ML18283B578

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Table 7.12-7, Summary of Operational Nuclear Safety Requirements
ML18283B578
Person / Time
Site: Browns Ferry  Tennessee Valley Authority icon.png
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 OPERATIONALNUCLEAR SAFETY REQUIREMENTS BWR OPERATING STATES APPLICABILITYCONDITIONS UNISOLATED LINES SYSTEM EQUIPMENT

1. Reactor building ventilation high radiation chan-nels, refueling zone.

NOMINAL TRIP SETTING 100 mr/hr MAJOR APPLICABILITY CONDITION Equipment sus-pended over the fuel pool.

C D

E X

X X

REACTOR BUILDING VENTILATION DRYWELL PURGE INLET DRYWELL MAIN EXHAUST X

DRYWELL EXHAUST VALVE BYPASS SUPP.

CHAMBER PURGE INLET SUPP.

SUPP.

CHAMBER CHAMBER EXHAUST MAIN

'ALVE

EXHAUST, BYPASS TIP GUIDE TUBES DRYWELLAND SUPP.

CHAMBER EXHAUST TO STANDBY GAS TREAT.

CONDITION I if 2 channels continuously or 1 for allowable repair time.

CONDITION II" 2 channels continuously or 1 for allowable repair time.

REQUIRED NUMBER OF OPERABLE COMPONENTS ALLOWABLE REPAIR TIME FOR CONDITION II I month ACTION REQUIRED WHEN OPERABILITY NOT ASSURED (See Notes)

OI b, c Sr d SURVEILLANCE TEST FREQUENCY 3 months

2. Reactor building ventilation high radiation chan-nels, reactor zone.

100 mr/hr System Leakage X

X X

I channel operable 1 channel operable Not applicable OI c 3 months 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