitted a final report on Downcomer Design Reanalysis for Nine Mile Point Unit 2. In order to complete the review of this report, members of the Nuclear Regulatory Commission staff requested that Niagara Mohawk submit the detailed design calculations which support this reanalysis. Therefore, please find enclosed the following calculations: 1. Stone 8I Webster Engineering Corporation Calculation No. PX-60012-2, which supercedes Revision 1 submitted on'anuary 23, 1986. 2. Stone & Webster., Engineering Corporation Calculation No. MS-2155-0, , which'e-evaluates the safety relief valve (SRV),and condensation oscillati'on (C.O.) load definitions and also supplements Calculation No. MS-1869-2 submitted on January 23, 1986. 3. Stone 8 Webster'ngineering Corporation Calculation No. PX-60160-0 '(Plant Specific Condensation Oscillation Loads) ~ These three (3) calculations should be reviewed along with Stone 8 Webster Engineering Corporation Calculation Nos. MS-1869-2 and MS-2053-0, submitted to the Nuclear Regulatory Commission on January 23, 1986 (NMP2L-0590). Very truly yours, NIAGARA MOHAWK POWER CORPORATION 87090> 0097'~08>>-~.--- ADOCK 05000+fp PDR,,' C. V. Man n Senior Vice President PEF/pns -3627 G Enclosure xc: Regional Administrator, Region I Mr.,R. A. Capra, Director Ms. M. F. Haughey, Project Manager (2 copies) Mr. W. A. Cook, Resident Inspector STONE 6 WEBSTER ENGINEERING CORPORATION CALCULATION TIT.LE PAGE %SEE INSTRUCTIONS ON REVERSE SI >so>o.ec tFRoNTI )Q CLIENT 6 PROJECT ' PAGE I OF I:3(3$ ( I 2QAp M 09~+4 NI Qp,Q MOHAWK f'ow6 g yJ pZ ~2'~ CALCULATIONTITLE (Indicative of the Objective): QA CATEGORY (Q — J)OVdN~~ 6ad7JCC QO QQQ elk gUIJgl )gal X NUCLEAR j Dppgj SAFETY RELATED Cla Ozz 0 OTHER CALCULATIONIDENTIFICATIONNUMBER CURRENT OPTIONAL OPTIONAL. ~ W.O NO. DIVISION GROUP J. O. OR 8 CAI C. NO. TASK CODE WORK PACKAGE NO. l~I77 v/'DJ fV-docile. % — APPROVALS SIGNATURE 6 DATE ~ REV. NO: SUPERSEDES CONFIRMATION OR NEW + CALC. NO. wREQUIRED (A PREPARER (S)/DATE (S) REVIEWER(S)/DATE (8) INDEPENDENT REVIEWER($)/DATE(S) CALC NO OR REV. NO. YES NO C<5jtVAL. 34@g@ C@('I~M kedrsI()I Oli(."Wlh'L WO 6q; ((;VI~gy: V, CHINKS, + T5 cgoing 4l j.4. +sic) Q lac i-i9M P. W4~ Q ver l y i/~~jet WAa AA4 9 y'. a s~ ,~ 5laypdk p'/z/g7 S-5->7 5 ~/87 a~W 4j. 'f 7/o5 I7 DISTRIBUTION% COPY COPY GROUP I NAME S LOCATION I SENT GROUP I NAME 6 LOCATION I SENT ( (A RECORDS MGT. I I I C'+sac c FILES (OR FIRE I I 'AN~NA/4 ~/~~pz. I ~ A FILE IF NONE) 5M /1~>'~ITIC I C)IPC I I I Elb Hfdf.~KP I Q, ~Q~A4 ~ I CHIC. I I I ' I I = ,' FLd» i I QloJP p 8709030097 ~~~ ~ P g I 5 %'I 1 ~ (t II 0 STATEMENT OP REVIEW CALCULATION mmER l2(77 d9- PX- 600/ 2- This calculation has been revfeved in accordance vith EMAIL-CH&l- and vas found to be adequate. The method of reviev vas: (circle appropriate items) a. Comparison vith a similar qalculation (number b. Alternate calculation or simplified approach. c. Number by number check. NONINDEPEND REV /DATE The statement belov appliea to Nuclear Safet Related gh Category I cal- culations only. This calculation has been INDEPENDENTLY repaved in accordance vith EHAGKH41- and vas found to be adequate. The aathod of reviav vae: (circle appropriate items) a. Comparison vith prequalifiad methods and assumptions (prequalified docuaent number(s) ) b. 'ddressing the kay questions appearing in Attachment 6.3 of EAP 3.1, Rev. a ,I tf K II %pig P II il Ol 4 il PtPl P g REVISON STATUS TABLE — CALCULATIONNO. t X- 8 Il30 JOBORDER NO. zl77'o REV PAGE NON-INDEPENDENT INDEPENDENT REASON REVISOR/ DATE APPROVAL/DATE NO. NO. 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