engleski

EXPOSURE TO THE HAND-ARM TRANSMITTED VIBRATION AT USING PNEUMATIC SANDING MACHINE

According to some recent data approximately 1.5 to 2 million workers in the USA, 1.6 millions in GB and several millions in EU are exposed to vibration. Therefore protection against vibration gains more and more attention. In 2002 the Directive /44/EC - On the Minimum Health and Safety Reqiurements regarding to Exposure of Workers to the Risk Arising from Physical Agents: Vibration - was issued. It set limits for the worker’s exposure to hand-transmitted vibration to 2, 5 m/s2 (action value), i.e. 5 m/s2 (upper limit value). Written into laws the Directive became obligatory for all EU member-states. The whole-body vibration limits are set at 0, 5 m/s2 , i.e. at 1, 15 m/s2. As generally known, the pneumatic hand-tools are one of the most dangerous sources of hand-transmitted vibration. In the last few years only in GB there have been some 140.000 miners with signs of VWF (Vibration White Finger desease) who were paid nearly 3, 000, 000, 000L. Indemnity (Griffin, 1996). The measurement results and vibration acceleration analyses confirm that the risk of permanent health damage to persons operating hand sanding machines is quite real. As a matter of fact, this investigation work was initiated because of health damages observed with sanding machines operators in the woodworking and wood processing plants in Croatia. Daily exposure should be strictly limited in accordance with the recommended exposure times.

daily exposure limits; health risk; permanent health damage; vibration aceleration analysis

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