ASME B30.2-2011 pdf download
ASME B30.2-2011 pdf download.Overhead and Gantry Cranes.
SECTION IX: REQUESTS FOR INTERPRETATION
The B30 Standard Committee will render an interpretation of the provisions of the 830 Standard. Such requests should be directed to
Secretary B30 Standard Committee
ASME Codes and Standards
Three 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 B30 StandardCornmittee prior to its formal issuance.
Interpretations to the B30 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, bitt are not limited to, improper or inadequate inaintenance, 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 830 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,
braking, hydraulic: a method of controlling or reducing speed by means of displacement of a liquid.
braking, mechanical: a method of controlling or reducing speed by friction.
braking, pneumatic: a method of controlling or reducing speed by means of compressed gas.
braking, regenerative: a method of controlling speed in which the electrical energy generated by the motor is fed back into the power system.
braking, service: a method to decelerate crane motion during normal operation.
bridge: that part of a crane consisting of one or more girders, trucks, end ties, footwaiks, and drive mechanisrn, which carries the trolley or trolleys.
bridge travel: the crane movement in a direction parallel to the crane runway.
bumper (buffer): a device for reducing impact when a moving crane or trolley reaches the end of its permitted travel, or when two moving cranes or trolleys come into contact. This device may be attached to the bridge, trolley, or runway stop.
cab: the operator’s compartment on a crane.
cab, normal: operator’s compartment used for controlling a cab-operated crane.
cab, skeleton: operator’s compartment used for occasional cab operation of a normally floor- or remote-operated crane.
cantilever frame: a structural member that supports the trolley of a wall crane.
clearance: distance from any part of the crane to the nearest obstruction.
collectors, current: contacting devices for collecting current from runway or bridge conductors.
conductors, bridge: the electrica’ conductors located along the bridge structure of a crane that transmit control signals and power to the trolley(s).
conductors, runway (main): the electrical conductors located along a crane runway that transmit control signals and power to the crane.
controller: a device, or group of devices, that serves to govern, in a predetermined manner, the power delivered directly to the apparatus to which it is connected.
controller, manual: a controller having all of its basic functions performed by devices that are operated by hand.
