ML17037C785: Difference between revisions

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{{#Wiki_filter:NMPNS-2 TABLE 7.2-1 (CONTtD)Line Isolated Instrument sensing line (not part of protection system)Service air to drywell Number of Lines As required Approximate Pipe Size, In.Valves Per Line~Grou B B Valve Location Relative to Primary~tt t Outside Outside Inside Outside Valve and/or Operator~xpe~6 Flow check Hand Check AO Power to~en tj>6)Spring Hand, Air/A-c Power to~ci Hand Process Spring Isolation~SS 1 Excess flow RM Reverse flow RM Standard Open Open Closing Normal~TŽe 7 11,12)Status(9,IO)
{{#Wiki_filter:NMPNS-2 TABLE 7.2-1 (CONTtD)
Open)Open)))emarks Typical of Class B instrument lines which do not form part of protection system Instrument air to drywell Reactor Bldg.closed loop cooling water in Later Inside Outside Outside Check AO MO Air/A-c A-c Process Spring A-c Reverse flow RM Standard Standard Open Open Open Reactor Bldg.closed loop cooling water out Demineralized water in Drywall purge inlet Drywell main exhaust Drywell exhaust bypass 24 B B B B B B Ihltside Inside Outside Ins id.e Outside Inside Outside Outside MO Check MO AO butterfly AO butterfly AO butterfly AO butterfly AO A-c A-c A-c/Air A-c/Air A-c/Air A-c/Air A-c Process A-c Spring Spring Spring Spring Spring Reverse flow RM A>F,Z A,F,Z A>F>Z Standard Standard Standard Standard Standard Standard Standard Open Closed Closed Closed Closed Closed Closed Closed Suppression chamber purge 1 inlet Suppression chamber exhaust 1 valve bypass Suppression chamber main exhaust Drywell air sample 24 1/2 Inside Outside Outside Inside Outside Inside Outside AO butterfly AO butterfly AO AO butterfly AO butterfly SO valve SO valve A-c/Air A-c/Air A-c A-c/Air A-c/Air A-c D-c Spring Spring Spring Spring Spring Spring Spring A>F,Z A>F>Z A,F,Z A,F,Z Standard Standard Standard Standard Standard Closed Closed Closed Closed Closed Open Open Suppression chamber air sample Inside Outside SO valve SO valve A-c D-c Spring Spring A>F>Z Open Open 4of6}}
Valve Location Number    Approximate Valves        Relative to    Valve and/or Line Isolated of Lines Pipe Size, In.
Per Line ~Grou ~ttPrimary t
Operator
                                                                                    ~xpe~6 Power
                                                                                                          ~en to tj>6)
Power
                                                                                                                        ~ci to  Isolation
                                                                                                                                    ~SS   1 Closing       Normal
                                                                                                                                                ~T'e 7 11,12) Status(9,IO)         emarks Instrument sensing line      As  required                      B        Outside    Flow check          Spring                    Excess  flow (not part of protection                                      B      Outside      Hand                Hand, Open)       Typical of Class B Hand      RM                          Open)        instrument lines which system)
                                                                                                                                                                    )      do not form part of
                                                                                                                                                                    )      protection system Service  air to drywell                                                  Inside      Check                            Process    Reverse  flow              Open Outside      AO                  Air/A-c      Spring    RM            Standard      Open Instrument   air to             Later                                   Inside     Check                            Process    Reverse  flow              Open drywell                                                                Outside     AO                 Air/A-c       Spring    RM            Standard      Open Reactor Bldg. closed                                                    Outside      MO                A-c           A-c                       Standard     Open loop cooling water in Reactor Bldg. closed                                                   Ihltside    MO                A-c                                      Standard      Open loop cooling water out Demineralized water in                                         B      Inside      Check                            Process    Reverse  flow              Closed B      Outside      MO                A-c            A-c        RM            Standard      Closed Drywall purge   inlet                         24             B       Ins id.e     AO butterfly       A-c/Air        Spring    A>F,Z          Standard      Closed B      Outside      AO butterfly      A-c/Air       Spring                    Standard      Closed Drywell main exhaust                                            B      Inside      AO butterfly      A-c/Air       Spring    A,F,Z          Standard      Closed B      Outside      AO butterfly      A-c/Air       Spring                    Standard      Closed Drywell exhaust bypass                                                  Outside      AO                A-c           Spring                   Standard A>F>Z                       Closed Suppression   chamber purge       1           24                     Inside     AO butterfly     A-c/Air         Spring    A>F,Z          Standard      Closed inlet                                                                  Outside    AO  butterfly      A-c/Air       Spring                    Standard      Closed Suppression  chamber exhaust      1                                    Outside    AO                A-c             Spring                    Standard valve bypass                                                                                                                    A>F>Z                        Closed Suppression  chamber main                                              Inside      AO  butterfly      A-c/Air         Spring    A,F,Z exhaust                                                                                                                                        Standard      Closed Outside    AO  butterfly      A-c/Air         Spring                    Standard      Closed Drywell  air  sample                          1/2                      Inside      SO  valve          A-c             Spring     A,F,Z                       Open Outside      SO  valve          D-c            Spring                                  Open Suppression   chamber                                                   Inside     SO valve         A-c             Spring     A>F>Z                       Open air  sample                                                            Outside    SO  valve          D-c            Spring                                  Open 4of6}}

