This paper describes considerations and the implementation of retrofitting a fully-automated procedure, for testing a public address system, into a safety-critical environment (a nuclear power plant). There are over 4000 loudspeakers, about 200 amplifiers as well as various alarm-signal generators that need to be tested every day within a few minutes. Additionally, all command room microphones are checked using a semi-automated procedure. The procedures were designed and configured to not only reliably detect single defective components, but also to not produce any false alarms.

Authors: Schmidle, Gregor; Schwizer, Philipp; Häns, Winfried
Affiliations: NTi Audio AG, Schaan, Liechtenstein; Kernkraftwerk Gundremmingen GmbH, Gundremmingen, Germany(See document for exact affiliation information.)
AES Convention: 137 (October 2014) Paper Number: 9117
Publication Date: October 8, 2014
Subject: Transducers

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