ML17037C758: Difference between revisions

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{{#Wiki_filter:NMPNS-2 TABLE 7 2-1 (CONT'D)Line Isolated Instrument sensing line (not part of protection system)Service air to drywell Number of Lines As required Approximate Pipe Size, Valves Per Line rou Valve Location Relative to Primary~natl ment Outside Outside Inside Outside Valve snd/or Operator XZpe~g Flow check Hand Hand Hand Power to OR~en,6)Spring Hand Hand Hand Power to~C1,6)Hand Hand Hand Isolati.on
{{#Wiki_filter:NMPNS-2 TABLE 7 2-1 (CONT'D)
~SX 1 Excess flow RM Closing Normal~Time 7,11,12)Status(9,lO)
Valve Location Number    Approximate Valves      Relative to   Valve snd/or of       Pipe Size, Per         Primary        Operator          Power to    Power  to  Isolati.on    Closing        Normal Line Isolated              Lines                  Line rou ~natl   ment     XZpe~g               OR~en,6) ~C1,6)     ~SX   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      RM                            Open)        instrument lines which IAS system)                                                                                                                                                        )        do not form pszt, of
Open)Open)))Closed Closed emarks Typical of Class B instrument lines which IAS do not form pszt, of protection system Only need during maintenance iA5 Instrument gas to drywell Reactor Bldg.closed loop cooling water in Reactor Bldg.closed loop cooling water out Demineralized water in Drywell purge inlet Drywell main exhaust Drywell exhaust bypass Later 14 3-6 3-8 30 30 Inside Outside Outside Inside Outside Insid.e Inside Outside Inside Outside Inside Outside Outside Check AO MO Check MO MO Check MO AO butterfly AO butterfly AO butterfly AO butterfly AO Air/A-c D" c D-c A"c A-c A-c/Air A-c/Air A-c/Air A-c/Ai.r Process Spring D-c Process D"c A-c Process A-c Spring Spring Spring Spring Spring Reverse flow RM RM Reverse flow Reverse flow RM ApF~Z AiF,Z A,F,Z Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard Open Open Open Open Open Open Closed Closed.Closed Closed Closed Closed Closed iAS AS[AS IAS Suppression chamber purge inlet Suppression chamber exhaust valve bypass 24 Inside Outside Outside AO butterfly AO butterfly AO A-c/Air A-c/Air Spring Spring Spring A,FiZ A,FpZ Standard.Standard Standard Closed Closed Closed Suppression chamber main exhaust Drywell air sample Suppression chamber air sample 1/2 1/2 Inside Outside Inside Outside Inside Outside AO butteri'ly AO butterfly SO valve SO valve SO valve SO valve A-c/Air A-c/Air A-c D-c A-c D-c Spring Spring Spring Spring Spring Spring A,F,Z A~FEZ AiF,Z Standard Standard Closed Closed Open Open Open Open)AS iAS 4of6}}
                                                                                                                                                                  )        protection system Service  air to drywell                                              Inside      Hand              Hand        Hand                                    Closed      Only need during Outside      Hand              Hand        Hand                                    Closed        maintenance           iA5 Instrument gas   to             Later                                Inside      Check                          Process    Reverse flow                  Open iAS drywell                                                             Outside      AO                Air/A-c      Spring    RM            Standard      Open Reactor Bldg. closed               14          3-6                    Outside      MO                D" c        D-c        RM            Standard      Open loop cooling water in                                               Inside      Check                          Process    Reverse  flow                Open AS Reactor Bldg. closed                           3-8                    Outside      MO                D-c          D"c                      Standard      Open loop cooling water out                                               Insid.e     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    ApF~Z          Standard      Closed                                [AS Outside      AO butterfly      A-c/Air     Spring                    Standard      Closed Drywell main exhaust                            30                    Inside      AO butterfly      A-c/Air     Spring    AiF,Z          Standard      Closed                                IAS Outside      AO butterfly      A-c/Ai.r     Spring                   Standard      Closed Drywell exhaust bypass                                                Outside      AO                              Spring     A,F,Z         Standard       Closed Suppression chamber purge                       24                   Inside       AO butterfly       A-c/Air     Spring    A,FiZ          Standard.      Closed inlet                                                              Outside      AO butterfly      A-c/Air     Spring                   Standard      Closed Suppression  chamber exhaust                                        Outside      AO                              Spring     A,FpZ         Standard       Closed valve bypass Suppression   chamber main                                           Inside       AO butteri'ly     A-c/Air     Spring    A,F,Z          Standard      Closed exhaust                                                              Outside      AO butterfly      A-c/Air     Spring                    Standard      Closed Drywell  air sample                            1/2                  Inside      SO valve          A-c         Spring                                  Open Outside        valve          D-c                                                                                         )AS SO                              Spring                                  Open Suppression chamber                            1/2                  Inside      SO valve          A-c         Spring    A~FEZ                        Open                                  iAS air  sample                                                          Outside      SO valve          D-c         Spring     AiF,Z                         Open 4of6}}

Latest revision as of 08:57, 30 October 2019

Table 7.2-1 (Cont'D) 4 of 6
ML17037C758
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: ML17037C758 (1)
v • d • e


Text

NMPNS-2 TABLE 7 2-1 (CONT'D)

Valve Location Number Approximate Valves Relative to Valve snd/or of Pipe Size, Per Primary Operator Power to Power to Isolati.on Closing Normal Line Isolated Lines Line rou ~natl ment XZpe~g OR~en,6) ~C1,6) ~SX 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 RM Open) instrument lines which IAS system) ) do not form pszt, of

) protection system Service air to drywell Inside Hand Hand Hand Closed Only need during Outside Hand Hand Hand Closed maintenance iA5 Instrument gas to Later Inside Check Process Reverse flow Open iAS drywell Outside AO Air/A-c Spring RM Standard Open Reactor Bldg. closed 14 3-6 Outside MO D" c D-c RM Standard Open loop cooling water in Inside Check Process Reverse flow Open AS Reactor Bldg. closed 3-8 Outside MO D-c D"c Standard Open loop cooling water out Insid.e 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 ApF~Z Standard Closed [AS Outside AO butterfly A-c/Air Spring Standard Closed Drywell main exhaust 30 Inside AO butterfly A-c/Air Spring AiF,Z Standard Closed IAS Outside AO butterfly A-c/Ai.r Spring Standard Closed Drywell exhaust bypass Outside AO Spring A,F,Z Standard Closed Suppression chamber purge 24 Inside AO butterfly A-c/Air Spring A,FiZ Standard. Closed inlet Outside AO butterfly A-c/Air Spring Standard Closed Suppression chamber exhaust Outside AO Spring A,FpZ Standard Closed valve bypass Suppression chamber main Inside AO butteri'ly A-c/Air Spring A,F,Z Standard Closed exhaust Outside AO butterfly A-c/Air Spring Standard Closed Drywell air sample 1/2 Inside SO valve A-c Spring Open Outside valve D-c )AS SO Spring Open Suppression chamber 1/2 Inside SO valve A-c Spring A~FEZ Open iAS air sample Outside SO valve D-c Spring AiF,Z Open 4of6

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