ML17037C692: Difference between revisions

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| number = ML17037C692
| number = ML17037C692
| issue date = 02/06/2017
| issue date = 02/06/2017
| title = Nine Mile Point, Unit 2 - Table 7.2-1 (Cont'D) 4 of 6
| title = Table 7.2-1 (Cont'D) 4 of 6
| author name =  
| author name =  
| author affiliation = Niagara Mohawk Power Corp
| author affiliation = Niagara Mohawk Power Corp
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=Text=
=Text=
{{#Wiki_filter:NMPNS-2TABLE7.2-1(CONT'D)LineIsolatedInstrumentsensingline(notpartofprotectionsystem)NumberofLinesAsrequiredApproximatePipeSize,In~ValvesPerLine~GrouValveLocationRelativetoPrimaryContainmentOutsideOutsideValveand/orOperatoreM3FlowcheckHandPowertoOpe~n,6)SpringHandPowerto~cc,c)HandIsolation1ExcessflowClosingNormal~Time7,11,12)Status(9,lO)Open)Open)))emarksTypicalofClassBinstrumentlineswhich)ASdonotformpartofprotectionsystemServiceairtodrywellInstrumentgsstodrywellReactorBldg.closedloopcoolingwaterinReactorBldg.closedloopcoolingwateroutDemineralizedwaterinDrywellpurgeinletDrywellmainexhaustDrywellexhaustbypassLater3-63-83030BBBBBBInsideOutsideInsideOutsideOutsideInsideOutsideInsideInsideOutsideInsideOutsideInsid.eOutsideOutsideHandHand.CheckAOMOCheckMOMOCheckMOAObutterflyAObutterflyAObutterflyAObutterflyAOHandHandAir/A-cD-cD-cA-cA-cA-c/AirA-c/AirA-c/AirA-c/AirA-cHendHandProcessSpringD-cProcessD-cA-cProcessA-cSpringSpringSpringSpringSpringReverseflowRMRMReverseflowReverseflowRMA>FA,FA>FA,FA,FStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardClosedClosedOpenOpenOpenOpenOpenOpenClosedClosedClosedClosedClosedClosedClosedOnlyneedduringmaintenance)ASAs[AS(ASSuppressionchamberpurgeinletSuppressionchamberexhaust1valvebypassInsideOutsideOutsideAObutterflyAObutterflyAOA-c/AirA-c/AirA-cSpringSpringSpringA,FA,FA>FStandardStandardStandardClosedClosedClosedSuppressionchambermainexhaustDrywellairsampleSuppressionchamberairsample1/21/2BBBBInsideOutsideInsia.eOutsideInsideOutsideAObutterflyAObutterflySOvalveSOvalveSOvalveSOvalveA-c/AirA-c/AirA-cD-cA-cD-cSpringSpringSpringSpringSpringSpringA,FA>FA>FA,FA,FA>FStandardStandardClosedClosedOpenOpenOpenOpeniAS(AShof6
{{#Wiki_filter:NMPNS-2 TABLE  7.2-1 (CONT'D)
}}
Valve Location Number    Approximate Valves        Relative to    Valve and/or of      Pipe Size, Per            Primary        Operator          Power to    Power  to  Isolation    Closing        Normal Line Isolated                Lines          In ~   Line  ~Grou  Containment          eM3              Ope~n,6) ~cc,c)           1      ~Time 7,11,12) Status(9,lO)         emarks Instrument sensing line        As  required                              Outside      Flow check          Spring                Excess  flow                  Open)       Typical of Class B (not part of protection                                                Outside      Hand                Hand        Hand                                    Open)         instrument lines which )AS
                                                                                                                                                                    )        do not form part of system)
                                                                                                                                                                    )       protection system Service  air to drywell                                          B      Inside      Hand                Hand        Hend                                    Closed      Only need during B      Outside      Hand.               Hand        Hand                                    Closed        maintenance Instrumentgss    to              Later                                  Inside      Check                          Process    Reverse flow                  Open                                )AS drywell                                                                Outside      AO                  Air/A-c    Spring    RM            Standard      Open Reactor Bldg. closed                          3-6              B      Outside      MO                  D-c        D-c        RM            Standard      Open loop cooling water  in                                        B      Inside      Check                          Process    Reverse flow                  Open As Reactor Bldg. closed                          3-8              B      Outside      MO                  D-c         D-c                       Standard      Open loop cooling water out                                          B      Inside      MO                  A-c         A-c                       Standard      Open Demineralized water in                                                  Inside      Check                          Process    Reverse  flow                Closed Outside      MO                  A-c        A-c        RM            Standard      Closed Drywell purge    inlet                          30                      Inside      AO  butterfly      A-c/Air    Spring    A>F            Standard      Closed                                [AS Outside      AO  butterfly      A-c/Air    Spring    A,F            Standard      Closed Drywell main exhaust                            30                      Ins id.e    AO  butterfly      A-c/Air    Spring    A>F            Standard      Closed                                (AS Outside      AO  butterfly      A-c/Air    Spring    A,F            Standard      Closed Drywell exhaust bypass                                                  Outside      AO                  A-c        Spring    A,F            Standard      Closed Suppression chamber purge                                              Inside      AO  butterfly      A-c/Air    Spring    A,F            Standard      Closed inlet                                                                Outside      AO  butterfly      A-c/Air    Spring    A,F            Standard      Closed Suppression  chamber exhaust      1                                  Outside      AO                  A-c        Spring    A>F            Standard      Closed valve bypass Suppression  chamber main                                              Inside      AO  butterfly      A-c/Air    Spring    A,F            Standard      Closed exhaust                                                                Outside      AO  butterfly      A-c/Air    Spring    A>F            Standard      Closed Drywell  air  sample                            1/2            B      Ins ia.e    SO valve          A-c        Spring    A>F                          Open valve          D-c                                                                                        iAS B      Outside      SO                            Spring    A,F                          Open Suppression  chamber                            1/2            B      Inside      SO valve          A-c        Spring    A,F                          Open (AS air  sample                                                    B      Outside      SO valve          D-c        Spring    A>F                          Open hof6}}

