ML21278A129

2 to Updated Final Safety Analysis Report, Chapter 5, Section 5.4, System Design Evaluation

ML21278A129
Person / Time
Site:	Calvert Cliffs
Issue date:	09/07/2021
From:	Exelon Generation Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML21278A102	List: ML21257A249 ML21257A253 ML21257A254 ML21257A255 ML21257A256 ML21257A258 ML21257A259 ML21257A260 ML21257A261 ML21257A262 ML21257A263 ML21257A264 ML21257A265 ML21257A267 ML21257A268 ML21257A269 ML21257A278 ML21257A281 ML21257A282 ML21257A283 ML21257A284 ML21257A285 ML21257A286 ML21257A287 ML21257A288 ML21257A289 ML21257A298 ML21257A299 ML21257A300 ML21257A301 ML21257A302 ML21257A303 ML21257A304 ML21257A305 ML21257A306 ML21278A106 ML21278A107 ML21278A108 ML21278A109 ML21278A110 ML21278A111 ML21278A112 ML21278A113 ML21278A114 ML21278A115 ML21278A116 ML21278A117 ML21278A118 ML21278A122 ML21278A123 ... further results
References
NEI 99-04
Download: ML21278A129 (1)

Text

CALVERT CLIFFS UFSAR 5.4-1 Rev. 47 5.4 SYSTEM DESIGN EVALUATION This system is not dependent on the operation of a continuous leakage monitoring system for the entire containment, or on a continuous leakage surveillance system for containment penetrations and seals, since neither of these systems is being furnished. Therefore, no analysis of the capability of these systems is necessary.

The penetration room ventilation system provides a partial double containment system and is an additional engineered safety feature.

A full evaluation of the containment system is included in Section 5.1.8, Leakage Monitoring System. The Containment Structure, with its associated engineered safety systems, prevents uncontrolled release of radioactivity to the plant and surrounding areas during normal operating and accident conditions.