ASME B30.18 pdf download

ASME B30.18 pdf download Stacker Cranes (Top or Under Running Bridge, Multiple Girder With Top or Under Running Trolley Hoist) Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings
SECTION 18-0.1: SCOPE OF B30.18
Volume B30.18 includes provisions that apply to theconstruction,installation, operation, inspection, andmaintenance of hand-powered and power-driven overhead and gantry cranes that have a top or under runningmultiple girder bridge with a vertically guided carriagewith or without a top or under running trolley. Therequirements included in this Volume also apply tostacker cranes having the same fundamental characteristics, such as cantilever gantry and semi-gantry stackercranes.
SECTION 18-0.2: DEFINITIONS18-0.2.1 Types of Equipment
cab-operated sfacker crane: a crane controlled by an opera-tor in a cab that is attached to the bridge mast, trolleystacker mast, or load carriage (see Fig. 18-0.2.1-1).canfilever &anfry stacker crane: a gantry or semi-gantrycrane in which the bridge girders extend transverselybeyond the crane runway on one or both sides.crane: a machine for lifting and lowering a load andmoving it horizontally, with the hoisting mechanismbeing an integral part of the machine.
floor-operafed sfacker crane: a crane that is controlled byan operator on the floor or an independent platformusing a means suspended from the crane (seeFig.18-0.2.1-2).
gantry stacker crane: a crane similar to an overhead craneexcept that the bridge for carrying the trolley(s) is rigidlysupported on two or more legs running on fixed railsor other runway.
oufdoor crane: an overhead or gantry crane that operatesoutdoors and for which provisions are not available forstorage in an area that provides protection to the cranefrom weather conditions. An indoor crane that may operate outdoors on a periodic basis is not classified asan outdoor crane.
power-operafed stacker crane: a crane whose mechanismis driven by electric, air, or hydraulic means.
pulpit-operafed crane: a crane operated from a fixed operator station not attached to the crane.
remote-operated crane: a crane whose movements are controlled by an operator through the use of controllerscontained in a portable operating station not attachedto the crane.
semi-ganfry sfacker crane: a gantry crane with one end ofthe bridge rigidly supported on one or more legs thatrun on a fixed rail or runway, the other end of the bridgesupported by a truck running on an elevated rail orrunway.
stacker crane: a crane used for stacking and retrievingpalletized or containerized materials, with a multiplegirder movable bridge carrying a hoisting mechanismmast, and carriage (see Fig.18-0.2.1-3)
18-0.2.2 General
abnormal operating conditions: environmental conditionsthat are unfavorable, harmful, or detrimental to the operation of the equipment, such as excessively high or lowtemperatures，exposure to adverse weather, corrosivefumes, dust- or moisture-laden atmospheres, and hazardous locations.
aisle: space between storage compartment rows in whichthe equipment may operate.
ampacity: current-carrying capacity of electric conduc-tors,in amperes.
automtatic or autorafically: pertains to equipment functions that do not require the attention of the operatorduring their functional operation.
brake: a device, other than a motor, used for retardingor stopping motion by means of friction or power.