ML21286A373

Amendment 29 to Updated Final Safety Analysis Report, Chapter 7, Table 7.2, Reactor Protection System Instrumentation Specifications

ML21286A373
Person / Time
Site:	Browns Ferry
Issue date:	10/04/2021
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
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Text

BFN-22 TABLE 7.2-1 REACTOR PROTECTION SYSTEM INSTRUMENTATION SPECIFICATIONS Units 1 and 2 Scram Function Instrument Analytical Limit (AL)

Neutron Monitoring See Neutron System Scram Monitoring System Nuclear System Pressure Transmitter 1071 psig (AL) (Unit 2)

High Pressure 1101 psig (AL) (Unit 1)

PT-3-22AA, -22BB, -22C, -22D Reactor Vessel Low Level Transmitter 518 inches above Water Level vessel zero (AL)

LT-3-203A-D,-184,-185 Turbine Stop Position Switch Before 10% valve Valve Closure closure from full open position Turbine Control Pressure Switch 550 psig Valve Fast Closure Main Steam Line Position Switch Before 10% valve Isolation Valve closure from full Closure open position Scram Discharge Level Switch 51 gal. (Unit 1 only)

Volume High 54.4 gal. (Unit 2 only)

Water Level Primary Containment Pressure Transmitter 2.6 psig (AL)

High Pressure Main Steam Line Gamma Radiation 3 times normal Radiation (For Unit 1 Monitor high full power only, not a safety background related function)

BFN-22 TABLE 7.2-1a REACTOR PROTECTION SYSTEM INSTRUMENTATION SPECIFICATIONS Unit 3 Scram Function Instrument Analytical Limit (AL)

Neutron Monitoring See Neutron System Scram Monitoring System Nuclear System Pressure Transmitter 1101 psig (AL)

High Pressure PT-3-22AA,-22BB, -22C, -22D Reactor Vessel Low Level Transmitter 518 inches above Water Level vessel zero (AL)

LT-3-203A-D,-184,-185 Turbine Stop Position Switch Before 10% valve Valve Closure closure from full open position Turbine Control Pressure Switch 550 psig Valve Fast Closure Main Steam Line Position Switch Before 10% valve Isolation Valve closure from full Closure open position Scram Discharge Level Switch 54.4 gal.

Volume High Water Level Primary Containment Pressure Transmitter 2.6 psig (AL)

High Pressure

BFN-22 Table 7.2-2 (Deleted by Amendment 13)