ML17037C785
| ML17037C785 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 02/06/2017 |
| From: | Niagara Mohawk Power Corp |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| Download: ML17037C785 (1) | |
Text
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
~T'e 7 11,12) Status(9,IO)
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