ASME B30.16:2022 pdf download

ASME B30.16:2022 pdf download.Overhead Underhung and Stationary Hoists
The ASME B30 Standard contains provisions thatapply to the construction, installation, operation, inspection, testing, maintenance, and use of cranes and other lifting and material-movement-related equipment. For the convenience of the reader, the Standard has been divided into separate volumes. Each volume has been written under the direction of the ASME B30 Standards Committee and has successfully completed a consensus approval process under the general auspices ofthe Amer- ican National Standards Institute (ANSI).
The B30 Standards Committee will render an interpre- tation ofthe provisions ofthe B30 Standard. An Interpre- tation Submittal Form is available on ASME’s website at http://cstools.asme.org/Interpretation/Interpretation- Form.cfm. Phrase the questionas arequestforaninterpretationof a specific provision suitable for general understanding and use, not as a request for approval of a proprietary design or situation. Plans or drawings that explain the question may be submitted to clarify the question. However, they should not contain any proprietary names or information. Read carefully the note addressing the types of requests that the B30 Standards Committee can and cannot consider. Upon submittal, the request will be forwarded to the relevant B30 Subcommittee for a draft response, which will then be subject to approval by the B30 Standards Committeepriorto itsformalissuance. TheB30 Standards Committeemayrewritethequestionforthesakeofclarity. Interpretations to the B30 Standard will be available online at https://cstools.asme.org/Interpretation/ SearchInterpretation.cfm.
Volume B30.16 includes provisions that apply to the construction, installation, operation, inspection, testing, and maintenance of overhead underhung and stationary hoists, including hand-chain-operated, electric-powered, and air-powered chain and wire rope hoists used for, but not limited to, vertical lifting and lowering of freely suspended, unguided loads that consist of equipment and materials (see Figures 16-0.1-1 through 16-0.1-6). Requirements for a hoist that is used for a special purpose, such as, but not limited to, tensioning a load, nonvertical liftingservice, liftinga guided load, liftingper- sonnel, or drawingboth the load and the hoistup or down the load chain or rope when the hoist is attached to the load, are not included in this Volume.
abnormaloperating conditions: environmental conditions thatareunfavorable, harmful, ordetrimentalto the opera- tion of the equipment, such as excessively high or low ambient temperatures, exposure to weather, corrosive fumes, dust-laden or moisture-laden atmospheres, and hazardous locations. angle ofloading: the angle between a hoist rope or load chain and the vertical axis (see Figure 16-0.2-1). block, load: the assembly of hook or shackle, swivel, bearing, sheaves, sprockets, pins, and frame suspended by the hoisting rope or load chain. This shall include any appurtenances reeved in the hoisting rope or load chain. brake: a device, other than a motor, used for retarding or stopping motion by means of friction or power. brake, holding: a friction brake for a hoistthatis automat- ically applied and prevents motion when power is off. brake, mechanicalload:anautomatictypeoffrictionbrake used for controlling loads in a lowering direction. This unidirectional device requires torque from the motor or hand chain wheel to lower a load but does not impose any additional load on the motor or hand chain wheel when lifting a load. braking, eddycurrent: a method ofcontrollingor reducing speed by means of an energy induction load brake. braking, mechanical: a method ofcontrolling or reducing speed by friction. braking, regenerative: a method of controlling speed in which the electrical energy generated by the motor is fed back into the power system. chain, hand: the chain grasped by a person to apply force required for the lifting or lowering motion. chain, load: the load-bearing chain in a hoist. chain, roller: a series ofalternately assembled roller links and pin links in which the pins articulate inside the bush- ings and the rollers are free to turn on the bushings. Pins and bushings are press fit in their respective link plates. chain, welded link: a chain consisting of a series of inter- woven links, formed and welded.