Latest revision as of 07:57, 30 October 2019

Table 7.2-1 (Cont'D) 4 of 6
ML17037C785
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: ML17037C785 (1)
v • d • e


Text

NMPNS-2 TABLE 7.2-1 (CONTtD)

Valve Location Number Approximate Valves Relative to Valve and/or Line Isolated of Lines Pipe Size, In.

Per Line ~Grou ~ttPrimary t

Operator

~xpe~6 Power

~en to tj>6)

Power

~ci to Isolation

~SS 1 Closing Normal

~T'e 7 11,12) Status(9,IO) emarks Instrument sensing line As required B Outside Flow check Spring Excess flow (not part of protection B Outside Hand Hand, Open) Typical of Class B Hand RM Open) instrument lines which system)

) do not form part of

) protection system Service air to drywell Inside Check Process Reverse flow Open Outside AO Air/A-c Spring RM Standard Open Instrument air to Later Inside Check Process Reverse flow Open drywell Outside AO Air/A-c Spring RM Standard Open Reactor Bldg. closed Outside MO A-c A-c Standard Open loop cooling water in Reactor Bldg. closed Ihltside MO A-c Standard Open loop cooling water out Demineralized water in B Inside Check Process Reverse flow Closed B Outside MO A-c A-c RM Standard Closed Drywall purge inlet 24 B Ins id.e AO butterfly A-c/Air Spring A>F,Z Standard Closed B Outside AO butterfly A-c/Air Spring Standard Closed Drywell main exhaust B Inside AO butterfly A-c/Air Spring A,F,Z Standard Closed B Outside AO butterfly A-c/Air Spring Standard Closed Drywell exhaust bypass Outside AO A-c Spring Standard A>F>Z Closed Suppression chamber purge 1 24 Inside AO butterfly A-c/Air Spring A>F,Z Standard Closed inlet Outside AO butterfly A-c/Air Spring Standard Closed Suppression chamber exhaust 1 Outside AO A-c Spring Standard valve bypass A>F>Z Closed Suppression chamber main Inside AO butterfly A-c/Air Spring A,F,Z exhaust Standard Closed Outside AO butterfly A-c/Air Spring Standard Closed Drywell air sample 1/2 Inside SO valve A-c Spring A,F,Z Open Outside SO valve D-c Spring Open Suppression chamber Inside SO valve A-c Spring A>F>Z Open air sample Outside SO valve D-c Spring Open 4of6

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