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| issue date = 08/13/1984
| issue date = 08/13/1984
| title = Forwards Suppl 2 to App R Evaluation of Auxiliary Bldg HVAC Duct Penetration & Containment Seismic Gaps, Providing Justification for Technical Exemptions Requested in 840615 Ltr
| title = Forwards Suppl 2 to App R Evaluation of Auxiliary Bldg HVAC Duct Penetration & Containment Seismic Gaps, Providing Justification for Technical Exemptions Requested in 840615 Ltr
| author name = ALEXICH M P
| author name = Alexich M
| author affiliation = INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
| author affiliation = INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
| addressee name = DENTON H R
| addressee name = Denton H
| addressee affiliation = NRC OFFICE OF NUCLEAR REACTOR REGULATION (NRR)
| addressee affiliation = NRC OFFICE OF NUCLEAR REACTOR REGULATION (NRR)
| docket = 05000315, 05000316
| docket = 05000315, 05000316
Line 14: Line 14:
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE, UTILITY TO NRC
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE, UTILITY TO NRC
| page count = 6
| page count = 6
| project =
| stage = Other
}}
}}


=Text=
=Text=
{{#Wiki_filter:REGULATORY INFORMATION DISTRIBUTION STEM(BIOS)ACCESSION NBR8408170322, DOC~DATE84/08/13NOTARIZED, NO'OCKETFACIL:50'15 DonaldC,CookNuclearPowerPlantiUnit1~Indiana-80500031550-316DonaldC~CookNuclearPowerPlanti,,Uni t2<IndianaF~05000516AUTH~NAME"AUTHORAFFILIATION ALEXICH~M,P, Indiana8MichiganElectricCo,'RECIP~N'AME~RECIPIENT AFFIL1ATIONDENTON~H~R~OfficeofNuclearReactor.Regulationi Director
{{#Wiki_filter:REGULATORY INFORMATION DISTRIBUTION           STEM (BIOS)
ACCESSION NBR      8408170322, DOC DATE 84/08/13 NOTARIZED, NO
                                        ~                                            'OCKET FACIL:50'15 Donald C, Cook Nuclear Power Planti Unit 1~ Indiana- 8 05000315 50-316 Donald C Cook Nucl ear Power Pl anti,,Uni t 2< Indiana
                              ~                                                   F~   05000516 AUTH NAME" AUTHOR AFFILIATION
        ~
ALEXICH~M,P,           Indiana 8 Michigan Electric Co,
  'RECIP N'AME~
          ~                RECIPIENT AFFIL 1 ATION DENTON~H R  ~ ~       Office of Nuclear Reactor. Regulationi Director


==SUBJECT:==
==SUBJECT:==
Forwards'Suppl,2.DuctPehetr ationJustification foltr,DISTRIBUTION CODEsA006STITLE:ORSubmittal:
Forwards 'Suppl, 2 to,"AppR Evaluation of Auxi l i,any. Bl dg HVAC
FireNOTES:OL~10/25/74OL.12/23/72to,"AppR Evaluation Containment Seismir*technical exemption COPIESRECEIVED:LTR Protection ofAuxili,any.BldgHVACcGaps~".providingsrequested in840615o<~'NCL'ZE;0500031505000316RECIPIENT IDCODE'/NAME>>
              . DuctPehetr ation    Containment Seismi c Gaps~ ". provi ding DISTRIBUTION Justification fo technical exemption s requested in 840615 ltr, CODE s  A006S r*
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TITLE:     OR  Submittal: Fire Protection NOTES:                                                                                 05000315 OL ~ 10/25/74 05000316 OL. 12/23/72 RECIPIENT          COPIES            RECIPIENT            COPIES ID CODE'/NAME>>     LTTR ENCL      ID CODE/NAME         LTTR ENCL NRR ORB1    BC  01    3    3 INTERNAL:    ADM LFMB                1    0      ELO/HOS3                1    0 IE FILE          06    1    1      IE/WHITNEYg L            1    1 EXTERNALS NRR F IORAYANT07            2    2      NRR 1>>IFAMBACH           1    0 EB    09    2    2      NRR/DL  D IR            1 REG F L          04    1    1     RGN3                    1     1
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INDIANA8MICHIGANELECTRICCOMPANYP.O.BOX16631COLUMBUS, OHIO43216August13,1984AEP:NRC:0692U DonaldC.CookNuclearPlantUnitNos.1and2DocketNos.50-315and50-316LicenseNos.DPR-48andDPR-74APPENDIXRTECHNICAL EXEMPTION FORSEISMICGAPSANDHVACDUCTPENETRATIONS Mr.HaroldR.Denton,DirectorOfficeofNuclearReactorRegulation U.S.NuclearRegulatory Commission Washington, D.C.20555


