ML21286A341

Amendment 29 to Updated Final Safety Analysis Report, Chapter 5, Section 5.1, Summary Description

ML21286A341
Person / Time
Site:	Browns Ferry
Issue date:	10/04/2021
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
Shared Package
ML21286A574	List: ML21277A142 ML21286A195 ML21286A196 ML21286A197 ML21286A198 ML21286A199 ML21286A200 ML21286A201 ML21286A204 ML21286A205 ML21286A206 ML21286A210 ML21286A211 ML21286A212 ML21286A213 ML21286A216 ML21286A217 ML21286A218 ML21286A219 ML21286A220 ML21286A221 ML21286A222 ML21286A223 ML21286A224 ML21286A225 ML21286A226 ML21286A227 ML21286A229 ML21286A230 ML21286A231 ML21286A232 ML21286A233 ML21286A234 ML21286A235 ML21286A236 ML21286A237 ML21286A238 ML21286A239 ML21286A240 ML21286A241 ML21286A242 ML21286A243 ML21286A244 ML21286A245 ML21286A246 ML21286A247 ML21286A248 ML21286A249 ML21286A250 ML21286A252 ... further results
References
Download: ML21286A341 (1)

Text

BFN-29 5.0 CONTAINMENT 5.1

SUMMARY

DESCRIPTION 5.1.1 General The containment systems provide a multibarrier, pressure suppression containment employing containment-in-depth principles in the design. The fuel, fuel cladding, and Reactor Coolant System form barriers to the release of fission products and are described in other sections of the report. Herein is described a containment system which is composed of a primary containment and a secondary containment.

5.1.2 Primary Containment The primary containment (as described in Section 5.2.3) consists of a drywell, corresponding steel penetrations, a pressure suppression chamber and vent system, a hardened containment venting system, isolation valves, containment cooling systems, pressure differential equipment, instrumentation and other service equipment.

5.1.3 Secondary Containment The secondary containment consists of the entire Reactor Building (as described in Section 5.3). Low-leakage dampers and valves are used to isolate the secondary containment, and the Standby Gas Treatment System is used to maintain the secondary containment at a negative pressure and provide for a controlled, filtered, elevated release of the secondary containment atmosphere under abnormal conditions.

5.1-1