ML18283B578

Table 7.12-7, Summary of Operational Nuclear Safety Requirements

ML18283B578
Person / Time
Site:	Browns Ferry
Issue date:	10/10/2018
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
References
Download: ML18283B578 (1)

Text

BFNP Table 7.12-7

SUMMARY

OF OPERATIONAL NUCLEAR SAFETY REQUIREMENTS APPLICABILITYCONDITIONS BWR OPERATING STATES UNISOLATED LINES SUPP. REQUIRED NUMBER OF OPERABLE ALLOWABLE DRYWELL SUPP. SUPP. CHAMBER DRYWELLAND SUPP. COMPONENTS REPAIR ACTION REQUIRED NOMINAL MAJOR REACTOR DRYWELL DRYWELL EXHAUST CHAMBER CHAMBER EXHAUST TIP CHAMBER EXHAUST TIME FOR WHEN OPERABILITY SURVEILLANCE SYSTEM TRIP APPLICABI LITY BUILDING PURGE MAIN VALVE PURGE MAIN 'ALVE GUIDE TO STANDBY CONDITION CONDITION CONDITION NOT ASSURED TEST EQUIPMENT SETTING CONDITION C D E VENTILATION INLET EXHAUST BYPASS INLET EXHAUST, BYPASS TUBES GAS TREAT. I if II" II (See Notes) FREQUENCY 100 mr/hr Equipment sus- X X X X 2 channels continuously 2 channels continuously I month 3 months

1. Reactor building ventilation high pended over the or 1 for allowable or 1 for allowable OI radiation chan- fuel pool. repair time. repair time. b, c Sr d nels, refueling zone.

2. Reactor building 100 mr/hr System X X X I channel operable 1 channel operable Not 3 months ventilation high Leakage applicable OI c radiation chan-nels, reactor zone.

Notes: a. Isolate the reactor building and start the Standby Gas Treatment System

b. Do not suspend equipment over the fuel pool

c. Isolate all affected lines

d. Do not suspend equipment over the reactor core "Condition I: One trip system of the isolation control system (subsection 7.3) inoperable.

""Condition II: Both trip systems of the isolation control system (subsection 7.3) operable.

7.12 19/7.12 20