Variation between manufacturers’ declared vibration emission values and those measured under simulated workplace conditions for a range of hand-held power tools typically found in the construction industry

摘要

Tool manufacturers are required to declare the vibration emission of their hand-held powerudtools in order to sell them within Europe. To enable comparison between differentudmanufacturers, tests are carried out in accordance with the relevant test code (such as thoseuddefined in the ISO 8662 and EN 60745 series). These tests may be carried out in artificialudcircumstances which do not necessarily correctly predict the vibration emission that would beudobtained in the workplace and often underestimate the magnitude of the vibration. In practice,udtools are used with a range of inserted tools on different materials, resulting in a range ofudvibration emission values for a given tool. CEN Technical Report, CEN/TR 15350 providesudmultiplication factors to enable an estimate of the workplace vibration emission to be obtainedudfrom the manufacturers’ data. This paper compares the manufacturers’ declared vibration emission values with thoseudmeasured for the public-domain OPERC HAVTEC database. The OPERC measurements haveudbeen made according to ISO 5349 using simulated workplace conditions, with a range ofudinserted tools for each machine tested. A total of 656 tool/attachment combinations areudpresented from 105 different tool models, covering a wide range of applications typically foundudwithin the construction industry. The measured data is compared with the manufacturersuddeclared emission value, with and without the multiplication factors given in CEN/TR 15350.udIt was found that, in general, the manufacturers’ declared values underestimated the workplaceudvibration emission, whereas the multiplication factors given in CEN/TR 15350 overestimatedudthe workplace vibration emission.