ASME B30.18:2016 pdf free download

ASME B30.18:2016 pdf free 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 VI:REQUIREMENTS AND RECOMMENDATIONS
Requirements of this Standard are characterized byuse of the word shall.Recommendations of this Standardare characterized by the word should.
SECTION VI:uSE OF MEASUREMENT UNITS
This Standard contains Sl (metric) units as well asU.s. Customary units. The values stated inU.S.Customary units are to be regarded as the standard.The Sl units are a direct (soft) conversion from theU.S.Customary units.
SECTION VIII: REQUESTS FOR REVISION
The B30 Standard Committee will consider requestsfor revision of any of the volumes within theB30 Standard. Such requests should be directed to
Secretary, B30 Standard Committee
ASME Codes and Standards
Two Park Avenue
New York,NY 10016-5990
Requests should be in the following format:Volume: Cite the designation and title of the
volume.
Edition:Cite the applicable edition of the volume.Subject:Cite the applicable paragraph number(s)
and the relevant heading(s).
Request:Indicate the suggested revision.
Rationale: State the rationale for the suggested
revision.
Upon receipt by the Secretary,the request will beforwarded to the relevant B30 Subcommittee for consid-eration and action.Correspondence will be provided to the requester defining the actions undertaken by theB30 Standard Committee.
SECTION IX: REQUESTS FOR INTERPRETATIONThe B30 Standard Committee will render an interpre-tation of the provisions of the B30 Standard.AnInterpretation Submittal Form is available on ASME’swebsite at http: / / cstools.asme.org / Interpretation/InterpretationForm.cfm.
Phrase the question as a request for an interpretationof a specific provision suitable for general understand-ing and use, not as a request for approval of a proprietarydesign or situation.Plans or drawings that explain thequestion may be submitted to clarify the question. How-ever, they should not contain any proprietary names orinformation. Read carefully the note addressing thetypes of requests that the B30 Standard Committee canand cannot consider.
upon submittal, the request will be forwarded to therelevant B30 Subcommittee for a draft response, whichwill then be subject to approval by the B30 StandardCommittee prior to its formal issuance. The B30 -Standard Committee may rewrite the question for thesake of clarity.
Interpretations to the B30 Standard will be availableonline at https: / / cstools.asme.org / Interpretation/
SearchInterpretation.cfm.
SECTION x:ADDITIONAL GUIDANCE
The equipment covered by the B30 Standard is subjectto hazards that cannot be abated by mechanical means,but only by the exercise of intelligence, care, and com-mon sense. It is therefore essential to have personnelinvolved in the use and operation of equipment whoare competent, careful, physically and mentally quali-fied, and trained in the proper operation of the equip-ment and the handling of loads. Serious hazards include,but are not limited to, improper or inadequate mainte-nance,overloading, dropping or slipping of the load,obstructing the free passage of the load,and usingequip-ment for a purpose for which it was not intended ordesigned.
The B30 Standard Committee fully realizes the impor-tance of proper design factors, minimum or maximumdimensions,and other limiting criteria of wire rope orchain and their fastenings,sheaves,sprockets,drums,and similar equipment covered by the standard, all ofwhich are closely connected with safety. Sizes, strengths,and similar criteria are dependent on many differentfactors,often varying with the installation and uses.These factors depend on
(a) the condition of the equipment or material(b)the loads
(c) the acceleration or speed of the ropes, chains,sheaves, sprockets, or drums