==DearMr.Denton:==
                                                                                                                        >>cpr    '      tv. '              (
InourJune15,1984lettertoyouwerequested technical exemption fortwoareasof10CFR50AppendixR.Theseareasinclude(1)ventilation ductpenetrations notsuppliedwithfiredampers,and(2)seismicgapsbetweenthecontainment andauxiliary buildings.
r' r r r >>>f ~  '(
AttachedisSupplement 2totheMaroh3,1983,Reportentitled"SafeShutdownCapability Assessment andProposedModifications" fortheD.C.CookNuclearPlant.Thissupplement, preparedbyourConsultant Engineering PlanningandManagement, Inc.(EPM),isadetailedengineering evaluation whichprovidesjustification forthetechnical exemptions requested inourJune15,1984letter.Thefollowing summarizes thefindingsoftheattachedevaluation.
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VENTILATION DUCTS:Theevaluation concludes that;,becauseofalowcombustible loadingoflessthan15minutesinallapplicable fireareas/zones, thelocationofsafeshutdowncomponents/circuits andthedetection andsuppression systemsavailable inthesubjectfirearea/zones, adequateprotection fromductrelatedfiredamageisprovidedandsafeshutdowncapability isensured.Asdiscussed withyourstaff,theevaluation includesfiveadditional ventilation ductpenetrations withoutfiredampers,thatalsorequiretechnical exemptions.
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Theseductpenetrations listedbelowwerenotidentified intheJune15,1984letter.No.ofSizeof28"x34"22"x34"44"x24"650~50633'uxiliary BldgAuxiliary BldgAuxiliary Bldg8408i70322 8408i3PDRADOCK0500031'5 IFPDR
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Mr.HaroldR.DentonAEP:NRC:0692USEISMICGAPS:Theevaluation concludes that,becauseofthedistancebetweenfireareas/zones, lowcombustible loading,thelocationofcombustible loadingand/orthepresenceofdetection andsuppression systemswithintheareas/zones, theseismicgapscanbeleftasdiscussed inthereportwithoutcompromising thecapability oftheplanttobesafelyshutdownintheeventofafire.Inaddition, inourJune15,1980letterwecommitted toreviewwhethertheanalysesperformed toshowthattheauxiliary buildingwouldnotbeaffectedbytheconsequences ofHighEnergyLineBreakstookcreditforavailable reliefareaassociated withseismicgaps.Thisreviewhasshownthattheseanalysesdidnottakecreditfortheseismicgaps.However,thegapswereconsidered inthestructural analysis.
                                                                                            >>r l(.~~,. ~
Thisletterhasbeenpreparedfollowing Corporate procedures whichincorporate areasonable setofcontrolstoinsureitsacouracyandcompleteness priortosignature bytheundersigned.
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INDIANA 8 MICHIGAN ELECTRIC COMPANY P.O. BOX 16631 COLUMBUS, OHIO 43216 August 13, 1984 AEP:NRC:0692U Donald C. Cook Nuclear Plant Unit Nos. 1 and 2 Docket Nos. 50-315 and 50-316 License Nos. DPR-48 and DPR-74 APPENDIX R TECHNICAL EXEMPTION FOR SEISMIC GAPS AND HVAC DUCT PENETRATIONS Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555
 
