ASME 30.4 pdf free download

ASME B30.4-2015 pdf free download.Portal and Pedestal Cranes Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings.
SECTION IX: REQUESTS FOR INTERPRETATION
The 830 Standard Committee will render an interpft’tation of the provisions of the 830 Standard. Such requesis should be directed to
Secretar 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).
Question: 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.
Upon receipt by the Secretary, the request will be forwarded to the relevant 830 Subcommittee for a draft response, which will then be subject to approval by the 830 Standard Committee prior to its formal issuance.
Interpretations to the 830 Standard will be published in the subsequent edition of the respective volume, and will be available online at http://cstools.asme.org/.
SECTION X: ADDITIONAL GUIDANCE
The equipment covered by the 830 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 Standard 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
(c) the acceleration or speed of the ropes, chains,sheaves, sprockets, or drums
(d) the type of attachmentsASME B30.4 pdf download.