ASME B30.27-2005 pdf free download.Material Placement Systems.
If these standards are adopted for governmental use, the references to other national codes and standards in the specific volumes may be changed to refer to the corresponding regulations of the governmental authorities.
The use of cahleways, cranes, derricks, hoists, hooks, jacks, and slings is subject to certain hazards that cannot be met 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 safe operation of the equipment and handling of the loads, Serious hazards are overloading, dropping or slipping of the load caused by improper hitching or slinging, obstructing the free passage of the load, and using equipment for a purpose for which it was not intended or designed.
The Standards Committee fully realizes the importance of proper design factors, minimum or maximum sizes, and other limiting dimensions of wire rope or chain and their fastenings, sheaves, spnwkets, 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 the condition of the equipment or material; the loads; the acceleration or .peed of the ropes, chains, sheaves, spnxkets, or drums; the type of attachments; the number, size, and arrangement of sheaves or other parts; environmental conditions causing corrosion or i’ear; and many variables that must be considered in each individual case. The rules given in the Standard must be interpreted accordingly, and judgment must be used in determining their application.
used to support the machine.
placing booms: manual or power driven, slewable working devices, consisting of one or more extendable or foldable parts supporting the material delivery system, and directing the discharge into the desired location.
priority switching: transferring control of one or more functions from a control location to a different control location.
qualified person: a person who, by possession of a recognized degree in an applicable field, or certificate of professional standing, or who by extensive knowledge, training, and experience, has successfully demonstrated the ability to solve or resolve problems relating to the subject matter and work.
rated load: maximum allowable working load designated by the manufacturer.
remote control: a portable control device connected to the machine by a wire cable or linked by radio or other means. safety device: a means placed in use for the specific purpose of preventing an unsafe condition.
sheave: a grooved wheel or pulley used with a rope to change the direction and point of application of a pulling force.
shortrigging: one or more outriggers not fully extended on the side away from the boom operational area.
signal person: see spotter.
speqfic type (of material placement system): a model, style, or size classification of material placement system (e.g., three section boom, four section boom, 50 meter class, conveyor).
spotter: a signal person/spotter is a person positioned at a vantage point where both the point of discharge and the operator of the material placement system can be seen and relays information to the operator.
SECTION 27-0.3: REFERENCE TO OTHER CODES AND STANDARDS
The following is a list of publications referenced in this Volume.