ML17317A989

in Response to NRC 790103 Ltr,Forwards Tech Spec Changes Reflecting Evaluation of Postulated Fuel Handling Accident Inside Containment

ML17317A989
Person / Time
Site:	Cook
Issue date:	03/07/1979
From:	Disbrow R INDIANA MICHIGAN POWER CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
AEP:NRC:00129, AEP:NRC:129, NUDOCS 7903140265
Download: ML17317A989 (8)

Text

REGULATORY NFORMATION DISTRIBUTION SY EM (RIDS)

ACCESSION NBR:7903140265 DOC ~ OATEN'9/03/07 NOTARIZED: YES DOCKET FAC IL 50 31 5 DONALD C ~ COOK NUCLEAR POWER PlANT g UNIT 1 g INDIANA 5 050003 1 5 AUTH'AME AUTHOR AFFILIATION DISBROW R ~ E ~ INDIANA & MICHIGAN POWER CO ~

RECIP ~ NAME RECIPIENT AFFILIATION DENTON H ~ R ~ OFFICE OF NUCLEAR REACTOR REGULATION

SUBJECT:

IN RESPONSE TO NRC 790103 LTR FORWARDS TECH SPEC CHANGES REFLECTING EVALUATION OF POSTULATEO FUEL HANDLING ACCIDENT INSIDE CONTAINMENT~

DISTRIBUTION CODE: ASSIS TITLE:

COPIES RECEIVED:LTR i ENCL i GENERAL DISTRIBUTION FOR AFTKR ISSUANCE OF OPERATING SIZE:

lIC REC IP IENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL ACTION: 05 BC dgH~ 7 7 o EG FILE i'NTERNAL 1 1 02 NRC PDR 1 2 2 14 TA/EDO 1 1 15 CORE PERF BR 1 1 16 AO SYS/PROJ 1 1 17 ENGR BR 1 1 1S REAC SFTY BR 1 1 19 PLANT SYS BR 1 1 20 EEB 1 1 21 Ef LT TRT SYS 1 1 22 BR INKMAN 1 1 EXTERNALS 03 LPDR 1 1 04 NSIC 1 1 23 ACRS 16 16 8RIPlES ZU)<+~

~ Zj n/e Z.aK ~/<A <C-TOTAL NUMBER OF COPIES REQUIRED'TTR 38 ENCL 36

0 lt 0't X

~ I, tl o e I I lt t II 'l e

I,t tt rIf WI I lf

'I

,I II g I l I

INDIANA II MICHIGAN POWER COMPANY P. O. BOX 18 BOWLING GREEN STATION NEW YORK, N. Y. 10004 March 7, 1979 AEP:NRC:00129 Donald C. Cook Nuclear Plant Unit No. 1 Docket No.:50-315 License No: DPR-58 REGULATORY DOCKET FILE COPY Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Denton:

This letter is in response to Mr. A. Schwencer's letter of January 3, 1979, wherein we were requested to submit Technical Specifications to change the isolation time of certain containment isolation valves on Unit l.

On February 3, 1978, we submitted a proposed Technical Specification for Unit 2 which would change the isolation time of the containment purge and exhaust valves to 5 seconds and better reflect our response to Question 022.4 contained in Appendix Q of our FSAR. Please be advised that in the response to the NRC letter of November 28, 1978, entitled, "Containment Purging During Normal Plant Operation", submitted on January 4, 1979 we incorporated into Unit l,by reference, our February 3, 1978 sub-mittal. Your staff's review of the fuel handling accident inside contain-ment can be completed based on our January 4, 1979 submittal for both Units 1 and 2.

T he attachment to this letter contains a proposed Technical Specifi-cation change for Unit 1 in accordance with the evaluation of a postulated 1 fuel handling accident inside containment, as requested by Mr. Schwencer.

We are requesting that the isolation time'or the valves listed as "Contain'-

ment Purge and Exhaust Valves" under item C of table 3.6.1 of Specification 3/4.6.3.1 be changed from 10 seconds to 5 seconds. In addition, it has been noted with this revised Technical Specification that only one purge air inlet path (two valves in series) and one purge outlet path (two valves in series) are to be open at any given time while in Modes 1, 2, 3 and 4. The reason for this additional change is for consistency with information pre-sented in our response to Question 022.4 which was also made applicable (1 to Unit 1 by reference in our January 4, 1979 letter.

n.ac a.c-G

' C tt l~

Mr. Harold RE Denton AEP:NRC:00129 This Technical Specification change request has been reviewed by both the PNSRC and the required membership of the AEPSC NSORC , in accordance with the appropriate provisions of our Technical Specifications.

The result of these reviews indicates that the subject Technical Speci-fication change will not adversely affect the health and safety of the public.

This Technical Specification change request has only minor signifi-cance and is being submitted at the request of the NRC to supplement pre-viously transmitted information. Pursuant to the provisions of 10 CFR Part 170, no fee accompanies this submittal.

