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Scheda pubblicazione
Titolo:
Noise risk assessments in application of italian law D.Lgs. 277/91 and directive 2003/10/Ec in use of professional farm machinery
Autori:
Vassalini, G.; Fanigliulo, R.; Fedrizzi, M.
Anno:
2004
Lingue:
ENG, eng
Rivista:
Eleventh International Congress on Sound and Vibration (ICSV11) 5-8 July 2004, Saint-Petersburg, Russia
Tipo di pubblicazione:
Cartaceo
Luogo:
Editore:
Riassunto in Italiano:
Riassunto in Inglese:
In agriculture, some professional farm machineries are utilised in an intensive way for long periods. Italian law considers these machines as a place of work and risk evaluation is necessary before their use. In this paper the exposure of the operator to noise is examined in accordance with the italian law D.Lgs. 277/91 (acknowledging 80/1107/EEC, 86/188/EEC, 88642/EEC) in comparison with the new directive 2003/10/CE. The noise emissions of two self-propelled lawn mowers, with on-board drivers (ride-on), have been measured in normal operating conditions. The machines were equipped with two different engines and two cutting desks, for a total of 4 experimental thesis. The instruments were from Brel & Kjr and constituted by a microphone (type 4189), a modular precision sound analyzer (type 2260) and an acoustic calibrator (type 4231). Through such values it has been possible to calculate, in each thesis, the daily maximum exposure duration of the operator to noise in correspondence of the limit values outlined by the cited directives. The reduction of the maximum limits of noise level, from 90 dB(A) to 87 dB(A), directly affects the maximum duration of daily operator exposure to noise. The application of the new directive 2003/10/EC determines the necessary halving of the exposure time to noise. The tests results show that the measured noise levels exceed the law limitations, as verified in all the theses. Consequently the time range reduction from 2h up to 2h 45, strongly reduces the possibility of professional use of the tested lawn mowers, as planned in the respect of the previous law.

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