[태그:] crane work safety

30. Operating Mobile Cranes A crane is an item of plant intended for raising or lowering a load and moving it horizontally including the supporting struture of the crane and its foundations. There are a range of ‘fixed’ (tower, bridge, gantry, portal boom, vessel-mounted) and ‘mobile’ (slewing, non-slewing, vehile loading) cranes. ∴ ∴ Hazard Category…