==Dear Mr. Denton:==
 
In our June 15, 1984 letter to you we requested technical exemption for two areas of 10 CFR 50 Appendix R. These areas include (1) ventilation duct penetrations not supplied with fire dampers, and (2) seismic gaps between the containment and auxiliary buildings.
Attached  is Supplement 2 to the Maroh 3, 1983, Report entitled "Safe Shutdown  Capability Assessment and Proposed Modifications" for the D. C.
Cook Nuclear Plant. This supplement, prepared by our Consultant Engineering Planning and Management, Inc. (EPM), is a detailed engineering evaluation which provides justification for the technical exemptions requested in our June 15, 1984 letter. The following summarizes the findings of the attached evaluation.
VENTILATION DUCTS: The evaluation concludes that;, because of a low combustible loading of less than 15 minutes in all applicable fire areas/zones, the location of safe shutdown components/circuits and the detection and suppression systems available in the subject fire area/zones, adequate protection from duct related fire damage is provided and safe shutdown capability is ensured. As discussed with your staff, the evaluation includes five additional ventilation duct penetrations without fire dampers, that also require technical exemptions. These duct penetrations listed below were not identified in the June 15, 1984 letter.
No. of                  Size  of 28" x 34" 22" x 34"           633'uxiliary 650~
50 Bldg Auxiliary Bldg 44" x 24"                           Auxiliary Bldg 8408i70322 8408i3 PDR ADOCK    0500031'5     I F                  PDR
 
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Mr. Harold R. Denton                                            AEP: NRC: 0692U SEISMIC GAPS:   The  evaluation concludes that, because of the distance between  fire areas/zones,   low combustible loading, the location of combustible loading and/or the presence of detection and suppression systems within the areas/zones, the seismic gaps can be left as discussed in the report without compromising the capability of the plant to be safely shutdown in the event of a fire.
In addition, in our June 15, 1980 letter we committed to review whether the analyses performed to show that the auxiliary building would not be affected by the consequences of High Energy Line Breaks took credit for available relief area associated with seismic gaps. This review has shown that these analyses did not take credit for the seismic gaps.
However, the gaps were considered in the structural analysis.
This letter  has been prepared  following Corporate procedures which incorporate  a reasonable  set of controls to insure  its acouracy and completeness prior to signature by the undersigned.
Very  truly yours, M  P. Al ich  g~J, Vice Pr sident ~(~55 MFA/cm Attachments cc:   John E. Dolan M. G. Smith, Jr.
R. C. Callen G. Charnoff E. R. Swanson, NRC  Resident Inspector  - Bridgman
 
I  r' h
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          ~ (
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Latest revision as of 01:59, 4 February 2020

Forwards Suppl 2 to App R Evaluation of Auxiliary Bldg HVAC Duct Penetration & Containment Seismic Gaps, Providing Justification for Technical Exemptions Requested in 840615 Ltr
ML17326B143
Person / Time
Site: Cook  American Electric Power icon.png
Issue date: 08/13/1984
From: Alexich M
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To: Harold Denton
Office of Nuclear Reactor Regulation
Shared Package
ML17326B144 List:
References
AEP:NRC:0692U, AEP:NRC:692U, NUDOCS 8408170322
Download: ML17326B143 (6)
v • d • e


Text

REGULATORY INFORMATION DISTRIBUTION STEM (BIOS)

ACCESSION NBR 8408170322, DOC DATE 84/08/13 NOTARIZED, NO

~ 'OCKET FACIL:50'15 Donald C, Cook Nuclear Power Planti Unit 1~ Indiana- 8 05000315 50-316 Donald C Cook Nucl ear Power Pl anti,,Uni t 2< Indiana

~ F~ 05000516 AUTH NAME" AUTHOR AFFILIATION

~

ALEXICH~M,P, Indiana 8 Michigan Electric Co,

'RECIP N'AME~

~ RECIPIENT AFFIL 1 ATION DENTON~H R ~ ~ Office of Nuclear Reactor. Regulationi Director

SUBJECT:

Forwards 'Suppl, 2 to,"AppR Evaluation of Auxi l i,any. Bl dg HVAC

. DuctPehetr ation Containment Seismi c Gaps~ ". provi ding DISTRIBUTION Justification fo technical exemption s requested in 840615 ltr, CODE s A006S r*

