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Evaluation of the audibility of acoustics signals in industrial areas

Author(s): M. Arana, M. L. San Martin, A. Vela & R. San Martin Abstract: Acoustic signals used in industrial areas alerting danger have to fulfil a fundamental requirement. They have to be both audible and recognisable by any worker potentially affected by the consequences that acoustic signal dorms. This requirement implies the adequate design of acoustic emission dependmg on the background noise, distance to receivers, hearing loss of them, etc. The norm EN- 457: 1992 explains the criteria applicable to the identification of the acoustic signals at the reception areas, even more in the areas where the background noise is high. The results obtained in 50 measurements carried out in industrial areas will be shown. Four different industrial activities were selected: car, chemical, paper and building industries. All of the acoustic signals fulfilled ... Pages: 8 Size: 410 kb Paper DOI: 10.2495/AC030011

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