Very tru'ly yours, RED:em R. E. Oisbrow Vice President Sworn and subscribed to before me this ~'" day of March, 1979 in New York County, New York Notary Public cc!h.l'. 4 il) 'h.w '(6," cL;(,n"./

CC: Cal 1 en I a P. W. Stekete'e G. Charnoff R. Walsh R. J. Vollen R. W. Jurgensen D. V. Shaller-Bridgman

TABLE 3.6-1 Continur.d TESTABLE DURING ISOLATION TIME .

VALVE NUMBER FUNCTION PLANT OPERATION It) SECOt<DS

• • C. CONTAINMENT PURGE AND EXIIAUST Cont inuedg

12. VCR-205 Upper Comp. Purge Air Inlet Yes

13. VCR-206 Upper iump. Purge hir Outlet Yes

14. VCR-207* Cont. Press Relief Fan Isolation Yes D. I4)tIIIAI. ISOLATION VALVES

l. ICH-1 1 1 RIIR to RC Cold Legs Yes tN

2. I Ctl-129 RIIR Inlet to P<m>ps t)o tIA

3. ICH-250 Boron Inject)on Inlet Yes t,'h ICH-251 Boron Injection Inlet Yes tlh

5. ICtl-260 Sa fe ty Inj ec ti on Inl et Yes tN

6. ICH-265 Safety Irr]ection In'l et Y<t Service Air llo tN

15. SF-151 Refrreling Watr.r Supply Yes tN

16. SI'-153 Refuel lnrl I(a ter Srrtrply Yes tN

17. SF-159 R<<frrelirrg Cavity i>rain to Purification System les tN

10. SF-160 R<<frrelirrg Cavity l)rain to Purification System Y<<s tN

19. SI-171 Safety Injection Test L)ne Yes NA

20. S!-172 Accumulator Test Line Y<<.s IN

• • Only. one purge inlet path and one purge outlet path orany be opened in Modes l, 2, 3, and 4.

TABLE .3.6-1 Continued TESTABLE DURING ISOI.ATION TIMF.

VALVE NUMBER FUNCTION PLANT OPERATIOII Itt SECONDS PIIASE "0" ISOLATION Continued

37. WCR-961 tlf:SW to Instr. Rm. East Vent Yes 10

30. 'CR-963 tlESW fro>>i Instr. Rm. West Vent Yes 10

39. IICR-9C5 tff'.Slt to Instr. Rrn. Fast Vent Yes 10

40. WCR-967 tlf:S> Lower Contalniiient Vent El Yes 10 WCI,'-906 tff:SII fvoi>> Lower Contain>>ierit Vent //2 Yes 10

43. HCII-910 tff;SII. fin>>i I owLr Coiitaitll>>Lnt Vent //3 Yes 1(l nn. wcR-91n NI.SII froi>> Lower Contaii>>iieiit Vent //4 Yes 10 45 iICR-922 tll:Sll fr.o>>i Upi)ev Cnr)ta fr>>')Lrrt Vent //1 Yes 10

46. WCII-926 . tICSW fvoi>> Uppev Cor) lair)i)re)it Vent //2 Yes 10

47. W('.ll-930 tlLSII froi>> Ul)per Coiitaiiu>>ent Vent //I Yes 10

40. WCR-934 tff:.SW f'voiii Upi)er Co>>tairm)L)rt Verit //4 Yes .10

49. IICR-96)2 IIESII fro>>i liistrii>>ieill. Roni>> Cast Vent Yes 10

50. IICfl-966 tlLSll fr'oiA Iiistru>>ieiit Rnolll Hest Vent Yes 10 C. CottTAI tlt<ENT. PURGE AND EXIIhuST

1. VCR-101 Instr. Rooi>> Purge Air Inlet Yes

2. VCR-102 Iris tv. Rooirr Purge hir Outlet Yes

3. VCR-103 Lower Co>>ip. Purge hir Inlet Yes VCR-104 l.ower Cor)rp. Purge Air 0<<tlet Yes

5. VCR-105 Upper Col>>p. Prrr'lie hir Inlet Yes

6. VCR-106 Upper Co>>lp. Pi>>ge hir Oiitlet Yes

7. VCR-107 Corit. P).Lss. Relief Fan Isolation Yes

0. VCR-"01 Iris(.r . Itoi>>n I'i>> ge hir liilrit Yes

9. VCR-202 f>>s tr ..Bor)>>) I ui ge h) l'l)ll e't Yes

10. VCR-203 Li)wL'v Coi>>p. I'll)')rL A I i'rl 1 et Yes

11. VCR-204 l.()iiev Co>>rp. I)r>>'lie hir Oiitlet Yes Only one purge inlet path and one puvge outlet path))my be opened in Modes 1, 2, 3 and 4.

0 v

) 1 r.