ASME B30.7 pdf free download

ASME B30.7-2016 pdf free download.Winches Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings.
critical lift: a load handling operation that has been determined to present an increased risk beyond normal load handling activities. For example, increased risk may relate to personnel injur)c damage to property, interruption of plant production, delays in schedule, release of hazards to the environment, or other jobsite factors.
drum: the cylindrical member around which rope is wound for moving the load.
exposed: describes hazards not guarded or isolated (capable of being contacted inadvertently).
final stage manufacturer: an entity that assembles, installs, or permanently affixes a winch to complete a load movement system.
jaw clutch: a clutch composed of two hubs with jaws that engage each other. This type of clutch is either engaged or disengaged and cannot slip.
lzftingflowrring: vertical movement of a freely suspended load by a winch.
limit device: a device that is activated by some part or motion of a winch to stop drum rotation.
,nininiu,,r breaking jirce: the minimum load at which a new and unused wire rope will break when loaded to destruction in tension.
operating conditions, normal: conditions during which a winch is performing functions within the scope of its original design.
pawl (dog): a device for positively holding machinery against undesired motion.
qualified person: a person who, by possession of a recognized degree in an applicable field or certificate of professional standing, or who, by extensive knowledge. training, and experience, has successfully demonstrated the ability to solve or resolve problems relating to the subject matter and work.
ratchet: a toothed component for engagement with the paw I.
rated line pull: the manufacturer’s recommended load in pounds (kilograms) applied to the rope attachment on the winch drum.
rated load: winch rating in pounds (kilograms) established by the manufacturer in accordance with Section 7-1.1.
rope: refers to wire rope unless otherwise specified.
rotatiou-resisfa,,t rope: a wire rope consisting of an inner layer of strands laid in one direction covered by a layer of strands laid in the opposite direction; this has the effect of counteracting torque by reducing the tendency of the finished rope to rotate.
service, Iwavy: service that involves operation within the rated load limit but that exceeds normal service.
service, normal: distributed service that involves operation with randomly distributed loads within the rated load limit, or uniform loads less than 65% of rated load for not more than 25% of the time.
service, severe: service that involves normal or heavy service with abnormal conditions.
shall: a word indicating a requirement.
should: a word indicating a recommendation.
spooling: winding of rope on a cylindrical drum in evenly spaced wraps and uniform layers.
standbti winch: a winch not in regular service but used occasionally or intermittently as required.
swinger drum: a drum that has a wire rope connection point at each flange to allow an overwind and underwind operation. When the rope is wrapped around a derrick bull wheel, it is used to slew or swing the derrick.
switch: a device for making, breaking, or changing the connections in an electric, hydraulic, or pneumatic circuit (valve).
winch: a power-driven drum(s) that when attached to a load is capable of moving the load (see Figs. 7412-1 through 74)2-4).ASME B30.7 pdf download.