ASME B30.8-2020 pdf download

ASME B30.8-2020 pdf download.Floating Cranes and Floating Derricks.
Upon receipt by the Secretary, the request will be forwarded to the relevant B30 Subcommittee for consideration and action. Correspondence will be provided to the requester defining the actions undertaken by the B30 Standards Committee.
SECTION IX: REQUESTS FOR INTERPRETATION
The B30 Standards Committee will render an interpretation of the provisions of the B30 Standard. An Interpretation Submittal Form is available on ASME’s website at http://cstools.asme.org/Interpretation/InterpretationForm.cfm.
Phrase the question as a request for an interpretation of 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 Committee prior to its formal issuance. The B30 Standards Committee may rewrite the question for the sake of clarity.
Interpretations to the B30 Standard will be available online at https://cstools.asme.org/lnterpretation/ Search lnterpretation.cfm.
SECTION X: ADDITIONAL GUIDANCE
The equipment covered by the B30 Standard is subject to hazards that cannot be abated by mechanical means, but only by the exercise of intelligence, care, and common sense. It is therefore essential to have personnel involved in the use and operation of equipment who are competent, careful, physically and mentally qualified, and trained in the proper operation of the equipment and the handling of loads. Serious hazards include, but are not limited to, improper or inadequate maintenance, overloading, dropping or slipping of the load, obstructing the free passage of the load, and using equipment for a purpose for which it was not intended or designed.
The B30 Standards Committee fully realizes the importance of proper design factors, minimum or maximum dimensions, and other limiting criteria of wire rope or chain and their fastenings, sheaves, sprockets, drums, and similar equipment covered by the Standard, all of which are closely connected with safety. Sizes, strengths, and similar criteria are dependent on many different factors, often varying with the installation and uses. These factors depend on
(a) the condition of the equipment or material
(b) the loads
boom point: the outward end of the top section of the boom.
boom stop (crane): a device used to limit the angle of the boom at the highest position.
brake: a device used for retarding or stopping motion. cab: the operator’s compartment on a crane or derrick. capstan: a spool-shaped revolving drum, manually or power operated, used for heaving in of heavy mooring lines. A capstan head may be a component of an anchor windlass.
chock: a mooring fitting having faired inner surfaces or rollers for guiding lines.
cleat: a mooring fitting having two horizontal arms to which mooring lines are secured.
clutch: a means for engagement or disengagement of power.
counterweight: weight used to supplement the weight of the machine in providing stability for lifting working loads.
cross angle: the lateral angle between the load tackle and center plane of boom caused by list and trim.
derrick, shearleg: a boom with or without a mast, not capable of swinging, hinged at the bottom, and raised and lowered by a boom hoist mechanism or a hydraulic cylinder.
derrick, stiffleg: a rigid member supporting the mast at the head.
drum: a cylindrical member around which a rope is wound for lifting and lowering the load or boom.
dynamic loading: loads introduced into the machine or its components by forces in motion.
eye: a loop formed at the end ofa rope by securing the dead end to the live end at the base of the loop.