ML21286A368

Amendment 29 to Updated Final Safety Analysis Report, Chapter 7, Table 7.3, Primary Containment Isolation

ML21286A368
Person / Time
Site:	Browns Ferry
Issue date:	10/04/2021
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
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Download: ML21286A368 (3)

Text

BFN-26 Table 7.3-1 (Deleted by Amendment 9)

BFN-26 TABLE 7.3-2 (Sheet 1)

PRIMARY CONTAINMENT ISOLATION SYSTEM INSTRUMENT SPECIFICATIONS Isolation* Trip Setting/

Signal Isolation Function Sensor Analytical Limit (AL)

A Reactor vessel low water level differential pressure 518 inches above vessel zero (AL) indicating switch B Reactor vessel low-low water differential pressure 372.5 inches above vessel zero level indicating switch (AL)

D Main steam line space high temperature switch 205°F (AL) for 12/3-TS-1-17A thru D/

temperature thru D Main steam line high flow differential pressure 144% rated flow (AL)

PDIS-1-13A-D, 25A-D, 36A-D, switch 50A-D E HPCI diaphragm Rupture Disc pressure switch 52 psig (AL) high pressure P Main steam line low pressure pressure switch 843 psig F Primary containment high pressure switch 2.6 psig (AL) pressure K RCIC turbine steam line space temperature switch 180°F (AL)

RCIC pump room area high temperature K RCIC Turbine steam line space temperature switch 155°F (AL) torus area high temperature K RCIC turbine steam line high differential pressure 1114 inch H20 (AL) flow switch K RCIC turbine steam line low pressure switch 40 psig (AL) pressure L HPCI turbine steam line space temperature switch 200°F (AL)

HPCI Pump Room Area high temperature

BFN-26 TABLE 7.3-2 (Sheet 2)

PRIMARY CONTAINMENT ISOLATION SYSTEM INSTRUMENT SPECIFICATIONS Isolation* Trip Setting/

Signal Isolation Function Sensor Analytical Limit (AL)

L HPCI Turbine Steam Line temperature switch 180°F (AL)

Space Torus Area High Temperature L HPCI turbine steam line high differential pressure switch 107 psid (AL) flow L HPCI turbine steam line low pressure switch 55 psig (AL) pressure Z Reactor Building ventilation radiation monitor 100 mr/hr exhaust high radiation J Reactor Water Cleanup RTD U2 190°F (AL)

System Main Steam Valve U3 205°F (AL)

Vault (TE-069-834A-D)

J Reactor Water Cleanup RTD 140°F (AL)

System Pipe Trench (TE-069-835A-D)

J Reactor Water Cleanup RTD 148°F*

System Pump Room 2A (TE-069-836A-D)

J Reactor Water Cleanup RTD 148°F*

System Pump Room 2B (TE-069-837A-D)

J Reactor Water Cleanup RTD U2 160°F (AL)

System Heat Exchanger Room U3 175°F (AL)

(TE-069-838A-D)

J Reactor Water Cleanup RTD U2 172°F (AL)

System Heat Exchanger Room U3 173°F (AL)

(TE-069-839A-D)

G RCIC diaphragm rupture disc Pressure switch 50 psig (AL) high pressure

• See Table 5.2-2 for Isolation Signal Codes.