COPIES RECEIVED:LTR 'NCL o<

'ZE;

~

TITLE: OR Submittal: Fire Protection NOTES: 05000315 OL ~ 10/25/74 05000316 OL. 12/23/72 RECIPIENT COPIES RECIPIENT COPIES ID CODE'/NAME>> LTTR ENCL ID CODE/NAME LTTR ENCL NRR ORB1 BC 01 3 3 INTERNAL: ADM LFMB 1 0 ELO/HOS3 1 0 IE FILE 06 1 1 IE/WHITNEYg L 1 1 EXTERNALS NRR F IORAYANT07 2 2 NRR 1>>IFAMBACH 1 0 EB 09 2 2 NRR/DL D IR 1 REG F L 04 1 1 RGN3 1 1

'ACRS 11 3 3 LPOR 03 2 2 NRC PDR 02 1 1 NSIC 05 1 NTIS 1 1 lO TOTAL NUMBER OF COPIES REQUIRED: LTTR 23 ENCL

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INDIANA 8 MICHIGAN ELECTRIC COMPANY P.O. BOX 16631 COLUMBUS, OHIO 43216 August 13, 1984 AEP:NRC:0692U Donald C. Cook Nuclear Plant Unit Nos. 1 and 2 Docket Nos. 50-315 and 50-316 License Nos. DPR-48 and DPR-74 APPENDIX R TECHNICAL EXEMPTION FOR SEISMIC GAPS AND HVAC DUCT PENETRATIONS Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Denton:

In our June 15, 1984 letter to you we requested technical exemption for two areas of 10 CFR 50 Appendix R. These areas include (1) ventilation duct penetrations not supplied with fire dampers, and (2) seismic gaps between the containment and auxiliary buildings.

Attached is Supplement 2 to the Maroh 3, 1983, Report entitled "Safe Shutdown Capability Assessment and Proposed Modifications" for the D. C.

Cook Nuclear Plant. This supplement, prepared by our Consultant Engineering Planning and Management, Inc. (EPM), is a detailed engineering evaluation which provides justification for the technical exemptions requested in our June 15, 1984 letter. The following summarizes the findings of the attached evaluation.

VENTILATION DUCTS: The evaluation concludes that;, because of a low combustible loading of less than 15 minutes in all applicable fire areas/zones, the location of safe shutdown components/circuits and the detection and suppression systems available in the subject fire area/zones, adequate protection from duct related fire damage is provided and safe shutdown capability is ensured. As discussed with your staff, the evaluation includes five additional ventilation duct penetrations without fire dampers, that also require technical exemptions. These duct penetrations listed below were not identified in the June 15, 1984 letter.

No. of Size of 28" x 34" 22" x 34" 633'uxiliary 650~

50 Bldg Auxiliary Bldg 44" x 24" Auxiliary Bldg 8408i70322 8408i3 PDR ADOCK 0500031'5 I F PDR

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Mr. Harold R. Denton AEP: NRC: 0692U SEISMIC GAPS: The evaluation concludes that, because of the distance between fire areas/zones, low combustible loading, the location of combustible loading and/or the presence of detection and suppression systems within the areas/zones, the seismic gaps can be left as discussed in the report without compromising the capability of the plant to be safely shutdown in the event of a fire.

In addition, in our June 15, 1980 letter we committed to review whether the analyses performed to show that the auxiliary building would not be affected by the consequences of High Energy Line Breaks took credit for available relief area associated with seismic gaps. This review has shown that these analyses did not take credit for the seismic gaps.

However, the gaps were considered in the structural analysis.

This letter has been prepared following Corporate procedures which incorporate a reasonable set of controls to insure its acouracy and completeness prior to signature by the undersigned.

Very truly yours, M P. Al ich g~J, Vice Pr sident ~(~55 MFA/cm Attachments cc: John E. Dolan M. G. Smith, Jr.

R. C. Callen G. Charnoff E. R. Swanson, NRC Resident Inspector - Bridgman

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