ML17037C691

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Table 7.2-1 (Contd) 3 of 6
ML17037C691
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: ML17037C691 (1)


Text

NMPNS-2 TABLE 7.2-1 (CONT'D) 1 11d Number of Lines Approximate Pipe Size, Valves Per

~ine rou Valve Location Relative to Primary Containment Valve and/or Operator

~(6 Power to

~en,6)

Power to

~dt Isolation 1

Closing Normal Time(7,11,12) g~~~s(9,10)

~rks LPCS pump suction from suppression pool 18 Outside MO A-c A-c Standard Open HPCS to reactor HCPS pump suction HPCS test line to suppression pool HPCS minimum flow bypass 1

HPCS test line to condensate tank 12 18 12 Lat,er A

A Inside Outside Outside Outside Outside Outside AO check MO gate MO gate MO globe MO globe MO globe Note 3

A-c A-c A-c A-c A-c Note 3

A-c A-c A-c A-c A-c Note 3

NdRM Standard Standard Standard Standard.

Standard Closed Closed Closed Closed Closed Closed (Signai G opens, signal N

( overrides to close Note 9

Drywell equipment drain discharge Drywell floor drain discharge Traversing incore probe Instrument sensing line As required (Part of protection system) 1 1/2 B

B B

B A

A A

A Inside Outside Inside Outside Outs ide Outside Outside Outside MO AO MO AO SO shear SO ball Hand.

Flow check A-c Air/A-c A-c Air/A-c D-c A-c Hand.

Spring A-c Spring A-c Spring D-c A-c Hand AdF A,F A,F A,F EM AdF Excess flow Standard Standard Standard Standard Open Open Open Open Open Closed Open)

Open)

)

)

Note 9 Typical of Class A

(A5 instrument lines which form part of protection system Instrument sensing line (Not part of protection system)

Instrument sensing drywell pressure As required 1

1/2 A

A Outside Outside Outside Outside Flow check Hand Hand Flow check Spring Hand Hand Spring Hand Excess flow Excess flow Open)

Open)

)

)

Open)

Open)

)

)

Typical of Class A

instrument lines which

]Ay do not form part of protection system Typical of Class B

[p,B instrument lines which form part of protection system 3of 6