Latest revision as of 08:57, 30 October 2019

Table 7.2-1 (Cont'D) 4 of 6
ML17037C692
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 02/06/2017
From:
Niagara Mohawk Power Corp
To:
Office of Nuclear Reactor Regulation
References
Download: ML17037C692 (1)
v • d • e


Text

NMPNS-2 TABLE 7.2-1 (CONT'D)

Valve Location Number Approximate Valves Relative to Valve and/or of Pipe Size, Per Primary Operator Power to Power to Isolation Closing Normal Line Isolated Lines In ~ Line ~Grou Containment eM3 Ope~n,6) ~cc,c) 1 ~Time 7,11,12) Status(9,lO) emarks Instrument sensing line As required Outside Flow check Spring Excess flow Open) Typical of Class B (not part of protection Outside Hand Hand Hand Open) instrument lines which )AS

) do not form part of system)

) protection system Service air to drywell B Inside Hand Hand Hend Closed Only need during B Outside Hand. Hand Hand Closed maintenance Instrumentgss to Later Inside Check Process Reverse flow Open )AS drywell Outside AO Air/A-c Spring RM Standard Open Reactor Bldg. closed 3-6 B Outside MO D-c D-c RM Standard Open loop cooling water in B Inside Check Process Reverse flow Open As Reactor Bldg. closed 3-8 B Outside MO D-c D-c Standard Open loop cooling water out B Inside MO A-c A-c Standard Open Demineralized water in Inside Check Process Reverse flow Closed Outside MO A-c A-c RM Standard Closed Drywell purge inlet 30 Inside AO butterfly A-c/Air Spring A>F Standard Closed [AS Outside AO butterfly A-c/Air Spring A,F Standard Closed Drywell main exhaust 30 Ins id.e AO butterfly A-c/Air Spring A>F Standard Closed (AS Outside AO butterfly A-c/Air Spring A,F Standard Closed Drywell exhaust bypass Outside AO A-c Spring A,F Standard Closed Suppression chamber purge Inside AO butterfly A-c/Air Spring A,F Standard Closed inlet Outside AO butterfly A-c/Air Spring A,F Standard Closed Suppression chamber exhaust 1 Outside AO A-c Spring A>F Standard Closed valve bypass Suppression chamber main Inside AO butterfly A-c/Air Spring A,F Standard Closed exhaust Outside AO butterfly A-c/Air Spring A>F Standard Closed Drywell air sample 1/2 B Ins ia.e SO valve A-c Spring A>F Open valve D-c iAS B Outside SO Spring A,F Open Suppression chamber 1/2 B Inside SO valve A-c Spring A,F Open (AS air sample B Outside SO valve D-c Spring A>F Open hof6

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