UL Standards & Engagement Electric Motor-Operated Hand-Held Tools, Transportable Tools and Lawn and Garden Machinery - Safety - Part 4-3: Particular Requirements for Pedestrian Controlled Walk-Behind Lawnmowers UL 62841-4-3

This clause of Part 1 is applicable, except as follows: Addition: This document applies to the design of pedestrian controlled walk-behind - cylinder lawnmowers ; and - rotary lawnmowers equipped with - metallic cutting means ; and/or - rigid non-metallic cutting means ; and/or - non-metallic cutting means with one or more cutting elements pivotally mounted on a generally circular drive unit, where these cutting elements rely on centrifugal force to achieve cutting, and have a kinetic energy for each single cutting element of greater than 10 J. NOTE 101 Machines that have non-metallic cutting means and a kinetic energy for each single cutting element of less than or equal to 10 J are considered to be lawn trimmers. This document does not apply to - robotic lawnmowers; - remote-controlled lawnmowers; - flail mowers or flail-type attachments; - scissors type lawnmowers; - grassland mowers; - sickle bar mowers; - towed/semi-mounted grass-cutting machines; - scrub-clearing machines; - lawn trimmers and lawn edge trimmers; - lawn edgers; - grass trimmers; - brush cutters; - brush saws; - agricultural mowers; - trailing seat/sulky units; - ride-on machines; - non-powered lawnmowers; - combustion engine powered lawnmowers; - hybrid and fuel cell powered machines and associated charging systems; and - garden tractors or their attachments. NOTE 102 Robotic lawnmowers are covered by IEC 60335-2-107, and will be covered by a future part of IEC 62841. NOTE 103 Lawn trimmers and lawn edge trimmers are covered by IEC 60335-2-91. NOTE 104 Lawn trimmers, lawn edge trimmers, grass trimmers, brush cutters and brush saws will be covered by a future part of IEC 62841. NOTE 105 Lawn edgers will be covered by a future part of IEC 62841.